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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
to obtain the most current and comprehensive results.


1

Vehicle Technologies Office: Propulsion Systems  

Broader source: Energy.gov [DOE]

Vehicle Technologies Office research focuses much of its effort on improving vehicle fuel economy while meeting increasingly stringent emissions standards. Achieving these goals requires a...

2

Vehicle Technologies Office: Propulsion Materials  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

3

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

4

Integrated Mathematical Modeling Software Series of Vehicle Propulsion...  

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

Mathematical Modeling Software Series of Vehicle Propulsion System: (1) Tractive Effort (T sub ew) of Vehicle Road WheelTrack Sprocket Integrated Mathematical Modeling Software...

5

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

SciTech Connect (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

6

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

SciTech Connect (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

7

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

SciTech Connect (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

8

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

SciTech Connect (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

9

High performance path following for marine vehicles using azimuthing podded propulsion .  

E-Print Network [OSTI]

??Podded propulsion systems offer greater maneuvering possibilities for marine vehicles than conventional shaft and rudder systems. As the propulsion unit rotates about its vertical axis… (more)

Greytak, Matthew B. (Matthew Bardeen)

2006-01-01T23:59:59.000Z

10

Hypersonic missile propulsion system  

SciTech Connect (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

11

Heavy Vehicle Propulsion System Materials Program semiannual progress report for October 1996 through March 1997  

SciTech Connect (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 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 designers; 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.

NONE

1997-07-01T23:59:59.000Z

12

Vehicle Technologies Office: Hybrid and Vehicle Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

13

Control of a Linear Switched Reluctance Motor as a Propulsion System for Autonomous Railway Vehicles  

E-Print Network [OSTI]

Control of a Linear Switched Reluctance Motor as a Propulsion System for Autonomous Railway) and the linear switched reluctance motor (LSRM). Switched reluctance motors generally offer a very simple issue with the switched reluctance motors is the highly nonlinear magnetisation characteristic

Paderborn, Universität

14

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

SciTech Connect (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

15

High performance path following for marine vehicles using azimuthing podded propulsion  

E-Print Network [OSTI]

Podded propulsion systems offer greater maneuvering possibilities for marine vehicles than conventional shaft and rudder systems. As the propulsion unit rotates about its vertical axis to a specified azimuth angle, the ...

Greytak, Matthew B. (Matthew Bardeen)

2006-01-01T23:59:59.000Z

16

Vehicle Technologies Office: 2012 Propulsion Materials R&D Annual...  

Broader source: Energy.gov (indexed) [DOE]

Propulsion Materials R&D Annual Progress Report Vehicle Technologies Office: 2013 Propulsion Materials R&D Annual Progress Report Low-Cost Direct Bonded Aluminum (DBA) Substrates...

17

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

18

Electric Motors for Vehicle Propulsion; Elektriska motorer för fordonsframdrivning.  

E-Print Network [OSTI]

?? This work is intended to contribute with knowledge to the area of electic motorsfor propulsion in the vehicle industry. This is done by first… (more)

Larsson, Martin

2014-01-01T23:59:59.000Z

19

A new marine propulsion system  

Science Journals Connector (OSTI)

A new marine propulsion system is proposed. A small liquid sodium ... thruster combined with spray-water thruster works as propulsion. The configuration and characteristics of this system are described. Such a nu...

Wei-shi Han; Tao Liu

2003-06-01T23:59:59.000Z

20

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

Broader source: Energy.gov [DOE]

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

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

Electric propulsion motor for marine vehicles  

SciTech Connect (OSTI)

An electric propulsion motor for marine vehicles is described comprising: a disk-shaped rotor and two coaxial disk-shaped stators, the rotor being separated from each of the stators in an axial direction by an air gap; the rotor including a plurality of permanent magnets that produce a first magnetic field; each stator comprising an armature winding that is connected to a source of electrical current to produce a second magnetic field, the first and second magnetic fields being capable of interacting to create an electromagnetic torque; means for coupling the rotor to a propeller shaft for transferring the torque from the rotor to the shaft, and means for detecting the angle of the shaft; a current control means for receiving a current control signal and for employing pulse width modulation to control the source of electrical current; the current control means including means for storing compensation information related to torque variations that are a function of shaft angle; the current control means further including means connected and responsive to the shaft angle detecting means for selecting the compensation information as a function of shaft angle and means for combining the compensation information with the current control signal to control the source of electrical current such that the torque variations that are a function of shaft angle are minimized; and wherein the means for coupling the rotor to the propeller shaft includes means within the motor for isolating the shaft from sound produced by the motor.

Dade, T.B.; Leiding, K.W.; Mongeau, P.P.; Piercey, M.S.

1993-07-20T23:59:59.000Z

22

Heavy Vehicle Propulsion Materials: Recent Progress and Future Plans  

SciTech Connect (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

23

High Fidelity Radiative Thermal Transport Simulations of a Scramjet Propulsion System.  

E-Print Network [OSTI]

??Scramjets are a type of air breathing propulsion system that have the potential to efficiently provide thrust for atmospheric vehicles at high speeds. Defining the… (more)

Irvine, Adam Glenn

2013-01-01T23:59:59.000Z

24

Full Fuel-Cycle Comparison of Forklift Propulsion Systems | Department...  

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

Full Fuel-Cycle Comparison of Forklift Propulsion Systems Full Fuel-Cycle Comparison of Forklift Propulsion Systems This report examines forklift propulsion systems and addresses...

25

HybriDrive Propulsion System  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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) *

26

Design and Control of the Induction Motor Propulsion of an Electric Vehicle  

E-Print Network [OSTI]

Design and Control of the Induction Motor Propulsion of an Electric Vehicle B. Tabbache1,2 , A for presizing the induction motor propulsion of an Electric Vehicle (EV). Based on the EV desired performances for different induction motor-based EVs using a siding mode control technique. Index Terms--Electric Vehicle (EV

Brest, Université de

27

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

28

The Gasdynamic Mirror Fusion Propulsion System -- Revisited  

SciTech Connect (OSTI)

Many of the previous studies assessing the capability of the gasdynamic mirror (GDM) fusion propulsion system employed analyses that ignored the 'ambipolar' potential. This electrostatic potential arises as a result of the rapid escape of the electrons due to their small mass. As they escape, they leave behind an excess positive charge which manifests itself in an electric field that slows down the electrons while speeding up the ions until their respective axial diffusions are equalized. The indirect effect on the ions is that their confinement time is reduced relative to that of zero potential, and hence the plasma length must be increased to accommodate that change. But as they emerge from the thruster mirror - which serves as a magnetic nozzle - the ions acquire an added energy equal to that of the potential energy, and that in turn manifests itself in increased specific impulse and thrust. We assess the propulsive performance of the GDM thruster, based on the more rigorous theory, by applying it to a round trip Mars mission employing a continuous burn acceleration/deceleration type of trajectory. We find that the length of the device and travel time decrease with increasing plasma density, while the total vehicle mass reaches a minimum at a plasma density of 3 x 1016 cm-3. At such a density, and an initial DT ion temperature of 10 keV, a travel time of 60 days is found to be achievable at GDM propulsion parameters of about 200,000 seconds of specific impulse and approximately 47 kN of thrust.

Kammash, Terry [Department of Nuclear Engineering and Radiological Sciences, University of Michigan, 2355 Bonisteel Blvd, Ann Arbor, MI 48109 (United States); Tang, Ricky [Department of Aerospace Engineering, University Michigan, 1320 Beal Ave, Ann Arbor, MI 48109 (United States)

2005-02-06T23:59:59.000Z

29

Design tool needs for space nuclear propulsion systems  

SciTech Connect (OSTI)

The interest in a return trip for humans to the moon and a pioneering voyage to Mars has rekindled interest in the use of nuclear reactors to provide propulsion for both piloted and robotic space vehicles. Two types of nuclear reactor-based propulsion systems are currently envisioned: nuclear thermal propulsion (NTP) and nuclear electric propulsion (NEP). The former relies on the direct heating and exhaust of a propellant within the core of the reactor, while the latter utilizes ion thruster engines for propulsion, and the nuclear reactor supplies the large amount of electrical power required to drive the engines. Another direct contrast between the NTP and NEP concepts is the length of reactor operation. The NTP nuclear rocket core is required to produce large amounts of thermal power for relatively short bursts (on the order of minutes to hours), and the NEP reactor core operates for a much longer period of time (on the order of days to months) with a steady-state electrical power output. The design of these types of nuclear reactor systems requires the use of specific analysis tools, some of which already exist and others that need considerable development. The general areas in which design tools are needed in the development of systems for space nuclear propulsion include the following: (1) neutronics design - both steady-state and transient applications including thermal feedback effects; (2) thermal-hydraulics design - again, both steady-state and transient applications with coupling to and from the neutronics design codes; (3) materials analysis tools - due to the high temperatures and high stresses required for efficient propulsion operation, increased importance will be placed on understanding the material responses; and (4) systems analysis - these codes allow optimizaiton of the entire propulsion system.

Klein, A.C. (Oregon State Univ., Corvallis (United States)); Lewis, B.R. (Atom Analysis, Inc., Portland, OR (United States))

1992-01-01T23:59:59.000Z

30

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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...

31

Self Excited Vibration in a Specialised Electric Propulsion System  

Science Journals Connector (OSTI)

Special marine propulsion applications demand efficient manoeuvrability under extreme conditions. ... , vibration resonance and radiated noise from the propulsion shafting system must be kept to a ... purpose ves...

Don Chool Lee; Ronald D. Barro

2014-09-01T23:59:59.000Z

32

Vehicle Technologies Office: 2013 Propulsion Materials R&D Annual Progress Report  

Broader source: Energy.gov [DOE]

This report describes the progress made during 2013 on the research and development projects funded by the Propulsion Materials subprogram in the Vehicle Technologies Office. Past year's reports are listed on the Annual Progress Reports page.

33

Integration of Electric Propulsion Systems with Spacecraft An Overview  

E-Print Network [OSTI]

electric propulsion systems are currently being developed ­ ranging from high-power (i.e., >10 kW) systems-propulsion systems to be used on small satellites? In the context of direct-drive electric propulsion? 1 Research1 Integration of Electric Propulsion Systems with Spacecraft ­ An Overview Thomas M. Liu1

Walker, Mitchell

34

Vehicle & Systems Simulation & Testing  

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

penetration of advanced vehicles and systems to displace petroleum consumption, reduce GHG emissions, and achieve vehicle electrification goals. Evaluate technology targets...

35

High power density propulsion/power system for underwater applications  

SciTech Connect (OSTI)

This patent describes a drive system for an underwater vehicle utilizing open Rankine thermodynamic cycle system having water as working fluid; steam generation means for receiving the working fluid and converting the working fluid to steam; an energy converter adapted to receive the steam and drive a propulsion means; a mixing condenser adapted to receive the steam exits the energy converter and condense the steam to a liquid; means for introducing water into the mixing condensers from a source external to the Rankine cycle, the water mixing with the working fluid to form mixed work fluid.

Blau, A.

1992-06-02T23:59:59.000Z

36

Abstract--A fish-like propulsion system seems to be an interesting and efficient alternative to propellers in small  

E-Print Network [OSTI]

1 Abstract--A fish-like propulsion system seems to be an interesting and efficient alternative. Finally there is a description of the control system implementation for the tail's motion. Index terms--Fish propulsion, underwater robot, fish design. I. INTRODUCTION LTHOUGH almost all marine vehicles use propellers

Papadopoulos, Evangelos

37

GLC Analysis of Organic Chelating Agents in Steam Propulsion Systems  

Science Journals Connector (OSTI)

......Chelating Agents in Steam Propulsion Systems by Paul J. Sniegoski...iminodi- acetic acid) in steam propulsion systems. For chromatogra...as an addi- tive to steam propulsion systems to prevent build-up...Fourth Internaval Conference on Marine Cor- rosion, Naval Research......

Paul J. Sniegoski; David L. Venezky

1974-06-01T23:59:59.000Z

38

Vehicle Technologies Office: Hybrid and Vehicle Systems  

Broader source: Energy.gov [DOE]

Hybrid and vehicle systems research provides an overarching vehicle systems perspective to the technology research and development (R&D) activities of the U.S. Department of Energy's (DOE's)...

39

H? controller and bumpless transfer design for marine propulsion system  

Science Journals Connector (OSTI)

A method for controller design and switching controller without bump effect has been proposed for a marine propulsion system with diesel engine used as propeller prime-mover. Due to different regimens operation of ship propulsion, it is common practice ... Keywords: H controller, bumpless transfer, ship propulsion system

M. J. Lopez; L. Garcia; J. Lorenzo; A. Consegliere

2009-12-01T23:59:59.000Z

40

CMC intake ramp for hypersonic propulsion systems  

SciTech Connect (OSTI)

An alternative technology to produce CMC structural components with lower costs and shorter manufacturing times has been developed at the DLR. The process is based on liquid silicon infiltration (LSI) into porous carbon/carbon resulting in a C/C-SiC material whereby the load carrying fibres are internally protected against oxidation by SiC. The material`s adequate strength levels and the high reproducibility of the state-of-the-art process now allows the realization of CMC components. Representing a very complex structure of high integrity, an intake ramp for a hypersonic propulsion system has been designed, manufactured and tested, which is described in this paper.

Kochendoerfer, R.; Krenkel, W. [Institute of Structures and Design, Stuttgart, (Germany)

1995-12-01T23:59:59.000Z

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.


41

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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...

42

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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...

43

Heatpipe space power and propulsion systems  

SciTech Connect (OSTI)

Safe, reliable, low-mass space power and propulsion systems could have numerous civilian and military applications. This paper discusses two fission-powered concepts: the Heatpipe Power System (HPS) that provides power only, and the Heatpipe Bimodal System (HBS) that provides both power and thermal propulsion. Both concepts have 10 important features. First, only existing technology and recently tested fuel forms are used. Second, fuel can be removed whenever desired, greatly facilitating system fabrication and handling. Third, full electrically heated system testing is possible, with minimal operations required to replace the heaters with fuel and ready the system for launch. Fourth, the systems are passively subcritical during launch accidents. Fifth, a modular approach is used, and most technical issues can be resolved with inexpensive module tests. Sixth, bonds between dissimilar metals are minimized. Seventh, there are no single point failures during power mode operation. Eighth, fuel burnup rate is quite low to help ensure greater than 10-year system life. Ninth, there are no pumped coolant loops, and the systems can be shut down and restarted without coolant freeze/thaw concerns. Finally, a full ground nuclear test is not needed, and development costs will be low. The baseline HPS uses SNAP-10A-style thermoelectric power converters to produce 5 kWe at a system mass of about 500 kg. The unicouple thermoelectric converters have a hot shoe temperature of 1275 K and reject waste heat at 775 K. This type of thermoelectric converter has been used extensively by the space program, demonstrating an operational lifetime of decades. At higher thermal power, the same core can produce over 10 kWe using thermoelectric converters, and over 50 kWe using advanced power conversion systems.

Houts, M.G.; Poston, D.I.; Ranken, W.A.

1995-07-01T23:59:59.000Z

44

Large eddy simulation modelling of combustion for propulsion applications  

Science Journals Connector (OSTI)

...but also for power generation and for marine applications. The current trend is to...travel are the vehicle design and the propulsion system, and how to integrate them. Two types of propulsion systems, ramjets (Fry 2004) and scramjets...

2009-01-01T23:59:59.000Z

45

Performance of a boundary layer ingesting propulsion system  

E-Print Network [OSTI]

This thesis presents an assessment of the aerodynamic performance of an aircraft propulsion system, with embedded engines, in the presence of aircraft fuselage boundary layer ingestion (BLI). The emphasis is on defining ...

Plas, Angélique (Angélique Pascale)

2006-01-01T23:59:59.000Z

46

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

Broader source: Energy.gov (indexed) [DOE]

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

47

A comprehensive study of electric propulsion system for vehicular application  

Science Journals Connector (OSTI)

Electrification of vehicular systems partial or complete has emerged as an attractive and sustainable alternative for futuristic transportation systems. This so-called electric vehicular technology (EVT) has engaged auto-manufacturers and researchers to primarily focus on fuel economy driving range performance and costs. These parameters are influenced by the design and performance of electric propulsion system (EPS) for vehicular application and its suitable integration with various electrical and mechanical apparatus. This paper primarily presents a comprehensive study of EPS. To present the study in synthesis a survey of important constituents of EPS is first carried out with techno-economic perspectives. Contemporary configurations of conventional and electrified vehicles are then discussed along with their respective advantages and limitations. EPS is considered to be the heart of EVT and therefore components of a standard EPS are discussed and comparative analyses are carried out in terms of present trends ongoing technological advancements and future challenges. In addition power flow control and management algorithms for EVT are also briefed.

Lalit Kumar

2014-01-01T23:59:59.000Z

48

Vehicle Technologies Office: 2010 Vehicle and Systems Simulation...  

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

Office: 2010 Vehicle and Systems Simulation and Testing R&D Annual Progress Report Vehicle Technologies Office: 2010 Vehicle and Systems Simulation and Testing R&D Annual Progress...

49

Vehicle Technologies Office: 2012 Vehicle and Systems Simulation...  

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

2 Vehicle and Systems Simulation and Testing R&D Annual Progress Report Vehicle Technologies Office: 2012 Vehicle and Systems Simulation and Testing R&D Annual Progress Report FY...

50

Vehicle Technologies Office: 2013 Vehicle and Systems Simulation...  

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

3 Vehicle and Systems Simulation and Testing R&D Annual Progress Report Vehicle Technologies Office: 2013 Vehicle and Systems Simulation and Testing R&D Annual Progress Report FY...

51

Vehicle Technologies Office: 2011 Vehicle and Systems Simulation...  

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

1 Vehicle and Systems Simulation and Testing R&D Annual Progress Report Vehicle Technologies Office: 2011 Vehicle and Systems Simulation and Testing R&D Annual Progress Report FY...

52

Vehicle & Systems Simulation & Testing | Department of Energy  

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

Vehicle & Systems Simulation & Testing Vehicle & Systems Simulation & Testing 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and...

53

Torque-Power-Speed Hybrid Control of Marine Electric Propulsion System  

Science Journals Connector (OSTI)

The conventional electric propulsion system is usually aimed at controlling the shaft speed only, without taking advantages of the electric propulsion motor into control strategies. This paper designs a SSP for marine electric propulsion system with ... Keywords: control, ship, marine electric propulsion, hybrid control

Guichen Zhang; Jie Ma

2010-05-01T23:59:59.000Z

54

Hydrocarbon-fueled internal combustion engines: "the worst form of vehicle propulsion... except for all the other forms"  

E-Print Network [OSTI]

Hydrocarbon-fueled internal combustion engines: "the worst form of vehicle propulsion... except of Southern California, Los Angeles, CA 90089-1453 Introduction Hydrocarbon-fueled internal combustion engines. For the purposes of this paper: An internal combustion engine is a heat engine (a device in which thermal energy

55

Photon Tools for Fuel Spray Studies in Aerospace Propulsion Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

56

Lithium/iron sulfide batteries for electric-vehicle propulsion and other applications. Progress report, October 1979-March 1980  

SciTech Connect (OSTI)

The research and development activities of the program at Argonne National Laboratory (ANL) on lithium/iron sulfide batteries during the period October 1979-March 1980 is described. Although the major emphasis is currently on batteries for electric-vehicle propulsion, stationary energy-storage applications are also under investigation. The individual battery cells, which operate at 400 to 500/sup 0/C, are of a vertically oriented, prismatic design with two or more positive electrodes of FeS or FeS/sub 2/, facing negative electrodes of lithium-aluminum or lithium-silicon alloy, and molten LiCl-KCl electrolyte. The ANL program consists of cell chemistry studies, materials engineering, and component and auxiliary systems development. Important elements of this program are studies of the effects of design modifications on cell performance and post-test examinations of cells. During the reporting period, cell and battery development work has been aimed primarily at the first phase of the Mark II electric-vehicle battery program, which consists of an effort to develop high-reliability cells having boron nitride felt separators. Later in the Mark II program, the cells will be tested in 10-cell modules. Work on stationary energy-storage batteries during this period has consisted mainly of conceptual design studies. 23 figures, 9 tables.

None

1980-08-01T23:59:59.000Z

57

Flex Fuel Vehicle Systems  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

58

A Novel Simulation System for Marine Main Diesel Propulsion Remote Control  

Science Journals Connector (OSTI)

The purpose of the paper is to develop a novel simulation system for ship propulsion plant. The nonlinear mathematical model of main propulsion system of a large container ship is established, consisting of the large low speed two-stroke diesel engine, ... Keywords: simulation system, large-scale low-speed two-stroke diesel engine, marine main diesel propulsion

Yang Yang; Chen Guo; Jian-bo Sun; De-wen Yan

2011-11-01T23:59:59.000Z

59

Effect of chordwise flexibility and depth of submergence on an oscillating plate underwater propulsion system  

E-Print Network [OSTI]

by fish and some other marine animals. The primary attention was the propulsive characteristics propulsion system by Oleksandr Barannyk B.Sc. in Mathematics and Computer Sciences, Poltava State University underwater propulsion system by Oleksandr Barannyk B.Sc. in Mathematics and Computer Sciences, Poltava State

Victoria, University of

60

Individual characteristics and stated preferences for alternative energy sources and propulsion technologies in vehicles: A discrete choice analysis for Germany  

Science Journals Connector (OSTI)

With respect to the German goal of a transition to a lead market for electromobility within a short time period, this paper empirically examines the preferences for alternative energy sources or propulsion technologies in vehicles and particularly for electric vehicles. The data stem from a stated preference discrete choice experiment with 598 potential German car buyers. In order to simulate a realistic future purchase situation, seven vehicle types were incorporated in each of the six choice sets, i.e. hybrid, gas, biofuel, hydrogen, and electric vehicles besides common gasoline and diesel vehicles. The econometric analysis with flexible multinomial probit models reveals that potential car buyers in Germany currently have a low stated preference for electric, hydrogen, and hybrid vehicles. While our paper also discusses the impact of common vehicle attributes such as purchase price or service station availability, it particularly considers the effect of socio-demographic and environmental awareness variables. The estimation results reveal that younger potential car buyers have a higher stated preference for hydrogen and electric vehicles, males have a higher stated choice of hydrogen vehicles, and environmentally aware potential car buyers have a higher stated preference for hydrogen and electric vehicles. These results suggest that common policy instruments such as the promotion of research and development, taxation, or subsidization in the field of electromobility could be supplemented by strategies to increase the social acceptance of alternative vehicle types that are directly oriented to these population groups. Methodologically, our study highlights the importance of the inclusion of taste persistence across the choice sets and a high number of random draws in the Geweke–Hajivassiliou–Keane simulator in the simulated maximum likelihood estimation of the multinomial probit models.

Andreas Ziegler

2012-01-01T23:59:59.000Z

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.


61

Enabling Green Energy and Propulsion Systems via Direct Noise Computation |  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

62

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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,

63

Optimization of Marine Propulsion System’s Alignment for Aged Ships  

Science Journals Connector (OSTI)

The paper presents a numerical method of identification parameters of marine power transmission system’s alignment in the ... engine and the second one with slow-speed propulsion system. Multivariant computations...

Lech Murawski; Wieslaw Ostachowicz

2010-01-01T23:59:59.000Z

64

Integrated Design Platform for Marine Electric Propulsion System  

Science Journals Connector (OSTI)

As the modern vessels have become more complex comprising an increasing number of heterogeneous interdependent subsystems. This increased complexity requires new methods for the design and operation of these marine systems. An integrated design platform for marine electric propulsion system which aims to characteristic analysis of plants and systems, DCS control algorithm trim, intelligent control strategy develop of automation and operation is presented in this paper. The design process and thoughts is described in details, and the current work is introduced. The main focus of this paper is in the development of marine integrated design platform which seeks to shift ship design to a distribution, intelligent control architecture through increased automation.

Chen Yutao; Zeng Fanming; Wu Jiaming

2012-01-01T23:59:59.000Z

65

Propulsion Materials R&D | Clean Energy | ORNL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

66

Flex Fuel Vehicle Systems  

Broader source: Energy.gov (indexed) [DOE]

& Variable Advanced Management Injection Injection Sensors Control Units Fuel Supply & Plastic Parts Control Transmission Engineering Gasoline Systems GSENS, GSENS-NA System...

67

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

68

New Opportunities for Outer Solar System Science using Radioisotope Electric Propulsion  

SciTech Connect (OSTI)

Today, our questions and hypotheses about the Solar System's origin have surpassed our ability to deliver scientific instruments to deep space. The moons of the outer planets, the Trojan and Centaur minor planets, the trans-Neptunian objects (TNO), and distant Kuiper Belt objects (KBO) hold a wealth of information about the primordial conditions that led to the formation of our Solar System. Robotic missions to these objects are needed to make the discoveries, but the lack of deep-space propulsion is impeding this science. Radioisotope electric propulsion (REP) will revolutionize the way we do deep-space planetary science with robotic vehicles, giving them unprecedented mobility. Radioisotope electric generators and lightweight ion thrusters are being developed today which will make possible REP systems with specific power in the range of 5 to 10 W/kg. Studies have shown that this specific power range is sufficient to perform fast rendezvous missions from Earth to the outer Solar System and fast sample return missions. This whitepaper discusses how mobility provided by REP opens up entirely new science opportunities for robotic missions to distant primitive bodies. We also give an overview of REP technology developments and the required next steps to realize REP.

Noble, Robert J.; /SLAC; Amini, Rashied; Beauchamp, Patricia M.; /Caltech, JPL; Bennett, Gary L.; /Metaspace Enterprises; Brophy, John R.; Buratti, Bonnie J.; Ervin, Joan; /Caltech, JPL; Fernandez, Yan R.; /Central Florida U.; Grundy, Will; /Lowell Observ.; Khan, Mohammed Omair; /Caltech, JPL; King, David Q.; /Aerojet; Lang, Jared; /Caltech, JPL; Meech, Karen J.; /Hawaii U.; Newhouse, Alan; Oleson, Steven R.; Schmidt, George R.; /GRC; Spilker, Thomas; West, John L.; /Caltech, JPL; ,

2010-05-26T23:59:59.000Z

69

ADVANCED RADIOISOTOPE HEAT SOURCE AND PROPULSION SYSTEMS FOR PLANETARY EXPLORATION  

SciTech Connect (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

70

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

Science Journals Connector (OSTI)

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

Chunling Xie; Conghui Zhang; Jen-Yuan James Chang

2011-06-01T23:59:59.000Z

71

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

Science Journals Connector (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

72

Method and system for vehicle refueling  

DOE Patents [OSTI]

Methods and systems are provided for facilitating refueling operations in vehicles operating with multiple fuels. A vehicle operator may be assisted in refueling the multiple fuel tanks of the vehicle by being provided one or more refueling profiles that take into account the vehicle's future trip plans, the predicted environmental conditions along a planned route, and the operator's preferences.

