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Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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1

Propulsion and stabilization system for magnetically levitated vehicles  

DOE Patents (OSTI)

A propulsion and stabilization system for an inductive repulsion type magnetically levitated vehicle which is propelled and stabilized by a system which includes propulsion windings mounted above and parallel to vehicle-borne suspension magnets. A linear synchronous motor is part of the vehicle guideway and is mounted above and parallel to superconducting magnets attached to the magnetically levitated vehicle.

Coffey, Howard T. (Darien, IL)

1993-06-29T23:59:59.000Z

2

Propulsion and stabilization system for magnetically levitated vehicles  

DOE Patents (OSTI)

A propulsion and stabilization system for an inductive repulsion type magnetically levitated vehicle which is propelled and stabilized by a system which includes propulsion windings mounted above and parallel to vehicle-borne suspension magnets. A linear synchronous motor is part of the vehicle guideway and is mounted above and parallel to superconducting magnets attached to the magnetically levitated vehicle.

Coffey, H.T.

1992-12-31T23:59:59.000Z

3

Vehicle Technologies Office: Propulsion Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Materials Manufacturers use propulsion (or powertrain) materials in the components that move vehicles of every size and shape. Conventional vehicles use these materials in components such as the engine, transmission, fuel system, and exhaust after-treatment systems. Electric drive vehicles use propulsion materials in their electric motors and power electronics. Developing advanced propulsion materials is essential to commercializing new, highly efficient automotive technologies that have technical requirements that existing powertrain materials cannot meet. The Vehicle Technology Office's (VTO) research in propulsion materials focuses on four areas: Materials for hybrid and electric drive systems Materials for high efficiency combustion engines Materials to enable energy recovery systems and control exhaust gases

4

Evaluation of pulse power devices in electric vehicle propulsion systems  

DOE Green Energy (OSTI)

The application of pulse power devices in electric vehicle propulsion systems to load level the main energy storage battery has been studied. Both high energy density capacitors (ultracapacitors) and high power density, bipolar batteries are considered. Computer simulations of vehicle operation with hybrid (two power source) powertrains indicated the energy storage capacities of the pulse power devices required to load level the main battery are 300 to 500 Wh for the capacitors and 5 to 10 Ah for the bipolar batteries can be reduced from 79 W/kg to about 40 W/kg depending on the vehicle gradeability (speed, percent grade, and length of grade) desired. Evaluation of the status of the technology for the pulse power devices indicated that for both devices, improvements in technology are needed before the devices can be used in EV applications. In the case of the ultracapacitor, the energy density of present devices are 1 to 2 Wh/kg. A minimum energy density of about 5 Wh/kg is needed for electric vehicle applications. Progress in increasing the energy density of ultracapacitors has been rapid in recent years and the prospects for meeting the 5 Wh/kg requirement for EVs appear to be good. For bipolar batteries, a minimum power density of 500 W/kg is needed and the internal resistance must be reduced by about a factor of ten from that found in present designs.

Burke, A.F. (EG and G Idaho, Inc., Idaho Falls, ID (USA)); Dowgiallo, E.J. (USDOE, Washington, DC (USA))

1990-01-01T23:59:59.000Z

5

Integrated null-flux suspension and multiphase propulsion system for magnetically-levitated vehicles  

DOE Patents (OSTI)

A propulsion and stabilization system are described comprising a series of coils mounted vertically on the walls of the guideway to provide suspension, lateral guidance, and propulsion of a magnetically levitated vehicle. This system further allows for altering the magnetic field effects by changing the relative position of the loops comprising the coils either longitudinally and/or vertically with resulting changes in the propulsion, the vertical stability, and the suspension. 8 figures.

Rote, D.M.; He, J.; Johnson, L.R.

1994-01-04T23:59:59.000Z

6

Integrated null-flux suspension and multiphase propulsion system for magnetically-levitated vehicles  

DOE Patents (OSTI)

This report discusses a propulsion and stabilization system comprising a series of figure 8 coils mounted vertically on the walls of the guideway to provide suspension, lateral guidance and propulsion of a magnetically levitated vehicle. This system further allows for altering the magnetic field effects by changing the relative position of the loops comprising the figure 8 coils either longitudinally and/or vertically with resulting changes in the propulsion, the vertical stability, and the suspension.

Rote, D.M.; He, Jianliang; Johnson, L.R.

1992-01-01T23:59:59.000Z

7

Electric vehicle battery R D in the context of a propulsion system  

SciTech Connect

A battery system for an electric vehicle should be designed and developed in concert with the other components of the propulsion system. Technology development efforts sponsored by the US Department of Energy are addressing all the constituent electric vehicle component technologies, including the battery subsystem technologies, from the perspective of the complete propulsion system. This approach is considered to be essential for three reasons. First, the ultimate viability of a given battery technology can only be assured in the context of a complete propulsion system. Second, many required battery subsystem technology advancements can only be addressed in concert with the other propulsion system components. Third, development and testing of battery subsystem technologies in conjunction with powertrain subsystem technology development is necessary in order to provide essential information to the battery developer and to the vehicle developer that can not be obtained when battery development is performed as a discrete activity. 7 refs., 6 figs.

Patil, P.G. (USDOE Assistant Secretary for Conservation and Renewable Energy, Washington, DC (USA). Office of Transportation Systems); Christianson, C.C.; Miller, J.F. (Argonne National Lab., IL (USA))

1989-01-01T23:59:59.000Z

8

Vehicle Technologies Office: Propulsion Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

Materials Manufacturers use propulsion (or powertrain) materials in the components that move vehicles of every size and shape. Conventional vehicles use these materials in...

9

Heavy vehicle propulsion system materials program semiannual progress report for April 1999 through September 1999  

DOE Green Energy (OSTI)

The purpose of the Heavy Vehicle Propulsion System Materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1-3 trucks to realize a 35% fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7-8 trucks.

Johnson, D.R.

2000-01-01T23:59:59.000Z

10

Heavy vehicle propulsion system materials program semiannual progress report for April 1998 thru September 1998  

DOE Green Energy (OSTI)

The purpose of the Heavy Vehicle Propulsion System Materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1--3 trucks to realize a 35{percent} fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7--8 trucks. The Office of Transportation Technologies, Office of Heavy Vehicle Technologies (OTT OHVT) has an active program to develop the technology for advanced LE-55 diesel engines with 55{percent} efficiency and low emissions levels of 2.0 g/bhp-h NO{sub x} and 0.05 g/bhp-h particulates. The goal is also for the LE-55 engine to run on natural gas with efficiency approaching that of diesel fuel. The LE-55 program is being completed in FY 1997 and, after approximately 10 years of effort, has largely met the program goals of 55{percent} efficiency and low emissions. However, the commercialization of the LE-55 technology requires more durable materials than those that have been used to demonstrate the goals. Heavy Vehicle Propulsion System Materials will, in concert with the heavy-duty diesel engine companies, develop the durable materials required to commercialize the LE-55 technologies.

Johnson, D.R.

1999-01-01T23:59:59.000Z

11

Heavy vehicle hybrid propulsion systems R and D program plan, FY 2000-2005  

DOE Green Energy (OSTI)

This report contains the program plan and background information for the Heavy Vehicle Hybrid Propulsion R and D Program sponsored by the Department of Energy's Office of Heavy Vehicle Technologies. The program is a collaboration between industry and government established for the development of advanced hybrid-electric propulsion technology for urban cycle trucks and buses. It targets specific applications to enhance potential market success. Potential end-users are also involved.

None

2000-07-01T23:59:59.000Z

12

Fuel cell powered propulsion systems for highway vehicles  

SciTech Connect

Over the past thirty-five years, the transportation sector has accounted for approx.25% of the total gross energy consumption in the US. Transportation's share of petroleum use in this time frame has ranged from 50 to 55%. Therefore, the use of fuel cell power plants that could possibly operate more efficiently than internal combustion engines in this type of application has been examined. In addition, these fuel cell power plants can operate on methanol produced from indigenous, non-petroleum sources and thereby reduce US dependency on petroleum resources. Fuel cell power plant use in city buses and automobiles has been explored and feasibility determined from both performance and cost viewpoints. Fuel cell systems for transportation applications have been selected on the basis of state-of-development, performance (both present and projected), and fuel considerations. In the last 25 years, most of the development work by research organizations and industrial firms has focused on five types of fuel cells, classified according to the electrolyte used. In terms of the overall state-of-development of systems, the ranking is as follows: (1) phosphoric acid, (2) alkaline, (3) proton exchange membrane, (4) molten carbonate, and (5) solid oxide.

Huff, J.R.; Vanderborgh, N.E.; Roach, J.F.; Murray, H.S.

1987-01-01T23:59:59.000Z

13

Heavy vehicle propulsion system materials program: Semiannual progress report, April 1996--September 1996  

DOE Green Energy (OSTI)

The purpose of the Heavy Vehicle Propulsion System Materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1-3 trucks to realize a 35% fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7-8 trucks. The Office of Transportation Technologies, Office of Heavy Vehicle Technologies (OTT OHVT) has an active program to develop the technology for advanced LE-55 diesel engines with 55% efficiency and low emissions levels of 2.0 g/bhp-h NO{sub x} and 0.05 g/bhp-h particulates. The goal is also for the LE-55 engine to run on natural gas with efficiency approaching that of diesel fuel. The LE-55 program is being completed in FY 1997 and, after approximately 10 years of effort, has largely met the program goals of 55% efficiency and low emissions. However, the commercialization of the LE-55 technology requires more durable materials than those that have been used to demonstrate the goals. Heavy Vehicle Propulsion System Materials will, in concert with the heavy duty diesel engine companies, develop the durable materials required to commercialize the LE-55 technologies. OTT OHVT also recognizes a significant opportunity for reduction in petroleum consumption by dieselization of pickup trucks, vans, and sport utility vehicles. Application of the diesel engine to class 1, 2, and 3 trucks is expected to yield a 35% increase in fuel economy per vehicle. The foremost barrier to diesel use in this market is emission control. Once an engine is made certifiable, subsequent challenges will be in cost; noise, vibration, and harshness (NVH); and performance. Separate abstracts have been submitted to the database for contributions to this report.

Johnson, D.R.

1997-04-01T23:59:59.000Z

14

Propulsion system for a motor vehicle using a bidirectional energy converter  

DOE Patents (OSTI)

A motor vehicle propulsion system includes an electrical energy source and a traction motor coupled to receive electrical energy from the electrical energy source. The system also has a first bus provided electrical energy by the electrical energy source and a second bus of relatively lower voltage than the first bus. In addition, the system includes an electrically-driven source of reaction gas for the electrical energy source, the source of reaction gas coupled to receive electrical energy from the first bus. Also, the system has an electrical storage device coupled to the second bus for storing electrical energy at the lower voltage. The system also includes a bidirectional energy converter coupled to convert electrical energy from the first bus to the second bus and from the second bus to the first bus.

Tamor, Michael Alan (Toledo, OH); Gale, Allan Roy (Livonia, MI)

1999-01-01T23:59:59.000Z

15

Heavy Vehicle Propulsion System Materials Program Semiannual Progress Report for October 1998 Through March 1999  

DOE Green Energy (OSTI)

The purpose of the Heavy Vehicle Propulsion System Materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1-3 trucks to realize a 35% fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7-8 trucks. The Office of Transportation Technologies, Office of Heavy Vehicle Technologies (OIT OHVT) has an active program to develop the technology for advanced LE-55 diesel engines with 55% efficiency and low emissions levels of 2.0 g/bhp-h NOX and 0.05 g/bhp-h particulate. The goal is also for the LE-55 engine to run on natural gas with efficiency approaching that of diesel fuel. The LE-55 program is being completed in FY 1997 and, after approximately 10 years of effort, has largely met the program goals of 55% efficiency and low emissions. However, the commercialization of the LE-55 technology requires more durable materials than those that have been used to demonstrate the goals. Heavy Vehicle Propulsion System Materials will, in concert with the heavy duty diesel engine companies, develop the durable materials required to commercialize the LE-55 technologies. OIT OHVT also recognizes a significant opportunity for reduction in petroleum consumption by dieselization of pickup trucks, vans, and sport utility vehicles. Application of the diesel engine to class 1,2, and 3 trucks is expected to yield a 35% increase in fuel economy per vehicle. The foremost barrier to diesel use in this market is emission control. Once an engine is made certifiable, subsequent challenges will be in cost; noise, vibration, and harshness (NVH); and performance. The design of advanced components for high-efficiency diesel engines has, in some cases, pushed the performance envelope for materials of construction past the point of reliable operation. Higher mechanical and tribological stresses and higher temperatures of advanced designs limit the engine designer; advanced materials allow the design of components that may operate reliably at higher stresses and temperatures, thus enabling more efficient engine designs. Advanced materials also offer the opportunity to improve the emissions, NVH, and performance of diesel engines for pickup trucks, vans, and sport utility vehicles. The principal areas of research are: (1) Cost Effective High Performance Materials and Processing; (2) Advanced Manufacturing Technology; (3)Testing and Characterization; and (4) Materials and Testing Standards.

Johnson, R.D.

1999-06-01T23:59:59.000Z

16

Hypersonic missile propulsion system  

Science Conference Proceedings (OSTI)

Pratt and Whitney is developing the technology for hypersonic components and engines. A supersonic combustion ramjet (scramjet) database was developed using hydrogen fueled propulsion systems for space access vehicles and serves as a point of departure for the current development of hydrocarbon scramjets. The Air Force Hypersonic Technology (HyTech) Program has put programs in place to develop the technologies necessary to demonstrate the operability, performance and structural durability of an expendable, liquid hydrocarbon fueled scramjet system that operates from Mach 4 to 8. This program will culminate in a flight type engine test at representative flight conditions. The hypersonic technology base that will be developed and demonstrated under HyTech will establish the foundation to enable hypersonic propulsion systems for a broad range of air vehicle applications from missiles to space access vehicles. A hypersonic missile flight demonstration is planned in the DARPA Affordable Rapid Response Missile Demonstrator (ARRMD) program in 2001.

Kazmar, R.R.

1998-11-01T23:59:59.000Z

17

Heavy Vehicle Propulsion Materials Program  

DOE Green Energy (OSTI)

The objective of the Heavy Vehicle Propulsion Materials Program is to develop the enabling materials technology for the clean, high-efficiency diesel truck engines of the future. The development of cleaner, higher-efficiency diesel engines imposes greater mechanical, thermal, and tribological demands on materials of construction. Often the enabling technology for a new engine component is the material from which the part can be made. The Heavy Vehicle Propulsion Materials Program is a partnership between the Department of Energy (DOE), and the diesel engine companies in the United States, materials suppliers, national laboratories, and universities. A comprehensive research and development program has been developed to meet the enabling materials requirements for the diesel engines of the future. Advanced materials, including high-temperature metal alloys, intermetallics, cermets, ceramics, amorphous materials, metal- and ceramic-matrix composites, and coatings, are investigated for critical engine applications.

Sidney Diamond; D. Ray Johnson

1999-04-26T23:59:59.000Z

18

Integrated Vehicle Thermal Management for Advanced Vehicle Propulsion Technologies  

DOE Green Energy (OSTI)

A critical element to the success of new propulsion technologies that enable reductions in fuel use is the integration of component thermal management technologies within a viable vehicle package. Vehicle operation requires vehicle thermal management systems capable of balancing the needs of multiple vehicle systems that may require heat for operation, require cooling to reject heat, or require operation within specified temperature ranges. As vehicle propulsion transitions away from a single form of vehicle propulsion based solely on conventional internal combustion engines (ICEs) toward a wider array of choices including more electrically dominant systems such as plug-in hybrid electric vehicles (PHEVs), new challenges arise associated with vehicle thermal management. As the number of components that require active thermal management increase, so do the costs in terms of dollars, weight, and size. Integrated vehicle thermal management is one pathway to address the cost, weight, and size challenges. The integration of the power electronics and electric machine (PEEM) thermal management with other existing vehicle systems is one path for reducing the cost of electric drive systems. This work demonstrates techniques for evaluating and quantifying the integrated transient and continuous heat loads of combined systems incorporating electric drive systems that operate primarily under transient duty cycles, but the approach can be extended to include additional steady-state duty cycles typical for designing vehicle thermal management systems of conventional vehicles. The work compares opportunities to create an integrated low temperature coolant loop combining the power electronics and electric machine with the air conditioning system in contrast to a high temperature system integrated with the ICE cooling system.

Bennion, K.; Thornton, M.

2010-04-01T23:59:59.000Z

19

Vehicle Technologies Office: Hybrid and Vehicle Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Hybrid and Vehicle Hybrid and Vehicle Systems to someone by E-mail Share Vehicle Technologies Office: Hybrid and Vehicle Systems on Facebook Tweet about Vehicle Technologies Office: Hybrid and Vehicle Systems on Twitter Bookmark Vehicle Technologies Office: Hybrid and Vehicle Systems on Google Bookmark Vehicle Technologies Office: Hybrid and Vehicle Systems on Delicious Rank Vehicle Technologies Office: Hybrid and Vehicle Systems on Digg Find More places to share Vehicle Technologies Office: Hybrid and Vehicle Systems on AddThis.com... Just the Basics Hybrid & Vehicle Systems Modeling & Simulation Integration & Validation Benchmarking Parasitic Loss Reduction Propulsion Systems Advanced Vehicle Evaluations Energy Storage Advanced Power Electronics & Electrical Machines

20

Heavy vehicle propulsion system materials program semi-annual progress report for October 1997 through March 1998  

DOE Green Energy (OSTI)

The purpose of the Heavy Vehicle Propulsion System materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1--3 trucks to realize a 35{percent} fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7--8 trucks. The Office of Transportation Technologies, Office of Heavy Vehicle Technologies (OTT OHVT) has an active program to develop the technology for advanced LE-55 diesel engines with 55{percent} efficiency and low emissions levels of 2.0 g/bhp-h NO{sub x} and 0.05 g/bhp-h particulates. The goal is also for the LE-55 engine to run on natural gas with efficiency approaching that of diesel fuel. The LE-55 program is being completed in FY 1997 and, after approximately 10 years of effort, has largely met the program goals of 55{percent} efficiency and low emissions. However, the commercialization of the LE-55 technology requires more durable materials than those that have been used to demonstrate the goals. Heavy Vehicle Propulsion System Materials will, in concert with the heavy-duty diesel engine companies, develop the durable materials required to commercialize the LE-55 technologies.

Johnson, D.R.

1998-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Efficiency and Loss Models for Key Electronic Components of Hybrid and Plug-in Hybrid Electric Vehicles' Electrical Propulsion Systems  

DOE Green Energy (OSTI)

Isolated gate bipolar transistors (IGBTs) are widely used in power electronic applications including electric, hybrid electric, and plug-in hybrid electric vehicles (EVs, HEVs, and PHEVs). The trend towards more electric vehicles (MEVs) has demanded the need for power electronic devices capable of handling power in the range of 10-100 kW. However, the converter losses in this power range are of critical importance. Therefore, thermal management of the power electronic devices/converters is crucial for the reliability and longevity of the advanced vehicles. To aid the design of heat exchangers for the IGBT modules used in propulsion motor drives, a loss model for the IGBTs is necessary. The loss model of the IGBTs will help in the process of developing new heat exchangers and advanced thermal interface materials by reducing cost and time. This paper deals with the detailed loss modeling of IGBTs for advanced electrical propulsion systems. An experimental based loss model is proposed. The proposed loss calculation method utilizes the experimental data to reconstruct the loss surface of the power electronic devices by means of curve fitting and linear extrapolating. This enables the calculation of thermal losses in different voltage, current, and temperature conditions of operation. To verify the calculation method, an experimental test set-up was designed and built. The experimental set-up is an IGBT based bi-directional DC/DC converter. In addition, simulation results are presented to verify the proposed calculation method.

Cao, J.; Bharathan, D.; Emadi, A.

2007-01-01T23:59:59.000Z

22

Heavy Vehicle Propulsion Materials Program: Progress and Highlights  

DOE Green Energy (OSTI)

The Heavy Vehicle Propulsion Materials Program was begun in 1997 to support the enabling materials needs of the DOE Office of Heavy Vehicle Technologies (OHVT). The technical agenda for the program grew out of the technology roadmap for the OHVT and includes efforts in materials for: fuel systems, exhaust aftertreatment, valve train, air handling, structural components, electrochemical propulsion, natural gas storage, and thermal management. A five-year program plan was written in early 2000, following a stakeholders workshop. The technical issues and planned and ongoing projects are discussed. Brief summaries of several technical highlights are given.

D. Ray Johnson; Sidney Diamond

2000-06-19T23:59:59.000Z

23

Variable-reluctance motors for electric vehicle propulsion  

SciTech Connect

This paper discusses the design, operation, and expected performance of a 60-kW variable-reluctance motor and inverter-designed for electric vehicle propulsion. To substantiate the performance of this system, experimental data obtained with a prototype 3.8-kW motor and inverter are provided.

Vallese, F.J.; Lang, J.H.

1985-01-01T23:59:59.000Z

24

Design and characterization of Hover Nano Aerial Vehicle (HNAV) propulsion system  

E-Print Network (OSTI)

On October 4th 2005, DARPA released a request for proposals for a Nano-Air Vehicle (NAV) program. The program sought to develop an advanced urban reconnaissance vehicle. According the requirement imposed by DARPA, the NAV ...

Sato, Sho, Ph. D. Massachusetts Institute of Technology

2008-01-01T23:59:59.000Z

25

Design and Control of the Propulsion System of a Series Hybrid Electric Vehicle  

Science Conference Proceedings (OSTI)

Hybrid Electric Vehicles, HEV, are an attractive opportunity to use new energy sources in road transportation, not only to minimize fuel consumption but also to reduce air pollution. Efforts are being made to improve the HEV electrical subsystems, such ...

Patricia Caratozzolo; Manuel Canseco

2006-09-01T23:59:59.000Z

26

Design and Optimization of Future Hybrid and Electric Propulsion Systems  

E-Print Network (OSTI)

Design and Optimization of Future Hybrid and Electric Propulsion Systems: An Advanced Tool and Optimization of Future Hybrid and Electric Propulsion Systems: An Advanced Tool Integrated in a Complete Hybrid Electric Vehicle ICE Internal Combustion Engine IM Induction Machine IPM Internal Permanent Magnet

Paris-Sud XI, Université de

27

An Airbreathing Launch Vehicle Design with Turbine-Based Low-Speed Propulsion and Dual Mode Scramjet High-Speed Propulsion  

E-Print Network (OSTI)

Airbreathing launch vehicles continue to be a subject of great interest in the space access community. In particular, horizontal takeoff and horizontal landing vehicles are attractive with their airplane-like benefits and flexibility for future space launch requirements. The most promising of these concepts involve airframe integrated propulsion systems, in which the external undersurface of the vehicle forms part of the propulsion flowpath. Combining of airframe and engine functions in this manner involves all of the design disciplines interacting at once. Design and optimization of these configurations is a most difficult activity, requiring a multi-discipline process to analytically resolve the numerous interactions among the design variables. This paper describes the design and optimization of one configuration in this vehicle class, a lifting body with turbine-based low-speed propulsion. The integration of propulsion and airframe, both from an aero-propulsive and mechanical perspe...

Moses Bouchard Vause; L. W. Taylor Lll; P. L. Moses; P. L. Moses; K. A. Bouchard; K. A. Bouchard; R. F. Vause; R. F. Vause; S. Z. Pinckney; S. Z. Pinckney; L. W. Taylor Iii; S. M. Ferlemann; S. M. Ferlemann; C. P. Leonard; C. P. Leonard; J. S. Robinson; J. S. Robinson; J. G. Martin; J. G. Martin; D. H. Petley; D. H. Petley; J. L. Hunt; J. L. Hunt

1999-01-01T23:59:59.000Z

28

Heavy Vehicle Propulsion Materials: Recent Progress and Future Plans  

DOE Green Energy (OSTI)

The Heavy Vehicle Propulsion Materials Program provides enabling materials technology for the U.S. DOE Office of Heavy Vehicle Technologies (OHVT). The technical agenda for the program is based on an industry assessment and the technology roadmap for the OHVT. A five-year program plan was published in 2000. Major efforts in the program are materials for diesel engine fuel systems, exhaust aftertreatment, and air handling. Additional efforts include diesel engine valve-train materials, structural components, and thermal management. Advanced materials, including high-temperature metal alloys, intermetallics, cermets, ceramics, amorphous materials, metal- and ceramic-matrix composites, and coatings, are investigated for critical engine applications. Selected technical issues and planned and ongoing projects as well as brief summaries of several technical highlights are given.

D. Ray Johnson; Sidney Diamond

2001-05-14T23:59:59.000Z

29

THE NUCLEAR ROCKET: NEW POWERPLANT FOR SPACE VEHICLE PROPULSION  

SciTech Connect

A fundamental and practical survey is made of nuclear rocket application to space vehicle propulsion. The engine is described and propellant and radiation effects are discussed. Project Rover is summarized and performance requirements for a space vehicle are discussed. It is concluded that nuclear rockets can provide substantial performance, reliability, and economic advantages for difficult space missions. (T.R.H.)

Schmidt, H.R.; Decker, R.S.

1960-03-01T23:59:59.000Z

30

Performance testing of the AC propulsion ELX electric vehicle  

DOE Green Energy (OSTI)

Performance testing of the AC Propulsion ELX electric vehicle is described. Test data are presented and analyzed. The ELX vehicle is the first of a series of electric vehicles of interest to the California Air Resources Board. The test series is being conducted under a Cooperative Research and Development Agreement (CRADA) between the US Department of energy and the California Air Resources Board. The tests which were conducted showed that the AC Propulsion ELX electric vehicle has exceptional acceleration and range performance. when the vehicle`s battery was fully charged, the vehicle can accelerate from 0 to 96 km/h in about 10 seconds. Energy consumption and range tests using consecutive FUDS and HWFET Driving cycles (the all-electric cycle) indicate that the energy economy of the AC Propulsion ELX electric vehicle with regenerative braking is 97 W{center_dot}h/km, with a range of 153 km (95 miles). Computer simulations performed using the SIMPLEV Program indicate that the vehicle would have a range of 327 km (203 miles) on the all-electric cycle if the lead acid batteries were replaced with NiMH batteries having an energy density of 67 W{center_dot}h/kg. Comparisons of FUDS test data with and without regenerative braking indicated that regenerative braking reduced the energy consumption of the ELX vehicle by approximately 25%.

Kramer, W.E.; MacDowall, R.D.; Burke, A.F.

1994-06-01T23:59:59.000Z

31

HybriDrive Propulsion System  

NLE Websites -- All DOE Office Websites (Extended Search)

HybriDrive HybriDrive ® Propulsion System Cleaner, smarter power for transit DOE/FTA Fuel Cell Research Priorities Workshop Washington, DC 7 June 2010 Bart W. Mancini Sr. Principal Systems Engineer BAE Systems Ph: 607-770-4103 bart.mancini@baesystems.com 2 Overview 3 * BAE Systems FC Experience / Deployments * Technology gaps/barriers to full commercialization of fuel cell buses * Well-to-wheels energy efficiency and emissions * Cost metrics * Bus integration issues * Fuel cell bus R&D needs * Future plans BAE Systems FC Experience / Deployments 4 * 1998 - Georgetown/FTA/DOE Fuel Cell Bus #1 (still serviceable) * UTC 100 kW Phosphoric Acid FC using on-board Methanol Reformate, Hybrid propulsion & Electric accessories * 2000 - Georgetown/FTA/DOE Fuel Cell Bus #2 (retired) *

32

FY2001 Annual Progress Report for the Vehicle Propulsion & Ancillary Subsystems Program  

NLE Websites -- All DOE Office Websites (Extended Search)

PROPULSION & PROPULSION & ANCILLARY SUBSYSTEMS 2 0 0 1 A N N UA L P R O G R E S S R E P O R T U.S. Department of Energy Energy Efficiency and Renewable Energy Office of Transportation Technologies A C K N O W L E D G E M E N T We would like to express our sincere appreciation to Argonne National Laboratory and Computer Systems Management, Inc., for their artistic and technical contributions in preparing and publishing this report. In addition, we would like to thank all our program participants for their contributions to the programs and all the authors who prepared the project abstracts that comprise this report. U.S. Department of Energy Office of Advanced Automotive Technologies 1000 Independence Avenue, S.W. Washington, D.C. 20585-0121 FY 2001 Annual Progress Report for the Vehicle Propulsion & Ancillary Subsystems Program

33

Enabling Green Energy and Propulsion Systems via Direct Noise...  

NLE Websites -- All DOE Office Websites (Extended Search)

GE propulsion systems Enabling Green Energy and Propulsion Systems via Direct Noise Computation PI Name: Umesh Paliath PI Email: paliath@ge.com Institution: GE Global Research...

34

Integrated Vehicle Thermal Management for Advanced Vehicle Propulsion Technologies: Preprint  

DOE Green Energy (OSTI)

Techniques for evaluating and quantifying integrated transient and continuous heat loads of combined systems incorporating electric drive systems operating primarily under transient duty cycles.

Bennion, K.; Thornton, M.

2010-02-01T23:59:59.000Z

35

AC Propulsion | Open Energy Information  

Open Energy Info (EERE)

founded in 1992 to develop, manufacture, and license system and component technology for electric vehicle drive systems. References AC Propulsion1 LinkedIn Connections...

36

Vehicle Technologies Office: Hybrid and Vehicle Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Hybrid and Vehicle Systems Hybrid and vehicle systems research provides an overarching vehicle systems perspective to the technology research and development (R&D) activities of...

37

Hydrogen peroxide-based propulsion and power systems.  

DOE Green Energy (OSTI)

Less toxic, storable, hypergolic propellants are desired to replace nitrogen tetroxide (NTO) and hydrazine in certain applications. Hydrogen peroxide is a very attractive replacement oxidizer, but finding acceptable replacement fuels is more challenging. The focus of this investigation is to find fuels that have short hypergolic ignition delays, high specific impulse, and desirable storage properties. The resulting hypergolic fuel/oxidizer combination would be highly desirable for virtually any high energy-density applications such as small but powerful gas generating systems, attitude control motors, or main propulsion. These systems would be implemented on platforms ranging from guided bombs to replacement of environmentally unfriendly existing systems to manned space vehicles.

Melof, Brian Matthew; Keese, David L.; Ingram, Brian V.; Grubelich, Mark Charles; Ruffner, Judith Alison; Escapule, William Rusty

2004-04-01T23:59:59.000Z

38

The Evolution of Sustainable Personal Vehicles  

E-Print Network (OSTI)

Propulsion Systems for Hybrid Vehicles. The Institution ofA.B. (1996). Ultralight-Hybrid Vehicle Design: OvercomingLightweight Electric/Hybrid Vehicle Design. Reel Educational

Jungers, Bryan D

2009-01-01T23:59:59.000Z

39

ELECTRIC PROPULSION APPLICATIONS FOR SNAP SYSTEMS  

SciTech Connect

The application of SNAP systems to electric propulsion was investigated. A review is given of the basic analysis involved in establishing optimum power levels and payload capabilities for electric spacecraft, and several typical missions are analyzed to determine the usefulness of the SNAP systems which are under development or systems which are based on the current SNAP technology. In general, it is found that SNAP power units in the range of 60 to 180 kw offer significant mission capability when used in conjunction with initial spacecraft weights of about 10,000 lb in a low-level orbit. (auth)

Morse, C.J.

1962-04-01T23:59:59.000Z

40

Enabling Green Energy and Propulsion Systems via Direct Noise...  

NLE Websites -- All DOE Office Websites (Extended Search)

Umesh Paliath, GE Global Research; Joe Insley, Argonne National Laboratory Enabling Green Energy and Propulsion Systems via Direct Noise Computation PI Name: Umesh Paliath PI...

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Large-Eddy Simulation for Green Energy and Propulsion Systems...  

NLE Websites -- All DOE Office Websites (Extended Search)

Large-Eddy Simulation for Green Energy and Propulsion Systems PI Name: Umesh Paliath PI Email: paliath@ge.com Institution: General Electric Allocation Program: INCITE Allocation...

42

Research, development, and demonstration of nickel-iron batteries for electric vehicle propulsion. Annual report, 1980  

DOE Green Energy (OSTI)

The objective of the Eagle-Picher nickel-iron battery program is to develop a nickel-iron battery for use in the propulsion of electric and electric-hybrid vehicles. To date, the program has concentrated on the characterization, fabrication and testing of the required electrodes, the fabrication and testing of full-scale cells, and finally, the fabrication and testing of full-scale (270 AH) six (6) volt modules. Electrodes of the final configuration have now exceeded 1880 cycles and are showing minimal capacity decline. Full-scale cells have presently exceeded 600 cycles and are tracking the individual electrode tests almost identically. Six volt module tests have exceeded 500 cycles, with a specific energy of 48 Wh/kg. Results to date indicate the nickel-iron battery is beginning to demonstrate the performance required for electric vehicle propulsion.

Not Available

1981-03-01T23:59:59.000Z

43

Performance and life evaluation of nickel/iron battery technology for dual shaft electric propulsion vehicle  

SciTech Connect

As part of a cost-shared contract between the US Department of Energy (Office of Transportation Systems) and Eaton Corp. to develop an advanced dual shaft electric propulsion (DSEP) vehicle, several nickel/iron (Ni/Fe) batteries were designed and procured from Eagle-Picher Industries (EPI) for evaluation and vehicle use. In March 1986, two individual 5-cell Ni/Fe modules and a 140-cell (28-module) battery pack were delivered to Argonne for evaluation. Performance characterization tests were conducted on the two modules and life testing performed on the battery pack. Module performance testing was completed in early 1987 after about 215 cycles of operation. Each module still retained {approximately}90% of its initial 180-Ah capacity at the end of testing ({approximately}163 Ah/970 Wh). Life evaluation of the 168-V, 28-kWh battery pack was conducted with driving profile discharges. A 1377-s power profile that represented the battery load in a DSEP vehicle undergoing a Federal Urban Driving Schedule (FUDS) was used. Testing was temporarily suspended in October 1987 after the battery pack had accumulated 502 cycles (209 cycles in 1986). After a three-month trickle charge ({approximately}3 A), testing was resumed (January 1988) with driving profile discharges. In March 1988, battery performance was being limited by three modules. After 545 cycles, the three modules were removed from the pack. Battery performance, however, continued to decline and another four modules were removed in September 1988 (645 cycles). Several remaining modules started to exhibit a high self-discharge loss and a capacity of only 119 Ah (15.1 kWh) could be achieved. The life evaluation was halted in October 1988 after 661 cycles had been accumulated. This report outlines the test activities and presents the performance results of the individual modules and the battery pack involved in this technology evaluation. 18 figs., 4 tabs.

DeLuca, W. (ed.)

1990-05-01T23:59:59.000Z

44

Modeling, simulation, and analysis of series hybrid electric vehicles for fuel economy improvement.  

E-Print Network (OSTI)

??A hybrid electric vehicle (HEV) combines a conventional internal combustion engine (ICE) propulsion system with an electric propulsion system. In a series HEV, an electric (more)

Khandaker, Masuma

2011-01-01T23:59:59.000Z

45

VEHICLE DETAILS, BATTERY DESCRIPTION AND SPECIFICATIONS Vehicle...  

NLE Websites -- All DOE Office Websites (Extended Search)

Page 1 VEHICLE DETAILS, BATTERY DESCRIPTION AND SPECIFICATIONS Vehicle Details Base Vehicle: 2011 Nissan Leaf VIN: JN1AZ0CP5BT000356 Propulsion System: BEV Electric Machine: 80 kW...

46

Novel turbomachinery concepts for highly integrated airframe/propulsion systems  

E-Print Network (OSTI)

Two novel turbomachinery concepts are presented as enablers to advanced flight missions requiring integrated airframe/propulsion systems. The first concept is motivated by thermal management challenges in low-to-high Mach ...

Shah, Parthiv N

2007-01-01T23:59:59.000Z

47

DOE Scientist Earns Chairman's Award from Propulsion and Power Systems  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Scientist Earns Chairman's Award from Propulsion and Power Scientist Earns Chairman's Award from Propulsion and Power Systems Alliance DOE Scientist Earns Chairman's Award from Propulsion and Power Systems Alliance October 2, 2009 - 1:00pm Addthis Washington, DC - A researcher at the Office of Fossil Energy's National Energy Technology Laboratory (NETL) has been presented with the Chairman's Award by the Propulsion and Power Systems Alliance (PPSA). Mary Anne Alvin, a physical scientist in NETL's Office of Research and Development, was recognized for her lead role in revitalizing the PPSA Materials Technical Area Team. This prestigious award is only given during a year when outstanding service is observed. The PPSA was formed in 1999 with the mission of improving coordination and collaboration among government agencies to better leverage existing federal

48

Electrochemical Capacitors as Energy Storage in Hybrid-Electric Vehicles: Present Status and Future Prospects  

E-Print Network (OSTI)

ultracapacitors, fuel cells and hybrid vehicle design. Dr.on electric and hybrid vehicle technology and applicationssupervises testing in the Hybrid Vehicle Propulsion Systems

Burke, Andy; Miller, Marshall

2009-01-01T23:59:59.000Z

49

Performance Characteristics of Lithium-ion Batteries of Various Chemistries for Plug-in Hybrid Vehicles  

E-Print Network (OSTI)

supervises testing in the Hybrid Vehicle Propulsion SystemsChemistries for Plug-in Hybrid Vehicles Andrew Burke,batteries, plug-in hybrid vehicles, energy density, pulse

Burke, Andrew; Miller, Marshall

2009-01-01T23:59:59.000Z

50

Validating simulation tools for vehicle system studies using advanced control and testing procedure.  

DOE Green Energy (OSTI)

Hybrid electric vehicles (HEVs) offer the potential to increase propulsion system efficiency and decrease pollutant emissions relative to conventional vehicles. The US Department of Energy (DOE) and the auto industry are developing HEV technology as part of the Partnership for a New Generation of Vehicles (PNGV) program. Argonne National Laboratory (ANL) supports the DOE in this program by contributing to technical target setting and evaluating new technologies in a vehicle systems context. In this role, ANL has developed a unique set of interrelated tools and facilities to analyze, develop, and validate components and propulsion systems in a vehicle environment.

Pasquier, M.; Duoba, M.; Rousseau, A.

2001-09-12T23:59:59.000Z

51

Single-shaft electric propulsion system technology development program -- ETX-II. Final technical report  

DOE Green Energy (OSTI)

In 1981, discussions between Ford and General Electric (GE) evolved a concept for an advanced electric vehicle powertrain, which was subsequently presented to the US Department of Energy (DOE) as an unsolicited proposal. The concept involved a combination of technology from Ford and GE that would result in a unique powertrain based on a motor and transmission concentric with the drive wheel axis. Initial work suggested that the entire motor/transaxle combination could be expected to be smaller and lighter than the direct current (dc) motors that were in use in electric vehicles at that time and that the powertrain could be expected to be more efficient than other available powertrains. This program (ETX-I) was awarded to Ford Motor Company and it was established that the most likely first introduction of an electric vehicle would be in the form of a fleet of small commercial vans. The ETX-II propulsion system concept was aimed at advancing the technology through improving the size, weight, efficiency, reliability, and cost characteristics of the ETX-I powertrain and by integrating advanced battery technologies compatible with the powertrain to form a complete propulsion system. Unique developments for the ETX-II program included the transaxle, a two-speed automatic transmission and three-phase interior permanent magnet alternating current (ac) motor on a common axis integrated with the rear axle of the test bed van; The traction battery selected for this propulsion system was the sodium-sulfur battery. This was the only advanced technology that had been developed to a point that would allow the test vehicle to have a range of over 160 kilometers (100 miles) without the battery exceeding 25% of the vehicle`s gross weight.

Not Available

1990-10-01T23:59:59.000Z

52

Vehicle Technologies Office: Battery Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Battery Systems to someone by E-mail Share Vehicle Technologies Office: Battery Systems on Facebook Tweet about Vehicle Technologies Office: Battery Systems on Twitter Bookmark...

53

A sodium-sulfur battery for the ETX-II propulsion system  

DOE Green Energy (OSTI)

A Canadian built 52 kWh sodium-sulphur battery is being integrated with the ETX-II powertrain. The propulsion system thus formed is being installed in a Ford Aerostar compact-size van for test and development purposes. The selection and design of the traction battery, as an integral part of the propulsion system, will be outlined in this paper along with the projected performance of the test bed vehicle under both highway and urban driving conditions. The results of a battery optimization study will also be discussed. Braking energy recovery (regeneration) is an important part of the ETX-II system capability and needs to be carefully managed when used with sodium-sulphur batteries. This will be discussed to show its effect on the system performance.

Altmejd, M. (Powerplex Technologies, Inc., Downsview, ON (Canada)); Dzieciuch, M. (Ford Motor Co., Dearborn, MI (United States))

1988-01-01T23:59:59.000Z

54

A sodium-sulfur battery for the ETX-II propulsion system  

Science Conference Proceedings (OSTI)

A Canadian built 52 kWh sodium-sulphur battery is being integrated with the ETX-II powertrain. The propulsion system thus formed is being installed in a Ford Aerostar compact-size van for test and development purposes. The selection and design of the traction battery, as an integral part of the propulsion system, will be outlined in this paper along with the projected performance of the test bed vehicle under both highway and urban driving conditions. The results of a battery optimization study will also be discussed. Braking energy recovery (regeneration) is an important part of the ETX-II system capability and needs to be carefully managed when used with sodium-sulphur batteries. This will be discussed to show its effect on the system performance.

Altmejd, M. [Powerplex Technologies, Inc., Downsview, ON (Canada); Dzieciuch, M. [Ford Motor Co., Dearborn, MI (United States)

1988-12-31T23:59:59.000Z

55

Single-shaft electric propulsion system technology development program -- ETX-II  

DOE Green Energy (OSTI)

In 1981, discussions between Ford and General Electric (GE) evolved a concept for an advanced electric vehicle powertrain, which was subsequently presented to the US Department of Energy (DOE) as an unsolicited proposal. The concept involved a combination of technology from Ford and GE that would result in a unique powertrain based on a motor and transmission concentric with the drive wheel axis. Initial work suggested that the entire motor/transaxle combination could be expected to be smaller and lighter than the direct current (dc) motors that were in use in electric vehicles at that time and that the powertrain could be expected to be more efficient than other available powertrains. This program (ETX-I) was awarded to Ford Motor Company and it was established that the most likely first introduction of an electric vehicle would be in the form of a fleet of small commercial vans. The ETX-II propulsion system concept was aimed at advancing the technology through improving the size, weight, efficiency, reliability, and cost characteristics of the ETX-I powertrain and by integrating advanced battery technologies compatible with the powertrain to form a complete propulsion system. Unique developments for the ETX-II program included the transaxle, a two-speed automatic transmission and three-phase interior permanent magnet alternating current (ac) motor on a common axis integrated with the rear axle of the test bed van; The traction battery selected for this propulsion system was the sodium-sulfur battery. This was the only advanced technology that had been developed to a point that would allow the test vehicle to have a range of over 160 kilometers (100 miles) without the battery exceeding 25% of the vehicle's gross weight.

Not Available

1990-10-01T23:59:59.000Z

56

ETX-I: First-generation single-shaft electric propulsion system program: Volume 2, Battery final report  

Science Conference Proceedings (OSTI)

The overall objective of this research and development program was to advance ac powertrain technology for electric vehicles (EV). The program focused on the design, build, test, and refinement of an experimental advanced electric vehicle powertrain suitable for packaging in a Ford Escort or equivalent-size vehicle. A Mercury LN7 was subsequently selected for the test bed vehicle. Although not part of the initial contract, the scope of the ETX-I Program was expanded in 1983 to encompass the development of advanced electric vehicle batteries compatible with the ETX-I powertrain and vehicle test bed. The intent of the battery portion of the ETX-I Program was to apply the best available battery technology based on existing battery developments. The battery effort was expected to result in a practical scale-up of base battery technologies to the vehicle battery subsystem level. With the addition of the battery activity, the ETX-I Program became a complete proof-of-concept ''ac propulsion system'' technology development program. In this context, the term ''propulsion system'' is defined as all components and subsystems (from the driver input to the vehicle wheels) that are required to store energy on board the vehicle and, using that energy, to provide controlled motive power to the vehicle. This report, Volume II, describes the battery portion of the ETX-I Program. The powertrain effort is reported in Volume I.

