Sample records for automotive traction inverter

  1. High-Temperature, Air-Cooled Traction Drive Inverter Packaging...

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

    High-Temperature, Air-Cooled Traction Drive Inverter Packaging High-Temperature, Air-Cooled Traction Drive Inverter Packaging 2010 DOE Vehicle Technologies and Hydrogen Programs...

  2. Gas cooled traction drive inverter

    SciTech Connect (OSTI)

    Chinthavali, Madhu Sudhan

    2013-10-08T23:59:59.000Z

    The present invention provides a modular circuit card configuration for distributing heat among a plurality of circuit cards. Each circuit card includes a housing adapted to dissipate heat in response to gas flow over the housing. In one aspect, a gas-cooled inverter includes a plurality of inverter circuit cards, and a plurality of circuit card housings, each of which encloses one of the plurality of inverter cards.

  3. Modular PM Motor Drives for Automotive Traction Applications

    SciTech Connect (OSTI)

    Su, G.J.

    2001-10-29T23:59:59.000Z

    This paper presents modular permanent magnet (PM) motor drives for automotive traction applications. A partially modularized drive system consisting of a single PM motor and multiple inverters is described. The motor has multiple three-phase stator winding sets and each winding set is driven with a separate three-phase inverter module. A truly modularized inverter and motor configuration based on an axial-gap PM motor is then introduced, in which identical PM motor modules are mounted on a common shaft and each motor module is powered by a separate inverter module. The advantages of the modular approach for both inverter and motor include: (1) power rating scalability--one design meets different power requirements by simply stacking an adequate number of modules, thus avoiding redesigning and reducing the development cost, (2) increased fault tolerance, and (3) easy repairing. A prototype was constructed by using two inverters and an axial-gap PM motor with two sets of three-phase stat or windings, and it is used to assist the diesel engine in a hybrid electric vehicle converted from a Chevrolet Suburban. The effect of different pulse-width-modulation strategies for both motoring and regenerative modes on current control is analyzed. Torque and regenerative control algorithms are implemented with a digital signal processor. Analytical and initial testing results are included in the paper.

  4. High-Temperature, Air-Cooled Traction Drive Inverter Packaging

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

    Air-Cooled Traction Drive Inverter Packaging Madhu Chinthavali Oak Ridge National Laboratory June 10, 2010 Project ID: APE025 This presentation does not contain any proprietary,...

  5. Traction Drive Inverter Cooling with Submerged Liquid Jet Impingement on Microfinned Enhanced Surfaces (Presentation)

    SciTech Connect (OSTI)

    Waye, S.; Narumanchi, S.; Moreno, G.

    2014-09-01T23:59:59.000Z

    Jet impingement is one means to improve thermal management for power electronics in electric-drive traction vehicles. Jet impingement on microfin-enhanced surfaces further augments heat transfer and thermal performance. A channel flow heat exchanger from a commercial inverter was characterized as a baseline system for comparison with two new prototype designs using liquid jet impingement on plain and microfinned enhanced surfaces. The submerged jets can target areas with the highest heat flux to provide local cooling, such as areas under insulated-gate bipolar transistors and diode devices. Low power experiments, where four diodes were powered, dissipated 105 W of heat and were used to validate computational fluid dynamics modeling of the baseline and prototype designs. Experiments and modeling used typical automotive flow rates using water-ethylene glycol as a coolant (50%-50% by volume). The computational fluid dynamics model was used to predict full inverter power heat dissipation. The channel flow and jet impingement configurations were tested at full inverter power of 40 to 100 kW (output power) on a dynamometer, translating to an approximate heat dissipation of 1 to 2 kW. With jet impingement, the cold plate material is not critical for the thermal pathway. A high-temperature plastic was used that could eventually be injection molded or formed, with the jets formed from a basic aluminum plate with orifices acting as nozzles. Long-term reliability of the jet nozzles and impingement on enhanced surfaces was examined. For jet impingement on microfinned surfaces, thermal performance increased 17%. Along with a weight reduction of approximately 3 kg, the specific power (kW/kg) increased by 36%, with an increase in power density (kW/L) of 12% compared with the baseline channel flow configuration.

  6. Control of Two Permanent Magnet Machines Using a Five-Leg Inverter for Automotive Applications

    SciTech Connect (OSTI)

    Su, Gui-Jia [ORNL; Tang, Lixin [ORNL; Huang, Xianghui [GE Global Research

    2006-01-01T23:59:59.000Z

    This paper presents digital control schemes for control of two permanent magnet (PM) machines in an integrated traction and air-conditioning compressor drive system for automotive applications. The integrated drive system employs a five-leg inverter to power a three-phase traction PM motor and a two-phase compressor PM motor by tying the common terminal of the two-phase motor to the neutral point of the three-phase motor. Compared to a three-phase or a standalone two-phase inverter, it eliminates one phase leg and shares the control electronics between the two drives, thus significantly reducing the component count of the compressor drive. To demonstrate that the speed and torque of the two PM motors can be controlled independently, a control strategy was implemented in a digital signal processor, which includes a rotor flux field orientation based control (RFOC) for the three-phase motor, a similar RFOC and a position sensorless control in the brushless dc (BLDC) mode for the two-phase motor. Control implementation issues unique to a two-phase PM motor are also discussed. Test results with the three-phase motor running in the ac synchronous (ACS) mode while the two-phase motor either in the ACS or the BLDC mode are included to verify the independent speed and torque control capability of the integrated drive.

  7. 3736 IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, VOL. 59, NO. 8, OCTOBER 2010 Asymmetrical Multilevel Inverter for Traction Drives

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    this "one-source" multilevel system. Index Terms--AC motor drives, electric vehicles (EVs), hybrid EVs (HEVs Multilevel Inverter for Traction Drives Using Only One DC Supply Juan Dixon, Senior Member, IEEE, Javier of isolated and floating dc supplies, which makes these converters complicated to implement in electric

  8. A Soft-Switching Inverter for High-Temperature Advanced Hybrid Electric Vehicle Traction Motor Drives

    SciTech Connect (OSTI)

    None, None

    2012-01-31T23:59:59.000Z

    The state-of-the-art hybrid electric vehicles (HEVs) require the inverter cooling system to have a separate loop to avoid power semiconductor junction over temperatures because the engine coolant temperature of 105?C does not allow for much temperature rise in silicon devices. The proposed work is to develop an advanced soft-switching inverter that will eliminate the device switching loss and cut down the power loss so that the inverter can operate at high-temperature conditions while operating at high switching frequencies with small current ripple in low inductance based permanent magnet motors. The proposed tasks also include high-temperature packaging and thermal modeling and simulation to ensure the packaged module can operate at the desired temperature. The developed module will be integrated with the motor and vehicle controller for dynamometer and in-vehicle testing to prove its superiority. This report will describe the detailed technical design of the soft-switching inverters and their test results. The experiments were conducted both in module level for the module conduction and switching characteristics and in inverter level for its efficiency under inductive and dynamometer load conditions. The performance will be compared with the DOE original specification.

  9. Advanced Liquid Cooling for a Traction Drive Inverter Using Jet Impingement and Microfinned Enhanced Surfaces: Preprint

    SciTech Connect (OSTI)

    Waye, S. K.; Narumanchi, S.; Mihalic, M.; Moreno, G.; Bennion, K.; Jeffers, J.

    2014-08-01T23:59:59.000Z

    Jet impingement on plain and micro-finned enhanced surfaces was compared to a traditional channel flow configuration. The jets provide localized cooling to areas heated by the insulated-gate bipolar transistor and diode devices. Enhanced microfinned surfaces increase surface area and thermal performance. Using lighter materials and designing the fluid path to manage pressure losses increases overall performance while reducing weight, volume, and cost. Powering four diodes in the center power module of the inverter and computational fluid dynamics (CFD) modeling was used to characterize the baseline as well as jet-impingement-based heat exchangers. CFD modeling showed the thermal performance improvements should hold for a fully powered inverter. Increased thermal performance was observed for the jet-impingement configurations when tested at full inverter power (40 to 100 kW output power) on a dynamometer. The reliability of the jets and enhanced surfaces over time was also investigated. Experimentally, the junction-to- coolant thermal resistance was reduced by up to 12.5% for jet impingement on enhanced surfaces s compared to the baseline channel flow configuration. Base plate-to-coolant (convective) resistance was reduced by up to 37.0% for the jet-based configuration compared to the baseline, suggesting that while improvements to the cooling side reduce overall resistance, reducing the passive stack resistance may contribute to lowering overall junction-to-coolant resistance. Full inverter power testing showed reduced thermal resistance from the middle of the module baseplate to coolant of up to 16.5%. Between the improvement in thermal performance and pumping power, the coefficient of performance improved by up to 13% for the jet-based configuration.

  10. Advanced Integrated Traction System

    SciTech Connect (OSTI)

    Greg Smith; Charles Gough

    2011-08-31T23:59:59.000Z

    The United States Department of Energy elaborates the compelling need for a commercialized competitively priced electric traction drive system to proliferate the acceptance of HEVs, PHEVs, and FCVs in the market. The desired end result is a technically and commercially verified integrated ETS (Electric Traction System) product design that can be manufactured and distributed through a broad network of competitive suppliers to all auto manufacturers. The objectives of this FCVT program are to develop advanced technologies for an integrated ETS capable of 55kW peak power for 18 seconds and 30kW of continuous power. Additionally, to accommodate a variety of automotive platforms the ETS design should be scalable to 120kW peak power for 18 seconds and 65kW of continuous power. The ETS (exclusive of the DC/DC Converter) is to cost no more than $660 (55kW at $12/kW) to produce in quantities of 100,000 units per year, should have a total weight less than 46kg, and have a volume less than 16 liters. The cost target for the optional Bi-Directional DC/DC Converter is $375. The goal is to achieve these targets with the use of engine coolant at a nominal temperature of 105C. The system efficiency should exceed 90% at 20% of rated torque over 10% to 100% of maximum speed. The nominal operating system voltage is to be 325V, with consideration for higher voltages. This project investigated a wide range of technologies, including ETS topologies, components, and interconnects. Each technology and its validity for automotive use were verified and then these technologies were integrated into a high temperature ETS design that would support a wide variety of applications (fuel cell, hybrids, electrics, and plug-ins). This ETS met all the DOE 2010 objectives of cost, weight, volume and efficiency, and the specific power and power density 2015 objectives. Additionally a bi-directional converter was developed that provides charging and electric power take-off which is the first step towards enabling a smart-grid application. GM under this work assessed 29 technologies; investigated 36 configurations/types power electronics and electric machines, filed 41 invention disclosures; and ensured technology compatibility with vehicle production. Besides the development of a high temperature ETS the development of industrial suppliers took place because of this project. Suppliers of industrial power electronic components are numerous, but there are few that have traction drive knowledge. This makes it difficult to achieve component reliability, durability, and cost requirements necessary of high volume automotive production. The commercialization of electric traction systems for automotive industry requires a strong diverse supplier base. Developing this supplier base is dependent on a close working relationship between the OEM and supplier so that appropriate component requirements can be developed. GM has worked closely with suppliers to develop components for electric traction systems. Components that have been the focus of this project are power modules, capacitors, heavy copper boards, current sensors, and gate drive and controller chip sets. Working with suppliers, detailed component specifications have been developed. Current, voltage, and operation environment during the vehicle drive cycle were evaluated to develop higher resolution/accurate component specifications.