Surnilla, Gopichandra; Leone, Thomas G; Prasad, Krishnaswamy Venkatesh; Argarwal, Apoorv; Hinds, Brett Stanley

2012-11-20T23:59:59.000Z

73

Method and system for vehicle refueling  

SciTech Connect (OSTI)

Methods and systems are provided for facilitating refueling operations in vehicles operating with multiple fuels. A vehicle operator may be assisted in refueling the multiple fuel tanks of the vehicle by being provided one or more refueling profiles that take into account the vehicle's future trip plans, the predicted environmental conditions along a planned route, and the operator's preferences.

Surnilla, Gopichandra; Leone, Thomas G; Prasad, Krishnaswamy Venkatesh; Agarwal, Apoorv; Hinds, Brett Stanley

2014-06-10T23:59:59.000Z

74

Investigation of propulsion system for large LNG ships  

Science Journals Connector (OSTI)

Requirements to move away from coal for power generation has made LNG as the most sought after fuel source, raising steep demands on its supply and production. Added to this scenario is the gradual depletion of the offshore oil and gas fields which is pushing future explorations and production activities far away into the hostile environment of deep sea. Production of gas in such environment has great technical and commercial impacts on gas business. For instance, laying gas pipes from deep sea to distant receiving terminals will be technically and economically challenging. Alternative to laying gas pipes will require installing re-liquefaction unit on board FPSOs to convert gas into liquid for transportation by sea. But, then because of increased distance between gas source and receiving terminals the current medium size LNG ships will no longer remain economical to operate. Recognizing this business scenario shipowners are making huge investments in the acquisition of large LNG ships. As power need of large LNG ships is very different from the current small ones, a variety of propulsion derivatives such as UST, DFDE, 2-Stroke DRL and Combined cycle GT have been proposed by leading engine manufacturers. Since, propulsion system constitutes major element of the ship's capital and life cycle cost, which of these options is most suited for large LNG ships is currently a major concern of the shipping industry and must be thoroughly assessed. In this paper the authors investigate relative merits of these propulsion options against the benchmark performance criteria of BOG disposal, fuel consumption, gas emissions, plant availability and overall life cycle cost.

R P Sinha; Wan Mohd Norsani Wan Nik

2012-01-01T23:59:59.000Z

75

Integrated Vehicle Thermal Management Systems (VTMS) Analysis...  

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

Integrated Vehicle Thermal Management Power Electronic Thermal System Performance and Integration Characterization and Development of Advanced Heat Transfer Technologies...

76

Fault detection and diagnosis of a gearbox in marine propulsion systems using bispectrum analysis and artificial neural networks  

Science Journals Connector (OSTI)

A marine propulsion system is a very complicated system composed ... to the impact of the other components in marine propulsion systems. To monitor the gear conditions, ... fault features of the vibrant signal of...

Zhixiong Li; Xinping Yan; Chengqing Yuan…

2011-03-01T23:59:59.000Z

77

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

78

Advanced Propulsion Technology Strategy | Department of Energy  

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

Propulsion Technology Strategy Advanced Propulsion Technology Strategy GM is also developing new classes of electrically driven vehicles, leveraging technology first used in their...

79

Full Fuel-Cycle Comparison of Forklift Propulsion Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

80

Full Fuel-Cycle Comparison of Forklift Propulsion Systems  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

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

Design, fabrication and analysis of a body-caudal fin propulsion system for a microrobotic fish  

E-Print Network [OSTI]

Design, fabrication and analysis of a body-caudal fin propulsion system for a microrobotic fish Kyu and fabrica- tion of a centimeter-scale propulsion system for a robotic fish. The key to the design are customized to provide the necessary work output for the microrobotic fish. The flexure joints, electrical

Wood, Robert

82

RESEARCH TRAINING GROUP GRK 1095/1: "AERO-THERMODYNAMIC DESIGN OF A SCRAMJET PROPULSION SYSTEM"  

E-Print Network [OSTI]

RESEARCH TRAINING GROUP GRK 1095/1: "AERO-THERMODYNAMIC DESIGN OF A SCRAMJET PROPULSION SYSTEM" U conception. In this context only the use of a scramjet-propulsion system meets all the aerodynamic it must be mentioned that scramjet-technologies are one of the key technologies for hypersonic flight

83

Complex System Method to Assess Commercial Vehicle Fuel Consumption...  

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

Complex System Method to Assess Commercial Vehicle Fuel Consumption Complex System Method to Assess Commercial Vehicle Fuel Consumption Two case studies for commercial vehicle...

84

2014 Annual Merit Review Results Report - Hybrid Vehicle Systems...  

Energy Savers [EERE]

Hybrid Vehicle Systems Technologies 2014 Annual Merit Review Results Report - Hybrid Vehicle Systems Technologies Merit review of DOE Vehicle Technologies research activities...

85

Overview of Vehicle and Systems Simulation and Testing | Department...  

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

More Documents & Publications Overview of Vehicle and Systems Simulation and Testing Overview of Vehicle and Systems Simulation and Testing Vehicle Technologies Office...

86

Vehicle and Systems Simulation and Testing | Department of Energy  

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

Vehicle and Systems Simulation and Testing Vehicle and Systems Simulation and Testing 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation...

87

Vehicle and Systems Simulation and Testing | Department of Energy  

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

Vehicle and Systems Simulation and Testing Vehicle and Systems Simulation and Testing Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on...

88

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

89

US DRIVE Vehicle Systems and Analysis Technical Team Roadmap...  

Energy Savers [EERE]

US DRIVE Driving Research and Innovation for Vehicle Efficiency and Energy Sustainability Partnership Plan Vehicle Technologies Office: 2013 Vehicle and Systems Simulation...

90

Research on propeller dynamic load simulation system of electric propulsion ship  

Science Journals Connector (OSTI)

A dynamic marine propeller simulation system was developed, which is ... requirement of theory research and engineering design of marine electric propulsion system. By applying an actual ship parameter...J? ? K ...

Hui Huang ? ?; Ai-di Shen ???; Jian-xin Chu ???

2013-04-01T23:59:59.000Z

91

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, Ph. D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

92

Advanced Vehicles Group: Center for Transportation Technologies and Systems  

SciTech Connect (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

93

Topology-Based Vehicle Systems Modelling.  

E-Print Network [OSTI]

??The simulation tools that are used to model vehicle systems have not been advancing as quickly as the growth of research and technology surrounding the… (more)

Yam, Edward

2013-01-01T23:59:59.000Z

94

Vehicle Systems Integration Laboratory Accelerates Powertrain Development  

ScienceCinema (OSTI)

ORNL's Vehicle Systems Integration (VSI) Laboratory accelerates the pace of powertrain development by performing prototype research and characterization of advanced systems and hardware components. The VSI Lab is capable of accommodating a range of platforms from advanced light-duty vehicles to hybridized Class 8 powertrains with the goals of improving overall system efficiency and reducing emissions.

None

2014-06-25T23:59:59.000Z

95

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

SciTech Connect (OSTI)

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

96

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

SciTech Connect (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

97

Dynamic analysis and design of air spring mounting system for marine propulsion system  

Science Journals Connector (OSTI)

Abstract Marine propulsion unit (MPU) is one of the dominant vibration and noise sources onboard ship. Its vibration can be attenuated effectively by isolating MPU with low-frequency mounting system. But this is difficult to implement due to the stringent requirement of MPU alignment with the propulsion shafting. In this paper a novel air spring mounting system (ASMS) for propulsion system is proposed consisting of air spring subsystem, alignment control subsystem and safety protection subsystem. The load distribution optimization method and dynamic model of ASMS are presented. The factors that affect system stability and natural frequencies are analyzed, as well as the design measures to enhance system performance. A theoretical model is presented to estimate the isolation effect of ASMS. The monitoring model of alignment between MPU and propulsion shafting is established, followed by the alignment control algorithm and converge rule which assures the fast and uniform convergence of both air springs? load distribution and alignment control process. Safety protection mechanism is designed to ensure that the MPU can operate safely in case of ASMS failure or other extreme circumstances. A scaled ASMS prototype is manufactured and tested on a special experimental setup. Experimental results validate the effectiveness of theoretical models and show that the performance of ASMS satisfies the operation requirements of MPU.

Lin He; Wei Xu; Wenjun Bu; Liang Shi

2014-01-01T23:59:59.000Z

98

Adaptive control of hypersonic vehicles  

E-Print Network [OSTI]

The guidance, navigation and control of hypersonic vehicles are highly challenging tasks due to the fact that the dynamics of the airframe, propulsion system and structure are integrated and highly interactive. Such a ...

Gibson, Travis Eli

2008-01-01T23:59:59.000Z

99

Advanced Fusion Reactors for Space Propulsion and Power Systems  

SciTech Connect (OSTI)

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

100

November 18, 2009 22:50 Vehicle System Dynamics VSD09 Vehicle System Dynamics  

E-Print Network [OSTI]

November 18, 2009 22:50 Vehicle System Dynamics VSD09 Vehicle System Dynamics Vol. 00, No. 00), involving the steering and braking actuators. This VDSC aims at improving automotive vehicle yaw stability the rear wheels) and use the steering actuator only if it is necessary (e.g. if the braking system

Boyer, Edmond

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

James Walker develops Walkersele D8 – a new rotary lip seal for marine propulsion systems  

Science Journals Connector (OSTI)

Walkersele D8 is a new design of rotary lip seal developed by James Walker & Co Ltd for use in marine propulsion systems to protect bearings from water ingress or prevent lubricant from leaking into the marine environment.

2012-01-01T23:59:59.000Z

102

Image-based Vehicle Classification System  

E-Print Network [OSTI]

Electronic toll collection (ETC) system has been a common trend used for toll collection on toll road nowadays. The implementation of electronic toll collection allows vehicles to travel at low or full speed during the toll payment, which help to avoid the traffic delay at toll road. One of the major components of an electronic toll collection is the automatic vehicle detection and classification (AVDC) system which is important to classify the vehicle so that the toll is charged according to the vehicle classes. Vision-based vehicle classification system is one type of vehicle classification system which adopt camera as the input sensing device for the system. This type of system has advantage over the rest for it is cost efficient as low cost camera is used. The implementation of vision-based vehicle classification system requires lower initial investment cost and very suitable for the toll collection trend migration in Malaysia from single ETC system to full-scale multi-lane free flow (MLFF). This project ...

Ng, Jun Yee

2012-01-01T23:59:59.000Z

103

NREL: Learning - Advanced Vehicle Systems and Components  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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:

104

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...

Henry, Tracy Lynn

2012-06-07T23:59:59.000Z

105

Vehicle and Systems Simulation and Testing | Department of Energy  

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

and Systems Simulation and Testing Vehicle and Systems Simulation and Testing 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation...

106

Overview of Vehicle and Systems Simulation and Testing | Department...  

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

More Documents & Publications Overview of Vehicle and Systems Simulation and Testing Vehicle and Systems Simulation and Testing Volvo Super Truck Overview and Approach...

107

Hypersonic MHD Propulsion System Integration for the Mercury Lightcraft  

SciTech Connect (OSTI)

Introduced herein are the design, systems integration, and performance analysis of an exotic magnetohydrodynamic (MHD) slipstream accelerator engine for a single-occupant 'Mercury' lightcraft. This ultra-energetic, laser-boosted vehicle is designed to ride a 'tractor beam' into space, transmitted from a future orbital network of satellite solar power stations. The lightcraft's airbreathing combined-cycle engine employs a rotary pulsed detonation thruster mode for lift-off and landing, and an MHD slipstream accelerator mode at hypersonic speeds. The latter engine transforms the transatmospheric acceleration path into a virtual electromagnetic 'mass-driver' channel; the hypersonic momentum exchange process (with the atmosphere) enables engine specific impulses in the range of 6000 to 16,000 seconds, and propellant mass fractions as low as 10%. The single-stage-to-orbit, highly reusable lightcraft can accelerate at 3 Gs into low Earth orbit with its throttle just barely beyond 'idle' power, or virtually 'disappear' at 30 G's and beyond. The objective of this advanced lightcraft design is to lay the technological foundations for a safe, very low cost (e.g., 1000X below chemical rockets) air and space transportation for human life in the mid-21st Century - a system that will be completely 'green' and independent of Earth's limited fossil fuel reserves.

Myrabo, L.N. [Mechanical, Aerospace, and Nuclear Engineering Dept., Rensselaer Polytechnic Institute, Troy, NY (United States); Rosa, R.J. [Department of Mechanical Engineering, Montana State University, Bozeman, MT (United States)

2004-03-30T23:59:59.000Z

108

RADIOISOTOPE-DRIVEN DUAL-MODE PROPULSION SYSTEM FOR CUBESAT-SCALE PAYLOADS TO THE OUTER PLANETS  

SciTech Connect (OSTI)

It is apparent the cost of planetary exploration is rising as mission budgets declining. Currently small scientific beds geared to performing limited tasks are being developed and launched into low earth orbit (LEO) in the form of small-scale satellite units, i.e., CubeSats. These micro- and nano-satellites are gaining popularity among the university and science communities due to their relatively low cost and design flexibility. To date these small units have been limited to performing tasks in LEO utilizing solar-based power. If a reasonable propulsion system could be developed, these CubeSat platforms could perform exploration of various extra-terrestrial bodies within the solar system engaging a broader range of researchers. Additionally, being mindful of mass, smaller cheaper launch vehicles (approximately 1,000 kgs to LEO) can be targeted. Thus, in effect, allows for beneficial exploration to be conducted within limited budgets. Researchers at the Center for Space Nuclear Research (CSNR) are proposing a low mass, radioisotope-based, dual-mode propulsion system capable of extending the exploration realm of these CubeSats out of LEO.

N. D. Jerred; T. M. Howe; S. D. Howe; A. Rajguru

2014-02-01T23:59:59.000Z

109

Vehicle Technologies Office: Annual Progress Reports  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

110

The CU Aerospace / VACCO CubeSat High Impulse Propulsion System (CHIPS) offers a miniaturized and  

E-Print Network [OSTI]

· Overall control authority: roll, pitch, yaw, +/- Z · On-orbit update of system parameters, including · System two-failure-tolerant against leakage · Life span: 2+ years from propellant load. · HighThe CU Aerospace / VACCO CubeSat High Impulse Propulsion System (CHIPS) offers a miniaturized

Carroll, David L.

111

Design methodology based on H? control theory for marine propulsion system with bumpless transfer function  

Science Journals Connector (OSTI)

In this paper we propose a control system design methodology which has two main objectives: the first one is to achieve control system specifications for a local H? controller designed for a given operation condition, and the second ... Keywords: H controller, bumpless transfer, ship propulsion system

M. J. Lopez; L. Garcia; J. Lorenzo; A. Consegliere

2010-03-01T23:59:59.000Z

112

The Use of Steady and Pulsed Detonations for Propulsion Systems  

SciTech Connect (OSTI)

Objectives of the ODWE concept studies are: demonstrate the feasibility of the oblique detonation wave engine (ODWE) for hypersonic propulsion; demonstrate the existance and stability of an oblique detonation wave in hypersonic wind tunnels; develop engineering codes which predict the performance characteristics of the ODWE including specific impulse and thrust coefficients for various operating conditions; develop multi-dimensional computer codes which can model all aspects of the ODWE including fuel injection, mixing, ignition, combustion and expansion with fully detailed chemical kinetics and turbulence models; and validate the codes with experimental data use the simulations to predict the ODWE performance for conditions not easily obtained in wind tunnels.

Adelman, H.G.; Menees, G.P.; Cambier, J.L.; Bowles, J.V.

1996-02-01T23:59:59.000Z

113

Vehicle Technologies Office: 2008 Oak Ridge Transportation Technology Program Annual Report  

Broader source: Energy.gov [DOE]

Oak Ridge National Laboratory supports the Vehicle Technologies Office by conducting work in advanced power electronics and electric machines; transportation policy and analysis; fuel economy outreach; fuels technologies; advanced combustion engines; propulsion materials; and vehicle systems.

114

Development of 1 MW-class HTS motor for podded ship propulsion system  

Science Journals Connector (OSTI)

To reduce fuel consumption and lead to a major reduction of pollution from NOx, SOx and CO2, the electric ship propulsion system is one of the most prospective substitutes for conventional ship propulsion systems. In order to spread it, innovative technologies for the improvement of the power transmission are required. The high temperature superconducting technology has the possibility for a drastic reduction of power transmission loss. Recently, electric podded propulsions have become popular for large cruise vessels, icebreakers and chemical tankers because of the flexibility of the equipment arrangement and the stern hull design, and better maneuverability in harbour, etc. In this paper, a 1 MW-class High temperature superconducting (HTS) motor with high efficiency, smaller size and simple structure, which is designed and manufactured for podded propulsion, is reported. For the case of a coastal ship driven by the optimized podded propulsion in which the 1MW HTS motor is equipped, the reductions of fluid dynamic resistance and power transmission losses are demonstrated. The present research & development has been supported by the New Energy and Industrial Technology Development Organization (NEDO).

K Umemoto; K Aizawa; M Yokoyama; K Yoshikawa; Y Kimura; M Izumi; K Ohashi; M Numano; K Okumura; M Yamaguchi; Y Gocho; E Kosuge

2010-01-01T23:59:59.000Z

115

Vehicle Technologies Office: 2010 Vehicle and Systems Simulation and Testing R&D Annual Progress Report  

Broader source: Energy.gov [DOE]

2010 annual report focusing on five main areas: modeling and simulation, component and systems evaluation, laboratory and field vehicle evaluation, codes and standards development, and heavy vehicle systems optimization.

116

Vehicle Technologies Office: 2013 Vehicle and Systems Simulation and Testing R&D Annual Progress Report  

Broader source: Energy.gov [DOE]

FY 2013 annual report focuses on the following areas: vehicle modeling and simulation, component and systems evaluations, laboratory and field evaluations, codes and standards, industry projects, and vehicle systems optimization.

117

Vehicle Technologies Office: 2011 Vehicle and Systems Simulation and Testing R&D Annual Progress Report  

Broader source: Energy.gov [DOE]

FY 2011 annual report focusing on five main areas: modeling and simulation, component and systems evaluation, laboratory and field vehicle evaluation, codes and standards development, and heavy vehicle systems optimization.

118

Vehicle Technologies Office: 2012 Vehicle and Systems Simulation and Testing R&D Annual Progress Report  

Broader source: Energy.gov [DOE]

FY 2012 annual report focusing on five main areas: modeling and simulation, component and systems evaluation, laboratory and field vehicle evaluation, codes and standards development, and heavy vehicle systems optimization.

119

Vehicle Technologies Office: FY 2004 Progress Report for Heavy Vehicle  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

120

Vehicle Technologies Office: FY 2003 Progress Report for Heavy Vehicle  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

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

Problems in developing bimodal space power and propulsion system fuel element  

SciTech Connect (OSTI)

The paper discusses design of a space nuclear power and propulsion system fuel element (PPFE) developed on the basis of an enhanced single-cell thermionic fuel element (TFE) of the 'TOPAZ-2' thermionic converter-reactor (TCR), and presents the PPFE performance for propulsion and power modes of operation. The choice of UC-TaC fuel composition is substantiated. Data on hydrogen effect on the PPFE output voltage are presented, design solutions are considered that allow to restrict hydrogen supply to an interelectrode gap (IEG). Long-term geometric stability of an emitter assembly is supported by calculated data.

Nikolaev, Yu. V.; Gontar, A. S.; Zaznoba, V. A.; Parshin, N. Ya.; Ponomarev-Stepnoi, N. N.; Usov, V. A. [Research Institute of SIA 'Lutch' Podolsk, Moscow Region, 142100 (Russian Federation); RRC 'Kurchatov Institute' Moscow, 123182 (Russian Federation)

1997-01-10T23:59:59.000Z

122

Anti-Spin Control for Marine Propulsion Systems yvind N. Smogeli1, Jostein Hansen2, Asgeir J. Srensen1 and Tor Arne Johansen2  

E-Print Network [OSTI]

Anti-Spin Control for Marine Propulsion Systems �yvind N. Smogeli1, Jostein Hansen2, Asgeir J. Sørensen1 and Tor Arne Johansen2 Abstract-- An anti-spin controller for marine propulsion systems in rough the transients in the power system and reduce the mechanical wear and tear of the propulsion system components

Johansen, Tor Arne

123

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

124

An Integrated Marine Propulsion System Utilising TRIGA{sup TM} Fuel  

SciTech Connect (OSTI)

This paper describes the reactor physics, shielding, thermal hydraulics, reactor dynamics and safety studies conducted to develop a proposed Integrated Marine Propulsion System (IMPS) utilising TRIGA{sup TM} type uranium zirconium hydride fuel. The study has demonstrated that the IMPS plant is feasible and meets the design safety principles and safety criteria imposed on the study. (authors)

Manach, G.; Monnez, J-P. [Ecole des Applications Militaires de l'Energie Atomique, Cherbourg (France); Freeman, M.J.; Newell, A.; Brushwood, J.M.; Thompson, A.; Collins, C.; Scholes, N.; Hamilton, P.J.; Beeley, P.A. [Nuclear Department/ Flagship Training Ltd, HMS Sultan, Military Road, Gosport, PO12 3BY (United Kingdom)

2004-07-01T23:59:59.000Z

125

Electric Motor Drive Selection Issues for HEV Propulsion Systems: A Comparative Study  

E-Print Network [OSTI]

Electric Motor Drive Selection Issues for HEV Propulsion Systems: A Comparative Study M. Zeraoulia1 Combustion Engine (ICE) and the electric motor to deliver power in parallel to drive the wheels. Since both the ICE and electric motor are generally coupled to the drive shaft of the wheels via two clutches

Paris-Sud XI, Université de

126

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

127

Vehicle System Impacts of Fuel Cell System Power Response Capability  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

128

Vehicle Technologies Office Merit Review 2014: Vehicle & Systems...  

Energy Savers [EERE]

& Testing Presentation given by U.S. Department of Energy at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation...

129

FY 2004 Annual Progress Report for Heavy Vehicle Systems Optimization  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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......................................................................................................

130

PSU TOYOTA ELECTRIC VEHICLE PROGRAM POLICY JULY 2010  

E-Print Network [OSTI]

on the environment. Generally classified as sustainable mobility or green transport, these approaches include walking and cycling, transitoriented development, innovative vehicles with propulsion and fuel systems with low and zero carbon emissions, and building transport systems that are fuelefficient, spacesaving

Bertini, Robert L.

131

2007 Heavy Vehicle Systems Optimization Program Annual Report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

132

Overview of Vehicle and Systems Simulation and Testing | Department...  

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

n03vssslezak2012o.pdf More Documents & Publications Vehicle & Systems Simulation & Testing Overview of Vehicle and Systems Simulation and Testing Overview of the U.S. DOE...

133

Techno-economic and environmental risk analysis for advanced marine propulsion systems  

Science Journals Connector (OSTI)

A Techno-economic, Environmental and Risk Analysis (TERA) computational method has been developed for marine propulsion systems. The method comprises several numerical models which simulate the life cycle operation of marine gas turbines installed on marine vessels. Using a system-of-systems approach, the effect of operational profile can be taken into consideration in the assessment of a novel prime mover. Stochastic estimates of the powerplant’s life cycle net present cost are generated. The ship performance model plays a central role in the TERA method. This is an integrated virtual marine vessel operating environment that allows the calculation of engine performance and exhaust emissions (nitric oxide (NOx), carbon monoxide CO, carbon dioxide (CO2) and unburned hydrocarbon (UHC)) for a given trip. The life of the gas turbine is assessed through a creep-life prediction method, which plays a significant role on the maintenance cost calculation in the economic model. The economic model predicts net present cost over the operating life of the vessel using stochastic analysis of the earning capacity of the ship powered by the chosen prime mover. The TERA simulation of a 25 MW marine gas turbine powering a RoPax fast ferry in an integrated full electric propulsion system is presented as an illustration of the method. The example includes aspects of the systemic analysis of engine and ship performance, accompanied by environmental effect and engine life prediction, coupled with an economic feasibility stochastic study of the selected propulsion system under several journey and economic scenarios.

G. Doulgeris; T. Korakianitis; P. Pilidis; E. Tsoudis

2012-01-01T23:59:59.000Z

134

DUAL-MODE PROPULSION SYSTEM ENABLING CUBESAT EXPLORATION OF THE SOLAR SYSTEM NASA Innovative Advanced Concepts (NIAC) Phase I Final Report  

SciTech Connect (OSTI)

It is apparent the cost of planetary exploration is rising as mission budgets declining. Currently small scientific beds geared to performing limited tasks are being developed and launched into low earth orbit (LEO) in the form of small-scale satellite units, i.e., CubeSats. These micro- and nano-satellites are gaining popularity among the university and science communities due to their relatively low cost and design flexibility. To date these small units have been limited to performing tasks in LEO utilizing solar-based power. If a reasonable propulsion system could be developed, these CubeSat platforms could perform exploration of various extra-terrestrial bodies within the solar system engaging a broader range of researchers. Additionally, being mindful of mass, smaller cheaper launch vehicles (~1,000 kgs to LEO) can be targeted. This, in effect, allows for beneficial explora-tion to be conducted within limited budgets. Researchers at the Center for Space Nuclear Re-search (CSNR) are proposing a low mass, radioisotope-based, dual-mode propulsion system capable of extending the exploration realm of these CubeSats out of LEO. The proposed radioisotope-based system would leverage the high specific energies [J/kg] associated with radioisotope materials and enhance their inherent low specific powers [W/g]. This is accomplished by accumulating thermal energy from nuclear decay within a central core over time. This allows for significant amounts of power to be transferred to a flowing gas over short periods of time. In the proposed configuration the stored energy can be utilized in two ways: (1) with direct propellant injection to the core, the energy can be converted into thrust through the use of a converging-diverging nozzle and (2) by flowing a working fluid through the core and subsequent Brayton engine, energy within the core can be converted to electrical energy. The first scenario achieves moderate ranges of thrust, but at a higher Isp than traditional chemical-based systems. The second scenario allows for the production of electrical power, which is then available for electric-based propulsion. Additionally, once at location the production of electrical power can be dedicated to the payload’s communication system for data transfer. Ultimately, the proposed dual-mode propulsion platform capitalizes on the benefits of two types of propulsion methods – the thrust of thermal propulsion ideal for quick orbital maneuvers and the specific impulse of electric propulsion ideal for efficient inter-planetary travel. Previous versions of this RTR-based concept have been studied for various applications [NETS 1-3]. The current version of this concept is being matured through a NASA Innovative Advanced Concepts (NIAC) Phase I grant, awarded for FY 2014. In this study the RTR concept is being developed to deliver a 6U CubeSat payload to the orbit of the Saturnian moon - Enceladus. Additionally, this study will develop an entire mission architecture for Enceladus targeting a total allowable launch mass of 1,000 kg.