Not Available

1988-06-01T23:59:59.000Z

57

Reactors for nuclear electric propulsion  

SciTech Connect

Propulsion is the key to space exploitation and power is the key to propulsion. This paper examines the role of nuclear fission reactors as the primary power source for high specific impulse electric propulsion systems for space missions of the 1980s and 1990s. Particular mission applications include transfer to and a reusable orbital transfer vehicle from low-Earth orbit to geosynchronous orbit, outer planet exploration and reconnaissance missions, and as a versatile space tug supporting lunar resource development. Nuclear electric propulsion is examined as an indispensable component in space activities of the next two decades.

Buden, D.; Angelo, J.A. Jr.

1981-01-01T23:59:59.000Z

58

Handling effluent from nuclear thermal propulsion system ground tests  

SciTech Connect

A variety of approaches for handling effluent from nuclear thermal propulsion system ground tests in an environmentally acceptable manner are discussed. The functional requirements of effluent treatment are defined and concept options are presented within the framework of these requirements. System concepts differ primarily in the choice of fission-product retention and waste handling concepts. The concept options considered range from closed cycle (venting the exhaust to a closed volume or recirculating the hydrogen in a closed loop) to open cycle (real time processing and venting of the effluent). This paper reviews the different methods to handle effluent from nuclear thermal propulsion system ground tests.

Shipers, L.R.; Allen, G.C.

1992-09-09T23:59:59.000Z

59

Effluent treatment options for nuclear thermal propulsion system ground tests  

DOE Green Energy (OSTI)

A variety of approaches for handling effluent from nuclear thermal propulsion system ground tests in an environmentally acceptable manner are discussed. The functional requirements of effluent treatment are defined and concept options are presented within the framework of these requirements. System concepts differ primarily in the choice of fission-product retention and waste handling concepts. The concept options considered range from closed cycle (venting the exhaust to a closed volume or recirculating the hydrogen in a closed loop) to open cycle (real time processing and venting of the effluent). This paper reviews the strengths and weaknesses of different methods to handle effluent from nuclear thermal propulsion system ground tests.

Shipers, L.R.; Brockmann, J.E.

1992-10-16T23:59:59.000Z

60

Photon Tools for Fuel Spray Studies in Aerospace Propulsion Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Tools for Fuel Spray Studies in Aerospace Tools for Fuel Spray Studies in Aerospace Propulsion Systems Kuo-Cheng Lin, 1 Campbell D. Carter, 2 and Stephen A. Schumaker 3 1 Taitech, Inc., 1430 Oak Court, Suite 301, Beavercreek, OH 45430, USA; 2 Air Force Research Laboratory, Wright-Patterson Air Force Base, OH 45433, USA; 3 Air Force Research Laboratory, Edwards Air Force Base, CA 93524, USA Fuel injection plays an important role in establishing stable and efficient combustion inside the combustor of a liquid-fueled aerospace propulsion system. Depending on the application of interest, fuel injection conditions range from high-speed crossflows in the air-breathing propulsion systems to quiescent environments with extremely high pressures in the rocket engines. In addition to the typical liquid

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

NLE Websites -- All DOE Office Websites (Extended Search)

Page 1 of 6 VEHICLE DETAILS AND BATTERY SPECIFICATIONS 1 Vehicle Details Base Vehicle: 2013 Chevrolet Volt VIN: 1G1RA6E40DU103929 Propulsion System: Multi-Mode PHEV (EV, Series,...

62

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

NLE Websites -- All DOE Office Websites (Extended Search)

Page 1 VEHICLE DETAILS AND BATTERY SPECIFICATIONS 1 Vehicle Details Base Vehicle: 2011 Chevrolet Volt VIN: 1G1RD6E48BU100815 Propulsion System: Multi-Mode PHEV (EV, Series, and...

63

Research, development and demonstration of nickel-zinc batteries for electric vehicle propulsion. Annual report for 1978  

DOE Green Energy (OSTI)

This is the first annual report describing progress in the 33-month cooperative program between Argonne National Laboratory and Gould Inc.'s Nickel-Zinc/Electric Vehicle Project. The purpose of the program is to demonstrate the technical and economic feasibility of the nickel-zinc battery for electric vehicle propulsion. The successful completion of the program will qualify the nickel-zinc battery for use in the Department of Energy's demonstration program under the auspices of Public Law 94-413.

Not Available

1979-10-01T23:59:59.000Z

64

Modular Energy Storage System for Hydrogen Fuel Cell Vehicles  

SciTech Connect

The objective of the project is to develop technologies, specifically power electronics, energy storage electronics and controls that provide efficient and effective energy management between electrically powered devices in alternative energy vehicles ?? plug-in electric vehicles, hybrid vehicles, range extended vehicles, and hydrogen-based fuel cell vehicles. The in-depth research into the complex interactions between the lower and higher voltage systems from data obtained via modeling, bench testing and instrumented vehicle data will allow an optimum system to be developed from a performance, cost, weight and size perspective. The subsystems are designed for modularity so that they may be used with different propulsion and energy delivery systems. This approach will allow expansion into new alternative energy vehicle markets.

Janice Thomas

2010-05-31T23:59:59.000Z

65

Vehicle Technologies Office: Battery Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Battery Systems A hybrid vehicle uses two or more forms of energy to propel the vehicle. Many hybrid electric vehicles (HEV) sold today are referred to as "hybrids" because it...

66

Vehicle Technologies Office: U.S. DRIVE  

NLE Websites -- All DOE Office Websites (Extended Search)

electrochemical energy storage Electric propulsion systems (e.g., power electronics, electric motors) Fuel cell power systems Lightweight materials Vehicle systems and...

67

Heavy Vehicle Systems  

Science Conference Proceedings (OSTI)

Heavy Vehicle (HV) systems are a necessary component of achieving OHVT goals. Elements are in place for a far-ranging program: short, intermediate, and long-term. Solicitation will bring industrial input and support. Future funding trend is positive, outlook for HV systems is good.

Sid Diamond; Richard Wares; Jules Routbort

2000-04-11T23:59:59.000Z

68

Technology survey and performance scaling for the design of high power nuclear electric power and propulsion systems.  

E-Print Network (OSTI)

??High power nuclear electric propulsion systems have the capability to enable many next-generation space exploration applications. To date, use of electric primary propulsion in flight (more)

White, Daniel B., Jr

2011-01-01T23:59:59.000Z

69

A bimodal power and propulsion system based on cermet fuel and heat pipe energy transport  

DOE Green Energy (OSTI)

Bimodal space reactor systems provide both thermal propulsion for the spacecraft orbital transfer and electrical power to the spacecraft bus once it is on station. These systems have the potential to increase both the available payload in high energy orbits and the available power to that payload. These increased mass and power capabilities can be used to either reduce mission cost by permitting the use of smaller launch vehicles or to provide increased mission performance from the current launch vehicle. A major barrier to the deployment of these bimodal systems has been the cost associated with their development. This paper describes a bimodal reactor system with performance potential to permit more than 70% of the instrumented payload of the Titan IV/Centaur to be launched from the Atlas IIAS. The development cost is minimized by basing the design on existing component technologies.

Polansky, G.F. [Sandia National Labs., Albuquerque, NM (United States); Gunther, N.A. [Gunther (Norman A.), San Jose, CA (United States); Rochow, R.F. [Novatech, Lynchburg, VA (United States); Bixler, C.H. [Bixler (Charles H.), Mannford, OK (United States)

1995-05-01T23:59:59.000Z

70

Research and development of advanced nickel-iron batteries for electric vehicle propulsion  

DOE Green Energy (OSTI)

The purpose of this program has been to develop and demonstrate an advanced nickel-iron battery suitable for use in electric vehicles. During the course of this contract various steps and modification have been taken to improve Nickel-Iron battery performance while reducing cost. Improvement of the nickel electrode through slurry formulations and substrate changes, as seen with the fiber electrode, were investigated. Processing parameters for impregnation and formation were also manipulated to improve efficiency. Impregnation saw the change of anode type from platinized titanium to the consumable nickel anode. Formation changes were also made allowing for doubled processing capabilities of positive electrodes, a savings in both time and money. A final design change involved the evolution of the NIF-200 from the NIF-220. This change permitted the use of 1.2 mm iron electrodes and maintained the necessary performance characteristics for electric vehicle propulsion. Emphasis on a pilot plant became the main focus during the late 1989--90 period. The pilot plant facility would be a culmination of the program providing the best product at the lowest price.

Not Available

1991-01-01T23:59:59.000Z

71

Vehicle brake testing system  

SciTech Connect

This invention relates to a force measuring system capable of measuring forces associated with vehicle braking and of evaluating braking performance. The disclosure concerns an invention which comprises a first row of linearly aligned plates, a force bearing surface extending beneath and beside the plates, vertically oriented links and horizontally oriented links connecting each plate to a force bearing surface, a force measuring device in each link, a transducer coupled to each force measuring device, and a computing device coupled to receive an output signal from the transducer indicative of measured force in each force measuring device. The present invention may be used for testing vehicle brake systems.

Stevens, Samuel S [Harriman, TN; Hodgson, Jeffrey W [Lenoir City, TN

2002-11-19T23:59:59.000Z

72

Nuclear propulsion systems for orbit transfer based on the particle bed reactor  

DOE Green Energy (OSTI)

The technology of nuclear direct propulsion orbit transfer systems based on the Particle Bed Reactor (PBR) is described. A 200 megawatt illustrative design is presented for LEO to GEO and other high ..delta..V missions. The PBR-NOTV can be used in a one-way mode with the shuttle or an expendable launch vehicle, e.g., the Titan 34D7, or as a two-way reusable space tug. In the one-way mode, payload capacity is almost three times greater than that of chemical OTV's. PBR technology status is described and development needs outlined.

Powell, J.R.; Ludewig, H.; Horn, F.L.; Araj, K.; Benenati, R.; Lazareth, O.; Slovik, G.; Solon, M.; Tappe, W.; Belisle, J.

1987-01-01T23:59:59.000Z

73

Vehicle fuel system  

DOE Patents (OSTI)

A vehicle fuel system comprising a plurality of tanks, each tank having a feed and a return conduit extending into a lower portion thereof, the several feed conduits joined to form one supply conduit feeding fuel to a supply pump and using means, unused fuel being returned via a return conduit which branches off to the several return conduits.

Risse, John T. (Albuquerque, NM); Taggart, James C. (Albuquerque, NM)

1976-01-01T23:59:59.000Z

74

Optimal propulsion system design for a micro quad rotor.  

E-Print Network (OSTI)

?? Currently a 50 gram micro quad rotor vehicle is being developed in collaboration with Daedalus Flight Systems. Optimization of the design at this scale (more)

Harrington, Aaron M.

2011-01-01T23:59:59.000Z

75

Enabling Green Energy and Propulsion Systems via Direct Noise Computation |  

NLE Websites -- All DOE Office Websites (Extended Search)

High-fidelity simulation of exhaust nozzle under installed configuration High-fidelity simulation of exhaust nozzle under installed configuration Umesh Paliath, GE Global Research; Joe Insley, Argonne National Laboratory Enabling Green Energy and Propulsion Systems via Direct Noise Computation PI Name: Umesh Paliath PI Email: paliath@ge.com Institution: GE Global Research Allocation Program: INCITE Allocation Hours at ALCF: 105 Million Year: 2013 Research Domain: Engineering GE Global Research is using the Argonne Leadership Computing Facility (ALCF) to deliver significant improvements in efficiency, (renewable's) yield and lower emissions (noise) for advanced energy and propulsion systems. Understanding the fundamental physics of turbulent mixing has the potential to transform product design for components such as airfoils and

76

REFRIGERANT-BASED PROPULSION SYSTEM FOR SMALL SPACECRAFT  

E-Print Network (OSTI)

The MR SAT spacecraft under development at UMR requires a propulsion system that can be utilized to perform orbital maneuvers and three-axis attitude control to complete its mission objective of conducting spacecraft formation flight. This thesis documents the research, analysis design and development of the cold gas propulsion system that was integrated in the MR SAT spacecraft. The basis of design and safety requirements stemmed from the AFRL University Nanosat Program competition, in which the UMR SAT project placed third out of eleven schools from across the nation. The MR SAT propulsion system was a primary feature as it implements a refrigerant (R-134a) propellant that has never been flown in space. As detailed in this thesis, through engineering modeling and laboratory testing R-134a is demonstrated to be a feasible propellant for small spacecraft. As the R-134a is stored as a saturated liquid in the tank, it was necessary to analyze the thermodynamic properties of the refrigerant and investigate phase changes for its use as a propellant. Also documented is the hardware selected and the integration into the MR SAT spacecraft, along with the laboratory testing

Carl Reiner Seubert; Dr. Kelly; O. Homan

2007-01-01T23:59:59.000Z

77

Propulsion Materials R&D | Clean Energy | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Propulsion Materials Propulsion Materials SHARE Propulsion Materials Improve Powertrains Oak Ridge National Laboratory's transportation research and development in the area of Propulsion Materials is designed to identify and develop advanced materials and processes that improve powertrain system efficiency and reduce emissions. Cutting-edge materials research is crucial to enabling new vehicle technologies that are reliable, fuel efficient, and clean. ORNL researchers, in close collaboration with US industry, are focusing on materials for advanced engines, hybrid and electric drive systems, and vehicle exhaust systems. These materials promote a variety of performance benefits, including lightweighting, higher temperature capabilities, emissions reduction, thermal management, and corrosion mitigation.

78

NREL: Vehicle Systems Analysis - Vehicle Systems Analysis Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Systems Analysis Publications The Vehicle Systems Analysis Team at the National Renewable Energy Laboratory publishes technical reports, conference papers, and presentations about...

79

Middleware for Cooperative Vehicle-Infrastructure Systems  

E-Print Network (OSTI)

Cooperative vehicle-infrastructure systems." COM Safety:of Transportation. Vehicle-Infrastructure Integration (VII).for Cooperative Vehicle-Infrastructure Systems Christian

Manasseh, Christian; Sengupta, Raja

2008-01-01T23:59:59.000Z

80

Electric Vehicles: Performances, Life Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

P. Davis I. (1988) R. ETX-II propulsion system industry..,sulfur batteryfor the ETX-II propuLsion system. Proca. ,9thsulphur battery, in the ETX-II test vehicle. The ETX-II test

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Full fuel-cycle comparison of forklift propulsion systems.  

DOE Green Energy (OSTI)

Hydrogen has received considerable attention as an alternative to fossil fuels. The U.S. Department of Energy (DOE) investigates the technical and economic feasibility of promising new technologies, such as hydrogen fuel cells. A recent report for DOE identified three near-term markets for fuel cells: (1) Emergency power for state and local emergency response agencies, (2) Forklifts in warehousing and distribution centers, and (3) Airport ground support equipment markets. This report examines forklift propulsion systems and addresses the potential energy and environmental implications of substituting fuel-cell propulsion for existing technologies based on batteries and fossil fuels. Industry data and the Argonne Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model are used to estimate full fuel-cycle emissions and use of primary energy sources, back to the primary feedstocks for fuel production. Also considered are other environmental concerns at work locations. The benefits derived from using fuel-cell propulsion are determined by the sources of electricity and hydrogen. In particular, fuel-cell forklifts using hydrogen made from the reforming of natural gas had lower impacts than those using hydrogen from electrolysis.

Gaines, L. L.; Elgowainy, A.; Wang, M. Q.; Energy Systems

2008-11-05T23:59:59.000Z

82

High-performance batteries for electric-vehicle propulsion and stationary energy storage. Progress report, October 1977--September 1978  

DOE Green Energy (OSTI)

The research, development, and management activities of the programs at Argonne National Laboratory (ANL) and at industrial subcontractors' laboratories on high-temperature batteries during the period October 1977--September 1978 are reported. These batteries are being developed for electric-vehicle propulsion and for stationary-energy-storage applications. The present cells, which operate at 400 to 500/sup 0/C, are of a vertically oriented, prismatic design with one or more inner positive electrodes of FeS or FeS/sub 2/, facing electrodes of lithium--aluminum alloy, and molten LiCl--KCl electrolyte. During this fiscal year, cell and battery development work continued at ANL, Eagle--Picher Industries, Inc., the Energy Systems Group of Rockwell International, and Gould Inc. Related work was also in progress at the Carborundum Co., General Motors Research Laboratories, and various other organizations. A major event was the initiation of a subcontract with Eagle--Picher Industries to develop, design, and fabricate a 40-kWh battery (Mark IA) for testing in an electric van. Conceptual design studies on a 100-MWh stationary-energy-storage module were conducted as a joint effort between ANL and Rockwell International. A significant technical advance was the development of multiplate cells, which are capable of higher performance than bicells. 89 figures, 57 tables.

Nelson, P.A.; Barney, D.L.; Steunenberg, R.K.

1978-11-01T23:59:59.000Z

83

High-performance batteries for electric-vehicle propulsion and stationary energy storage. Progress report, October 1977--September 1978  

SciTech Connect

The research, development, and management activities of the programs at Argonne National Laboratory (ANL) and at industrial subcontractors' laboratories on high-temperature batteries during the period October 1977--September 1978 are reported. These batteries are being developed for electric-vehicle propulsion and for stationary-energy-storage applications. The present cells, which operate at 400 to 500/sup 0/C, are of a vertically oriented, prismatic design with one or more inner positive electrodes of FeS or FeS/sub 2/, facing electrodes of lithium--aluminum alloy, and molten LiCl--KCl electrolyte. During this fiscal year, cell and battery development work continued at ANL, Eagle--Picher Industries, Inc., the Energy Systems Group of Rockwell International, and Gould Inc. Related work was also in progress at the Carborundum Co., General Motors Research Laboratories, and various other organizations. A major event was the initiation of a subcontract with Eagle--Picher Industries to develop, design, and fabricate a 40-kWh battery (Mark IA) for testing in an electric van. Conceptual design studies on a 100-MWh stationary-energy-storage module were conducted as a joint effort between ANL and Rockwell International. A significant technical advance was the development of multiplate cells, which are capable of higher performance than bicells. 89 figures, 57 tables.

Nelson, P.A.; Barney, D.L.; Steunenberg, R.K.

1978-11-01T23:59:59.000Z

84

Reciprocating Pump Systems for Space Propulsion  

DOE Green Energy (OSTI)

Small propellant pumps can reduce rocket hardware mass, while increasing chamber pressure to improve specific impulse. The maneuvering requirements for planetary ascent require an emphasis on mass, while those of orbiting spacecraft indicate that I{sub SP} should be prioritized during pump system development. Experimental efforts include initial testing with prototype lightweight components while raising pump efficiency to improve system I{sub SP}.

Whitehead, J C

2004-06-10T23:59:59.000Z

85

A Computational Magnetohydrodynamic Model of a Gasdynamic Fusion Space Propulsion System.  

E-Print Network (OSTI)

??This work advances the gasdynamic mirror (GDM) fusion space propulsion system concept by testing the potential of an advanced aneutronic fusion fuel combination of proton?11boron (more)

Ohlandt, Chad J. R.

2011-01-01T23:59:59.000Z

86

DOE Scientist Earns Chairman's Award from Propulsion and Power Systems Alliance  

Energy.gov (U.S. Department of Energy (DOE))

A researcher at the Office of Fossil Energy's National Energy Technology Laboratory has been presented with the Chairman's Award by the Propulsion and Power Systems Alliance.

87

WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

VEHICLE TECHNOLOGIES OFFICE VEHICLE TECHNOLOGIES OFFICE WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials February 2013 FINAL REPORT This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise,

88

Use of non-petroleum fuels to reduce military energy vulnerabilities: self-sufficient bases and new weapon propulsion systems  

DOE Green Energy (OSTI)

The US fossil synfuels program may not have significant impact on domestic fuel supplies until near the year 2000, resulting in a continuing mobility fuels vulnerability for the US military until then. But there are other mobility fuel options for both propulsion systems and stationary base-energy sources, for which the base technology is commercially available or at least demonstrated. For example, for surface propulsion systems, hydrogen-fuel-cell/battery-electric hybrids may be considered; for weapons systems these may offer some new flexibilities, standardization possibilities, and multiple military-controlled fuel-supply options. Hydrogen-fueled aircraft may provide interesting longer-term possibilities in terms of military energy self-sufficiency and multiple supply options, as well as performance specifications. These scenarios will be discussed, along with possibilities for demonstrations in the MX-system ground vehicles.

Freiwald, D.A.

1980-01-01T23:59:59.000Z

89

ADVANCED RADIOISOTOPE HEAT SOURCE AND PROPULSION SYSTEMS FOR PLANETARY EXPLORATION  

Science Conference Proceedings (OSTI)

The exploration of planetary surfaces and atmospheres may be enhanced by increasing the range and mobility of a science platform. Fundamentally, power production and availability of resources are limiting factors that must be considered for all science and exploration missions. A novel power and propulsion system is considered and discussed with reference to a long-range Mars surface exploration mission with in-situ resource utilization. Significance to applications such as sample return missions is also considered. Key material selections for radioisotope encapsulation techniques are presented.

R. C. O'Brien; S. D. Howe; J. E. Werner

2010-09-01T23:59:59.000Z

90

Research on simulation of ship electric propulsion system with flywheel energy storage system  

Science Conference Proceedings (OSTI)

Flywheel energy storage has been widely used to improve the ground electric power quality. This paper designed a flywheel energy storage device to improve ship electric propulsion system power grid quality. The practical mathematical models of flywheel ...

Chunling Xie; Conghui Zhang; Jen-Yuan James Chang

2011-06-01T23:59:59.000Z

91

Simplest AB-Thermonuclear Space Propulsion and Electric Generator  

E-Print Network (OSTI)

The author applies, develops and researches mini-sized Micro- AB Thermonuclear Reactors for space propulsion and space power systems. These small engines directly convert the high speed charged particles produced in the thermonuclear reactor into vehicle thrust or vehicle electricity with maximum efficiency. The simplest AB-thermonuclear propulsion offered allows spaceships to reach speeds of 20,000 50,000 km/s (1/6 of light speed) for fuel ratio 0.1 and produces a huge amount of useful electric energy. Offered propulsion system permits flight to any planet of our Solar system in short time and to the nearest non-Sun stars by E-being or intellectual robots during a single human life period. Key words: AB-propulsion, thermonuclear propulsion, space propulsion, thermonuclear power system.

Bolonkin, A

2007-01-01T23:59:59.000Z

92

Simplest AB-Thermonuclear Space Propulsion and Electric Generator  

E-Print Network (OSTI)

The author applies, develops and researches mini-sized Micro- AB Thermonuclear Reactors for space propulsion and space power systems. These small engines directly convert the high speed charged particles produced in the thermonuclear reactor into vehicle thrust or vehicle electricity with maximum efficiency. The simplest AB-thermonuclear propulsion offered allows spaceships to reach speeds of 20,000 50,000 km/s (1/6 of light speed) for fuel ratio 0.1 and produces a huge amount of useful electric energy. Offered propulsion system permits flight to any planet of our Solar system in short time and to the nearest non-Sun stars by E-being or intellectual robots during a single human life period. Key words: AB-propulsion, thermonuclear propulsion, space propulsion, thermonuclear power system.

Alexander Bolonkin

2007-01-19T23:59:59.000Z

93

Technology survey and performance scaling for the design of high power nuclear electric power and propulsion systems  

E-Print Network (OSTI)

High power nuclear electric propulsion systems have the capability to enable many next-generation space exploration applications. To date, use of electric primary propulsion in flight systems has been limited to low-power, ...

White, Daniel B., Jr

2011-01-01T23:59:59.000Z

94

Full Fuel-Cycle Comparison of Forklift Propulsion Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Full Fuel-Cycle Comparison Full Fuel-Cycle Comparison of Forklift Propulsion Systems ANL/ESD/08-3 Energy Systems Division Availability of This Report This report is available, at no cost, at http://www.osti.gov/bridge. It is also available on paper to the U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone (865) 576-8401 fax (865) 576-5728 reports@adonis.osti.gov Disclaimer This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor UChicago Argonne, LLC, nor any of their employees or officers, makes any warranty, express

95

Full Fuel-Cycle Comparison of Forklift Propulsion Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

3 3 Full Fuel-Cycle Comparison of Forklift Propulsion Systems Energy Systems Division About Argonne National Laboratory Argonne is a U.S. Department of Energy laboratory managed by UChicago Argonne, LLC under contract DE-AC02-06CH11357. The Laboratory's main facility is outside Chicago, at 9700 South Cass Avenue, Argonne, Illinois 60439. For information about Argonne, see www.anl.gov. Availability of This Report This report is available, at no cost, at http://www.osti.gov/bridge. It is also available on paper to the U.S. Department of Energy and its contractors, for a processing fee, from: U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge, TN 37831-0062 phone (865) 576-8401

96

Electric Vehicles: Performance, Life-Cycle Costs, Emissions, and Recharging Requirements  

E-Print Network (OSTI)

P. Davis I. (1988) R. ETX-II propulsion system industry..,sulfur batteryfor the ETX-II propuLsion system. Proca. ,9thsulphur battery, in the ETX-II test vehicle. The ETX-II test

DeLuchi, Mark A.; Wang, Quanlu; Sperling, Daniel

1989-01-01T23:59:59.000Z

97

Design Methodology of a Hybrid Propulsion Driven Electric Powered Miniature Tailsitter Unmanned Aerial Vehicle  

Science Conference Proceedings (OSTI)

Contrary to the manned tailsitter aircraft concepts, which have been shelved and forgotten after mid 1960's, the unmanned versions of these concepts have become popular. Since, tailsitter type UAVs combine both vertical takeoff and landing (VTOL) operation ... Keywords: Electric propulsion, Tailsitter, UAV, VTOL

Mirac Aksugur; Gokhan Inalhan

2010-01-01T23:59:59.000Z

98

Hybrid and electric advanced vehicle systems (heavy) simulation. Final report  

Science Conference Proceedings (OSTI)

A computer program to simulate hybrid and electric advanced vehicle systems (HEAVY) is described. It is intended for use early in the design process: concept evaluation, alternative comparison, preliminary design, control and management strategy development, component sizing, and sensitivity studies. It allows the designer to quickly, conveniently, and economically predict the performance of a proposed drive train. The user defines the system to be simulated using a library of predefined component models that may be connected to represent a wide variety of propulsion systems. The development of three models are discussed as examples.

Hammond, R.A.; McGehee, R.K.

1981-11-01T23:59:59.000Z

99

NREL: Vehicle Systems Analysis - Related Links  

NLE Websites -- All DOE Office Websites (Extended Search)

information related to NREL's vehicle systems analysis capabilities and R&D activities, including: Models and tools National laboratories Models and Tools NREL's vehicle system...

100

Nuclear Electric Propulsion: A Better, Safer, Cheaper Transportation System for Human Exploration of Mars  

Science Conference Proceedings (OSTI)

NASA has completed a preliminary mission and systems study of nuclear electric propulsion (NEP) systems for split?sprint human exploration and related robotic cargo missions to Mars. This paper describes the study

John S. Clark; Jeffrey A. George; Leon P. Gefert; Michael P. Doherty; Robert J. Sefcik

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

An object-oriented framework for distributed computational simulation of aerospace propulsion systems  

Science Conference Proceedings (OSTI)

Designing and developing new aerospace propulsion systems is time-consuming and expensive. Computational simulation is a promising means for alleviating this cost, but requires a flexible software simulation system capable of integrating advanced multidisciplinary ...

John A. Reed; Abdollah A. Afjeh

1998-04-01T23:59:59.000Z

102

Design and development of an automotive propulsion system utilizing a Rankine cycle engine (water based fluid). Final report  

DOE Green Energy (OSTI)

Under EPA and ERDA sponsorship, SES successfully designed, fabricated and tested the first federally sponsored steam powered automobile. The automobile - referred to as the simulator - is a 1975 Dodge Monaco standard size passenger car with the SES preprototype Rankine cycle automotive propulsion system mounted in the engine compartment. In the latter half of 1975, the simulator successfully underwent test operations at the facilities of SES in Watertown, Massachusetts and demonstrated emission levels below those of the stringent federally established automotive requirements originally set for implementation by 1976. The demonstration was accomplished during testing over the Federal Driving Cycle on a Clayton chassis dynamometer. The design and performance of the vehicle are described.

Demler, R.L.

1977-09-01T23:59:59.000Z

103

Load calculation and system evaluation for electric vehicle climate control  

DOE Green Energy (OSTI)

This paper presents an analysis of the applicability of alternative systems for electric vehicle (EV) heating and air conditioning (HVAC). The paper consists of two parts. The first part is a cooling and heating load calculation for electric vehicles. The second part is an evaluation of several systems that can provide the desired cooling and heating in EVs. These systems are ranked according to their overall weight The overall weight is calculated by adding the system weight and the weight of the battery necessary to provide energy for system operation. The system with the minimum overall weight is considered to be the best, because minimum vehicle weight decreases the energy required for propulsion, and therefore increases the vehicle range. Three systems are considered as the best choices for EV HVAC. These are, vapor compression, ice storage and adsorption systems. These systems are evaluated, including calculations of system weight, system volume, and COP. The paper also includes a calculation on how the battery energy storage capacity affects the overall system weights and the selection of the optimum system. The results indicate that, at the conditions analyzed in this paper, an ice storage system has the minimum weight of all the systems considered. Vapor compression air conditioners become the system with the minimum weight for battery storage capacities above 230 kJ/kg.

Aceves, S.M.; Comfort, W.J. III

1994-09-12T23:59:59.000Z

104

Well-to-wheel energy use and greenhouse gas emissions of advanced fuel/vehicle systems North American analysis.  

DOE Green Energy (OSTI)

There are differing, yet strongly held views among the various ''stakeholders'' in the advanced fuel/propulsion system debate. In order for the introduction of advanced technology vehicles and their associated fuels to be successful, it seems clear that four important stakeholders must view their introduction as a ''win'': Society, Automobile manufacturers and their key suppliers, Fuel providers and their key suppliers, and Auto and energy company customers. If all four of these stakeholders, from their own perspectives, are not positive regarding the need for and value of these advanced fuels/vehicles, the vehicle introductions will fail. This study was conducted to help inform public and private decision makers regarding the impact of the introduction of such advanced fuel/propulsion system pathways from a societal point of view. The study estimates two key performance criteria of advanced fuel/propulsion systems on a total system basis, that is, ''well'' (production source of energy) to ''wheel'' (vehicle). These criteria are energy use and greenhouse gas emissions per unit of distance traveled. The study focuses on the U.S. light-duty vehicle market in 2005 and beyond, when it is expected that advanced fuels and propulsion systems could begin to be incorporated in a significant percentage of new vehicles. Given the current consumer demand for light trucks, the benchmark vehicle considered in this study is the Chevrolet Silverado full-size pickup.

Wang, M.

2001-04-18T23:59:59.000Z

105

Shared-Use Vehicle Systems  

E-Print Network (OSTI)

Small, Battery-Powered Electric Cars as a Component ofelectric, hybrid-electric, natural gas) cars make up theelectric vehicles and shared-use systems, particularly commuter station cars (

Shaheen, Susan

2004-01-01T23:59:59.000Z

106

Assessment of propfan propulsion systems for reduced environmental impact  

E-Print Network (OSTI)

Current aircraft engine designs tend towards higher bypass ratio, low-speed fan designs for improved fuel burn, reduced emissions and noise. Alternative propulsion concepts include counter-rotating propfans (CRPs) which ...

Peters, Andreas, S.M. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

107

Thermal-hydraulics Analysis of a Radioisotope-powered Mars Hopper Propulsion System  

SciTech Connect

Thermal-hydraulics analyses results produced using a combined suite of computational design and analysis codes are presented for the preliminary design of a concept Radioisotope Thermal Rocket (RTR) propulsion system. Modeling of the transient heating and steady state temperatures of the system is presented. Simulation results for propellant blow down during impulsive operation are also presented. The results from this study validate the feasibility of a practical thermally capacitive RTR propulsion system.

Robert C. O'Brien; Andrew C. Klein; William T. Taitano; Justice Gibson; Brian Myers; Steven D. Howe

2011-02-01T23:59:59.000Z

108

Radioisotope electric propulsion of sciencecraft to the outer solar system and near-interstellar space  

Science Conference Proceedings (OSTI)

Recent results are presented in the study of radioisotope electric propulsion as a near-term technology for sending small robotic sciencecraft to the outer Solar System and near-interstellar space. Radioisotope electric propulsion (REP) systems are low-thrust, ion propulsion units based on radioisotope electric generators and ion thrusters. Powerplant specific masses are expected to be in the range of 100 to 200 kg/kW of thrust power. Planetary rendezvous missions to Pluto, fast missions to the heliopause (100 AU) with the capability to decelerate an orbiter for an extended science program and prestellar missions to the first gravitational lens focus of the Sun (550 AU) are investigated.

Noble, R.J.

1998-08-01T23:59:59.000Z

109

Performance, Charging, and Second-use Considerations for Lithium Batteries for Plug-in Electric Vehicles  

E-Print Network (OSTI)

Chemistries for Plug-in Hybrid Vehicles, EVS-24, Stavanger,ion batteries in the Hybrid Vehicle Propulsion System Lab atIn the case of plug-in hybrid vehicles, there is much design

Burke, Andrew

2009-01-01T23:59:59.000Z

110

Double row loop-coil configuration for high-speed electrodynamic maglev suspension, guidance, propulsion and guideway directional switching  

DOE Green Energy (OSTI)

A stabilization and propulsion system comprising a series of loop-coils arranged in parallel rows wherein two rows form a magnetic rail. Levitation and lateral stability is provided when the induced field in the magnetic rails interacts with the superconducting magnets (SCM) mounted on the magnetic levitation vehicle. A multiphase propulsion system interconnects specific coils in a given magnetic rail and interacts with the SCM to produce a propulsion force to the vehicle.

He, J.; Rote, D.M.

1994-12-31T23:59:59.000Z

111

Advanced Propulsion Concepts at the Jet Propulsion Laboratory  

E-Print Network (OSTI)

Current interest in advanced propulsion within NASA and research activities in advanced propulsion concepts at the Jet Propulsion Laboratory are reviewed. The include high power plasma thrusters such as propulsion systems, in-situ propellant utilization techniques, fusion propulsion systems and methods of using antimatter, offer the potential for either significantly enhancing space transportation capability as compared with that of traditional chemical propulsion, or enabling ambitious new missions.

Stephanie D. Leifer; Robert H. Frisbee; John R. Brophy

1997-01-01T23:59:59.000Z

112

Advanced Fusion Reactors for Space Propulsion and Power Systems  

SciTech Connect

In recent years the methodology proposed for conversion of light elements into energy via fusion has made steady progress. Scientific studies and engineering efforts in advanced fusion systems designs have introduced some new concepts with unique aspects including consideration of Aneutronic fuels. The plant parameters for harnessing aneutronic fusion appear more exigent than those required for the conventional fusion fuel cycle. However aneutronic fusion propulsion plants for Space deployment will ultimately offer the possibility of enhanced performance from nuclear gain as compared to existing ionic engines as well as providing a clean solution to Planetary Protection considerations and requirements. Proton triggered 11Boron fuel (p- 11B) will produce abundant ion kinetic energy for In-Space vectored thrust. Thus energetic alpha particles' exhaust momentum can be used directly to produce high Isp thrust and also offer possibility of power conversion into electricity. p-11B is an advanced fusion plant fuel with well understood reaction kinematics but will require some new conceptual thinking as to the most effective implementation.

Chapman, John J.

2011-06-15T23:59:59.000Z

113

Research and development of advanced nickel-iron batteries for electric vehicle propulsion. Annual report, February 1990--January 1991  

DOE Green Energy (OSTI)

The purpose of this program has been to develop and demonstrate an advanced nickel-iron battery suitable for use in electric vehicles. During the course of this contract various steps and modification have been taken to improve Nickel-Iron battery performance while reducing cost. Improvement of the nickel electrode through slurry formulations and substrate changes, as seen with the fiber electrode, were investigated. Processing parameters for impregnation and formation were also manipulated to improve efficiency. Impregnation saw the change of anode type from platinized titanium to the consumable nickel anode. Formation changes were also made allowing for doubled processing capabilities of positive electrodes, a savings in both time and money. A final design change involved the evolution of the NIF-200 from the NIF-220. This change permitted the use of 1.2 mm iron electrodes and maintained the necessary performance characteristics for electric vehicle propulsion. Emphasis on a pilot plant became the main focus during the late 1989--90 period. The pilot plant facility would be a culmination of the program providing the best product at the lowest price.

Not Available

1991-12-31T23:59:59.000Z

114

Biomimetic oscillating foil propulsion to enhance underwater vehicle agility and maneuverability  

E-Print Network (OSTI)

Inspired by the swimming abilities of marine animals, this thesis presents "Finnegan the RoboTurtle", an autonomous underwater vehicle (AUV) powered entirely by four flapping foils. Biomimetic actuation is shown to produce ...

Licht, Stephen Carl

2008-01-01T23:59:59.000Z

115

NREL: Vehicle Systems Analysis - Plug-In Hybrid Electric Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

Plug-In Hybrid Electric Vehicles Plug-In Hybrid Electric Vehicles NREL's vehicle systems analysts work to advance the technology of plug-in hybrid electric vehicles (PHEVs), also known as grid-connected or grid-charged hybrids. Technology Targets and Metrics Analysis We use our Technical Targets Tool to determine pathways for maximizing the potential national impact of plug-in hybrid electric vehicles. This assessment includes consideration of how consumers will value the new vehicle technology based on attributes such as: Acceleration Fuel economy and consumption Cargo capacity Cost. We use the resulting competitiveness index to predict the vehicle's market penetration rate. Then, we can create a total national benefits picture after adding in other factors such as: Existing fleet turnover

116

Ultracapacitors for Electric and Hybrid Vehicles - Performance Requirements, Status of the Technology, and R&D Needs  

E-Print Network (OSTI)

Pulse Power Devices in Electric Vehicle Propulsion Systems,the Tenth International Electric Vehicle Symposium (EVS-10),4. Burke, A.F. , Hybrid/Electric Vehicle Design Options and

Burke, Andrew F

1995-01-01T23:59:59.000Z

117

NREL: Hydrogen and Fuel Cells Research - Fuel Cell Electric Vehicle...  

NLE Websites -- All DOE Office Websites (Extended Search)

the cost and increasing the performance of fuel cell propulsion systems, and most major vehicle manufacturers are geared to launch fuel cell electric vehicles in the U.S. market...

118

Develop nickel--zinc battery suitable for electric vehicle propulsion. Task A: design and cost study  

DOE Green Energy (OSTI)

A three-month design and cost study for the use of nickel--zinc batteries in electric vehicles is presented. Battery configuration is analyzed, and expected performance is set forth. Current development problems concern component materials and capacity decline on cycling, electrolyte maintenance, and thermal characteristics. The manufacturing process is outlined, and estimates are made for cost, materials requirements, capital needs, etc. 61 figures, 24 tables. (RWR)

None

1977-02-15T23:59:59.000Z

119

Innovation Approaches to Development and Ground Testing of Advanced Bimodal Space Power and Propulsion Systems  

DOE Green Energy (OSTI)

The last major development effort for nuclear power and propulsion systems ended in 1993. Currently, there is not an initiative at either the National Aeronautical and Space Administration (NASA) or the U.S. Department of Energy (DOE) that requires the development of new nuclear power and propulsion systems. Studies continue to show nuclear technology as a strong technical candidate to lead the way toward human exploration of adjacent planets or provide power for deep space missions, particularly a 15,000 lbf bimodal nuclear system with 115 kW power capability. The development of nuclear technology for space applications would require technology development in some areas and a major flight qualification program. The last major ground test facility considered for nuclear propulsion qualification was the U.S. Air Force/DOE Space Nuclear Thermal Propulsion Project. Seven years have passed since that effort, and the questions remain the same, how to qualify nuclear power and propulsion systems for future space flight. It can be reasonably assumed that much of the nuclear testing required to qualify a nuclear system for space application will be performed at DOE facilities as demonstrated by the Nuclear Rocket Engine Reactor Experiment (NERVA) and Space Nuclear Thermal Propulsion (SNTP) programs. The nuclear infrastructure to support testing in this country is aging and getting smaller, though facilities still exist to support many of the technology development needs. By renewing efforts, an innovative approach to qualifying these systems through the use of existing facilities either in the U.S. (DOE's Advance Test Reactor, High Flux Irradiation Facility and the Contained Test Facility) or overseas should be possible.

Hill, T.; Noble, C.; Martinell, J. (INEEL); Borowski, S. (NASA Glenn Research Center)

2000-07-14T23:59:59.000Z

120

A refuelable zinc/air battery for fleet electric vehicle propulsion  

SciTech Connect

We report the development and on-vehicle testing of an engineering prototype zinc/air battery. The battery is refueled by periodic exchange of spent electrolyte for zinc particles entrained in fresh electrolyte. The technology is intended to provide a capability for nearly continuous vehicle operation, using the fleet s home base for 10 minute refuelings and zinc recycling instead of commercial infrastructure. In the battery, the zinc fuel particles are stored in hoppers, from which they are gravity fed into individual cells and completely consumed during discharge. A six-celled (7V) engineering prototype battery was combined with a 6 V lead/acid battery to form a parallel hybrid unit, which was tested in series with the 216 V battery of an electric shuttle bus over a 75 mile circuit. The battery has an energy density of 140 Wh/kg and a mass density of 1.5 kg/L. Cost, energy efficiency, and alternative hybrid configurations are discussed.

Cooper, J.F.; Fleming, D.; Hargrove, D.; Koopman, R.; Peterman, K.

1995-04-20T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

High-performance batteries for electric-vehicle propulsion and stationary energy storage. Progress report, October 1978-March 1979. [Ca/sulfides  

DOE Green Energy (OSTI)

This report covers the research, development, and management activities of the programs at Argonne National Laboratory (ANL) and at subcontractors' laboratories on high-temperature batteries during the period October 1978 to March 1979. These batteries are being developed for electric-vehicle propulsion and for stationary energy-storage applications. The present cells, which operate at 400 to 500/sup 0/C, are of a vertically oriented, prismatic design with one or more inner positive electrodes of FeS or FeS/sub 2/, facing electrodes of lithium-aluminum alloy, and molten LiCl-KCl electrolyte. During this six-month period, cell and battery development work continued at ANL, Eagle-Picher Industries, Inc., Gould Inc., and the Energy Systems Group of Rockwell International. Fabrication of a 40-kWh battery by Eagle-Picher for testing in an electric van is nearing completion. Cost and design studies for a Mark II electric-vehicle battery, which will have somewhat higher performance and use potentially low-cost materials and fabrication methods, were conducted by all three subcontractors, and contracts are being negotiated for development of Mark II batteries. Conceptual design studies continued at Rockwell International on a 100 MWh stationary energy-storage module. The present plan is to construct a module based on these designs for testing at the BEST (Battery Energy Storage Test) Facility. Work was also in progress at the Carborundum Co., General Motors Research Laboratories, and various other organizations on developing materials and components for cells. 38 figures, 28 tables.

None

1979-05-01T23:59:59.000Z

122

Performance analysis of the combined EDS maglev propulsion, levitation, and guidance system  

DOE Green Energy (OSTI)

An analysis of the Japanese maglev system which uses only one set of coils in the guideway for combined levitation, propulsion, and guidance functions is presented in this paper. This preliminary study, using the dynamic circuit approach, indicates that the system is very promising.