  11. A Novel Current Angle Control Scheme in a Current Source Inverter Fed Permanent Magnet Synchronous Motor Drive for Automotive Applications

    SciTech Connect (OSTI)

    Tang, Lixin [ORNL] [ORNL; Su, Gui-Jia [ORNL] [ORNL

    2011-01-01T23:59:59.000Z

    This paper describes a novel speed control scheme to operate a current source inverter (CSI) driven surface-mounted permanent magnet synchronous machine (SPMSM) for hybrid electric vehicles (HEVs) applications. The idea is to use the angle of the current vector to regulate the rotor speed while keeping the two dc-dc converter power switches on all the time to boost system efficiency. The effectiveness of the proposed scheme was verified with a 3 kW CSI-SPMSM drive prototype.

  12. Permanent Magnet Development for Automotive Traction Motors

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSalesOE0000652Grow YourPerformanceFacility ManagersPermanent

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

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    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

  14. Air-Cooled Traction Drive Inverter

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

    proprietary, confidential, or otherwise restricted information 2012 U.S. DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

  15. A Five-Level Three-Phase Hybrid Cascade Multilevel Inverter Using a Single DC Source

    E-Print Network [OSTI]

    Tolbert, Leon M.

    A Five-Level Three-Phase Hybrid Cascade Multilevel Inverter Using a Single DC Source for a PM to construct a 3-phase 5-level cascade multilevel inverter to be used as a drive for a PM traction motor. The 5-level inverter consists of a standard 3-leg inverter (one leg for each phase) and an H-bridge in series

  16. Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains

    E-Print Network [OSTI]

    Paderborn, Universität

    Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive Trains Wilhelm Peters, Tobias Huber, Joachim Böcker Power Electronics and Electrical Drives, Paderborn automotive traction drives are a wide speed range, a wide constant-power operation range and high efficiency

  17. Nonlinear Dynamics of Longitudinal Ground Vehicle Traction

    E-Print Network [OSTI]

    Shaw, Steven W.

    asphalt b) Wet asphalt c) Gravel d) Packed Snow Nonlinear Dynamics of Longitudinal Ground Vehicle Traction

  18. Permanent Magnet Development for Automotive Traction Motors | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket | Department of Energy ReviewsFebruary 7,

  19. Permanent Magnet Development for Automotive Traction Motors | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket | Department of Energy ReviewsFebruary

  20. Permanent Magnet Development for Automotive Traction Motors | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Careerlumens_placard-green.epsEnergy1.pdfMarket | Department of Energy ReviewsFebruaryEnergy

  1. Permanent Magnet Development for Automotive Traction Motors | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in3.pdfEnergyDepartment ofOil's ImpactAppendix AlEnergy Permanent Magnet Development

  2. Air-Cooled Traction Drive Inverter | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchThe OfficeUtility Fed. GovernmentFed. Government

  3. 892 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, VOL. 57, NO. 3, MARCH 2010 Hybrid Cascaded H-Bridge Multilevel-Inverter

    E-Print Network [OSTI]

    Brest, Université de

    -Bridge Multilevel-Inverter Induction-Motor-Drive Direct Torque Control for Automotive Applications Farid Khoucha cascaded H-bridge multilevel inverter, where each phase of the inverter can be implemented using a dc source, which would be available from fuel cells, batteries, or ultracapacitors. This inverter provides

  4. Integrated Inverter For Driving Multiple Electric Machines

    DOE Patents [OSTI]

    Su, Gui-Jia [Knoxville, TN; Hsu, John S [Oak Ridge, TN

    2006-04-04T23:59:59.000Z

    An electric machine drive (50) has a plurality of inverters (50a, 50b) for controlling respective electric machines (57, 62), which may include a three-phase main traction machine (57) and two-phase accessory machines (62) in a hybrid or electric vehicle. The drive (50) has a common control section (53, 54) for controlling the plurality of inverters (50a, 50b) with only one microelectronic processor (54) for controlling the plurality of inverters (50a, 50b), only one gate driver circuit (53) for controlling conduction of semiconductor switches (S1-S10) in the plurality of inverters (50a, 50b), and also includes a common dc bus (70), a common dc bus filtering capacitor (C1) and a common dc bus voltage sensor (67). The electric machines (57, 62) may be synchronous machines, induction machines, or PM machines and may be operated in a motoring mode or a generating mode.

  5. Symmetrical and Asymmetrical H-Bridge Multilevel Inverter for DTC Induction Motor Drive

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Symmetrical and Asymmetrical H-Bridge Multilevel Inverter for DTC Induction Motor Drive Automotive--Several works have been reported in the literature on multilevel inverters topologies, control techniques drives associated to three-phase multilevel inverter. This paper presents then a comparison study

  6. Invert Recommendations The Invert project

    E-Print Network [OSTI]

    ­ Polish Foundation for Energy Efficiency, Poland - FhG-ISI ­ Fraunhofer Institute for Systems and Innovation Research, Germany Contact/Information: Lukas.Kranzl@tuwien.ac.at www.invert.at Imprint: Energy

  7. Traction Drive Systems Breakout Group

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment7 th ,Top Value AddedTotalTownTRACTION DRIVE

  8. Smart Mobility Dutch Automotive

    E-Print Network [OSTI]

    Franssen, Michael

    Smart Mobility #12;Dutch Automotive Industry 300 companies 45k employees 17B revenue #12;Dutch Automotive Industry Focus area's: · Vehicle efficiency · Cooperative Mobility #12;Freedom, prosperity, fun;Automotive Technology Car as sustainable zero emission vehicles #12;Automotive Technology Electromagnetic car

  9. Utilizing the Traction Drive Power Electronics System to Provide...

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

    Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability...

  10. FreedomCAR Advanced Traction Drive Motor Development Phase I

    SciTech Connect (OSTI)

    Ley, Josh (UQM Technologies, Inc.); Lutz, Jon (UQM Technologies, Inc.)

    2006-09-01T23:59:59.000Z

    The overall objective of this program is to design and develop an advanced traction motor that will meet the FreedomCAR and Vehicle Technologies (FCVT) 2010 goals and the traction motor technical targets. The motor specifications are given in Section 1.3. Other goals of the program include providing a cost study to ensure the motor can be developed within the cost targets needed for the automotive industry. The program has focused on using materials that are both high performance and low costs such that the performance can be met and cost targets are achieved. In addition, the motor technologies and machine design features must be compatible with high volume manufacturing and able to provide high reliability, efficiency, and ruggedness while simultaneously reducing weight and volume. Weight and volume reduction will become a major factor in reducing cost, material cost being the most significant part of manufacturing cost at high volume. Many motor technology categories have been considered in the past and present for traction drive applications, including: brushed direct current (DC), PM (PM) brushless dc (BLDC), alternating current (AC) induction, switched reluctance and synchronous reluctance machines. Of these machine technologies, PM BLDC has consistently demonstrated an advantage in terms of power density and efficiency. As rare earth magnet cost has declined, total cost may also be reduced over the other technologies. Of the many different configurations of PM BLDC machines, those which incorporate power production utilizing both magnetic torque as well as reluctance torque appear to have the most promise for traction applications. There are many different PM BLDC machine configurations which employ both of these torque producing mechanisms; however, most would fall into one of two categories--some use weaker magnets and rely more heavily on reluctance torque (reluctance-dominant PM machines), others use strong PMs and supplement with reluctance torque (magnet-dominant PM machines). This report covers a trade study that was conducted in this phase I program to explore which type of machine best suits the FCVT requirements.

  11. Thermoelectrics Partnership: Automotive Thermoelectric Modules...

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

    Solution for Automotive Thermoelectric Modules Application Thermoelectrics Partnership: Automotive Thermoelectric Modules with Scalable Thermo- and Electro-Mechanical Interfaces...

  12. Thermoelectrics Partnership: Automotive Thermoelectric Modules...

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

    Partnership: Automotive Thermoelectric Modules with Scalable Thermo- and Electro-Mechanical Interfaces Novel Nanostructured Interface Solution for Automotive Thermoelectric...

  13. Advanced Modular Inverter Technology Development

    SciTech Connect (OSTI)

    Adam Szczepanek

    2006-02-04T23:59:59.000Z

    Electric and hybrid-electric vehicle systems require an inverter to convert the direct current (DC) output of the energy generation/storage system (engine, fuel cells, or batteries) to the alternating current (AC) that vehicle propulsion motors use. Vehicle support systems, such as lights and air conditioning, also use the inverter AC output. Distributed energy systems require an inverter to provide the high quality AC output that energy system customers demand. Today's inverters are expensive due to the cost of the power electronics components, and system designers must also tailor the inverter for individual applications. Thus, the benefits of mass production are not available, resulting in high initial procurement costs as well as high inverter maintenance and repair costs. Electricore, Inc. (www.electricore.org) a public good 501 (c) (3) not-for-profit advanced technology development consortium assembled a highly qualified team consisting of AeroVironment Inc. (www.aerovironment.com) and Delphi Automotive Systems LLC (Delphi), (www.delphi.com), as equal tiered technical leads, to develop an advanced, modular construction, inverter packaging technology that will offer a 30% cost reduction over conventional designs adding to the development of energy conversion technologies for crosscutting applications in the building, industry, transportation, and utility sectors. The proposed inverter allows for a reduction of weight and size of power electronics in the above-mentioned sectors and is scalable over the range of 15 to 500kW. The main objective of this program was to optimize existing AeroVironment inverter technology to improve power density, reliability and producibility as well as develop new topology to reduce line filter size. The newly developed inverter design will be used in automotive and distribution generation applications. In the first part of this program the high-density power stages were redesigned, optimized and fabricated. One of the main tasks was to design and validate new gate drive circuits to provide the capability of high temp operation. The new power stages and controls were later validated through extensive performance, durability and environmental tests. To further validate the design, two power stages and controls were integrated into a grid-tied load bank test fixture, a real application for field-testing. This fixture was designed to test motor drives with PWM output up to 50kW. In the second part of this program the new control topology based on sub-phases control and interphase transformer technology was successfully developed and validated. The main advantage of this technology is to reduce magnetic mass, loss and current ripple. This report summarizes the results of the advanced modular inverter technology development and details: (1) Power stage development and fabrication (2) Power stage validation testing (3) Grid-tied test fixture fabrication and initial testing (4) Interphase transformer technology development

  14. CX-006974: Categorical Exclusion Determination | Department of...

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

    Fully-Integrated Automotive Traction Inverter with Real-Time Switching Optimization CX(s) Applied: B3.6 Date: 09262011 Location(s): Colorado, Massachusetts,...