Nathan Jerred; Troy Howe; Adarsh Rajguru; Dr. Steven Howe

2014-06-01T23:59:59.000Z

135

Vehicle Technologies Office Merit Review 2014: Vehicle & Systems Simulation & Testing  

Broader source: Energy.gov [DOE]

Presentation given by U.S. Department of Energy at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting providing an overview of...

136

DOE Hydrogen Analysis Repository: Advanced Vehicle Simulator (ADVISOR)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

137

Low Cost Titanium ? Propulsion Applications | Department of...  

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

Applications Low Cost Titanium Propulsion Applications 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer...

138

Method and system for reducing errors in vehicle weighing systems  

DOE Patents [OSTI]

A method and system (10, 23) for determining vehicle weight to a precision of <0.1%, uses a plurality of weight sensing elements (23), a computer (10) for reading in weighing data for a vehicle (25) and produces a dataset representing the total weight of a vehicle via programming (40-53) that is executable by the computer (10) for (a) providing a plurality of mode parameters that characterize each oscillatory mode in the data due to movement of the vehicle during weighing, (b) by determining the oscillatory mode at which there is a minimum error in the weighing data; (c) processing the weighing data to remove that dynamical oscillation from the weighing data; and (d) repeating steps (a)-(c) until the error in the set of weighing data is <0.1% in the vehicle weight.

Hively, Lee M. (Philadelphia, TN); Abercrombie, Robert K. (Knoxville, TN)

2010-08-24T23:59:59.000Z

139

Looking From A Hilltop: Automotive Propulsion System Technology...  

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

Advanced Engine Trends, Challenges and Opportunities Diesel Emission Control Review Catalyst Design for Urea-less Passive Ammonia SCR Lean-Burn SIDI Aftertreatment System...

140

Vehicle Technologies Office Merit Review 2014: Applied ICME for New Propulsion Materials (Agreement ID:26391) Project ID:18865  

Broader source: Energy.gov [DOE]

Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about applied ICME...

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

A Design of Marine Propulsion Shaft Power Telemetry System  

Science Journals Connector (OSTI)

In order to achieve the marine shaft power’s dynamic telemetry, on the basis of the analysis of shaft power measurement’s fundamental principles, from both hardware and software, the telemetry system has desig...

Hongyan Hao; Qingshan Ji

2012-01-01T23:59:59.000Z

142

Alternative Fuels Data Center: Alternative Fuel and Advanced Vehicle System  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (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...

143

E-Print Network 3.0 - accent propulsion lander Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

vehicle design and operations, propulsion, orbital mechanics, spacecraft... on hypersonic flight and electric rocket propulsion. Dr. Erwin teaches two lower-division...

144

A Sensorless Direct Torque Control Scheme Suitable for Electric Vehicles  

E-Print Network [OSTI]

is a good candidate for EVs propulsion. Index Terms--Electric vehicle, Induction motor, sensorless drive; however, they have not yet used the most remarkable advantages of electric motors. Indeed, an electric, Algeria. The electric propulsion system is the heart of EVs [1-2]. It consists of the motor drive

Paris-Sud XI, Université de

145

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

146

Comparative controller design for a marine gas turbine propulsion system  

SciTech Connect (OSTI)

Controller design for marine gas turbine systems should consider three measures of performance: transient control, steady-state accuracy, and disturbance rejection. This paper presents and compares two common types of controller design in terms of these measures. The goal of the controllers was shaft speed control. To meet this goal, a classical proportional-plus-integral controller was designed and compared to a modern linear quadratic regulator design. The controllers' performances were evaluated with respect to the three measures mentioned above, with disturbances being input as oscillations in shaft torque due to seaway cycling.

Smith, D.L.; Stammetti, V.A. (Naval Postgraduate School, Monterey, CA (USA). Dept. of Mechanical Engineering)

1990-04-01T23:59:59.000Z

147

Induction-drive magnetohydrodynamic propulsion  

Science Journals Connector (OSTI)

The use of magnetohydrodynamic propulsion for marine applications is reviewed with emphasis on induction- ... . Comparisons are made with direct-drive MHD propulsion systems. Application to pumps for hazardous fl...

D. L. Mitchell; D. U. Gubser

1993-08-01T23:59:59.000Z

148

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

SciTech Connect (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

149

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

150

Australian Science and Technology with Relevance to Beamed Energy Propulsion  

SciTech Connect (OSTI)

Although Australia has no Beamed Energy Propulsion programs at the present time, it is accomplishing significant scientific and technological activity that is of potential relevance to Beamed Energy Propulsion (BEP). These activities include: continual upgrading and enhancement of the Woomera Test Facility, Which is ideal for development and test of high power laser or microwave systems and the flight vehicles they would propel; collaborative development and test, with the US and UK of hypersonic missiles that embody many features needed by beam-propelled flight vehicles; hypersonic air breathing propulsion systems that embody inlet-engine-nozzle features needed for beam-riding agility by air breathing craft; and research on specially conditioned EM fields that could reduce beamed energy lost during atmospheric propagation.

Froning, H. David Jr [PO Box 180, Gumeracha SA 5233 (Australia)

2008-04-28T23:59:59.000Z

151

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

152

An automated miniature robotic vehicle inspection system  

SciTech Connect (OSTI)

A novel, autonomous reconfigurable robotic inspection system for quantitative NDE mapping is presented. The system consists of a fleet of wireless (802.11g) miniature robotic vehicles, each approximately 175 × 125 × 85 mm with magnetic wheels that enable them to inspect industrial structures such as storage tanks, chimneys and large diameter pipe work. The robots carry one of a number of payloads including a two channel MFL sensor, a 5 MHz dry coupled UT thickness wheel probe and a machine vision camera that images the surface. The system creates an NDE map of the structure overlaying results onto a 3D model in real time. The authors provide an overview of the robot design, data fusion algorithms (positioning and NDE) and visualization software.

Dobie, Gordon; Summan, Rahul; MacLeod, Charles; Pierce, Gareth; Galbraith, Walter [Centre for Ultrasonic Engineering, University of Strathclyde, 204 George Street, Glasgow, G1 1XW (United Kingdom)

2014-02-18T23:59:59.000Z

153

Performance optimization for unmanned vehicle systems  

E-Print Network [OSTI]

Technological advances in the area of unmanned vehicles are opening new possibilities for creating teams of vehicles performing complex missions with some degree of autonomy. Perhaps the most spectacular example of these ...

Le Ny, Jerome

2008-01-01T23:59:59.000Z

154

System for propulsion of boats by means of winds and streams and for recovery of energy  

SciTech Connect (OSTI)

The invention relates to an improved system for propulsion of boats by winds and streams and for recovery of disposable energy from floating stations neither moored nor anchored, the improved system comprising: at least one aerial feathered propeller with its shaft, the propeller being mounted orientable in any azimuth direction contained in a substantially horizontal plane and adapted to function as an aerogenerator as well as a propulsive screw; a superstructure supporting device on the floating unit adapted to permit orientation as desired of the aerial propeller in the direction of the wind; at least one nautic propeller screw with its shaft, mounted under the bottom of the floating unit and adapted to be capable of functioning as energy collecting turbine as well as propeller; a transmission system connecting the aerial propeller shaft to the nautic propeller shaft, the transmission being reversible and capable of including a torque conversion device to select during operations the direction of transmission as well as the transmission ratio; a directional device adapted to ensure the steering of the floating unit; and control devices comprising actuating apparatus adapted to allow the driver to act, in addition upon the directional device and the azimuth orientation of said aerial propeller, upon at least two of three variable parameters of said system, namely the pitch of said aerial propeller, the transmission ratio and the pitch of said nautic propeller, by the actuating apparatus.

Vidal, J.

1983-02-01T23:59:59.000Z

155

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

156

System Simulations of Hybrid Electric Vehicles with Focus on...  

Broader source: Energy.gov (indexed) [DOE]

System Simulations of Hybrid Electric Vehicles with Focus on Emissions Zhiming Gao Veerathu K. Chakravarthy Josh Pihl C. Stuart Daw Maruthi Devarakonda Jong Lee...

157

Efficiency of Fish Propulsion  

E-Print Network [OSTI]

It is shown that the system efficiency of a self-propelled flexible body is ill-defined unless one considers the concept of quasi-propulsive efficiency, defined as the ratio of the power needed to tow a body in rigid-straight condition over the power it needs for self-propulsion, both measured for the same speed. Through examples we show that the quasi-propulsive efficiency is the only rational non-dimensional metric of the propulsive fitness of fish and fish-like mechanisms. Using two-dimensional viscous simulations and the concept of quasi-propulsive efficiency, we discuss the efficiency two-dimensional undulating foils. We show that low efficiencies, due to adverse body-propulsor hydrodynamic interactions, cannot be accounted for by the increase in friction drag.

Maertens, A P; Yue, D K P

2014-01-01T23:59:59.000Z

158

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

159

A diagnostic system for air brakes in commercial vehicles  

E-Print Network [OSTI]

This dissertation deals with the development of a model-based diagnostic system for air brake systems that are widely used in commercial vehicles, such as trucks, tractor-trailers, buses, etc. The performance of these brake systems is sensitive...

Coimbatore Subramanian, Shankar Ram

2007-09-17T23:59:59.000Z

160

Int. J. of Heavy Vehicle Systems, Vol. 11, Nos 3/4, 2004 372 Combined optimisation of design and power  

E-Print Network [OSTI]

for the Family of Medium Tactical Vehicles (FMTV). A representative duty cycle for the FMTV is generated based equipped with highly-efficient diesel engines, thus limiting opportunities for significant vehicle fuel. Vehicle hybridisation generally means using an alternative propulsion component instead of, or in addition

Papalambros, Panos

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

Vehicle Cooling Systems - Energy Innovation Portal  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in certain geographical areas. The windows and windshields of vehicles cause this greenhouse effect. Excess heat damages instrument panels (dash boards) and electronic equipment,...

162

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

E-Print Network [OSTI]

have set long-term plans to electrify their transportation system and manufacture electric vehicles-enabled electric vehicles will be on the road in USA. The expected trend in the automotive market share for EVs electricity storage unit in most power grids are the pumped storage systems [6]. 2010 2011 2012 2013 2014 2015

Huang, Jianwei

163

Marine propulsion device with engine heat recovery system and streamlining hull closures  

SciTech Connect (OSTI)

A Marine Jet Propulsion System for use as an inboard engine for boats is herein described. An engine or motor means is attached in a driving relationship to a pump and thrust output apparatus. Heat generated by and rejected by the engine or motor is passed into the pump base for dissipation into the outputted jet thrust stream. Air and/or exhaust gas from the engine is ejected around the jet output stream to reduce against-the-hull turbulence and jet stream or thrust energy losses. Streamlining hull closures for the jet pump intake and output ports are provided to reduce system hull drag when not in use and to limit marine organism growth inside the pump.

Haynes, H. W.

1985-11-12T23:59:59.000Z

164

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

165

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

Broader source: Energy.gov (indexed) [DOE]

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

166

Nuclear Propulsion in Space (1968)  

ScienceCinema (OSTI)

Project NERVA was an acronym for Nuclear Engine for Rocket Vehicle Application, a joint program of the U.S. Atomic Energy Commission and NASA managed by the Space Nuclear Propulsion Office (SNPO) at the Nuclear Rocket Development Station in Jackass Flats, Nevada U.S.A. Between 1959 and 1972, the Space Nuclear Propulsion Office oversaw 23 reactor tests, both the program and the office ended at the end of 1972.

None

2014-06-17T23:59:59.000Z

167

Nuclear Propulsion in Space (1968)  

SciTech Connect (OSTI)

Project NERVA was an acronym for Nuclear Engine for Rocket Vehicle Application, a joint program of the U.S. Atomic Energy Commission and NASA managed by the Space Nuclear Propulsion Office (SNPO) at the Nuclear Rocket Development Station in Jackass Flats, Nevada U.S.A. Between 1959 and 1972, the Space Nuclear Propulsion Office oversaw 23 reactor tests, both the program and the office ended at the end of 1972.

None

2012-06-23T23:59:59.000Z

168

Lateral control of articulated vehicles for automated highway systems under uncertainty in vehicle parameters  

E-Print Network [OSTI]

OF CONTENTS Vl LIST OF TABLES LIST OF FIGURES V111 CHAPTER I INTRODUCTION CHAPTER II ARTICULATED VEHICLE MODELING 2. 1 22 23 2. 4 25 26 Introduction . Longitudinal Model of the Tractor-Semitrailer . . . Modeling the Tractor-Semitrailer Linkage... FOR AUTOMATED HIGHWAY SYSTEMS . . . . . . . . . . . . . . . . . . . . 29 4. 1 4. 2 4. 3 Road Reference Frame . Steering Control of Tractor-Semitrailer Vehicles . . . 4, 2. 1 Controller Design . . 4. 2. 2 Simulation Results . . . Steering and Independent...

Daud, Omar

2012-06-07T23:59:59.000Z

169

Vehicle Technologies Office: Advanced Battery Development, System...  

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

learn how batteries are used in plug-in electric vehicles, visit the Alternative Fuels Data Center's page on batteries. Through the USABC, VTO supports a variety of research,...

170

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

Broader source: Energy.gov (indexed) [DOE]

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...

171

Design features of a cable–bollard vehicle barrier system  

Science Journals Connector (OSTI)

The design features of the stand-alone cable–bollard vehicle barrier system (Cable-Bollard VBS) developed for the Vermont Yankee Nuclear Power Plant (VY) to meet the design goals of the recent 10 CFR Part 73 rule changes are discussed. The design is based on the application of fundamental engineering principles to a dynamic system, recognizing that vehicle impact on a cable system is fundamentally different from vehicle impact on a bollard or other hard barrier. As such, rigorous attention is paid to cable anchor design and performance.

Gordon S. Bjorkman; Steven P. Harris

1998-01-01T23:59:59.000Z

172

E-Print Network 3.0 - advanced vehicle control systems Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a resolution of major vehicle components for advanced class vehicles and systems. The Cost Model ASCM estimates... Automotive System Cost Modeling Tool (ASCM) T he affordability...

173

Improving the Efficiency of Light-Duty Vehicle HVAC Systems using...  

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

Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric Devices and Comfort Modeling Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric...

174

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

175

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...

Buntin, David Leighton

1994-01-01T23:59:59.000Z

176

Modular design of the LED vehicle projector headlamp system  

Science Journals Connector (OSTI)

A well designed headlamp for a vehicle lighting system is very important as it provides drivers with safe and comfortable driving conditions at night or in dark places. With the...

Hsieh, Chi-Chang; Li, Yan-Huei; Hung, Chih-Ching

2013-01-01T23:59:59.000Z

177

Ultracapacitor/Battery Hybrid Energy Storage Systems for Electric Vehicles.  

E-Print Network [OSTI]

??This thesis deals with the design of Hybrid Energy Storage System (HESS) for Light Electric Vehicles (LEV) and EVs. More specifically, a tri-mode high-efficiency non-isolated… (more)

Moshirvaziri, Mazhar

2012-01-01T23:59:59.000Z

178

Hydrogen-Fueled Vehicle Safety Systems Animation (Text Version)  

Broader source: Energy.gov [DOE]

Hydrogen fueled vehicles have multiple safety systems that detect and prevent the accidental release of hydrogen. There are sensors that detect leaks, a computer that monitors fuel flow, and an...

179

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

180

EFFICIENT VEHICLE TRACKING AND CLASSIFICATION FOR AN AUTOMATED TRAFFIC SURVEILLANCE SYSTEM  

E-Print Network [OSTI]

surveillance system needs to detect vehicles and classify them if possible. Generating vehicle trajectoriesEFFICIENT VEHICLE TRACKING AND CLASSIFICATION FOR AN AUTOMATED TRAFFIC SURVEILLANCE SYSTEM Amol to detect the pose of a vehicle in the 3D world. This information is used in a model-based vehicle detection

Nicolescu, Mircea

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

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

182

Intelligent Systems Software for Unmanned Air Vehicles  

E-Print Network [OSTI]

are used, for example, to find missing persons, fight forest fires, and for aerial photography. Military. Hanford and Long4 discuss how to evaluate cognitive architectures for unmanned vehicles and mobile robots. Also, Hanford et al5 and Janrathitikarn and Long6 describe the use of cognitive architectures

183

A Real-time Precrash Vehicle Detection System Zehang Sun1  

E-Print Network [OSTI]

A Real-time Precrash Vehicle Detection System Zehang Sun1 , Ronald Miller2 , George Bebis1-- This paper presents an in-vehicle real-time monocular precrash vehicle detection system. The system acquires have developed a real-time vehicle detection system using a Ford Motor Company proprietary low light

Bebis, George

184

FY 2006 Annual Progress Report for Heavy Vehicle Systems Optimization Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

185

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

186

Apparatus and method for providing oil circulation in a marine propulsion system  

SciTech Connect (OSTI)

A marine propulsion system is described, comprising: a housing including an upper cavity and a lower cavity defined at least in part by an end wall; an upper input shaft adapted to be rotatably driven by an engine and being disposed within the housing upper cavity; an input drive member mounted to the input shaft; a lower propeller shaft disposed within the housing lower cavity; a driven member mounted to the propeller shaft and located within the housing lower cavity so as to be axially spaced from the lower cavity end wall to define a space there between; drive means disposed between the drive member and the driven member and imparting rotation to the propeller shaft in response to rotation of the input shaft; a quantity of lubricant provided in the housing; a lubricant supply passage providing communication between the lower cavity and the input shaft cavity, and including an inlet in the housing lower cavity opening into the space located between the lower cavity end wall and the driven member, so that rotation of the driven member supplies lubricant under pressure to the space and to the inlet of the supply passage, with the lubricant flowing there through to the input shaft cavity; and a return passage communicating between the input shaft cavity and the lower cavity for providing return flow of lubricant from the input shaft cavity to the lower cavity.

Schueller, N.M.; Meisenburg, G.L.; Gray, C.F. Jr.

1993-08-17T23:59:59.000Z

187

Vehicle Technologies Office: 2009 Advanced Vehicle Technology...  

Office of Environmental Management (EM)

Vehicle Technologies Office: 2009 Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report Vehicle...

188

Complex System Method to Assess Commercial Vehicle Fuel Consumption  

Broader source: Energy.gov [DOE]

Two case studies for commercial vehicle applications compare a baseline, contemporary vehicle with advanced, future options.

189

DOE awards $7m to push vehicle hydrogen storage systems  

Science Journals Connector (OSTI)

The US Department of Energy's Office of Energy Efficiency & Renewable Energy (EERE) has announced $7 million for six projects to develop lightweight, compact, and inexpensive advanced hydrogen storage systems that will enable longer driving ranges and help make fuel cell systems competitive for different platforms and sizes of vehicles.

2014-01-01T23:59:59.000Z

190

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

191

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

192

Electric Propulsion  

Science Journals Connector (OSTI)

...is clear. The long-t?me continuous operation is required for electric propulsion pri-marily...travel against a small voltage to the cold element. The cell thereby produces an...concentrate and focus the solar rays on a heater. Little, if any, decrease in specific...

W. E. Moeckel

1963-10-11T23:59:59.000Z

193

Operations of a Radioisotope-based Propulsion System Enabling CubeSat Exploration of the Outer Planets  

SciTech Connect (OSTI)

Exploration to the outer planets is an ongoing endeavor but in the current economical environment, cost reduction is the forefront of all concern. The success of small satellites such as CubeSats launched to Near-Earth Orbit has lead to examine their potential use to achieve cheaper science for deep space applications. However, to achieve lower cost missions; hardware, launch and operations costs must be minimized. Additionally, as we push towards smaller exploration beds with relative limited power sources, allowing for adequate communication back to Earth is imperative. Researchers at the Center for Space Nuclear Research are developing the potential of utilizing an advanced, radioisotope-based system. This system will be capable of providing both the propulsion power needed to reach the destination and the additional requirements needed to maintain communication while at location. Presented here are a basic trajectory analysis, communication link budget and concept of operations of a dual-mode (thermal and electric) radioisotope-based propulsion system, for a proposed mission to Enceladus (Saturnian icy moon) using a 6U CubeSat payload. The radioisotope system being proposed will be the integration of three sub-systems working together to achieve the overall mission. At the core of the system, stored thermal energy from radioisotope decay is transferred to a passing propellant to achieve high thrust – useful for quick orbital maneuvering. An auxiliary closed-loop Brayton cycle can be operated in parallel to the thrusting mode to provide short bursts of high power for high data-rate communications back to Earth. Additionally, a thermal photovoltaic (TPV) energy conversion system will use radiation heat losses from the core. This in turn can provide the electrical energy needed to utilize the efficiency of ion propulsion to achieve quick interplanetary transit times. The intelligent operation to handle all functions of this system under optimized conditions adds to the complexity of the mission architecture.

Dr. Steven Howe; Nathan Jerred; Troy Howe; Adarsh Rajguru

2014-05-01T23:59:59.000Z

194

A new symbiotic evolution-based fuzzy-neural approach to fault diagnosis of marine propulsion systems  

Science Journals Connector (OSTI)

This paper presents a symbiotic evolution-based fuzzy-neural diagnostic system (SE-FNDS) for fault diagnosis of propeller–shaft marine propulsion systems. The SE-FNDS combination of fuzzy modeling, back-propagation training and symbiotic evolution function auto-generates its own optimal fuzzy-neural architecture, a significant advantage over previous time-consuming manual parameter determination. Four hundred samples from a test propeller–shaft system are taken over a range of 100–500 rpm, during normal and experimentally induced faulty operation. This database is applied as input/output rule generation and training data for the fuzzy-neural network. Comparison of system construction time and diagnostic accuracy is made by applying the same database to SE-FNDS and four traditional systems. Compared to traditional methods, diagnostic decisions from SE-FNDS show 94.17% agreement with real conditions and less CPU time for system construction. Two nonlinear function approximations are also used to demonstrate the proposed system. The presented design is useful as a core module for more advanced computer-assisted diagnostic systems and for direct application in marine propulsion systems.

Hsing-Chia Kuo; Hui-Kuo Chang

2004-01-01T23:59:59.000Z

195

NREL: Vehicles and Fuels Research - Systems Analysis and Integration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

evaluates the impact of emerging technologies on efficiency, performance, cost, and battery life for a full range of vehicles-conventional vehicles, hybrid electric vehicles,...

196

Vehicle Technologies Office Merit Review 2014: Vehicle Thermal Systems Modeling in Simulink  

Broader source: Energy.gov [DOE]

Presentation given by Pacific Northwest National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about vehicle...

197

Vehicle Technologies Office: Materials for Hybrid and Electric Drive Systems  

Broader source: Energy.gov [DOE]

The Vehicle Technologies Office (VTO) is working to lower the cost and increase the convenience of electric drive vehicles, which include hybrid and plug-in electric vehicles. These vehicles use...

198

IN-VEHICLE, HIGH-POWER ENERGY STORAGE SYSTEMS  

Broader source: Energy.gov (indexed) [DOE]

- electric and hybrid vehicle configurations - vehicle modeling (Autonomie) - fuel cells - Hardware in the Loop (HIL) techniques - power electronics - combustion - controls -...

199

Candidate Fuels for Vehicle Fuel Cell Power Systems  

E-Print Network [OSTI]

engine vehicle, HEV = hybrid (battery/ICE) electric vehicle, NG SR = natural gas steam reformer indicated that long-term operating costs for FCVs could be competitive with conventional vehicles... 0 1 ... but that ownership costs are much higher due to high vehicle purchase costs. Vehicle Ownership CostVehicle Ownership

200

The Micro Craft iSTAR Micro Air Vehicle: Control System Design and Testing  

E-Print Network [OSTI]

-rotating propellers) benefits both reliability and cost. Figure 1: iSTAR Micro Air Vehicle The Micro Craft iSTAR VTOLThe Micro Craft iSTAR Micro Air Vehicle: Control System Design and Testing Larry Lipera i Abstract The iSTAR Micro Air Vehicle (MAV) is a unique 9-inch diameter ducted air vehicle weighing

Rotkowitz, Michael C.

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

Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles...  

Broader source: Energy.gov (indexed) [DOE]

Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles This document describes the basis for the...

202

A centralized control system for ecological vehicle platooning using linear quadratic regulator theory  

Science Journals Connector (OSTI)

This paper presents an ecological vehicle platooning control system that aims in reducing overall fuel consumption of the vehicles in a platoon. A centralized linear quadratic regulator system for controlling the...

Anan Kaku; Masakazu Mukai; Taketoshi Kawabe

2012-10-01T23:59:59.000Z

203

Neural Network Based Energy Storage System Modeling for Hybrid Electric Vehicles  

SciTech Connect (OSTI)

Demonstrates the application of an artificial neural network (ANN) for modeling the energy storage system of a hybrid electric vehicle.

Bhatikar, S. R.; Mahajan, R. L.; Wipke, K.; Johnson, V.

1999-08-01T23:59:59.000Z

204

Low and high Temperature Dual Thermoelectric Generation Waste Heat Recovery System for Light-Duty Vehicles  

Broader source: Energy.gov [DOE]

Developing a low and high temperature dual thermoelectric generation waste heat recovery system for light-duty vehicles.

205

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

SciTech Connect (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

206

Heavy Vehicle Essential Power Systems Workshop  

SciTech Connect (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

207

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. The system minimizes the energy requirement of the vehicle and can work with different primary power sources

Catholic University of Chile (Universidad Católica de Chile)

208

Development of an Ultra-Wideband Radar System for Vehicle Detection at Railway Crossings  

E-Print Network [OSTI]

Development of an Ultra-Wideband Radar System for Vehicle Detection at Railway Crossings Stephen P-wideband (UWB) radar system designed to detect motor vehicles such as cars and trucks when they are present was supported in part by LaBarge, Inc. down. A sensing system that can detect the presence of a vehicle

Kansas, University of

209

Local-feature Based Vehicle Recognition System Using Parallel Vision Board  

E-Print Network [OSTI]

, performing two outdoor experiments. Our system is good at detecting locations of vehicles, hence it will be useful for not only vehicle detection but also such application, ETC, DSRC or so, that system needsLocal-feature Based Vehicle Recognition System Using Parallel Vision Board YOSHIDA Tatsuya

Ikeuchi, Katsushi

210

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

211

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

212

The Drive for Energy Diversity and Sustainability: The Impact on Transportation Fuels and Propulsion System Portfolios  

Broader source: Energy.gov [DOE]

Presentation given at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

213

FY2003 Progress Report for Automotive Propulsion Materials Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

214

IN-VEHICLE, HIGH-POWER ENERGY STORAGE SYSTEMS  

Broader source: Energy.gov (indexed) [DOE]

energy storage curriculum including vehicle configurations, advanced combustion, fuel cells, power electronics, controls, alternative fuels and vehicle fuel efficiency to prepare...