He, J.L.; Coffey, H.T.; Rote, D.M.

1993-10-01T23:59:59.000Z

123

HybriDrive Propulsion System Cleaner, smarter power for transit  

E-Print Network (OSTI)

0.99R-8 Crude Oil D 26.0% Diesel Vehicle Liquid Fuel Transportation and Storage 0.99R-11 Emissions source for electrolysis is "clean" Zero Emission. · 30% US electricity is "clean": Nuclear, Hydro, Wind

124

Hybrid energy storage system integration for vehicles  

Science Conference Proceedings (OSTI)

Energy consumption and the associated environmental impact are a pressing challenge faced by the transportation sector. Emerging electric-drive vehicles have shown promises for substantial reductions in petroleum use and vehicle emissions. Their success, ... Keywords: analysis, electric-drive vehicles, energy storage systems

Jia Wang; Kun Li; Qin Lv; Hai Zhou; Li Shang

2010-08-01T23:59:59.000Z

125

Fourth international symposium on automotive propulsion systems. Volume I. [Eighteen papers  

DOE Green Energy (OSTI)

A pre-conference draft is given (in five volumes) of the proceedings of the 4th International Symposium on Automotive Propulsion Systems, held April 18-22, 1977, in Washington, D.C. Volume I contains eighteen papers; a separate abstract was prepared for each for ERDA Energy Research Abstracts (ERA).

Not Available

1977-01-01T23:59:59.000Z

126

Direct-hydrogen-fueled proton-exchange-membrane fuel cell system for transportation applications: Conceptual vehicle design report pure fuel cell powertrain vehicle  

SciTech Connect

In partial fulfillment of the Department of Energy (DOE) Contract No. DE-AC02-94CE50389, {open_quotes}Direct-Hydrogen-Fueled Proton-Exchange-Membrane (PEM) Fuel Cell for Transportation Applications{close_quotes}, this preliminary report addresses the conceptual design and packaging of a fuel cell-only powered vehicle. Three classes of vehicles are considered in this design and packaging exercise, the Aspire representing the small vehicle class, the Taurus or Aluminum Intensive Vehicle (AIV) Sable representing the mid-size vehicle and the E-150 Econoline representing the van-size class. A fuel cell system spreadsheet model and Ford`s Corporate Vehicle Simulation Program (CVSP) were utilized to determine the size and the weight of the fuel cell required to power a particular size vehicle. The fuel cell power system must meet the required performance criteria for each vehicle. In this vehicle design and packaging exercise, the following assumptions were made: fuel cell power system density of 0.33 kW/kg and 0.33 kg/liter, platinum catalyst loading less than or equal to 0.25 mg/cm{sup 2} total and hydrogen tanks containing gaseous hydrogen under 340 atm (5000 psia) pressure. The fuel cell power system includes gas conditioning, thermal management, humidity control, and blowers or compressors, where appropriate. This conceptual design of a fuel cell-only powered vehicle will help in the determination of the propulsion system requirements for a vehicle powered by a PEMFC engine in lieu of the internal combustion (IC) engine. Only basic performance level requirements are considered for the three classes of vehicles in this report. Each vehicle will contain one or more hydrogen storage tanks and hydrogen fuel for 560 km (350 mi) driving range. Under these circumstances, the packaging of a fuel cell-only powered vehicle is increasingly difficult as the vehicle size diminishes.

Oei, D.; Kinnelly, A.; Sims, R.; Sulek, M.; Wernette, D.

1997-02-01T23:59:59.000Z

127

Research, development and demonstration of nickel-zinc batteries for electric vehicle propulsion. Annual report, 1978  

DOE Green Energy (OSTI)

The work carried out under the Yardney Contract with ANL for R, D and D on nickel zinc batteries over the past year was directed in three major areas: (1) elucidating the failure modes of the nickel-zinc battery system; (2) improving performance of the system; and (3) effecting a cost reduction program. Progress on the three areas is reported. (TFD)

Not Available

1979-10-01T23:59:59.000Z

128

Vehicle Technologies Office: Annual Progress Reports  

NLE Websites -- All DOE Office Websites (Extended Search)

Annual Progress Reports Annual Progress Reports 2013 DOE Vehicle Technologies Office Annual Merit Review 2012 Advanced Combustion Engine Research and Development Advanced Power Electronics and Electric Motors DOE Vehicle Technologies Office Annual Merit Review Energy Storage Research and Development Fuel & Lubricant Technologies Lightweight Materials Propulsion Materials Vehicle and Systems Simulation and Testing 2011 Advanced Combustion Engine Research and Development Advanced Power Electronics and Electric Motors DOE Vehicle Technologies Office Annual Merit Review Energy Storage Research and Development Lightweighting Materials Propulsion Materials Vehicle and Systems Simulation and Testing 2010 Advanced Combustion Engine Research and Development Advanced Power Electronics and Electric Motors

129

Advanced Vehicles Group: Center for Transportation Technologies and Systems  

DOE Green Energy (OSTI)

Describes R&D in advanced vehicle systems and components (e.g., batteries) by NREL's Advanced Vehicles Group.

Not Available

2008-08-01T23:59:59.000Z

130

Wireless Charging System for Electric Vehicles  

OEM Electric Vehicles OEM EV Manufacturers Plug-in; internal technology development Street / highway in-motion charging systems Federal / State / Local

131

Research, development and demonstration of nickel-zinc batteries for electric vehicle propulsion. Annual report, 1979  

DOE Green Energy (OSTI)

Progress achieved under ANL Contract No. 31-109-38-4248 from 16 August 1978 to 16 August 1979 is reported. The first segment of the overall program, component development, consists of four basic tasks proceeding in parallel: nickel electrode development, zinc electrode development, separator development, and sealed cell development. Each of these tasks is reported herein on a self-contained basis. System engineering is the second major subdivision of the effort. It includes the design and testing of all cells, the investigation of charge control devices and techniques, and the complete analysis of all cells for failure modes. It also encompasses the accelerated testing of 20-Ah cells. To date, large numbers of these cells (incorporating separator variations, active material additives and internal design variations) have been subjected to this type of testing. 48 figures, 47 tables. (RWR)

Not Available

1980-06-01T23:59:59.000Z

132

Beamed Energy Propulsion: Research Status And Needs--Part 1  

SciTech Connect

One promising solution to the operationally responsive space is the application of remote electromagnetic energy to propel a launch vehicle into orbit. With beamed energy propulsion, one can leave the power source stationary on the ground or space, and direct heat propellant on the spacecraft with a beam from a fixed station. This permits the spacecraft to leave its power source at home, saving significant amounts of mass, greatly improving performance. This concept, which removes the mass penalty of carrying the propulsion energy source on board the vehicle, was first proposed by Arthur Kantrowitz in 1972; he invoked an extremely powerful ground based laser. The same year Michael Minovich suggested a conceptually similar 'in-space' laser rocket system utilizing a remote laser power station. In the late 1980's, Air Force Office of Scientific Research (AFOSR) funded continuous, double pulse laser and microwave propulsion while Strategic Defense Initiative Office (SDIO) funded ablative laser rocket propulsion. Currently AFOSR has been funding the concept initiated by Leik Myrabo, repetitively pulsed laser propulsion, which has been universally perceived, arguably, to be the closest for mid-term applications. This 2-part paper examines the investment strategies in beamed energy propulsion and technical challenges to be overcome. Part 1 presents a world-wide review of beamed energy propulsion research, including both laser and microwave arenas.

Birkan, Mitat [Air Force Office of Scientific Research, Arlington, Virginia, 22203 (United States)

2008-04-28T23:59:59.000Z

133

Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle  

NLE Websites -- All DOE Office Websites (Extended Search)

3 Progress Report 3 Progress Report for Heavy Vehicle Propulsion Materials Program to someone by E-mail Share Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle Propulsion Materials Program on Facebook Tweet about Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle Propulsion Materials Program on Twitter Bookmark Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle Propulsion Materials Program on Google Bookmark Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle Propulsion Materials Program on Delicious Rank Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle Propulsion Materials Program on Digg Find More places to share Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle Propulsion Materials Program on

134

Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle  

NLE Websites -- All DOE Office Websites (Extended Search)

4 Progress Report 4 Progress Report for Heavy Vehicle Propulsion Materials Program to someone by E-mail Share Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle Propulsion Materials Program on Facebook Tweet about Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle Propulsion Materials Program on Twitter Bookmark Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle Propulsion Materials Program on Google Bookmark Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle Propulsion Materials Program on Delicious Rank Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle Propulsion Materials Program on Digg Find More places to share Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle Propulsion Materials Program on

135

Heavy Vehicle Propulsion Materials  

DOE Green Energy (OSTI)

The objectives are to Provide Key Enabling Materials Technologies to Increase Energy Efficiency and Reduce Exhaust Emissions. The following goals are listed: Goal 1: By 3rd quarter 2002, complete development of materials enabling the maintenance or improvement of fuel efficiency {ge} 45% of class 7-8 truck engines while meeting the EPA/Justice Department ''Consent Decree'' for emissions reduction. Goal 2: By 4th quarter 2004, complete development of enabling materials for light-duty (class 1-2) diesel truck engines with efficiency over 40%, over a wide range of loads and speeds, while meeting EPA Tier 2 emission regulations. Goal 3: By 4th quarter 2006, complete development of materials solutions to enable heavy-duty diesel engine efficiency of 50% while meeting the emission reduction goals identified in the EPA proposed rule for heavy-duty highway engines.''

Ray Johnson

2000-01-31T23:59:59.000Z

136

Vehicle systems design optimization study  

DOE Green Energy (OSTI)

The optimization of an electric vehicle layout requires a weight distribution in the range of 53/47 to 62/38 in order to assure dynamic handling characteristics comparable to current production internal combustion engine vehicles. It is possible to achieve this goal and also provide passenger and cargo space comparable to a selected current production sub-compact car either in a unique new design or by utilizing the production vehicle as a base. Necessary modification of the base vehicle can be accomplished without major modification of the structure or running gear. As long as batteries are as heavy and require as much space as they currently do, they must be divided into two packages - one at front under the hood and a second at the rear under the cargo area - in order to achieve the desired weight distribution. The weight distribution criteria requires the placement of batteries at the front of the vehicle even when the central tunnel is used for the location of some batteries. The optimum layout has a front motor and front wheel drive. This configuration provides the optimum vehicle dynamic handling characteristics and the maximum passsenger and cargo space for a given size vehicle.

Gilmour, J. L.

1980-04-01T23:59:59.000Z

137

NREL: Learning - Advanced Vehicle Systems and Components  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Vehicle Systems and Components Advanced Vehicle Systems and Components Photo of a man checking out an advanced battery using testing equipment that includes a long metal tube on a table top. NREL's researchers test new batteries developed for hybrid electric vehicles. Credit: Warren Gretz Researchers and engineers at the NREL work closely with those in the automotive industry to develop new technologies, such as advanced batteries, for storing energy in cars, trucks, and buses. They also help to develop and test new technologies for using that energy more efficiently. And they work on finding new, energy-efficient ways to reduce the amount of fuel needed to heat and cool the interiors, or cabins, of vehicles. To help develop these new technologies, NREL's researchers are improving the efficiency of vehicle systems and components like these:

138

Vehicle Technologies Office: Thermal Control and System Integration  

NLE Websites -- All DOE Office Websites (Extended Search)

Thermal Control and System Integration to someone by E-mail Share Vehicle Technologies Office: Thermal Control and System Integration on Facebook Tweet about Vehicle Technologies...

139

A Dynamic Study of an Earth Orbiting Tether Propulsion System.  

E-Print Network (OSTI)

??Commercial expansion beyond Earth orbit demands efficient, low cost and regular access to space that is not given by current launch systems. An alternative to (more)

Stasko, Stephen Edward

2007-01-01T23:59:59.000Z

140

The ANL electric vehicle battery R D program for DOE-EHP. [ANL (Argonne National Laboratory); EHP (Electric and Hybrid Propulsion Division)  

SciTech Connect

The Electrochemical Technology Program at Argonne National Laboratory (ANL) provides technical and programmatic support to DOE's Electric and Hybrid Propulsion Division (DOE-EHP). The goal of DOE-EHP is to advance promising electric-vehicle (EV) propulsion technologies to levels where industry will continue their commercial development and thereby significantly reduce air pollution and petroleum consumption due to the transportation sector of the economy. In support of this goal, ANL provides research, development, testing/evaluation, post-test analysis, modeling, and project management on advanced battery technologies for DOE-EHP. This report summarizes the battery-related activities undertaken during the period of January 1, 1993 through March 31, 1993. In this report, the objective, background, technical progress, and status are described for each task. The work is organized into the following task areas: 1.0 Project Management; 2.0 Sodium/Metal Chloride R D; 3.0 Microreference Electrodes for Lithium/Polymer Batteries.

1993-06-15T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Performance enhancement using power beaming for electric propulsion earth orbital transporters  

DOE Green Energy (OSTI)

An electric propulsion Earth orbital transport vehicle (EOTV) can effectively deliver large payloads using much less propellant than chemical transfer methods. By using an EOTV instead of a chemical upper stage, either a smaller launch vehicle can be used for the same satellite mass or larger satellite can be deployed using the same launch vehicle. However, the propellant mass savings from using the higher specific impulse of electric propulsion may not be enough to overcome the disadvantage of the added mass and cost of the electric propulsion power source. Power system limitations have been a major factor delaying the acceptance and use of electric propulsion. This paper outlines the power requirements of electric propulsion technology being developed today, including arcjets, magnetoplasmadynamic (MPD) thrusters, and ion engines. Power supply characteristics are discussed for nuclear, solar, and power-beaming systems. Operational characteristics are given for each, as are the impacts of the power supply alternative on the overall craft performance. Because of its modular nature, the power-beaming approach is able to meet the power requirements of all three electric propulsion types. Also, commonality of approach allows different electric propulsion approaches to be powered by a single power supply approach. Power beaming exhibits better flexibility and performance than on-board nuclear or solar power systems.

Dagle, J.E.

1991-08-01T23:59:59.000Z

142

Beamed Energy Propulsion: Research Status And Needs--Part 2  

SciTech Connect

One promising solution to the operationally responsive space is the application of remote electromagnetic energy to propel a launch vehicle into orbit. With beamed energy propulsion, one can leave the power source stationary on the ground or space, and direct heat propellant on the spacecraft with a beam from a fixed station. This permits the spacecraft to leave its power source at home, saving significant amounts of mass, greatly improving performance. This concept, which removes the mass penalty of carrying the propulsion energy source on board the vehicle, was first proposed by Arthur Kantrowitz in 1972; he invoked an extremely powerful ground based laser. The same year Michael Minovich suggested a conceptually similar 'in-space' laser rocket system utilizing a remote laser power station. In the late 1980's, Air Force Office of Scientific Research (AFOSR) funded continuous, double pulse laser and microwave propulsion while Strategic Defense Initiative Office (SDIO) funded ablative laser rocket propulsion. Currently AFOSR has been funding the concept initiated by Leik Myrabo, repetitively pulsed laser propulsion, which has been universally perceived, arguably, to be the closest for mid-term applications. This 2-part paper examines the investment strategies in beamed energy propulsion and technical challenges to be covers Part 2 covers the present research status and needs.

Birkan, Mitat [Air Force Office of Scientific Research, Arlington, Virginia, 22203 (United States)

2008-04-28T23:59:59.000Z

143

Integrated Modular Propulsion and Regenerative Electro-energy Storage System (IMPRESS) for small satellites  

DOE Green Energy (OSTI)

The IMPRESS is a significant advancement in space system technology as it is able to operate alternately as a fuel cell to produce electrical power from stored hydrogen and oxygen and as a water electrolyzer using electrical power to produce hydrogen and oxygen from stored water. The electrolysis of a controllable fraction of stored water can provide high Isp rocket propellants on demand. The heart of the IMPRESS is the Unitized Regenerative Fuel Cell (URFC), which produces power and electrolytically regenerates its reactants using a single stack of reversible cells. This integrated approach has several significant advantages over separate (battery) power and propulsion systems.

Mitlitsky, F. [Lawrence Livermore National Lab., CA (United States); de Groot, W. [Nyma, Inc., Brook Park, OH (United States); Butler, L.; McElroy, J. [United Technologies Corp., Windsor Locks, CT (United States). Hamilton Standard Div.

1996-09-01T23:59:59.000Z

144

NREL: Hydrogen and Fuel Cells Research - Fuel Cell Electric Vehicles...  

NLE Websites -- All DOE Office Websites (Extended Search)

the cost and increasing the performance of fuel cell propulsion systems, and most major vehicle manufacturers are geared to launch FCEVs in the U.S. market between 2015 and 2020....

145

Preliminary assessment of high power, NERVA-class dual-mode space nuclear propulsion and power systems  

Science Conference Proceedings (OSTI)

A preliminary assessment of the technical feasibility and mass competitiveness of a dual-mode nuclear propulsion and power system based on the NERVA rocket engine has been completed. Results indicate that the coupling of the ROVER reactor to a direct Brayton power conversion system can be accomplished through a number of design features. Furthermore, based on previously published and independently calculated component masses, the dual-mode system was found to have the potential to be mass competitive with propulsion/power systems that use separate reactors. The uncertainties of reactor design modification and shielding requirements were identified as important issues requiring future investigation.

Buksa, J.J.; Kirk, W.L.; Cappiello, M.W. (Nuclear Technology and Engineering Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (US))

1991-01-05T23:59:59.000Z

146

DOE Hydrogen Analysis Repository: Advanced Vehicle Simulator (ADVISOR)  

NLE Websites -- All DOE Office Websites (Extended Search)

Advanced Vehicle Simulator (ADVISOR) Advanced Vehicle Simulator (ADVISOR) Project Summary Full Title: Advanced Vehicle Simulator (ADVISOR) Project ID: 108 Principal Investigator: Matthew Thornton Brief Description: ADVISOR is used to simulate and analyze conventional, advanced, light, and heavy vehicles, including hybrid electric and fuel cell vehicles. Keywords: Hybrid electric vehicles (HEV); vehicle characteristics; vehicle performance; fuel consumption Purpose ADVISOR was designed as an analysis tool to assist the DOE in developing and understanding hybrid electric vehicles through the Hybrid Vehice Propulsion Systems contracts with Ford, GM, and DaimlerChrysler. Performer Principal Investigator: Matthew Thornton Organization: National Renewable Energy Laboratory (NREL) Address: 1617 Cole Blvd.

147

Electric vehicle propulsion batteries: design and cost study for nickel/zinc battery manufacture. Task A. [25 kWh, 700 pounds, 245 Ah at 100+ V, 4. 77 ft/sup 3/  

DOE Green Energy (OSTI)

For satisfying the 25-kWh energy requirement necessary for vehicle propulsion, a 700-pound nickel--zinc battery was configured. Containing 64 individual cells, the unit was selected for minimum weight from computed packaging possibilities. Unit volume was projected to be 4.77 cubic feet. Capacity of the cells delivering 100+ volts was set at 245 ampere-hours. Selection was made primarily because of the compatibility with expressed vehicle requirements of a lower-current system. Manufacturing costs were computed for a unit using sintered positive electrodes at $86/kWh, pilot plant rate, and $78/kWh, production plant rate. Based on a lower than anticipated cost differential between sintered and nonsintered positive electrodes and certain other performance differences, the sintered electrode was chosen for the battery design. Capital expenditures for a production rate of 10,000 batteries per year are estimated to be $2,316,500. Capital expenditure for demonstrating production rates in a pilot plant facility is approximately $280,000, with the use of some shared available equipment. 29 figures, 9 tables.

None

1977-01-01T23:59:59.000Z

148

ORNL light-duty vehicles PC system  

Science Conference Proceedings (OSTI)

This data system, designed by the Oak Ridge National Laboratory (ORNL) and funded by the US Department of Energy (DOE), monitors information on every light-duty vehicle (automobiles and light-duty trucks) sold in the United States since model year 1976. The data are specified in two days. One way is on a model basis (i.e, engine and transmission combinations) and includes data on city, highway, and combined fuel economies; engine size; drive-train; fuel type (gasoline or diesel); interior volume; body type; and other vehicle attributes. The other way is on a make basis (e.g., Ford Escort, Oldsmobile 98) and includes data on sales; Environmental Protection Agency (EPA) size class; the sales-weighted fuel economy; sales-weighted interior volume; sales-weighted engine displacement (cid); curb weight; and other attributes. A unique identification number is assigned to a specific vehicle category. This identification number contains information on the manufacturer, the location of the manufacturer (domestic or import), and the sponsorship of the vehicle (domestic or import). Fuel economies, model year sales and various vehicle characteristics for every make of the 164 million light-duty vehicles sold in the US since model year 1976 can be obtained from this data system. 2 figs., 4 tabs.

Hu, P.S.; Patterson, P.D. (Oak Ridge National Lab., TN (USA))

1989-01-01T23:59:59.000Z

149

Vehicle/guideway interaction and ride comfort in maglev systems  

DOE Green Energy (OSTI)

The importance of vehicle/guideway dynamics in maglev systems is discussed. The particular interest associated with modeling vehicle guide-way interactions and explaining response characteristics of maglev systems for a multicar, multiload vehicle traversing on a single- or double-span flexible guideway are considered, with an emphasis on vehicle/guideway coupling effects, comparison of concentrated and distributed loads, and ride comfort. Coupled effects of vehicle/guideway interactions over a wide range of vehicle speeds with various vehicle and guideway parameters are investigated, and appropriate critical vehicle speeds or crossing frequencies are identified.

Cai, Y.; Chen, S.S.; Rote, D.M.; Coffey, H.T.

1993-10-01T23:59:59.000Z

150

Passive Cooling System for a Vehicle  

DOE Patents (OSTI)

A passive cooling system for a vehicle (114) transfers heat from an overheated internal component, for example, an instrument panel (100), to an external portion (116) of the vehicle (114), for example, a side body panel (126). The passive cooling system includes one or more heat pipes (112) having an evaporator section (118) embedded in the overheated internal component and a condenser section (120) at the external portion (116) of the vehicle (114). The evaporator (118) and condenser (120) sections are in fluid communication. The passive cooling system may also include a thermally conductive film (140) for thermally connecting the evaporator sections (118) of the heat pipes (112) to each other and to the instrument panel (100).

Hendricks, T. J.; Thoensen, T.

2005-11-15T23:59:59.000Z

151

Assessment of the status of fuel cell/battery vehicle power systems  

DOE Green Energy (OSTI)

An assessment of the status of the integrated fuel cell/battery power system concept for electric vehicle propulsion is reported. The fuel cell, operating on hydrogen or methanol (indirectly), acts as a very high capacity energy battery for vehicle sustaining operation, while a special power battery provides over-capacity transient power on demand, being recharged by the fuel cell, e.g., during cruising. A focused literature search and a set of industrial and Government contacts were carried out to establish views, outlooks, and general status concerning the concept. It is evident that, although vehicle battery R and D is being actively pursued, little of today's fuel cell work is directed to transportation usage. Only very limited attention has been, and is being, given to the fuel cell/battery power system concept itself. However, judging largely from computer-simulated driving cycle results, the concept can provide needed range capabilities and general operating flexibility to electric vehicles. New transportation applications, conventionally viewed as beyond the capability of electric vehicles, may thereby be practical, e.g., rail, trucks. In view of these potential and important benefits, and the absence of any comprehensive research, development, and demonstration activities which are supportive of the fuel cell/battery system concept, the initiation of an appropriate effort is recommended by the Assessment Team. This general recommendation is supported by applicable findings, observations, and conclusions.

Escher, W.J.D.; Foster, R.W.

1980-02-01T23:59:59.000Z

152

Assessment of the status of fuel cell/battery vehicle power systems  

SciTech Connect

An assessment of the status of the integrated fuel cell/battery power system concept for electric vehicle propulsion is reported. The fuel cell, operating on hydrogen or methanol (indirectly), acts as a very high capacity energy battery for vehicle sustaining operation, while a special power battery provides over-capacity transient power on demand, being recharged by the fuel cell, e.g., during cruising. A focused literature search and a set of industrial and Government contacts were carried out to establish views, outlooks, and general status concerning the concept. It is evident that, although vehicle battery R and D is being actively pursued, little of today's fuel cell work is directed to transportation usage. Only very limited attention has been, and is being, given to the fuel cell/battery power system concept itself. However, judging largely from computer-simulated driving cycle results, the concept can provide needed range capabilities and general operating flexibility to electric vehicles. New transportation applications, conventionally viewed as beyond the capability of electric vehicles, may thereby be practical, e.g., rail, trucks. In view of these potential and important benefits, and the absence of any comprehensive research, development, and demonstration activities which are supportive of the fuel cell/battery system concept, the initiation of an appropriate effort is recommended by the Assessment Team. This general recommendation is supported by applicable findings, observations, and conclusions.

Escher, W.J.D.; Foster, R.W.

1980-02-01T23:59:59.000Z

153

Battery control system for hybrid vehicle and method for controlling a hybrid vehicle battery  

DOE Patents (OSTI)

A battery control system for controlling a state of charge of a hybrid vehicle battery includes a detecting arrangement for determining a vehicle operating state or an intended vehicle operating state and a controller for setting a target state of charge level of the battery based on the vehicle operating state or the intended vehicle operating state. The controller is operable to set a target state of charge level at a first level during a mobile vehicle operating state and at a second level during a stationary vehicle operating state or in anticipation of the vehicle operating in the stationary vehicle operating state. The invention further includes a method for controlling a state of charge of a hybrid vehicle battery.

Bockelmann, Thomas R. (Battle Creek, MI); Beaty, Kevin D. (Kalamazoo, MI); Zou, Zhanijang (Battle Creek, MI); Kang, Xiaosong (Battle Creek, MI)

2009-07-21T23:59:59.000Z

154

Battery testing at Argonne National Laboratory. Electric and hybrid propulsion systems, No. 1  

SciTech Connect

Advanced battery technology evaluations are performed under simulated electric-vehicle operating conditions at the Analysis & Diagnostic Laboratory (ADL) of Argonne National Laboratory. The ADL results provide insight into those factors that limit battery performance and life. The ADL facilities include a test laboratory to conduct battery experimental evaluations under simulated application conditions and a post-test analysis laboratory to determine, in a protected atmosphere if needed, component compositional changes and failure mechanisms. This paper summarizes the performance characterizations and life evaluations conducted during FY 1992 on both single cells and multi-cell modules that encompass six battery technologies [Na/S, Li/FeS, Ni/Metal-Hydride, Ni/Zn, Ni/Cd, Ni/Fe]. These evaluations were performed for the Department of Energy, Office of Transportation Technologies, Electric and Hybrid Propulsion Division, and the Electric Power Research Institute. The ADL provides a common basis for battery performance characterization and lie evaluations with unbiased application of tests and analyses. The results help identify the most promising R&D approaches for overcoming battery limitations, and provide battery users, developers, and program managers with a measure of the progress being made in battery R&D programs, a comparison of battery technologies, and basic data for modeling.

DeLuca, W.H.; Gillie, K.R.; Kulaga, J.E.; Smaga, J.A.; Tummillo, A.F.; Webster, C.E.

1992-12-31T23:59:59.000Z

155

FY2002 Annual Progress Report for the Light Vehicle Propulsioin & Ancillary Subsystems Program  

NLE Websites -- All DOE Office Websites (Extended Search)

& Vehicle Technologies & Vehicle Technologies 1000 Independence Avenue, S.W. Washington, DC 20585-0121 FY 2002 Annual Progress Report for the Light Vehicle Propulsion & Ancillary Subsystems Program Submitted to: U.S. Department of Energy Energy Efficiency and Renewable Energy Office of FreedomCAR & Vehicle Technologies Vehicle Systems Team Robert Kost, Team Leader January 2003 Light Vehicle Propulsion & Ancillary Subsystems Program FY 2002 Annual Progress Report CONTENTS I. INTRODUCTION ............................................................................................... 1 II. TECHNOLOGY REQUIREMENTS DEFINITION....................................... 3 A. Simulation Model Development ..................................................................... 3 1. Improvement, Validation and Application of Advanced

156

Vehicle System Impacts of Fuel Cell System Power Response Capability  

NLE Websites -- All DOE Office Websites (Extended Search)

- 01 - 1959 - 01 - 1959 Vehicle System Impacts of Fuel Cell System Power Response Capability Tony Markel and Keith Wipke National Renewable Energy Laboratory Doug Nelson Virginia Polytechnic University and State Institute Copyright © 2002 Society of Automotive Engineers, Inc. ABSTRACT The impacts of fuel cell system power response capability on optimal hybrid and neat fuel cell vehicle configurations have been explored. Vehicle system optimization was performed with the goal of maximizing fuel economy over a drive cycle. Optimal hybrid vehicle design scenarios were derived for fuel cell systems with 10 to 90% power transient response times of 0, 2, 5, 10, 20, and 40 seconds. Optimal neat fuel cell vehicles where generated for responses times of 0, 2, 5, and 7

157

FY 2004 Annual Progress Report for Heavy Vehicle Systems Optimization  

NLE Websites -- All DOE Office Websites (Extended Search)

HEAVY HEAVY VEHICLE SYSTEMS OPTIMIZATION FreedomCAR and Vehicle Technologies Program U.S. Department of Energy FreedomCAR and Vehicle Technologies Program 1000 Independence Avenue, S.W. Washington, D.C. 20585-0121 FY 2004 Annual Progress Report for Heavy Vehicle Systems Optimization Energy Efficiency and Renewable Energy FreedomCAR and Vehicle Technologies Program Approved by Dr. Sidney Diamond Technology Area Development Specialist February 2005 Heavy Vehicle Systems Optimization Program FY 2004 Annual Report iii Contents Foreword by Dr. Sidney Diamond, FreedomCAR and Vehicle Technologies Program, Energy Efficiency and Renewable Energy, U.S. Department of Energy ................................. 1 I. Aerodynamic Drag Reduction......................................................................................................

158

Battery control system for hybrid vehicle and method for controlling a hybrid vehicle battery  

DOE Patents (OSTI)

A battery control system for hybrid vehicle includes a hybrid powertrain battery, a vehicle accessory battery, and a prime mover driven generator adapted to charge the vehicle accessory battery. A detecting arrangement is configured to monitor the vehicle accessory battery's state of charge. A controller is configured to activate the prime mover to drive the generator and recharge the vehicle accessory battery in response to the vehicle accessory battery's state of charge falling below a first predetermined level, or transfer electrical power from the hybrid powertrain battery to the vehicle accessory battery in response to the vehicle accessory battery's state of charge falling below a second predetermined level. The invention further includes a method for controlling a hybrid vehicle powertrain system.

Bockelmann, Thomas R. (Battle Creek, MI); Hope, Mark E. (Marshall, MI); Zou, Zhanjiang (Battle Creek, MI); Kang, Xiaosong (Battle Creek, MI)

2009-02-10T23:59:59.000Z

159

Advanced Vehicle Testing Activity: Hybrid Electric Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

motor of an electric vehicle. Other hybrids combine a fuel cell with batteries to power electric propulsion motors. Fuel Cell Concept: Fuel passes through an anode, electrolyte,...

160

Recent Development in Hydrogen Peroxide Pumped Propulsion  

DOE Green Energy (OSTI)

This paper describes the development of a lightweight high performance pump-fed divert and attitude control system (DACS). Increased kinetic Kill Vehicles (KV) capabilities (higher .v and acceleration capability) will especially be needed for boost phase engagements where a lower mass KV DACS enables smaller overall interceptors. To increase KV performance while reducing the total DACS dry mass (<10 kg), requires a design approach that more closely emulates those found in large launch vehicles, where pump-fed propulsion enables high propellant-mass-fraction systems. Miniaturized reciprocating pumps, on a scale compatible with KV applications, offer the potential of a lightweight DACS with both high {Delta}v and acceleration capability, while still enabling the rapid pulsing of the divert thrusters needed in the end-game fly-in. Pumped propulsion uses lightweight low-pressure propellant tanks, as the main vehicle structure and eliminates the need for high-pressure gas bottles, reducing mass and increasing the relative propellant load. Prior work used hydrazine and demonstrated a propellant mass fraction >0.8 and a vehicle propulsion dry mass of {approx}3 kg. Our current approach uses the non-toxic propellants 90% hydrogen peroxide and kerosene. This approach enables faster development at lower costs due to the ease of handling. In operational systems these non-toxic propellants can simplify the logistics for manned environments including shipboard applications. This DACS design configuration is expected to achieve sufficient mass flows to support divert thrusters in the 1200 N to 1330 N (270 lbf to 300 lbf) range. The DACS design incorporates two pairs of reciprocating differential piston pumps (oxidizer and fuel), a warm-gas drive system, compatible bi-propellant thrusters, lightweight valves, and lightweight low-pressure propellant tanks. This paper summarizes the current development status and plans.

Ledebuhr, A G; Antelman, D R; Dobie, D W; Gorman, T S; Jones, M S; Kordas, J F; McMahon, D H; Ng, L C; Nielsen, D P; Ormsby, A E; Pittenger, L C; Robinson, J A; Skulina, K M; Taylor, W G; Urone, D A; Wilson, B A

2004-03-22T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Analysis of Advanced Actinide-Fueled Energy Systems for Deep Space Propulsion Applications.  

E-Print Network (OSTI)

??The present study is focused on evaluating higher actinides beyond uranium that are capable of supporting power and propulsion requirements in robotic deep space and (more)

Guy, Troy Lamar

2011-01-01T23:59:59.000Z

162

2007 Heavy Vehicle Systems Optimization Program Annual Report  

NLE Websites -- All DOE Office Websites (Extended Search)

HEAVY VEHiclE SYSTEMS HEAVY VEHiclE SYSTEMS OPTiMiZATiON PROGRAM V EH icl E T E c HNO l OG i ES P ROGRAM Less dependence on foreign oil today, and transition to a petroleum-free, emissions-free vehicle tomorrow. 2 0 0 7 a n n u a l p r o g r e s s r e p o r t U.S. Department of Energy Vehicle Technologies Program 1000 Independence Avenue, S.W. Washington, DC 20585-0121 FY 2007 Annual Progress Report for Heavy Vehicle Systems Optimization Program Submitted to: U.S. Department of Energy Energy Efficiency and Renewable Energy Vehicle Technologies Program Advanced Vehicle Technology Analysis and Evaluation Lee Slezak, Technology Manager Heavy Vehicle Systems Optimization Program FY 2007 Annual Report CONTENTS I. AERODYNAMIC DRAG REDUCTION ........................................................................... 1

163

Water rocket - Electrolysis propulsion and fuel cell power  

DOE Green Energy (OSTI)

Water Rocket is the collective name for an integrated set of technologies that offer new options for spacecraft propulsion, power, energy storage, and structure. Low pressure water stored on the spacecraft is electrolyzed to generate, separate, and pressurize gaseous hydrogen and oxygen. These gases, stored in lightweight pressure tanks, can be burned to generate thrust or recombined to produce electric power. As a rocket propulsion system, Water Rocket provides the highest feasible chemical specific impulse (-400 seconds). Even higher specific impulse propulsion can be achieved by combining Water Rocket with other advanced propulsion technologies, such as arcjet or electric thrusters. With innovative pressure tank technology, Water Rocket's specific energy [Wh/kg] can exceed that of the best foreseeable batteries by an order of magnitude, and the tanks can often serve as vehicle structural elements. For pulsed power applications, Water Rocket propellants can be used to drive very high power density generators, such as MHD devices or detonation-driven pulse generators. A space vehicle using Water Rocket propulsion can be totally inert and non-hazardous during assembly and launch. These features are particularly important for the timely development and flight qualification of new classes of spacecraft, such as microsats, nanosats, and refuelable spacecraft.

Carter, P H; Dittman, M D; Kare, J T; Militsky, F; Myers, B; Weisberg, A H

1999-07-24T23:59:59.000Z

164

LNG delivery system for gas powered vehicles  

Science Conference Proceedings (OSTI)

This patent describes a natural gas delivery system. It comprises a first vehicle mounted tank for storing liquid natural gas and natural gas vapor; a second vehicle mounted tank for storing liquid natural gas and natural gas vapor; a use line connected to the first and second tanks for receiving natural gas from the first and second tanks and delivering natural gas vapor to the use device on the vehicle and means for pressurizing the natural gas in the use line; means for selecting one of the first or second tanks to deliver natural gas to the use line; and means for overriding the selecting means to deliver natural gas vapor to the use line from either of the tanks in response to detecting a pressure rise therein which exceeds a preselected maximum.

Nesser, T.A.; Hedegard, K.W.

1992-07-07T23:59:59.000Z

165

Shared-Use Vehicle Systems  

E-Print Network (OSTI)

Examples of a hybrid carsharing/station car system are theelectric, hybrid-electric, natural gas) cars make up thewhich many "hybrid" models of the station car, carsharing,

Shaheen, Susan

2004-01-01T23:59:59.000Z

166

Graphics System in Vehicle Electronics.  

E-Print Network (OSTI)

?? In this thesis three problems areas are studied related to embedded system and device driver programming: a GPS driver, the CAN Bus and study (more)

Kjellgren, Andreas

2009-01-01T23:59:59.000Z

167

Vehicle hydraulic system that provides heat for passenger compartment  

DOE Patents (OSTI)

A vehicle includes a vehicle housing which defines a passenger compartment. Attached to the vehicle housing is a hydraulic system, that includes a hydraulic fluid which flows through at least one passageway within the hydraulic system. Also attached to the vehicle housing is a passenger compartment heating system. The passenger compartment heating system includes a heat exchanger, wherein a portion of the heat exchanger is a segment of the at least one passageway of the hydraulic system.

Bartley, Bradley E. (Manito, IL); Blass, James R. (Bloomington, IL); Gibson, Dennis H. (Chillicothe, IL)

2001-01-01T23:59:59.000Z

168

Propulsion System Materials Program semiannual progress report for April 1995 through September 1995  

DOE Green Energy (OSTI)

Significant accomplishments in fabricating ceramic components for the DOE, NASA, and DOD advanced heat engine programs have provided evidence that the operation of ceramic parts in high-temperature engine environments is feasible. These programs have also demonstrated that additional research is needed in materials and processing development, design methodology, and data base and life prediction before industry will have a sufficient technology base from which to produce reliable cost-effective ceramic engine components commercially. An assessment of needs was completed, and a 5-year program plan was developed with extensive input from private industry. During the course of the Propulsion System Materials Program, remarkable progress has been made in the development of reliable structural ceramics. However, further work is needed to reduce the cost of ceramics to facilitate their commercial introduction, especially in the highly cost-sensitive automotive market. To this end, the direction of the Propulsion System Materials Program is now shifting toward reducing the cost of ceramics to facilitate commercial introduction of ceramic components for near-term engine applications. In response to extensive input from industry, the plan is to extend the engine types which were previously supported to include near-term (5--10 years) applications in conventional automobile and diesel truck engines. To facilitate the rapid transfer of this technology to US industry, the major portion of the work is being done in the ceramic industry, with technological support from government laboratories, other industrial laboratories, and universities. A systematic approach to reducing the cost of components is envisioned. The work elements are as follows: economic cost modeling, ceramic machining, powder synthesis, alternative forming and densification processes, yield improvement, system design studies, standards development, low-expansion ceramics, and testing and data base development.

NONE

1996-04-01T23:59:59.000Z

169

Power balance in a helicon plasma source for space propulsion.  

E-Print Network (OSTI)

??Electric propulsion systems provide an attractive option for various spacecraft propulsion applications due to their high specific impulse. The power balance of an electric thruster (more)

White, Daniel B., Jr

2008-01-01T23:59:59.000Z

170

Proceedings of the workshop on the modification of the upper atmosphere by Satellite Power System (SPS) propulsion effluents  

DOE Green Energy (OSTI)

Results of a workshop held in June 1979, to identify research needs for evaluating environmental impacts on the upper atmosphere (here defined as greater than 70 km) due to Satellite Power System (SPS) transport, i.e., propulsion and reentry are presented. The substantial injections of water and hydrogen therefrom may lead to global-scale regions of reduced ionization in the ionospheric F-Region that may have a serious impact on worldwide HF radio communications; and the resulting possibly significant increases in mesospheric humidity and probable cloudiness could afffect climate and remote sensing from satellites. The large injections of argon ions of kilovolt energy between low earth orbit and geostationary orbit may alter substantially the trapped radiation environment of the magnetosphere and thus the hazard for personnel and electronic equipment. During the workshop it became clear that the highest priority for SPS environmental assessment goes to theoretical studies needed before acceptable atmospheric experiments can be designed. Problems to be addressed include: the extent, magnitude, and variability of the predicted depletion in F-region ionization together with descriptions of water and hydrogen injections into the atmosphere characteristic of SPS vehicles and flight profiles; the long-term variations in mesospheric humidity and cloudiness with and without SPS operations; and the description of condensation and evaporation processes of water exhausted from high-altitude rockets in order to predict mesospheric contrail formation and dissipation. Furthermore, in considering argon ion rocket transport to geosynchronous orbit, the stopping and lifetime of the argon ion beams and consequent changes in the radiation belts, especially as they affect spacecraft, should also be addressed.

Bauer, E.

1980-06-01T23:59:59.000Z

171

Battery driven vehicle and recharging system  

SciTech Connect

A battery-driven car which has an electrical system including a minimum number of electric storage batteries as the power source, a high-voltage converter with a high-voltage capacitor bank for driving a direct current impulse motor combined with a generator for supplying current to motor/generator sets respectively integrated with the wheels of the vehicle to drive the same or for recharging the batteries in accordance with a microprocessor control system, the wheel-actuated generators providing recharging current for the batteries whenever the motor component is not being energized and in addition, said electrical system also including an air-driven turbine generator component for recharging the batteries when the vehicle reaches a predetermined speed in accordance with the microprocessor controls.

Arbisi, D. S.

1985-02-12T23:59:59.000Z

172

Dynamic response and maneuvering strategies of a hybrid autonomous underwater vehicle in hovering  

E-Print Network (OSTI)

The Odyssey IV autonomous underwater vehicle (AUV) is the next generation of unmanned subsurface robots from the MIT Sea Grant AUV Laboratory. The Odyssey IV AUV has a novel propulsion system, which includes a pair of ...

Cooney, Lauren Alise

2009-01-01T23:59:59.000Z

173

Self-learning control system for plug-in hybrid vehicles  

DOE Patents (OSTI)

A system is provided to instruct a plug-in hybrid electric vehicle how optimally to use electric propulsion from a rechargeable energy storage device to reach an electric recharging station, while maintaining as high a state of charge (SOC) as desired along the route prior to arriving at the recharging station at a minimum SOC. The system can include the step of calculating a straight-line distance and/or actual distance between an orientation point and the determined instant present location to determine when to initiate optimally a charge depleting phase. The system can limit extended driving on a deeply discharged rechargeable energy storage device and reduce the number of deep discharge cycles for the rechargeable energy storage device, thereby improving the effective lifetime of the rechargeable energy storage device. This "Just-in-Time strategy can be initiated automatically without operator input to accommodate the unsophisticated operator and without needing a navigation system/GPS input.

DeVault; Robert C. (Knoxville, TN)

2010-12-14T23:59:59.000Z

174

Electrical system for a motor vehicle  

DOE Patents (OSTI)

In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor. 2 figs.

Tamor, M.A.

1999-07-20T23:59:59.000Z

175

Electrical system for a motor vehicle  

SciTech Connect

In one embodiment of the present invention, an electrical system for a motor vehicle comprises a capacitor, an engine cranking motor coupled to receive motive power from the capacitor, a storage battery and an electrical generator having an electrical power output, the output coupled to provide electrical energy to the capacitor and to the storage battery. The electrical system also includes a resistor which limits current flow from the battery to the engine cranking motor. The electrical system further includes a diode which allows current flow through the diode from the generator to the battery but which blocks current flow through the diode from the battery to the cranking motor.