  15. Automotive electronics business

    E-Print Network [OSTI]

    Hase, Yoshiko, M.B.A. Massachusetts Institute of Technology

    2007-01-01T23:59:59.000Z

    In the automotive industry, due to the trend to introduce active safety systems, concerns about protecting the environment, and advances in information technology, key automotive manufacturers are eager to acquire new ...

  16. Automotive vehicle sensors

    SciTech Connect (OSTI)

    Sheen, S.H.; Raptis, A.C.; Moscynski, M.J.

    1995-09-01T23:59:59.000Z

    This report is an introduction to the field of automotive vehicle sensors. It contains a prototype data base for companies working in automotive vehicle sensors, as well as a prototype data base for automotive vehicle sensors. A market analysis is also included.

  17. Abstract--A reconfiguration technique for multilevel inverters incorporating a diagnostic system based on neural

    E-Print Network [OSTI]

    Tolbert, Leon M.

    of multilevel inverters for electric drive application have been discussed in [1]. The cascaded MLID is a general fit for large automotive all-electric drives because of the high VA rating possible and because]. A possible structure of a three-phase cascaded multilevel inverter drive for electric vehicle is illustrated

  18. UPDATE ON SIC-BASED INVERTER TECHNOLOGY Abstract This paper presents a study of Silicon

    E-Print Network [OSTI]

    Tolbert, Leon M.

    development of power devices is a critical aspect of the power electronic industry along with new topologies temperature SiC based inverters for automotive and power system applications. Research involves work on highUPDATE ON SIC-BASED INVERTER TECHNOLOGY Abstract ­ This paper presents a study of Silicon Carbide

  19. Evaluation of a Current Source Active Power Filter to Reduce the DC Bus Capacitor in a Hybrid Electric Vehicle Traction Drive

    E-Print Network [OSTI]

    Tolbert, Leon M.

    system, additional heat, audible noise, mechanical stress, and vibration [1]. DC bus harmonic current- powered three-phase inverter is used to drive the traction motor. Due to the switching behavior combustion engine, electric motor, and energy storage device (for example, batteries and ultracapacitors

  20. Power inverters

    DOE Patents [OSTI]

    Miller, David H. (Redondo Beach, CA); Korich, Mark D. (Chino Hills, CA); Smith, Gregory S. (Woodland Hills, CA)

    2011-11-15T23:59:59.000Z

    Power inverters include a frame and a power module. The frame has a sidewall including an opening and defining a fluid passageway. The power module is coupled to the frame over the opening and includes a substrate, die, and an encasement. The substrate includes a first side, a second side, a center, an outer periphery, and an outer edge, and the first side of the substrate comprises a first outer layer including a metal material. The die are positioned in the substrate center and are coupled to the substrate first side. The encasement is molded over the outer periphery on the substrate first side, the substrate second side, and the substrate outer edge and around the die. The encasement, coupled to the substrate, forms a seal with the metal material. The second side of the substrate is positioned to directly contact a fluid flowing through the fluid passageway.

  1. Allgemeine Testverfahren Verfahren im Automotive

    E-Print Network [OSTI]

    Cengarle, María Victoria

    Allgemeine Testverfahren Verfahren im Automotive Hauptseminar Automotive Software Engineering Verfahren im Automotive ¨Uberblick 1 Allgemeine Testverfahren Statischer Test Dynamischer Test 2 Verfahren im Automotive X­in­the­loop Rapid Prototyping #12;Allgemeine Testverfahren Verfahren im Automotive

  2. Automotive Component Product Development Enhancement

    E-Print Network [OSTI]

    Automotive Component Product Development Enhancement Through Multi-Attribute System Design Engineering Systems Division #12;Automotive Component Product Development Enhancement Through Multi of Science in Engineering and Management February 2005 ABSTRACT Automotive industry is facing a tough period

  3. boolean queries Inverted index

    E-Print Network [OSTI]

    Lu, Jianguo

    boolean queries Inverted index query processing Query optimization boolean model September 9, 2014 1 / 39 #12;boolean queries Inverted index query processing Query optimization Outline 1 boolean queries 2 Inverted index 3 query processing 4 Query optimization 2 / 39 #12;boolean queries Inverted index

  4. NETL F 451.1-1/1 Categorical Exclusion (CX) Designation Form

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

    VT,WI, CO Fully-Integrated Automotive Traction Inverter with Real-Time Switching Optimization (SUMMARY CX) The objective of this project is to conduct power inverter research,...

  5. IEEE Power Electronics Specialists Conference, PESC-97, 39-45, St. Louis, 1997. A MHz Electronic Ballast for Automotive-Type HID Lamps

    E-Print Network [OSTI]

    Ballast for Automotive-Type HID Lamps Michael Gulko and Sam Ben-Yaakov* Power Electronics Laboratory-Resonance Inverter (CS-PPRI) topology [2] as a ballast for low wattage HID lamps designated as automotive headlights lamp option to replace the conventional 'halogen' type headlights. Unfortunately, application of HID

  6. Green Power Inverter Prvningsrapport

    E-Print Network [OSTI]

    Green Power Inverter Prøvningsrapport SolenergiCentret Søren Poulsen Ivan Katic Oktober 2004 #12;Green Power Inverter målerapport.doc SolenergiCentret - 04-03-2005 2 Forord Nærværende rapport indeholder Teknologisk Instituts bidrag til målinger i forbindelse med PSO projektet "Green Power Inverter

  7. Hydrogen as an energy carrier for railway traction.

    E-Print Network [OSTI]

    Hoffrichter, Andreas

    2013-01-01T23:59:59.000Z

    ??The technical suitability of hydrogen for railway traction is evaluated in the research. World-wide, diesel fuel is currently the main source of energy for railways (more)

  8. Skutterudite Thermoelectric Generator For Automotive Waste Heat...

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

    Skutterudite Thermoelectric Generator For Automotive Waste Heat Recovery Skutterudite Thermoelectric Generator For Automotive Waste Heat Recovery Skutterudite TE modules were...

  9. Engineering and Materials for Automotive Thermoelectric Applications...

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

    and Materials for Automotive Thermoelectric Applications Engineering and Materials for Automotive Thermoelectric Applications Design and optimization of TE exhaust generator,...

  10. Novel Nanostructured Interface Solution for Automotive Thermoelectric...

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

    Partnership: Automotive Thermoelectric Modules with Scalable Thermo- and Electro-Mechanical Interfaces Thermoelectrics Partnership: Automotive Thermoelectric Modules with...

  11. Invertible Darboux Transformations

    E-Print Network [OSTI]

    Ekaterina Shemyakova

    2013-01-04T23:59:59.000Z

    For operators of many different kinds it has been proved that (generalized) Darboux transformations can be built using so called Wronskian formulae. Such Darboux transformations are not invertible in the sense that the corresponding mappings of the operator kernels are not invertible. The only known invertible ones were Laplace transformations (and their compositions), which are special cases of Darboux transformations for hyperbolic bivariate operators of order 2. In the present paper we find a criteria for a bivariate linear partial differential operator of an arbitrary order d to have an invertible Darboux transformation. We show that Wronkian formulae may fail in some cases, and find sufficient conditions for such formulae to work.

  12. Abstract-A fault detection and reconfiguration technique for a cascaded H-bridge 11-level inverter drives during faulty condition

    E-Print Network [OSTI]

    Tolbert, Leon M.

    of multilevel inverters for electric drive application have been discussed in [1]. The cascaded MLID is a general fit for large automotive all-electric drives because of the high VA rating possible and because structure of a three-phase cascaded multilevel inverter drive for an electric vehicle is illustrated in Fig

  13. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, Susan R. (Wixom, MI)

    1995-01-01T23:59:59.000Z

    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.

  14. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, S.R.

    1995-09-12T23:59:59.000Z

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

  15. Outline Inverted File Building Compression for Inverted Files Building and Compression Techniques for Inverted

    E-Print Network [OSTI]

    Barreiro, Alvaro

    Outline Inverted File Building Compression for Inverted Files Building and Compression Techniques for Inverted Files Roi Blanco Dpt. Computing Science, University of A Coruna December 13, 2005 Roi Blanco Building and Compression Techniques for Inverted Files #12;Outline Inverted File Building Compression

  16. Advanced Electric Traction System Technology Development

    SciTech Connect (OSTI)

    Anderson, Iver

    2011-01-14T23:59:59.000Z

    As a subcontractor to General Motors (GM), Ames Laboratory provided the technical expertise and supplied experimental materials needed to assess the technology of high energy bonded permanent magnets that are injection or compression molded for use in the Advanced Electric Traction System motor. This support was a sustained (Phase 1: 6/07 to 3/08) engineering effort that builds on the research achievements of the primary FreedomCAR project at Ames Laboratory on development of high temperature magnet alloy particulate in both flake and spherical powder forms. Ames Lab also provide guidance and direction in selection of magnet materials and supported the fabrication of experimental magnet materials for development of injection molding and magnetization processes by Arnold Magnetics, another project partner. The work with Arnold Magnetics involved a close collaboration on particulate material design and processing to achieve enhanced particulate properties and magnetic performance in the resulting bonded magnets. The overall project direction was provided by GM Program Management and two design reviews were held at GM-ATC in Torrance, CA. Ames Lab utilized current expertise in magnet powder alloy design and processing, along with on-going research advances being achieved under the existing FreedomCAR Program project to help guide and direct work during Phase 1 for the Advanced Electric Traction System Technology Development Program. The technical tasks included review of previous GM and Arnold Magnets work and identification of improvements to the benchmark magnet material, Magnequench MQP-14-12. Other benchmark characteristics of the desired magnet material include 64% volumetric loading with PPS polymer and a recommended maximum use temperature of 200C. A collaborative relationship was maintained with Arnold Magnets on the specification and processing of the bonded magnet material required by GM-ATC.

  17. E-Print Network 3.0 - automotive traction applications Sample...

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

    54 Spatiotemporal Constraints on the Force-Dependent Growth of Focal Jonathan Stricker, Yvonne Aratyn-Schaus, Patrick W. Oakes, and Margaret L. Gardel* Summary: adhesions...