215

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

E-Print Network [OSTI]

Santiago, Chile jdixon@ing.puc.cl Abstract-- A monitoring system for a battery powered electric vehicle (EV- powered electric vehicles, the need for fast information related to different components and equipmentMonitoring Battery System for Electric Vehicle, Based On "One Wire" Technology Javier Ibáñez Vial

Catholic University of Chile (Universidad Católica de Chile)

216

Monitoring System for Testing the Performance of an Electric Vehicle Using Ultracapacitors  

E-Print Network [OSTI]

Monitoring System for Testing the Performance of an Electric Vehicle Using Ultracapacitors Juan W. Dixon, Micah Ortúzar and Jorge Moreno Abstract A monitoring system for an Electric Vehicle, which uses of ultracapacitors in combination with batteries in electric vehicles. The efficiency gain is being monitored

Catholic University of Chile (Universidad Católica de Chile)

217

Implementation and Evaluation of an Ultracapacitor-Based Auxiliary Energy System for Electric Vehicles  

E-Print Network [OSTI]

of an ultracapacitor bank and a buck- boost converter, was installed in an electric vehicle, which is powered by a lead Vehicles Micah Ortúzar, Jorge Moreno and Juan Dixon (SM IEEE) Department of Electrical Engineering system for electric vehicles was designed, implemented and tested. The system, composed

Catholic University of Chile (Universidad Católica de Chile)

218

A real-time computer vision system for vehicle tracking and trac surveillance  

E-Print Network [OSTI]

conditions. We are developing a feature-based tracking system for detecting vehicles under these challengingA real-time computer vision system for vehicle tracking and trac surveillance Benjamin Coifmana and problems associated with existing detectors have spawned an interest in new vehicle detection technologies

Malik, Jitendra

219

Evaluation of Cost Effective Sensor Combinations for a Vehicle Precrash Detection System  

E-Print Network [OSTI]

Evaluation of Cost Effective Sensor Combinations for a Vehicle Precrash Detection System John of vehicle safety will benefit greatly from precrash detection ­ the ability of a motor vehicle to predict for ongoing research in developing an integrated object detection and avoidance precrash sensing system

Birdsong, Charles

220

Tri-Met's Experience With Automatic Passenger Counter and Automatic Vehicle Location Systems  

E-Print Network [OSTI]

Tri-Met's Experience With Automatic Passenger Counter and Automatic Vehicle Location Systems James includes Automatic Vehicle Location (AVL) using a satellite-based global positioning system (GPS); · Voice for temporary data storage, a vehicle control head displaying schedule adherence to operators, detection

Bertini, Robert L.

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

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

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (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.

222

Urea SCR and DPF System for Deisel Sport Utility Vehicle Meeting...  

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

Deisel Sport Utility Vehicle Meeting Tier II Bin 5 Urea SCR and DPF System for Deisel Sport Utility Vehicle Meeting Tier II Bin 5 2002 DEER Conference Presentation: Ford Motor...

223

An adaptable, low cost test-bed for unmanned vehicle systems research.  

E-Print Network [OSTI]

?? An unmanned vehicle systems test-bed has been developed. The test-bed has been designed to accommodate hardware changes and various vehicle types and algorithms. The… (more)

Goppert, James M.

2011-01-01T23:59:59.000Z

224

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

225

Improvements to a queue and delay estimation algorithm utilized in video imaging vehicle detection systems  

E-Print Network [OSTI]

Video Imaging Vehicle Detection Systems (VIVDS) are steadily becoming the dominant method for the detection of vehicles at a signalized traffic approach. This research is intended to investigate the improvement of a queue and delay estimation...

Cheek, Marshall Tyler

2007-09-17T23:59:59.000Z

226

Preliminary finite element modeling of a piezoelectric actuated marine propulsion fin.  

E-Print Network [OSTI]

??New technologies surrounding composite materials and autonomous underwater vehicle (AUV) design have led to numerous studies involving the marine propulsion for these AUVs. AUVs traditionally… (more)

Streett, Andrew

2006-01-01T23:59:59.000Z

227

Preliminary Finite Element Modeling of a Piezoelectric Actuated Marine Propulsion Fin.  

E-Print Network [OSTI]

?? New technologies surrounding composite materials and autonomous underwater vehicle (AUV) design have led to numerous studies involving the marine propulsion for these AUVs. AUVs… (more)

Streett, Andrew R.

2006-01-01T23:59:59.000Z

228

“Bimodal” NTR and LANTR propulsion for human missions to Mars/Phobos  

Science Journals Connector (OSTI)

The nuclear thermal rocket (NTR) is one of the leading propulsion options for future human missions to Mars due to its high specific impulse (Isp ?850–1000 s) and attractive engine thrust-to-weight ratio (?3–10). Because only a miniscule amount of enriched uranium-235 fuel is consumed in a NTR during the primary propulsion maneuvers of a typical Mars mission engines configured for both propulsive thrust and modest power generation (referred to as “bimodal” operation) provide the basis for a robust “power-rich” stage enabling propulsive Mars capture and reuse capability. A family of modular “bimodal” NTR (BNTR) vehicles are described which utilize a common “core” stage powered by three 66.7 kN (?15 klbf) BNTRs that produce 50 kWe of total electrical power for crew life support an active refrigeration/reliquification system for long term “zero-boiloff” liquid hydrogen ( LH 2 ) storage and high data rate communications. Compared to other propulsion options a Mars mission architecture using BNTR transfer vehicles requires fewer transportation system elements which reduces mission mass cost and risk because of simplified space operations. For difficult Mars options such as a Phobos rendezvous and sample return mission volume (not mass) constraints limit the performance of the “all LH 2 ” BNTR stage. The use of “LOX-augmented” NTR (LANTR) engines operating at a modest oxygen-to-hydrogen (O/H) mixture ratio (MR) of 0.5 helps to increase “bulk” propellant density and total thrust during the trans-Mars injection (TMI) burn. On all subsequent burns the bimodal LANTR engines operate on LH 2 only ( MR =0) to maximize vehicle performance while staying within the mass limits of two ?80 t “Magnum” heavy lift launch vehicles (HLLVs).

Stanley K. Borowski; Leonard A. Dudzinski; Melissa L. McGuire

1999-01-01T23:59:59.000Z

229

Vehicle Technologies Office: 2008 Advanced Vehicle Technology...  

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

8 Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report Vehicle Technologies Office: 2008 Advanced...

230

Modeling and Optimization of PEMFC Systems and its Application to Direct Hydrogen Fuel Cell Vehicles  

E-Print Network [OSTI]

operating conditions. Direct Hydrogen Fuel Cell System Modelconditions for a direct hydrogen fuel cell system Table 1simulation tool for hydrogen fuel cell vehicles, Journal of

Zhao, Hengbing; Burke, Andy

2008-01-01T23:59:59.000Z

231

How A Vessel of This Magnitude Was Moved : A Comparative Analysis of Confederate Ironclad Steam Engines Boilers and Propulsion Systems.  

E-Print Network [OSTI]

??The development of steam propulsion machinery in warships during the 19th century in conjunction with iron armor and shell guns resulted in a technological revolution… (more)

Bisbee, Saxon T.

2012-01-01T23:59:59.000Z

232

Multi-Disciplinary Decision Making and Optimization for Hybrid Electric Propulsion Systems  

SciTech Connect (OSTI)

In this paper, we investigate the trade-offs among the subsystems of a hybrid electric vehicle (HEV), e.g., the engine, motor, and the battery, and discuss the related im- plications for fuel consumption and battery capacity and lifetime. Addressing this problem can provide insights on how to prioritize these objectives based on consumers needs and preferences.

Shoultout, Mohamed L. [University of Texas at Austin; Malikopoulos, Andreas [ORNL; Pannala, Sreekanth [ORNL; Chen, Dongmei [University of Texas at Austin

2014-01-01T23:59:59.000Z

233

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

SciTech Connect (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

234

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

SciTech Connect (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

Design of Electric or Hybrid vehicle alert sound system for pedestrian  

E-Print Network [OSTI]

Design 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 the environment to warn of his approach. However, hybrid and electric vehicles can potentially be dangerous

Boyer, Edmond

236

Background-aware Pedestrian/Vehicle Detection System for Driving Environments  

E-Print Network [OSTI]

Background-aware Pedestrian/Vehicle Detection System for Driving Environments Ji Hoon Joung, M. S to enhance the reliability of detection of objects in a driving envi- ronment (e.g. pedestrian and vehicle detections. Our approach considers that if we remove a certain region from an image taken from a vehicle

Ryoo, Michael S.

237

An Intelligent Video System for Vehicle Localization and Tracking in Police Cars  

E-Print Network [OSTI]

An Intelligent Video System for Vehicle Localization and Tracking in Police Cars Amirali Jazayeri. Particularly, detecting a tracked or stopped vehicle is a crucial task for further examination of suspects, Experimentation Keywords In-Car Video, Tracking, Vehicle Detection, Spatial-Temporal Image, 1D projection

Tuceryan, Mihran

238

Fuel consumption of a vehicle with power split CVT system  

Science Journals Connector (OSTI)

Continuously variable transmissions have made notable progress, especially in the automotive industry, in recent years. In this work, we study the performance of a mid passenger car provided with an original Power Split CVT (PS-CVT) system. The main advantage of the proposed solution is to improve the efficiency of the CVT by means of a power flow without recirculation using two separate phases of operation. By means of a simulation model we evaluate the vehicle's fuel consumption with the hypothesis to consider the value of transmission ratio speed that minimises the specific fuel consumption. Furthermore the PS-CVT performance is compared with that of traditional CVT.

Giacomo Mantriota

2005-01-01T23:59:59.000Z

239

Evolved expendable launch vehicle system: RS-68 main engine development  

Science Journals Connector (OSTI)

Delta IV is one of two competing Evolved Expendable Launch Vehicle (EELV) systems being developed in an industry/United States Government partnership to meet the needs of the new era of space launch for the early decades of the 21st Century. The Rocketdyne Division of The Boeing Company and the United States Air Force have developed a 650 Klbf sea-level (2.9 MN) class liquid hydrogen/liquid oxygen main engine for the Delta IV family of EELV. The purpose of this paper is to present the innovative approach to the design, development, testing and certification of the RS-68 engine.

David Conley; Norman Y. Lee; Peter L. Portanova; Byron K. Wood

2003-01-01T23:59:59.000Z

240

Heavy Vehicle Systems Optimization Merit Review and Peer Evaluation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

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

Transparent Cockpit: Visual Assistance System for Vehicle Using Retro-reflective Projection Technology  

E-Print Network [OSTI]

Transparent Cockpit: Visual Assistance System for Vehicle Using Retro-reflective Projection is displayed on the inner wall of the vehicle using a retro-reflective projection technology. In this system, such as the traffic sign detection system[l, 2], blind spot monitor[5, 11], night view system[13], and using a retro

Tachi, Susumu

242

Wind Turbines for Marine Propulsion  

Science Journals Connector (OSTI)

ABSTRACT The design and construction of an horizontal axis wind turbine drive for a small yacht is described. This system has been designed to test the performance of this novel type of propulsion for use in commercial shipping, the fisheries industry and for the recreational market. The use of wind turbines to harness the power available from the wind for propulsion purposes offers a number of distinct advantages over other wind propulsion systems. Propulsion is achieved in all directions of travel relative to the wind. Complete control of the system can be arranged from a remote control position such as the ships bridge. This control can be achieved with a small crew because of the opportunities for applying powered and automated control systems. The way in which each of these features is achieved, together with details of the rotor, shafting and gear-train arrangements are described here. An indication is given of the theoretical performance of the yacht under this form of propulsion.

N. Bose; R.C. McGregor

1984-01-01T23:59:59.000Z

243

Hybrid Electric Vehicles - HEV Modeling  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

244

Overview of Vehicle and Systems Simulation and Testing  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

245

GATE Center of Excellence in Sustainable Vehicle Systems  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

246

Combinatorial Path Planning for a System of Multiple Unmanned Vehicles  

E-Print Network [OSTI]

In this dissertation, the problem of planning the motion of m Unmanned Vehicles (UVs) (or simply vehicles) through n points in a plane is considered. A motion plan for a vehicle is given by the sequence of points and the corresponding angles...

Yadlapalli, Sai Krishna

2011-02-22T23:59:59.000Z

247

Propulsion efficiencies of magnetohydrodynamic propulsors considering electrical and magnetic end effects. Research and development report  

SciTech Connect (OSTI)

A mathematical theory for the performance of a direct current, rectangular duct magnetohydrodynamic (MBD) propulsion system propelling a marine vehicle is presented. The model accounts for the effects of spatially nonuniform magnetic fields and current distributions which are present at the ends of the propulsion unit. The theory is based on an approximate solution of the general NM duct flow problem in which the mutual interaction of the electric current and fluid flow in a strong magnetic field are considered in detail. For a specified vehicular steady state cruising speed, the propulsive efficiency and electrical power requirements can be calculated from the theory given the hydrodynamic drag of the vehicle and the properties of the fluid medium. Explicit electrical end loss factors are calculated to relate the performance of a propulsor with nonuniform field distributions to the performance of an idealized propulsor with no end losses operating under the same conditions. The power losses due to auxiliary equipment such as electrical generators, buswork, and magnetic cryogenic systems are not included in the study. Numerical results from the models for five design configurations for a nominal geometry under a reasonable range of operating parameters are presented. The numerical results, including the ideal propulsor with no end effects, indicate that the fringing magnetic and current distributions at the ends of the duct generally significantly degrade the propulsive efficiency. The degree of degradation depends on details of the design configuration of the rectangular duct.

Beatty, P.A.; Hughes, W.F.; Brown, S.H.; Walters, J.D.; Sondergaard, N.A.

1992-04-01T23:59:59.000Z

248

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

249

Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting...  

Broader source: Energy.gov (indexed) [DOE]

Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting Tier II Bin 5 2003 DEER Conference Presentation: Ford Motor Company 2003deerhammerle.pdf More Documents &...

250

Second law analysis of a liquid cooled battery thermal management system for hybrid and electric vehicles.  

E-Print Network [OSTI]

??As hybrid and electric vehicles continue to evolve there is a need for better battery thermal management systems (BTMS), which maintain uniformity of operating temperature… (more)

Ramotar, Lokendra

2010-01-01T23:59:59.000Z

251

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

252

Vehicle Technologies Office Merit Review 2014: DOE GATE Center of Excellence in Sustainable Vehicle Systems  

Broader source: Energy.gov [DOE]

Presentation given by Clemson University at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about DOE GATE Center of...

253

View from the Bridge: Commercial Vehicle Perspective  

Broader source: Energy.gov [DOE]

Truck manufacturer's perspective on technologies to achieve truck propulsion system efficiency gains

254

Vehicle routing for the last mile of power system restoration  

SciTech Connect (OSTI)

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

255

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

256

A Laser Based Rut Detection and Following System for Autonomous Ground Vehicles  

E-Print Network [OSTI]

A Laser Based Rut Detection and Following System for Autonomous Ground Vehicles Camilo Ordonez and following system is proposed so that autonomous ground vehicles can benefit from the application of this off road driving rule. The proposed system utilizes a path planning algorithm to aid in the rut detection

Collins, Emmanuel

257

A Biologically-Motivated Developmental System Towards Perceptual Awareness in Vehicle-Based  

E-Print Network [OSTI]

A Biologically-Motivated Developmental System Towards Perceptual Awareness in Vehicle-Based Robots for such "vehicle-based" robots will be nec- essary. Motivated by neuroscience, we pro- pose a system with a design presents a biologically- motivated system for object detection, learning, and recognition, tested

258

Cyber-Physical Systems for Optimal Energy Management Scheme of Autonomous Electric Vehicle  

Science Journals Connector (OSTI)

......cyber-physical systems; autonomous electric vehicle; energy management...applications [e.g., autonomous electric vehicle (AEV) with wireless...systems, such as aircrafts and automobiles, to large-scale systems...infrastructure that supplies electric energy for the recharging......

Jiafu Wan; Hehua Yan; Di Li; Keliang Zhou; Lu Zeng

2013-08-01T23:59:59.000Z

259

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

260

Vehicle Technologies Office: Software Tools  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

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

Vehicle Technologies Office: Thermal Control and System Integration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

262

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

263

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

E-Print Network [OSTI]

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...

Lipscomb, Melissa Anne

2005-11-01T23:59:59.000Z

264

A Carbohydrate Recognition–Based Drug Delivery and Controlled Release System using Intraperitoneal Macrophages as a Cellular Vehicle  

Science Journals Connector (OSTI)

...fluorescence imaging system (FIS) with excitation...nm). For the detection of macrophages...for a cellular vehicle in a drug delivery system so as to control...controlled release system using intraperitoneal...as a cellular vehicle. | The lymphoid...

Yuzuru Ikehara; Toru Niwa; Le Biao; Sanae Kabata Ikehara; Norifumi Ohashi; Takeshi Kobayashi; Yoshitaka Shimizu; Naoya Kojima; and Hayao Nakanishi

2006-09-01T23:59:59.000Z

265

A Component Evaluation Tool from the Vehicle System Perspective  

Broader source: Energy.gov [DOE]

Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

266

Light Duty Plug-in Hybrid Vehicle Systems Analysis  

Broader source: Energy.gov (indexed) [DOE]

Bennion, Aaron Brooker, Jeff Gonder, and Matt Thornton National Renewable Energy Laboratory 2009 DOE Vehicle Technologies Annual Merit Review May 19 th , 2009 Project ID:...

267

Vehicle Systems Integration (VSI) Research Laboratory at ORNL...  

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

and Vehicle Technologies Program Annual Merit Review and Peer Evaluation vss035smith2011o.pdf More Documents & Publications The ArvinMeritor Dual Mode Hybrid Powertrain...

268

System Simulations of Hybrid Electric Vehicles with Focus on...  

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

with Focus on Emissions Comparative simulations of hybrid electric vehicles with gasoline and diesel engines will be conducted with focus on emissions control. deer10gao.pdf...

269

Vehicle yaw control via coordinated use of steering/braking systems  

E-Print Network [OSTI]

Vehicle yaw control via coordinated use of steering/braking systems M. Doumiati, O. Sename, J. Martinez, L. Dugard P. Gaspar, Z. Szabo, J. Bokor Gipsa-Lab UMR CNRS 5216, Control Systems Department with steer- ing/braking coordination task for vehicle yaw control. For steerability enhancement, only active

Paris-Sud XI, Université de

270

NREL - Advanced Vehicles and Fuels Basics - Center for Transportation Technologies and Systems 2010  

ScienceCinema (OSTI)

We can improve the fuel economy of our cars, trucks, and buses by designing them to use the energy in fuels more efficiently. Researchers at the National Renewable Energy Laboratory (NREL) are helping the nation achieve these goals by developing transportation technologies like: advanced vehicle systems and components; alternative fuels; as well as fuel cells, hybrid electric, and plug-in hybrid vehicles. For a text version of this video visit http://www.nrel.gov/learning/advanced_vehicles_fuels.html

None

2013-05-29T23:59:59.000Z

271

NREL - Advanced Vehicles and Fuels Basics - Center for Transportation Technologies and Systems 2010  

SciTech Connect (OSTI)

We can improve the fuel economy of our cars, trucks, and buses by designing them to use the energy in fuels more efficiently. Researchers at the National Renewable Energy Laboratory (NREL) are helping the nation achieve these goals by developing transportation technologies like: advanced vehicle systems and components; alternative fuels; as well as fuel cells, hybrid electric, and plug-in hybrid vehicles. For a text version of this video visit http://www.nrel.gov/learning/advanced_vehicles_fuels.html

None

2010-01-01T23:59:59.000Z

272

Design and evaluation of a nuclear-electric hybrid power/propulsion system  

E-Print Network [OSTI]

INTRODUCTION Page Motivation Literature Search Contributions. . . . . . . Organization of the Thesis II SYSTEM DESCRIPTION AND MODELING Conventional Cycles Hybrid Cycle Cycle Components System Integration 6 10 10 29 III TRAJECTORY MODEL . 33 IV... investigating and comparing various closed and open cycles. El ? Genk et al. ' have investiga, ted three different cycles: A potassium Rankine cycle, a. closed and an open Brayton cycle. These systems v'ere optimized for a power level of 160 MWe and compared...

Keil, Ralph

2012-06-07T23:59:59.000Z

273

PROPULSION AND ENERGY Terrestrial energy  

E-Print Network [OSTI]

PROPULSION AND ENERGY Terrestrial energy On the morning of Monday, August 29, Hurri- cane Katrina dependence we all have on power and energy systems. Nine major oil re- fineries in Louisiana and Mississippi- trial energy community is the question of why alternative energy sources, such as coal, solar, wind

Aggarwal, Suresh K.

274

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

SciTech Connect (OSTI)

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)

None

1981-01-01T23:59:59.000Z

275

Precision engineering for future propulsion and power systems: a perspective from Rolls-Royce  

Science Journals Connector (OSTI)

...supplying integrated power systems to a wide variety...providing high-integrity power systems and services for...into the civil nuclear power arena, the gas turbine...the Rolls-Royce motor car (figure-1) and of...specification of 25 psig. Her water never goes above 70C...

2012-01-01T23:59:59.000Z

276

Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting...  

Broader source: Energy.gov (indexed) [DOE]

August 2003 Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting Tier II Bin 5 DOE and Ford Motor Company Advanced CIDI Emission Control System Development Program...

277

Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting...  

Broader source: Energy.gov (indexed) [DOE]

Advanced CIDI Emission Control System Development Program (DE-FC26-01NT41103) Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting Tier II Bin 5 DOE and Ford...

278

Urea SCR and DPF System for Deisel Sport Utility Vehicle Meeting...  

Broader source: Energy.gov (indexed) [DOE]

- August 25, 2002 1 Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting Tier II Bin 5 DOE and Ford Motor Company Advanced CIDI Emission Control System Development...

279

Applications of Automatic Vehicle Location systems towards improving service reliability and operations planning in London  

E-Print Network [OSTI]

Technological advances in the transit industry, such as the introduction of Automatic Vehicle Location (AVL) systems, have provided agencies with robust data collection and measurement systems and enabled the development ...

Ehrlich, Joseph Emanuel

2010-01-01T23:59:59.000Z

280

Vehicle routing and scheduling for the ultra short haul transportation system  

E-Print Network [OSTI]

A method of vehicle routing and scheduling for an air based intraurban transportation system is developed. The maximization of level of service to passengers in a system operating under time varying demand is considered ...

Smith, Barry C.

1979-01-01T23:59:59.000Z

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.


281

HH22 Reformer, Fuel Cell Power Plant,Reformer, Fuel Cell Power Plant, & Vehicle Refueling System& Vehicle Refueling System  

E-Print Network [OSTI]

sufficient hydrogen demand develops. #12;4 Relevant DOE Program Objectives Reduce dependence on foreign oil Promote use of diverse, domestic energy resources ­ Natural gas reformation Develop and demonstrate on test fill tank, CNG/H2 ICE vehicles and H2 Fuel Cell vehicles. Fuel dispensing integrated with City

282

Electric Propulsion  

Science Journals Connector (OSTI)

...weight, long life-time, and...elec-trically conducting gas; and (iii...but neutral gas, are not subject...systems the turbine extracts from...operation, the remaining fraction of...radiate away the remaining heat, the size...power of the turbine-out-let...if it is a gas, it must be...

W. E. Moeckel

1963-10-11T23:59:59.000Z

283

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

284

VEHICLE DETAILS AND BATTERY SPECIFICATIONS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

285

Thermodynamic consideration of some systems for the cooling of highspeed vehicles  

E-Print Network [OSTI]

Temperature vith Ambient Temperature for Various Mach Number of Vehicle Variation of Carnot, Coefficient of Performance with Sink Temperature 4. Variation of Refrigeration Produced by Open Systems vith the Sink Temperature -- ? ? --? ? ----- 9 5... vehicles. Equations are deri~ed giv1ng the refrigeration produced by the systems and the coefficient. of performance of the systems. The results of the analysis show the maximum conceivable Coefficient of performance for systems closed to the atmosphere...

Rice, Warren

2012-06-07T23:59:59.000Z

286

Modelling and analysis of electric power steering system and its effect on vehicle dynamic behaviour  

Science Journals Connector (OSTI)

While most passenger vehicles equipped with power steering systems are hydraulic power assisted, Electric Power Steering (EPS) systems are becoming wide spread since they can afford higher fuel efficiency. This paper develops an integrated simulation of an EPS control system with a full vehicle model. Using co-simulation technique, a full vehicle model interacting with EPS control algorithm is concurrently simulated on a single bump road condition. The effects of EPS on the vehicle dynamic behaviour and handling responses resulting from steer and road input are analysed and compared with proving ground experimental data. The comparisons show reasonable agreement on tie-rod load, rack displacement, steering wheel torque and tyre centre acceleration. This developed co-simulation capability may be useful for EPS performance evaluation and calibration as well as for vehicle handling performance integration.

Y. Gene Liao; H. Isaac Du

2003-01-01T23:59:59.000Z

287

Microsimulation analysis of a hybrid system model of multiple merge junction highway and semiautomatic vehicles  

E-Print Network [OSTI]

Microsimulation analysis of a hybrid system model of multiple merge junction highway and semi Abstract In this paper we present a protocol that controls semi­automated autonomous vehicles driving is in the merge lane) and the yielding (the vehicle is in the main lane). We show a simulation study that presents

Girault, Alain

288

Under Vehicle Perception for High Level Safety Measures Using A Catadioptric Camera System  

E-Print Network [OSTI]

cost. Moreover, displaying the under frames of the vehicles by typical perspective cameras that haveUnder Vehicle Perception for High Level Safety Measures Using A Catadioptric Camera System Caner Sahin and Mustafa Unel Faculty of Engineering and Natural Sciences Sabanci University Istanbul, Turkey

Yanikoglu, Berrin

289

The Torque Vector Control System of the Switched Reluctance Motor Used in Electric Vehicle  

Science Journals Connector (OSTI)

In the paper, the micro-step method based on the phase current aiming to reduce the torque ripple is proposed. The SRM driving system used in the electric vehicle is presented by TMS320LF2407 as main controller. The hardware circuit and the software ... Keywords: SRM, micro-step, DSP controller, the electric vehicle

Li Jisheng; Gu Ye; Lei Shuying

2010-06-01T23:59:59.000Z

290

Automotive Control Systems: For Engine, Driveline, and Vehicle  

Science Journals Connector (OSTI)

Many engineers, working in the field of automotive control systems and mechatronics, as well as lecturing at technical universities, will welcome this book. It gives a broad insight view of the latest automotive technologies in use which have been adopted over a long period of time from research activities at universities and in industry. About twenty years ago the microcomputer started to revolutionize the possibility of introducing intelligence in systems, for example in the form of advanced control algorithms. By chance, this incredible evolution coincided with increasing environmental demands to reduce pollution and oil consumption and to contribute one of the major tools to meet those demands. This may have been one of the reasons why the automotive industry was rather early in introducing the new technique. However, it would have been interesting if the book had given a short historic review. In fact the authors do not rule out that the modern four-stroke engine in a car may work as an air-cleaning filter, and after going through the part describing the lambda-control together with the catalytic conversion, it is hard to argue against it, at least when the vehicle is running at constant speed. Reading this book you realize that the times are long gone when you could use a screwdriver and feeler gauge to adjust the ignition of your car engine. The subtitle of the book is engine, driveline and vehicle and the book is also divided in that logical order. In the first part, after describing the thermodynamic cycles of different engine types, spark ignited and diesel, the basic engine operations are presented and the reader is given a theoretical insight into what can be done to enhance the performance of the engine. If you have forgotten the basic laws of thermodynamics there is an appendix to recapitulate (however, there is no explanation of the word stoichiometric in case you are not familiar with that). You will also find information on the efficiency of different fuels as well as the efficiency of engines derived from crankshaft motions and thermodynamics. The next chapter describes how the derived models of engine management are used for advanced engine control. The chapter also presents simulation results as well as measurement results. What is especially interesting to read about is how effectively the catalytic conversion works together with lambda-control at stoichiometric combustion of the spark-ignited engine. This is thoroughly explained in the text but a curious reader will not get any information about problems or if there are ongoing activities with emission reduction concerning its competitor, the diesel engine. It is understandable that the book concentrates on the most popular automotive engines but an interested reader might miss that there is nothing in the book that covers the state-of-the-art spark-ignited two-stroke engine. The second part of the book covers the driveline, that is, the parts that transfer the torque of the engine to the wheels. The initial chapters cover the derivation of general models of driveline, basically by applying Newton's second law of motion. Those models are then applied to the modern truck for simulation of the dynamical behaviour. After validation, the appropriate simulation model is used in designing a control system for a transmission that does not need a clutch for shifting gears. Consequently, this part of the book is very interesting since, most likely, one of the authors has worked in close cooperation with the Swedish truck manufacturer Scania. He describes the development behind this unique and patented transmission system. The third and last part of the book deals with the vehicle itself. Initially, geometrical vehicle models of different complexity, the two-track and single-track, are described. They are used to derive the forces acting on the wheels due to road friction and road profile, as well as the driver's input, such as steering and braking. The book claims to have 291 illustrations. The third part of the book, however, could have benefited from more

U Kiencke and L Nielsen

2000-01-01T23:59:59.000Z

291

Vehicle Technologies Office: Advanced Battery Development, System Analysis, and Testing  

Broader source: Energy.gov [DOE]

To develop better lithium-ion (Li-ion) batteries for plug-in electric vehicles, researchers must integrate the advances made in exploratory battery materials and applied battery research into full...