Tamor, Michael Alan (Toledo, OH)

1999-01-01T23:59:59.000Z

176

Comparison of Early-stage Design Methods for a Two-mode Hybrid Electric Vehicle  

E-Print Network (OSTI)

Comparison of Early-stage Design Methods for a Two-mode Hybrid Electric Vehicle Kukhyun Ahn+ , J the propulsion system of a hybrid electric vehicle (HEV), engine, transmission, motor, battery, power electronics. In this paper, two design optimization methods for a two-mode hybrid vehicle are examined: The first integrates

Papalambros, Panos

177

A Power Presizing Methodology for Electric Vehicle Traction Motors Bekheira Tabbache1,2  

E-Print Network (OSTI)

= Vehicle base speed; Vcr = Vehicle cruising speed; = Grade angle; Pv = Vehicle driving power; Fw = Road for the most appropriate electric propulsion system. In this case, key features are efficiency, reliability manuscript, published in "International Review on Modelling and Simulations 6, 1 (2013) 29-32" #12;motor type

Brest, Université de

178

Multiple pole electromagnetic propulsion system with separated ballistic guidance and electrical current contact surfaces  

DOE Patents (OSTI)

An electromagnetic propulsion system is disclosed having separate rails for ballistic guidance and for carrying current. In this system, one or more pairs of ballistic guidance rails are provided, with each ballistic guidance rail having a pair of current carrying rails joined to it to form a combined rail. Each combined rail is separated electrically from adjacent combined rails by electrically insulating blocks. Each of the current carrying rails in a given combined rail pair have the same electrical polarity, and the polarities alternate between adjacent combined rails. Armatures contact current carrying rails to complete the circuit to generate the accelerating Lorentz force on the armatures. Bore riders on the sabot and/or projectile are in contact with the ballistic guide rails. Separation of the current carrying and ballistic guidance functions increases resistance of the system to rail movement and bending, as well as reduced wear/damage to the rails. In further embodiments, a circumferential over wrap providing compressive force on the rails further increases resistance of the system to rail movement and bending.

Sims, Jr., James R. (Los Alamos, NM)

2008-07-15T23:59:59.000Z

179

SERAPHIM: A propulsion technology for fast trains  

Science Conference Proceedings (OSTI)

The Segmented Rail Phased Induction Motor (SERAPHIM) is a compact, pulsed linear induction motor (LIM) offering a unique capability for very high speed train propulsion. It uses technology developed for the Sandia coilgun, an electromagnetic launcher designed to accelerate projectiles to several kilometers per second. Both aluminum cylinders and plates were accelerated to a kilometer per second (Mach 3) by passing through a sequence of coils which were energized at the appropriate time. Although this technology was developed for ultra-high velocity, it can be readily adapted to train propulsion for which, at sea level, the power required to overcome air resistance limits the operational speed to a more modest 300 mph. Here, the geometry is reversed. The coils are on the vehicle and the ``projectiles`` are fixed along the roadbed. SERAPHIM operates not by embedding flux in a conductor, but by excluding it. In this propulsion scheme, pairs of closely spaced coils on the vehicle straddle a segmented aluminum reaction rail. A high frequency current is switched on as a coil pair crosses an edge and remains off as they overtake the next segment. This induces surface currents which repel the coil. In essence, the pulsed coils push off segment edges because at the high frequency of operation, the flux has insufficient time to penetrate. In contrast to conventional LIMs, the performance actually improves with velocity, even for a minimal motor consisting of a single coil pair reacting with a single plate. This paper will present results of proof-of-principle tests, electromagnetic computer simulations, and systems analysis. It is concluded that this new linear induction motor can be implemented using existing technology and is a promising alternative propulsion method for very high speed rail transportation.

Kelly, B.; Turman, B.; Marder, B.; Rohwein, G.; Aeschliman, D.; Cowan, B.

1995-06-01T23:59:59.000Z

180

Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Alternative Fuel and Alternative Fuel and Advanced Vehicle System Manufacturing Incentive to someone by E-mail Share Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Facebook Tweet about Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Twitter Bookmark Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Google Bookmark Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Delicious Rank Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on Digg Find More places to share Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System Manufacturing Incentive on AddThis.com...

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

An Integrated Analysis of a NERVA Based Nuclear Thermal Propulsion System  

Science Conference Proceedings (OSTI)

This paper presents results and conclusions derived from an integrated analysis of a NERVA based Nuclear Thermal Propulsion (NTP) system. The NTP system is sized to generate a thrust of 70,000 N (15,000 lbf), and have a specific impulse (Isp) of 860 s. This implies a reactor that operates at 350 MWth and has a mixed mean propellant outlet temperature of 2760 K. The integrated analysis will require that self-consistent neutronic/thermal-hydraulic/stress analyses be carried out. The major code packages used in this analysis are MCNP, RELAP, and ANSYS. Results from this analysis indicate that nuclear data will have to be re-generated to cover the wide temperature range, zone loading will be necessary to avoid entering the liquidus region for the fuel, and the effectiveness of the ZrC insulator will have implications for bi-modal applications. These results suggest a path forward in the development of a viable NTP system based on a NERVA reactor should initially concentrate on fuel and structural materials and associated coating development. A series of safety related criticality determinations were carried out addressing water immersion following a launch incident.

Ludewig, Hans; Cheng, L.-Y.; Ecker, Lynne; Todosow, Michael [Energy Sciences and Technology Department, Brookhaven National Laboratory, Upton, NY 11973 (United States)

2006-01-20T23:59:59.000Z

182

Powertrain system for a hybrid electric vehicle  

DOE Patents (OSTI)

A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration. 34 figs.

Reed, R.G. Jr.; Boberg, E.S.; Lawrie, R.E.; Castaing, F.J.

1999-08-31T23:59:59.000Z

183

Powertrain system for a hybrid electric vehicle  

DOE Patents (OSTI)

A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is utilized for synchronizing the rotation of the drive shaft with the driven shaft during gear shift operations. In addition, a mild hybrid concept is provided which utilizes a smaller electric motor than typical hybrid powertrain systems. Because the electric motor is drivingly engaged with the drive shaft of the transmission, the electric motor/generator is driven at high speed even when the vehicle speed is low so that the electric motor/generator provides more efficient regeneration.

Reed, Jr., Richard G. (Royal Oak, MI); Boberg, Evan S. (Hazel Park, MI); Lawrie, Robert E. (Whitmore Lake, MI); Castaing, Francois J. (Bloomfield Township, MI)

1999-08-31T23:59:59.000Z

184

Vehicle Technologies Office: Materials for Energy Recovery Systems...  

NLE Websites -- All DOE Office Websites (Extended Search)

Systems and Controlling Exhaust Gases to someone by E-mail Share Vehicle Technologies Office: Materials for Energy Recovery Systems and Controlling Exhaust Gases on Facebook...

185

EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

You are here Home EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and Component Manufacturing Initiative EA-1851: Delphi Automotive Systems Electric...

186

Composite armor, armor system and vehicle including armor system  

DOE Patents (OSTI)

Composite armor panels are disclosed. Each panel comprises a plurality of functional layers comprising at least an outermost layer, an intermediate layer and a base layer. An armor system incorporating armor panels is also disclosed. Armor panels are mounted on carriages movably secured to adjacent rails of a rail system. Each panel may be moved on its associated rail and into partially overlapping relationship with another panel on an adjacent rail for protection against incoming ordnance from various directions. The rail system may be configured as at least a part of a ring, and be disposed about a hatch on a vehicle. Vehicles including an armor system are also disclosed.

Chu, Henry S.; Jones, Warren F.; Lacy, Jeffrey M.; Thinnes, Gary L.

2013-01-01T23:59:59.000Z

187

Analytical and experimental studies of heat pipe radiation cooling of hypersonic propulsion systems  

SciTech Connect

Preliminary, research-oriented, analytical and experimental studies were completed to assess the feasibility of using high-temperature heat pipes to cool hypersonic engine components. This new approach involves using heat pipes to transport heat away from the combustor, nozzle, or inlet regions, and to reject it to the environment by thermal radiation from an external heat pipe nacelle. For propulsion systems using heat pipe radiation cooling (HPRC), it is possible to continue to use hydrocarbon fuels into the Mach 4 to Mach 6 speed range, thereby enhancing the economic attractiveness of commercial or military hypersonic flight. In the second-phase feasibility program recently completed, we found that heat loads produced by considering both convection and radiation heat transfer from the combustion gas can be handled with HPRC design modifications. The application of thermal insulation to ramburner and nozzle walls was also found to reduce the heat load by about one-half and to reduce peak HPRC system temperatures to below 2700{degrees}F. In addition, the operation of HPRC at cruise conditions of around Mach 4.5 and at an altitude of 90, 000 ft lowers peak hot section temperatures to around 2800{degrees}F. An HPRC heat pipe was successfully fabricated and tested at Mach 5 conditions of heat flux, heat load, and temperature. 24 refs.

Martin, R.A.; Merrigan, M.A.; Elder, M.G.; Sena, J.T.; Keddy, E.S. (Los Alamos National Lab., NM (United States)); Silverstein, C.C. (CCS Associates, Bethel Park, PA (United States))

1992-01-01T23:59:59.000Z

188

Analytical and experimental studies of heat pipe radiation cooling of hypersonic propulsion systems  

SciTech Connect

Preliminary, research-oriented, analytical and experimental studies were completed to assess the feasibility of using high-temperature heat pipes to cool hypersonic engine components. This new approach involves using heat pipes to transport heat away from the combustor, nozzle, or inlet regions, and to reject it to the environment by thermal radiation from an external heat pipe nacelle. For propulsion systems using heat pipe radiation cooling (HPRC), it is possible to continue to use hydrocarbon fuels into the Mach 4 to Mach 6 speed range, thereby enhancing the economic attractiveness of commercial or military hypersonic flight. In the second-phase feasibility program recently completed, we found that heat loads produced by considering both convection and radiation heat transfer from the combustion gas can be handled with HPRC design modifications. The application of thermal insulation to ramburner and nozzle walls was also found to reduce the heat load by about one-half and to reduce peak HPRC system temperatures to below 2700{degrees}F. In addition, the operation of HPRC at cruise conditions of around Mach 4.5 and at an altitude of 90, 000 ft lowers peak hot section temperatures to around 2800{degrees}F. An HPRC heat pipe was successfully fabricated and tested at Mach 5 conditions of heat flux, heat load, and temperature. 24 refs.

Martin, R.A.; Merrigan, M.A.; Elder, M.G.; Sena, J.T.; Keddy, E.S. [Los Alamos National Lab., NM (United States); Silverstein, C.C. [CCS Associates, Bethel Park, PA (United States)

1992-06-01T23:59:59.000Z

189

Options in the solar system for planetary surface exploration via hopping  

Science Conference Proceedings (OSTI)

This paper provides an initial overview of the capabilities of hopping vehicles, and examines planetary bodies in the solar system which might be amenable to exploration via hopping. A hopping vehicle is one which uses ballistic propulsive action, rather ...

Phillip M. Cunio; Farah Alibay; Pedro Meira; Todd Sheerin; Ephraim Lanford; Emily Krupczak; Jeffrey A. Hoffman

2011-03-01T23:59:59.000Z

190

Steering system for a train of rail-less vehicles  

DOE Patents (OSTI)

A steering system for use with a multiple vehicle train permits tracking without rails of one vehicle after another. This system is particularly useful for moving conveyor systems into and out of curved paths of room and pillar underground mine installations. The steering system features an elongated steering bar pivotally connected to each of adjacent vehicles at end portions of the bar permitting angular orientation of each vehicle in respect to the steering bar and other vehicles. Each end portion of the steering bar is linked to the near pair of vehicle wheels through wheel yoke pivot arms about king pin type pivots. Movement of the steering bar about its pivotal connection provides proportional turning of the wheels to effect steering and tracking of one vehicle following another in both forward and reverse directions.

Voight, Edward T. (Worthington, OH)

1983-01-01T23:59:59.000Z

191

DOE ETV-1 electric test vehicle. Phase III: performance testing and system evaluation. Final report  

DOE Green Energy (OSTI)

The DOE ETV-1 represents the most advanced electric vehicle in operation today. Engineering tests have been conducted by the Jet Propulsion Laboratory in order to characterize its overall system performance and component efficiencies within the system environment. A dynamometer was used in order to minimize the ambient effects and large uncertainties present in track testing. Extensive test requirements have been defined and procedures were carefully controlled in order to maintain a high degree of credibility. Limited track testing was performed in order to corroborate the dynamometer results. Test results include an energy flow analysis through the major subsystems and incorporate and aerodynamic and rolling losses under cyclic and various steady speed conditions. A complete summary of the major output from all relevant dynamometer and track tests is also included as an appendix.

Kurtz, D. W.

1981-12-01T23:59:59.000Z

192

Research, development, and demonstration of lead-acid batteries for electric-vehicle propulsion. Annual report, 1981  

DOE Green Energy (OSTI)

The progress of the design and development program is detailed. Results of drop tests, characteristics tests, and life cycle tests are presented and discussed. Results of tests of mechanical agitation of the electrolyte by air bubbling and an air lift pump are reported. Work on the electrode designs and electrolyte circulation systems is reported. (WHK)

None

1982-03-01T23:59:59.000Z

193

Vehicles  

Energy.gov (U.S. Department of Energy (DOE))

The U.S. Department of Energy (DOE) supports the development and deployment of advanced vehicle technologies, including advances in electric vehicles, engine efficiency, and lightweight materials....

194

Overview of the Safety Issues Associated with the Compressed Natural Gas Fuel System and Electric Drive System in a Heavy Hybrid Electric Vehicle  

DOE Green Energy (OSTI)

This report evaluates the hazards that are unique to a compressed-natural-gas (CNG)-fueled heavy hybrid electric vehicle (HEV) design compared with a conventional heavy vehicle. The unique design features of the heavy HEV are the CNG fuel system for the internal-combustion engine (ICE) and the electric drive system. This report addresses safety issues with the CNG fuel system and the electric drive system. Vehicles on U. S. highways have been propelled by ICEs for several decades. Heavy-duty vehicles have typically been fueled by diesel fuel, and light-duty vehicles have been fueled by gasoline. The hazards and risks posed by ICE vehicles are well understood and have been generally accepted by the public. The economy, durability, and safety of ICE vehicles have established a standard for other types of vehicles. Heavy-duty (i.e., heavy) HEVs have recently been introduced to U. S. roadways, and the hazards posed by these heavy HEVs can be compared with the hazards posed by ICE vehicles. The benefits of heavy HEV technology are based on their potential for reduced fuel consumption and lower exhaust emissions, while the disadvantages are the higher acquisition cost and the expected higher maintenance costs (i.e., battery packs). The heavy HEV is more suited for an urban drive cycle with stop-and-go driving conditions than for steady expressway speeds. With increasing highway congestion and the resulting increased idle time, the fuel consumption advantage for heavy HEVs (compared with conventional heavy vehicles) is enhanced by the HEVs' ability to shut down. Any increase in fuel cost obviously improves the economics of a heavy HEV. The propulsion system for a heavy HEV is more complex than the propulsion system for a conventional heavy vehicle. The heavy HEV evaluated in this study has in effect two propulsion systems: an ICE fueled by CNG and an electric drive system with additional complexity and failure modes. This additional equipment will result in a less reliable vehicle with a lower availability than a conventional heavy vehicle. Experience with heavy HEVs to date supports this observation. The key safety concern for the electric drive system is the higher voltages and currents that are required in the electric drive system. Faults that could expose personnel to these electric hazards must be considered, addressed, and minimized. The key issue for the CNG-fueled ICE is containment of the high-pressure natural gas. Events that can result in a release of natural gas with the possibility of subsequent ignition are of concern. These safety issues are discussed. The heavy HEV has the potential to have a safety record that is comparable to that of the conventional vehicle, but adequate attention to detail will be required.

Nelson, S.C.

2002-11-14T23:59:59.000Z

195

Progress in colloid propulsion  

E-Print Network (OSTI)

In the early decades of the Space Age, a great deal of work was put into the development of the Colloid Thruster as an electric propulsion system for spacecraft. In spite of the effort by the end of the 70s the programs ...

Lpez Urdiales, Jse Mariano, 1977-

2004-01-01T23:59:59.000Z

196

Total Thermal Management System for Hybrid and Full Electric Vehicles  

Total Thermal Management System for Hybrid and Full Electric Vehicles Note: The technology described above is an early stage opportunity. Licensing rights to this ...

197

Electric vehicle system for charging and supplying electrical ...  

A power system that provides power between an energy storage device, an external charging-source/load, an onboard electrical power generator, and a vehicle drive shaft.

198

High-performance batteries for off-peak energy storage and electric-vehicle propulsion. Progress report, January--June 1975. [Li--Al/KCl--LiCl/Fe sulfide, 42 kWh  

DOE Green Energy (OSTI)

This report describes the research and management efforts, for the period January--June 1975, of Argonne National Laboratory's program on high-performance lithium/metal sulfide batteries. The batteries are being developed for two applications, off-peak energy storage in electric utility networks and electric-vehicle propulsion. The battery design for the two applications differ, particularly in cell configuration and electrode design, because of the differing performance requirements. The present cells are vertically oriented, prismatic cells with two negative electrodes of a solid lithium--aluminium alloy, a central positive electrode of iron sulfide (FeS/sub 2/ or FeS), and an electrolyte of LiCl--KCl eutectic (mp, 352/sup 0/C). The operating temperature of the cells is about 400--450/sup 0/C. Recent effort in the development of engineering-scale cells was focused on designing and fabricating vertically oriented, prismatic cells and on improving the lifetime capabilities of cells. Work on electrode development was directed toward the evaluation of the factors that influence the performance of the negative electrode and the development of new designs of vertical, prismatic iron sulfide electrodes. Materials studies included work on improving feedthroughs and separators, corrosion tests of candidate materials of construction, and postoperative examinations of cells. Cell chemistry studies included continuing investigations of cell reactions and the identification of advanced cell systems. Battery development work included the design of a battery for an electric automobile and the development of battery components. The transfer of Li--Al/FeS/sub x/ battery technology to industry is being implemented through contracts with industrial firms for the manufacture of components, electrodes, and cells.

Not Available

1976-03-01T23:59:59.000Z

199

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydrualic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1995-01-01T23:59:59.000Z

200

Electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An antiskid braking and traction control system for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes one or more sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensors and determining if regenerative antiskid braking control, requiring hydraulic braking control, or requiring traction control are required. The processor then employs a control strategy based on the determined vehicle state and provides command signals to a motor controller to control the operation of the electric traction motor and to a brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative antiskid braking control, hydraulic braking control, and traction control. 10 figs.

Cikanek, S.R.

1995-09-12T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Concept design of a long range AUV propulsion system with an onboard electrical generator  

E-Print Network (OSTI)

Automated Underwater Vehicle (AUV) Technology has come a long way in the past decade. Due to advances in batteries and telecommunications, unmanned underwater vehicles no longer require a tether to a mother ship for power, ...

Poulin, Jason Eric

2012-01-01T23:59:59.000Z

202

Open loop performance of a biomimetic flapping foil autonomous underwater vehicle  

E-Print Network (OSTI)

Flapping foil propulsion is emerging as an alternative to conventional propulsion for underwater vehicles. MIT's Biomimetic Flapping Foil Autonomous Underwater Vehicle is a prototype vehicle that uses four three-dimensional ...

Wolf, Malima Isabelle, 1981-

2006-01-01T23:59:59.000Z

203

Vehicle Systems Analysis Technical Team Roadmap  

NLE Websites -- All DOE Office Websites (Extended Search)

1. Enable reliable hybrid electric, plug-in hybrid and range-extended electric, and battery electric vehicles with performance, safety, and costs comparable to or better than...

204

Electric and Hybrid Vehicle System Research and Development Project: Hybrid Vehicle Potential Assessment. Volume 1. Summary  

DOE Green Energy (OSTI)

The results of investigations conducted under Ce Hybrid Vehicle Potential Assessment Task are reported in 10 volumes. This volume contains an overview of the study and its results. The purpose of the overall study was to determine if the petroleum fuel savings achievable through the use of hybrid electric vehicles is worth the R and D expenditures needed to develop the hybrid vehicles and to determine R and D priorities. It was concluded that by the year 2010 hybrid vehicles could replace 80% of the automotive power that would otherwise be produced from petroleum fuels; the public should not suffer any mobility loss through the use of hybrid vehicles; high initial and life-cycle costs are a limiting factor; and R and D funds should be spent for systems design and the development of low-cost batteries and controllers. (LCL)

Surber, F.T.

1979-09-30T23:59:59.000Z

205

The U.S. Army's Vehicle Intelligence Program (AVIP): The Future of Manned, Wheeled Tactical Vehicles  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicle The U.S. Army's Vehicle Vehicle The U.S. Army's Vehicle Intelligence Program (AVIP): Intelligence Program (AVIP): The Future of Manned, Wheeled The Future of Manned, Wheeled Tactical Vehicles Tactical Vehicles H. E. (Bill) Knéé Oak Ridge National Laboratory National Transportation Research Center 2360 Cherahala Blvd. Knoxville, Tennessee 37932 USA Phone: (865) 946-1300 Fax: (865) 946-1314 E-mail: kneehe@ornl.gov David J. Gorsich U.S. Army Tank-Automotive and Armaments Command AMSTA-TR-N, Warren, Michigan 49397-5000 USA Phone: (810) 574-7413 Fax: (810) 574-6996 E-mail: GorsichD@tacom.army.mil IV2001 IEEE Intelligent Vehicles Symposium Tokyo, Japan http://www.ornl.gov/ORNLReview/v33_3_00/features.htm 1. Propulsion, Vehicle and Power Systems 2. Information and Decision Support Systems 3. Materials, Structures, and Mechanical Systems

206

An Exploration Perspective of Beamed Energy Propulsion  

SciTech Connect

The Vision for Exploration is currently focused on flying the Space Shuttle safely to complete our Space Station obligations, retiring the Shuttle in 2010, then returning humans to the Moon and learning how to proceed to Mars and beyond. The NASA budget still includes funds for science and aeronautics but the primary focus is on human exploration. Fiscal constraints have led to pursuing exploration vehicles that use heritage hardware, particularly existing boosters and engines, with the minimum modifications necessary to satisfy mission requirements. So, pursuit of immature technologies is not currently affordable by NASA. Beamed energy is one example of an immature technology, from a human exploration perspective, that may eventually provide significant benefits for human exploration of space, but likely not in the near future. Looking to the more distant future, this paper will examine some of the criteria that must be achieved by beamed energy propulsion to eventually contribute to human exploration of the solar system. The analysis focuses on some of the implications of increasing the payload fraction of a launch vehicle, with a quick look at trans-lunar injection. As one would expect, there is potential for benefit, and there are concerns. The analysis concludes with an assessment of the Technology Readiness Level (TRL) for some beamed energy propulsion components, indicating that TRL 2 is close to being completed.

Cole, John [NASA Marshall Space Flight Center Marshall Space Flight Center, AL 35812 (United States)

2008-04-28T23:59:59.000Z

207

Analysis of the AirTouch automatic vehicle location system's ability to locate moving vehicles  

E-Print Network (OSTI)

Automatic vehicle location systems are becoming more prevalent in diverse transportation applications. Their ability to locate vehicles can assist in locating emergency and public transit vehicles for better real-time dispatching as well as recovering stolen vehicles. Because many applications require traveling vehicles, this thesis focused on the AirTouch system's ability to accurately locate a moving vehicle. Recent AirTouch vehicle location system reports were compiled and analyzed to distinguish what factors tend to affect the accuracy of the readings. Based on the results of the reports, two sites were selected to minimize the external effects that could create inaccurate readings. Six speeds were selected ranging from 0 to 80 kmph (O to 50 mph) in 16 kmph (10 mph) increments. Each velocity was tested 20 times at each site. The location readings were compared to differential Global Positioning System (dGPS) readings which currently provide the most accurate location readings available for civilian use. The dGPS readings were also collected at each test site. It was discovered that one site produced more accurate readings compared to the other site. In addition, the longitude differences accounted for most of the error in the readings. Finally, more error was prevalent in the readings associated with the vehicle's direction of travel as opposed to readings perpendicular to the direction of travel. Based on the data analysis, it was impossible to conclude if velocity affected the accuracy of the AirTouch system. The results of this thesis have suggested that the AirTouch system does decrease in accuracy as the velocity increases among traveling vehicles. However, in one case, the accuracy of the stationary readings were less accurate compared to the non-stationary readings. At 80 kmph (50 mph), AirTouch had an approximate inaccuracy of 50 meters (164 feet). When the data was adjusted for human error, this approximate inaccuracy decreased to 33 meters (107 feet). For transit services, these averages are appropriate. When dispatching a transit vehicle, two-way communication between dispatcher and driver can verify the vehicle's exact location. Furthermore, when a customer needs to know where a vehicle is and when it should arrive, 33 to 50 meters (107 to 164 feet) is sufficient for the customers' needs.

Henry, Tracy Lynn

1995-01-01T23:59:59.000Z

208

EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and Component Manufacturing Initiative EA-1851: Delphi Automotive Systems Electric Drive Vehicle Battery and Component Manufacturing Initiative Summary This EA evaluates the environmental impacts of a proposal to provide a financial assistance grant under the American Recovery and Reinvestment Act of 2009 (ARRA) to Delphi Automotive Systems, Limited Liability Corporation (LLC) (Delphi). Delphi proposes to construct a laboratory referred to as the "Delphi Kokomo, IN Corporate Technology Center" (Delphi CTC Project) and retrofit a manufacturing facility. The project would advance DOE's Vehicle Technology Program through manufacturing and testing of electric-drive vehicle components as well as assist in the

209

Deuterium microbomb rocket propulsion  

E-Print Network (OSTI)

Large scale manned space flight within the solar system is still confronted with the solution of two problems: 1. A propulsion system to transport large payloads with short transit times between different planetary orbits. 2. A cost effective lifting of large payloads into earth orbit. For the solution of the first problem a deuterium fusion bomb propulsion system is proposed where a thermonuclear detonation wave is ignited in a small cylindrical assembly of deuterium with a gigavolt-multimegampere proton beam, drawn from the magnetically insulated spacecraft acting in the ultrahigh vacuum of space as a gigavolt capacitor. For the solution of the second problem, the ignition is done by argon ion lasers driven by high explosives, with the lasers destroyed in the fusion explosion and becoming part of the exhaust.

Friedwardt Winterberg

2008-12-02T23:59:59.000Z

210

ANALYSIS OF CONTROL SYSTEMS FOR VEHICLE HYBRID POWERTRAINS  

E-Print Network (OSTI)

Abstract. Ecological and socioeconomic factors determine high interest in the development of pollution-free vehicles. At present use of electro-vehicles is suppressed by a number of technological factors. Vehicles with alternative powertrains are transitional stage between development of pollution-free vehicles and vehicles with conventional internal combustion engine. According to these aspects the investigation on conventional hybrid drives and their control systems is carried out in the article. The equations that allow evaluating effectiveness of regenerative braking for different variants of hybrid drive are given. The AMESim software is used as the modeling environment, in which models of hybrid vehicles are developed and the results of virtual simulation are analyzed. Also a number of recommendations for increasing of regenerative braking effectiveness are given.

Siarhei Kliauzovich

2007-01-01T23:59:59.000Z

211

Evaluation of near-term electric vehicle battery systems through in-vehicle testing: Interim report  

SciTech Connect

EVTF personnel tested 10 batteries, including lead-acid (flat plate and tubular design), Gel Cell III, advanced lead-acid, nickel iron, nickel zinc, nickel cadmium, and zinc chloride systems. The assessment encompassed the following tasks: initial acceptance testing of battery components and systems, daily in-vehicle operation of the batteries, monthly in-vehicle driving range tests, and periodic static discharge tests under computer control. Performance data were based on specific energy versus accumulated vehicle mileage and vehicle driving range over a fixed operating cycle at 35-mph constant speed and the SAE J227a C cycle. A battery's life cycle was terminated when its measured capacity dropped below 60% of the rating, at a 2-h rate, after 25% of the battery modules had been replaced. The EVs used for the tests were 10 Volkswagen vans and 2 General Motors Griffin vans.

Blickwedel, T.W.

1986-12-01T23:59:59.000Z

212

Quantifying the Effects of Idle-Stop Systems on Fuel Economy in Light-Duty Passenger Vehicles  

SciTech Connect

Vehicles equipped with idle-stop (IS) systems are capable of engine shut down when the vehicle is stopped and rapid engine re-start for the vehicle launch. This capability reduces fuel consumption and emissions during periods when the engine is not being utilized to provide propulsion or to power accessories. IS systems are a low-cost and fast-growing technology in the industry-wide pursuit of increased vehicle efficiency, possibly becoming standard features in European vehicles in the near future. In contrast, currently there are only three non-hybrid vehicle models for sale in North America with IS systems and these models are distinctly low-volume models. As part of the United States Department of Energys Advanced Vehicle Testing Activity, ECOtality North America has tested the real-world effect of IS systems on fuel consumption in three vehicle models imported from Europe. These vehicles were chosen to represent three types of systems: (1) spark ignition with 12-V belt alternator starter; (2) compression ignition with 12-V belt alternator starter; and (3) direct-injection spark ignition, with 12-V belt alternator starter/combustion restart. The vehicles have undergone both dynamometer and on-road testing; the test results show somewhat conflicting data. The laboratory data and the portion of the on-road data in which driving is conducted on a prescribed route with trained drivers produced significant fuel economy improvement. However, the fleet data do not corroborate improvement, even though the data show significant engine-off time. It is possible that the effects of the varying driving styles and routes in the fleet testing overshadowed the fuel economy improvements. More testing with the same driver over routes that are similar with the IS system-enabled and disabled is recommended. There is anecdotal evidence that current Environmental Protection Agency fuel economy test procedures do not capture the fuel economy gains that IS systems produce in real-world driving. The program test results provide information on the veracity of these claims.

Jeff Wishart; Matthew Shirk

2012-12-01T23:59:59.000Z

213

Essays on transition challenges for alternative propulsion vehicles and transportation systems  

E-Print Network (OSTI)

Technology transitions require the formation of a self-sustaining market through alignment of consumers' interests, producers' capabilities, infrastructure development, and regulations. In this research I develop a broad ...

Struben, Jeroen J. R

2006-01-01T23:59:59.000Z

214

Performance testing of the Ford/GE Second Generation Single-Shaft Electric Propulsion (ETX-II) System  

Science Conference Proceedings (OSTI)

System-level-operational testing of the ETX-II test-bed electric vehicle is described and the results discussed. Because the traction battery is a major factor in the performance of an electric vehicle, previously reported work on the sodium-sulfur battery designed for use with the ETX-II is reviewed in detail. Chassis dynamometer performance of the test-bed vehicle met or exceeded design goals and compared reasonably well with SIMPLEV computer modeling results. Areas are identified wherein further work is needed to establish a firmer basis for comparison of the simulation and the observed results.

MacDowall, R.D.; Burke, A.F.

1993-06-01T23:59:59.000Z

215

Seminar Center for Advanced Vehicle Technologies Thursday, 04/29 -2:00pm  

E-Print Network (OSTI)

Seminar ­ Center for Advanced Vehicle Technologies Thursday, 04/29 - 2:00pm 101 Bevill Hall of engineering and R&D positions with the Ford Motor Company, where he led several electric and hybrid drive scientific and technical papers and four books, including Hybrid Vehicle Propulsion Systems, which

Carver, Jeffrey C.

216

Control system and method for a hybrid electric vehicle  

DOE Patents (OSTI)

A vehicle system controller (20) is presented for a LSR parallel hybrid electric vehicle having an engine (10), a motor (12), wheels (14), a transmission (16) and a battery (18). The vehicle system controller (20) has a state machine having a plurality of predefined states (22-32) that represent operating modes for the vehicle. A set of rules is defined for controlling the transition between any two states in the state machine. The states (22-32) are prioritized according to driver demands, energy management concerns and system fault occurrences. The vehicle system controller (20) controls the transitions from a lower priority state to a higher priority state based on the set of rules. In addition, the vehicle system controller (20) will control a transition to a lower state from a higher state when the conditions no longer warrant staying in the current state. A unique set of output commands is defined for each state for the purpose of controlling lower level subsystem controllers. These commands serve to achieve the desire vehicle functionality within each state and insure smooth transitions between states.

Phillips, Anthony Mark (Northville, MI); Blankenship, John Richard (Dearborn, MI); Bailey, Kathleen Ellen (Dearborn, MI); Jankovic, Miroslava (Birmingham, MI)

2001-01-01T23:59:59.000Z

217

Space nuclear power system and the design of the nuclear electric propulsion OTV  

SciTech Connect

Payload increases of three to five times that of the Shuttle/Centaur can be achieved using nuclear electric propulsion. Various nuclear power plant options being pursued by the SP-100 Program are described. These concepts can grow from 100 kW/sub e/ to 1MW/sub e/ output. Spacecraft design aspects are addressed, including thermal interactions, plume interactions, and radiation fluences. A baseline configuration is described accounting for these issues. Safety aspects of starting the OTV transfer from an altitude of 300 km indicate no significant additional risk to the biosphere.

Buden, D.; Garrison, P.W.

1984-01-01T23:59:59.000Z

218

FY2003 Progress Report for Automotive Propulsion Materials Program  

NLE Websites -- All DOE Office Websites (Extended Search)

FreedomCAR and Vehicle Technologies FreedomCAR and Vehicle Technologies 1000 Independence Avenue S.W. Washington, DC 20585-0121 FY 2003 Progress Report for Automotive Propulsion Materials Program Energy Efficiency and Renewable Energy Office of FreedomCAR and Vehicle Technologies Edward Wall Program Manager December 2003 U.S. Department of Energy Office of FreedomCAR and Vehicle Technologies 1000 Independence Avenue S.W. Washington, DC 20585-0121 FY 2003 Progress Report for Automotive Propulsion Materials Program Energy Efficiency and Renewable Energy Office of FreedomCAR and Vehicle Technologies Edward Wall Program Manager December 2003 CONTENTS 1. INTRODUCTION ........................................................................................................... 1

219

NREL: Vehicles and Fuels Research - Fuel Cell Electric Vehicle Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicle Technologies in the Media Spotlight Vehicle Technologies in the Media Spotlight August 19, 2013 Automakers have made steady progress reducing the cost and increasing the performance of fuel cell propulsion systems, and most major vehicle manufacturers are geared to launch fuel cell electric vehicles in the U.S. market between 2015 and 2020. A recent Denver Post article highlights the National Renewable Energy Laboratory's contribution to the progress that automakers have made in getting their fuel cell electric vehicles ready for production. "When I started working on fuel cells in the '90s, people said it was a good field because a solution would always be five years away," said Brian Pivovar, who leads NREL's fuel cell research. "Not anymore." The article references a variety of NREL's hydrogen and fuel cell

220

Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation)  

DOE Green Energy (OSTI)

Presentation on Fuel Cells Vehicle Systems Analysis (Fuel Cell Freeze Investigation) for the 2005 Hydrogen, Fuel Cells & Infrastructure Technologies Program Annual Review held in Arlington, Virginia on May 23-26, 2005.

Pesaran, A.; Kim, G.; Markel, T.; Wipke, K.

2005-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Personnel Protection Systems for Electric Vehicle Charging Circuits  

Science Conference Proceedings (OSTI)

Electric vehicle charging systems will be required to provide protection against electric shock due to ground faults. This report reviews the subject of electric shock, including the effects of current magnitude, frequency, duration, alternating and direct current, and supply voltage to ground. The report suggests a basis for specific safety requirements--such as a ground fault circuit interrupt--that can be included in a product safety standard covering electric vehicle charging systems to meet the 1996...

2000-01-05T23:59:59.000Z

222

Development of a cold gas propulsion system for the TALARIS hopper  

E-Print Network (OSTI)

The TALARIS (Terrestrial Artificial Lunar And Reduced gravIty Simulator) hopper is a small prototype flying vehicle developed as an Earth-based testbed for guidance, navigation, and control algorithms that will be used for ...

Nothnagel, Sarah L. (Sarah Lynn)

2011-01-01T23:59:59.000Z

223

Intelligent Systems Software for Unmanned Air Vehicles  

E-Print Network (OSTI)

weighted fuzzy AND and OR nodes, but can also have pre-trained neural networks as nodes. Fuzzy logic, where vehicles use a consensus algorithm based upon graph theory in order to arrive at the correct., and Gibson, R. E., "A Fuzzy-Logic Architecture for Autonomous Multisensor Data Fusion," IEEE Trans. Ind

224

Power balance in a helicon plasma source for space propulsion  

E-Print Network (OSTI)

Electric propulsion systems provide an attractive option for various spacecraft propulsion applications due to their high specific impulse. The power balance of an electric thruster based on a helicon plasma source is ...

White, Daniel B., Jr

2008-01-01T23:59:59.000Z

225

FY 2006 Annual Progress Report for Heavy Vehicle Systems Optimization Program  

NLE Websites -- All DOE Office Websites (Extended Search)

Heavy veHicle SyStemS Heavy veHicle SyStemS OptimizatiOn prOgram U.S. Department of Energy FreedomCAR and Vehicle Technologies Program 1000 Independence Avenue, S.W. Washington, DC 20585-0121 FY 2006 Annual Progress Report for Heavy Vehicle Systems Optimization Program Submitted to: U.S. Department of Energy Energy Efficiency and Renewable Energy FreedomCAR and Vehicle Technologies Program Advanced Vehicle Technology Analysis and Evaluation Lee Slezak, Technology Manager Heavy Vehicle Systems Optimization Program FY 2006 Annual Report iii CONTENTS I. Aerodynamic Drag Reduction......................................................................................................... 1 A. DOE Project on Heavy Vehicle Aerodynamic Drag .................................................................. 1

226

MIT Electric Vehicle Team Porsche designing a cooling system for the AC24 electric motor  

E-Print Network (OSTI)

In this thesis I worked on the design and analysis of a cooling system for the electric motor of the MIT Electric Vehicle Team's Porsche 914 Battery Electric Vehicle. The vehicle's Azure Dynamics AC24 motor tended to ...

Meenen, Jordan N

2010-01-01T23:59:59.000Z

227

Modular Energy Storage System for Alternative Energy Vehicles  

Science Conference Proceedings (OSTI)

An electrical vehicle environment was established to promote research and technology development in the area of high power energy management. The project incorporates a topology that permits parallel development of an alternative energy delivery system and an energy storage system. The objective of the project is to develop technologies, specifically power electronics, energy storage electronics and controls that provide efficient and effective energy management between electrically powered devices in alternative energy vehicles ?? plugin electric vehicles, hybrid vehicles, range extended vehicles, and hydrogen-based fuel cell vehicles. In order to meet the project objectives, the Vehicle Energy Management System (VEMS) was defined and subsystem requirements were obtained. Afterwards, power electronics, energy storage electronics and controls were designed. Finally, these subsystems were built, tested individually, and integrated into an electric vehicle system to evaluate and optimize the subsystems?? performance. Phase 1 of the program established the fundamental test bed to support development of an electrical environment ideal for fuel cell application and the mitigation of many shortcomings of current fuel cell technology. Phase 2, continued development from Phase 1, focusing on implementing subsystem requirements, design and construction of the energy management subsystem, and the integration of this subsystem into the surrogate electric vehicle. Phase 2 also required the development of an Alternative Energy System (AES) capable of emulating electrical characteristics of fuel cells, battery, gen set, etc. Under the scope of the project, a boost converter that couples the alternate energy delivery system to the energy storage system was developed, constructed and tested. Modeling tools were utilized during the design process to optimize both component and system design. This model driven design process enabled an iterative process to track and evaluate the impact of design alternatives and the impact of changes. Refinement of models was accomplished through correlation studies to measured data obtained from functioning hardware. Specifically, correlation and characterization of the boost converter resulted in a model that was effectively used to determine overall VEMS performance. The successful development of the boost converter can be attributed to utilization of previously proven technologies and adapting to meet the VEMS requirements. This program provided significant improvement in development time of various generations of boost converters. The software strategies and testing results support the development of current energy management systems and directly contribute to the future of similar, commercial products at Magna E-Car Systems. Because of this development project, Magna E-Car Systems is able to offer automotive customers a boost converter system with reduced time to market and decreased product cost, thus transferring the cost and timing benefits to the end use consumer.

Janice Thomas; Frank Ervin

2012-02-28T23:59:59.000Z

228

Load calculation and system evaluation for electric vehicle climate control  

DOE Green Energy (OSTI)

Providing air conditioning for electric vehicles (EVs) represents an important challenge, because vapor compression air conditioners, which are common in gasoline powered vehicles, may consume a substantial part of the total energy stored in the EV battery. This report consists of two major parts. The first part is a cooling and heating load calculation for electric vehicles. The second part is an evaluation of several systems that can be used to provide the desired cooling and heating in EVs. Four cases are studied. Short range and full range EVs are each analyzed twice, first with the regular vehicle equipment, and then with a fan and heat reflecting windows, to reduce hot soak. Recent legislation has allowed the use of combustion heating whenever the ambient temperature drops below 5{degrees}C. This has simplified the problem of heating, and made cooling the most important problem. Therefore, systems described in this project are designed for cooling, and their applicability to heating at temperatures above 5{degrees}C is described. If the air conditioner systems cannot be used to cover the whole heating load at 5{degrees}C, then the vehicle requires a complementary heating system (most likely a heat recovery system or electric resistance heating). Air conditioners are ranked according to their overall weight. The overall weight is calculated by adding the system weight and the weight of the battery necessary to provide energy for system operation.

Aceves-Saborio, S.; Comfort, W.J. III

1993-10-27T23:59:59.000Z

229

Issues and Recent Trends in Vehicle Safety Communication Systems  

E-Print Network (OSTI)

This paper surveys the research on the applications of inter-vehicle communications, the issues of the deployment and technology, and the current status of inter-vehicle communications projects in Europe, the United States and Japan. The inter-vehicle communications, defined here as communications between on-board ITS computers, improve road traffic safety and efficiency by expanding the horizon of the drivers and on-board sensors. One of the earliest studies on inter-vehicle communications began in Japan in the early 1980s. The inter-vehicle communications play an essential role in automated platooning and cooperative driving systems developed since the 1990s by enabling vehicles to obtain data that would be difficult or impossible to measure with on-board sensors. During these years, interest in applications for inter-vehicle communications increased in the EU, the US and Japan, resulting in many national vehicle safety communications projects such as CarTALK2000 in the EU and VSCC in the US. The technological issues include protocol and communications media. Experiments employ various kinds of protocols and typically use infrared, microwave or millimeter wave media. The situation is ready for standardization. The deployment strategy is another issue. To be feasible, deployment should begin with multiple rather than single services that would work even at a low penetration rate of the communication equipment. In addition, non-technological, legal and institutional issues remained unsolved. Although inter-vehicle communications involve many issues, such applications should be promoted because they will lead to safer and more efficient automobile traffic.

Sadayuki Tsugawa

2005-01-01T23:59:59.000Z

230

Systems analysis of decontamination options for civilian vehicles.  

Science Conference Proceedings (OSTI)

The objective of this project, which was supported by the Department of Homeland Security (DHS) Science and Technology Directorate (S&T) Chemical and Biological Division (CBD), was to investigate options for the decontamination of the exteriors and interiors of vehicles in the civilian setting in order to restore those vehicles to normal use following the release of a highly toxic chemical. The decontamination of vehicles is especially challenging because they often contain sensitive electronic equipment, multiple materials some of which strongly adsorb chemical agents, and in the case of aircraft, have very rigid material compatibility requirements (i.e., they cannot be exposed to reagents that may cause even minor corrosion). A systems analysis approach was taken examine existing and future civilian vehicle decontamination capabilities.