  18. Toward single cell traction microscopy within 3D collagen matrices

    SciTech Connect (OSTI)

    Hall, Matthew S. [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Long, Rong [Department of Mechanical Engineering, University of Alberta, Edmonton, AB, Canada T6G 2G8 (Canada); Feng, Xinzeng [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Huang, YuLing [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States); Hui, Chung-Yuen [Department of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853 (United States); Wu, Mingming, E-mail: mw272@cornell.edu [Department of Biological and Environmental Engineering, Cornell University, Ithaca, NY 14853 (United States)

    2013-10-01T23:59:59.000Z

    Mechanical interaction between the cell and its extracellular matrix (ECM) regulates cellular behaviors, including proliferation, differentiation, adhesion, and migration. Cells require the three-dimensional (3D) architectural support of the ECM to perform physiologically realistic functions. However, current understanding of cellECM and cellcell mechanical interactions is largely derived from 2D cell traction force microscopy, in which cells are cultured on a flat substrate. 3D cell traction microscopy is emerging for mapping traction fields of single animal cells embedded in either synthetic or natively derived fibrous gels. We discuss here the development of 3D cell traction microscopy, its current limitations, and perspectives on the future of this technology. Emphasis is placed on strategies for applying 3D cell traction microscopy to individual tumor cell migration within collagen gels. - Highlights: Review of the current state of the art in 3D cell traction force microscopy. Bulk and micro-characterization of remodelable fibrous collagen gels. Strategies for performing 3D cell traction microscopy within collagen gels.

  19. High-Temperature, Air-Cooled Traction Drive Inverter Packaging | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground HawaiiWaste Heat Recovery: Success Storiesof

  20. Inverted gravity, not inverted shape impairs biological motion perception

    E-Print Network [OSTI]

    Troje, Nikolaus

    Inverted gravity, not inverted shape impairs biological motion perception Nikolaus Trojetroje. Scrambling should therefore impair perception even more than inversion. Upright and inverted scrambled motion). Is the cause of the inversion effect inverted gravity? If this is the case upright scrambled motion should

  1. PM Motor Parametric Design Analyses for a Hybrid Electric Vehicle Traction Drive Application

    SciTech Connect (OSTI)

    Staunton, R.H.

    2004-10-11T23:59:59.000Z

    The Department of Energy's (DOE) Office of FreedomCAR (Cooperative Automotive Research) and Vehicle Technologies office has a strong interest in making rapid progress in permanent magnet (PM) machine development. The DOE FreedomCAR program is directing various technology development projects that will advance the technology and hopefully lead to a near-term request for proposals (RFP) for a to-be-determined level of initial production. This aggressive approach is possible because the technology is clearly within reach and the approach is deemed essential, based on strong market demand, escalating fuel prices, and competitive considerations. In response, this study began parallel development paths that included a literature search/review, development and utilization of multiple parametric models, verification of the modeling methodology, development of an interior PM (IPM) machine baseline design, development of alternative machine baseline designs, and cost analyses for several candidate machines. This report summarizes the results of these activities as of September 2004. This report provides background and summary information for recent machine parametric studies and testing programs that demonstrate both the potential capabilities and technical limitations of brushless PM machines (axial gap and radial gap), the IPM machine, the surface-mount PM machines (interior or exterior rotor), induction machines, and switched-reluctance machines. The FreedomCAR program, while acknowledging the progress made by Oak Ridge National Laboratory (ORNL), Delphi, Delco-Remy International, and others in these programs, has redirected efforts toward a ''short path'' to a marketable and competitive PM motor for hybrid electric vehicle (HEV) traction applications. The program has developed a set of performance targets for the type of traction machine desired. The short-path approach entails a comprehensive design effort focusing on the IPM machine and meeting the performance targets. The selection of the IPM machine reflects industry's confidence in this market-proven design that exhibits a high power density.

  2. PM Motor Parametric Design Analyses for Hybrid Electric Vehicle Traction Drive Application: Interim Report

    SciTech Connect (OSTI)

    Staunton, R.H.

    2004-08-11T23:59:59.000Z

    The Department of Energy's (DOE) Office of FreedomCAR (Cooperative Automotive Research) and Vehicle Technologies has a strong interest in making rapid progress in permanent magnet (PM) machine development. The program is directing various technology development projects that will advance the technology and lead to request for proposals (RFP) for manufacturer prototypes. This aggressive approach is possible because the technology is clearly within reach and the approach is deemed essential, based on strong market demand, escalating fuel prices, and competitive considerations. In response, this study began parallel development paths that included a literature search/review, development and utilization of multiple parametric models to determine the effects of design parameters, verification of the modeling methodology, development of an interior PM (IPM) machine baseline design, development of alternative machine baseline designs, and cost analyses for several candidate machines. This interim progress report summarizes the results of these activities as of June 2004. This report provides background and summary information for recent machine parametric studies and testing programs that demonstrate both the potential capabilities and technical limitations of brushless PM machines (axial gap and radial gap), the IPM machine, the surface-mount PM machines (interior or exterior rotor), induction machines, and switched reluctance machines. The FreedomCAR program, while acknowledging the progress made by Oak Ridge National Laboratory, Delphi, Delco-Remy International, and others in these programs, has redirected efforts toward a ''short path'' to a marketable and competitive PM motor for hybrid electric vehicle traction applications. The program has developed a set of performance targets for the type of traction machine desired. The short-path approach entails a comprehensive design effort focusing on the IPM machine and meeting the performance targets. The selection of the IPM machine reflects industry's confidence in this market-proven design that exhibits a power density surpassed by no other machine design.

  3. Flash report: Automotive batteries

    SciTech Connect (OSTI)

    Gates, J.H.

    1995-12-01T23:59:59.000Z

    Battery inventories soared early in the years after sales plunged 15% due to the mild winter. But in the last 90 days, admist a hot summer, industry leader Exide announced a 5% price hike to assess the current market, OTR interviewed 14 professionals from the battery industry - Contacts include four battery manufacturers, one industry specialists, seven retail chains plus two wholesalers. The nine sales groups supply about 10,000 stores an automotive shops nationwide.

  4. Rare-Earth-Free Traction Motor: Rare Earth-Free Traction Motor for Electric Vehicle Applications

    SciTech Connect (OSTI)

    None

    2012-01-01T23:59:59.000Z

    REACT Project: Baldor will develop a new type of traction motor with the potential to efficiently power future generations of EVs. Unlike todays large, bulky EV motors which use expensive, imported rare-earth-based magnets, Baldors motor could be light, compact, contain no rare earth materials, and have the potential to deliver more torque at a substantially lower cost. Key innovations in this project include the use of a unique motor design, incorporation of an improved cooling system, and the development of advanced materials manufacturing techniques. These innovations could significantly reduce the cost of an electric motor.

  5. Center for Lightweighting Automotive Materials and Processing...

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

    ti010mallick2011o.pdf More Documents & Publications Center for Lightweighting Automotive Materials and Processing Center for Lightweighting Automotive Materials and...

  6. Center for Lightweighting Automotive Materials and Processing...

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

    D.C. ti06mallick.pdf More Documents & Publications Center for Lightweighting Automotive Materials and Processing Center for Lightweighting Automotive Materials and...

  7. Development of Thermoelectric Technology for Automotive Waste...

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

    Thermoelectric Technology for Automotive Waste Heat Recovery Development of Thermoelectric Technology for Automotive Waste Heat Recovery Overview and status of project to develop...

  8. Development of Thermoelectric Technology for Automotive Waste...

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

    Thermoelectric Technology for Automotive Waste Heat Recovery Development of Thermoelectric Technology for Automotive Waste Heat Recovery Presentation from the U.S. DOE Office of...

  9. Innovative Drivetrains in Electric Automotive Technology Education...

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

    Drivetrains in Electric Automotive Technology Education (IDEATE) Innovative Drivetrains in Electric Automotive Technology Education (IDEATE) 2012 DOE Hydrogen and Fuel Cells...

  10. Magnesium Research in the Automotive Lightweighting Materials...

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

    in the Automotive Lightweighting Materials Program Magnesium Research in the Automotive Lightweighting Materials Program Presentation from the U.S. DOE Office of Vehicle...

  11. High-Performance Control of Two Three-Phase Permanent-Magnet Synchronous Machines in an Integrated Drive for Automotive Applications

    SciTech Connect (OSTI)

    Tang, Lixin [ORNL; Su, Gui-Jia [ORNL

    2008-01-01T23:59:59.000Z

    The closed-loop control of an integrated dual AC drive system is presented to control two three-phase permanent-magnet motors. A five-leg inverter is employed in the drive system; three of the inverter legs are for a main traction motor, but only two are needed for a three-phase auxiliary motor by utilizing the neutral point of the traction motor. An integrated drive with reduced component count is therefore achieved by eliminating one inverter leg and its gate drivers. A modified current control scheme based on the rotor flux orientation principle is presented. Simulation and experimental results are included to verify the independent control capability of the integrated drive.

  12. Embedded Automotive System Development Process

    E-Print Network [OSTI]

    Langenwalter, Joachim

    2011-01-01T23:59:59.000Z

    Model based design enables the automatic generation of final-build software from models for high-volume automotive embedded systems. This paper presents a framework of processes, methods and tools for the design of automotive embedded systems. A steer-by-wire system serves as an example.

  13. Resonant snubber inverter

    DOE Patents [OSTI]

    Lai, J.S.; Young, R.W. Sr.; Chen, D.; Scudiere, M.B.; Ott, G.W. Jr.; White, C.P.; McKeever, J.W.

    1997-06-24T23:59:59.000Z

    A resonant, snubber-based, soft switching, inverter circuit achieves lossless switching during dc-to-ac power conversion and power conditioning with minimum component count and size. Current is supplied to the resonant snubber branches solely by the main inverter switches. Component count and size are reduced by use of a single semiconductor switch in the resonant snubber branches. Component count is also reduced by maximizing the use of stray capacitances of the main switches as parallel resonant capacitors. Resonance charging and discharging of the parallel capacitances allows lossless, zero voltage switching. In one embodiment, circuit component size and count are minimized while achieving lossless, zero voltage switching within a three-phase inverter. 14 figs.

  14. Resonant snubber inverter

    DOE Patents [OSTI]

    Lai, Jih-Sheng (Knoxville, TN); Young, Sr., Robert W. (Oak Ridge, TN); Chen, Daoshen (Knoxville, TN); Scudiere, Matthew B. (Oak Ridge, TN); Ott, Jr., George W. (Knoxville, TN); White, Clifford P. (Knoxville, TN); McKeever, John W. (Oak Ridge, TN)

    1997-01-01T23:59:59.000Z

    A resonant, snubber-based, soft switching, inverter circuit achieves lossless switching during dc-to-ac power conversion and power conditioning with minimum component count and size. Current is supplied to the resonant snubber branches solely by the main inverter switches. Component count and size are reduced by use of a single semiconductor switch in the resonant snubber branches. Component count is also reduced by maximizing the use of stray capacitances of the main switches as parallel resonant capacitors. Resonance charging and discharging of the parallel capacitances allows lossless, zero voltage switching. In one embodiment, circuit component size and count are minimized while achieving lossless, zero voltage switching within a three-phase inverter.