292

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

293

Comparison of AC drives for electric vehicles -- A report on experts` opinion survey  

SciTech Connect (OSTI)

It is recognized that wide applications of electric vehicles (EVs) will bring tremendous social, economical and ecological benefits. With the growing interests in electric vehicles, much effort is demanded for the development of efficient, reliable and economical AC drives` for EV propulsion purpose. Both induction motor (IM) drives and permanent magnet brushless DC motor (BDCM) drives have been applied to EVs. Switched reluctance motor (SRM) drives have been proposed as an alternative for EV propulsion. In order to assess the suitability of IM, BDCM and SRM drives for EV applications and to provide a technical support for the development and selection of future EV propulsion systems, the existing EV AC propulsion drives were compared, and a survey of experts` opinions was conducted. Comparison of the three AC drives was made on a relative and a quantitative basis using the survey questionnaires. According to the majority of the experts, induction motor drives are best suited for EV propulsion purpose, due to their low cost, high reliability, high speed, established converter and manufacturing technology, low torque ripple/noise and absence of position sensors. BDCM drives feature compactness, low weight and high efficiency and therefore provide an alternative for EV propulsion. The experts regard insulated gate bipolar transistors (IGBTs) as the most suited power semiconductor devices for AC drive converters at the present stage. 7 refs.

Chang, L. [New Brunswick Univ., Fredericton, New Brunswick (Canada). Dept. of Electrical Engineering] [New Brunswick Univ., Fredericton, New Brunswick (Canada). Dept. of Electrical Engineering

1994-08-01T23:59:59.000Z

294

Vehicle Technologies Office: Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

295

Abstract--The under-vehicle inspection systems have led to an increased interest to develop the technologies for finding  

E-Print Network [OSTI]

system installed onto an inspection bay built into the ground [1] for detecting underside of the vehicle Abstract-- The under-vehicle inspection systems have led to an increased interest to develop. Features of the approach include the method for under vehicle detection, pose estimation function, data

Ohya, Akihisa

296

Urea SCR and DPF System for Diesel Sport Utility Vehicle Meeting...  

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

Ford Motor Company 2004deerhammerle.pdf More Documents & Publications Urea SCR and DPF System for Deisel Sport Utility Vehicle Meeting Tier II Bin 5 Urea SCR and DPF...

297

The ExoClean Filter System for Stop and Go Vehicles | Department...  

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

Catalyst Assisted DPF regeneration on a Renault truck MD9 Engine Outfitted with SCR A New Active DPF System for "Stop and Go" Duty-Cycle Vehicles SCR & DPF RETROFITS FOR...

298

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

299

Vehicle Technologies Office Merit Review 2014: Advanced Climate Systems for EV Extended Range  

Broader source: Energy.gov [DOE]

Presentation given by Halla Visteon at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced climate systems for EV...

300

A New Active DPF System for "Stop and Go" Duty-Cycle Vehicles  

Broader source: Energy.gov (indexed) [DOE]

- a global thermal management: * a thermal insulation * a catalytic combustion of hydrocarbons The DPF System is applicable to Smoke nbr. <2 m -1 : EURO 1-3 vehicles and...

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

Novel Latent Heat Storage Devices for Thermal Management of Electric Vehicle Battery Systems  

Science Journals Connector (OSTI)

A major aspect for safe and efficient operation of battery electric vehicles (BEV) is the thermal management of their battery systems. As temperature uniformity and level highly ... performance and the lifetime, ...

Ch. Huber; A. Jossen; R. Kuhn

2014-01-01T23:59:59.000Z

302

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

Open Energy Info (EERE)

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...

303

Traction Drive System for Electric Vehicles, Using Multilevel Converters Juan W. Dixon, Micah Ortzar and Felipe Ros  

E-Print Network [OSTI]

Traction Drive System for Electric Vehicles, Using Multilevel Converters Juan W. Dixon, Micah converters for electric vehicles using multilevel inverters. They are being compared with inverters using. Introduction Power Electronics technologies contribute with important part in the development of electric

Catholic University of Chile (Universidad Católica de Chile)

304

DYNAMIC RIDE-SHARING AND OPTIMAL FLEET SIZING FOR A SYSTEM OF1 SHARED AUTONOMOUS VEHICLES2  

E-Print Network [OSTI]

DYNAMIC RIDE-SHARING AND OPTIMAL FLEET SIZING FOR A SYSTEM OF1 SHARED AUTONOMOUS VEHICLES2 3 4 and for publication in Transportation21 22 23 ABSTRACT24 25 Shared autonomous (fully-automated) vehicles (SAVs

Kockelman, Kara M.

305

2007 Propulsion Materials Annual Progress Report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

306

Design of Hydrogen Fuel Cell Systems for Road Vehicles  

Science Journals Connector (OSTI)

Several models of FC vehicles fuelled by H2 have been produced by many car’s industries in the past two decades, ... of 2009 the new model B class F-Cell equipped with new generations of fuel cells, Li-ion batter...

Pasquale Corbo; Fortunato Migliardini…

2011-01-01T23:59:59.000Z

307

Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

308

Mars Mission Analysis Trades Based on Legacy and Future Nuclear Propulsion Options  

Science Journals Connector (OSTI)

The purpose of this paper is to discuss the results of mission?based system trades when using a nuclear thermal propulsion (NTP) system for Solar System exploration. The results are based on comparing reactor designs that use a ceramic?metallic (CERMET) graphite matrix graphite composite matrix or carbide matrix fuel element designs. The composite graphite matrix and CERMET designs have been examined for providing power as well as propulsion. Approaches to the design of the NTP to be discussed will include an examination of graphite composite carbide and CERMET core designs and the attributes of each in regards to performance and power generation capability. The focus is on NTP approaches based on tested fuel materials within a prismatic fuel form per the Argonne National Laboratory testing and the ROVER/NERVA program. NTP concepts have been examined for several years at Pratt & Whitney Rocketdyne for use as the primary propulsion for human missions beyond earth. Recently an approach was taken to examine the design trades between specific NTP concepts; NERVA?based (UC)C?Graphite (UC ZrC)C?Composite (U Zr)C?Solid Carbide and UO2?W CERMET. Using Pratt & Whitney Rocketdyne’s multidisciplinary design analysis capability a detailed mission and vehicle model has been used to examine how several of these NTP designs impact a human Mars mission. Trends for the propulsion system mass as a function of power level (i.e. thrust size) for the graphite?carbide and CERMET designs were established and correlated against data created over the past forty years. These were used for the mission trade study. The resulting mission trades presented in this paper used a comprehensive modeling approach that captures the mission vehicle subsystems and NTP sizing.

Russell Joyner; Andrea Lentati; Jaclyn Cichon

2007-01-01T23:59:59.000Z

309

Mars Mission Analysis Trades Based on Legacy and Future Nuclear Propulsion Options  

SciTech Connect (OSTI)

The purpose of this paper is to discuss the results of mission-based system trades when using a nuclear thermal propulsion (NTP) system for Solar System exploration. The results are based on comparing reactor designs that use a ceramic-metallic (CERMET), graphite matrix, graphite composite matrix, or carbide matrix fuel element designs. The composite graphite matrix and CERMET designs have been examined for providing power as well as propulsion. Approaches to the design of the NTP to be discussed will include an examination of graphite, composite, carbide, and CERMET core designs and the attributes of each in regards to performance and power generation capability. The focus is on NTP approaches based on tested fuel materials within a prismatic fuel form per the Argonne National Laboratory testing and the ROVER/NERVA program. NTP concepts have been examined for several years at Pratt and Whitney Rocketdyne for use as the primary propulsion for human missions beyond earth. Recently, an approach was taken to examine the design trades between specific NTP concepts; NERVA-based (UC)C-Graphite, (UC,ZrC)C-Composite, (U,Zr)C-Solid Carbide and UO2-W CERMET. Using Pratt and Whitney Rocketdyne's multidisciplinary design analysis capability, a detailed mission and vehicle model has been used to examine how several of these NTP designs impact a human Mars mission. Trends for the propulsion system mass as a function of power level (i.e. thrust size) for the graphite-carbide and CERMET designs were established and correlated against data created over the past forty years. These were used for the mission trade study. The resulting mission trades presented in this paper used a comprehensive modeling approach that captures the mission, vehicle subsystems, and NTP sizing.

Joyner, Russell [Pratt and Whitney Rocketdyne, West Palm Beach, Florida (United States); Lentati, Andrea [Georgia Institute of Technology, Atlanta, Georgia (United States); Cichon, Jaclyn [University of Florida, Gainesville, Florida (United States)

2007-01-30T23:59:59.000Z

310

Advances in Diode Laser Absorption Sensors for Combustion and Propulsion  

Science Journals Connector (OSTI)

Progress is reported in the evolution of diode laser sensors for combustion and propulsion systems. Applications are diverse, ranging from IC engines and gas turbine combustors to...

Hanson, Ronald K

311

NREL: Vehicles and Fuels Research - Hybrid Electric Fleet Vehicle...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hybrid Electric Fleet Vehicle Testing How Hybrid Electric Vehicles Work Hybrid electric vehicles combine a primary power source, an energy storage system, and an electric motor to...

312

Blog Feed: Vehicles | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

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

313

Alkali metal Rankine cycle boiler technology challenges and some potential solutions for space nuclear power and propulsion applications  

SciTech Connect (OSTI)

Alkali metal boilers are of interest for application to future space Rankine cycle power conversion systems. Significant progress on such boilers was accomplished in the 1960's and early 1970's, but development was not continued to operational systems since NASA's plans for future space missions were drastically curtailed in the early 1970's. In particular, piloted Mars missions were indefinitely deferred. With the announcement of the Space Exploration Initiative (SEI) in July 1989 by President Bush, interest was rekindled in challenging space missions and, consequently in space nuclear power and propulsion. Nuclear electric propulsion (NEP) and nuclear thermal propulsion (NTP) were proposed for interplanetary space vehicles, particularly for Mars missions. The potassium Rankine power conversion cycle became of interest to provide electric power for NEP vehicles and for 'dual-mode' NTP vehicles, where the same reactor could be used directly for propulsion and (with an additional coolant loop) for power. Although the boiler is not a major contributor to system mass, it is of critical importance because of its interaction with the rest of the power conversion system; it can cause problems for other components such as excess liquid droplets entering the turbine, thereby reducing its life, or more critically, it can drive instabilities-some severe enough to cause system failure. Funding for the SEI and its associated technology program from 1990 to 1993 was not sufficient to support significant new work on Rankine cycle boilers for space applications. In Fiscal Year 1994, funding for these challenging missions and technologies has again been curtailed, and planning for the future is very uncertain. The purpose of this paper is to review the technologies developed in the 1960's and 1970's in the light of the recent SEI applications. In this way, future Rankine cycle boiler programs may be conducted most efficiently.

Stone, J.R.

1994-07-01T23:59:59.000Z

314

Fault tolerant control of automatically controlled vehicles in response to brake system failures  

E-Print Network [OSTI]

in the brake system is vital. In this thesis, nonlinear failure detection filters are used for fault detection of sensors and actuators in a class of nonlinear systems. In this thesis, the effects of brake system failures in an AHS where the vehicle steering...

Hsien, Li-Wei

2012-06-07T23:59:59.000Z

315

Marine Nuclear Propulsion  

Science Journals Connector (OSTI)

... June 30 about 95 qualified scientists and engineers were engaged on research and development on marine nuclear ... nuclear propulsion within his Department, including the Atomic Energy Authority and the Ship Research Association. This ...

1965-07-31T23:59:59.000Z

316

Artificial neural network modelling of driver handling behaviour in a driver-vehicle-environment system  

Science Journals Connector (OSTI)

Modelling driver handling behaviour in a driver-vehicle-environment (DVE) system is essentially useful for the design of vehicle systems and transport systems in the light of the safety and efficiency of human mobility. Driver handling behaviour is reflected in two aspects: the mental workload and the performance. Further, this behaviour is exposed through the interactions between driver-vehicle and driver-environment. There is generally a lack of the first principle with which to develop a model for human behaviour. In this study, several more sophisticated artificial neural network architectures for developing models for human drivers in a DVE system were used. The vehicle dynamics are modelled by a 3-d.o.f. model derived from the first principle. The experiment was performed and compared with a DVE simulation system in which the developed human driver behaviour model was included, together with the vehicle dynamics model. The comparative study showed that the simulation result is in good agreement with the experimental result, which further justifies the effectiveness of the developed driver behaviour model.

Y. Lin; P. Tang; W.J. Zhang; Q. Yu

2005-01-01T23:59:59.000Z

317

Work domain analysis and intelligent transport systems: implications for vehicle design  

Science Journals Connector (OSTI)

This article presents a Work Domain Analysis (WDA) of the road transport system in Victoria, Australia. A series of driver information requirements and tasks that could potentially be supported through the use of Intelligent Transport Systems (ITS) are then extracted from the WDA. The potential use of ITS technologies to circumvent these information gaps and provide additional support to drivers is discussed. It is concluded that driver information requirements are currently not entirely satisfied by contemporary vehicle design and also that there are a number of driving tasks that could be further supported through the provision of supplementary systems within vehicles.

Paul M. Salmon; Michael Regan; Michael G. Lenne; Neville A. Stanton; Kristie Young

2007-01-01T23:59:59.000Z

318

Improving the Efficiency of Light-Duty Vehicle HVAC Systems using Zonal Thermoelectric Devices and Comfort Modeling  

Broader source: Energy.gov [DOE]

Summarizes results from a study to identify and demonstrate technical and commercial approaches necessary to accelerate the deployment of zonal TE HVAC systems in light-duty vehicles

319

An Onboard Monocular Vision System for Autonomous Takeoff, Hovering and Landing of a Micro Aerial Vehicle  

E-Print Network [OSTI]

An Onboard Monocular Vision System for Autonomous Takeoff, Hovering and Landing of a Micro Aerial monocular vision system for autonomous takeoff, hovering and landing of a Micro Aerial Vehicle (MAV). Since pose, yaw angle of the MAV, is estimated from the ellipse fitted from the letter "H". The efficiency

Zell, Andreas

320

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

SciTech Connect (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

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

Radioisotope electric propulsion (REP): A near-term approach to nuclear propulsion  

Science Journals Connector (OSTI)

Studies over the last decade have shown radioisotope-based nuclear electric propulsion to be enhancing and, in some cases, enabling for many potential robotic science missions. Also known as radioisotope electric propulsion (REP), the technology offers the performance advantages of traditional reactor-powered electric propulsion (i.e., high specific impulse propulsion at large distances from the Sun), but with much smaller, affordable spacecraft. Future use of REP requires development of radioisotope power sources with system specific powers well above that of current systems. The US Department of Energy and NASA have developed an advanced Stirling radioisotope generator (ASRG) engineering unit, which was subjected to rigorous flight qualification-level tests in 2008, and began extended lifetime testing later that year. This advancement, along with recent work on small ion thrusters and life extension technology for Hall thrusters, could enable missions using REP sometime during the next decade.

George R. Schmidt; David H. Manzella; Hani Kamhawi; Tibor Kremic; Steven R. Oleson; John W. Dankanich; Leonard A. Dudzinski

2010-01-01T23:59:59.000Z

322

Vehicle Technologies Office Merit Review 2014: Advanced Combustion Concepts- Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles  

Broader source: Energy.gov [DOE]

Presentation given by Robert Bosch at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced combustion concepts -...

323

Design Principles of a flywheel Regenerative Braking System (f-RBS) for Formula SAE type racecar and system testing on a Virtual Test Rig modeled on MSC ADAMS  

E-Print Network [OSTI]

momentum in the industry [4]. These vehicles (BEVs and HEVS) use electric motor/generator pairs to propel themselves and to recapture braking energy (electric RBS) and the power source is the battery. The regenerative braking system uses a generator..., aerodynamic and road losses. 4. Improvised Transmission design to reduce losses. 5. Hybrid and Alternative Energy Propulsion systems e.g. the Hybrid Electric Vehicle (HEV), the Fuel Cell Vehicle (FCV). 6. Recycling Braking energy – Storage and reuse...

Pochiraju, Anirudh

2012-08-31T23:59:59.000Z

324

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

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

325

Overview of Propulsion Materials  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

326

Overview of Propulsion Materials  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

327

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

328

Lateral Control of Heavy Vehicles for Automated Systems  

E-Print Network [OSTI]

system tracks the desired front wheel steering angle (? 1 ) exactly, then the sliding variable will asymptotically converg to a ball,

Hingwe, Pushkar; Wang, Jen-Yu; Tai, Meihua; Tomizuka, Masayoshi

2003-01-01T23:59:59.000Z

329

Vehicle System Dynamics, 32 (1999), pp.389408 0042-3114/99/3204-389$15.00 Swets & Zeitlinger  

E-Print Network [OSTI]

, and the evaluation of an active yaw control system. In both cases, the worst-case method was able to produce unstableVehicle System Dynamics, 32 (1999), pp.389­408 0042-3114/99/3204-389$15.00 ©Swets & Zeitlinger Worst-Case Vehicle Evaluation Methodology-- Examples on Truck Rollover/Jackknifing and Active Yaw

Peng, Huei

330

Research Positionsfor Development of Novel Green Air Conditioning and Refrigeration Systems for Transportation Vehicles  

E-Print Network [OSTI]

in refrigeration and heat pump systems, HVAC, porous media development/characterization, transport phenomena of compact and lightweight heat exchangers for evaporator and condenser; v) Development of heatdriven adsorption chillers tailored to service vehicles; vi) Development and implementation of thermal energy

Bahrami, Majid

331

Cost-Effective Design of a Hybrid Electrical Energy Storage System for Electric Vehicles  

E-Print Network [OSTI]

of the battery cycle efficiency and state of health, characteristics of the supercapacitor bank, and dynamics energy storage system comprised of Li-ion batteries only. 1. INTRODUCTION Electric vehicles (EVs) have highly dependent on the intrinsic characteristics of Li-ion batteries. The cycle efficiency degradation

Pedram, Massoud

332

Recent advances in nuclear powered electric propulsion for space exploration  

Science Journals Connector (OSTI)

Nuclear and radioisotope powered electric thrusters are being developed as primary in space propulsion systems for potential future robotic and piloted space missions. Possible applications for high-power nuclear electric propulsion include orbit raising and maneuvering of large space platforms, lunar and Mars cargo transport, asteroid rendezvous and sample return, and robotic and piloted planetary missions, while lower power radioisotope electric propulsion could significantly enhance or enable some future robotic deep space science missions. This paper provides an overview of recent US high-power electric thruster research programs, describing the operating principles, challenges, and status of each technology. Mission analysis is presented that compares the benefits and performance of each thruster type for high priority NASA missions. The status of space nuclear power systems for high-power electric propulsion is presented. The paper concludes with a discussion of power and thruster development strategies for future radioisotope electric propulsion systems.

R. Joseph Cassady; Robert H. Frisbee; James H. Gilland; Michael G. Houts; Michael R. LaPointe; Colleen M. Maresse-Reading; Steven R. Oleson; James E. Polk; Derrek Russell; Anita Sengupta

2008-01-01T23:59:59.000Z

333

Data Acquisition System for Electric Vehicle's Driving Motor Test Bench Based on VC++  

Science Journals Connector (OSTI)

In order to solve such problems as great labor intensity, high cost, low efficiency and accuracy during the performance experiment for driving motor system of electric vehicles, and realize data acquisition automatically and synchronously, a data acquisition system for driving motor test bench based on visual instruments is designed. This data acquisition system can be used to obtain the driving motor's parameters of currents and voltages at the same time. This system's hardware is based on electric vehicle's motor test bench in Beijing Institute of Technology, and combined with PXI2010 data acquisition card from ADLINK Company. Visual c++ software is adopted as development tool. In this paper, the design and realization of the hardware and software are presented. Experiment results show that this system improves the efficiency and quality of testing task with high utility. And experiment data can be obtained accurately.

Song Qiang; Lv Chenguang

2012-01-01T23:59:59.000Z

334

Development of an automated Red Light Violation Detection System (RLVDS) for Indian vehicles  

E-Print Network [OSTI]

Integrated Traffic Management Systems (ITMS) are now implemented in different cities in India to primarily address the concerns of road-safety and security. An automated Red Light Violation Detection System (RLVDS) is an integral part of the ITMS. In our present work we have designed and developed a complete system for generating the list of all stop-line violating vehicle images automatically from video snapshots of road-side surveillance cameras. The system first generates adaptive background images for each camera view, subtracts captured images from the corresponding background images and analyses potential occlusions over the stop-line in a traffic signal. Considering round-the-clock operations in a real-life test environment, the developed system could successfully track 92% images of vehicles with violations on the stop-line in a "Red" traffic signal.

Saha, Satadal; Nasipuri, Mita; Basu, Dipak Kumar

2010-01-01T23:59:59.000Z

335

The potential of intelligent vehicle highway systems for enhanced traveler security  

SciTech Connect (OSTI)

The Intelligent Vehicle Highway System (IVHS) program that was mandated by the Intermodal Surface Transportation Efficiency Act of 1991 (ISTEA) presents a number of opportunities and challenges. While the program primarily is intended to address the problem of traffic congestion, the technologies it will require could also be used to enhance the safety and security of the traveling public. Public transit systems offer the most likely near-term opportunities both for IVHS-type technologies, and for new security measures to be applied. This paper will address some of the possible security functions that could be applied to transit systems by utilizing the availability of Automatic Vehicle Location systems (AVL), broadband digital communication systems, and other IVHS functions.

Caskey, D.L.

1992-12-31T23:59:59.000Z

336

Proceedings, Digital Signal Processing for in-Vehicle and mobile systems, Istanbul, Turkey, June 2007. MACHINE LEARNING SYSTEMS FOR DETECTING DRIVER DROWSINESS  

E-Print Network [OSTI]

detection system is one of the potential applications of in- telligent vehicle systems. Previous approachesProceedings, Digital Signal Processing for in-Vehicle and mobile systems, Istanbul, Turkey, June 2007. MACHINE LEARNING SYSTEMS FOR DETECTING DRIVER DROWSINESS Esra Vural, Mujdat Cetin, Aytul Ercil

Bartlett, Marian Stewart

337

Thermodynamics and rocket propulsion  

Science Journals Connector (OSTI)

Thermodynamics and rocket propulsion ... This paper outlines the application of the principles of chemical thermodynamics to a comparison of the merit of one rocket propellant (fuel plus oxidizer) with that of another fuel-oxidizer pair for liquid-fueled rocket motors. ... Thermodynamics ...

Frank H. Verhoek

1969-01-01T23:59:59.000Z

338

A Component Evaluation Tool from the Vehicle System Perspective  

Broader source: Energy.gov (indexed) [DOE]

Testbed) is a Modular Hybrid Test Environment for Component Evaluation Emulated electric traction system: *Battery pack simulated *Motor-inverter emulated *Physical motor...

339

2006-2010 GATE program at Ohio State University Center for Automotive Research: Modeling, control and system integration of advanced automotive propulsion systems  

Broader source: Energy.gov [DOE]

Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

340

Batteries, vehicle and infrastructure: interlocking elements of a new engineering system concept for personal mobility  

Science Journals Connector (OSTI)

The concept proposed aims at overcoming deterrents to Electric Vehicle (EV) adoption. The system features quick en-route exchange of batteries, requiring minimal equipment at the battery exchange station, which stands in favour of this EV system's adoption. The human interface of the equipment was devised to satisfy ergonomic requirements. Added convenience and speed of battery exchange can be achieved with more sophisticated equipment installed at exchange stations where depleted vehicle batteries are swiftly swapped for fully charged ones in only a couple of minutes. The EV proposed has standard plug-in capability for regular battery charge. It is based on a notion of ownership beyond common entrenched models, since the battery system is to be owned by the organisations that are to provide the en-route exchange service. The paper concludes listing the most important engineering aspects that need to be dealt with in the engineering design of the system concept.

Denis A. Coelho; Andre S. Camboa

2010-01-01T23:59:59.000Z

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

A Fuzzy-Based Strategy to Improve Control Reconfiguration Performance of a Sensor Fault-Tolerant Induction Motor Propulsion  

E-Print Network [OSTI]

recovery in the Electric (EV) or Hybrid Electric Vehicle (HEV) induction motor drive. To achieve this goal-ref · Fault Tolerant Controller HybridHybrid ElectricElectric VehicleVehicle Induction Motor Sensorless Fuzzy-Tolerant Induction Motor Propulsion Bekheira Tabbache1,2 , Mohamed Benbouzid1 , Abdelaziz Kheloui2 and Jean

Paris-Sud XI, Université de

342

US DRIVE Vehicle Systems and Analysis Technical Team Roadmap  

Broader source: Energy.gov [DOE]

VSATT provides the analytic support and subsystem characterizations that guide technology and system selections and assist U.S. DRIVE Technical Teams in determining performance goals and validation metrics.