Foltz, Greg W.; Hoette, Trisha Marie

2010-11-01T23:59:59.000Z

231

LASL nuclear rocket propulsion program  

SciTech Connect

The immediate objective of the LASL nuclear propulsion (Rover) program is the development of a heat exchanger reactor system utilizing uranium-graphite fuel elements and ammonia propellant. This program is regarded as the first step in the development of nuclear propulsion systems for missiles. The major tasks of the program include the investigation of materials at high temperatures, development of fuel elements, investigation of basic reactor characteristics, investigation of engine control problems, detailed engine design and ground testing. The organization and scheduling of the initial development program have been worked out in some detail. Only rather general ideas exist concerning the projection of this work beyond 1958.

Schreiber, R.E.

1956-04-01T23:59:59.000Z

232

Energy Efficiency in Heavy Vehicle Tires, Drivetrains, and Braking Systems  

DOE Green Energy (OSTI)

This document was prepared to support the primary goals of the Department of Energy, Office of Heavy Vehicle Technologies. These were recently stated as follows: ''Develop by 2004 the enabling technologies for a class 7-8 truck with a fuel efficiency of 10 mpg (at 65 mph) which will meet prevailing emission standards. For Class 3-6 trucks operating on an urban driving cycle, develop by 2004 commercially viable vehicles that achieve at least double the fuel economy of comparable current vehicles (1999), and as a research goal, reduce criteria pollutants to 30% below EPA standards. Develop by 2004 the diesel engine enabling technologies to support large-scale industry dieselization of Class 1 and 2 trucks, achieving a 35 % fuel efficiency improvement over comparable gasoline-fueled trucks, while meeting applicable emissions standards.'' The enabling technologies for improving the fuel efficiency of trucks, include not only engine technologies but also technologies involved with lowering the rolling resistance of tires, reducing vehicle aerodynamic drag, improving thermal management, and reducing parasitic frictional losses in drive train components. Opportunities also exist for making better use of the energy that might ordinarily be dissipated during vehicle braking. Braking systems must be included in this evaluation since safety in truck operations is vital, and braking requirements are greater for vehicles having lowered resistance to rolling. The Office of Heavy Vehicle Technologies has initiated a program to improve the aerodynamics of heavy vehicles through wind tunnel testing, computational modeling, and on-road evaluations. That activity is described in a separate multi-year plan; therefore, emphasis in this document will be on tires, drive trains, and braking systems. Recent, dramatic fluctuations in diesel fuel prices have emphasized the importance of effecting savings in truck fuel economy by implementing new component designs and materials.

Peter J. Blau

2000-04-26T23:59:59.000Z

233

Evaluation of electric vehicle battery systems through in-vehicle testing: Third annual report, April 1989  

SciTech Connect

This third annual summary report documents the performance from October 1986 through September 1987 of the Tennessee Valley Authority's ongoing project to evaluate near-term electric vehicle traction battery packs. Detailed test procedures and test data are available from EPRI in an informal data report. The purpose of this field test activity is to provide an impartial life evaluation and comparison of the performance of various battery systems in a real-world operating environment. Testing includes initial acceptance testing of battery components and systems, daily in-vehicle operation of the batteries, monthly in-vehicle driving range tests, and periodic static (constant current) discharge tests under computer control. This year's report gives the final results on a NiZn, NiCd, Gel Cell, and two lead-acid battery packs. Specific energy and monthly driving ranges (SAE J227a ''C'' cycle and 35 mi/h constant speed cycles) are maintained throughout battery life. Vehicle range test data is analyzed statistically and variable conditions are normalized for comparative purposes. Battery modules in the pack are replaced when their measured ampere-hour capacity at a fixed discharge rate drops to 60 percent of the manufacturer's rated value. The life of a test battery pack is terminated when 25 percent of the modules in the pack have been replaced or require replacement. 26 figs., 8 tabs.

Blickwedel, T.W.; Thomas, W.A.; Whitehead, G.D.

1989-04-01T23:59:59.000Z

234

Final Report: Use of Graphite Foam as a Thermal Performance Enhancement of Heavy Hybrid Propulsion Systems  

DOE Green Energy (OSTI)

Oak Ridge National Laboratory's graphite foam has the potential to be used as a heat exchanger for the Army's Future Combat System Manned Ground Vehicle and thus has the potential to improve its thermal performance. The computational fluid dynamics (CFD) program FLOW3D was used to develop a new CFD model for the graphite foam to be used in the development of a proper heat exchanger. The program was calibrated by first measuring the properties of the solid foams and determining the parameters to be used in the CFD model. Then the model was used to predict within 5% error the performance of finned foam heat sinks. In addition, the f factors and j factors commonly used to predict pressure drop and heat transfer were calculated for both the solid and finned structures. There was some evidence that corrugating the foams would yield higher j/f ratios than state of the art heat exchangers, confirming previously measured data. Because the results show that the CFD model was validated, it is recommended that the funding for Phases 2 through 5 be approved for the design of both the finned heat exchanger using tubes and round fin structures and the solid foam design using corrugated foams. It was found that the new CFD model using FLOW3D can predict both solid foam heat transfer and finned foam heat transfer with the validated model parameters. In addition, it was found that the finned foam structures exhibited j/f ratios that indicate that significant heat transfer is occurring within the fin structures due to aerodynamically induced flow, which is not present in solid aluminum fin structures. It is possible that the foam surfaces can act as turbulators that increase heat transfer without affecting pressure drop, like the vortex generators seen in state of the art heat exchangers. These numbers indicate that the foam can be engineered into an excellent heat exchanger. It was also found that corrugating the solid foams would increase the j/f ratio dramatically, allowing the solid foams to compete directly with standard heat exchangers. Although corrugated L1 foam samples have not been produced (attempts are under way), it is possible that their j/f ratio can be even higher than those of the finned structures.

Klett, James William [ORNL; Conklin, Jim [ORNL

2011-06-01T23:59:59.000Z

235

Heavy Vehicle Systems, Int. J. of Vehicle Design, Vol. 11, Nos. 3/4, 2004 349 Modelling and control of a medium-duty hybrid  

E-Print Network (OSTI)

engine. Keywords: electric vehicles, electric-vehicle simulation, hybrid electric vehicles, hybrid-duty hybrid electric truck', Int. J. of Heavy Vehicle Systems, Vol. 11, Nos. 3/4, pp. 349­370. 1 Introduction. Hybrid-electric vehicles (HEV) appear to be one of the most viable technologies with significant

Peng, Huei

236

1 Vehicle-to-grid systems: ancillary services and communications  

E-Print Network (OSTI)

, 17] in a distributed vehicle-to-grid (V2G) infrastructure. Our focus in this chapter is on EVs' grid that facilitate efficient and practical V2G systems in future smart grid systems. The rest of this chapter expertise focuses on automated tracking and billing of many small transactions distributed over space

Huang, Jianwei

237

Advanced Hybrid Propulsion and Energy Management System for High Efficiency, Off Highway, 240 Ton Class, Diesel Electric Haul Trucks  

DOE Green Energy (OSTI)

The objective of this project is to reduce the fuel consumption of off-highway vehicles, specifically large tonnage mine haul trucks. A hybrid energy storage and management system will be added to a conventional diesel-electric truck that will allow capture of braking energy normally dissipated in grid resistors as heat. The captured energy will be used during acceleration and motoring, reducing the diesel engine load, thus conserving fuel. The project will work towards a system validation of the hybrid system by first selecting an energy storage subsystem and energy management subsystem. Laboratory testing at a subscale level will evaluate these selections and then a full-scale laboratory test will be performed. After the subsystems have been proven at the full-scale lab, equipment will be mounted on a mine haul truck and integrated with the vehicle systems. The integrated hybrid components will be exercised to show functionality, capability, and fuel economy impacts in a mine setting.

Richter, Tim; Slezak, Lee; Johnson, Chris; Young, Henry; Funcannon, Dan

2008-12-31T23:59:59.000Z

238

Testing Electric Vehicle Demand in `Hybrid Households' Using a Reflexive Survey  

E-Print Network (OSTI)

of activity space to be associated with propulsion systemactivity spaces are related to choices of propulsion systems

Kurani, Kenneth; Turrentine, Thomas; Sperling, Daniel

1996-01-01T23:59:59.000Z

239

Vehicle Transient Air Conditioning Analysis: Model Development& System Optimization Investigations  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory (NREL) has developed a transient air conditioning (A/C) system model using SINDA/FLUINT analysis software. It captures all the relevant physics of transient A/C system performance, including two-phase flow effects in the evaporator and condenser, system mass effects, air side heat transfer on the condenser/evaporator, vehicle speed effects, temperature-dependent properties, and integration with a simplified cabin thermal model. It has demonstrated robust and powerful system design optimization capabilities. Single-variable and multiple variable design optimizations have been performed and are presented. Various system performance parameters can be optimized, including system COP, cabin cool-down time, and system heat load capacity. This work presents this new transient A/C system analysis and optimization tool and shows some high-level system design conclusions reached to date. The work focuses on R-134a A/C systems, but future efforts will modify the model to investigate the transient performance of alternative refrigerant systems such as carbon dioxide systems. NREL is integrating its transient air conditioning model into NRELs ADVISOR vehicle system analysis software, with the objective of simultaneously optimizing A/C system designs within the overall vehicle design optimization.

Hendricks, T. J.

2001-06-01T23:59:59.000Z

240

Double row loop-coil configuration for high-speed electrodynamic maglev suspension, guidance, propulsion and guideway directional switching  

DOE Patents (OSTI)

A stabilization and propulsion system comprising a series of loop-coils arranged in parallel rows wherein two rows combine to form one of two magnetic rails. Levitation and lateral stability are provided when the induced field in the magnetic rails interacts with the superconducting magnets mounted on the magnetic levitation vehicle. The loop-coils forming the magnetic rails have specified dimensions and a specified number of turns and by constructing differently these specifications, for one rail with respect to the other, the angle of tilt of the vehicle can be controlled during directional switching. Propulsion is provided by the interaction of a traveling magnetic wave associated with the coils forming the rails and the super conducting magnets on the vehicle.

He, Jianliang (Naperville, IL); Rote, Donald M. (Lagrange, IL)

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Double row loop-coil configuration for high-speed electrodynamic maglev suspension, guidance, propulsion and guideway directional switching  

DOE Patents (OSTI)

A stabilization and propulsion system are disclosed comprising a series of loop-coils arranged in parallel rows wherein two rows combine to form one of two magnetic rails. Levitation and lateral stability are provided when the induced field in the magnetic rails interacts with the superconducting magnets mounted on the magnetic levitation vehicle. The loop-coils forming the magnetic rails have specified dimensions and a specified number of turns and by constructing differently these specifications, for one rail with respect to the other, the angle of tilt of the vehicle can be controlled during directional switching. Propulsion is provided by the interaction of a traveling magnetic wave associated with the coils forming the rails and the superconducting magnets on the vehicle. 12 figs.

He, J.; Rote, D.M.

1996-05-21T23:59:59.000Z

242

Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Heavy-Duty Vehicle and Heavy-Duty Vehicle and Engine Search to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Delicious Rank Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on Digg Find More places to share Alternative Fuels Data Center: Heavy-Duty Vehicle and Engine Search on AddThis.com... Heavy-Duty Vehicle and Engine Search Search our database to find and compare specific vehicles, engines, or hybrid propulsion systems and generate printable reports.

243

Formal Approaches to Mode Conversion and Positioning for Vehicle System  

Science Conference Proceedings (OSTI)

The mode conversion and positioning of the vehicle subsystem of the Communication Based Train Control System (CBTC), need to be safe and reliable, being two critical components. To meet this requirement, we apply formal methods in the design of rail ... Keywords: software engineering, industrial project, CSP, OZ, PAT

Wen Su; Fan Yang; Xiaofeng Wu; Jian Guo; Huibiao Zhu

2011-07-01T23:59:59.000Z

244

Control system and method for a hybrid electric vehicle  

DOE Patents (OSTI)

Several control methods are presented for application in a hybrid electric vehicle powertrain including in various embodiments an engine, a motor/generator, a transmission coupled at an input thereof to receive torque from the engine and the motor generator coupled to augment torque provided by the engine, an energy storage device coupled to receive energy from and provide energy to the motor/generator, an engine controller (EEC) coupled to control the engine, a transmission controller (TCM) coupled to control the transmission and a vehicle system controller (VSC) adapted to control the powertrain.

Tamor, Michael Alan (Toledo, OH)

2001-03-06T23:59:59.000Z

245

Energy Basics: Propane Vehicles  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

gasoline vehicles. Dedicated propane vehicles are designed to run only on propane; bi-fuel propane vehicles have two separate fueling systems that enable the vehicle to use...

246

Wireless Charging System for Electric Vehicles  

Technology Summary ORNL researchers have made wireless power transfer more efficient by using an air core ... communication system in the wireless charging apparatus.

247

Vehicle Cooling Systems - Energy Innovation Portal  

Hydrogen and Fuel Cell; Hydropower, Wave and ... The cabin cooling system includes at least one fan to draw the hot air into the cooling duct at a ...

248

Vehicle-to-Vehicle-to-Infrastructure (V2V2I) Intelligent Transportation System Architecture  

E-Print Network (OSTI)

Abstract In this paper, I describe the vehicle-tovehicle-to-infrastructure (V2V2I) architecture, which is a hybrid of the vehicle-to-vehicle (V2V) and vehicle-toinfrastructure (V2I) architectures. The V2V2I architecture leverages the benefits of fast queries and responses from the V2I architecture, but with the advantage of a distributed architecture not having a single point-of-failure from the V2V architecture. In the V2V2I architecture, the transportation network is broken into zones in which a single vehicle is known as the Super Vehicle. Only Super Vehicles are able to communicate with the central infrastructure or with other Super Vehicles, and all other vehicles can only communicate with the Super Vehicle responsible for the zone in which they are currently traversing. I describe the Super Vehicle Detection (SVD) algorithm for how a vehicle can find or become a Super Vehicle of a zone and how Super Vehicles can aggregate the speed and location data from all of the vehicles within their zone to still ensure an accurate representation of the network. I perform an analysis using FreeSim to determine the trade-offs experienced based on the size and number of zones within a transportation network and describe the benefits of the V2V2I architecture over the pure V2I or V2V architectures. I.

Jeffrey Miller

2008-01-01T23:59:59.000Z

249

Control system design for a parallel hybrid electric vehicle  

E-Print Network (OSTI)

This thesis addresses the design of control systems for a parallel hybrid electric drive train which is an alternative to conventional passenger vehicles. The principle components of the drive train are a small internal combustion engine and an electric machine. In the parallel configuration, both devices can apply torque directly to the drive shaft for propelling the vehicle. A low order drive train model is developed which is used during the controller design and overall system simulations. The model is composed of sub-models for the engine, mechanical brake, electric machine, converter, battery, drive shaft with gears, and road load with wind resistance. The model yields results which are rough approximations of component performance and are appropriate for a top level drive train control study. In order to mimic the controls of a conventional car, the hybrid vehicle controller must insure that the torque command given by the user through the accelerator and brake pedal is tracked by the hybrid drive train without error. In this thesis two control systems are designed which enable the drive train to emulate conventional vehicle performance by meeting torque commands. The first control design maximizes the battery state-of-charge by minimizing the torque contribution of the electric machine. The second control design includes a cost parameter allowing the user to specify the appropriate tradeoff between a high state-of-charge and increased fuel savings. Simulation results verify that both controllers achieve the design objectives. Results also suggest that under proper control the parallel hybrid drive train can offer equal performance and range to a conventional passenger vehicle with improved fuel efficiency and reduced emissions.

Buntin, David Leighton

1994-01-01T23:59:59.000Z

250

A Review of Laser Ablation Propulsion  

SciTech Connect

Laser Ablation Propulsion is a broad field with a wide range of applications. We review the 30-year history of laser ablation propulsion from the transition from earlier pure photon propulsion concepts of Oberth and Saenger through Kantrowitz's original laser ablation propulsion idea to the development of air-breathing 'Lightcraft' and advanced spacecraft propulsion engines. The polymers POM and GAP have played an important role in experiments and liquid ablation fuels show great promise. Some applications use a laser system which is distant from the propelled object, for example, on another spacecraft, the Earth or a planet. Others use a laser that is part of the spacecraft propulsion system on the spacecraft. Propulsion is produced when an intense laser beam strikes a condensed matter surface and produces a vapor or plasma jet. The advantages of this idea are that exhaust velocity of the propulsion engine covers a broader range than is available from chemistry, that it can be varied to meet the instantaneous demands of the particular mission, and that practical realizations give lower mass and greater simplicity for a payload delivery system. We review the underlying theory, buttressed by extensive experimental data. The primary problem in laser space propulsion theory has been the absence of a way to predict thrust and specific impulse over the transition from the vapor to the plasma regimes. We briefly discuss a method for combining two new vapor regime treatments with plasma regime theory, giving a smooth transition from one regime to the other. We conclude with a section on future directions.

Phipps, Claude [Photonic Associates, LLC, 200A Ojo de la Vaca Road, Santa Fe NM 87508 (United States); Bohn, Willy [Bohn Laser Consult, Weinberg Weg 43, Stuttgart (Germany); Lippert, Thomas [Paul Scherrer Institut, CH5232 Villigen PSI (Switzerland); Sasoh, Akihiro [Department of Aerospace Engineering, Nagoya University, Chikusa-ku, Nagoya (Japan); Schall, Wolfgang [DLR Institute of Technical Physics, Stuttgart (Germany); Sinko, John [Micro-Nano GCOE, Nagoya University, Furo-cho, Nagoya, Aichi (Japan)

2010-10-08T23:59:59.000Z

251

2010 Vehicle Technologies Market Report  

Science Conference Proceedings (OSTI)

In the past five years, vehicle technologies have advanced on a number of fronts: power-train systems have become more energy efficient, materials have become more lightweight, fuels are burned more cleanly, and new hybrid electric systems reduce the need for traditional petroleum-fueled propulsion. This report documents the trends in market drivers, new vehicles, and component suppliers. This report is supported by the U.S. Department of Energy s (DOE s) Vehicle Technologies Program, which develops energy-efficient and environmentally friendly transportation technologies that will reduce use of petroleum in the United States. The long-term aim is to develop "leap frog" technologies that will provide Americans with greater freedom of mobility and energy security, while lowering costs and reducing impacts on the environment.

Ward, Jacob [U.S. Department of Energy; Davis, Stacy Cagle [ORNL; Diegel, Susan W [ORNL

2011-06-01T23:59:59.000Z

252

Energy Storage System Considerations for Grid-Charged Hybrid Electric Vehicles (Presentation)  

DOE Green Energy (OSTI)

Provides an overview of a study regarding energy storage system considerations for a plug-in hybrid electric vehicle.

Markel, T.; Simpson, A.

2005-09-01T23:59:59.000Z

253

Nuclear modules for space electric propulsion  

Science Conference Proceedings (OSTI)

Analysis of interplanetary cargo and piloted missions requires calculations of the performances and masses of subsystems to be integrated in a final design. In a preliminary and scoping stage the designer needs to evaluate options iteratively by using fast computer simulations. The Oak Ridge National Laboratory (ORNL) has been involved in the development of models and calculational procedures for the analysis (neutronic and thermal hydraulic) of power sources for nuclear electric propulsion. The nuclear modules will be integrated into the whole simulation of the nuclear electric propulsion system. The vehicles use either a Brayton direct-conversion cycle, using the heated helium from a NERVA-type reactor, or a potassium Rankine cycle, with the working fluid heated on the secondary side of a heat exchanger and lithium on the primary side coming from a fast reactor. Given a set of input conditions, the codes calculate composition. dimensions, volumes, and masses of the core, reflector, control system, pressure vessel, neutron and gamma shields, as well as the thermal hydraulic conditions of the coolant, clad and fuel. Input conditions are power, core life, pressure and temperature of the coolant at the inlet of the core, either the temperature of the coolant at the outlet of the core or the coolant mass flow and the fluences and integrated doses at the cargo area. Using state-of-the-art neutron cross sections and transport codes, a database was created for the neutronic performance of both reactor designs. The free parameters of the models are the moderator/fuel mass ratio for the NERVA reactor and the enrichment and the pitch of the lattice for the fast reactor. Reactivity and energy balance equations are simultaneously solved to find the reactor design. Thermalhydraulic conditions are calculated by solving the one-dimensional versions of the equations of conservation of mass, energy, and momentum with compressible flow. 10 refs., 1 tab.

Difilippo, F.C.

1998-12-31T23:59:59.000Z

254

Program on Technology Innovation: Preliminary Test Protocol for Vehicle/Grid System Compatibility Testing  

Science Conference Proceedings (OSTI)

This report defines step-by-step procedures for performing system compatibility compliance testing of plug-in electric vehicles. The tests described cover both the vehicle as a load (charging operation) and as a generation source (vehicle-to-grid operation). With many original equipment manufacturers of automobiles poised to release plug-in electric vehicles in the coming months, evaluating the interaction of these vehicles with the power grid has become an important issue. Because consumers are likely t...

2009-09-15T23:59:59.000Z

255

Legacy Vehicle Fuel System Testing with Intermediate Ethanol Blends  

DOE Green Energy (OSTI)

The effects of E10 and E17 on legacy fuel system components from three common mid-1990s vintage vehicle models (Ford, GM, and Toyota) were studied. The fuel systems comprised a fuel sending unit with pump, a fuel rail and integrated pressure regulator, and the fuel injectors. The fuel system components were characterized and then installed and tested in sample aging test rigs to simulate the exposure and operation of the fuel system components in an operating vehicle. The fuel injectors were cycled with varying pulse widths during pump operation. Operational performance, such as fuel flow and pressure, was monitored during the aging tests. Both of the Toyota fuel pumps demonstrated some degradation in performance during testing. Six injectors were tested in each aging rig. The Ford and GM injectors showed little change over the aging tests. Overall, based on the results of both the fuel pump testing and the fuel injector testing, no major failures were observed that could be attributed to E17 exposure. The unknown fuel component histories add a large uncertainty to the aging tests. Acquiring fuel system components from operational legacy vehicles would reduce the uncertainty.

Davis, G. W.; Hoff, C. J.; Borton, Z.; Ratcliff, M. A.

2012-03-01T23:59:59.000Z

256

Heavy Vehicle Essential Power Systems Workshop  

DOE Green Energy (OSTI)

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

257

Heavy Vehicle Essential Power Systems Workshop  

SciTech Connect

Essential power is a crosscutting technology area that addresses the efficient and practical management of electrical and thermal requirements on trucks. Essential Power Systems: any function on the truck, that is not currently involved in moving the truck, and requires electrical or mechanical energy; Truck Lights; Hotel Loads (HVAC, computers, appliances, lighting, entertainment systems); Pumps, starter, compressor, fans, trailer refrigeration; Engine and fuel heating; and Operation of power lifts and pumps for bulk fluid transfer. Transition from ''belt and gear driven'' to auxiliary power generation of electricity - ''Truck Electrification'' 42 volts, DC and/ or AC; All electrically driven auxiliaries; Power on demand - manage electrical loads; Benefits include: increased fuel efficiency, reduced emission both when truck is idling and moving down the road.

Susan Rogers

2001-12-12T23:59:59.000Z

258

Implementations of electric vehicle system based on solar energy in Singapore : assessment of solar photovoltaic systems  

E-Print Network (OSTI)

To evaluate the feasibility of solar energy based Electric Vehicle Transportation System in Singapore, the state of the art Photovoltaic Systems have been reviewed in this report with a focus on solar cell technologies. ...

Sun, Li

2009-01-01T23:59:59.000Z

259

Simulation of electric vehicles with hybrid power systems  

SciTech Connect

Computer programs for the simulation of the operation of electric vehicles with hybrid power systems are described. These programs treat cases in which high energy density ultracapacitors or high power density pulse batteries are used to load level the main energy storage battery in the vehicle. A generalized control strategy for splitting the power between the main battery and the pulse power devices is implemented such that the user can specify the nominal battery power as a function of the state-of-charge of the ultracapacitor or pulse power battery. The programs display graphically on the screen, as they run, the power from both the main battery and the pulse power device and the state-of-charge of the pulse power device. After each run is completed, a summary is printed out from which the effect of load leveling the battery on vehicle range and energy consumption can be determined. Default input files are provided with the programs so various combinations of vehicles, driveline components, and batteries of special current interest to the EV community can be run with either type of pulse power device. Typical simulation results are shown including cases in which the pulse power devices are connected in parallel with the main battery without interface electronics. 2 refs., 7 figs., 14 tabs.

Burke, A.F.; Cole, G.H.

1990-01-01T23:59:59.000Z

260

Hybrid Electric Vehicles - HEV Modeling  

NLE Websites -- All DOE Office Websites (Extended Search)

Modeling Modeling Background Because of time and cost constraints, designers cannot build and test each of the many possible powertrain configurations for advanced vehicles. Thus, developing fuel cells and hybrid electric vehicles (HEVs) requires accurate, flexible simulation tools. Argonne undertook a collaborative effort to further develop Autonomie in collaboration with General Motors. Autonomie is sponsored by the U.S. Department of Energy (DOE) Vehicle Technologies Program. Autonomie is a Plug-and-Play Powertrain and Vehicle Model Architecture and Development Environment to support the rapid evaluation of new powertrain/propulsion technologies for improving fuel economy through virtual design and analysis in a math-based simulation environment. Autonomie is an open architecture to support the rapid integration and analysis of powertrain/propulsion systems and technologies for rapid technology sorting and evaluation of fuel economy improvement under dynamic/transient testing conditions. The capability to sort technologies rapidly in a virtual design environment results in faster improvements in real-world fuel consumption by reducing the time necessary to develop and bring new technologies onto our roads.

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Stability and Performance of Propulsion Control Systems with Distributed Control Architectures and Failures.  

E-Print Network (OSTI)

??Future aircraft engine control systems will be based on a distributed architecture, in which, the sensors and actuators will be connected to the Full Authority (more)

Belapurkar, Rohit K.

2013-01-01T23:59:59.000Z

262

Vehicle Technologies Office: Software Tools  

NLE Websites -- All DOE Office Websites (Extended Search)

Software Tools Software Tools Several software programs are available, either for free or for a nominal charge, that can assist fleet managers and technology developers in assessing the potential impacts of implementing new technologies. Autonomie Autonomie is a Plug-and-Play Powertrain and Vehicle Model Architecture and Development Environment to support the rapid evaluation of new powertrain/propulsion technologies for improving fuel economy through virtual design and analysis in a math-based simulation environment. Developed in partnership with General Motors, Autonomie is an open architecture to support the rapid integration and analysis of powertrain/propulsion systems and technologies for rapid technology sorting and evaluation of fuel economy improvement under dynamic/transient testing conditions. The capability to sort technologies rapidly in a virtual design environment results in faster improvements in real-world fuel consumption by reducing the time necessary to develop and bring new technologies onto our roads.

263

Laser Propulsion - Quo Vadis  

SciTech Connect

First, an introductory overview of the different types of laser propulsion techniques will be given and illustrated by some historical examples. Second, laser devices available for basic experiments will be reviewed ranging from low power lasers sources to inertial confinement laser facilities. Subsequently, a status of work will show the impasse in which the laser propulsion community is currently engaged. Revisiting the basic relations leads to new avenues in ablative and direct laser propulsion for ground based and space based applications. Hereby, special attention will be devoted to the impact of emerging ultra-short pulse lasers on the coupling coefficient and specific impulse. In particular, laser sources and laser propulsion techniques will be tested in microgravity environment. A novel approach to debris removal will be discussed with respect to the Satellite Laser Ranging (SRL) facilities. Finally, some non technical issues will be raised aimed at the future prospects of laser propulsion in the international community.

Bohn, Willy L. [Institute of Technical Physics, German Aerospace Center (DLR) D-70569 Pfaffenwaldring 38-40, Stuttgart (Germany)

2008-04-28T23:59:59.000Z

264

Automatic design of the gravity-reducing propulsion system of the TALARIS Hopper Testbed  

E-Print Network (OSTI)

This thesis describes a Systems Engineering tool for automatic design, presents the results of its application to the problem of designing Earth-based reduced-gravity simulators, and compares the performance of the found ...

Caizales Daz, Jorge (Jorge Luis)

2012-01-01T23:59:59.000Z

265

A Demand Forecasting System for Clean-Fuel Vehicles  

E-Print Network (OSTI)

potential demand for electric cars. Journal of Econometrics,car by multi-vehicle households and the demand for electricelectric) vehicles, beginning with 2 percent of annual car

Brownstone, David; Bunch, David S.; Golob, Thomas F.

1994-01-01T23:59:59.000Z

266

Large-scale battery system modeling and analysis for emerging electric-drive vehicles  

Science Conference Proceedings (OSTI)

Emerging electric-drive vehicles demonstrate the potential for significant reduction of petroleum consumption and greenhouse gas emissions. Existing electric-drive vehicles typi- cally include a battery system consisting of thousands of Lithium-ion battery ... Keywords: analysis, battery system model, electric-drive vehicles

Kun Li; Jie Wu; Yifei Jiang; Zyad Hassan; Qin Lv; Li Shang; Dragan Maksimovic

2010-08-01T23:59:59.000Z

267

A web spatial decision support system for vehicle routing using Google Maps  

Science Conference Proceedings (OSTI)

This article presents a user-friendly web-based spatial decision support system (wSDSS) aimed at generating optimized vehicle routes for multiple vehicle routing problems that involve serving the demand located along arcs of a transportation network. ... Keywords: Google MapsTM, Heuristics, Spatial decision support systems, Vehicle routing

Lus Santos; Joo Coutinho-Rodrigues; Carlos Henggeler Antunes

2011-04-01T23:59:59.000Z

268

Dynamic reconfiguration of photovoltaic energy harvesting system in hybrid electric vehicles  

Science Conference Proceedings (OSTI)

Photovoltaic (PV) energy harvesting system is a promising energy source for battery replenishment in hybrid electric vehicles (HEVs.) The PV cell array is installed on different parts of a vehicle body such as the engine hood, door panels, and the roof ... Keywords: dynamic programming., hybrid electric vehicle, photovoltaic array reconfiguration, photovoltaic system

Yanzhi Wang; Xue Lin; Naehyuck Chang; Massoud Pedram

2012-07-01T23:59:59.000Z

269

Energy Management System for an Hybrid Electric Vehicle, Using Ultracapacitors and Neural Networks  

E-Print Network (OSTI)

Energy Management System for an Hybrid Electric Vehicle, Using Ultracapacitors and Neural Networks management system for hybrid electric vehicles (HEV), using neural networks (NN), was developed and tested, similar in shape and size to a Chevrolet S-10, which was converted to an electric vehicle

Rudnick, Hugh

270

Avionics and control system development for mid-air rendezvous of two unmanned aerial vehicles  

E-Print Network (OSTI)

A flight control system was developed to achieve mid-air rendezvous of two unmanned aerial vehicles (UAVs) as a part of the Parent Child Unmanned Aerial Vehicle (PCUAV) project at MIT and the Draper Laboratory. A lateral ...

Park, Sanghyuk, 1973-

2004-01-01T23:59:59.000Z

271

Design, development, and validation of a remotely reconfigurable vehicle telemetry system for consumer and government applications  

E-Print Network (OSTI)

This thesis explores the design and development of a cost-effective, easy-to-use system for remotely monitoring vehicle performance and drivers' habits, with the aim of collecting data for vehicle characterization and ...

Siegel, Joshua Eric

2011-01-01T23:59:59.000Z

272

A smart control system for electric vehicle batteries  

SciTech Connect

A smart control system for electric vehicle (EV) batteries was designed and its performance was evaluated. The hardware for the system was based on the Motorola MC68HC11ENB micro controller. A zinc bromide (Zn/Br{sub 2}) battery was chosen since it is a good candidate as an EV battery and has a large number of user variable parameters that affect its performance. The flexibility of the system arises from the fact that the system can be programmed to do a wide variety of jobs. The use of real time interrupts and other features makes the system safe for use along with the battery systems. Test data indicates that real time control of the different parameters can increase the performance of the battery by 15%. In addition to optimizing the performance of the battery the control system incorporates essential safety features.

Arikara, M.P.; Dickinson, B.E.; Branum, B. [Texas A and M Univ., College Station, TX (United States). Texas Engineering Experiment Station

1993-12-31T23:59:59.000Z

273

Lean NOx Trap Modeling in Vehicle Systems Simulations  

DOE Green Energy (OSTI)

A one-dimensional model for simulating lean NOx trap (LNT) performance is developed and validated using both steady state cycling data and transient data from FTP testing cycles. The model consists of the conservation equations for chemical species and energy in the bulk flow, energy of the solid walls, O2 storage and NOx storage (in the form of nitrites and nitrates). Nitrites and nitrates are formed by diffusion of NO and NO2, respectively, into sorbent particles (assumed to be hemi-spherical in shape) along with O2 and their formation rates are controlled by chemical kinetics as well as solid-phase diffusion rates of NOx species. The model also accounts for thermal aging and sulfation of LNTs. Empirical correlations are developed on the basis of published experimental data to capture these effects. These empirical correlations depend on total mileage for which the LNT has been in use, the mileage accumulated since the last desulfation event in addition to the freshly degreened catalyst characteristics. The model has been used in studies of vehicle systems (integration, performance etc.) including hybrid powertrain configurations. Since the engines in hybrid vehicles turn on and off multiple number of times during single drive cycles, the exhaust systems may encounter multiple cold start transients. Accurate modeling of catalyst warm-up and cooling is, therefore, very important to simulate LNT performance in such vehicles. For this purpose, the convective heat loss from the LNT to the ambient is modeled using a Nusselt number correlation that includes effects of both forced convection and natural convection (with later being important when vehicle is stationary). Using the model, the fuel penalty associated with operating LNTs on small diesel engine powered car during FTP drive cycles is estimated.

Gao, Zhiming [ORNL; Chakravarthy, Veerathu K [ORNL; Daw, C Stuart [ORNL; Conklin, Jim [ORNL

2010-09-01T23:59:59.000Z

274

DETERMINING THE UNCERTAINTY OF A GPS-BASED COLLISION VEHICLE DETECTION SYSTEM.  

E-Print Network (OSTI)

??Automotive manufacturers are researching forward collision warning systems (FCWS) to reduce the occurrence of rear-end collision accidents between vehicles. Traditionally these systems use forward scanning (more)

Amin, Sanket

2011-01-01T23:59:59.000Z

275

Electric and Hybrid Vehicle System Research and Development Project: Hybrid Vehicle Potential Assessment. Volume VIII. Scenario generation  

SciTech Connect

Scenarios are described which have been generated in support of the Hybrid Vehicle Potential Assessment Task under the JPL Electric and Hybrid Vehicle Systems Research and Development Project. The primary function of the scenario generation is to develop a set of consistent and credible forecasts required to estimate the potential impact of hybrid vehicles on future petroleum consumption in the USA, given a set of specific electric, hybrid and conventional vehicle designs. The forecasts are limited to the next 32 years (1978 to 2010. The four major areas of concern are: population and vehicle fleet size; travel patterns and vehicle fleet mix; conventional vehicle technology (Otto baseline); battery technology; and prices. The forecasts have been generated to reflect two baseline scenarios, a Petroleum Conservation Scenario (Scenario A) and an Energy Conservation Scenario (Scenario B). The primary assumption in Scenario A is higher gasoline prices than in Scenario B. This should result in less travel per car and an increased demand for smaller and more fuel efficient cars (compared to Scenario B). In Scenario B the primary assumption is higher prices on cars (new as well as used) than in Scenario A. This should lead to less cars (compared to Scenario A) and a shift to other modes of transportation.

Leschly, K.O.

1979-09-30T23:59:59.000Z

276

Hybrid System Design for Formations of Autonomous Vehicles  

E-Print Network (OSTI)

Cooperative control of multiple unmanned aerial vehicles (UAVs) poses significant theoretical and technical challenges. Recent advances in sensing, communication and computation enable the conduct of cooperative multiple-UAV missions deemed impossible in the recent past. We are interested in solving the Formation Reconfiguration Planning (FRP) problem which is focused on determining a nominal state and input trajectory for each vehicle such that the group can start from the given initial configuration and reach its given final configuration at the specified time while satisfying a set of given inter- and intra- vehicle constraints. Each solution of a FRP problem represents a distinct reconfiguration mode. When coupled with formation keeping modes, they can form a hybrid automaton of formation maneuvers in which a transition from one formation maneuver to another formation maneuver is governed by a finite automaton. This paper focuses on the implementation of the optimized hybrid system approach to formation reconfiguration for a group of 1 real and 3 virtual UAVs. Experimental results performed in the Richmond Field Station by using a helicopter-based Berkeley Aerial Robot are presented. 1

Shannon Zelinski; T. John Koo; Shankar Sastry

2003-01-01T23:59:59.000Z

277

NERVA derivative reactors for thermal and electric propulsion  

Science Conference Proceedings (OSTI)

NERVA derivative reactors (NDRs) have significant flexibility for diverse space power applications that include direct thermal propulsion, steady state power for electric propulsion, and nuclear hybrid propulsion. For illustrations, three NDR designs were developed: one for a 50 kN thrust nuclear propulsion engine, a 6 MWe steady state electric power source, and a dual mode system that produces 50 kN of direct thrust plus 300 kWe of power for electric propulsion. The NDRs are based on demonstrated reactor technologies and state-of-the-art fuel and materials' technologies. The propulsion power systems can be designed for near-term applications (mid-1990 IOC). With additional developments in high temperature fuels, higher performance NDRs can be made available by the turn of the century. 11 refs.

Chi, J.W.H.; Holman, R.R.; Pierce, B.L.

1989-01-01T23:59:59.000Z

278

Sensor network based vehicle classification and license plate identification system  

Science Conference Proceedings (OSTI)

Typically, for energy efficiency and scalability purposes, sensor networks have been used in the context of environmental and traffic monitoring applications in which operations at the sensor level are not computationally intensive. But increasingly, sensor network applications require data and compute intensive sensors such video cameras and microphones. In this paper, we describe the design and implementation of two such systems: a vehicle classifier based on acoustic signals and a license plate identification system using a camera. The systems are implemented in an energy-efficient manner to the extent possible using commercially available hardware, the Mica motes and the Stargate platform. Our experience in designing these systems leads us to consider an alternate more flexible, modular, low-power mote architecture that uses a combination of FPGAs, specialized embedded processing units and sensor data acquisition systems.

Frigo, Janette Rose [Los Alamos National Laboratory; Brennan, Sean M [Los Alamos National Laboratory; Rosten, Edward J [Los Alamos National Laboratory; Raby, Eric Y [Los Alamos National Laboratory; Kulathumani, Vinod K [WEST VIRGINIA UNIV.

2009-01-01T23:59:59.000Z

279

2007 Propulsion Materials Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicle t echnologies Progra M Less dependence on foreign oil today, and transition to a petroleum-free, emissions-free vehicle tomorrow. 2 0 0 7 a n n u a l p r o g r e s s r e p o r t U.S. Department of Energy Office of Vehicle Technologies 1000 Independence Avenue S.W. Washington, DC 20585-0121 FY 2007 Progress Report for Propulsion Materials Energy Efficiency and Renewable Energy Office of Vehicle Technologies Advanced Materials Technologies Edward J. Wall Program Manager, OVT Rogelio A. Sullivan Advanced Materials Technologies Team Leader Jerry L. Gibbs Technology Manager January 2008 CONTENTS INTRODUCTION..................................................................................................................................... 1 PROJECT 18518 - MATERIALS FOR HIGH EFFICIENCY ENGINES......................................... 9

280

Design of Electric or Hybrid vehicle alert sound system for pedestrian  

E-Print Network (OSTI)

on a track of our test center located in La Ferté Vidame. Two cars were used: -a diesel-vehicle - an electricDesign of Electric or Hybrid vehicle alert sound system for pedestrian J.-C. Chamard and V, France 1691 #12;The arrival of fully or hybrid electric vehicles raised safety problems respect

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Durability study of a vehicle-scale hydrogen storage system.  

DOE Green Energy (OSTI)

Sandia National Laboratories has developed a vehicle-scale demonstration hydrogen storage system as part of a Work for Others project funded by General Motors. This Demonstration System was developed based on the properties and characteristics of sodium alanates which are complex metal hydrides. The technology resulting from this program was developed to enable heat and mass management during refueling and hydrogen delivery to an automotive system. During this program the Demonstration System was subjected to repeated hydriding and dehydriding cycles to enable comparison of the vehicle-scale system performance to small-scale sample data. This paper describes the experimental results of life-cycle studies of the Demonstration System. Two of the four hydrogen storage modules of the Demonstration System were used for this study. A well-controlled and repeatable sorption cycle was defined for the repeated cycling, which began after the system had already been cycled forty-one times. After the first nine repeated cycles, a significant hydrogen storage capacity loss was observed. It was suspected that the sodium alanates had been affected either morphologically or by contamination. The mechanisms leading to this initial degradation were investigated and results indicated that water and/or air contamination of the hydrogen supply may have lead to oxidation of the hydride and possibly kinetic deactivation. Subsequent cycles showed continued capacity loss indicating that the mechanism of degradation was gradual and transport or kinetically limited. A materials analysis was then conducted using established methods including treatment with carbon dioxide to react with sodium oxides that may have formed. The module tubes were sectioned to examine chemical composition and morphology as a function of axial position. The results will be discussed.

Johnson, Terry Alan; Dedrick, Daniel E.; Behrens, Richard, Jr.

2010-11-01T23:59:59.000Z

282

Heavy Vehicle Systems Optimization Merit Review and Peer Evaluation  

NLE Websites -- All DOE Office Websites (Extended Search)

06 a n n u a l p r o g r e s s r e p o r t L e s s d e p e n d e n c e o n f o r e i g n o i l t o d a y, a n d t r a n s i t i o n t o a p e t r o l e u m - f r e e , e m i s s i o n s - f r e e v e h i c l e t o m o r r o w . F r e e d o m C A r A n d V e h i C l e T e C h n o l o g i e s P r o g r A m Heavy veHicle SyStemS OptimizatiOn merit review and peer evaluatiOn Department of Energy Washington, DC 20585 Dear Colleague: This document summarizes the comments provided by the Review Panel for the FY 2006 Department of Energy (DOE) Heavy Vehicle Systems Optimization Peer Review Meeting, held April 18-20, 2006 at Argonne National Laboratory in suburban Chicago, Illinois. The goal of this document is to provide the reader with a summary of the comments and scores from expert reviewers from industry and government on these systems optimization projects.

283

Evaluation of Near-Term Electric Vehicle Battery Systems through In-Vehicle Testing  

Science Conference Proceedings (OSTI)

Electric vehicles (EVs) using today's technology are suitable for certain commercial fleets. Yet expanding the EV market largely depends on developing and marketing batteries with performance characteristics superior to those already commercially available. The in-vehicle test results summarized in this report provide valuable information on the performance, life, and maintenance of 10 new batteries under real-world operating conditions.

1986-12-01T23:59:59.000Z

284

Feasibility Study Of Advanced Technology Hov Systems: Volume 2a: Feasibility Of Implementing Roadway Powered Electric Vehicle Technology In El Monte Busway: A Case Study  

E-Print Network (OSTI)

Advanced Roadway Powered Electric Vehicle System," PresentedEncourage the Use of Electric Vehicles," Third InternationalRoadway-Powered Electric Vehicles," Transportation Research

Chira-Chavala, Ted; Lechner, Edward H.; Empey, Dan M.

1992-01-01T23:59:59.000Z

285

Radioisotope Electric Propulsion for Deep Space Sample Return  

DOE Green Energy (OSTI)

The need to answer basic questions regarding the origin of the Solar System will motivate robotic sample return missions to destinations like Pluto, its satellite Charon, and objects in the Kuiper belt. To keep the mission duration short enough to be of interest, sample return from objects farther out in the Solar System requires increasingly higher return velocities. A sample return mission involves several complicated steps to reach an object and obtain a sample, but only the interplanetary return phase of the mission is addressed in this paper. Radioisotope electric propulsion is explored in this parametric study as a means to propel small, dedicated return vehicles for transferring kilogram-size samples from deep space to Earth. Return times for both Earth orbital rendezvous and faster, direct atmospheric re-entry trajectories are calculated for objects as far away as 100 AU. Chemical retro-rocket braking at Earth is compared to radioisotope electric propulsion but the limited deceleration capability of chemical rockets forces the return trajectories to be much slower.