  15. Automotive Fuel Cell Corporation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD)ProductssondeadjustsondeadjustAboutScience Program Cumulus Humilis, 2014AutomatedAutomotive Fuel Cell

  16. Abstract-The ability of cascaded H-bridge multilevel inverter drives (MLID) to operate under faulty condition including AI-

    E-Print Network [OSTI]

    Tolbert, Leon M.

    for electric drive application have been discussed in [1]. The cascaded MLID is a general fit for large automotive all-electric drives because of the high VA rating possible and because it uses several dc voltage-phase cascaded multilevel inverter drive for an electric vehicle is illustrated in Fig. 1. The series of H

  17. Use of Fault Tree Analysis for Automotive Reliability and Safety Analysis

    SciTech Connect (OSTI)

    Lambert, H

    2003-09-24T23:59:59.000Z

    Fault tree analysis (FTA) evolved from the aerospace industry in the 1960's. A fault tree is deductive logic model that is generated with a top undesired event in mind. FTA answers the question, ''how can something occur?'' as opposed to failure modes and effects analysis (FMEA) that is inductive and answers the question, ''what if?'' FTA is used in risk, reliability and safety assessments. FTA is currently being used by several industries such as nuclear power and chemical processing. Typically the automotive industries uses failure modes and effects analysis (FMEA) such as design FMEAs and process FMEAs. The use of FTA has spread to the automotive industry. This paper discusses the use of FTA for automotive applications. With the addition automotive electronics for various applications in systems such as engine/power control, cruise control and braking/traction, FTA is well suited to address failure modes within these systems. FTA can determine the importance of these failure modes from various perspectives such as cost, reliability and safety. A fault tree analysis of a car starting system is presented as an example.

  18. Traction sheave elevator, hoisting unit and machine space

    DOE Patents [OSTI]

    Hakala, Harri (Hyvinkaa, FI); Mustalahti, Jorma (Hyvinkaa, FI); Aulanko, Esko (Kerava, FI)

    2000-01-01T23:59:59.000Z

    Traction sheave elevator consisting of an elevator car moving along elevator guide rails, a counterweight moving along counterweight guide rails, a set of hoisting ropes (3) on which the elevator car and counterweight are suspended, and a drive machine unit (6) driving a traction sheave (7) acting on the hoisting ropes (3) and placed in the elevator shaft. The drive machine unit (6) is of a flat construction. A wall of the elevator shaft is provided with a machine space with its open side facing towards the shaft, the essential parts of the drive machine unit (6) being placed in the space. The hoisting unit (9) of the traction sheave elevator consists of a substantially discoidal drive machine unit (6) and an instrument panel (8) mounted on the frame (20) of the hoisting unit.

  19. Automotive Power Generation and Control

    E-Print Network [OSTI]

    Caliskan, Vahe

    This paper describes some new developments in the application of power electronics to automotive power generation and control. A new load-matching technique is introduced that uses a simple switched-mode rectifier to achieve ...

  20. Influence of surface traction on soft robot undulation

    E-Print Network [OSTI]

    Liu, David R.

    , assist in human motor tasks, and reduce manufacturing costs. As with natural invertebrates, soft robotsArticle Influence of surface traction on soft robot undulation The International Journal of Robotics Research 32(13) 15771584 The Author(s) 2013 Reprints and permissions: sagepub

  1. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    More Documents & Publications Development of Thermoelectric Technology for Automotive Waste Heat Recovery Development of Thermoelectric Technology for Automotive Waste Heat...

  2. NSF/DOE Thermoelectics Partnership: Thermoelectrics for Automotive...

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

    Thermoelectics Partnership: Thermoelectrics for Automotive Waste Heat Recovery NSFDOE Thermoelectics Partnership: Thermoelectrics for Automotive Waste Heat Recovery 2011 DOE...

  3. NSF/DOE Thermoelectrics Partnership: Thermoelectrics for Automotive...

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

    Thermoelectrics for Automotive Waste Heat Recovery NSFDOE Thermoelectrics Partnership: Thermoelectrics for Automotive Waste Heat Recovery Development for commercialization of...

  4. Automotive Component Measurements forAutomotive Component Measurements for Determining VehicleDetermining Vehicle--Level RadiatedLevel Radiated

    E-Print Network [OSTI]

    Stuart, Steven J.

    1 Automotive Component Measurements forAutomotive Component Measurements for Determining VehicleDetermining Vehicle--Level RadiatedLevel Radiated Automotive Component Measurements forAutomotive Component automotiveWe need to characterize automotive components the way we characterize circuitcomponents the way we

  5. A Novel Inductor-less DC-AC Cascaded H-bridge Multilevel Boost Inverter for Electric/Hybrid Electric Vehicle Applications

    SciTech Connect (OSTI)

    Du, Zhong [ORNL; Ozpineci, Burak [ORNL; Tolbert, Leon M [ORNL; Chiasson, John N [ORNL

    2007-01-01T23:59:59.000Z

    This paper presents an inductorless cascaded H- bridge multilevel boost inverter for EV and HEV applications. Currently available power inverter systems for HEVs use a DC- DC boost converter to boost the battery voltage for a traditional 3-phase inverter. The present HEV traction drive inverters have low power density, are expensive, and have low efficiency because they need a bulky inductor. An inductorless cascaded H-bridge multilevel boost inverter for EV and HEV applications is proposed in this paper. Traditionally, each H-bridge needs a DC power supply. The proposed inductorless cascaded H-bridge multilevel boost inverter uses a standard 3-leg inverter (one leg for each phase) and an H-bridge in series with each inverter leg which uses a capacitor as the DC power source. Fundamental switching scheme is used to do modulation control and to produce a 5-level phase voltage. Experiments show that the proposed inductorless DC-AC cascaded H-bridge multilevel boost inverter can output a boosted AC voltage.

  6. Automotive friction-induced noises A. Elmaiana

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Automotive friction-induced noises A. Elmaiana , J.-M. Duffala , F. Gautiera , C. Pezeratb and J, France 3143 #12;Friction-induced noises are numerous in the automotive field. They also involve a large friction-induced noises with simple structures and automotive materials. Qualitative sensitivity studies

  7. Industrial motivations: Conceptual Automotive Styling Tools (CAST)

    E-Print Network [OSTI]

    Toronto, University of

    Industrial motivations: Conceptual Automotive Styling Tools (CAST) Karan Singh #12;Conceptual. · What makes automotive design unique. · Existing modeling trends. · A proposed workflow for conceptual automotive design. #12;Conceptual design desirables · Abstraction from underlying surface math. · Invite

  8. FRENCH APPROVAL PROCEDURES FOR PYROTECHNICAL AUTOMOTIVE SAFETY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    FRENCH APPROVAL PROCEDURES FOR PYROTECHNICAL AUTOMOTIVE SAFETY EQUIPMENTS Lionel Aufauvre*, Ruddy and that are not excluded of the decree application have to conform to approved types. Pyrotechnical automotive safety appeared in automotive industry and their uses grew rapidly as they showed their efficiency to save lives

  9. Trends in Automotive Communication Systems Nicolas Navet

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Trends in Automotive Communication Systems Nicolas Navet 1 , Françoise Simonot-Lion 2 May 29, 2008 of a large number of automotive networks such as LIN, J1850, CAN, FlexRay, MOST, etc.. This chap- ter rst is given. Next, the current eorts of the automotive industry on middleware technologies which may

  10. CFD-based Optimization for Automotive Aerodynamics

    E-Print Network [OSTI]

    Dumas, Laurent

    Chapter 1 CFD-based Optimization for Automotive Aerodynamics Laurent Dumas Abstract The car drag- ments. An overview of the main characteristics of automotive aerodynamics and a detailed presentation.dumas@upmc.fr) 1 #12;2 Laurent Dumas 1.1 Introducing Automotive Aerodynamics 1.1.1 A Major Concern for Car

  11. Automotive EMC Workshop Clemson Vehicular Electronics Laboratory

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    Automotive EMC Workshop Clemson Vehicular Electronics Laboratory Reliable Automotive Electronics Design for Guaranteed EMC Compliance April 29, 2013 Todd Hubing Clemson University #12;EMC Requirements they reviewed/designed would meet all automotive EMC requirements the first time they were tested. #12;Clemson

  12. Traction drive automatic transmission for gas turbine engine driveline

    DOE Patents [OSTI]

    Carriere, Donald L. (Livonia, MI)

    1984-01-01T23:59:59.000Z

    A transaxle driveline for a wheeled vehicle has a high speed turbine engine and a torque splitting gearset that includes a traction drive unit and a torque converter on a common axis transversely arranged with respect to the longitudinal centerline of the vehicle. The drive wheels of the vehicle are mounted on a shaft parallel to the turbine shaft and carry a final drive gearset for driving the axle shafts. A second embodiment of the final drive gearing produces an overdrive ratio between the output of the first gearset and the axle shafts. A continuously variable range of speed ratios is produced by varying the position of the drive rollers of the traction unit. After starting the vehicle from rest, the transmission is set for operation in the high speed range by engaging a first lockup clutch that joins the torque converter impeller to the turbine for operation as a hydraulic coupling.

  13. 2.3 Characterizations of Invertible Matrices Theorem 8 (The Invertible Matrix Theorem)

    E-Print Network [OSTI]

    Belykh, Igor

    2.3 Characterizations of Invertible Matrices Theorem 8 (The Invertible Matrix Theorem) Let true or all false). a. A is an invertible matrix. b. A is row equivalent to In. c. A has n pivot. AT is an invertible matrix. EXAMPLE: Use the Invertible Matrix Theorem to determine if A is invertible, where A 1 3 0

  14. Invertible Program Restructurings for Continuing Modular Maintenance

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Invertible Program Restructurings for Continuing Modular Maintenance Julien Cohen ASCOLA team (EMN in main- tenance with invertible program transformations. We illustrate this on the typical Expression problems with our approach. Keywords-modular maintenance; restructuring; invertible pro- gram

  15. Current Source Inverters for HEVs and FCVs

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

    weight for inverters. Currently, it contributes - Cost and weight, up to 23% of an inverter - Volume, up to 30% of an inverter * Ability of film capacitors to operate at higher...

  16. Utilizing the Traction Drive Power Electronics System to Provide...

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

    Mobile power generation can be powered by the battery for short periods of time or by the ICE for long durations * For HEVs using single inverter and motor - Add two additional...

  17. Impacts of Cooling Technology on Solder Fatigue for Power Modules in Electric Traction Drive Vehicles: Preprint

    SciTech Connect (OSTI)

    O'Keefe, M.; Vlahinos, A.

    2009-08-01T23:59:59.000Z

    Describes three power module cooling topologies for electric traction drive vehicles: two advanced options using jet impingement cooling and one option using pin-fin liquid cooling.