343

Solar Sail Propulsion: An Enabling Technology for Fundamental Physics Missions  

Science Journals Connector (OSTI)

Solar sails enable a wide range of high- ... system. They are also an enabling propulsion technology for two types of deep-space missions ... and the large-scale gravitational field of the solar system: the first...

Bernd Dachwald; Wolfgang Seboldt; Claus Lammerzahl

2008-01-01T23:59:59.000Z

344

Propulsion Materials Research Update  

Broader source: Energy.gov [DOE]

Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

345

2006-01-0443 Engine-in-the-Loop Testing for Evaluating Hybrid Propulsion  

E-Print Network [OSTI]

at the vehicle level. INTRODUCTION Diesel engines are particularly suited for medium-duty vehicles due in controlling engine operation and generally reduce the total mass of exhaust. However, it may not be possible2006-01-0443 Engine-in-the-Loop Testing for Evaluating Hybrid Propulsion Concepts and Transient

Peng, Huei

346

JET PROPULSION LABORATORY 1979 Annual Report  

E-Print Network [OSTI]

, is the most active and complex volcanic body in our solar system and has a surface composed primarily of Technology and the National Aeronautics and Space Administration for the period January 1 to December 31 JPL Technology Institutional Activities JET PROPULSION LABORATORY California Institute of Technology

Waliser, Duane E.

347

EIC Climate Change Technology Conference 2013 Electric Trolleybus System Proposed for Downtown St. John's for Private Vehicles  

E-Print Network [OSTI]

, specifically an electric trolleybus system for controlling both on-road vehicle volumes and emissions fuel, air pollution, climate change, global warming, external costs, vehicle population, electric (ICE) with electric power [2] and to propel automobiles with steam engines but high costs and risk

Coles, Cynthia

348

Development of a measuring system for parking position Can wireless charging of electric vehicles deliver its full  

E-Print Network [OSTI]

of our projects aims to obtain a better understanding of wireless charging of electric vehicles regarding connection of electric vehicles to the grid. In order for wireless charging to be successful1 Development of a measuring system for parking position ­ Can wireless charging of electric

Zhao, Yuxiao

349

Analytical models to evaluate system performance measures for vehicle based material-handling systems under various dispatching policies  

E-Print Network [OSTI]

are considered. Those are workcenter-initiated vehicle dispatching rules and vehicle-initiated vehicle dispatching rules. For the workcenterinitiated vehicle dispatching rule, the Closest Transporter Allocation Rule (CTAR) was used to assign empty transporters...

Lee, Moonsu

2005-08-29T23:59:59.000Z

350

Feasibility of MHD submarine propulsion  

SciTech Connect (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

351

Experimental investigation of battery thermal management system for electric vehicle based on paraffin/copper foam  

Science Journals Connector (OSTI)

Abstract To enhance the heat transfer of phase change material in battery thermal management system for electric vehicle, a battery thermal management system by using paraffin/copper foam was designed and experimentally investigated in this paper. The thermal performances of the system such as temperature reduction and distribution are discussed in detail. The results showed that the local temperature difference in both a single cell and battery module were increased with the increase of discharge current, and obvious fluctuations of local temperature difference can be observed when the electric vehicle is in road operating state. When the battery is discharging at constant current, the maximum temperature and local temperature difference of the battery module with paraffin/copper foam was lower than 45 °C and 5 °C, respectively. After the battery thermal management system was assembled in electric vehicle, the maximum temperature and local temperature difference in road operating state was lower than 40 °C and 3 °C, respectively. The experimental results demonstrated that paraffin/copper foam coupled battery thermal management presented an excellent cooling performance.

Zhonghao Rao; Yutao Huo; Xinjian Liu; Guoqing Zhang

2014-01-01T23:59:59.000Z

352

ESS 2012 Peer Review - Secondary Use of Vehicle Batteries in Power Systems - Omer Onar, ORNL  

Broader source: Energy.gov (indexed) [DOE]

/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

353

Advanced Vehicle Testing & Evaluation | Department of Energy  

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

Evaluation vss029karner2011o.pdf More Documents & Publications Advanced Vehicle Testing & Evaluation Vehicle Technologies Office: 2010 Vehicle and Systems Simulation and...

354

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

SciTech Connect (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

355

Use of CADD/CAE for remote vehicle system mission planning  

SciTech Connect (OSTI)

Many factors contribute to the successful completion of a remotely operated vehicle mission. Among the most important is mission planning: a comprehensive evaluation of the objectives of the mission, the equipment and operator capabilities, and the physical constraints within the environment into which the equipment will be deployed. Experience gained during the recovery of Three Mile Island Unit 2 (TMI-2) indicates that computerized design and drafting systems (CADD) can be used as an effective aid in mission planning which can improve the efficiency, quality, and execution of tasks using remote vehicle systems. CADD systems can be utilized for pretask identification of alternative vehicle transit routes, interferences and obstructions to remote equipment movement, identification of landmarks from which the equipment operators can navigate, and operator familiarization with the physical layout and work area constraints. All of this can result in a reduction in the time and cost required to perform a job, and in a nuclear environment can also result in a significant reduction in personnel radiation exposure.

Auclair, K.D.; Palau, G.L.

1986-01-01T23:59:59.000Z

356

Vehicle System Dynamics Vol. 43, No. 67, JuneJuly 2005, 437453  

E-Print Network [OSTI]

automotive electronics, and smart vehicles. Keywords: Ground vehicles; Vehicle design; Optimization; Active design problems, including the integration of electronic controls, is given, thus further encouraging the use of such methods as standard tools for automotive engineers. Particular attention

Papalambros, Panos

357

Modeling and Optimization of PEMFC Systems and its Application to Direct Hydrogen Fuel Cell Vehicles  

E-Print Network [OSTI]

a Direct-Hydrogen, Load-Following Fuel Cell Vehicle, SAEversus a Direct-Hydrogen Load-Following Fuel Cell Vehicle,vehicle model of a load-following direct hydrogen fuel cell

Zhao, Hengbing; Burke, Andy

2008-01-01T23:59:59.000Z

358

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

359

EV Everywhere: Electric Drive Systems Bring Power to Plug-in Electric Vehicles  

Broader source: Energy.gov [DOE]

Find out how the Energy Department's Vehicles Technologies Office is helping reduce the cost of plug-in electric vehicles through research and development of electric drive technologies.

360

Diesel-electric marine propulsion grows in popularity  

SciTech Connect (OSTI)

A recent conference on electric ship propulsion held in London highlighted the big strides made in this field in the last few years. What has given the technology a tremendous fillip in recent years is the new generation of ac/ac electrical drives resulting from the development of reliable high-power semiconductor devices and their associated control systems. Diesel-electric propulsion systems provide flexibility both for the operation of the vessel and in the layout of the main components - gen-sets, converters, switchgear and propulsion motors, for example. Furthermore, the system enables the `power station` philosophy to be applied, with propulsion and all ship`s services being supplied from one power source. This paper discusses the main diesel electric systems available today.

Mullins, P.

1996-03-01T23:59:59.000Z

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

Application of ion electrospray propulsion to lunar and interplanetary missions  

E-Print Network [OSTI]

High specific impulse electric propulsion systems enable ambitious lunar and interplanetary missions that return a wealth of scientific data. Many of these technologies are difficult to scale down, meaning the spacecraft ...

Whitlock, Caleb W. (Caleb Wade)

2014-01-01T23:59:59.000Z

362

VEHICLE SPECIFICATIONS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

363

Vehicle Technologies Office 2013 Merit Review: A System for Automatically Maintaining Pressure in a Commercial Truck Tire  

Broader source: Energy.gov [DOE]

A presentation given by PPG during the 2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting on a system for automatically maintaining tire pressure in commercial truck tires.

364

Optimal Sizing of Energy Storage System in Solar Energy Electric Vehicle Using Genetic Algorithm and Neural Network  

Science Journals Connector (OSTI)

Owing to sun’s rays distributing randomly and discontinuously and load fluctuation, energy storage system is very important in Solar Energy Electric Vehicle (SEEV). The combinatorial optimization ... and neural n...

Shiqiong Zhou; Longyun Kang; MiaoMiao Cheng…

2007-01-01T23:59:59.000Z

365

Transient modeling and validation of lithium ion battery pack with air cooled thermal management system for electric vehicles  

Science Journals Connector (OSTI)

A transient numerical model of a lithium ion battery (LiB) pack with air cooled thermal management system is developed and validated for electric vehicle applications. In the battery model, the open circuit volta...

G. Y. Cho; J. W. Choi; J. H. Park; S. W. Cha

2014-08-01T23:59:59.000Z

366

NREL: Vehicles and Fuels Research - Hydraulic Hybrid Fleet Vehicle...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hydraulic Hybrid Fleet Vehicle Testing How Hydraulic Hybrid Vehicles Work Hydraulic hybrid systems can capture up to 70% of the kinetic energy that would otherwise be lost during...

367

Design and development of a vehicle routing system under capacity, time-windows and rush-order reloading considerations  

E-Print Network [OSTI]

DESIGN AND DEVELOPMENT OF A VEHICLE ROUTING SYSTEM UNDER CAPACITY, TIME-WINDOWS AND RUSH-ORDER RELOADING CONSIDERATIONS A Thesis by GOPALAKRISHNAN EASWARAN Submitted to the Office of Graduate Studies of Texas A&M University... in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2003 Major Subject: Industrial Engineering DESIGN AND DEVELOPMENT OF A VEHICLE ROUTING SYSTEM UNDER CAPACITY, TIME-WINDOWS AND RUSH-ORDER RELOADING...

Easwaran, Gopalakrishnan

2004-11-15T23:59:59.000Z

368

The impact of electric vehicles on the Southern California Edison System. Final report  

SciTech Connect (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

369

The impact of electric vehicles on the Southern California Edison System  

SciTech Connect (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

370

‘Optimal’ vortex rings and aquatic propulsion mechanisms  

Science Journals Connector (OSTI)

...vortex rings and aquatic propulsion mechanisms P. F. Linden...fluid mechanics behind these propulsion mechanisms and show that...over the cycle. 4. FISH PROPULSION BY UNDULATORY SWIMMING Most marine organisms have only discrete...

2004-01-01T23:59:59.000Z

371

Electric Drive Vehicle Demonstration and Vehicle Infrastructure...  

Broader source: Energy.gov (indexed) [DOE]

Electric Drive Vehicle Demonstration and Vehicle Infrastructure Evaluation Electric Drive Vehicle Demonstration and Vehicle Infrastructure Evaluation 2010 DOE Vehicle Technologies...

372

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]

tool, and its application to the design of a power management control algorithm. The hybrid electric to improve vehicle fuel economy significantly, compared with the original vehicle, powered only by a diesel engine. Keywords: electric vehicles, electric-vehicle simulation, hybrid electric vehicles, hybrid

Peng, Huei

373

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

374

Community Energy: Analysis of Hydrogen Distributed Energy Systems with Photovoltaics for Load Leveling and Vehicle Refueling  

SciTech Connect (OSTI)

Energy storage could complement PV electricity generation at the community level. Because PV generation is intermittent, strategies must be implemented to integrate it into the electricity system. Hydrogen and fuel cell technologies offer possible PV integration strategies, including the community-level approaches analyzed in this report: (1) using hydrogen production, storage, and reconversion to electricity to level PV generation and grid loads (reconversion scenario); (2) using hydrogen production and storage to capture peak PV generation and refuel hydrogen fuel cell electric vehicles (FCEVs) (hydrogen fueling scenario); and (3) a comparison scenario using a battery system to store electricity for EV nighttime charging (electric charging scenario).

Steward, D.; Zuboy, J.

2014-10-01T23:59:59.000Z

375

Waste Crate and Container Imaging Using the Vehicle and Cargo Inspection System. Innovative Technology Summary Report  

SciTech Connect (OSTI)

The Vehicle and Cargo Inspection System (VACIS) is a highly penetrating gamma ray imaging system that provides a means to non-invasively image crate contents prior to crate disassembly. The VACIS unit uses a 1.6 Curie collimated source (Cesium-137) aimed at a linear detector to create an image as the unit passes by the crate. In the demonstrated mobile unit, the source and detector were mounted on a boom truck. As the crate passed between the source and detector, a near real-time composite image of the contents was constructed from the linear image of the VACIS unit's on board computer and recorded on disk.

None

2000-07-01T23:59:59.000Z

376

Vehicle Technologies Office Merit Review 2014: In-Vehicle Evaluation...  

Broader source: Energy.gov (indexed) [DOE]

In-Vehicle Evaluation of Lower-Energy Energy Storage System (LEESS) Devices Vehicle Technologies Office Merit Review 2014: In-Vehicle Evaluation of Lower-Energy Energy Storage...

377

Life Cycle Modeling of Propulsion Materials  

Broader source: Energy.gov (indexed) [DOE]

propulsion materials manufacturing technologies with an emphasis on aluminum, magnesium, titanium, and ceramics * Advanced propulsion materials' potential in heavy-duty...

378

A new laser-based system for obstacle detection including step, hole and slope for Personal Mobility Vehicles  

E-Print Network [OSTI]

A new laser-based system for obstacle detection including step, hole and slope for Personal, and with standard chair wheels difficult. In this paper, we present a step and curb detection system based on laser sensors. This system is dedicated to vehicles able to cross over steps, for transportation systems

Paris-Sud XI, Université de

379

Integrated operation of electric vehicles and renewable generation in a smart distribution system  

Science Journals Connector (OSTI)

Abstract Distribution system complexity is increasing mainly due to technological innovation, renewable Distributed Generation (DG) and responsive loads. This complexity makes difficult the monitoring, control and operation of distribution networks for Distribution System Operators (DSOs). In order to cope with this complexity, a novel method for the integrated operational planning of a distribution system is presented in this paper. The method introduces the figure of the aggregator, conceived as an intermediate agent between end-users and DSOs. In the proposed method, energy and reserve scheduling is carried out by both aggregators and DSO. Moreover, Electric Vehicles (EVs) are considered as responsive loads that can participate in ancillary service programs by providing reserve to the system. The efficiency of the proposed method is evaluated on an 84-bus distribution test system. Simulation results show that the integrated scheduling of \\{EVs\\} and renewable generators can mitigate the negative effects related to the uncertainty of renewable generation.

Alireza Zakariazadeh; Shahram Jadid; Pierluigi Siano

2015-01-01T23:59:59.000Z

380

Implementation of an Onboard Visual Tracking System with Small Unmanned Aerial Vehicle (UAV)  

E-Print Network [OSTI]

This paper presents a visual tracking system that is capable or running real time on-board a small UAV (Unmanned Aerial Vehicle). The tracking system is computationally efficient and invariant to lighting changes and rotation of the object or the camera. Detection and tracking is autonomously carried out on the payload computer and there are two different methods for creation of the image patches. The first method starts detecting and tracking using a stored image patch created prior to flight with previous flight data. The second method allows the operator on the ground to select the interest object for the UAV to track. The tracking system is capable of re-detecting the object of interest in the events of tracking failure. Performance of the tracking system was verified both in the lab and during actual flights of the UAV. Results show that the system can run on-board and track a diverse set of objects in real time.

Qadir, Ashraf; Neubert, Jeremiah

2012-01-01T23:59:59.000Z

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.


381

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

382

E-Print Network 3.0 - advanced space propulsion Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: for space drilling. The Jet Propulsion Laboratory's (JPL) ultrasonicsonic drillercorer (USDC... 1 Design and Modeling of the NU Smart Space Drilling System (SSDS)...

383

E-Print Network 3.0 - advanced propulsion concepts Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

on the field emission principle... advanced technology in power conversion. The main advantages of a propulsion system based on the field emis... AS THRUSTERS FOR ELECTRIC SPACE...

384

Design, Construction and Performance of a Buck-Boost Converter for an Ultracapacitor-Based Auxiliary Energy System for Electric Vehicles  

E-Print Network [OSTI]

-Based Auxiliary Energy System for Electric Vehicles Micah Ortúzar, Juan Dixon (SM IEEE) and Jorge Moreno decades. Nevertheless, pure electric vehicles still have not achieved ranges comparable to that of gas powered conventional vehicles. This problem, due to the low energy density and specific energy contained

Catholic University of Chile (Universidad Católica de Chile)

385

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

386

Polymers for hydrogen infrastructure and vehicle fuel systems : applications, properties, and gap analysis.  

SciTech Connect (OSTI)

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; San Marchi, Christopher W.

2013-10-01T23:59:59.000Z

387

ENSC 461 PROJECT: Next generation air conditioning systems for vehicles Assigned date: Feb. 21, 2011 Due date: April 11, 2011  

E-Print Network [OSTI]

to significant power consumption of vapour-compression systems, finding a new "green" refrigerant is another vehicles (HEVs), as it is the second most energy consuming system after the electric motor. Further, HVAC air conditioning systems used in the automotive industry are based on vapour-compression refrigeration

Bahrami, Majid

388

Vehicle Technologies Office: Lubricants  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

389

Commercializing Light-Duty Plug-In/Plug-Out Hydrogen-Fuel-Cell Vehicles: "Mobile Electricity" Technologies, Early California Household Markets, and Innovation Management  

E-Print Network [OSTI]

2002. EPRI, "Advanced Batteries for Electric-Drive Vehicles:12 2.2.2.1 PHEV uncertainties: Batteries andwith big propulsion batteries. However, recent activities (

Williams, Brett D

2010-01-01T23:59:59.000Z

390

Vehicle Research Laboratory - FEERC  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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,

391

High-frequency equivalent model of AC motor for electric vehicle drive system  

Science Journals Connector (OSTI)

The application of the motor drive system in electric and hybrid-electric vehicles can lead to a significant increase in electromagnetic compatibility. The AC motor as an important part of motor drive system must be considered. In this paper, a high frequency modelling method of the AC motor is presented. The modelling method consists of deriving the motor model parameters from mathematical resolution of the electrical circuit equations and observation of the variations of the motor impedance with the frequency. All parameters of the proposed models are obtained by differential mode (DM) and common mode (CM) impedance measurement in the frequency domain. The model is verified by impedance measurement of a synchronous motor. The method proposed can be used to obtain a high-frequency equivalent circuit of an AC motor and predict conducted electromagnetic interference in a motor drive system.

Yongming Yang; Hemeng Peng; Quandi Wang

2013-01-01T23:59:59.000Z

392

Conceptual design of the bimodal nuclear power and propulsion system based on the ‘‘TOPAZ?2’’ type thermionic reactor?converter with the modernized single?cell thermionic fuel elements  

Science Journals Connector (OSTI)

The paper presents characteristics and conceptual design of the bimodal space thermionic system with the single?cell thermionic fuel elements intended for operation in two modes: steady?state power mode wherein the electric power is generated required for supply of the spaceborne systems at a level of 20 kWe and forced power and propulsion mode. The paper contains results of the design studies performed by the Small Business ‘‘NP Energotech’’ under the Agreement with Rockwell International/Rocketdyne Division and according to the Rocketdyne Division provided Design Requirements. Involved in the work was the team of specialists of RRC ‘‘Kurchatov Institute’’ CDBMB and Research Institute of SPA ‘‘Luch’’.

Nikolai N. Ponomarev?Stepnoi; Veniamin A. Usov; Yuri V. Nikolaev; Aleksander S. Gontar; Boris G. Oglobin; Aleksei N. Luppov; Aleksander V. Klimov; Yevgeny D. Avdoshyn

1995-01-01T23:59:59.000Z

393

LNG Vehicle High-Pressure Fuel System and ''Cold Energy'' Utilization  

SciTech Connect (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 condensed by rejecting h eat to the LNG. Power is extracted in a full-admission blowdown process, and part of this power is applied to pump the ethylene liquid to the boiler pressure. Tests demonstrated a net power output of 1.1. hp at 1.9 Lbm/min of LNG flow, which is adequate to isentropically pump the LNG to approximately 3,400 psi..

powers,Charles A.; Derbidge, T. Craig

2001-03-27T23:59:59.000Z

394

Backscatter x-ray development for space vehicle thermal protection systems  

SciTech Connect (OSTI)

The Backscatter X-Ray (BSX) imaging technique is used for various single sided inspection purposes. Previously developed BSX techniques for spray-on-foam insulation (SOFI) have been used for detecting defects in Space Shuttle External Tank foam insulation. The developed BSX hardware and techniques are currently being enhanced to advance Non-Destructive Evaluation (NDE) methods for future space vehicle applications. Various Thermal Protection System (TPS) materials were inspected using the enhanced BSX imaging techniques, investigating the capability of the method to detect voids and other discontinuities at various locations within each material. Calibration standards were developed for the TPS materials in order to characterize and develop enhanced BSX inspection capabilities. The ability of the BSX technique to detect both manufactured and natural defects was also studied and compared to through-transmission x-ray techniques. The energy of the x-ray, source to object distance, angle of x-ray, focal spot size and x-ray detector configurations were parameters playing a significant role in the sensitivity of the BSX technique to image various materials and defects. The image processing of the results also showed significant increase in the sensitivity of the technique. The experimental results showed BSX to be a viable inspection technique for space vehicle TPS systems.

Bartha, Bence B.; Hope, Dale; Vona, Paul; Born, Martin; Corak, Tony [USA NDE, United Space Alliance, Cape Canaveral, FL 32920 (United States)

2011-06-23T23:59:59.000Z

395

VEHICLE SPECIFICATIONS  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

VEHICLE SPECIFICATIONS 1 Vehicle Features Base Vehicle: 2011 Chevrolet Volt VIN: 1G1RD6E48BUI00815 Class: Compact Seatbelt Positions: 4 Type 2 : Multi-Mode PHEV (EV, Series, and Power-split) Motor Type: 12-pole permanent magnet AC synchronous Max. Power/Torque: 111 kW/370 Nm Max. Motor Speed: 9500 rpm Cooling: Active - Liquid cooled Generator Type: 16-pole permanent magnet AC synchronous Max. Power/Torque: 55 kW/200 Nm Max. Generator Speed: 6000 rpm Cooling: Active - Liquid cooled Battery Manufacturer: LG Chem Type: Lithium-ion Cathode/Anode Material: LiMn 2 O 4 /Hard Carbon Number of Cells: 288 Cell Config.: 3 parallel, 96 series Nominal Cell Voltage: 3.7 V Nominal System Voltage: 355.2 V Rated Pack Capacity: 45 Ah Rated Pack Energy: 16 kWh Weight of Pack: 435 lb

396

An Adaptive Dissemination Mechanism for Inter-Vehicle Communication-Based Decentralized Traffic Information Systems  

E-Print Network [OSTI]

even at a low penetration rate. Index Terms—Broadcast,Let p be the penetration rate of vehicles equipped withIVC-equipped vehicle penetration rate can achieve more than

Barth, M; Xu, H

2006-01-01T23:59:59.000Z

397

Hybrid and Plug-In Electric Vehicles (Brochure), Vehicle Technologies Program (VTP)  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (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

398

SYSTEM IDENTIFICATION FOR PRECISION CONTROL OF A WINGSAILED GPS-GUIDED CATAMARAN  

E-Print Network [OSTI]

, whose aim is the design, development, and experimental testing of an autonomous wind-propelled marine precision of a wind-propelled marine vehicle from typical commercial autopilot accuracy of 100 meters. The project involves substantial innovations in three areas: wind-propulsion system, overall system

Stanford University

399

GREET Development and Applications for Life-Cycle Analysis of Vehicle/Fuel Systems  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

400

Advanced Combustion Concepts- Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

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

The ExoClean Filter System for Stop and Go Vehicles  

Broader source: Energy.gov (indexed) [DOE]

whatever the driving conditions - Robustness and Durability - Vehicle integrations: cost, maintenance, volume... - Cost OEMRetrofit equipments - Operation costs , maintenance...

402

Advanced Combustion Concepts- Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles  

Broader source: Energy.gov [DOE]

2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

403

Advanced Combustion Concepts- Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

404

Powertrain & Vehicle Research Centre  

E-Print Network [OSTI]

Simulation Basic Engine Test Vehicle Test Cost & Complexity Towards Final Product Lean Powertrain Development Viewing Trade-Offs and Finding Optima Realism Advanced Engine Test Vehicle Test Rolling Road Powertrain powertrain development tasks to reduce costs and time to market The vehicle powertrain is the system

Burton, Geoffrey R.

405

Fluidic electrodynamics: Approach to electromagnetic propulsion  

SciTech Connect (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

406

Interplanetary space transport using inertial fusion propulsion  

SciTech Connect (OSTI)

In this paper, we indicate how the great advantages that ICF offers for interplanetary propulsion can be accomplished with the VISTA spacecraft concept. The performance of VISTA is expected to surpass that from other realistic technologies for Mars missions if the energy gain achievable for ICF targets is above several hundred. Based on the good performance expected from the U. S. National Ignition Facility (NIF), the requirements for VISTA should be well within the realm of possibility if creative target concepts such as the fast ignitor can be developed. We also indicate that a 6000-ton VISTA can visit any planet in the solar system and return to Earth in about 7 years or less without any significant physiological hazards to astronauts. In concept, VISTA provides such short-duration missions, especially to Mars, that the hazards from cosmic radiation and zero gravity can be reduced to insignificant levels. VISTA therefore represents a significant step forward for space-propulsion concepts.

Orth, C.D.

1998-04-20T23:59:59.000Z

407

‘‘Fast Track’’ nuclear thermal propulsion concept  

Science Journals Connector (OSTI)

The objective of the Space Exploration Initiative (‘‘America at the Threshold... ’’ 1991) is the exploration of Mars by man in the second decade of the 21st century. The NASA ‘‘Fast Track’’ approach (NASA?LeRC Presentation 1992) could accelerate the manned exploration of Mars to 2007. NERVA?derived nuclear propulsion represents a viable near?term technology approach to accomplish the accelerated schedule. Key milestones in the progression to the manned Mars mission are (1) demonstration of TRL?6 for the man?rateable system by 1999 (2) a robotic lunar mission by 2000 (3) the first cargo mission to Mars by 2005 and (4) the piloted Mars mission in 2007. The Rocketdyne?Westinghouse concept for nuclear thermal propulsion to achieve these milestones combines the nuclear reactor technology of the Rover/NERVA programs and the state?of?the?art hardware designs from hydrogen?fueled rocket engine successes like the Space Shuttle Main Engine (SSME).

Richard A. Johnson; Herbert R. Zweig; Martin H. Cooper; Jack Wett Jr.