Noble, Robert J.; /SLAC

2009-07-14T23:59:59.000Z

286

New Technology and Lunar Power Option for Power Beaming Propulsion  

DOE Green Energy (OSTI)

Orbit raising missions (LEO to GEO or beyond) are the only missions with enough current traffic to be seriously considered for near-term power beaming propulsion. Even these missions cannot justify the development expenditures required to deploy the required new laser, optical and propulsion technologies or the programmatic risks. To be deployed, the laser and optics technologies must be spin-offs of other funded programs. The manned lunar base nighttime power requirements may justify a major power beaming program with 2MW lasers and large optical systems. New laser and optical technologies may now make this mission plausible. If deployed these systems could be diverted for power beaming propulsion applications. Propulsion options include a thermal system with an Isp near 1000 sec., a new optical coupled thermal system with an Isp over 2000 sec. photovoltaic-ion propulsion systems with an Isp near 3000 sec., and a possible new optical coupled thermal system with an Isp over 2000 sec.

Kare, J; Early, J; Krupke, W; Beach, R

2004-10-11T23:59:59.000Z

287

Development of advanced battery systems for vehicle applications  

SciTech Connect

The Advanced Battery Business Unit (ABBU) of Johnson Controls, Inc. is developing several promising advanced battery technologies including flow-through lead-acid, zinc/bromine, and nickel hydrogen. The flow-through lead-acid technology, which is being developed under Department of Energy (DOE) sponsorship, is progressing towards the fabrication of a 39 kWh battery system. Recent efforts have focused on achieving the aggressive specific energy goal of 56 Wh/kg in 12 volt module form. Recent DOE sponsored work in the zinc/bromine program has focused on the development of a proof-of concept 50 kWh electric vehicle system for a light van application. Efforts in the nickel hydrogen program have focused on reducing system cost in order to make the life-time premium market and EV market possible targets. The status and future direction of each of these programs are summarized.

Zagrodnik, J.P.; Eskra, M.D.; Andrew, M.G.; Gentry, W.O.

1989-01-01T23:59:59.000Z

288

Design and testing of a biomimetic tuna using shape memory alloy induced propulsion  

Science Conference Proceedings (OSTI)

Current unmanned undersea vehicles (UUVs) are almost exclusively propeller driven designs, which must inherently be optimized for a particular speed, sacrificing low speed manoeuvrability for cruising efficiency. Recently, biomimetic approaches to underwater ... Keywords: Shape memory alloys, Shape propulsion, Smart structures

Afzal Suleman; Curran Crawford

2008-02-01T23:59:59.000Z

289

Power Charging and Supply System for Electric Vehicles ...  

Functions as a mobile electrical power generator for emergency and other uses; Applications and Industries. Electric vehicles; Hybrid electric ...

290

Improved Empty Vehicle Balancing in Automated Material Handling Systems  

Science Conference Proceedings (OSTI)

The use of automated guided vehicles in high-tech industries such as the semiconductor industry results, due to the size of such factories, in highly complex rail-networks. In contrast to the routing of vehicles that are transporting a lot to its destination, ... Keywords: Vehicle Balancing, AMHS, Semiconductor, Simulation

Roland Wertz; Christian Fischmann; Fabian Bttinger; Martin Kasperczyk

2008-04-01T23:59:59.000Z

291

Hybrid energy storage systems and battery management for electric vehicles  

Science Conference Proceedings (OSTI)

Electric vehicles (EV) are considered as a strong alternative of internal combustion engine vehicles expecting lower carbon emission. However, their actual benefits are not yet clearly verified while the energy efficiency can be improved in many ways. ... Keywords: battery-supercapacitor hybrid, charging/discharging asymmetry, electric vehicle, regenerative braking

Sangyoung Park, Younghyun Kim, Naehyuck Chang

2013-05-01T23:59:59.000Z

292

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

NLE Websites -- All DOE Office Websites (Extended Search)

RRXDF106605 RRXDF106605 Hybrid Propulsion System: Mild Parallel Belt-Alternator Starter (BAS) Number of Electric Machines: 1 Motor: 15 kW (peak), AC induction Battery Specifications Manufacturer: Hitachi Type: Cylindrical Lithium-ion Number of Cells: 32 Nominal Cell Voltage: 3.6 V Nominal System Voltage: 115.2 V Rated Pack Capacity: 4.4 Ah Maximum Cell Charge Voltage 2 : 4.10 V Minimum Cell Discharge Voltage 2 : 3.00 V Thermal Management: Active - Forced air Pack Weight: 65 lb BEGINNING-OF-TEST: BATTERY LABORATORY TEST RESULTS SUMMARY Vehicle Mileage and Testing Date Vehicle Odometer: 4,244 mi Date of Test: January 9, 2013 Static Capacity Test Measured Average Capacity: 3.88 Ah Measured Average Energy Capacity: 450 Wh HPPC Test Pulse Discharge Power @ 50% DOD

293

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

NLE Websites -- All DOE Office Websites (Extended Search)

RR0DF106791 RR0DF106791 Hybrid Propulsion System: Mild Parallel Belt-Alternator Starter (BAS) Number of Electric Machines: 1 Motor: 15 kW (peak), AC induction Battery Specifications Manufacturer: Hitachi Type: Cylindrical Lithium-ion Number of Cells: 32 Nominal Cell Voltage: 3.6 V Nominal System Voltage: 115.2 V Rated Pack Capacity: 4.4 Ah Maximum Cell Charge Voltage 2 : 4.10 V Minimum Cell Discharge Voltage 2 : 3.00 V Thermal Management: Active - Forced air Pack Weight: 65 lb BEGINNING-OF-TEST: BATTERY LABORATORY TEST RESULTS SUMMARY Vehicle Mileage and Testing Date Vehicle Odometer: 5,715 mi Date of Test: January 8, 2013 Static Capacity Test Measured Average Capacity: 3.98 Ah Measured Average Energy Capacity: 460 Wh HPPC Test Pulse Discharge Power @ 50% DOD

294

Electric vehicle smart charging and vehicle-to-grid operation, International Journal of Parallel, Emergent and Distributed Systems, vol. 27, no. 3. March 2012.  

E-Print Network (OSTI)

in to the EV Supply Equipment (EVSE), the PGAM checks for an existing charging profile. If none is found heElectric vehicle smart charging and vehicle-to-grid operation, International Journal of Parallel, Emergent and Distributed Systems, vol. 27, no. 3. March 2012. #12; Abstract--Electric vehicle (EV) charging

California at Los Angeles, University of

295

Battery management system for Li-Ion batteries in hybrid electric vehicles.  

E-Print Network (OSTI)

??The Battery Management System (BMS) is the component responsible for the effcient and safe usage of a Hybrid Electric Vehicle (HEV) battery pack. Its main (more)

Marangoni, Giacomo

2010-01-01T23:59:59.000Z

296

Plug-In Hybrid Electric Vehicle Energy Storage System Design: Preprint  

DOE Green Energy (OSTI)

This paper discusses the design options for a plug-in hybrid electric vehicle, including power, energy, and operating strategy as they relate to the energy storage system.

Markel, T.; Simpson, A.

2006-05-01T23:59:59.000Z

297

A new hybrid computational intelligence algorithm for optimized vehicle routing applications in geographic information systems.  

E-Print Network (OSTI)

??This project explores the application of two developing algorithmic paradigms from the field of computational intelligence towards optimized vehicle routing applications within geographic information systems (more)

Rice, Michael Norris

2005-01-01T23:59:59.000Z

298

Optimization of Fuel Cell System Operating Conditions for Fuel Cell Vehicles  

E-Print Network (OSTI)

An Indirect Methanol Pem Fuel Cell System, SAE 2001, (paperof automotive PEM fuel cell stacks, SAE 2000 (paper numberParasitic Loads in Fuel Cell Vehicles, International Journal

Zhao, Hengbing; Burke, Andy

2008-01-01T23:59:59.000Z

299

Assessment of US electric vehicle programs with ac powertrains  

Science Conference Proceedings (OSTI)

AC powertrain technology is a promising approach to improving the performance of electric vehicles. Four major programs are now under way in the United States to develop ac powertrains: the Ford/General Electric single-shaft electric propulsion system (ETX-II), the Eaton dual-shaft electric propulsion system (DSEP), the Jet Propulsion Laboratories (JPL) integrated ac motor drive and recharge system, and the Massachusetts Institute of Technology (MIT) variable reluctance motor (VRM) drive. The JPL program is sponsored by EPRI; the other three programs are funded by the US Department of Energy. This preliminary assessment of the four powertrain programs focuses on potential performance, costs, safety, and commercial feasibility. Interviews with program personnel were supplemented by computer simulations of electric vehicle performance using the four systems. Each of the four powertrains appears superior to standard dc powertrain technology in terms of performance and weight. The powertrain technologies studied in this assessment are at varying degrees of technological maturity. One or more of the systems may be ready for incorporation into an advanced electric vehicle during the early 1990s. Each individual report will have a separate abstract. 5 refs., 37 figs., 29 tabs.

Kevala, R.J. (Booz, Allen and Hamilton, Inc., Bethesda, MD (USA). Transportation Consulting Div.)

1990-02-01T23:59:59.000Z

300

Evaluation of near-term electric vehicle battery systems through in-vehicle testing: Second annual final report  

SciTech Connect

This report documents the performance from October 1985 through September 1986 of the Tennessee Valley Authority's ongoing project to evaluate near-term electric vehicle traction batteries. This second annual report includes the addition of four new batteries and the termination of two sets. The purpose of this field test activity is to provide an impartial evaluation and comparison of battery performance in a real-world operating environment. Testing includes initial acceptance testing of battery components and systems, daily in-vehicle operation of the batteries, monthly in-vehicle driving range tests, and periodic static (constant current) discharge tests under computer control. Battery performance data is typically presented on the basis of specific energy versus accumulated vehicle mileage and vehicle driving range over fixed operating cycle (35 mi/h) constant speed (SAE J227a ''C'' Cycle). Data is analyzed statistically with variable conditions normalized. The life-cycle is terminated when a battery system's measured capacity drops below 60 percent of rating (at the 2-hour rate) and/or after 25 percent of the battery modules have been replaced. 120 figs., 2 tabs.

Blickwedel, T.W.; Whitehead, G.D.; Thomas, W.A.

1987-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Vehicle routing for the last mile of power system restoration  

SciTech Connect

This paper studied a novel problem in power system restoration: the Power Restoration Vehicle Routing Problem (PRVRP). The goal of PRVRPs is to decide how coordinate repair crews effectively in order to recover from blackouts as fast as possible after a disaster has occurred. PRVRPs are complex problems that combine vehicle routing and power restoration scheduling problems. The paper proposed a multi-stage optimization algorithm based on the idea of constraint injection that meets the aggressive runtime constraints necessary for disaster recovery. The algorithms were validated on benchmarks produced by the Los Alamos National Laboratory, using the infrastructure of the United States. The disaster scenarios were generated by state-of-the-art hurricane simulation tools similar to those used by the National Hurricane Center. Experimental results show that the constraint-injection algorithms can reduce the blackouts by 50% or more over field practices. Moreover, the results show that the constraint-injection algorithm using large neighborhood search over a blackbox simulator provide competitive quality and scales better than using a MIP solver on the subproblems.

Bent, Russell W [Los Alamos National Laboratory; Coffrin, Carleton [Los Alamos National Laboratory; Van Hentenryck, Pascal [BROWN UNIV.

2010-11-23T23:59:59.000Z

302

Laser Propulsion Standardization Issues  

SciTech Connect

It is a relevant issue in the research on laser propulsion that experimental results are treated seriously and that meaningful scientific comparison is possible between groups using different equipment and measurement techniques. However, critical aspects of experimental measurements are sparsely addressed in the literature. In addition, few studies so far have the benefit of independent confirmation by other laser propulsion groups. In this paper, we recommend several approaches towards standardization of published laser propulsion experiments. Such standards are particularly important for the measurement of laser ablation pulse energy, laser spot area, imparted impulse or thrust, and mass removal during ablation. Related examples are presented from experiences of an actual scientific cooperation between NU and DLR. On the basis of a given standardization, researchers may better understand and contribute their findings more clearly in the future, and compare those findings confidently with those already published in the laser propulsion literature. Relevant ISO standards are analyzed, and revised formats are recommended for application to laser propulsion studies.

Scharring, Stefan; Eckel, Hans-Albert [Institute of Technical Physics, German Aerospace Center (DLR), D-70569 Stuttgart, Pfaffenwaldring 38-40 (Germany); Roeser, Hans-Peter [Institute of Space Systems, University of Stuttgart, D-70569 Stuttgart, Pfaffenwaldring 31 (Germany); Sinko, John E. [Micro-Nano Global Center of Excellence, Nagoya University (Niue), Nagoya, Aichi, 464-8603 (Japan); Sasoh, Akihiro [Department of Aerospace Engineering, Nagoya University, Nagoya, Aichi, 464-8603 (Japan)

2010-10-08T23:59:59.000Z

303

Monitoring Battery System for Electric Vehicle, Based On "One Wire" Technology  

E-Print Network (OSTI)

Monitoring Battery System for Electric Vehicle, Based On "One Wire" Technology Javier Ibáñez Vial Santiago, Chile jdixon@ing.puc.cl Abstract-- A monitoring system for a battery powered electric vehicle (EV of the 24 batteries. Besides, the system will also allow monitoring the energy delivered by a photovoltaic

Rudnick, Hugh

304

Design of Electric Vehicles DC Traction Motor Drive System Based on Optimal Control  

Science Conference Proceedings (OSTI)

The traditional electric vehicle DC motor drive system can not automatically weaken magnetic field. This paper designs DC motor drive system which control optimally the motor to meet the requirement. The study results show that: the drive system can ... Keywords: electric vehicles, DC motor, controller, optimal control

Yan Jun

2012-12-01T23:59:59.000Z

305

Analysis of the Impact of Fuel Cell Vehicles on Energy Systems in the  

Open Energy Info (EERE)

Analysis of the Impact of Fuel Cell Vehicles on Energy Systems in the Analysis of the Impact of Fuel Cell Vehicles on Energy Systems in the Transportation Sector in Japan Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Analysis of the Impact of Fuel Cell Vehicles on Energy Systems in the Transportation Sector in Japan Agency/Company /Organization: Tohoku University Focus Area: Fuels & Efficiency, Hydrogen Topics: Analysis Tools, Policy Impacts, Policy Impacts Website: www.iaee.org/documents/Aberdeen/a02nakata.pdf Equivalent URI: cleanenergysolutions.org/content/analysis-impact-fuel-cell-vehicles-en Language: English Policies: Financial Incentives This report examines the recent advances in fuel cell vehicles. The report then evaluates the impact of such vehicles on energy systems in the transportation sector in Japan and effectiveness of government subsidies in

306

NREL: Vehicles and Fuels Research - Fuel Cell Electric Vehicles: Paving the  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicles: Paving the Way to Commercial Success Vehicles: Paving the Way to Commercial Success August 22, 2013 As nations around the world pursue sustainable transportation solutions, the hydrogen fuel cell electric vehicle (FCEV) presents a promising opportunity for consumers and automakers alike. Automakers have made steady progress reducing the cost and increasing the performance of fuel cell propulsion systems, and most major vehicle manufacturers are geared to launch FCEVs in the U.S. market between 2015 and 2020. Although fuel cell technologies are proven and effective, deployment challenges persist-particularly in terms of further reducing the cost and increasing the durability of fuel cells and getting sufficient infrastructure in place to support widespread consumer use. Researchers at the National Renewable Energy Laboratory are collaborating with industry

307

Vehicle Technologies Office: Thermal Control and System Integration  

NLE Websites -- All DOE Office Websites (Extended Search)

Thermal Control and System Integration Thermal Control and System Integration The thermal control and system integration activity focuses on issues such as the integration of motor and power control technologies and the development of advanced thermal control technologies. Thermal control is a critical element to enable power density, cost, and reliability of Power Electronics and Electric Machines (PEEM). Current hybrid electric vehicle systems typically use a dedicated 65°C coolant loop to cool the electronics and electric machines. A primary research focus is to develop cooling technologies that will enable the use of coolant temperatures of up to 105°C. Enabling the higher-temperature coolant would reduce system cost by using a single loop to cool the PEEM, internal combustion engine or fuel cell. Several candidate cooling technologies are being investigated along with the potential to reduce material and component costs through the use of more aggressive cooling. Advanced component modeling, fabrication, and manufacturing techniques are also being investigated.

308

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control. 123 figs.

Cikanek, S.R.

1994-10-25T23:59:59.000Z

309

Fuzzy logic electric vehicle regenerative antiskid braking and traction control system  

DOE Patents (OSTI)

An regenerative antiskid braking and traction control system using fuzzy logic for an electric or hybrid vehicle having a regenerative braking system operatively connected to an electric traction motor, and a separate hydraulic braking system includes sensors for monitoring present vehicle parameters and a processor, responsive to the sensors, for calculating vehicle parameters defining the vehicle behavior not directly measurable by the sensor and determining if regenerative antiskid braking control, requiring hydraulic braking control, and requiring traction control are required. The processor then employs fuzzy logic based on the determined vehicle state and provides command signals to a motor controller to control operation of the electric traction motor and to the brake controller to control fluid pressure applied at each vehicle wheel to provide the appropriate regenerative braking control, hydraulic braking control, and traction control.

Cikanek, Susan R. (Wixom, MI)

1994-01-01T23:59:59.000Z

310

A versatile simulation tool for the design and verification of military vehicle power systems  

E-Print Network (OSTI)

The design of the electric platform in military vehicles requires the ability to determine the best combination of power system components that support the desired operational abilities, while minimizing the size, weight, cost, and impact of the overall power system. Because prototypes are both time consuming, rigid, and costly, they have become inadequate for verifying system performance. By using simulations, engineers can best plan for and observe the associations between missions (including modes of operation and system scenarios) and system performance in a dynamic, realistic environment. This thesis proposes a new tool to analyze and design military vehicle platforms: the Advanced Mobile Integrated Power System (AMPS). This tool is useful for design and design verification of military vehicles due to its unique incorporation of mission-specific functionality. It allows the user ease of design with the ability to customize the vehicle power system architecture and components, while permitting full control over source and load input parameters. Simulation of programmed mission sequences allows the user to ensure that the chosen vehicle architecture can provide all of the electrical power and energy needed to support the mission, thus providing adequate design verification. The present thesis includes an introduction to vehicle power systems and an outline of the need for simulation, a description of the AMPS project and vehicle specifications, analytical and numerical models of the simulated vehicle, explanation of the power management system, description of the graphical user interface, and a simulation performed with the AMPS tool.

Lipscomb, Melissa Anne

2005-08-01T23:59:59.000Z

311

Comprehensive Technical Report, General Electric Direct-Air-Cycle Aircraft Nuclear Propulsion Program; Aircraft Nuclear Propulsion Application Studies  

SciTech Connect

This volume is one of twenty-one summarizing the Aircraft Nuclear Propulsion Program of the General Electric Company. This portion describes the studies of advanced applications of nuclear reactors that were performed, including various types of aircraft, missiles, space vehicles, ships, and portable power plants.

Comassar, S.

1962-04-30T23:59:59.000Z

312

Assessment framework for wireless V2V communication-based ITS applications; Assessment framework for wireless Vehicle-to-Vehicle communication-based Intelligent Transportation Systems applications.  

E-Print Network (OSTI)

??Inter-vehicle communication enabled by wireless technology is an emerging area of Intelligent Transportation Systems (ITS). This technology has generated great interest among automobile manufacturers and (more)

Rajiwade, Swapnil Shankar

2011-01-01T23:59:59.000Z

313

An Ultracapacitor - Battery Energy Storage System for Hybrid Electric Vehicles.  

E-Print Network (OSTI)

??The nickel metal hydride (NiMH) batteries used in most hybrid electric vehicles (HEVs) provide satisfactory performance but are quite expensive. In spite of their lower (more)

Stienecker, Adam W

2005-01-01T23:59:59.000Z

314

Impact of the Electric Vehicle on the Electric System.  

E-Print Network (OSTI)

?? Since few years the electric vehicles draw the attention. The battery technologys continual improvements and incentives from the authorities guarantee them an assured future (more)

Rousselle, Melaine

2009-01-01T23:59:59.000Z

315

ALTERNATIVE ENERGY TESTBED ELECTRIC VEHICLE AND THERMAL MANAGEMENT SYSTEM INVESTIGATION.  

E-Print Network (OSTI)

??Methodology of and details on designing, constructing, and testing an efficient low power electric vehicle for alternative energy testing purposes. Experimental analysis of the drive (more)

Gregg, Christopher B

2007-01-01T23:59:59.000Z

316

Hybrid Control System for Reversing a Multibody Vehicle.  

E-Print Network (OSTI)

?? This thesis deals with the problem of prototyping a vehicle, made up by a motorized body and two passive trailers using LOGO Mindstorms, and (more)

Bromand, Homan

2004-01-01T23:59:59.000Z

317

Pure Nuclear Fusion Bomb Propulsion  

E-Print Network (OSTI)

Recent progress towards the non-fission ignition of thermonuclear micro-explosions raises the prospect for a revival of the nuclear bomb propulsion idea, both for the fast transport of large payloads within the solar system and the launch into earth orbit without the release of fission products into the atmosphere. To reach this goal three areas of research are of importance: 1)Compact thermonuclear ignition drivers. 2)Fast ignition and deuterium burn. 3)Space-craft architecture involving magnetic insulation and GeV electrostatic potentials

Winterberg, F

2008-01-01T23:59:59.000Z

318

Electrically heated particulate filter regeneration methods and systems for hybrid vehicles  

DOE Patents (OSTI)

A control system for controlling regeneration of a particulate filter for a hybrid vehicle is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate regeneration. An engine control module controls operation of an engine of the hybrid vehicle based on the control of the current to the particulate filter.

Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI)

2010-10-12T23:59:59.000Z

319

Dynamic Reconfiguration of Photovoltaic Energy Harvesting System in Hybrid Electric Vehicles  

E-Print Network (OSTI)

Dynamic Reconfiguration of Photovoltaic Energy Harvesting System in Hybrid Electric Vehicles Yanzhi, xuelin, pedram}@usc.edu, 2 {naehyuck}@elpl.snu.ac.kr ABSTRACT Photovoltaic (PV) energy harvesting system is a promising energy source for battery replenishment in hybrid electric vehicles (HEVs.) The PV cell array

Pedram, Massoud

320

Development of a Hardware-in-the-loop Simulation System for Hybrid Electric Vehicle Performance Test  

Science Conference Proceedings (OSTI)

In order to facilitate control strategy development and performance test of hybrid electric vehicle, a hardware-in-the-loop simulation system is developed. The system is constructed with LabVIEW and PXI hardware. Hardware-in-the-loop simulation test ... Keywords: hybrid electric vehicle, hardware-in-the-loop simulation, fuel economy, exhaust emission

Yanyi Zhang, Zhenhua Jin, Haoduan Wang, Qingchun Lu

2012-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Modular Electric Vehicle Program (MEVP). Final technical report  

DOE Green Energy (OSTI)

The Modular Electric Vehicle Program (MEVP) was an EV propulsion system development program in which the technical effort was contracted by DOE to Ford Motor Company. The General Electric Company was a major subcontractor to Ford for the development of the electric subsystem. Sundstrand Power Systems was also a subcontractor to Ford, providing a modified gas turbine engine APU for emissions and performance testing as well as a preliminary design and producibility study for a Gas Turbine-APU for potential use in hybrid/electric vehicles. The four-year research and development effort was cost-shared between Ford, General Electric, Sundstrand Power Systems and DOE. The contract was awarded in response to Ford`s unsolicited proposal. The program objective was to bring electric vehicle propulsion system technology closer to commercialization by developing subsystem components which can be produced from a common design and accommodate a wide range of vehicles; i.e., modularize the components. This concept would enable industry to introduce electric vehicles into the marketplace sooner than would be accomplished via traditional designs in that the economies of mass production could be realized across a spectrum of product offerings. This would eliminate the need to dedicate the design and capital investment to a limited volume product offering which would increase consumer cost and/or lengthen the time required to realize a return on the investment.

NONE

1994-03-01T23:59:59.000Z

322

power with stationary andmotor vehicle PEM fuel cell systems  

E-Print Network (OSTI)

This investigation examines the economics of producing electricity from proton-exchange membrane (PEM) fuel cell systems under various conditions, including the possibility of using fuel cell vehicles (FCVs) to produce power when they are parked at office buildings and residences. The analysis shows that the economics of both stationary fuel cell and FCV-based power vary significantly with variations in key input variables such as the price of natural gas, electricity prices, fuel cell andreformer system costs, andfuel cell system durability levels. The central case results show that stationary PEM fuel cell systems can supply electricity for offices andhomes in California at a net savings when fuel cell system costs reach about $6000 for a 5 kW home system ($1200/kW) and $175,000 for a 250 kW commercial system ($700/kW) andassuming somewhat favorable natural gas costs of $6/GJ at residences and $4/GJ at commercial buildings. Grid-connected FCVs in commercial settings can also potentially supply electricity at competitive rates, in some cases producing significant annual benefits. Particularly attractive is the combination of net metering along with timeof-use electricity rates that allow power to be suppliedto the utility gridat the avoidedcost of central power plant generation. FCVbased power at individual residences does not appear to be as attractive, at least where FCV power can only be used directly or banked with the utility for net metering and not sold in greater quantity, due to the low load levels at these locations that provide a

Timothy Lipman; Jennifer L. Edwards; Daniel M. Kammen; Timothy E. Lipman; Jennifer L. Edwards; Daniel M. Kammen

2004-01-01T23:59:59.000Z

323

Vehicle Technologies Office: Batteries  

NLE Websites -- All DOE Office Websites (Extended Search)

Batteries Batteries battery/cell diagram Battery/Cell Diagram Batteries are important to our everyday lives and show up in various consumer electronics and appliances, from MP3 players to laptops to our vehicles. Batteries play an important role in our vehicles and are gradually becoming more and more important as they assume energy storage responsibilities from fuel in vehicle propulsion systems. A battery is a device that stores chemical energy in its active materials and converts it, on demand, into electrical energy by means of an electrochemical reaction. An electrochemical reaction is a chemical reaction involving the transfer of electrons, and it is that reaction which creates electricity. There are three main parts of a battery: the anode, cathode, and electrolyte. The anode is the "fuel" electrode which gives up electrons to the external circuit to create the flow of electrons or electricity. The cathode is the oxidizing electrode which accepts electrons in the external circuit. Finally, the electrolyte carries the electric current, as ions, inside the cell, between the anode and cathode.

324

Vehicle supervision system based on MEMS geomagnetic sensor  

Science Conference Proceedings (OSTI)

Following the economy of our country rapidly develops in recent years, more and more people possess vehicles of their own, and the number of urban vehicle is increasing fast as well. All of these directly challenge the management of urban traffic and ...

Jin Wang; Guofeng Li; Yiyi Liu; Yi Lu; Xianhu Gao; Yong Zhang; Ke Tao

2009-01-01T23:59:59.000Z

325

Blog Feed: Vehicles | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

July 20, 2010 July 20, 2010 Eco-Driving: An Everyday Way to Reduce Our Oil Dependence Global warming and oil dependence are on the front burner for good, and for good reason. Thankfully, there is something we can all do today. July 15, 2010 VP 100: President Obama Hails Electric-Vehicle Battery Plant President Obama visits Compact Power in Holland, Michigan -- one of nine new battery plants under construction as a result of the $2.4 billion in Recovery Act advanced battery and electric vehicle awards the President announced last August. July 15, 2010 UQM will manufacture electric vehicle propulsion systems like this at its new facility in Longmont, Colo. | Photo courtesy of UQ VP 100: UQM revving up electric motor production How UQM Technologies, a Colorado-based manufacturer and developer of

326

Feasibility study: utilization of landfill gas for a vehicle fuel system, Rossman's landfill, Clackamas County, Oregon  

SciTech Connect

In 1978, a landfill operator in Oregon became interested in the technical and economic feasibility of recovering the methane generated in the landfill for the refueling of vehicles. DOE awarded a grant for a site-specific feasibility study of this concept. This study investigated the expected methane yield and the development of a conceptual gas-gathering system; gas processing, compressing, and storage systems; and methane-fueled vehicle systems. Cost estimates were made for each area of study. The results of the study are presented. Reasoning that gasoline prices will continue to rise and that approximately 18,000 vehicles in the US have been converted to operate on methane, a project is proposed to use this landfill as a demonstration site to produce and process methane and to fuel a fleet (50 to 400) vehicles with the gas produced in order to obtain performance and economic data on the systems used from gas collection through vehicle operation. (LCL)

Not Available

1981-01-01T23:59:59.000Z

327

Electric vehicle fleet operations in the United States  

DOE Green Energy (OSTI)

The US Department of Energy (DOE) is actively supporting the development and commercialization of advanced electric vehicles, batteries, and propulsion systems. As part of this effort, the DOE Field Operations Program is performing commercial validation testing of electric vehicles and supporting the development of an electric vehicle infrastructure. These efforts include the evaluation of electric vehicles in baseline performance, accelerated reliability, and fleet operations testing. The baseline performance testing focuses on parameters such as range, acceleration, and battery charging. This testing, performed in conjunction with EV America, has included the baseline performance testing of 16 electric vehicle models from 1994 through 1997. During 1997, the Chevrolet S10 and Ford Ranger electric vehicles were tested. During 1998, several additional electric vehicles from original equipment manufacturers will also be baseline performance tested. This and additional information is made available to the public via the Program`s web page (http://ev.inel.gov/sop). In conjunction with industry and other groups, the Program also supports the Infrastructure Working Council in its development of electric vehicle communications, charging, health and safety, and power quality standards. The Field Operations Program continues to support the development of electric vehicles and infrastructure in conjunction with its qualified vehicle test partners: Electric Transportation Applications, and Southern California Edison. The Field Operations Program is managed by the Lockheed Martin Idaho Technologies Company at the Idaho National Engineering and Environmental Laboratory.

Francfort, J.E. [Lockheed Martin Idaho Technologies Co., Idaho Falls, ID (United States). Idaho National Engineering and Environmental Lab.; O`Hara, D. [Dept. of Energy, Washington, DC (United States)

1998-03-01T23:59:59.000Z

328

Neural Network Mapping of Magnet Based Position Sensing System for Autonomous Robotic Vehicle  

Science Conference Proceedings (OSTI)

In this paper a neural network mapping of magnet based position sensing system for an autonomous robotic vehicle. The position sensing system using magnetic markers embedded under the surface of roadway pavement. An important role of magnetic position ...

Dae---Yeong Im; Young-Jae Ryoo; Jang-Hyun Park; Hyong-Yeol Yang; Ju-Sang Lee

2007-04-01T23:59:59.000Z

329

Evaluation of a Lower-Energy Energy Storage System (LEESS) for Full-Hybrid Electric Vehicles (HEVs) (Presentation)  

DOE Green Energy (OSTI)

This presentation discusses the evaluation of a lower-energy energy storage system for full-hybrid electric vehicles.

Gonder, J.; Ireland, J.; Cosgrove, J.

2013-04-01T23:59:59.000Z

330

A survey-based type-2 fuzzy logic system for energy management in hybrid electrical vehicles  

Science Conference Proceedings (OSTI)

Hybrid electrical vehicles combine two or more energy sources (at least one electrical) to benefit from their different characteristics regarding autonomy, reversibility and dynamic response. Energy management consists in discovering an energy distribution ... Keywords: Energy management, Group decision making, Hybrid electrical vehicles, Linguistic modelling, Survey-based fuzzy logic systems, Type-2 fuzzy sets

Javier Solano Martnez; Robert I. John; Daniel Hissel; Marie-Ccile Pra

2012-05-01T23:59:59.000Z

331

Performance Study on Multilevel Hybrid Power System of Pneumatic-fuel Vehicle  

Science Conference Proceedings (OSTI)

Put forward the concept of multilevel hybrid power system of pneumatic-Fuel Vehicle, composed of the gasoline engine and pneumatic motor which is droved by the admixture of compressed air and engine exhaust gas so as to improve the dynamics. The dynamics ... Keywords: fuel-pneumatic, multilevel hybrid power vehicle, dynamics, fuel consumption

Wang Guo-ye; Zhang Juan-li; Chou Xiao-gang; Wang Jun; Zheng Chang-song

2011-01-01T23:59:59.000Z

332

Electric Vehicles (PHEV and BEV) in the German Electricity System  

NLE Websites -- All DOE Office Websites (Extended Search)

generation) or to use storage devices. Furthermore, it will be discussed whether the load profile of plug-in hybrid vehicles (PHEVs) can be controlled by an indirect energy...

333

Subsonic Tests of a Flush Air Data Sensing System Applied to a Fixed-Wing Micro Air Vehicle  

Science Conference Proceedings (OSTI)

Flush air data sensing (FADS) systems have been successfully tested on the nose tip of large manned/unmanned air vehicles. In this paper we investigate the application of a FADS system on the wing leading edge of a micro (unmanned) air vehicle (MAV) ... Keywords: Extended minimum resource allocating neural networks, Fault accommodation, Flush air data sensing systems, Micro (unmanned) air vehicle

Ihab Samy; Ian Postlethwaite; Dawei Gu

2009-03-01T23:59:59.000Z

334

Feasibility of MHD submarine propulsion  

DOE Green Energy (OSTI)

This report describes the work performed during Phase 1 and Phase 2 of the collaborative research program established between Argonne National Laboratory (ANL) and Newport News Shipbuilding and Dry Dock Company (NNS). Phase I of the program focused on the development of computer models for Magnetohydrodynamic (MHD) propulsion. Phase 2 focused on the experimental validation of the thruster performance models and the identification, through testing, of any phenomena which may impact the attractiveness of this propulsion system for shipboard applications. The report discusses in detail the work performed in Phase 2 of the program. In Phase 2, a two Tesla test facility was designed, built, and operated. The facility test loop, its components, and their design are presented. The test matrix and its rationale are discussed. Representative experimental results of the test program are presented, and are compared to computer model predictions. In general, the results of the tests and their comparison with the predictions indicate that thephenomena affecting the performance of MHD seawater thrusters are well understood and can be accurately predicted with the developed thruster computer models.

Doss, E.D. (ed.) (Argonne National Lab., IL (United States)); Sikes, W.C. (ed.) (Newport News Shipbuilding and Dry Dock Co., VA (United States))

1992-09-01T23:59:59.000Z

335

Hybrid vehicle system studies and optimized hydrogen engine design  

DOE Green Energy (OSTI)

We have done system studies of series hydrogen hybrid automobiles that approach the PNGV design goal of 34 km/liter (80 mpg), for 384 km (240 mi) and 608 km (380 mi) ranges. Our results indicate that such a vehicle appears feasible using an optimized hydrogen engine. We have evaluated the impact of various on-board storage options on fuel economy. Experiments in an available engine at the Sandia CRF demonstrated NO{sub x} emissions of 10 to 20 ppM at an equivalence ratio of 0.4, rising to about 500 ppm at 0.5 equivalence ratio using neat hydrogen. Hybrid simulation studies indicate that exhaust NO{sub x} concentrations must be less than 180 ppM to meet the 0.2 g/mile ULEV or Federal Tier II emissions regulations. LLNL has designed and fabricated a first generation optimized hydrogen engine head for use on an existing Onan engine. This head features 15:1 compression ratio, dual ignition, water cooling, two valves and open quiescent combustion chamber to minimize heat transfer losses. Initial testing shows promise of achieving an indicated efficiency of nearly 50% and emissions of less than 100 ppM NO{sub x}. Hydrocarbons and CO are to be measured, but are expected to be very low since their only source is engine lubricating oil. A successful friction reduction program on the Onan engine should result in a brake thermal efficiency of about 42% compared to today`s gasoline engines of 32%. Based on system studies requirements, the next generation engine will be about 2 liter displacement and is projected to achieve 46% brake thermal efficiency with outputs of 15 kW for cruise and 40 kW for hill climb.

Smith, J.R.; Aceves, S.

1995-04-26T23:59:59.000Z

336

Emission spectroscopy for the study of electric propulsion plasmas  

E-Print Network (OSTI)

Typical electric propulsion devices rely on the acceleration of highly ionized plasmas to produce thrust at specific impulses unattainable with state-of-the-art chemical systems. This thesis examines the use of a miniaturized ...

Matlock, Taylor Scott

2009-01-01T23:59:59.000Z

337

2001 Joint ADVISOR/PSAT Vehicle Systems Modeling User's Conference Proceedings (CD)  

DOE Green Energy (OSTI)

The 2001 Joint ADVISOR/PSAT Vehicle Systems Modeling User Conference provided an opportunity for engineers in the automotive industry and the research environment to share their experiences in vehicle systems modeling using ADVISOR and PSAT. ADVISOR and PSAT are vehicle systems modeling tools developed and supported by the National Renewable Energy Laboratory and Argonne National Laboratory respectively with the financial support of the US Department of Energy. During this conference peers presented the results of studies using the simulation tools and improvements that they have made or would like to see in the simulation tools. Focus areas of the presentations included Control Strategy, Model Validation, Optimization and Co-Simulation, Model Development, Applications, and Fuel Cell Vehicle Systems Analysis. Attendees were offered the opportunity to give feedback on future model development plans.

Markel, T.

2001-08-01T23:59:59.000Z

338

Dimensioning and configuration of EES systems for electric vehicles with boundary-conditioned adaptive scalarization  

Science Conference Proceedings (OSTI)

Electric vehicles (EVs) are widely considered as a solution for efficient, sustainable and intelligent transportation. An electrical energy storage (EES) system is the most important component in an EV in terms of performances and cost. This work proposes ...

Wanli Chang; Martin Lukasiewycz; Sebastian Steinhorst; Samarjit Chakraborty

2013-09-01T23:59:59.000Z

339

A Lightweight Observation System for Atmospheric Carbon Dioxide Concentration Using a Small Unmanned Aerial Vehicle  

Science Conference Proceedings (OSTI)

To make the investigation of the temporal and spatial variations of atmospheric CO2 in and above the planetary boundary layer more flexible and economical, a lightweight observation system using a small unmanned aerial vehicle has been developed ...

T. Watai; T. Machida; N. Ishizaki; G. Inoue

2006-05-01T23:59:59.000Z

340

Test vehicle detector characterization system for the Boeing YAL-1 airborne laser  

E-Print Network (OSTI)

The test vehicle detector characterization system provides a convenient and efficient tool for rapidly evaluating the optical sensitivity of the GAP6012, GAP100, GAP300, and GAP1000 indium gallium arsenide detectors used ...

Steininger-Holmes, Jason Thomas

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Designing sustainable heavy lift launch vehicle architectures adaptability, lock-in, and system evolution  

E-Print Network (OSTI)

Long term human space exploration depends on the development of a sustainable heavy lift launch vehicle (HLLV). But what exactly is sustainability in the context of launch systems and how can it addressed in the design ...

Silver, Matthew Robin

2005-01-01T23:59:59.000Z

342

High power battery test methods for hybrid vehicle applications  

DOE Green Energy (OSTI)

Commonly used EV battery tests are not very suitable for testing hybrid vehicle batteries, which may be primarily intended to supply vehicle acceleration power. The capacity of hybrid vehicle batteries will be relatively small, they will typically operate over a restricted range of states-of-charge, and they may seldom if ever be fully recharged. Further, hybrid propulsion system designs will commonly impose a higher regeneration content than is typical for electric vehicles. New test methods have been developed for use in characterizing battery performance and life for hybrid vehicle use. The procedures described in this paper were developed from the requirements of the government-industry cooperative Partnership for A New Generation of Vehicles (PNGV) program; however, they are expected to have broad application to the testing of energy storage devices for hybrid vehicles. The most important performance measure for a high power battery is its pulse power capability as a function of state-of-charge for both discharge and regeneration pulses. It is also important to characterize cycle life, although the {open_quote}cycles{close_quote} involved are quite different from the conventional full-discharge, full-recharge cycle commonly used for EV batteries, This paper illustrates in detail several test profiles which have been selected for PNGV battery testing, along with some sample results and lessons learned to date from the use of these test profiles. The relationship between the PNGV energy storage requirements and these tests is described so that application of the test methods can be made to other hybrid vehicle performance requirements as well. The resulting test procedures can be used to characterize the pulse power capability of high power energy storage devices including batteries and ultracapacitors, as well as the life expectancy of such devices, for either power assist or dual mode hybrid propulsion system designs.

Hunt, G.L.; Haskins, H.; Heinrich, B.; Sutula, R.

1997-11-01T23:59:59.000Z

343

Measurement Issues In Pulsed Laser Propulsion  

SciTech Connect

Various measurement techniques have been used throughout the over 40-year history of laser propulsion. Often, these approaches suffered from inconsistencies in definitions of the key parameters that define the physics of laser ablation impulse generation. Such parameters include, but are not limited to the pulse energy, spot area, imparted impulse, and ablated mass. The limits and characteristics of common measurement techniques in each of these areas will be explored as they relate to laser propulsion. The idea of establishing some standardization system for laser propulsion data is introduced in this paper, so that reported results may be considered and studied by the general community with more certain understanding of particular merits and limitations. In particular, it is the intention to propose a minimum set of requirements a literature study should meet. Some international standards for measurements are already published, but modifications or revisions of such standards may be necessary for application to laser ablation propulsion. Issues relating to development of standards will be discussed, as well as some examples of specific experimental circumstances in which standardization would have prevented misinterpretation or misuse of past data.

Sinko, John E. [Micro-Nano Global Center of Excellence, Nagoya University (Niue), Nagoya, Aichi (Japan); Scharring, Stefan; Eckel, Hans-Albert [Institute of Technical Physics, German Aerospace Center (DLR), D-70569 Stuttgart, Pfaffenwaldring 38-40 (Germany); Roeser, Hans-Peter [Institute of Space Systems, University of Stuttgart, D-70569 Stuttgart, Pfaffenwaldring 31 (Germany); Sasoh, Akihiro [Department of Aerospace Engineering, Nagoya University, Nagoya, Aichi (Japan)

2010-05-06T23:59:59.000Z

344

Nuclear reactor power for an electrically powered orbital transfer vehicle  

DOE Green Energy (OSTI)

To help determine the systems requirements for a 300-kWe space nuclear reactor power system, a mission and spacecraft have been examined which utilize electric propulsion and this nuclear reactor power for multiple transfers of cargo between low Earth orbit (LEO) and geosynchronous Earth orbit (GEO). A propulsion system employing ion thrusters and xenon propellant was selected. Propellant and thrusters are replaced after each sortie to GEO. The mass of the Orbital Transfer Vehicle (OTV), empty and dry, is 11,000 kg; nominal propellant load is 5000 kg. The OTV operates between a circular orbit at 925 km altitude, 28.5 deg inclination, and GEO. Cargo is brought to the OTV by Shuttle and an Orbital Maneuvering Vehicle (OMV); the OTV then takes it to GEO. The OTV can also bring cargo back from GEO, for transfer by OMV to the Shuttle. OTV propellant is resupplied and the ion thrusters are replaced by the OMV before each trip to GEO. At the end of mission life, the OTV's electric propulsion is used to place it in a heliocentric orbit so that the reactor will not return to Earth. The nominal cargo capability to GEO is 6000 kg with a transit time of 120 days; 1350 kg can be transferred in 90 days, and 14,300 kg in 240 days. These capabilities can be considerably increased by using separate Shuttle launches to bring up propellant and cargo, or by changing to mercury propellant.