  18. E-Print Network 3.0 - asynchronous traction engines Sample Search...

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

    . Traction aids can also increase machine stability, improve flotation and protect tyres (Figure 1 Source: Forest Research Agency of the UK Forestry Commission Collection:...

  19. E-Print Network 3.0 - ac traction drives Sample Search Results

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

    . Traction aids can also increase machine stability, improve flotation and protect tyres (Figure 1 Source: Forest Research Agency of the UK Forestry Commission Collection:...

  20. Passive Two-Phase Cooling of Automotive Power Electronics: Preprint

    SciTech Connect (OSTI)

    Moreno, G.; Jeffers, J. R.; Narumanchi, S.; Bennion, K.

    2014-08-01T23:59:59.000Z

    Experiments were conducted to evaluate the use of a passive two-phase cooling strategy as a means of cooling automotive power electronics. The proposed cooling approach utilizes an indirect cooling configuration to alleviate some reliability concerns and to allow the use of conventional power modules. An inverter-scale proof-of-concept cooling system was fabricated, and tests were conducted using the refrigerants hydrofluoroolefin HFO-1234yf and hydrofluorocarbon HFC-245fa. Results demonstrated that the system can dissipate at least 3.5 kW of heat with 250 cm3 of HFC-245fa. An advanced evaporator design that incorporates features to improve performance and reduce size was conceived. Simulation results indicate its thermal resistance can be 37% to 48% lower than automotive dual side cooled power modules. Tests were also conducted to measure the thermal performance of two air-cooled condensers--plain and rifled finned tube designs. The results combined with some analysis were then used to estimate the required condenser size per operating conditions and maximum allowable system (i.e., vapor and liquid) temperatures.

  1. The certificate in automotive technology provides students with the education and training needed to become an entry level automotive

    E-Print Network [OSTI]

    Ickert-Bond, Steffi

    AUTOMOTIVE TECHNOLOGY The certificate in automotive technology provides students with the education and training needed to become an entry level automotive technician. The automotive service industry is one. The certificate qualifies students for entry-level positions within the automotive service and repair industry

  2. SVG for Automotive User Interfaces Dr. Sbastien Boisgrault

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 SVG for Automotive User Interfaces Dr. Sébastien Boisgérault ................................................................................................................. 1 EDONA and Human-Machine Interface Design for the Automotive Industry .................................................................................................... 7 SVG standards for automotive HMI modeling

  3. Flexibility in Aerospace and Automotive Component Manufacturing Systems

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Flexibility in Aerospace and Automotive Component Manufacturing Systems: Practice, Strategy Supervisor #12;2 #12;Flexibility in Aerospace and Automotive Component Manufacturing Systems: Practice Traditionally, parts fabrication in the aerospace and automotive industries has been associated with a number

  4. Time and event triggered communication scheduling for automotive applications

    E-Print Network [OSTI]

    Johansson, Roger

    Time and event triggered communication scheduling for automotive applications ROGER JOHANSSON and event triggered communication scheduling for automotive applications 1 ROGER JOHANSSON Department triggered communication scheduling for automotive applications ROGER JOHANSSON © ROGER JOHANSSON, 2004

  5. Automotive Waste Heat Conversion to Power Program

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

    or otherwise restricted information Project ID ace47lagrandeur Automotive Waste Heat Conversion to Power Program- 2009 Hydrogen Program and Vehicle Technologies Program...

  6. Automotive Waste Heat Conversion to Power Program

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

    Start Date: Oct '04 Program End date: Oct '10 Percent Complete: 80% 2 Automotive Waste Heat Conversion to Power Program- Vehicle Technologies Program Annual Merit Review- June...

  7. AUTOMOTIVE INDUSTRY ANALYSIS Submitted by Team A

    E-Print Network [OSTI]

    , increased environmental regulation, increased energy constraints, and increased operational efficiency for many years. Hyundai, Maruti Udyog, and Shanghai Automotive Industry Corp., based in Korea, India

  8. SDTC Neural Network Traction Control of an Electric Vehicle without Differential Gears

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    SDTC Neural Network Traction Control of an Electric Vehicle without Differential Gears A. Haddoun1 network traction control approach of an Electric vehicle (EV) without differential gears (electrical that the proposed SDTC neural network approach operates satisfactorily. Keywords--Electric vehicle propulsion

  9. Analysis, Modeling and Neural Network Traction Control of an Electric Vehicle

    E-Print Network [OSTI]

    Paris-Sud XI, Universit de

    Analysis, Modeling and Neural Network Traction Control of an Electric Vehicle without Differential Terms--Electric vehicle, electric motor, speed estimation, neural networks, traction control. I. INTRODUCTION Recently, Electric Vehicles (EVs) including fuel-cell and hybrid vehicles have been developed very

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

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A Power Presizing Methodology for Electric Vehicle Traction Motors Bekheira Tabbache1,2 , Sofiane for presizing the power of an electric vehicle traction motor. Based on the vehicle desired performances motor, power presizing, driving cycle. Nomenclature EV = Electric Vehicle; V = Vehicle speed; Vb

  11. Validation of Material Models for Automotive Carbon Fiber Composite...

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

    Validation of Material Models for Automotive Carbon Fiber Composite Structures (VMM) Libby Berger (General Motors), Omar Faruque (Ford) Co-Principal Investigators US Automotive...

  12. PENN STATE DOE GRADUATE AUTOMOTIVE TECHNOLOGY EDUCATION (GATE...

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

    PENN STATE DOE GRADUATE AUTOMOTIVE TECHNOLOGY EDUCATION (GATE) PROGRAM FOR PENN STATE DOE GRADUATE AUTOMOTIVE TECHNOLOGY EDUCATION (GATE) PROGRAM FOR 2009 DOE Hydrogen Program and...

  13. FY 2009 Progress Report for Lightweighting Materials - 5. Automotive...

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

    9 Progress Report for Lightweighting Materials - 5. Automotive Metals - Steel FY 2009 Progress Report for Lightweighting Materials - 5. Automotive Metals - Steel The primary...

  14. Understanding Automotive Exhaust Catalysts Using a Surface Science...

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

    Automotive Exhaust Catalysts Using a Surface Science Approach: Model NOx Storage Materials. Understanding Automotive Exhaust Catalysts Using a Surface Science Approach: Model NOx...

  15. Future Automotive Aftertreatment Solutions: The 150 C Challenge

    E-Print Network [OSTI]

    Page 1 Future Automotive Aftertreatment Solutions: The 150° C Challenge Workshop Report ACEC Low, the U.S. automotive manufacturer

  16. Society of Automotive Engineers honors Storey, Wagner, Sluder...

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

    Communications 865.574.4399 Society of Automotive Engineers honors Storey, Wagner, Sluder The Society of Automotive Engineers has honored ORNL researches (from left) Robert Wagner,...

  17. FY 2009 Progress Report for Lightweighting Materials - 3. Automotive...

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

    9 Progress Report for Lightweighting Materials - 3. Automotive Metals - Cast FY 2009 Progress Report for Lightweighting Materials - 3. Automotive Metals - Cast The primary...

  18. Membrane Performance and Durability Overview for Automotive Fuel...

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

    Membrane Performance and Durability Overview for Automotive Fuel Cell Applications Membrane Performance and Durability Overview for Automotive Fuel Cell Applications Presented by...

  19. CX: Categorical Determination-Alcoa Tennessee Automotive Sheet...

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

    CX: Categorical Determination-Alcoa Tennessee Automotive Sheet Expansion Project CX: Categorical Determination-Alcoa Tennessee Automotive Sheet Expansion Project Categorical...

  20. Sandia National Laboratories: ECIS-Automotive Fuel Cell Corporation...

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

    ClimateECAbout ECFacilitiesCRFECIS-Automotive Fuel Cell Corporation: Hydrocarbon Membrane Fuels the Success of Future Generation Vehicles ECIS-Automotive Fuel Cell Corporation:...

  1. E-Print Network 3.0 - automotive computational aeroacoustics...

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

    for Automotive Research (WatCAR) conducts advanced research to enhance automotive... innovation and competitiveness. More than 115 researchers, the largest university-based...

  2. Direct Hydrogen PEMFC Manufacturing Cost Estimation for Automotive...

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

    Direct Hydrogen PEMFC Manufacturing Cost Estimation for Automotive Applications: Fuel Cell Tech Team Review Direct Hydrogen PEMFC Manufacturing Cost Estimation for Automotive...

  3. Development of a Thermoelectric Device for an Automotive Zonal...

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

    a Thermoelectric Device for an Automotive Zonal HVAC System Development of a Thermoelectric Device for an Automotive Zonal HVAC System Presents development of a thermoelectric...

  4. Penn State DOE Graduate Automotive Technology Education (Gate...

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

    DOE Graduate Automotive Technology Education (Gate) Program for In-Vehicle, High-Power Energy Storage Systems Penn State DOE Graduate Automotive Technology Education (Gate)...

  5. automotive control systems: Topics by E-print Network

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

    energy savings can be obtained. Copyright 2003 IFAC Keywords: Automotive Control, Energy Management Systems Johansson, Karl Henrik 128 Create Robust Automotive Designs with...

  6. automotive engineering: Topics by E-print Network

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

    to design Subramanian, Venkat 5 Faculty of Engineering Mechanical, Automotive and Physics Websites Summary: Faculty of Engineering Mechanical, Automotive and Materials...

  7. Michigan: Universities Train Next Generation of Automotive Engineers...

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

    Michigan: Universities Train Next Generation of Automotive Engineers Michigan: Universities Train Next Generation of Automotive Engineers November 6, 2013 - 12:00am Addthis...

  8. Engaging the Next Generation of Automotive Engineers through...

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

    Engaging the Next Generation of Automotive Engineers through Advanced Vehicle Technology Competition Engaging the Next Generation of Automotive Engineers through Advanced Vehicle...

  9. Fuzzy logic electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, S.R.

    1994-10-25T23:59:59.000Z

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

  10. Fuzzy logic electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, Susan R. (Wixom, MI)

    1994-01-01T23:59:59.000Z

    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.

  11. Safe Automotive Software Karl Heckemann1

    E-Print Network [OSTI]

    Berns, Karsten

    Safe Automotive Software Karl Heckemann1 , Manuel Gesell2 , Thomas Pfister3 , Karsten Berns3 of Kaiserslautern {pfister,berns}@cs.uni-kl.de http://agrosy.cs.uni-kl.de Abstract. For automotive manufacturers for the development of embedded electronics and software. In particular, the va- riety of driver assistance systems

  12. Tools and Techniques for Ensuring Automotive EMC Performance and Reliability

    E-Print Network [OSTI]

    Stuart, Steven J.

    of the future ... 10 #12;Automotive EMC Today #12;Automotive EMC Standards Organizations 12 International Electrotechnical Commission (IEC) International Organization for Standards (IOS) Society of Automotive Engineers (SAE) CISPR, TC77 TC22, SC3, WG3 Surface Vehicle EMC Standards Committee #12;Automotive EMC

  13. A rubber mount model. Application to automotive equipment suspension

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Introduction The qualification of on-board manufactured components forces the automotive suppliers to subject

  14. Extended Constant Power Speed Range of the Brushless DC Motor Through Dual Mode Inverter Control

    SciTech Connect (OSTI)

    Lawler, J.S.