1993-01-01T23:59:59.000Z

408

Fast Track'' nuclear thermal propulsion concept  

SciTech Connect (OSTI)

The objective of the Space Exploration Initiative ( America at the Threshold...,'' 1991) is the exploration of Mars by man in the second decade of the 21st century. The NASA Fast Track'' approach (NASA-LeRC Presentation, 1992) could accelerate the manned exploration of Mars to 2007. NERVA-derived nuclear propulsion represents a viable near-term technology approach to accomplish the accelerated schedule. Key milestones in the progression to the manned Mars mission are (1) demonstration of TRL-6 for the man-rateable system by 1999, (2) a robotic lunar mission by 2000, (3) the first cargo mission to Mars by 2005, and (4) the piloted Mars mission in 2007. The Rocketdyne-Westinghouse concept for nuclear thermal propulsion to achieve these milestones combines the nuclear reactor technology of the Rover/NERVA programs and the state-of-the-art hardware designs from hydrogen-fueled rocket engine successes like the Space Shuttle Main Engine (SSME).

Johnson, R.A.; Zweig, H.R. (Rocketdyne Division, Rockwell International Corporation, 6633 Canoga Avenue, P.O. Box 7922, Canoga Park, California 91309-7922 (United States)); Cooper, M.H.; Wett, J. Jr. (Westinghouse Electric Corporation, Post Office Box 158, Madison, Pennsylvania 15663 (United States))

1993-01-10T23:59:59.000Z

409

COGAS propulsion for LNG ships  

Science Journals Connector (OSTI)

Propulsion of liquefied natural gas (LNG) ships is undergoing significant change. The traditional steam plant is losing favor because of its low cycle efficiency. Medium-speed diesel-electric and slow-speed di...

Edwin G. Wiggins

2011-06-01T23:59:59.000Z

410

Strategic Technology JET PROPULSION LABORATORY  

E-Print Network [OSTI]

Strategic Technology Directions JET PROPULSION LABORATORY National Aeronautics and Space Administration 2 0 0 9 #12;© 2009 California Institute of Technology. Government sponsorship acknowledged. #12;Strategic Technology Directions 2009 offers a distillation of technologies, their links to space missions

Waliser, Duane E.

411

Designing cathodic protection systems for marine structures and vehicles. ASTM special technical publication 1370  

SciTech Connect (OSTI)

Cathodic protection is an important method of protecting structures and ships from the corrosive effects of seawater. Poor designs can be far more costly to implement than optimal designs, Improper design can cause overprotection, with resulting paint blistering and accelerated corrosion of some alloys, underprotection, with resultant structure corrosion, or stray current corrosion of nearby structures. The first ASTM symposium specifically aimed at cathodic protection in seawater was intended to compile all the criteria and philosophy for designing both sacrificial and impressed current cathodic protection systems for structures and vehicles in seawater. The papers which are included in this STP are significant in that they summarize the major seawater cathodic protection system design philosophies. Papers have been processed separately for inclusion on the database.

Hack, H.P. [ed.

1999-07-01T23:59:59.000Z

412

A Low-Cost Continuous Emissions Monitoring System for Mobile and Stationary Engine SCR/DPF Applications/Data-Logger for Vehicle Data Acquisition  

Broader source: Energy.gov [DOE]

This project describes a novel system of sensors that continuously monitor emissions in real time and a data logger to gather real-time data from a vehicle

413

Model-Free Learning-Based Online Management of Hybrid Electrical Energy Storage Systems in Electric Vehicles  

E-Print Network [OSTI]

Model-Free Learning-Based Online Management of Hybrid Electrical Energy Storage Systems in Electric@elpl.snu.ac.kr Abstract--To improve the cycle efficiency and peak output power density of energy storage systems in electric vehicles (EVs), supercapacitors have been proposed as auxiliary energy storage elements

Pedram, Massoud

414

Assessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning and refrigeration  

E-Print Network [OSTI]

Assessment of adsorber bed designs in waste-heat driven adsorption cooling systems for vehicle air conditioning Finned tube adsorber bed Specific cooling power Adsorber bed to adsorbent mass ratio a b s t r a c t Adsorber bed design strongly affects the performance of waste-heat driven adsorption cooling systems (ACS

Bahrami, Majid

415

24 Int. J. Vehicle Information and Communication Systems, Vol. 1, Nos. 1/2, 2005 Copyright 2005 Inderscience Enterprises Ltd.  

E-Print Network [OSTI]

a network analysis can guide integration. This analytic technique uses elements of graph theory to identify highlights potential dangers of failing to design integrated systems and the benefits of effective Inderscience Enterprises Ltd. Network analysis of information flows to integrate in-vehicle information systems

Lee, John D.

416

Modeling Electric Vehicle Benefits Connected to Smart Grids  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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.

417

SensorFlock: A Mobile System of Networked Micro-Air Vehicles Ahmad Bilal Hasan, Bill Pisano, Saroch Panichsakul, Pete Gray, Jyh Huang,  

E-Print Network [OSTI]

SensorFlock: A Mobile System of Networked Micro-Air Vehicles Ahmad Bilal Hasan, Bill Pisano, Saroch System of Networked Micro-Air Vehicles 1 Ahmad Bilal Hasan, 2 Bill Pisano, 1 Saroch Panichsakul,2 Pete of our MAV airplane, its avionics, semi- autonomous flight control software, launch system, flock control

Han, Richard Y.

418

Vehicle System Dynamics, Vol. 26, No.4, October 1996, pp.301-320. Traction/Braking Force Distribution for Optimal Longitudinal  

E-Print Network [OSTI]

as the desired level of vehicle yaw motion, and the control system was designed to follow the yaw motion commandVehicle System Dynamics, Vol. 26, No.4, October 1996, pp.301-320. Traction/Braking Force in the past twenty years through the use of electronic devices. Four-wheel-steering (4WS) systems have been

Peng, Huei

419

Smith Electric Vehicles: Advanced Vehicle Electrification + Transporta...  

Broader source: Energy.gov (indexed) [DOE]

Smith Electric Vehicles: Advanced Vehicle Electrification + Transportation Sector Electrification Smith Electric Vehicles: Advanced Vehicle Electrification + Transportation Sector...

420

Semiotics and Advanced Vehicles: What Hybrid Electric Vehicles (HEVs) Mean and Why it Matters to Consumers  

E-Print Network [OSTI]

press/105827/article.html Electric Drive TransportationAssociation (2005) Electric Drive Market and SalesGM's New Family of Electric-drive Propulsion Systems.

Heffner, Reid R.

2007-01-01T23:59:59.000Z

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.


421

Combined on-board hydride slurry storage and reactor system and process for hydrogen-powered vehicles and devices  

SciTech Connect (OSTI)

An on-board hydride storage system and process are described. The system includes a slurry storage system that includes a slurry reactor and a variable concentration slurry. In one preferred configuration, the storage system stores a slurry containing a hydride storage material in a carrier fluid at a first concentration of hydride solids. The slurry reactor receives the slurry containing a second concentration of the hydride storage material and releases hydrogen as a fuel to hydrogen-power devices and vehicles.

Brooks, Kriston P; Holladay, Jamelyn D; Simmons, Kevin L; Herling, Darrell R

2014-11-18T23:59:59.000Z

422

Lower-Energy Energy Storage System (LEESS) Evaluation in a Full-Hybrid Electric Vehicle (HEV) (Presentation)  

SciTech Connect (OSTI)

The cost of hybrid electric vehicles (HEVs) (e.g., Toyota Prius or Ford Fusion Hybrid) remains several thousand dollars higher than the cost of comparable conventional vehicles, which has limited HEV market penetration. The battery energy storage device is typically the component with the greatest contribution toward this cost increment, so significant cost reductions/performance improvements to the energy storage system (ESS) can improve the vehicle-level cost-benefit relationship, which would in turn lead to larger HEV market penetration and greater aggregate fuel savings. The National Renewable Energy Laboratory (NREL) collaborated with a United States Advanced Battery Consortium (USABC) Workgroup to analyze trade-offs between vehicle fuel economy and reducing the minimum energy requirement for power-assist HEVs. NREL's analysis showed that significant fuel savings could still be delivered from an ESS with much lower energy storage than previous targets, which prompted the United States Advanced Battery Consortium (USABC) to issue a new set of lower-energy ESS (LEESS) targets that could be satisfied by a variety of technologies, including high-power batteries or ultracapacitors. NREL has developed an HEV test platform for in-vehicle performance and fuel economy validation testing of the hybrid system using such LEESS devices. This presentation describes development of the vehicle test platform and in-vehicle evaluation results using a lithium-ion capacitor ESS-an asymmetric electrochemical energy storage device possessing one electrode with battery-type characteristics (lithiated graphite) and one with ultracapacitor-type characteristics (carbon). Further efforts include testing other ultracapacitor technologies in the HEV test platform.

Cosgrove, J.; Gonder, J.; Pesaran, A.

2013-11-01T23:59:59.000Z

423

On-line Decentralized Charging of Plug-In Electric Vehicles in Power Systems  

E-Print Network [OSTI]

Plug-in electric vehicles (PEV) are gaining increasing popularity in recent years, due to the growing societal awareness of reducing greenhouse gas (GHG) emissions and the dependence on foreign oil or petroleum. Large-scale implementation of PEVs in the power system currently faces many challenges. One particular concern is that the PEV charging can potentially cause significant impact on the existing power distribution system, due to the increase in peak load. As such, this work tries to mitigate the PEV charging impact by proposing a decentralized smart PEV charging algorithm to minimize the distribution system load variance, so that a 'flat' total load profile can be obtained. The charging algorithm is on-line, in that it controls the PEV charging processes in each time slot based entirely on the current power system state. Thus, compared to other forecast based smart charging approaches in the literature, the charging algorithm is robust against various uncertainties in the power system, such as random PE...

Li, Qiao; Negi, Rohit; Franchetti, Franz; Ilic, Marija D

2011-01-01T23:59:59.000Z

424

Conditions for the successful deployment of electric vehicles – A global energy system perspective  

Science Journals Connector (OSTI)

In the study, we analyse scenarios of car technology deployment and the global energy system using the Global Multi-regional MARKAL (GMM) cost optimisation model. We consider some of the conditions under which new drivetrain technologies, particularly battery electric vehicles (BEVs), may be more cost competitive under different hypothetical states of the world. We focus on the role of a potential niche market for cars with a limited travel range and how this may affect overall deployment of alternative drivetrain technologies and fuel choice. The results show that assuming a market of substantial size for such short-range cars leads to technologies such as \\{BEVs\\} being deployed more readily. In addition, we show the important role of other factors, such as stringent climate change policy and possible limitations to resource availability, in supporting alternative technologies. This analysis thus identifies potential technology targets for support by decision makers.

Martin Densing; Hal Turton; Georg Bäuml

2012-01-01T23:59:59.000Z

425

Vehicle highway automation.  

E-Print Network [OSTI]

??Vehicle Highway Automation has been studied for several years but a practical system has not been possible because of technology limitations. New advances in sensing… (more)

Challa, Dinesh Kumar

2009-01-01T23:59:59.000Z

426

Vehicle Technologies Office: Plug-in Electric Vehicle Basics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Basics Basics Plug-in electric vehicles (PEVs), which include both plug-in hybrid electric vehicles and all-electric vehicles, use electricity as either their primary fuel or to improve efficiency. Commonly Used PEV Terms All-electric vehicle (AEV) - A vehicle with plug-in capability; driving energy comes entirely from its battery. Plug-in hybrid electric vehicle (PHEV) - A vehicle with plug-in capability; driving energy can come from either its battery or a liquid fuel like gasoline, diesel, or biofuels. Plug-in electric vehicle (PEV) - Any vehicle with plug-in capability. This includes AEVs and PHEVs. Hybrid electric vehicle (HEV) - A vehicle that has an electric drive system and battery but does not have plug-in capability; driving energy comes only from liquid fuel.

427

Vehicle Technologies Office: Batteries  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Batteries to someone by Batteries to someone by E-mail Share Vehicle Technologies Office: Batteries on Facebook Tweet about Vehicle Technologies Office: Batteries on Twitter Bookmark Vehicle Technologies Office: Batteries on Google Bookmark Vehicle Technologies Office: Batteries on Delicious Rank Vehicle Technologies Office: Batteries on Digg Find More places to share Vehicle Technologies Office: Batteries on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Batteries Battery Systems Applied Battery Research Long-Term Exploratory Research Ultracapacitors Advanced Power Electronics & Electrical Machines Advanced Combustion Engines Fuels & Lubricants Materials Technologies Batteries battery/cell diagram Battery/Cell Diagram Batteries are important to our everyday lives and show up in various

428

Vehicle Technologies Office: Power Electronics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Power Electronics to Power Electronics to someone by E-mail Share Vehicle Technologies Office: Power Electronics on Facebook Tweet about Vehicle Technologies Office: Power Electronics on Twitter Bookmark Vehicle Technologies Office: Power Electronics on Google Bookmark Vehicle Technologies Office: Power Electronics on Delicious Rank Vehicle Technologies Office: Power Electronics on Digg Find More places to share Vehicle Technologies Office: Power Electronics on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Power Electronics Electrical Machines Thermal Control & System Integration Advanced Combustion Engines Fuels & Lubricants Materials Technologies Power Electronics The power electronics activity focuses on research and development (R&D)

429

Vehicle Technologies Office: Electrical Machines  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electrical Machines to Electrical Machines to someone by E-mail Share Vehicle Technologies Office: Electrical Machines on Facebook Tweet about Vehicle Technologies Office: Electrical Machines on Twitter Bookmark Vehicle Technologies Office: Electrical Machines on Google Bookmark Vehicle Technologies Office: Electrical Machines on Delicious Rank Vehicle Technologies Office: Electrical Machines on Digg Find More places to share Vehicle Technologies Office: Electrical Machines on AddThis.com... Just the Basics Hybrid & Vehicle Systems Energy Storage Advanced Power Electronics & Electrical Machines Power Electronics Electrical Machines Thermal Control & System Integration Advanced Combustion Engines Fuels & Lubricants Materials Technologies Electrical Machines Emphasis in the electrical machines activity is on advanced motor

430

E-Print Network 3.0 - aerial vehicle systems Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

December 11, 2005 Summary: highways, formations of unmanned aerial vehicles or arrays of micro-cantilevers for massively parallel data... , Spain CONTROL, ESTIMATION, AND...

431

E-Print Network 3.0 - air vehicle systems Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

vehicle database (Motochek, ... Source: Denver, University of - Fuel Efficiency Automobile Test Data Center Collection: Energy Storage, Conversion and Utilization 11 Liu, Z.,...

432

Vehicle Technologies Office Merit Review 2014: Interfacial Processes in EES Systems Advanced Diagnostics  

Broader source: Energy.gov [DOE]

Presentation given by Lawrence Berkeley National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about...

433

Thermoelectric Power Generation System with Loop Thermosyphon in Future High Efficiency Hybrid Vehicles  

Broader source: Energy.gov [DOE]

This project discusses preliminary experimental results to find how thermoelectrics can be applied ot future hybrid vehicles and the optimum design of such equipment using heat pipes

434

DOE Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles  

Broader source: Energy.gov [DOE]

This table lists the technical targets for onboard hydrogen storage for light-duty vehicles in the FCT Program’s Multiyear Research, Development and Demonstration Plan.

435

Vehicle Technologies Office Merit Review 2014: Particulate Emissions Control by Advanced Filtration Systems for GDI Engines  

Broader source: Energy.gov [DOE]

Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about particulate...

436

Vehicle Technologies Office Merit Review 2014: Electric PCM Assisted Thermal Heating System  

Broader source: Energy.gov [DOE]

Presentation given by Delphi Automotive at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about electric PCM assisted...

437

Vehicle Technologies Office Merit Review 2014: High Efficiency GDI Engine Research, with Emphasis on Ignition Systems  

Broader source: Energy.gov [DOE]

Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about high efficiency...

438

Proceedings of the International Electronics Packaging Education Conference (at the ECTC), May 30, 2006 Using Teardown Analysis as a Vehicle to Teach Electronic Systems Manufacturing Cost Modeling  

E-Print Network [OSTI]

, 2006 Using Teardown Analysis as a Vehicle to Teach Electronic Systems Manufacturing Cost Modeling Peter product teardowns and reverse engineering ideas has proven to be an effective vehicle for educating engineers involved in the design of electronic systems did not concern themselves with the cost

Sandborn, Peter

439

The design of safe automotive embedded systems -Some problems, solutions and open issues  

E-Print Network [OSTI]

to the systems which participate in the longitudinal propulsion of the vehicle, including engine, transmission of the decreasing cost of hardware components, their increasing reliability and performances and the emergence of embedded fieldbuses; on the other hand, software technology makes easier and less costly the introduction

Paris-Sud XI, Université de

440

Modelling and control of a symmetric flapping wing vehicle: an optimal control approach  

E-Print Network [OSTI]

This thesis presents a method for designing a flapping wing stroke for a flapping wing vehicle. A flapping wing vehicle is a vehicle such as a bird or an insect that uses its wings for propulsion instead of a conventional propeller or a jet engine...

Jackson, Justin Patrick

2009-05-15T23:59:59.000Z

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

State-of-Health Aware Optimal Control of Plug-in Electric Vehicles  

E-Print Network [OSTI]

), which utilize electric motors for propulsion, differ from fossil fuel powered vehiclesState-of-Health Aware Optimal Control of Plug-in Electric Vehicles Yanzhi Wang, Siyu Yue, USA {yanzhiwa, siyuyue, pedram}@usc.edu Abstract--Plug-in electric vehicles (PEVs) are key new energy

Pedram, Massoud

442

Elastic tail propulsion at low Reynolds number  

E-Print Network [OSTI]

A simple way to generate propulsion at low Reynolds number is to periodically oscillate a passive flexible filament. Here we present a macroscopic experimental investigation of such a propulsive mechanism. A robotic swimmer ...

Yu, Tony S. (Tony Sheung)

2007-01-01T23:59:59.000Z

443

Special Session Title: Intelligent Vehicle Systems Special session objectives and topics  

E-Print Network [OSTI]

efficiency and autonomy. This special session seeks to present and highlight the latest developments · Vehicle energy management and optimization in hybrid vehicles Organizers: Session Chair: Yi Lu Murphey the University of Alexandria, Egypt, the M.S. and the Ph.D. degrees in 1984 and 1994 respectively from

Lu, Yi

444

Human factors in the design and assessment of in-vehicle information systems  

Science Journals Connector (OSTI)

The driver of a modern vehicle can now receive information about the state of the vehicle and its components, traffic conditions, the environment in which the vehicle is being used, and information unrelated to the vehicle but of relevance to the driver. The application of new technology, producing such a wealth of information, poses as many new queries for the designer and electronics engineer as it has provided design opportunities. The ergonomist works with designers, engineers and product planners to present in-vehicle information to the user in a form which is compatible with the user's requirements and capabilities. The involvement of the user in product development and assessment is a vital part of the process. Examples are cited in the paper of the ways in which design and assessment exercises are conducted.

M.D. Galer

1986-01-01T23:59:59.000Z

445

Vehicle Technologies Office: Deployment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Deployment Deployment Site Map Printable Version Share this resource Send a link to Vehicle Technologies Office: Deployment to someone by E-mail Share Vehicle Technologies Office: Deployment on Facebook Tweet about Vehicle Technologies Office: Deployment on Twitter Bookmark Vehicle Technologies Office: Deployment on Google Bookmark Vehicle Technologies Office: Deployment on Delicious Rank Vehicle Technologies Office: Deployment on Digg Find More places to share Vehicle Technologies Office: Deployment on AddThis.com... Energy Policy Act (EPAct) Clean Cities Educational Activities Deployment Our nation's energy security depends on the efficiency of our transportation system and on which fuels we use. Transportation in the United States already consumes much more oil than we produce here at home

446

Numerical study on active wave devouring propulsion  

Science Journals Connector (OSTI)

The possibility of extracting energy from gravity waves for marine propulsion was numerically studied by a two-dimensional...

Liyanarachchi Waruna Arampath De Silva…

2012-09-01T23:59:59.000Z

447

Numerical assessment of liquid cooling system for power electronics in fuel cell electric vehicles  

Science Journals Connector (OSTI)

Abstract Electrical power from the fuel cells is converted and controlled by power electronics that are composed of control units, converters and switching devices. During the power management, the inevitable power losses induce heat generation in the power electronics. In this, effective design for the cooling system is essential in terms of safety, reliability, and durability. A liquid cooling system for the power electronics is applied to chill the electrical components below the thermal specifications. Nonetheless, the layout of cooling components is usually designed after the completion of the chassis and power electronics in the automotive applications, thus, only a little freedom is allowed to change the layout. Thus, it is significant and urgent to investigate the cooling performance before finalizing the layout design. In this paper, one dimensional and computerized fluid dynamics code is employed to simulate the performance of the cooling system at the early stage of conceptual design. Three different layouts of cooling systems are chosen to compare the ensuing systematic cooling performances. The liquid flow rates, pressure drops, and maximum temperatures are computed by the numerical simulations of the cooling system which comprises the cold plates, liquid pump, radiator, and plumbing network. It is demonstrated that for a fuel cell electric vehicle of 100 kW, the dual cooling loops with a specified array control the maximum temperatures below thermal specification by inducing the higher liquid flow rate of rate of 33.4 L/min through radiator than 20.0 L/min in a single loop. The proposed systematic numerical simulation provides significant information to determine the layout of the power electronics coupled with the cooling performance at the early stage of conceptual design.

Heesung Park

2014-01-01T23:59:59.000Z

448

American Institute of Aeronautics and Astronautics Electrolysis Propulsion for CubeSat-Scale Spacecraft  

E-Print Network [OSTI]

is becoming clear. A water-electrolysis propulsion system for 3U CubeSats is proposed that could fill the gapAmerican Institute of Aeronautics and Astronautics 1 Electrolysis Propulsion for Cube as electrolyte. With over 1 km/s of V from 1 kg of water as propellant, sample missions include compensating

Peck, Mason A.

449

Heat pipe cooled heat rejection subsystem modelling for nuclear electric propulsion. Final report  

SciTech Connect (OSTI)

NASA LeRC is currently developing a FORTRAN based computer model of a complete nuclear electric propulsion (NEP) vehicle that can be used for piloted and cargo missions to the Moon or Mars. Proposed designs feature either a Brayton or a K-Rankine power conversion cycle to drive a turbine coupled with rotary alternators. Both ion and magnetoplasmodynamic (MPD) thrusters will be considered in the model. In support of the NEP model, Rocketdyne is developing power conversion, heat rejection, and power management and distribution (PMAD) subroutines. The subroutines will be incorporated into the NEP vehicle model which will be written by NASA LeRC. The purpose is to document the heat pipe cooled heat rejection subsystem model and its supporting subroutines. The heat pipe cooled heat rejection subsystem model is designed to provide estimate of the mass and performance of the equipment used to reject heat from Brayton and Rankine cycle power conversion systems. The subroutine models the ductwork and heat pipe cooled manifold for a gas cooled Brayton; the heat sink heat exchanger, liquid loop piping, expansion compensator, pump and manifold for a liquid loop cooled Brayton; and a shear flow condenser for a K-Rankine system. In each case, the final heat rejection is made by way of a heat pipe radiator. The radiator is sized to reject the amount of heat necessary.

Moriarty, M.P.

1993-11-01T23:59:59.000Z

450

Infrastructure for thulium-170 isotope power systems for autonomous underwater vehicle fleets  

SciTech Connect (OSTI)

The radioisotope thulium-170 is a safe and environmentally benign heat source for providing the high endurance and energy densities needed by advanced power systems for autonomous underwater vehicles (AUV). Thulium Isotope Power (TIP) systems have an endurance of {approximately}3000 h, and gravimetric and volumetric energy densities of 3 {times} 10{sup 4} Wh/kg and 3 {times} 10{sup 8} Wh/m{sup 3}, respectively. These energy densities are more than 200 times higher than those currently provided by Ag-Zn battery technology. In order to capitalize on these performance levels with about one hundred AUVs in continuous use, it will be necessary to establish an infrastructure for isotope production and heat-source refurbishment. The infrastructure cost is not trivial, and studies are needed to determine its optimum configuration. The major component of the projected infrastructure is the nuclear reactor used to produce Tm- 170 by neutron absorption in Tm-169. The reactor design should ideally be optimized for TM-170 production. Using the byproduct waste'' heat beneficially would help defray the cost of isotope production. However, generating electric power with the reactor would compromise both the cost of electricity and the isotope production capacity. A coastal location for the reactor would be most convenient from end-use considerations, and the waste'' heat could be used to desalinate seawater in water-thirsty states. 13 refs., 6 figs., 2 tabs.

Walter, C.E.

1991-07-01T23:59:59.000Z

451

Advanced Turbine Technology Applications Project (ATTAP) and Hybrid Vehicle Turbine Engine Technology Support project (HVTE-TS): Final summary report  

SciTech Connect (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

452

Vehicle Technologies Office: 2006 U.S. Department of Energy Heavy Vehicle  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

U.S. Department of U.S. Department of Energy Heavy Vehicle Systems Review to someone by E-mail Share Vehicle Technologies Office: 2006 U.S. Department of Energy Heavy Vehicle Systems Review on Facebook Tweet about Vehicle Technologies Office: 2006 U.S. Department of Energy Heavy Vehicle Systems Review on Twitter Bookmark Vehicle Technologies Office: 2006 U.S. Department of Energy Heavy Vehicle Systems Review on Google Bookmark Vehicle Technologies Office: 2006 U.S. Department of Energy Heavy Vehicle Systems Review on Delicious Rank Vehicle Technologies Office: 2006 U.S. Department of Energy Heavy Vehicle Systems Review on Digg Find More places to share Vehicle Technologies Office: 2006 U.S. Department of Energy Heavy Vehicle Systems Review on AddThis.com... Publications Key Publications

453

Multi-vehicle Mobility Allowance Shuttle Transit (MAST) System - An Analytical Model to Select the Fleet Size and a Scheduling Heuristic  

E-Print Network [OSTI]

The mobility allowance shuttle transit (MAST) system is a hybrid transit system in which vehicles are allowed to deviate from a fixed route to serve flexible demand. A mixed integer programming (MIP) formulation for the static scheduling problem...

Lu, Wei

2012-10-19T23:59:59.000Z

454

Use of electromagnetic clutch water pumps in vehicle engine cooling systems to reduce fuel consumption  

Science Journals Connector (OSTI)

Abstract In general, when the internal combustion engine of a vehicle is started, its operationally connected cooling system provides excessive cooling, resulting in unnecessary energy consumption and excessive emission of exhaust gas. If the rotational speed of the engine is high, the excessive cooling causes the combustion efficiency to decrease. Therefore, better control of the operating temperature range of the engine through use of an active cooling system can achieve better fuel economy and reduction of exhaust gas emission. Effective control of the cooling system in accordance with the operating conditions of the engine can be realized by changing the mass flow rate of the coolant. In this study, we designed electromagnetic clutch water pumps that can control the coolant flow. We made two types of water pump: (1) a planetary gear (PG)-type water pump which can reduce the rotation speed of the water pump by 65%, compared with a pulley; and (2) an on/off-type water pump which can completely stop the rotation of the impeller. The performance evaluation of these pumps consisted of a warm-up test and the New European Driving Cycle (NEDC). Warm-up test results showed that the time required to achieve a temperature of approximately 80 °C with the PG water pump and the on/off water pump was improved by 7.3% and 24.7% respectively, compared with that of a conventional water pump. Based on the NEDC results, we determined that the fuel economy of the engine using the PG water pump and the on/off water pump was improved by 1.7% and 4.0% compared with the fuel economy when using the conventional water pump. The application of clutch water pumps is expected to contribute to the improvement of engine cooling system performance, because their effect in reducing the fuel consumption rate is similar to that of an electric water pump.