Jaffe, L.; Beatty, R.; Bhandari, P.; Chow, E.; Deininger, W.; Ewell, R.; Fujita, T.; Grossman, M.; Kia, T.; Nesmith, B.

1987-01-01T23:59:59.000Z

345

Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency  

NLE Websites -- All DOE Office Websites (Extended Search)

Maximizing Alternative Maximizing Alternative Fuel Vehicle Efficiency to someone by E-mail Share Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency on Facebook Tweet about Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency on Twitter Bookmark Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency on Google Bookmark Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency on Delicious Rank Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency on Digg Find More places to share Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines

346

Sensor network based vehicle classification and license plate identification system  

Science Conference Proceedings (OSTI)

Typically, for energy efficiency and scalability purposes, sensor networks have been used in the context of environmental and traffic monitoring applications in which operations at the sensor level are not computationally intensive. But increasingly, ... Keywords: acoustic vehicle classification, license plate detection, seismic, wireless sensor networks

Jan Frigo; Vinod Kulathumani; Sean Brennan; Ed Rosten; Eric Raby

2009-06-01T23:59:59.000Z

347

Future Armored Resupply Vehicle (FARV) conceptual fuel system design. Final report  

Science Conference Proceedings (OSTI)

This document presents an idealized automated fuel system applicable to unique requirements. The system accepts fuel at high rates, transports fuel in a battlefield environment, and supplies fuel to a vehicle equipped to receive it without exposing the crew to small arms fire. The fuel system design incorporates controls and mechanisms which compensate for battle damage and irregularities found in previous fuel systems for tracked vehicles. The fuel system is a functional part of a ReArm/Resupply system which also handles munitions and liquid propellant, automatically.

Daubert, R.R.; Fisher, E.C.; Moore, W.K.; Munro, N.C.

1995-03-01T23:59:59.000Z

348

High voltage bus and auxiliary heater control system for an electric or hybrid vehicle  

DOE Green Energy (OSTI)

A control system for an electric or hybrid electric vehicle includes a vehicle system controller and a control circuit having an electric immersion heater. The heater is electrically connected to the vehicle's high voltage bus and is thermally coupled to a coolant loop containing a heater core for the vehicle's climate control system. The system controller responds to cabin heat requests from the climate control system by generating a pulse width modulated signal that is used by the control circuit to operate the heater at a duty cycle appropriate for the amount of cabin heating requested. The control system also uses the heater to dissipate excess energy produced by an auxiliary power unit and to provide electric braking when regenerative braking is not desirable and manual braking is not necessary. The control system further utilizes the heater to provide a safe discharge of a bank of energy storage capacitors following disconnection of the battery or one of the high voltage connectors used to transmit high voltage operating power to the various vehicle systems. The control circuit includes a high voltage clamping circuit that monitors the voltage on the bus and operates the heater to clamp down the bus voltage when it exceeds a pre-selected maximum voltage. The control system can also be used to phase in operation of the heater when the bus voltage exceeds a lower threshold voltage and can be used to phase out the auxiliary power unit charging and regenerative braking when the battery becomes fully charged.

Murty, Balarama Vempaty (West Bloomfield, MI)

2000-01-01T23:59:59.000Z

349

The design and feasibility of a 10 mN chemical space propulsion thruster.  

E-Print Network (OSTI)

??This thesis discusses the design of a ten milli Newton chemical propulsion system for providing approximately 200 m/s delta velocity to a five kg satellite. (more)

Bruccoleri, Alexander Robert

2009-01-01T23:59:59.000Z

350

Evaluation of oxygen-enrichment system for alternative fuel vehicles  

DOE Green Energy (OSTI)

This report presents results on the reduction in exhaust emissions achieved by using oxygen-enriched intake air on a flexible fuel vehicle (FFV) that used Indolene and M85 as test fuels. The standard federal test procedure (FTP) and the US Environmental Protection Agency`s (EPA`s) off-cycle (REP05) test were followed. The report also provides a review of literature on the oxygen membrane device and design considerations. It presents information on the sources and contributions of cold-phase emissions to the overall exhaust emissions from light-duty vehicles (LDVs) and on the various emission standards and present-day control technologies under consideration. The effects of oxygen-enriched intake air on FTP and off-cycle emissions are discussed on the basis of test results. Conclusions are drawn from the results and discussion, and different approaches for the practical application of this technology in LDVs are recommended.

Poola, R.B.; Sekar, R.R.; Ng, H.K.

1995-12-01T23:59:59.000Z

351

Characterization of Fuel Cell Vehicle Duty Cycle Elements  

DOE Green Energy (OSTI)

This report covers research done as part of US Department of Energy contract DE-PS26-99FT14299 with the Fuel Cell Propulsion Institute on the fuel cell RATLER{trademark} vehicle, Lurch, as well as work done on the fuel cells designed for the vehicle. All work contained within this report was conducted at the Robotic Vehicle Range at Sandia National Laboratories in Albuquerque New Mexico. The research conducted includes characterization of the duty cycle of the robotic vehicle. This covers characterization of its various abilities such as hill climbing and descending, spin-turns, and driving on level ground. This was accomplished with the use of current sensors placed in the vehicle in conjunction with a Data Acquisition System (DAS), which was also created at Sandia Labs. Characterization of the two fuel cells was accomplished using various measuring instruments and techniques that will be discussed later in the report. A Statement of Work for this effort is included in Appendix A. This effort was able to complete characterization of vehicle duty cycle elements using battery power, but problems with the fuel cell control systems prevented completion of the characterization of the fuel cell operation on the benchtop and in the vehicle. Some data was obtained characterizing the fuel cell current-voltage performance and thermal rise rate by bypassing elements of the control system.

MAISH, ALEXANDER B.; NILAN, ERIC J.; BACA, PAUL M.

2002-12-01T23:59:59.000Z

352

Sodium sulfur electric vehicle battery engineering program final report, September 2, 1986--June 15, 1993  

DOE Green Energy (OSTI)

In September 1986 a contract was signed between Chloride Silent Power Limited (CSPL) and Sandia National Laboratories (SNL) entitled ``Sodium Sulfur Electric Vehicle Battery Engineering Program``. The aim of the cost shared program was to advance the state of the art of sodium sulfur batteries for electric vehicle propulsion. Initially, the work statement was non-specific in regard to the vehicle to be used as the design and test platform. Under a separate contract with the DOE, Ford Motor Company was designing an advanced electric vehicle drive system. This program, called the ETX II, used a modified Aerostar van for its platform. In 1987, the ETX II vehicle was adopted for the purposes of this contract. This report details the development and testing of a series of battery designs and concepts which led to the testing, in the US, of three substantial battery deliverables.

NONE

1993-06-01T23:59:59.000Z

353

Technical System Targets: Onboard Hydrogen Storage for Light-Duty Fuel Cell Vehicles  

E-Print Network (OSTI)

is to be determined. e Onboard efficiency is the energy efficiency for delivering hydrogen from the storage systemTechnical System Targets: Onboard Hydrogen Storage for Light-Duty Fuel Cell Vehicles a Storage to the powerplant divided by the total mass/volume of the complete storage system, including all stored hydrogen

354

Fission-Based Electric Propulsion for Interstellar Precursor Missions  

DOE Green Energy (OSTI)

This paper reviews the technology options for a fission-based electric propulsion system for interstellar precursor missions. To achieve a total {Delta}V of more than 100 km/s in less than a decade of thrusting with an electric propulsion system of 10,000s Isp requires a specific mass for the power system of less than 35 kg/kWe. Three possible configurations are described: (1) a UZrH-fueled,NaK-cooled reactor with a steam Rankine conversion system,(2) a UN-fueled gas-cooled reactor with a recuperated Brayton conversion system, and (3) a UN-fueled heat pipe-cooled reactor with a recuperated Brayton conversion system. All three of these systems have the potential to meet the specific mass requirements for interstellar precursor missions in the near term. Advanced versions of a fission-based electric propulsion system might travel as much as several light years in 200 years.

HOUTS,MICHAEL G.; LENARD,ROGER X.; LIPINSKI,RONALD J.; PATTON,BRUCE; POSTON,DAVID; WRIGHT,STEVEN A.

1999-11-03T23:59:59.000Z

355

Propulsion engineering study for small-scale Mars missions  

DOE Green Energy (OSTI)

Rocket propulsion options for small-scale Mars missions are presented and compared, particularly for the terminal landing maneuver and for sample return. Mars landing has a low propulsive {Delta}v requirement on a {approximately}1-minute time scale, but at a high acceleration. High thrust/weight liquid rocket technologies, or advanced pulse-capable solids, developed during the past decade for missile defense, are therefore more appropriate for small Mars landers than are conventional space propulsion technologies. The advanced liquid systems are characterize by compact lightweight thrusters having high chamber pressures and short lifetimes. Blowdown or regulated pressure-fed operation can satisfy the Mars landing requirement, but hardware mass can be reduced by using pumps. Aggressive terminal landing propulsion designs can enable post-landing hop maneuvers for some surface mobility. The Mars sample return mission requires a small high performance launcher having either solid motors or miniature pump-fed engines. Terminal propulsion for 100 kg Mars landers is within the realm of flight-proven thruster designs, but custom tankage is desirable. Landers on a 10 kg scale also are feasible, using technology that has been demonstrated but not previously flown in space. The number of sources and the selection of components are extremely limited on this smallest scale, so some customized hardware is required. A key characteristic of kilogram-scale propulsion is that gas jets are much lighter than liquid thrusters for reaction control. The mass and volume of tanks for inert gas can be eliminated by systems which generate gas as needed from a liquid or a solid, but these have virtually no space flight history. Mars return propulsion is a major engineering challenge; earth launch is the only previously-solved propulsion problem requiring similar or greater performance.

Whitehead, J.

1995-09-12T23:59:59.000Z

356

Evaluation of aftermarket fuel delivery systems for natural gas and LPG vehicles  

DOE Green Energy (OSTI)

This study was designed to evaluate the effectiveness of aftermarket fuel delivery systems for vehicles fueled by compressed natural gas (CNG) and liquefied petroleum gas (LPG). Most of the CNG and LPG vehicles studied were converted to the alternative fuel after purchase. There are wide variations in the quality of the conversion hardware and the installation. This leads to questions about the overall quality of the converted vehicles, in terms of emissions, safety, and performance. There is a considerable body of emissions data for converted light-duty vehicles, and a smaller amount for medium- and heavy-duty vehicles. However, very few of these data involve real world conditions, and there is growing concern about in-use emissions. This report also attempts to assess factors that could allow in-use emissions to vary from the best-case'' results normally reported. The study also addresses issues of fuel supply, fuel composition, performance, safety, and warranty waivers. The report is based on an extensive literature and product survey and on the author's experience with fuel delivery systems for light-duty vehicles.

Willson, B. (Colorado State Univ., Fort Collins, CO (United States))

1992-09-01T23:59:59.000Z

357

Evaluation of aftermarket fuel delivery systems for natural gas and LPG vehicles  

DOE Green Energy (OSTI)

This study was designed to evaluate the effectiveness of aftermarket fuel delivery systems for vehicles fueled by compressed natural gas (CNG) and liquefied petroleum gas (LPG). Most of the CNG and LPG vehicles studied were converted to the alternative fuel after purchase. There are wide variations in the quality of the conversion hardware and the installation. This leads to questions about the overall quality of the converted vehicles, in terms of emissions, safety, and performance. There is a considerable body of emissions data for converted light-duty vehicles, and a smaller amount for medium- and heavy-duty vehicles. However, very few of these data involve real world conditions, and there is growing concern about in-use emissions. This report also attempts to assess factors that could allow in-use emissions to vary from the ``best-case`` results normally reported. The study also addresses issues of fuel supply, fuel composition, performance, safety, and warranty waivers. The report is based on an extensive literature and product survey and on the author`s experience with fuel delivery systems for light-duty vehicles.

Willson, B. [Colorado State Univ., Fort Collins, CO (United States)

1992-09-01T23:59:59.000Z

358

Evaluation of aftermarket fuel delivery systems for natural gas and LPG vehicles  

SciTech Connect

This study was designed to evaluate the effectiveness of aftermarket fuel delivery systems for vehicles fueled by compressed natural gas (CNG) and liquefied petroleum gas (LPG). Most of the CNG and LPG vehicles studied were converted to the alternative fuel after purchase. There are wide variations in the quality of the conversion hardware and the installation. This leads to questions about the overall quality of the converted vehicles, in terms of emissions, safety, and performance. There is a considerable body of emissions data for converted light-duty vehicles, and a smaller amount for medium- and heavy-duty vehicles. However, very few of these data involve real world conditions, and there is growing concern about in-use emissions. This report also attempts to assess factors that could allow in-use emissions to vary from the best-case'' results normally reported. The study also addresses issues of fuel supply, fuel composition, performance, safety, and warranty waivers. The report is based on an extensive literature and product survey and on the author's experience with fuel delivery systems for light-duty vehicles.

Willson, B. (Colorado State Univ., Fort Collins, CO (United States))

1992-09-01T23:59:59.000Z

359

Engineering Challenges in Antiproton Triggered Fusion Propulsion  

SciTech Connect

During the last decade antiproton triggered fusion propulsion has been investigated as a method for achieving high specific impulse, high thrust in a nuclear pulse propulsion system. In general the antiprotons are injected into a pellet containing fusion fuel with a small amount of fissionable material (i.e., an amount less than the critical mass) where the products from the fission are then used to trigger a fusion reaction. Initial calculations and simulations indicate that if magnetically insulated inertial confinement fusion is used that the pellets should result in a specific impulse of between 100,000 and 300,000 seconds at high thrust. The engineering challenges associated with this propulsion system are significant. For example, the antiprotons must be precisely focused. The pellet must be designed to contain the fission and initial fusion products and this will require strong magnetic fields. The fusion fuel must be contained for a sufficiently long time to effectively release the fusion energy, and the payload must be shielded from the radiation, especially the excess neutrons emitted, in addition to many other particles. We will review the recent progress, possible engineering solutions and the potential performance of these systems.

Cassenti, Brice [Department. of Engineering and Science, Rensselaer Polytechnic Institute, 275 Windsor Avenue, Hattford, CT 06120 (United States); Kammash, Terry [Nuclear Engineering Department, University of Michigan, Ann Arbor, MI 48109 (United States)

2008-01-21T23:59:59.000Z

360

Hybrid Vehicle Program. Final report  

DOE Green Energy (OSTI)

This report summarizes the activities on the Hybrid Vehicle Program. The program objectives and the vehicle specifications are reviewed. The Hybrid Vehicle has been designed so that maximum use can be made of existing production components with a minimum compromise to program goals. The program status as of the February 9-10 Hardware Test Review is presented, and discussions of the vehicle subsystem, the hybrid propulsion subsystem, the battery subsystem, and the test mule programs are included. Other program aspects included are quality assurance and support equipment. 16 references, 132 figures, 47 tables.

None

1984-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Overview of electrochemical power sources for electric and hybrid-electric vehicles.  

DOE Green Energy (OSTI)

Electric and hybrid-electric vehicles are being developed and commercialized around the world at a rate never before seen. These efforts are driven by the prospect of vehicles with lower emissions and higher fuel efficiencies. The widespread adaptation of such vehicles promises a cleaner environment and a reduction in the rate of accumulation of greenhouse gases, Critical to the success of this technology is the use of electrochemical power sources such as batteries and fuel cells, which can convert chemical energy to electrical energy more efficiently and quietly than internal combustion engines. This overview will concentrate on the work being conducted in the US to develop advanced propulsion systems for the electric and hybrid vehicles, This work is spearheaded by the US Advanced Battery Consortium (USABC) for electric vehicles and the Partnership for a New Generation of Vehicle (PNGV) for hybrid-electric vehicles, both of which can be read about on the world wide web (www.uscar.tom). As is commonly known, electric vehicles rely strictly on batteries as their source of power. Hybrid-electric vehicles, however, have a dual source of power. An internal combustion engine or eventually a fuel cell supplies the vehicle with power at a relatively constant rate. A battery pack (much smaller than a typical electric-vehicle battery pack) provides the vehicle with its fast transient power requirements such as during acceleration. This hybrid arrangement maximizes vehicle fuel efficiency. Electric and hybrid-electric vehicles will also be able to convert the vehicle's change in momentum during braking into electrical energy and store it in its battery pack (instead of lose the energy as heat). This process, known as regenerative braking, will add to the vehicle's fuel efficiency in an urban environment.

Dees, D. W.

1999-02-12T23:59:59.000Z

362

Fluidic electrodynamics: Approach to electromagnetic propulsion  

Science Conference Proceedings (OSTI)

We report on a new methodological approach to electrodynamics based on a fluidic viewpoint. We develop a systematic approach establishing analogies between physical magnitudes and isomorphism (structure-preserving mappings) between systems of equations. This methodological approach allows us to give a general expression for the hydromotive force, thus re-obtaining the Navier-Stokes equation departing from the appropriate electromotive force. From this ground we offer a fluidic approach to different kinds of issues with interest in propulsion, e.g., the force exerted by a charged particle on a body carrying current; the magnetic force between two parallel currents; the Magnus's force. It is shown how the intermingle between the fluid vector fields and electromagnetic fields leads to new insights on their dynamics. The new concepts introduced in this work suggest possible applications to electromagnetic (EM) propulsion devices and the mastery of the principles of producing electric fields of required configuration in plasma medium.

Martins, Alexandre A.; Pinheiro, Mario J. [Institute for Plasmas and Nuclear Fusion and Instituto Superior Tecnico Lisboa, Portugal 351.1.21.841.92.43 (Portugal); Department of Physics and Institute for Plasmas and Nuclear Fusion and Instituto Superior Tecnico Lisboa, Portugal 351.1.21.841.93.22 (Portugal)

2009-03-16T23:59:59.000Z

363

2013 Annual Planning Summary for the Naval Nuclear Propulsion...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Naval Nuclear Propulsion Program 2013 Annual Planning Summary for the Naval Nuclear Propulsion Program 2013 Annual Planning Summary for the Naval Nuclear Propulsion Program The...

364

Electric and Hybrid Vehicle System Research and Development Project: Hybrid Vehicle Potential Assessment. Volume VI. Cost analysis  

DOE Green Energy (OSTI)

The purpose of the cost analysis is to determine the economic feasibility of a variety of hybrid vehicles with respect to conventional vehicles specifically designed for the same duty cycle defined by the mission analysis. Several different hybrid configurations including parallel, parallel-flywheel, and series vehicles were evaluated. The ramifications of incorporating examples of advanced batteries, these being the advanced lead-acid, nickel-zinc, and sodium sulfur were also investigated. Vehicles were specifically designed with these batteries and for the driving cycles specified by the mission. Simulated operation on the missions yielded the energy consumption (petroleum and/or electricity) over the driving cycles. It was concluded that: in the event that gasoline prices reach $2.50 to $3.00/gal, hybrid vehicles in many applications will become economically competitive with conventional vehicles without subsidization; in some commercial applications hybrid vehicles could be economically competitive, when the gasoline price ranges from $1.20 to $1.50/gal. The cost per kWh per cycle of the advanced batteries is much more important economically than the specific energy; the series hybrid vehicles were found to be more expensive in comparison to the parallel or parallel-flywheel hybrids when designed as passenger vehicles; and hybrid vehicles designed for private use could become economically competitive and displace up to 50% of the fuel normally used on that mission if subsidies of $500 to $2000 were supplied to the owner/operator. (LCL)

Hardy, K.S.

1979-09-30T23:59:59.000Z

365

The Chameleon Solid Rocket Propulsion Model  

SciTech Connect

The Khoury and Weltman (2004a and 2004b) Chameleon Model presents an addition to the gravitation force and was shown by the author (Robertson, 2009a and 2009b) to present a new means by which one can view other forces in the Universe. The Chameleon Model is basically a density-dependent model and while the idea is not new, this model is novel in that densities in the Universe to include the vacuum of space are viewed as scalar fields. Such an analogy gives the Chameleon scalar field, dark energy/dark matter like characteristics; fitting well within cosmological expansion theories. In respect to this forum, in this paper, it is shown how the Chameleon Model can be used to derive the thrust of a solid rocket motor. This presents a first step toward the development of new propulsion models using density variations verse mass ejection as the mechanism for thrust. Further, through the Chameleon Model connection, these new propulsion models can be tied to dark energy/dark matter toward new space propulsion systems utilizing the vacuum scalar field in a way understandable by engineers, the key toward the development of such systems. This paper provides corrections to the Chameleon rocket model in Robertson (2009b).

Robertson, Glen A. [Institute for Advanced Studies in the Space, Propulsion and Energy Sciences, 265 Ita Ann, Madison, AL 35757 (United States)

2010-01-28T23:59:59.000Z

366

Innovative Confinement Concepts Workshop 2000 (Book of Abstracts)  

E-Print Network (OSTI)

Nuclear Fusion Reactor Space Propulsion Vehicle Concept forNuclear Fusion Reactor Space Propulsion Vehicle Concept forfusion reactor-based space propulsion system is proposed as

Celata, Christine; Accelerator and Fusion Research Staff

2000-01-01T23:59:59.000Z

367

Development of a dedicated ethanol ultra-low emission vehicle (ULEV) system design  

DOE Green Energy (OSTI)

The objective of this 3.5 year project is to develop a commercially competitive vehicle powered by ethanol (or ethanol blend) that can meet California`s ultra-low emission vehicle (ULEV) standards and equivalent corporate average fuel economy (CAFE) energy efficiency for a light-duty passenger car application. The definition of commercially competitive is independent of fuel cost, but does include technical requirements for competitive power, performance, refueling times, vehicle range, driveability, fuel handling safety, and overall emissions performance. This report summarizes a system design study completed after six months of effort on this project. The design study resulted in recommendations for ethanol-fuel blends that shall be tested for engine low-temperature cold-start performance and other criteria. The study also describes three changes to the engine, and two other changes to the vehicle to improve low-temperature starting, efficiency, and emissions. The three engine changes are to increase the compression ratio, to replace the standard fuel injectors with fine spray injectors, and to replace the powertrain controller. The two other vehicle changes involve the fuel tank and the aftertreatment system. The fuel tank will likely need to be replaced to reduce evaporative emissions. In addition to changes in the main catalyst, supplemental aftertreatment systems will be analyzed to reduce emissions before the main catalyst reaches operating temperature.

Bourn, G.; Callahan, T.; Dodge, L.; Mulik, J.; Naegeli, D.; Shouse, K.; Smith, L.; Whitney, K. [Southwest Research Inst., San Antonio, TX (United States)

1995-02-01T23:59:59.000Z

368

Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Book)  

DOE Green Energy (OSTI)

Today's fleets are increasingly interested in medium-duty and heavy-duty vehicles that use alternative fuels or advanced technologies that can help reduce operating costs, meet emissions requirements, improve fleet sustainability, and support U.S. energy independence. Vehicle and engine manufacturers are responding to this interest with a wide range of options across a steadily growing number of vehicle applications. This guide provides an overview of alternative fuel power systems?including engines, microturbines, electric motors, and fuel cells?and hybrid propulsion systems. The guide also offers a list of individual medium- and heavy-duty vehicle models listed by application, along with associated manufacturer contact information, fuel type(s), power source(s), and related information.

Not Available

2013-08-01T23:59:59.000Z

369

Modeling and control of a biorobotic autonomous underwater vehicle  

E-Print Network (OSTI)

Current research into Autonomous Underwater Vehicles (AUVs) has included work on biologically inspired propulsion mechanisms, for instance flapping foils. The first aim of this thesis is to develop an accurate non-linear ...

Booth, William Duncan Lewis

2006-01-01T23:59:59.000Z

370

Magnetized target fusion and fusion propulsion.  

DOE Green Energy (OSTI)

Magnetized target fusion (MTF) is a thermonuclear fusion concept that is intermediate between the two mainline approaches, magnetic confinement and inertial confinement fusion (MCF and ICF). MTF incorporates some aspects of each and offers advantages over each of the mainline approaches. First, it provides a means of reducing the driver power requirements, thereby admitting a wider range of drivers than ICF. Second, the magnetic field is only used for insulation, not confinement, and the plasma is wall confined, so that plasma instabilities are traded in for hydrodynamic instabilities. However, the degree of compression required to reach fusion conditions is lower than for ICF, so that hydrodynamic instabilities are much less threatening. The standoff driver innovation proposes to dynamically form the target plasma and a gaseous shell that compresses and confines the target plasma. Therefore, fusion target fabrication is traded in for a multiplicity of plasma guns, which must work in synchrony. The standoff driver embodiment of MTF leads to a fusion propulsion system concept that is potentially compact and lightweight. We will discuss the underlying physics of MTF and some of the details of the fusion propulsion concept using the standoff driver approach. We discuss here the optimization of an MTF target design for space propulsion.

Kirkpatrick, R. C. (Ronald C.)

2001-01-01T23:59:59.000Z

371

High voltage bus and auxiliary heater control system for an electric or hybrid vehicle  

DOE Patents (OSTI)

A control system for an electric or hybrid electric vehicle includes a vehicle system controller and a control circuit having an electric immersion heater. The heater is electrically connected to the vehicle's high voltage bus and is thermally coupled to a coolant loop containing a heater core for the vehicle's climate control system. The system controller responds to cabin heat requests from the climate control system by generating a pulse width modulated signal that is used by the control circuit to operate the heater at a duty cycle appropriate for the amount of cabin heating requested. The control system also uses the heater to dissipate excess energy produced by an auxiliary power unit and to provide electric braking when regenerative braking is not desirable and manual braking is not necessary. The control system further utilizes the heater to provide a safe discharge of a bank of energy storage capacitors following disconnection of the battery or one of the high voltage connectors used to transmit high voltage operating power to the various vehicle systems. The control circuit includes a high voltage clamping circuit that monitors the voltage on the bus and operates the heater to clamp down the bus voltage when it exceeds a pre-selected maximum voltage. The control system can also be used to phase in operation of the heater when the bus voltage exceeds a lower threshold voltage and can be used to phase out the auxiliary power unit charging and regenerative braking when the battery becomes fully charged.

Murty, Balarama Vempaty (West Bloomfield, MI)

2000-01-01T23:59:59.000Z

372

Argonne Transportation Technology R&D Center - Experts - Vehicle Systems  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicle Systems Experts Vehicle Systems Experts Click on a highlighted name for a full résumé. Ann Schlenker, Section Leader e-mail: aschlenker@anl.gov MS, Environmental/Civil Engineering, University of Michigan-Ann Arbor BS, Environmental/Civil Engineering, University of Michigan-Ann Arbor 30+ years comprehensive engineering expertise in the automobile industry including research, product development, program management, quality, regulatory and policy development 1 patent Glenn Keller, Vehicle Testing Activities Manager e-mail: gkeller@anl.gov MBA, Finance and Marketing, University of Michigan BS, Mechanical Engineering, Illinois Institute of Technology 30+ years' experience in automotive engine design & development, carline product planning, and technical consulting management

373

Advisor 2.0: A Second-Generation Advanced Vehicle Simulator for Systems Analysis  

DOE Green Energy (OSTI)

The National Renewable Energy Laboratory has recently publicly released its second-generation advanced vehicle simulator called ADVISOR 2.0. This software program was initially developed four years ago, and after several years of in-house usage and evolution, the tool is now available to the public through a new vehicle systems analysis World Wide Web page. ADVISOR has been applied to many different systems analysis problems, such as helping to develop the SAE J1711 test procedure for hybrid vehicles and helping to evaluate new technologies as part of the Partnership for a New Generation of Vehicles (PNGV) technology selection process. The model has been and will continue to be benchmarked and validated with other models and with real vehicle test data. After two months of being available on the Web, more than 100 users have downloaded ADVISOR. ADVISOR 2.0 has many new features, including an easy-to-use graphical user interface, a detailed exhaust aftertreatment thermal model, and complete browser-based documentation. Future work will include adding to the library of components available in ADVISOR, including optimization functionality, and linking with a more detailed fuel cell model.

Wipke, K.; Cuddy, M.; Bharathan, D.; Burch, S.; Johnson, V.; Markel, A.; Sprik, S.

1999-03-23T23:59:59.000Z

374

Evaluating the impact of advanced vehicle and fuel technologies in U.S. light duty vehicle fleet  

E-Print Network (OSTI)

The unrelenting increase in oil use by the U.S. light-duty vehicle (LDV) fleet presents an extremely challenging energy and environmental problem. A variety of propulsion technologies and fuels have the promise to reduce ...

Bandivadekar, Anup P

2008-01-01T23:59:59.000Z

375

Vehicle Technologies Office: Thermal Control and System Integration  

NLE Websites -- All DOE Office Websites (Extended Search)

Thermal Control and System Integration The thermal control and system integration activity focuses on issues such as the integration of motor and power control technologies and the...

376

Method for controlling exhaust gas heat recovery systems in vehicles  

DOE Patents (OSTI)

A method of operating a vehicle including an engine, a transmission, an exhaust gas heat recovery (EGHR) heat exchanger, and an oil-to-water heat exchanger providing selective heat-exchange communication between the engine and transmission. The method includes controlling a two-way valve, which is configured to be set to one of an engine position and a transmission position. The engine position allows heat-exchange communication between the EGHR heat exchanger and the engine, but does not allow heat-exchange communication between the EGHR heat exchanger and the oil-to-water heat exchanger. The transmission position allows heat-exchange communication between the EGHR heat exchanger, the oil-to-water heat exchanger, and the engine. The method also includes monitoring an ambient air temperature and comparing the monitored ambient air temperature to a predetermined cold ambient temperature. If the monitored ambient air temperature is greater than the predetermined cold ambient temperature, the two-way valve is set to the transmission position.

Spohn, Brian L.; Claypole, George M.; Starr, Richard D

2013-06-11T23:59:59.000Z

377

A Compact Wireless Charging System for Electric Vehicles  

Science Conference Proceedings (OSTI)

In this paper, a compact high efficiency wireless power transfer system has been designed and developed. The detailed gate drive design, cooling system design, power stage development, and system assembling are presented. The successful tests verified the feasibility of wireless power transfer system to achieve over-all 90% efficiency.

Ning, Puqi [ORNL; Miller, John M [ORNL; Onar, Omer C [ORNL; White, Cliff P [ORNL

2013-01-01T23:59:59.000Z

378

Heavy Vehicle Systems Optimization 2003 Annual Progress Report  

NLE Websites -- All DOE Office Websites (Extended Search)

... 55 A. Cooling Fan and System Performance and Efficiency Improvements Caterpillar Incorporated; R.L....

379

Baseline and verification tests of the electric vehicle associates' current fare station wagon. Final test report, March 27, 1980-November 6, 1981  

DOE Green Energy (OSTI)

The EVA Current Fare Wagon was manufactured by Electric Vehicle Associates, Incorporated (EVA) of Cleveland, Ohio. It is now available from Lectra Motors Corp. of Las Vegas, Nevada. The vehicle was tested under the direction of MERADCOM from 27 March 1980 to 6 November 1981. The tests are part of a Department of Energy project to assess advances in electric vehicle design. This report presents the performance test results on the EVA Current Fare Wagon. The EVA Current Fare Wagon is a 1980 Ford Fairmont station wagon which has been converted to an electric vehicle. The propulsion system is made up of a Cableform controller, a series-wound 30-hp Reliance Electric Motor, and 22 6-V lead-acid batteries. The Current Fare Wagon is also equipped with regenerative braking. Further details of the vehicle are given in the Vehicle Summary Data Sheet, Appendix A. The results of this testing are given in Table 1.

Dowgiallo, E.J. Jr.; Chapman, R.D.

1983-01-01T23:59:59.000Z

380

Study on Regenerative Brake Method of Hybrid Electric Drive System of Armored Vehicle  

Science Conference Proceedings (OSTI)

Aiming at characteristics of regenerative brake of hybrid electric drive system of tracked armored vehicle, mechanism of regenerative brake by pulse width modulation is in-depth analyzed, motor speed, brake current, feedback current, feedback energy ... Keywords: hybrid electric drive, motor, regenerative brake

Li Hua; Zhong Meng-chun; Zhang Jian; Xu Da; Lin Hai

2011-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

DESIGN OF SMALL SCALE GAS TURBINE SYSTEMS FOR UNMANNED-AERIAL VEHICLES  

E-Print Network (OSTI)

DESIGN OF SMALL SCALE GAS TURBINE SYSTEMS FOR UNMANNED-AERIAL VEHICLES (AERSP 597/497-K) SPRING 814 865 9871 cxc11@psu.edu Summary : The proposed course is a three-credit gas turbine design course will be evaluated against (agreed) deadlines by the instructor. A number of lecturers from the gas turbine industry

Camci, Cengiz

382

Optimal Energy Management for a Hybrid Energy Storage System for Electric Vehicles Based on  

E-Print Network (OSTI)

}@lea.uni-paderborn.de Abstract--For electric and hybrid electric cars, commonly nickel-metal hydride and lithium-ion batteries. The BMW Mini-E is an all electric powered car field-tested in the United States, United KingdomOptimal Energy Management for a Hybrid Energy Storage System for Electric Vehicles Based

Noé, Reinhold

383

Economic Implications of Net Metering for Stationary and Motor Vehicle Fuel Cell Systems in California  

E-Print Network (OSTI)

); and · Similarly, use of PEM fuel cell waste heat for hot water heating would require careful integration with hot consider cogeneration of hot water to be a potential competitive advantage of stationary fuel cellsPWP-092 Economic Implications of Net Metering for Stationary and Motor Vehicle Fuel Cell Systems

Kammen, Daniel M.

384

The DICO project: A Multimodal Menubased In-vehicle Dialogue System  

E-Print Network (OSTI)

Dico is a multimodal in-car dialogue system application 1. An obvious advantage of spoken dialogue in the vehicle environment is thath the driver does not have to take the eyes- and the attention- off the road. DICO (with capital letters) is also a recently started research project, with funding from

Staffan Larsson; Jessica Villing

2007-01-01T23:59:59.000Z

385

Technology Optimization Process for Heavy Hybrid Electric Vehicle Systems Using Computational Models  

DOE Green Energy (OSTI)

We have developed a computer-based technology optimization process to define vehicle systems that meet specified goals and constraints using a minimum amount of resources. In this paper, we describe the technology optimization process, with a focus on technical target setting, and illustrate its use with a simple example.

OKeefe, M.; Walkowicz, K.; Hendricks, T.

2005-01-01T23:59:59.000Z

386

Digital RAC with a disturbance observer for underwater vehicle-manipulator systems  

Science Conference Proceedings (OSTI)

Most control methods of underwater vehiclemanipulator systems (UVMS) are based on the computed torque method that is used for underwater robotic vehicles. We have proposed a resolved acceleration control (RAC) method for UVMS. In this article, we propose ... Keywords: Digital control, Disturbance observer, Manipulator, Underwater robot

Shinichi Sagara; Takashi Yatoh; Tomoaki Shimozawa

2010-12-01T23:59:59.000Z

387

Reliability challenges for electric vehicles: from devices to architecture and systems software  

Science Conference Proceedings (OSTI)

Today, modern high-end cars have close to 100 electronic control units (ECUs) that are used to implement a variety of applications ranging from safety-critical control to driver assistance and comfort-related functionalities. The total sum of these applications ... Keywords: aging, automotive electronics, cross-layer, electric vehicles, embedded systems, low power, process variations, software

Georg Georgakos, Ulf Schlichtmann, Reinhard Schneider, Samarjit Chakraborty

2013-05-01T23:59:59.000Z

388

Miniaturized pressurization system  

DOE Patents (OSTI)

This invention relates to pressurization systems and liquid rocket propulsion systems, and particularly to those used to attitude control or maneuvering of small space vehicles or airborne vehicles where the requirement for thrust is intermittent rather than continuous, and must be available rapidly upon demand. This invention also relates to increasing performance of such propulsion systems, by way of eliminating inert mass from the propulsion system. The invention uses a fluid stored at a low pressure and provides the fluid at a high pressure. The invention allows the low pressure fluid to flow to a fluid bore of a differential pump and from the pump to a fluid pressure regulator. After flowing through the regulator the fluid is converted to a gas which is directed to a gas bore of the differential pump. By controlling the flow of gas entering and being exhausted from the gas bore, the invention provides pressure to the fluid. By setting the regulator, the high pressure fluid can be set at predetermined values. Because the invention only needs a low pressure fluid, the inventive apparatus has a low mass, and therefore would be useful in rocket propulsion systems.

Whitehead, J.C.; Swink, D.G.

1990-12-31T23:59:59.000Z

389

Heavy Vehicle Systems Optimization Program - 2005 Annual Progress...  

NLE Websites -- All DOE Office Websites (Extended Search)

... 69 A. Cooling Fan and System Performance and Efficiency Improvements Caterpillar, Inc., R.L. Dupree, et...

390

Primer/Paint System for Thermal Insulation of Vehicles  

Disclosure Number 200902299 Technology Summary The present invention comprises an improved primer/paint system for providing enhanced thermal ...

391

Apparatus and method for reducing inductive coupling between levitation and drive coils within a magnetic propulsion system  

DOE Patents (OSTI)

An apparatus and method is disclosed for reducing inductive coupling between levitation and drive coils within a magnetic levitation system. A pole array has a magnetic field. A levitation coil is positioned so that in response to motion of the magnetic field of the pole array a current is induced in the levitation coil. A first drive coil having a magnetic field coupled to drive the pole array also has a magnetic flux which induces a parasitic current in the levitation coil. A second drive coil having a magnetic field is positioned to attenuate the parasitic current in the levitation coil by canceling the magnetic flux of the first drive coil which induces the parasitic current. Steps in the method include generating a magnetic field with a pole array for levitating an object; inducing current in a levitation coil in response to motion of the magnetic field of the pole array; generating a magnetic field with a first drive coil for propelling the object; and generating a magnetic field with a second drive coil for attenuating effects of the magnetic field of the first drive coil on the current in the levitation coil.

Post, Richard F. (Walnut Creek, CA)

2001-01-01T23:59:59.000Z

392

Magnetohydrodynamic sea water propulsion  

DOE Green Energy (OSTI)

An experimental and theoretical investigation of a large scale MHD propulsor has been undertaken whose objectives are to (1) investigate the transient and steady state performance of the thruster over operating parameter ranges that are compatible with achievement of high efficiency, (2) to quantify the principal loss mechanisms within the thruster and (3) to obtain preliminary hydroacoustic data. The performance of the thruster was first investigated theoretically with a 3-D code to quantify the loss mechanisms and identify experimental parameter ranges of interest. The loss mechanisms of interest are ohmic losses within the channel and those resulting from electrical currents at the entrance and exit of the thruster, and enhanced frictional losses. The analysis indicated that the relative importance of the loss mechanisms was a function of the thruster design and operating parameters. The experimental investigation of the large scale propulsor is being conducted on a sea water test facility that was designed to match the capabilities of a large 6-T superconducting magnet. The facility design was such that {approximately}90{degrees} of all losses occurred within the propulsion test train (inlet nozzle, propulsor and diffuser) thus facilitating isolation of the loss mechanisms. The test thruster itself is heavily instrumented to provide local measurements of velocity, pressure, and electric fields. The predicted overall thruster performance and value of the loss mechanisms will be compared with measured values. Comparisons will also be presented of the voltage gradients between electrodes, overall thruster efficiency, axial pressure gradients across the propulsor, change in velocity profiles, axial and vertical current distributions and exit distribution of the electrolytic gases.

Petrick, M.; Thomas, A.; Genens, L.; Libera, J.; Nietert, R.; Bouillard, J.; Pierson, E.; Hill, D.; Picologlou, B.; Ohlsson, O.; Kasprzyk, T.; Berry, G.

1991-12-31T23:59:59.000Z

393

Magnetohydrodynamic sea water propulsion  

DOE Green Energy (OSTI)

An experimental and theoretical investigation of a large scale MHD propulsor has been undertaken whose objectives are to (1) investigate the transient and steady state performance of the thruster over operating parameter ranges that are compatible with achievement of high efficiency, (2) to quantify the principal loss mechanisms within the thruster and (3) to obtain preliminary hydroacoustic data. The performance of the thruster was first investigated theoretically with a 3-D code to quantify the loss mechanisms and identify experimental parameter ranges of interest. The loss mechanisms of interest are ohmic losses within the channel and those resulting from electrical currents at the entrance and exit of the thruster, and enhanced frictional losses. The analysis indicated that the relative importance of the loss mechanisms was a function of the thruster design and operating parameters. The experimental investigation of the large scale propulsor is being conducted on a sea water test facility that was designed to match the capabilities of a large 6-T superconducting magnet. The facility design was such that {approximately}90{degrees} of all losses occurred within the propulsion test train (inlet nozzle, propulsor and diffuser) thus facilitating isolation of the loss mechanisms. The test thruster itself is heavily instrumented to provide local measurements of velocity, pressure, and electric fields. The predicted overall thruster performance and value of the loss mechanisms will be compared with measured values. Comparisons will also be presented of the voltage gradients between electrodes, overall thruster efficiency, axial pressure gradients across the propulsor, change in velocity profiles, axial and vertical current distributions and exit distribution of the electrolytic gases.

Petrick, M.; Thomas, A.; Genens, L.; Libera, J.; Nietert, R.; Bouillard, J.; Pierson, E.; Hill, D.; Picologlou, B.; Ohlsson, O.; Kasprzyk, T.; Berry, G.

1991-01-01T23:59:59.000Z

394

Development of NERVA reactor for space nuclear propulsion  

Science Conference Proceedings (OSTI)

The general technology development and demonstration of a Nuclear Engine for Rocket Vehicle Application (NERVA), a joint AEC-NASA program, was undertaken successfully in the 1960's and terminated in 1971 for lack of a specific mission. Detailed flight engine specifications were defined and several candidate designs which would satisfy these specifications were completed just prior to termination of these efforts. However, the technology interest continued and efforts were extended during the early 1970's to consider space power applications including a manned Mars mission and dual mode (propulsion power and electrical power) operation. Subsequent efforts have continued in developing electric power applications. Light-weight solid core reactor nuclear power sources have been conceptually studied based upon this technology. This paper provides a short summary of the technology that evolved in this very complex and frequently changing program with some specific references to the Mars mission propulsion application as it evolved from the NERVA development program.

Holman, R.R.; Pierce, B.L.

1986-01-01T23:59:59.000Z

395

Int. J. of Heavy Vehicle Systems, Vol. 11, Nos 3/4, 2004 434 Towards computer-aided reverse engineering of  

E-Print Network (OSTI)

Int. J. of Heavy Vehicle Systems, Vol. 11, Nos 3/4, 2004 434 Towards computer-aided reverse engineering of heavy vehicle parts using laser range imaging techniques D. Page, A. Koschan, Y. Sun, Y. Zhang-aided reverse engineering (CARE), heavy vehicles, image-based modelling, reverse engineering, vehicle modelling

Abidi, Mongi A.

396

Powertrain system for a hybrid electric vehicle - Energy ...  

A hybrid electric powertrain system is provided including an electric motor/generator drivingly engaged with the drive shaft of a transmission. The electric is ...

397

Passive cooling system for a vehicle - Energy Innovation Portal  

The passive cooling system includes one or more heat pipes (112) having an evaporator section ... Building Energy Efficiency; ... Solar Thermal; Startup America;

398

Naval Nuclear Propulsion Program Directorate, Washington ...  

Science Conference Proceedings (OSTI)

Naval Nuclear Propulsion Program Directorate, Washington, DC. NVLAP Lab Code: 100565-10. Address and Contact Information: Naval Reactors ...

2013-07-26T23:59:59.000Z

399

Naval Nuclear Propulsion Program Directorate, Washington ...  

Science Conference Proceedings (OSTI)

Naval Nuclear Propulsion Program Directorate, Washington, DC. NVLAP Lab Code: 100565-0. Address and Contact Information: ...