    2000-06-23T23:59:59.000Z

    The trapezoidal back electromotive force (emf) brushless direct current (dc) motor (BDCM) with surface-mounted magnets has high-power density and efficiency especially when rare-earth magnet materials are used. Traction applications, such as electric vehicles, could benefit significantly from the use of such motors. Unfortunately, a practical means for driving the motor over a constant power speed ratio (CPSR) of 5:1 or more has not yet been developed. A key feature of these motors is that they have low internal inductance. The phase advance method is effective in controlling the motor power over such a speed range, but the current at high speed may be several times greater than that required at the base speed. The increase in current during high-speed operation is due to the low motor inductance and the action of the bypass diodes of the inverter. The use of such a control would require increased current rating of the inverter semiconductors and additional cooling for the inverter, where the conduction losses increase proportionally with current, and especially for the motor, where the losses increase with the square of the current. The high current problems of phase advance can be mitigated by adding series inductance; however, this reduces power density, requires significant increase in supply voltage, and leaves the CPSR performance of the system highly sensitive to variations in the available voltage. A new inverter topology and control scheme has been developed that can drive low-inductance BDCMs over the CPSR that would be required in electric vehicle applications. This new controller is called the dual-mode inverter control (DMIC). It is shown that the BDCM has an infinite CPSR when it is driven by the DMIC.

  15. Epi-Fluorescence Inverted Microscope (Zeiss,

    E-Print Network [OSTI]

    Subramanian, Venkat

    Epi-Fluorescence Inverted Microscope (Zeiss, Observer Z1) April 2013 #12;Start Up cont. · Turn) #12;Using the Microscope cont. · On an inverted microscope samples on a glass slide are usually viewed

  16. Fractional-Slot Surface Mounted PM Motors with Concentrated Windings for HEV Traction Drives

    SciTech Connect (OSTI)

    Bailey, J.M.

    2005-10-24T23:59:59.000Z

    High-power density and efficiency resulting from elimination of rotor windings and reduced magnetic-flux losses have made the rare earth permanent magnet (PM) motor a leading candidate for the Department of Energy's Office of FreedomCAR and Vehicle Technologies (FCVTs) traction drive motor. These traction drives are generally powered by radial-gap motors, having the magnets on or embedded in a rotating cylinder separated from the inside surface of a slotted cylindrical stator by an annular gap. The two main types of radial-gap PM rotors are those with magnets mounted on the surface of a supporting back iron, called PM surface mounted (PMSM) motors, and those with magnets mounted in slots in the rotor, called interior PM (IPM) motors. Most early PM motor research was on the PMSM motor, which was thought to have an inherently low stator inductance. A low stator inductance can lead to currents dangerously exceeding rated current as the back-emf across the inductance increases with speed; consequently, part of the attempted solution has been to increase the stator inductance to reduce the rate of current rise. Although analysis suggested that there should be no problem designing sufficiently high stator inductance into PMSMs, attempts to do so were often not successful and a motor design was sought that would have a higher intrinsic inductance. Commercial research at Toyota has focused on IPM motors because they can achieve a high-saliency ratio, which helps them operate over a high constant power speed ratio (CPSR), but they are more difficult to fabricate. The Oak Ridge National Laboratory's (ORNL) position has been to continue research on brushless direct current (dc) motors (BDCMs) because of ease of fabrication and increased power output. Recently there has been a revival of interest in a fractional-slot PMSMs [15] made with concentrated windings because they possess three important features. First, they can increase the motor's inductance sufficiently to reduce the characteristic current to value of the rated current, which will enable them to operate at high CPSR. This feature also limits short-circuit fault currents. Second, their segmented structure simplifies assembly problems and is expected to reduce assembly costs. Third, the back-emf waveform is nearly sinusoidal with low cogging. To examine in depth this design ORNL entered into a collaborative agreement with the University of Wisconsin to build and test a 6 kW laboratory demonstration unit. Design, fabrication, and testing of the unit to 4000 rpm were completed during FY 2005. The motor will be sent to ORNL to explore ways to control its inverter to achieve higher efficiency during FY 2006. This paper first reviews the concept of characteristic current and what is meant by optimal flux weakening. It then discusses application of the fractional-slot concentrated winding technique to increase the d-axis inductance of a PMSM showing how this approach differs from an integral-slot motor with sinusoidal-distributed windings. This discussion is followed by a presentation of collaborative analyses and comparison with the University of Wisconsin's measured data on a 6 kW, 36-slot, 30-pole motor with concentrated windings. Finally ORNL presents a PMSM design with integral-slot windings that appears to meet the FreedomCAR Specifications, but has some disadvantages. Further collaboration with the University of Wisconsin is planned for FY 2006 to design a motor that meets FreedomCAR specifications.

  17. Leica-Inverted-2 -1-Short instructions Short instructions for the Leica-Inverted-2

    E-Print Network [OSTI]

    Manstein, Dietmar J.

    Leica-Inverted-2 -1- Short instructions Short instructions for the Leica-Inverted-2 Version 230307 off the system Page 8 8. Trouble shooting Page 10 #12;Leica-Inverted-2 -2- Short instructions 1. Laser;Leica-Inverted-2 -3- Short instructions 2. General guidelines 1. Lab rules: This room is a S2 laboratory

  18. David J. Hathaway, IBM EDAInverter Minimization 1 Inverter Minimization -OverviewInverter Minimization -Overview

    E-Print Network [OSTI]

    Ellis-Monaghan, Joanna

    David J. Hathaway, IBM EDAInverter Minimization 1 Inverter Minimization - OverviewInverter network a polarity graph 9 Initially consider only equal cost AND, NAND, OR, and NOR gates 9 Inverters for covering fundamental cycles 9 Considering electrically useful inverters #12;David J. Hathaway, IBM

  19. On Optimal Inverters Department of Computer Science

    E-Print Network [OSTI]

    Chen, Yijia

    On Optimal Inverters Yijia Chen Department of Computer Science Shanghai Jiaotong University yijia.flum@math.uni­freiburg.de Abstract Leonid Levin showed that every algorithm computing a function has an optimal inverter. Recently. An inverter I of F is an algorithm that for all y in the range of F computes a preimage I(y) of y, i.e., F

  20. AN "AC INDUCTOR" BASED GRID CONNECTED INVERTER

    E-Print Network [OSTI]

    AN "AC INDUCTOR" BASED GRID CONNECTED INVERTER Ilya Zeltser, Student Member, IEEE and Sam Ben proposes a soft switched Output Current Sourcing (OCS) grid connected inverter that applies a high sourcing inverters where the small disturbance at the line voltage may lead to current run away

  1. Invertibility of random matrices M. Rudelson

    E-Print Network [OSTI]

    Weinberger, Hans

    Invertibility of random matrices M. Rudelson We will discuss several recent developments related to invertibility and spectral properties of large random matrices. Consider an n ? n matrix, whose values are independent identically distributed random variables. The invertibility questions can be roughly divided

  2. On Optimal Inverters Department of Computer Science

    E-Print Network [OSTI]

    Chen, Yijia

    On Optimal Inverters Yijia Chen Department of Computer Science Shanghai Jiaotong University yijia.flum@math.uni-freiburg.de Abstract Leonid Levin showed that every algorithm computing a function has an optimal inverter. Recently. An inverter I of F is an algorithm that for all y in the range of F computes a preimage I(y) of y, i.e., F

  3. Joint Inverted Indexing Kaiming He2

    E-Print Network [OSTI]

    Bernstein, Phil

    Joint Inverted Indexing Yan Xia1 Kaiming He2 Fang Wen2 Jian Sun2 1 University of Science and Technology of China 2 Microsoft Research Asia Abstract Inverted indexing is a popular non-exhaustive solution to large scale search. An inverted file is built by a quantizer such as k-means or a tree structure. It has

  4. E-Print Network 3.0 - automotive electrics automotive Sample...

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

    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...

  5. Thermal Study of Inverter Components: Preprint

    SciTech Connect (OSTI)

    Sorensen, N. R.; Thomas, E. V.; Quintana, M. A.; Barkaszi, S.; Rosenthal, A.; Zhang, Z.; Kurtz, S.

    2012-06-01T23:59:59.000Z

    Thermal histories of inverter components were collected from operating inverters from several manufacturers and three locations. The data were analyzed to determine thermal profiles, the dependence on local conditions, and to assess the effect on inverter reliability. Inverter temperatures were shown to increase with the power dissipation of the inverters, follow diurnal and annual cycles, and have a dependence on wind speed. An accumulated damage model was applied to the temperature profiles and an example of using these data to predict reliability was explored.

  6. Strategic frameworks in automotive systems architecting

    E-Print Network [OSTI]

    Tampi, Mahesh

    2012-01-01T23:59:59.000Z

    More often than not, large-scale engineering concepts such as those used by creative automotive manufacturing companies require the incorporation of significant capital outlays and resources for the purposes of implementation ...

  7. Market Acceptance of Advanced Automotive Technologies Model ...

    Open Energy Info (EERE)

    Automotive Technologies Model (MA3T) Consumer Choice Model AgencyCompany Organization: Oak Ridge National Laboratory OpenEI Keyword(s): EERE tool, Market Acceptance of Advanced...

  8. Effective switching frequency multiplier inverter

    DOE Patents [OSTI]

    Su, Gui-Jia (Oak Ridge, TN); Peng, Fang Z. (Okemos, MI)

    2007-08-07T23:59:59.000Z

    A switching frequency multiplier inverter for low inductance machines that uses parallel connection of switches and each switch is independently controlled according to a pulse width modulation scheme. The effective switching frequency is multiplied by the number of switches connected in parallel while each individual switch operates within its limit of switching frequency. This technique can also be used for other power converters such as DC/DC, AC/DC converters.

  9. E-Print Network 3.0 - automotive medicine Sample Search Results

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

    support research directed... Professional Programs Automotive Engineering Design Science Energy Systems Engineering Financial Engineering... Global Automotive and Manufacturing...

  10. Multilevel Inverters for Electric Vehicle Applications

    SciTech Connect (OSTI)

    Habetler, T.G.; Peng, F.Z.; Tolbert, L.M.