Yoon Hyuk Shin; Sung Chul Kim; Min Soo Kim

2013-01-01T23:59:59.000Z

455

Method of, and apparatus for, killing marine life in and about the cooling system of a marine vehicle  

SciTech Connect (OSTI)

This patent describes a method of killing marine life in the cooling system of a marine vehicle having a water-cooled internal combustion engine. It comprises: providing an enclosure about the inlet and outlet ports such that water circulated through the cooling system will be drawn from, and discharged back into, the enclosure; and operating the engine so as to cause the temperature of the water within the enclosure and the cooling system to increase to a predetermined minimum temperature; thereby to cause marine life in the enclosure and cooling system to be killed by the increased temperature of water within the cooling system and enclosure.

Brockhurst, J.V.

1992-09-22T23:59:59.000Z

456

Maglev vehicles and superconductor technology: Integration of high-speed ground transportation into the air travel system  

SciTech Connect (OSTI)

This study was undertaken to (1) evaluate the potential contribution of high-temperature superconductors (HTSCs) to the technical and economic feasibility of magnetically levitated (maglev) vehicles, (2) determine the status of maglev transportation research in the United States and abroad, (3) identify the likelihood of a significant transportation market for high-speed maglev vehicles, and (4) provide a preliminary assessment of the potential energy and economic benefits of maglev systems. HTSCs should be considered as an enhancing, rather than an enabling, development for maglev transportation because they should improve reliability and reduce energy and maintenance costs. Superconducting maglev transportation technologies were developed in the United States in the late 1960s and early 1970s. Federal support was withdrawn in 1975, but major maglev transportation programs were continued in Japan and West Germany, where full-scale prototypes now carry passengers at speeds of 250 mi/h in demonstration runs. Maglev systems are generally viewed as very-high-speed train systems, but this study shows that the potential market for maglev technology as a train system, e.g., from one downtown to another, is limited. Rather, aircraft and maglev vehicles should be seen as complementing rather than competing transportation systems. If maglev systems were integrated into major hub airport operations, they could become economical in many relatively high-density US corridors. Air traffic congestion and associated noise and pollutant emissions around airports would also be reduced. 68 refs., 26 figs., 16 tabs.

Johnson, L.R.; Rote, D.M.; Hull, J.R.; Coffey, H.T.; Daley, J.G.; Giese, R.F.

1989-04-01T23:59:59.000Z

457

The Progress of Marine Propulsion  

Science Journals Connector (OSTI)

... ships. Inventions, improvements, innovations have followed in rapid succession, and the history of marine engineering presents an endless and bewildering variety of engines and boilers which have been adopted ... so many rival methods of driving ships as they have to-day, each method of propulsion making by its performance or promise some claim to consideration. Modern ...

EDGAR C. SMITH

1929-03-09T23:59:59.000Z

458

Numerical Investigation of Laser Propulsion for Transport in Water Environment  

SciTech Connect (OSTI)

Problems that cumber the development of the laser propulsion in atmosphere and vacuum are discussed. Based on the theory of interaction between high-intensity laser and materials, as air and water, it is proved that transport in water environment can be impulsed by laser. The process of laser propulsion in water is investigated theoretically and numerically. It shows that not only the laser induced plasma shock wave, but also the laser induced bubble oscillation shock waves and the pressure induced by the collapsing bubble can be used. Many experimental results show that the theory and the numerical results are valid. The numerical result of the contribution of every propulsion source is given in percentage. And the maximum momentum coupling coefficient Cm is given. Laser propulsion in water environment can be applied in many fields. For example, it can provide highly controllable forces of the order of micro-Newton ({mu}N) in microsystems, such as the MEMS (Micro-electromechanical Systems). It can be used as minimally invasive surgery tools of high temporal and spatial resolution. It can be used as the propulsion source in marine survey and exploitation.

Han Bing; Li Beibei; Zhang Hongchao; Chen Jun; Shen Zhonghua; Lu Jian; Ni Xiaowu [Department of Science, Nanjing University of Science and Technology, Nanjing 210094 (China)

2010-10-08T23:59:59.000Z

459

NREL: Vehicles and Fuels Research - Publications  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Publications Publications NREL researchers document their findings in technical reports, conference papers, journal articles, and fact sheets. Visit the following online resources to find publications about alternative and advanced transportation technologies and systems. NREL Publications Database This database features a wide variety of publications produced by NREL from 1977 to the present. Search the database or find publications according to these popular key words: Advanced vehicles and systems | Alternative fuels | Batteries | Electric vehicles | Energy storage | Fuel cell vehicles | Hybrid electric vehicles | Plug-in electric vehicles | Vehicle analysis | Vehicle modeling | Vehicle emissions Selected Publications Read selected publications related to our vehicles and fuels projects:

460

Modelling and simulation of the electronic differential system for an electric vehicle with two-motor-wheel drive  

Science Journals Connector (OSTI)

In-wheel-motor drive electric vehicle (EV) is an innovative configuration, in which each wheel is driven individually by an electric motor. It is possible to use an electronic differential (ED) instead of the heavy mechanical differential because of the fast response time of the motor. A new control approach for ED of a two in-wheel-motor drive EV is proposed based on the fuzzy logic control. The fuzzy logic method employs to estimate the slip rate of each wheel considering the complex and non-linear of the system. Consequently, the ED system distributes torque and power to each motor according to requirements. The effectiveness of the control method is validated in the Matlab/Simulink environment. By simulation results, it is demonstrated that the present ED control system is effective on keeping the slip rate within the optimal range and ensuring the stability of the vehicle either on a straight or curvilinear line.

Yan-e Zhao; Jianwu Zhang

2009-01-01T23:59:59.000Z

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.


461

Design of an Autonomous Underwater Vehicle (AUV) charging system for underway, underwater recharging  

E-Print Network [OSTI]

Modern robotics have enabled the rapid proliferation of Autonomous Underwater Vehicles (AUVs) throughout the marine environment. As autonomy algorithms increase in robustness, complexity, and reliability, so too does the ...

Ewachiw, Mark Alexander, Jr

2014-01-01T23:59:59.000Z

462

A constant-mass fuel delivery system for use in underwater autonomous vehicles  

E-Print Network [OSTI]

This thesis describes the design and assembly of two constant-mass fuel tanks to be used in autonomous underwater vehicles (AUVs). The fuel tanks are part of a power supply designed to increase AUV endurance without limiting ...

Saxton-Fox, Theresa Ann

2012-01-01T23:59:59.000Z

463

Evaluation of 2010 Urea-SCR Technology for Hybrid Vehicles using PSAT System Simulations  

Broader source: Energy.gov [DOE]

Results of simulations of LDD hybrid vehicle under hybrid drive cycle conditions in PSAT show the potential impact of urea-SCR NOx controls on HEVs and PHEVs powered by lean-burn engines.

464

Vehicle Technologies Office Merit Review 2014: Stand-Alone Battery Thermal Management System  

Broader source: Energy.gov [DOE]

Presentation given by DENSO International America, Inc. at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about stand-alone...

465

Optimization of Fuel Cell System Operating Conditions for Fuel Cell Vehicles  

E-Print Network [OSTI]

a Direct-Hydrogen, Load-Following Fuel 13. S. Gelfi, A.G.versus a Direct-Hydrogen Load-Following Fuel Cell te d M 22.vehicle model of a load-following direct hydrogen fuel cell

Zhao, Hengbing; Burke, Andy

2008-01-01T23:59:59.000Z

466

Cyber-Physical Systems for Optimal Energy Management Scheme of Autonomous Electric Vehicle  

Science Journals Connector (OSTI)

......autonomous electric vehicle (AEV) in smart grid. We first give a brief overview...communication technologies for CPS, smart grid, AEV and its path planning, energy-efficient...sensor networks (WSNs) navigation, smart grid communication architecture for EMF......

Jiafu Wan; Hehua Yan; Di Li; Keliang Zhou; Lu Zeng

2013-08-01T23:59:59.000Z

467

Vehicle Technologies Office Merit Review 2014: INL Testing of Wireless Charging Systems  

Broader source: Energy.gov [DOE]

Presentation given by Idaho National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about INL testing of...

468

Implementation of mechanical, electrical, and feedback control systems in unmanned aerial vehicles  

E-Print Network [OSTI]

The thesis objective was to design an unmanned aerial vehicle that was capable of stable, autonomous flight. A fixed wing aircraft was chosen to simplify some of the flight characteristics and avoid some of the challenges ...

Tan, Derrick (Derrick Chi-Ho)

2006-01-01T23:59:59.000Z

469

FY2001 Progress Report for Automotive Propulsion Materials  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (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

470

Life cycle considerations in propulsion alternatives for fast vessels  

SciTech Connect (OSTI)

Fast vessels are being built and operated for a large range of passenger-carrying applications. Fast cargo-carrying vessels are being considered in a variety of sizes as well. A major decision in design and construction of these vessels is the propulsion system; this decision has major impacts on the operation economics as well as the operational capabilities of the vessels. Factors involved in consideration of propulsion alternatives for fast vessels are examined, with emphasis upon the total life cycle operating implications of these factors. A methodology for considering the factors is suggested, and an example is presented with results of the consideration tradeoffs.

Luck, D.L. [General Electric Co., Evendale, OH (United States). GE Marine and Industrial Engines

1996-07-01T23:59:59.000Z

471

Advanced Propulsion Technology Strategy  

Broader source: Energy.gov (indexed) [DOE]

Unit Charge Port CHARGING AND INFRASTRUCTURE ELECTRIC MOTORS POWER CONTROL BATTERIES FUEL CELLS POWERTRAIN ELECTRIFICATION GLOBAL BATTERY SYSTEMS LAB BROWNSTOWN TOWNSHIP...

472

Reduction of Doppler effect for the needs of wayside condition monitoring system of railway vehicles  

Science Journals Connector (OSTI)

Technology of acoustic condition monitoring of vehicles in motion is based on the assumption that diagnostically relevant information is stored in the acoustic signal generated by a passing vehicle. Analyzing the possibilities of increasing the effectiveness of condition monitoring of a passing vehicle with stationary microphones, it should be noted that the acoustic signal recorded in these conditions is disturbed with the disturbance resulting from the Doppler effect. Reduction of signal's frequential structure disturbance resulting from the Doppler effect allows efficient analysis of changes in frequential structure of recorded signals and as a result extraction of relevant diagnostic information related with technical condition of running gear of vehicle. This article presents a method for removal of signal's frequential structure disturbances related with relative move of vehicles and stationary monitoring station. For elimination of the frequential non-stationary of signals disturbance-oriented dynamic signal resampling method was used. The paper provides a test of two methods for defining the time course of local disturbance of signal's frequential structure: the method based on the Hilbert transform and the method of analytical description of signal's disturbance based on the knowledge of a phenomenon that causes frequential non-stationarity of signals. As an example, the results of the processing and analysis of acoustic signals recorded by wayside measuring station, during the passage of WM-15A railway vehicle on an experimental track of Polish Railway Institute, are presented.

Jacek Dyba?a; Stanis?aw Radkowski

2013-01-01T23:59:59.000Z

473

CHAPTER 14 - Future of Solid Rocket Propulsion  

Science Journals Connector (OSTI)

Publisher Summary The technological progress of propulsion systems using solid propellants has so far been possible because of the expression of new requirements and the emergence of diversified applications. The search for optimal propellant performance—specific impulse Is and volumetric specific impulse Is ?—continues to be the most important research mission, coupled with other expected technological progress. For composite propellants, revolutionary progress has been achieved only through extensive modifications of the active parts of the manufacturing process. So far, the difficulties facing this development do not involve basic issues such as mechanical components; rather they involve variety of issues ranging from the amount of precision required in the continuous feeding of raw materials and the high level of sensitivity of the propellants to minute variations in the amounts of crosslinking agent or catalyst. The technology of the ramjets and ramrockets is relevent to numerous applications to missiles. The range of systems from several hundred kilometers to several thousand kilometers is a possibility that is being investigated. The development of this type of propulsion is going to take several directions. Beyond applications to high-performance military missiles, the emphasis is placed on costs, particularly for mass industrial productions and very large missiles. This emphasis is not only on the production costs but also on the development costs, implying significant changes in the methods of development.

ALAIN DAVENAS

1993-01-01T23:59:59.000Z

474

Supervisory Power Management Control Algorithms for Hybrid Electric Vehicles: A Survey  

SciTech Connect (OSTI)

The growing necessity for environmentally benign hybrid propulsion systems has led to the development of advanced power management control algorithms to maximize fuel economy and minimize pollutant emissions. This paper surveys the control algorithms for hybrid electric vehicles (HEVs) and plug-in HEVs (PHEVs) that have been reported in the literature to date. The exposition ranges from parallel, series, and power split HEVs and PHEVs and includes a classification of the algorithms in terms of their implementation and the chronological order of their appearance. Remaining challenges and potential future research directions are also discussed.

Malikopoulos, Andreas [ORNL

2014-01-01T23:59:59.000Z

475

Electric and Hybrid Vehicles Program. Sixteenth annual report to Congress for fiscal year 1992  

SciTech Connect (OSTI)

This report describes the progress achieved in developing electric and hybrid vehicle technologies, beginning with highlights of recent accomplishments in FY 1992. Detailed descriptions are provided of program activities during FY 1992 in the areas of battery, fuel cell, and propulsion system development, and testing and evaluation of new technology in fleet site operations and in laboratories. This Annual Report also contains a status report on incentives and use of foreign components, as well as a list of publications resulting from the DOE program.

Not Available

1993-08-01T23:59:59.000Z

476

Vehicle Technologies Office: 2011 Propulsion Materials R&D Annual...  

Energy Savers [EERE]

materials technologies that are critical in improving the efficiency of advanced engines by providing enabling materials support for combustion, hybrid, and power electronics...

477

DOE Vehicle Technologies Program 2009 Merit Review Report - Propulsion...  

Broader source: Energy.gov (indexed) [DOE]

for n-type (In,R)Co 4 Sb 12 Compositions, Introduce Single & Multiple "Rattlers" (In, Rare Earth) in Co 0.6 Rh 0.4 SbO 3 , Characterize TE Properties & Validate with Third Party...

478

Vehicle Technologies Office: 2010 Propulsion Materials R&D Annual...  

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

efficiency of advanced engines by providing enabling materials support for combustion, hybrid, and power electronics development. 2010propulsionmaterials.pdf More Documents &...

479

Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle...  

Energy Savers [EERE]

Maximizing Alternative Fuel Vehicle Efficiency Vehicle Technologies Office: Maximizing Alternative Fuel Vehicle Efficiency Besides their energy security and environmental benefits,...

480

Smith Electric Vehicles: Advanced Vehicle Electrification + Transporta...  

Energy Savers [EERE]

Confidential, 4222013 2013 DOE VEHICLE TECHNOLOGIES PROGRAM REVIEW PRESENTATION Smith Electric Vehicles: Advanced Vehicle Electrification + Transportation Sector Electrification...

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.


481

NREL: Vehicles and Fuels Research - Electric Vehicle Grid Integration  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electric Vehicle Grid Integration Project Electric Vehicle Grid Integration Project Plug-in electric vehicle charging at NREL. PEV charging in the VTIF. Photo by Dennis Schroeder, NREL/PIX 19758 The Electric Vehicle Grid Integration Project supports the development and implementation of electrified transportation systems, particularly those that integrate renewable-based vehicle charging systems. Plug-in electric vehicles (PEVs)-including all-electric vehicles and plug-in hybrid electric vehicles (PHEVs)-provide a new opportunity to reduce oil consumption by drawing on power from the electric grid. To maximize the benefits of PEVs, the emerging PEV infrastructure must provide access to clean electricity generated from renewable sources, satisfy driver expectations, and ensure safety. Value creation from systems

482

A non-contact energy transferring system for an electric vehicle-charging system based on recycled products  

Science Journals Connector (OSTI)

A non-contact automatic charging system for electric vehicle application is presented. The principle is the same as that of the transformer where the primary and the secondary circuits are separable but coupled with each other without using the hand coupler. In this paper we present a possibility of removing the core of the secondary coil on the body for reducing the weight of the car. In our experiments the primary core which is placed on the earth floor is made of Mn–Zn ferrite with square shape as 1 m × 1 m × 10 mm for a large cross-sectional area. The steel floor of the car assists to pass the magnetic flux. An efficiency rate over 90% with the test device of 2 kW is obtained without the conventional secondary core. The leakage inductance is well compensated by a resonance capacitor inserted in the secondary coil. In this experiment the distance between the primary and the secondary coil is 100 mm and the switching frequency is 100 kHz . In addition we developed a pavement method for the system. The method utilizes plates made from the waste of expanded polystyrene and rubber mats made from used tire. The plates are set up on the rubber mats and these mats are arranged over the non-contact charging system. The pavements can be replaced easily when the system is exchanged. Therefore this pavement method is not only practical for the non-contact charging system but is also useful for recycling of resources and reduction of waste matters.

Y. Matsuda; H. Sakamoto; H. Shibuya; S. Murata

2006-01-01T23:59:59.000Z

483

Radiofrequency in propulsion application to commercial satellites  

SciTech Connect (OSTI)

Application of the RITA ion propulsion system for the Eureca and SAT-2 missions is considered. In the RITA-10 system, xenon is stored at 50-60 bar in a pressure tank, a pressure reduction device reduces the variable high pressure to a constant pressure of 1.5 bar, and a single unit controls the mass flow independently for both the thruster and the neutralizer. The present thruster does not employ isolators between the discharge chamber and the structure, and it achieves thrust level variation by variation of the RF power at constant exhaust velocity. The RF ionizaton system does not require constant generation of electrons during discharge operation. For SAT-2, the requirements are for a thrust level of 15 mN + or - 5 percent and a lifetime of 7000 hours per thruster.

Bassner, H.F.; Berg, H.P.; Kukies, R.

1989-01-01T23:59:59.000Z

484

> 070131-073Vehicle  

E-Print Network [OSTI]

-how developed with the design ofthe ROAZ ASV [3] [4]. Power is provided by electric batteries. The computer> 070131-073Vehicle for Network Centric Operations H. Ferreira-The design and development of the Swordfish Autonomous Surface Vehicle (ASV) system is discussed. Swordfish

Marques, Eduardo R. B.

485

Vehicle Technologies Office Merit Review 2014: Technology and System Level Demonstration of Highly Efficient and Clean, Diesel Powered Class 8 Trucks  

Broader source: Energy.gov [DOE]

Presentation given by Peterbilt at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about the technology and system level...

486

Vehicle Technologies Office Merit Review 2014: Penn State DOE Graduate GATE Program for In-Vehicle, High-Power Energy Storage Systems  

Broader source: Energy.gov [DOE]

Presentation given by Pennsylvania State University at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Penn State DOE...

487

Prediction of thermal behaviors of an air-cooled lithium-ion battery system for hybrid electric vehicles  

Science Journals Connector (OSTI)

Abstract Thermal management has been one of the major issues in developing a lithium-ion (Li-ion) hybrid electric vehicle (HEV) battery system since the Li-ion battery is vulnerable to excessive heat load under abnormal or severe operational conditions. In this work, in order to design a suitable thermal management system, a simple modeling methodology describing thermal behavior of an air-cooled Li-ion battery system was proposed from vehicle components designer's point of view. A proposed mathematical model was constructed based on the battery's electrical and mechanical properties. Also, validation test results for the Li-ion battery system were presented. A pulse current duty and an adjusted US06 current cycle for a two-mode HEV system were used to validate the accuracy of the model prediction. Results showed that the present model can give good estimations for simulating convective heat transfer cooling during battery operation. The developed thermal model is useful in structuring the flow system and determining the appropriate cooling capacity for a specified design prerequisite of the battery system.

Yong Seok Choi; Dal Mo Kang

2014-01-01T23:59:59.000Z

488

In-Use Performance Comparison of Hybrid Electric, CNG, and Diesel...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Maintenance Costs - The propulsion- related vehicle systems include the exhaust; fuel; engine; electric propulsion; nonlighting electrical (general electrical, charging, cranking,...

489

Design and Implementation of a Hybrid Energy Supply System for Railway Vehicles  

E-Print Network [OSTI]

. Pottharst, N. Fröhleke, J. Böcker Institute for Power Electronics and Electrical Drives K. Witting, M technologies make these devices effectively to be employed as energy storage element in electric vehicles (see [11] for detailed information), is the power flow control between the DC-link of the electric grid

Elsässer, Robert

490

Cyber-Physical Systems for Optimal Energy Management Scheme of Autonomous Electric Vehicle  

Science Journals Connector (OSTI)

......consumption status and demand from AEV and charging...vehicle; energy management; event-based...the optimal energy management scheme for AEV with...of CPS for energy management framework (EMF...the consumption side to collect and analyze...consumption status and demand, and then make......

Jiafu Wan; Hehua Yan; Di Li; Keliang Zhou; Lu Zeng

2013-08-01T23:59:59.000Z

491

ME 379M Vehicle System Dynamics and Controls ABET EC2000 syllabus  

E-Print Network [OSTI]

excitation. The influence of vehicle-environment interaction will be studied, and static and dynamic, and processes. b 4. Ability to set up and conduct experiments, and to present the results in a professional in written, oral and graphical forms. d 7. Ability to work in teams and apply interpersonal skills

Ben-Yakar, Adela

492

Centenary of Practical Marine Screw Propulsion  

Science Journals Connector (OSTI)

... To mark the centenary of practical marine screw ... screw propulsion, a special exhibit was opened at the Science Museum, South Kensington, on February ...

1937-02-13T23:59:59.000Z

493

Fabrication and characterization of sintered porous glass emitters for electrospray propulsion  

E-Print Network [OSTI]

Ionic electrospray thrusters are promising candidates for CubeSat propulsion systems in space, due to their low power requirement and small form factor. Current technology has demonstrated thrust levels of 10 - 40[mu]N, ...

Xie, Julie

2014-01-01T23:59:59.000Z

494

Thermoelectric Microdevice Fabrication Process and Evaluation at the Jet Propulsion Laboratory (JPL)  

E-Print Network [OSTI]

system), radioisotope thermoelectric generators (RTGs) are used for power [1]. Thermoelectric devicesThermoelectric Microdevice Fabrication Process and Evaluation at the Jet Propulsion Laboratory (JPL of integrated thermal management and power management and distribution. Micro thermoelectric converters

495

PC-Based Modeling and Simulation of Large Marine Propulsion Plant  

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At present, most of marine engine room simulators (MERS) in the ... So a simulation system of a PC-Based marine propulsion plant has been developed for training. In ... paper, a transient simulation model for lar...

Sun Jianbo; Guo Chen

2010-01-01T23:59:59.000Z

496

Design optimization of the electrically peaking hybrid (ELPH) vehicle. Research report  

SciTech Connect (OSTI)

Electrically Peaking Hybrid (ELPH) is a parallel hybrid electric vehicle propulsion concept that was invented at Texas A and M University, by the advanced vehicle systems research group. Over the past six years, design methodologies, component development, and system optimization work has been going on for this invention. This project was a first attempt in integrating the above developments into an optimized design of an ELPH passenger car. Design specifications were chosen for a full size passenger car, performing as well as any conventional car, over the EPA-FTP-75 combined city/highway drive cycles. The results of this design project were two propulsion systems. Both were appropriate for commercial production, from the points of view of cost, availability of the technologies, and components. One utilized regenerative braking and the other did not. Substantial fuel savings and emissions reductions resulted from simulating these designs on the FTP-75 drive cycle. For example, the authors` ELPH full size car, with regenerative braking, was capable of delivering over 50 miles per gallon in city driving, with corresponding reductions in its emissions. This project established the viability of the authors` ELPH concept and their design methodologies, in computer simulations. More work remains to be done on investigating more advanced power plants, such as fuel cells, and more advanced components, such as switched reluctance motor drives, for the authors` designs. Furthermore, the authors` design optimization can be carried out to more detailed levels, for prototyping and production.

Ehsani, M.; Gao, Y.; Butler, K.

1998-10-01T23:59:59.000Z

497

Vehicle Technologies Office: Vehicle Technologies Office Recognizes  

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Vehicle Technologies Vehicle Technologies Office Recognizes Outstanding Researchers to someone by E-mail Share Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Facebook Tweet about Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Twitter Bookmark Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Google Bookmark Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Delicious Rank Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Digg Find More places to share Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on AddThis.com...

498

Vehicle Technologies Office: Workplace Charging Challenge Partner:  

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Fraunhofer Center for Sustainable Energy Systems to Fraunhofer Center for Sustainable Energy Systems to someone by E-mail Share Vehicle Technologies Office: Workplace Charging Challenge Partner: Fraunhofer Center for Sustainable Energy Systems on Facebook Tweet about Vehicle Technologies Office: Workplace Charging Challenge Partner: Fraunhofer Center for Sustainable Energy Systems on Twitter Bookmark Vehicle Technologies Office: Workplace Charging Challenge Partner: Fraunhofer Center for Sustainable Energy Systems on Google Bookmark Vehicle Technologies Office: Workplace Charging Challenge Partner: Fraunhofer Center for Sustainable Energy Systems on Delicious Rank Vehicle Technologies Office: Workplace Charging Challenge Partner: Fraunhofer Center for Sustainable Energy Systems on Digg Find More places to share Vehicle Technologies Office: Workplace

499

Propulsive performance from oscillating propulsors with spanwise flexibility  

Science Journals Connector (OSTI)

...dimensional oscillating foil propulsion. M.Eng. thesis...Bose, N. 1991 Propulsion from an oscillating...planform. In Proc. Marine Dynamics Conf. 1991...Hydromechanics of swimming propulsion. Part 1. Swimming...Canada, Institute of Marine Dynamics report, no...

1997-01-01T23:59:59.000Z

500

CMVRTC: Overweight Vehicle  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Heavy and overweight vehicle brake testing for combination five-axle Heavy and overweight vehicle brake testing for combination five-axle tractor-flatbed scale The Federal Motor Carrier Safety Administration, in coordination with the Federal Highway Administration, sponsored the Heavy and Overweight Vehicle Brake Testing (HOVBT) program in order to provide information about the effect of gross vehicle weight (GVW) on braking performance. Because the Federal Motor Carrier Safety Regulations limit the number of braking system defects that may exist for a vehicle to be allowed to operate on the roadways, the examination of the effect of brake defects on brake performance for increased loads is also relevant. The HOVBT program seeks to provide relevant information to policy makers responsible for establishing load limits, beginning with providing test data for a