2013-08-23T23:59:59.000Z

400

Naval Nuclear Propulsion Program Directorate, Washington ...  

Science Conference Proceedings (OSTI)

Naval Nuclear Propulsion Program Directorate, Washington, DC. NVLAP Lab Code: 100565-2. Address and Contact Information: Point Loma, Bldg. ...

2013-08-23T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Ultrahigh Specific Impulse Nuclear Thermal Propulsion  

DOE Green Energy (OSTI)

Research on nuclear thermal propulsion systems (NTP) have been in forefront of the space nuclear power and propulsion due to their design simplicity and their promise for providing very high thrust at reasonably high specific impulse. During NERVA-ROVER program in late 1950's till early 1970's, the United States developed and ground tested about 18 NTP systems without ever deploying them into space. The NERVA-ROVER program included development and testing of NTP systems with very high thrust (~250,000 lbf) and relatively high specific impulse (~850 s). High thrust to weight ratio in NTP systems is an indicator of high acceleration that could be achieved with these systems. The specific impulse in the lowest mass propellant, hydrogen, is a function of square root of absolute temperature in the NTP thrust chamber. Therefor optimizing design performance of NTP systems would require achieving the highest possible hydrogen temperature at reasonably high thrust to weight ratio. High hydrogen exit temperature produces high specific impulse that is a diret measure of propellant usage efficiency.

Anne Charmeau; Brandon Cunningham; Samim Anghaie

2009-02-09T23:59:59.000Z

402

Electric vehicle fleet operations in the United States  

DOE Green Energy (OSTI)

The United States Department of Energy (DOE) is actively supporting the development and commercialization of advanced electric vehicles, and advanced batteries and propulsion systems. As part of this effort, the DOE Field Operations Program is performing commercial validation of electric vehicles. These efforts have included on-board data acquisition of electric vehicle operations and baseline performance testing. The baseline performance tests focus on parameters such as range, acceleration, and battery charging. This testing, performed in conjunction with EV America, has included the baseline performance testing of 14 electric vehicles will also be baseline performance tested. The baseline performance testing has documented annual improvements in performance. This and additional information is made available to the public via the internet homepage (http://ev.inel.gov). The Field Operations Program continues to support the development of electric vehicles and infrastructure in conjunction with its new qualified vehicle test partners: Electric Transportation Application of Phoenix, and Southern California Edison. The Field Operations Program is managed by the Lockheed Martin Idaho Technologies Company, at the Idaho National Engineering Laboratory. 4 refs., 5 figs., 2 tabs.

Francfort, J.E. [Idaho National Engineering and Environmental Lab., Idaho Falls, ID (United States); O`Hara, D. [Dept. of Energy, Washington, DC (United States)

1997-10-01T23:59:59.000Z

403

Safety Criteria for Isolated Direct Current Systems in Electric Vehicles: Traction Motor and Control Circuitry Under Charging and Driving Conditions  

Science Conference Proceedings (OSTI)

This report explains some of the background of the requirements for isolated DC systems covered by the standard for personnel protection devices for electric vehicle charging circuits (UL2231). The report provides insight that is intended to help achieve better designs of electric vehicles and chargers.

1999-12-01T23:59:59.000Z

404

FY2001 Progress Report for Automotive Propulsion Materials  

NLE Websites -- All DOE Office Websites (Extended Search)

AUTOMOTIVE PROPULSION AUTOMOTIVE PROPULSION MATERIALS 2 0 0 1 A N N U A L P R O G R E S S R E P O R T U.S. Department of Energy Energy Efficiency and Renewable Energy Office of Transportation Technologies A C K N O W L E D G E M E N T We would like to express our sincere appreciation to Argonne National Laboratory, Computer Systems Management, Inc., and Oak Ridge National Laboratory, for their artistic and technical contributions in preparing and publishing this report. In addition, we would like to thank all our program participants for their contributions to the programs and all the authors who prepared the project abstracts that comprise this report. U.S. Department of Energy Office of Advanced Automotive Technologies 1000 Independence Avenue S.W. Washington, DC 20585-0121 FY 2001 Progress Report for Propulsion Materials

405

Considerations for Steady-State FRC-Based Fusion Space Propulsion (A23579)  

E-Print Network (OSTI)

Proc. Of NASA Advanced Propulsion Workshop On Fusion Propulsion, Huntsville, Alabama, 2000, To Be PublishedNASA Advanced Propulsion Workshop on Fusion Propulsion Huntsville AL, US, 2000978449582

Schaffer, M.J.

2000-11-01T23:59:59.000Z

406

Intelligent Vehicle Systems: A 4D/RCS Approach  

SciTech Connect

This book presents new research on autonomous mobility capabilities and shows how technological advances can be anticipated in the coming two decades. An in-depth description is presented on the theoretical foundations and engineering approaches that enable these capabilities. Chapter 1 provides a brief introduction to the 4D/RCS reference model architecture and design methodology that has proven successful in guiding the development of autonomous mobility systems. Chapters 2 through 7 provide more detailed descriptions of research that has been conducted and algorithms that have been developed to implement the various aspects of the 4D/RCS reference model architecture and design methodology. Chapters 8 and 9 discuss applications, performance measures, and standards. Chapter 10 provides a history of Army and DARPA research in autonomous ground mobility. Chapter 11 provides a perspective on the potential future developments in autonomous mobility.

Madhavan, Raj [ORNL

2007-04-01T23:59:59.000Z

407

ESS 2012 Peer Review - Secondary Use of Vehicle Batteries in Power Systems - Omer Onar, ORNL  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

/2012 1 /2012 1 National Academy of Engineering - BMED December 2008 www.oe.energy.gov U.S. Department of Energy - 1000 Independence Ave., SW Washington, DC 20585 Secondary Use of Vehicle Batteries in Power Systems December 2008 Secondary Use of Vehicle Batteries in Power Systems Objective Life-cycle Funding Summary FY12 FY13 300k ?k Technical Scope The objective is this project is to carry out a collaborative effort among ORNL, original equipment manufacturers (OEM)s, and other partners to develop a cogent and informed view of the economic and technological value of secondary use of EV batteries in grid support. CES is one of the highlighted synergistic applications with a high value to cost relationship. Specific grid services related to CES (community energy storage) is

408

Recapturing NERVA-Derived Fuels for Nuclear Thermal Propulsion  

DOE Green Energy (OSTI)

The Department of Energy is working with NASA to examine fuel options for Nuclear Thermal Propulsion applications. Extensive development and testing was performed on graphite-based fuels during the Nuclear Engineer Rocket Vehicle Application (NERVA) and Rover programs through the early 1970s. This paper explores the possibility of recapturing the technology and the issues associated with using it for the next generation of nuclear thermal rockets. The issues discussed include a comparison of today's testing capabilities, analysis techniques and methods, and knowledge to that of previous development programs and presents a plan to recapture the technology for a flight program.

Qualls, A L [ORNL; Hancock, Emily F [ORNL

2011-01-01T23:59:59.000Z

409

Large-Scale Electric-Vehicle Battery Systems: Long-Term . . .  

E-Print Network (OSTI)

We investigate long-term metal resource constraints for large-scale EV systems for nine types of batteries: Li-polymer(V), Li-ion(Mn, Ni and Co), NaNiCl, NiMH(AB 2 and AB 5 ), NiCd and PbA, containing seven potentially scarce metals/group of metals: lithium, nickel, cobalt, vanadium, cadmium, lead and rare-earth elements. As a basis for the analysis, we calculate EV fleet size potentials (FSP) from estimated materials requirements: metal intensities (kg/kWh) and battery energy capacities per vehicle (kWh/vehicle); and available materials: reserve base and the amount that corresponds to 100 years of mining at current rates. NiCd, Li-ion(Co) and PbA have the most limited FSP (reserve base) with 20--50 million, 200--500 million and 500--800 million vehicles, respectively. Li-ion(Mn), NaNiCl and Li-ion(Ni) have the least limited FSP (reserve base) with 3--8 billion, 3--5 billion and 2--4 billion vehicles, respectively. However, for several of the batteries, 100 years of mining at current rate is much more limiting. The FSP only indicate magnitudes and it is not hard to reach FSP values ten times lower with additional assumptions. Important factors regarding the potential for higher or lower FSP are discussed, both for materials requirements: materials intensity and energy storage capacity per vehicle; as well as for metals availability: stocks of available resources, constraints on annual mine production and competition for metals. 1.

Bjrn A. Andersson; Ingrid Rde

1999-01-01T23:59:59.000Z

410

Integrating plug-in electric vehicles into the electric power system.  

E-Print Network (OSTI)

??This dissertation contributes to our understanding of how plug-in hybrid electric vehicles (PHEVs) and plug-in battery-only electric vehicles (EVs)collectively termed plug-in electric vehicles (PEVs)could be (more)

Wu, Di

2012-01-01T23:59:59.000Z

411

MOA: Magnetic Field Oscillating Amplified Thruster and its Application for Nuclear Electric and Thermal Propulsion  

Science Conference Proceedings (OSTI)

More than 60 years after the later Nobel laureate Hannes Alfven had published a letter stating that oscillating magnetic fields can accelerate ionised matter via magneto-hydrodynamic interactions in a wave like fashion, the technical implementation of Alfven waves for propulsive purposes has been proposed, patented and examined for the first time by a group of inventors. The name of the concept, utilising Alfven waves to accelerate ionised matter for propulsive purposes, is MOA - Magnetic field Oscillating Amplified thruster. Alfven waves are generated by making use of two coils, one being permanently powered and serving also as magnetic nozzle, the other one being switched on and off in a cyclic way, deforming the field lines of the overall system. It is this deformation that generates Alfven waves, which are in the next step used to transport and compress the propulsive medium, in theory leading to a propulsion system with a much higher performance than any other electric propulsion system. Based on computer simulations, which were conducted to get a first estimate on the performance of the system, MOA is a highly flexible propulsion system, whose performance parameters might easily be adapted, by changing the mass flow and/or the power level. As such the system is capable to deliver a maximum specific impulse of 13116 s (12.87 mN) at a power level of 11.16 kW, using Xe as propellant, but can also be attuned to provide a thrust of 236.5 mN (2411 s) at 6.15 kW of power. While space propulsion is expected to be the prime application for MOA and is supported by numerous applications such as Solar and/or Nuclear Electric Propulsion or even as an 'afterburner system' for Nuclear Thermal Propulsion, other terrestrial applications can be thought of as well, making the system highly suited for a common space-terrestrial application research and utilisation strategy. (authors)

Frischauf, Norbert [QASAR Technologie(s) GmbH, Johann Gottekgasse 39, A-1230, Vienna (Austria); Hettmer, Manfred; Grassauer, Andreas; Bartusch, Tobias [QASAR Technologie(s) GmbH, Johann Gottekgasse 39, A-1230, Vienna (Austria); Koudelka, Otto [Institute of Communication Networks and Satellite Communication, Graz University of Technology, Inffeldgasse 12/I, A-8010 Graz (Austria)

2006-07-01T23:59:59.000Z

412

Battery charging control methods, electric vehicle charging methods, battery charging apparatuses and rechargeable battery systems  

DOE Patents (OSTI)

Battery charging control methods, electric vehicle charging methods, battery charging apparatuses and rechargeable battery systems. According to one aspect, a battery charging control method includes accessing information regarding a presence of at least one of a surplus and a deficiency of electrical energy upon an electrical power distribution system at a plurality of different moments in time, and using the information, controlling an adjustment of an amount of the electrical energy provided from the electrical power distribution system to a rechargeable battery to charge the rechargeable battery.

Tuffner, Francis K. (Richland, WA); Kintner-Meyer, Michael C. W. (Richland, WA); Hammerstrom, Donald J. (West Richland, WA); Pratt, Richard M. (Richland, WA)

2012-05-22T23:59:59.000Z

413

A Queueing Based Scheduling Approach to Plug-In Electric Vehicle Dispatch in Distribution Systems  

E-Print Network (OSTI)

Large-scale integration of plug-in electric vehicles (PEV) in power systems can cause severe issues to the existing distribution system, such as branch congestions and significant voltage drops. As a consequence, smart charging strategies are crucial for the secure and reliable operation of the power system. This paper tries to achieve high penetration level of PEVs with the existing distribution system infrastructure by proposing a smart charging algorithm that can optimally utilize the distribution system capacity. Specifically, the paper proposes a max-weight PEV dispatch algorithm to control the PEV charging rates, subject to power system physical limits. The proposed max-weight PEV dispatch algorithm is proved to be throughput optimal under very mild assumptions on the stochastic dynamics in the system. This suggests that the costly distribution system infrastructure upgrade can be avoided, or failing that, at least successfully deferred. The proposed PEV dispatch algorithm is particularly attractive in ...

Li, Qiao; Ilic, Marija D

2012-01-01T23:59:59.000Z

414

Survey for the development of compressed natural gas systems (CNG) for vehicles.  

E-Print Network (OSTI)

??Compressed Natural Gas (CNG) vehicles have been used internationally by fleets for decades. The use of CNG vehicles results in less petroleum consumption, resulting in (more)

Abulamosha, A.M.

2005-01-01T23:59:59.000Z

415

Vehicle Testing and Analysis Group: Center for Transportation Technologies and Systems (CTTS) (Brochure)  

DOE Green Energy (OSTI)

Describes NREL's Vehicle Testing and Analysis Group's work in vehicle and fleet evaluations, testing, data, and analysis for government and industry partners.

Not Available

2008-10-01T23:59:59.000Z

416

System Modeling and Energy Management Strategy Development for Series Hybrid Vehicles .  

E-Print Network (OSTI)

??A series hybrid electric vehicle is a vehicle that is powered by both an engine and a battery pack. An electric motor provides all of (more)

Cross, Patrick Wilson

2008-01-01T23:59:59.000Z

417

Computer program development specification for the air traffic control subsystem of the Man-Vehicle Systems Research Facility.  

E-Print Network (OSTI)

Functional summary: The Air Traffic Control (ATC) Subsystem of the Man-Vehicle System Research Facility (MVSRF) is a hardware/software complex which provides the MVSRF with the capability of simulating the multi-aircraft, ...

Massachusetts Institute of Technology. Flight Transportation Laboratory

1982-01-01T23:59:59.000Z

418

Experimental investigation of the ground transportation systems (GTS) project for heavy vehicle drag reduction  

DOE Green Energy (OSTI)

A wind tunnel experimental research program was conducted on a heavily instrumented Ground Transportation System (GTS) vehicle. The GTS baseline model represented a generic 1:8 scale Class-8 van-type tractor trailer geometry. Five base drag reduction add-on devices, instrumented with surface pressure ports, were also tested. These add-on devices included two ogive boattail shapes and three slant geometry devices. Six component force and moment data, surface pressure contours, and wake velocity surveys are presented for each configuration along with qualitative insights gained from flow visualization. This wind tunnel program was designed to complement a parallel research effort in computational fluid dynamics (CFD) which modeled many of these same vehicle geometries. The wind tunnel data are documented and archived in ASCII format on floppy discs and available to researchers interested in further analysis or comparison to other CFD solutions.

Croll, R.H.; Gutierrez, W.T.; Hassan, B.; Suazo, J.E.; Riggins, A.J.

1995-12-31T23:59:59.000Z

419

VEHICLE SPECIFICATIONS  

NLE Websites -- All DOE Office Websites (Extended Search)

Page 1 of 5 Page 1 of 5 VEHICLE SPECIFICATIONS 1 Vehicle Features Base Vehicle: 2011 Nissan Leaf VIN: JN1AZ0CP5BT000356 Class: Mid-size Seatbelt Positions: 5 Type: EV Motor Type: Three-Phase, Four-Pole Permanent Magnet AC Synchronous Max. Power/Torque: 80 kW/280 Nm Max. Motor Speed: 10,390 rpm Cooling: Active - Liquid cooled Battery Manufacturer: Automotive Energy Supply Corporation Type: Lithium-ion - Laminate type Cathode/Anode Material: LiMn 2 O 4 with LiNiO 2 /Graphite Pack Location: Under center of vehicle Number of Cells: 192 Cell Configuration: 2 parallel, 96 series Nominal Cell Voltage: 3.8 V Nominal System Voltage: 364.8 V Rated Pack Capacity: 66.2 Ah Rated Pack Energy: 24 kWh Max. Cell Charge Voltage 2 : 4.2 V Min. Cell Discharge Voltage 2 : 2.5 V

420

Hybrid and Plug-In Electric Vehicles (Brochure), Vehicle Technologies Program (VTP)  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Hybrid and plug-in electric vehicles Hybrid and plug-in electric vehicles use electricity as their primary fuel or to improve the efficiency of conventional vehicle designs. This new generation of vehicles, often called electric drive vehicles, can be divided into three cat- egories: hybrid electric vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and all-electric vehicles (EVs). Together, they have great potential to reduce U.S. petroleum use. Hybrid Electric Vehicles HEVs are powered by an internal combus- tion engine or other propulsion source that runs on conventional or alternative fuel and an electric motor that uses energy stored in a battery. The extra power provided by the electric motor allows for a smaller engine, resulting in better fuel

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

The impact of electric vehicles on the Southern California Edison System  

Science Conference Proceedings (OSTI)

This report describes the results of the first phase of an investigation of the impacts of electric vehicles (EVs) in southern California. The investigation focuses on the Southern California Edison Company (SCE) which provides electric service for approximately 60% of southern California. The project is supported by the Air Quality Impacts of Energy Efficiency'' Program of the California Institute for Energy Efficiency (CIEE). The first phase of the research is organized around how EVs might be viewed by customers, vehicle manufacturers and electric utility companies. The vehicle manufacturers' view has been studied with special emphasis on the role of marketable permit systems. The utilities' view of EVs is the subject of this report. The review is particularly important as several case studies of EVs in southern California have been conducted in recent years. The dynamics of a growing population of EVs is explained. Chapter 5 explains a simple method of deriving the electricity demands which could result from the operation of EVs in southern California. The method is demonstrated for several simple examples and then used to find the demands associated with each of the eight EV scenarios. Chapter 6 reports the impacts on SCE operations from the new demands for electricity. Impacts are summarized in terms of system operating costs, reliability of service, and changes in the utility's average electric rate. Chapter 7 turns to the emissions of air pollutants released by the operation of EVs, conventional vehicles (CVs) and power plants. Chapter 8 takes the air pollution analysis one step further by examining the possible reduction in ambient ozone concentration in southern California.

Ford, A.

1992-07-01T23:59:59.000Z

422

The impact of electric vehicles on the Southern California Edison System. Final report  

Science Conference Proceedings (OSTI)

This report describes the results of the first phase of an investigation of the impacts of electric vehicles (EVs) in southern California. The investigation focuses on the Southern California Edison Company (SCE) which provides electric service for approximately 60% of southern California. The project is supported by the ``Air Quality Impacts of Energy Efficiency`` Program of the California Institute for Energy Efficiency (CIEE). The first phase of the research is organized around how EVs might be viewed by customers, vehicle manufacturers and electric utility companies. The vehicle manufacturers` view has been studied with special emphasis on the role of marketable permit systems. The utilities` view of EVs is the subject of this report. The review is particularly important as several case studies of EVs in southern California have been conducted in recent years. The dynamics of a growing population of EVs is explained. Chapter 5 explains a simple method of deriving the electricity demands which could result from the operation of EVs in southern California. The method is demonstrated for several simple examples and then used to find the demands associated with each of the eight EV scenarios. Chapter 6 reports the impacts on SCE operations from the new demands for electricity. Impacts are summarized in terms of system operating costs, reliability of service, and changes in the utility`s average electric rate. Chapter 7 turns to the emissions of air pollutants released by the operation of EVs, conventional vehicles (CVs) and power plants. Chapter 8 takes the air pollution analysis one step further by examining the possible reduction in ambient ozone concentration in southern California.

Ford, A.

1992-07-01T23:59:59.000Z

423

Combining Electric and Sail Propulsion for Interplanetary Sample Return  

DOE Green Energy (OSTI)

Fast sample return from the outer Solar System would open an entirely new avenue for space science, but the vast distances make this a daunting task. The achievable transit velocity and the need for extra propellant on the return trip limit the feasibility of returning extraterrestrial samples to Earth. To keep the mission duration short enough to be of interest, sample return from objects farther out in the Solar System requires increasingly higher velocities. High specific impulse, electric propulsion reduces the propellant required for the outbound and return trips, but decelerating the spacecraft at the inner Solar System from high velocity still involves a long, inward spiral trajectory. The use of solar sails to rapidly decelerate incoming sample capsules and eliminate propellant is explored in this paper. The sail is essentially a ''solar parachute'' used for braking at the end of the interplanetary return flight, permitting a higher transit speed and truncating the deceleration spiral. In this application the sail is relatively small and manageable since only the sample capsule and its sail are decelerated. A comparison is made between using all-electric propulsion versus combining electric propulsive acceleration with sail deceleration for sample return from the distances of Saturn, Uranus, and Pluto. Solar-sail braking dramatically reduces the return flight time by one-third or more compared to using electric rocket deceleration. To elucidate the technology requirements, wide ranges for both the loaded sail density and electric propulsion specific mass are considered in this initial parametric study.

Noble, Robert

2003-02-04T23:59:59.000Z

424

A Vehicle Systems Approach to Evaluate Plug-in Hybrid Battery Cold Start, Life and Cost Issues  

E-Print Network (OSTI)

The batteries used in plug-in hybrid electric vehicles (PHEVs) need to overcome significant technical challenges in order for PHEVs to become economically viable and have a large market penetration. The internship at Argonne National Laboratory (ANL) involved two experiments which looked at a vehicle systems approach to analyze two such technical challenges: Battery life and low battery power at cold (-7 ?C) temperature. The first experiment, concerning battery life and its impact on gasoline savings due to a PHEV, evaluates different vehicle control strategies over a pre-defined vehicle drive cycle, in order to identify the control strategy which yields the maximum dollar savings (operating cost) over the life of the vehicle, when compared to a charge sustaining hybrid. Battery life degradation over the life of the vehicle, and fuel economy savings on every trip (daily) are taken into account when calculating the net present value of the gasoline dollars saved. The second experiment evaluates the impact of different vehicle control strategies in heating up the PHEV battery (due to internal ohmic losses) for cold ambient conditions. The impact of low battery power (available to the vehicle powertrain) due to low battery and ambient temperatures has been well documented in literature. The trade-off between the benefits of heating up the battery versus heating up the internal combustion engine are evaluated, using different control strategies, and the control strategy, which provided optimum temperature rise of each component, is identified.

Shidore, Neeraj Shripad

2012-05-01T23:59:59.000Z

425

Next Generation Nanosatellite Systems: Mechanical Analysis and Test.  

E-Print Network (OSTI)

??The Canadian Nanosatellite Advanced Propulsion System is the second generation cold-gas propulsion system. Its purpose is to provide the millinewton thrust required for formation control (more)

Ligori, Michael C.

2011-01-01T23:59:59.000Z

426

Progress in revolutionary propulsion physics  

E-Print Network (OSTI)

Prior to 1988, traversable wormholes were just science fiction. Prior to 1994, warp drives were just fiction. Since then, these notions matured into published scientific discourse, where key issues and unknowns continue to be raised and investigated. In 2009, the American Institute of Aeronautics and Astronautics published a peer-reviewed, expansive technical volume on these and other investigations toward breakthrough propulsion. This paper summarizes the key assertions from that 739-page volume, describing the collective state-of-the-art and candidate research steps that will lead to discovering if, or how, such breakthroughs might finally be achieved. Coverage includes: prerequisites for space drive physics, manipulating gravity or inertia for propulsion, lessons from superconductor experiments, null results with "lifters", implications of photon momentum in media, quantum vacuum physics, and the faster-than-light implications of general relativity and quantum non-locality.

Marc G. Millis

2011-01-05T23:59:59.000Z

427

Modeling Electric Vehicle Benefits Connected to Smart Grids  

E-Print Network (OSTI)

Modeling Electric Vehicle Benefits Connected to Smart Grids Michael Stadler1,2 , Chris Marnay1 to be presented at the 7th IEEE Vehicle Power and Propulsion Conference Chicago, IL, Sept 6-9 2011 http, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement

428

Modeling Electric Vehicle Benefits Connected to Smart Grids  

NLE Websites -- All DOE Office Websites (Extended Search)

Modeling Electric Vehicle Benefits Connected to Smart Grids Modeling Electric Vehicle Benefits Connected to Smart Grids Title Modeling Electric Vehicle Benefits Connected to Smart Grids Publication Type Conference Paper Year of Publication 2011 Authors Stadler, Michael, Chris Marnay, Ratnesh Sharma, Gonçalo Mendes, Maximillian Kloess, Gonçalo Cardoso, Olivier Mégel, and Afzal S. Siddiqui Conference Name 7th IEEE Vehicle Power and Propulsion Conference Date Published 09/2011 Publisher LBNL Conference Location Chicago, IL Keywords electricity markets and policy group, energy analysis and environmental impacts department Abstract Connecting electric storage technologies to smartgrids will have substantial implications in building energy systems. Local storage will enable demand response. Mobile storage devices in electric vehicles (EVs) are in direct competition with conventional stationary sources at the building. EVs will change the financial as well as environmental attractiveness of on-site generation (e.g. PV, or fuel cells). In order to examine the impact of EVs on building energy costs and CO2 emissions in 2020, a distributed-energy-resources adoption problem is formulated as a mixed-integer linear program with minimization of annual building energy costs or CO2 emissions. The mixed-integer linear program is applied to a set of 139 different commercial buildings in California and example results as well as the aggregated economic and environmental benefits are reported. The research shows that considering second life of EV batteries might be very beneficial for commercial buildings.

429

Deploying power grid-integrated electric vehicles as a multi-agent system  

Science Conference Proceedings (OSTI)

Grid-Integrated Vehicles (GIVs) are plug-in Electric Drive Vehicles (EDVs) with power-management and other controls that allow them to respond to external commands sent by power-grid operators, or their affiliates, when parked and plugged-in to the grid. ... Keywords: coalition formation, grid-integrated-vehicle, power regulation, vehicle-to-grid

Sachin Kamboj; Willett Kempton; Keith S. Decker

2011-05-01T23:59:59.000Z

430

Potential of electric propulsion systems to reduce petroleum use and greenhouse gas emissions in the U.S. light-duty vehicle fleet  

E-Print Network (OSTI)

In the summer of 2008, the United States of America experienced an oil shock, first of a kind since 1970s. The American public became sensitized to the concerns about foreign oil supply and climate change and global warming, ...

Khusid, Michael

2010-01-01T23:59:59.000Z

431

Advanced Turbine Technology Applications Project (ATTAP) and Hybrid Vehicle Turbine Engine Technology Support project (HVTE-TS): Final summary report  

DOE Green Energy (OSTI)

This final technical report was prepared by Rolls-Royce Allison summarizing the multiyear activities of the Advanced Turbine Technology Applications Project (ATTAP) and the Hybrid Vehicle Turbine Engine Technology Support (HVTE-TS) project. The ATTAP program was initiated in October 1987 and continued through 1993 under sponsorship of the US Department of Energy (DOE), Energy Conservation and Renewable Energy, Office of Transportation Technologies, Propulsion Systems, Advanced Propulsion Division. ATTAP was intended to advance the technological readiness of the automotive ceramic gas turbine engine. The target application was the prime power unit coupled to conventional transmissions and powertrains. During the early 1990s, hybrid electric powered automotive propulsion systems became the focus of development and demonstration efforts by the US auto industry and the Department of energy. Thus in 1994, the original ATTAP technology focus was redirected to meet the needs of advanced gas turbine electric generator sets. As a result, the program was restructured to provide the required hybrid vehicle turbine engine technology support and the project renamed HVTE-TS. The overall objective of the combined ATTAP and HVTE-TS projects was to develop and demonstrate structural ceramic components that have the potential for competitive automotive engine life cycle cost and for operating 3,500 hr in an advanced high temperature turbine engine environment. This report describes materials characterization and ceramic component development, ceramic components, hot gasifier rig testing, test-bed engine testing, combustion development, insulation development, and regenerator system development. 130 figs., 12 tabs.

NONE

1998-12-01T23:59:59.000Z

432

The NASA-JPL Advanced Propulsion Program  

E-Print Network (OSTI)

this paper was performed the Jet Propulsion Laboratory California Institute of Technology, under contract with the Aeronautics and Space Administration. Mid-Term Far-Term 5. 7.

Robert Frisbee

1996-01-01T23:59:59.000Z

433

The design and feasibility of a 10 mN chemical space propulsion thruster  

E-Print Network (OSTI)

This thesis discusses the design of a ten milli Newton chemical propulsion system for providing approximately 200 m/s delta velocity to a five kg satellite. The nozzle is the focus of the experimental work, which involves ...

Bruccoleri, Alexander Robert

2009-01-01T23:59:59.000Z

434

Vehicle Technologies Office: Batteries  

NLE Websites -- All DOE Office Websites (Extended Search)

vehicles. In fact, every hybrid vehicle on the market currently uses Nickel-Metal-Hydride high-voltage batteries in its battery system. Lithium ion batteries appear to be the...

435

Social networking in vehicles  

E-Print Network (OSTI)

In-vehicle, location-aware, socially aware telematic systems, known as Flossers, stand to revolutionize vehicles, and how their drivers interact with their physical and social worlds. With Flossers, users can broadcast and ...

Liang, Philip Angus

2006-01-01T23:59:59.000Z

436

Switching algorithms for extending battery life in Electric Vehicles Ron Adany a,*, Doron Aurbach b  

E-Print Network (OSTI)

of automobiles. The propulsion solutions for EVs are based on hybrid or fully battery powered electric vehiclesSwitching algorithms for extending battery life in Electric Vehicles Ron Adany a,*, Doron Aurbach b 27 December 2012 Keywords: Electric Vehicles (EV) Switching algorithms Battery life Lithium ion

Kraus, Sarit

437

Method and appartus for converting static in-ground vehicle scales into weigh-in-motion systems  

DOE Patents (OSTI)

An apparatus and method for converting in-ground static weighing scales for vehicles to weigh-in-motion systems. The apparatus upon conversion includes the existing in-ground static scale, peripheral switches and an electronic module for automatic computation of the weight. By monitoring the velocity, tire position, axle spacing, and real time output from existing static scales as a vehicle drives over the scales, the system determines when an axle of a vehicle is on the scale at a given time, monitors the combined weight output from any given axle combination on the scale(s) at any given time, and from these measurements automatically computes the weight of each individual axle and gross vehicle weight by an integration, integration approximation, and/or signal averaging technique.

Muhs, Jeffrey D. (Lenior City, TN); Scudiere, Matthew B. (Oak Ridge, TN); Jordan, John K. (Oak Ridge, TN)

2002-01-01T23:59:59.000Z

438

ORNL Propulsion Materials Home Page  

NLE Websites -- All DOE Office Websites (Extended Search)

low emissions. The program partners with the Office of Vehicle Technologies programs for Power Electronics and Electric Machines and for Combustion and Emissions Control for...

439

Commercial Motor Vehicle Brake Assessment Tools  

E-Print Network (OSTI)

Commercial Motor Vehicle Brake Assessment Tools Commercial Motor Vehicle Roadside Technology Corridor Safety Technology Showcase October 14, 2010 Commercial Motor Vehicle Roadside Technology Corridor #12;Overview · Commercial Motor Vehicle (CMV) Air Brake System · North American Standard Level-1

440

Vehicle test report: South Coast Technology electric cconversion of a Volkswagen Rabbit  

DOE Green Energy (OSTI)

The South Coast Technology Volkswagen Rabbit, an electric vehicle manufactured by South Coast Technology of Santa Barbara, California was tested at the Jet Propulsion Laboratory's (JPL) dynamometer facility in Pasadena and at JPL's Edwards Test Station (ETS) located near Lancaster, California. The tests were conducted between April and July, 1979. These tests were performed to characterize certain parameters of the South Coast Rabbit and to provide baseline data that will be used for the comparison of near-term batteries that are to be incorporated into the vehicle. The vehicle tests were concentrated on the electrical drive system; i.e., the batteries, controller, and motor. The tests included coastdowns to characterize the road load, maximum effort acceleration, and range evaluation for both cyclic constant speed conditions. A qualitative evaluation of the vehicle was made by comparing its constant speed range performance with those vehicles described in the document State of the Art assessment of Electric and Hybrid Vehicles. The Rabbit performance was near to the best of the 1977 vehicles.

Price, T.W.; Shain, T.W.; Bryant, J.A.

1981-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "vehicle propulsion systems" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Polymers for hydrogen infrastructure and vehicle fuel systems : applications, properties, and gap analysis.  

SciTech Connect

This document addresses polymer materials for use in hydrogen service. Section 1 summarizes the applications of polymers in hydrogen infrastructure and vehicle fuel systems and identifies polymers used in these applications. Section 2 reviews the properties of polymer materials exposed to hydrogen and/or high-pressure environments, using information obtained from published, peer-reviewed literature. The effect of high pressure on physical and mechanical properties of polymers is emphasized in this section along with a summary of hydrogen transport through polymers. Section 3 identifies areas in which fuller characterization is needed in order to assess material suitability for hydrogen service.

Barth, Rachel Reina; Simmons, Kevin L. [Pacific Northwest National Laboratory, Richland, WA] [Pacific Northwest National Laboratory, Richland, WA; San Marchi, Christopher W.

2013-10-01T23:59:59.000Z

442

Method of converting an existing vehicle powertrain to a hybrid powertrain system  

DOE Patents (OSTI)

A method of converting an existing vehicle powertrain including a manual transmission to a hybrid powertrain system with an automated powertrain transmission. The first step in the method of attaching a gear train housing to a housing of said manual transmission, said gear train housing receiving as end of drive shaft of said transmission and rotatably supporting a gear train assembly. Secondly, mounting an electric motor/generator to said gear train housing and attaching a motor/generator drive shaft of said electric motor/generator to said gear train assembly. Lastly, connecting an electro-mechanical clutch actuator to a friction clutch mechanism of said manual transmission.

Reed, Jr., Richard G. (Royal Oak, MI); Boberg, Evan S. (Hazel Park, MI); Lawrie, Robert E. (Whitmore Lake, MI); Castaing, Francois J. (Bloomfield Township, MI)

2001-12-25T23:59:59.000Z

443

Alternative Vehicles  

Energy.gov (U.S. Department of Energy (DOE))

There are a number of alternative and advanced vehiclesor vehicles that run on alternative fuels. Learn more about the following types of vehicles:

444

Preliminary design of a solar thermal propulsion technology demonstration experiment.  

E-Print Network (OSTI)

??Solar thermal propulsion (STP) is an advanced space propulsion technology wherein solar power is used to directly heat the propellant. It potentially allows for achieving (more)

GAETANO, ANTONIO

2009-01-01T23:59:59.000Z

445

Naval Nuclear Propulsion Plants | National Nuclear Security Administra...  

National Nuclear Security Administration (NNSA)

Naval Nuclear Propulsion Plants In naval nuclear propulsion plants, fissioning of uranium atoms in the reactor core produces heat. Because the fission process also produces...

446

Vehicle Technologies Office: Lubricants  

NLE Websites -- All DOE Office Websites (Extended Search)

Lubricants to someone by Lubricants to someone by E-mail Share Vehicle Technologies Office: Lubricants on Facebook Tweet about Vehicle Technologies Office: Lubricants on Twitter Bookmark Vehicle Technologies Office: Lubricants on Google Bookmark Vehicle Technologies Office: Lubricants on Delicious Rank Vehicle Technologies Office: Lubricants on Digg Find More places to share Vehicle Technologies Office: Lubricants on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Advanced Combustion Engines Fuels & Lubricants Fuel Effects on Combustion Lubricants Natural Gas Research Biofuels End-Use Research Materials Technologies Lubricants As most vehicles are on the road for more than 15 years before they are retired, investigating technologies that will improve today's vehicles is

447

Vehicle Research Laboratory - FEERC  

NLE Websites -- All DOE Office Websites (Extended Search)

Vehicle Research Laboratory Vehicle Research Laboratory Expertise The overall FEERC team has been developed to encompass the many disciplines necessary for world-class fuels, engines, and emissions-related research, with experimental, analytical, and modeling capabilities. Staff members specialize in areas including combustion and thermodynamics, emissions measurements, analytical chemistry, catalysis, sensors and diagnostics, dynamometer cell operations, engine controls and control theory. FEERC engineers have many years of experience in vehicle research, chassis laboratory development and operation, and have developed specialized systems and methods for vehicle R&D. Selected Vehicle Research Topics In-use investigation of Lean NOx Traps (LNTs). Vehicle fuel economy features such as lean operation GDI engines,

448

Hybrid vehicle turbine engine technology support (HVTE-TS) project. 1995--1996 annual report  

DOE Green Energy (OSTI)

This report presents a summary of technical work accomplished on the Hybrid Vehicle Turbine Engine--Technology Support (HVTE-TS) Project during calendar years 1995 and 1996. Work was performed under an initial National Aeronautics and Space Administration (NASA) contract DEN3-336. As of September 1996 the contract administration was transferred to the US Department of Energy (DoE) Chicago Operations Office, and renumbered as DE-AC02-96EE50553. The purpose of the HVTE-TS program is to develop gas turbine engine technology in support of DoE and automotive industry programs exploring the use of gas turbine generator sets in hybrid-electric automotive propulsion systems. The program focus is directed to the development of four key technologies to be applied to advanced turbogenerators for hybrid vehicles: Structural ceramic materials and processes; Low emissions combustion systems; Regenerators and seals systems; and Insulation systems and processes. 60 figs., 9 tabs.

NONE

1996-12-31T23:59:59.000Z

449

History of Ramjet and Scramjet Propulsion Development for U.S. Navy Missiles  

E-Print Network (OSTI)

this article is to summarize the evolution and development of ramjet engines (and variants thereof) as propulsion systems for missiles flying at supersonic (or faster) flight speeds that have been supported by the U.S. Navy since World War II. Reference 1 provides a discussion on the details of the types of engines under discussion, along with their limitations, and a historical perspective on the evolutionary timescale of ramjets, scramjets, and mixed-cycle engines. Reference 2 presents a similar discussion for U.S. Air Force--developed systems. In this article we summarize programs to develop surface-launched and air-launched subsonic combustion ramjets and scramjets. Table 1 shows the evolutionary history of all of the ramjet and scramjet engine and vehicle concepts and systems included in these discussions. The names, engine types, dates, performance, system constraints, etc., for each are presented. (Some information is not given for reasons of security.) The U.S. Navy has supported and developed a substantial technology base, including a variety of ramjets. This technology base, however, is not nearly as substantial for scramjets and their derivatives. A number of these ramjet engines and ramjet-powered weapon concepts have been flight tested, but none at hypersonic speeds. Only one U.S. Navy ramjet system has ever become operational (the Talos), and it is still being used as a target today (Vandal). SURFACE-LAUNCHED RAMJET DEVELOPMENT

P. J. Waltrup; Michael E. White; Frederick Zarlingo; Edward S. Gravlin

1997-01-01T23:59:59.000Z

450

Practice Prize Paper---PIN Optimal Distribution of Auction Vehicles System: Applying Price Forecasting, Elasticity Estimation, and Genetic Algorithms to Used-Vehicle Distribution  

Science Conference Proceedings (OSTI)

In addition to retailing new vehicles, automotive manufacturers in the United States sell millions of vehicles through leasing and to fleet customers every year. The majority of these vehicles are returned to the automotive manufacturers at the end of ... Keywords: auction price, distribution, forecasting, optimization, used vehicle

Jie Du; Lili Xie; Stephan Schroeder

2009-07-01T23:59:59.000Z

451

Performance comparison between thrusters PPS1350 and the Phall 1 in optimal trajectories using flybies and solar electric propulsion  

Science Conference Proceedings (OSTI)

The spacecraft propulsion system has passed for diverse evolutions, leaving combustion engines and arriving at ion propulsion. The future interplanetary missions will probably use the conventional chemical rockets to leave the sphere of influence of ... Keywords: applied mathematics, astrodynamics, celestial mechanics, flyby, space trajectories

Denilson Paulo Souza Dos Santos; Antonio Fernando Bertachini De Almeida Prado

2010-07-01T23:59:59.000Z

452

Ablative Laser Propulsion: An Update, Part II  

Science Conference Proceedings (OSTI)

This paper presents an updated review of studies on Ablative Laser Propulsion conducted by the Laser Propulsion Group (LPG) at the University of Alabama in Huntsville. In particular, we describe the experimental technique developed for determination of specific impulses from plasma plume imaging with an intensified CCD camera.

Pakhomov, Andrew V.; Lin Jun; Thompson, M. Shane [Department of Physics, University of Alabama in Huntsville, Huntsville, AL 35899 (United States); Information Systems Laboratories, Inc., Brownsboro, Alabama, 35741 (United States)

2004-03-30T23:59:59.000Z

453

Ablative Laser Propulsion: An Update, Part I  

Science Conference Proceedings (OSTI)

This paper presents an updated review of studies on Ablative Laser Propulsion conducted by the Laser Propulsion Group (LPG) at the University of Alabama in Huntsville. In particular, we describe the newest results of our experimental study of specific impulses and coupling coefficients achieved by double-pulsed ablation of graphite, aluminum, copper and lead targets.

Pakhomov, Andrew V.; Cohen, Timothy; Lin Jun; Thompson, M. Shane; Herren, Kenneth A. [Department of Physics, University of Alabama in Huntsville, Huntsville, AL 35899 (United States); Information Systems Laboratories, Inc., Brownsboro, Alabama, 35741 (United States); National Space Science and Technology Center, NASA Marshall Space Flight Center, Huntsville, AL 35812 (United States)

2004-03-30T23:59:59.000Z

454

FreedomCAR :electrical energy storage system abuse test manual for electric and hybrid electric vehicle applications.  

DOE Green Energy (OSTI)

This manual defines a complete body of abuse tests intended to simulate actual use and abuse conditions that may be beyond the normal safe operating limits experienced by electrical energy storage systems used in electric and hybrid electric vehicles. The tests are designed to provide a common framework for abuse testing various electrical energy storage systems used in both electric and hybrid electric vehicle applications. The manual incorporates improvements and refinements to test descriptions presented in the Society of Automotive Engineers Recommended Practice SAE J2464 ''Electric Vehicle Battery Abuse Testing'' including adaptations to abuse tests to address hybrid electric vehicle applications and other energy storage technologies (i.e., capacitors). These (possibly destructive) tests may be used as needed to determine the response of a given electrical energy storage system design under specifically defined abuse conditions. This manual does not provide acceptance criteria as a result of the testing, but rather provides results that are accurate and fair and, consequently, comparable to results from abuse tests on other similar systems. The tests described are intended for abuse testing any electrical energy storage system designed for use in electric or hybrid electric vehicle applications whether it is composed of batteries, capacitors, or a combination of the two.

Doughty, Daniel Harvey; Crafts, Chris C.

2006-08-01T23:59:59.000Z

455

LNG Vehicle High-Pressure Fuel System and ''Cold Energy'' Utilization  

Science Conference Proceedings (OSTI)

A high-pressure fuel system for LNG vehicles with direct-injection natural gas engines has been developed and demonstrated on a heavy-duty truck. A new concept for utilizing the ''cold energy'' associated with LNG vehicles to generate mechanical power to drive auxiliary equipment (such as high-pressure fuel pumps) has also been developed and demonstrated in the laboratory. The high-pressure LNG fuel system development included the design and testing of a new type of cryogenic pump utilizes multiple chambers and other features to condense moderate quantities of sucked vapor and discharge supercritical LNG at 3,000 to 4,000 psi. The pump was demonstrated on a Class 8 truck with a Westport high-pressure direct-injection Cummins ISX engine. A concept that utilizes LNG's ''cold energy'' to drive a high-pressure fuel pump without engine attachments or power consumption was developed. Ethylene is boiled and superheated by the engine coolant, and it is cooled and