    1998-10-22T23:59:59.000Z

    This paper presents multilevel inverters as an application for all-electric vehicle (EV) and hybrid-electric vehicle (HEV) motor drives. Diode-clamped inverters and cascaded H-bridge inverters, (1) can generate near-sinusoidal voltages with only fundamental frequency switching; (2) have almost no electromagnetic interference (EMI) and common-mode voltage; and (3) make an EV more accessible/safer and open wiring possible for most of an EV'S power system. This paper explores the benefits and discusses control schemes of the cascade inverter for use as an EV motor drive or a parallel HEV drive and the diode-clamped inverter as a series HEV motor drive. Analytical, simulated, and experimental results show the superiority of these multilevel inverters for this new niche.

  11. System and method for regulating resonant inverters

    DOE Patents [OSTI]

    Stevanovic, Ljubisa Dragoljub (Clifton Park, NY); Zane, Regan Andrew (Superior, CO)

    2007-08-28T23:59:59.000Z

    A technique is provided for direct digital phase control of resonant inverters based on sensing of one or more parameters of the resonant inverter. The resonant inverter control system includes a switching circuit for applying power signals to the resonant inverter and a sensor for sensing one or more parameters of the resonant inverter. The one or more parameters are representative of a phase angle. The resonant inverter control system also includes a comparator for comparing the one or more parameters to a reference value and a digital controller for determining timing of the one or more parameters and for regulating operation of the switching circuit based upon the timing of the one or more parameters.

  12. Droop-Controlled Inverters are Kuramoto Oscillators

    E-Print Network [OSTI]

    Bullo, Francesco

    Droop-Controlled Inverters are Kuramoto Oscillators John W. Simpson-Porco Florian D¨orfler Barbara, Santa Barbara, CA 93106, USA, (e-mail: {johnwsimpsonporco,dorfler

  13. Automotive Repair by Number Theory Bart Snapp and Chris Snapp

    E-Print Network [OSTI]

    Snapp, Bart

    Automotive Repair by Number Theory Bart Snapp and Chris Snapp While repairing the ignition switch on a 1981 Fiat Spider, we discovered the following connection between number theory and automotive repair

  14. Life cycle cost modeling of automotive paint systems

    E-Print Network [OSTI]

    Leitz, Christopher W. (Christopher William), 1976-

    2007-01-01T23:59:59.000Z

    Vehicle coating is an important component of automotive manufacturing. The paint shop constitutes the plurality of initial investment in an automotive assembly plant, consumes the majority of energy used in the plant's ...

  15. automotive technician training: Topics by E-print Network

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

    with Ttic5ms, Tcycle40ms. lic scheduling on automotive Navet, Nicolas 292 2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Engineering Websites Summary: . The...

  16. automotive shredder residue: Topics by E-print Network

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

    with Ttic5ms, Tcycle40ms. lic scheduling on automotive Navet, Nicolas 240 2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Engineering Websites Summary: . The...

  17. automotive shredded residues: Topics by E-print Network

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

    with Ttic5ms, Tcycle40ms. lic scheduling on automotive Navet, Nicolas 246 2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Engineering Websites Summary: . The...

  18. automotive shredder residues: Topics by E-print Network

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

    with Ttic5ms, Tcycle40ms. lic scheduling on automotive Navet, Nicolas 240 2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Engineering Websites Summary: . The...

  19. automotive sensor manufacturing: Topics by E-print Network

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

    with Ttic5ms, Tcycle40ms. lic scheduling on automotive Navet, Nicolas 427 2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Engineering Websites Summary: . The...

  20. AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC...

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

    AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC) AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC) Presentation from the U.S. DOE Office of Vehicle...

  1. AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC...

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

    1 - High Integrity Magnesium Automotive Components (HI-MAC) edm2@chrysler.com February 28, 2008 AMD 601 High Integrity - Magnesium Automotive Components (HI-MAC) USAMP 2008 DOE...

  2. Hybrid Multilevel Inverter with Single DC Haiwen Liu1

    E-Print Network [OSTI]

    Tolbert, Leon M.

    Hybrid Multilevel Inverter with Single DC Source Haiwen Liu1 , Leon M. Tolbert1, 2 , Burak Ozpineci Knoxville, TN 37932 3. Parker-Hannifin Corp. Olive Branch, MI 38654 Abstract- A hybrid multilevel inverter inverter (one leg for each phase) and H-bridge in series with each inverter leg. The inverter can be used

  3. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    More Documents & Publications Skutterudite Thermoelectric Generator For Automotive Waste Heat Recovery Thermoelectric Conversion of Exhaust Gas Waste Heat into Usable...

  4. Electrocatalysts for Automotive Fuel Cells: Status and Challenges

    Broader source: Energy.gov [DOE]

    Presentation by Nilesh Dale for the 2013 DOE Catalyst Working Group Meeting on electrocatalysts for automotive fuel cells.

  5. The Challenges for PEMFC Catalysts in Automotive Applications

    Broader source: Energy.gov [DOE]

    Presentation by Stephen Campbell for the 2013 DOE Catalysis Working Group Meeting on PEMFC catalysts in automotive applications.

  6. Model based dependability evaluation for automotive control functions

    E-Print Network [OSTI]

    Schlingloff, Holger

    Model based dependability evaluation for automotive control functions Sasa Vulinovic 1 , Bernd@informatik.hu-berlin.de Abstract In this paper, we study the evaluation of reliability for embedded functions in automotive. In order to assess fault tolerant designs for automotive software it is essential to be able to predict

  7. Complex Embedded Automotive Control Systems DaimlerChrysler

    E-Print Network [OSTI]

    Duffy, Ken

    Complex Embedded Automotive Control Systems CEMACS DaimlerChrysler SINTEF Glasgow University Description The high level of complexity in automotive systems requires a new approach to design. Moreover, to achieve higher performance and increased safety a coordination of different automotive control systems

  8. Adaptive Rollover Prevention for Automotive Vehicles with Differential Braking

    E-Print Network [OSTI]

    Duffy, Ken

    Adaptive Rollover Prevention for Automotive Vehicles with Differential Braking Selim Solmaz, switching, and tuning (MMST) paradigm [13, 14, 15] for preventing un­tripped rollover in automotive vehicles performance than its fixed robust counterpart. Keywords: Automotive control; Multiple models; Parameter

  9. Multimedia Systems as Immune System to Improve Automotive Security?

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Multimedia Systems as Immune System to Improve Automotive Security? Jana Dittmann1 , Tobias Hoppe1 and environment. Especially in the field of automotive security, producers are seek- ing cost efficient- using resources. Initially, working in automotive security, it was easy to see that a wide variety

  10. Service-Oriented Modelling of Automotive Systems Laura Bocchi

    E-Print Network [OSTI]

    Bocchi, Laura

    Service-Oriented Modelling of Automotive Systems Laura Bocchi Department of Computer Science@di.fc.ul.pt ABSTRACT We discuss the suitability of service-oriented computing for the automotive domain. We present a formal high-level language in which complex automotive activities can be modelled in terms of core

  11. Digital Styling for Designers: in Prospective Automotive Design

    E-Print Network [OSTI]

    Toronto, University of

    Digital Styling for Designers: in Prospective Automotive Design Seok-Hyung Bae and Ryugo Kijima}@vsl.gifu-u.ac.jp Abstract. Although a great part of the new-product development process in automotive industry is already-aided styling (CAS), (2) to propose desirable CAS guidelines reflecting the characteristics of the automotive

  12. Holistic Data-Driven Diagnosis for Dependable Automotive Systems

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Holistic Data-Driven Diagnosis for Dependable Automotive Systems Patrick E. Lanigan Carnegie Mellon, emer- gent behavior will still appear at runtime in dependable automotive systems. Such behavior occurs The automotive industry has become steadily more reliant on software- intensive distributed systems to imple

  13. Master Thesis Defining Materials in an Automotive Environment to Support

    E-Print Network [OSTI]

    Assarsson, Ulf

    Master Thesis ­ Defining Materials in an Automotive Environment to Support Realistic Virtual will decrease project time and cost. In the automotive industry, virtual evaluation is of special importance to material library in RD&T. · Demonstration on an automotive case in RD&T. Prior knowledge Knowledge

  14. WE -ADKWindows Embedded Automotive Development Kit Benefits to the developer

    E-Print Network [OSTI]

    Narasayya, Vivek

    WE -ADKWindows Embedded Automotive Development Kit Benefits to the developer: The Official-ADK, Microsoft Auto 4.1 installs on top of Windows® Embedded CE 6.0 R3 and adds automotive -specific an Automotive Infotainment Solution with Microsoft Auto 4.1 and Qualnetics WE

  15. A Driving Simulator for Teaching Embedded Automotive Control Applications

    E-Print Network [OSTI]

    Gillespie, Brent

    A Driving Simulator for Teaching Embedded Automotive Control Applications Paul G. Griffiths component uses a typical automotive power- train micro-controller and teaches topics in system dynamics students build a fixed-based driving simulator to test advanced automotive control system designs

  16. AutoMotive technology College of Rural and Community Development

    E-Print Network [OSTI]

    Hartman, Chris

    AutoMotive technology College of Rural and Community Development Community and Technical College 907-455-2932 www.ctc.uaf.edu/programs/Automotive/ certificate Minimum Requirements for Certificate: 34 credits The automotive technology program provides students with the edu- cation and training needed

  17. Challenges for Qualitative Electrical Reasoning in Automotive Circuit Simulation

    E-Print Network [OSTI]

    Snooke, Neal

    Challenges for Qualitative Electrical Reasoning in Automotive Circuit Simulation Neal Snooke it to be used for applications on realistic automotive circuits. The type of circuits for which it is most automotive circuits with more complex overall behaviour can be approximated using this type of modelling

  18. Analysis and Clustering of Model Clones: An Automotive Industrial Experience

    E-Print Network [OSTI]

    Cordy, James R.

    Analysis and Clustering of Model Clones: An Automotive Industrial Experience Manar H. Alalfi, James similarity in industrial automotive models. We apply our model clone detection tool, SIMONE, to identify and suggests better ways to maintain them. I. INTRODUCTION In todays automotive industry, models are widely

  19. Towards Characterizing and Classifying Communication-based Automotive Applications

    E-Print Network [OSTI]

    Perrig, Adrian

    Towards Characterizing and Classifying Communication-based Automotive Applications from a Wireless opportunity to develop various types of communication-based automotive applications. To date, many applications have been identified by the automotive community. Given the large number and diverse nature

  20. Platform Based Design for Automotive Sensor Conditioning L. Fanucci1

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Platform Based Design for Automotive Sensor Conditioning L. Fanucci1 , A. Giambastiani2 , F. Iozzi3 kinds of sensors for automotive applications is presented. A platform based design approach is pursued prototyping. A case study is presented concerning the conditioning of a Gyro yaw rate sensor for automotive

  1. A Review of Embedded Automotive Protocols Nicolas Navet

    E-Print Network [OSTI]

    Navet, Nicolas

    A Review of Embedded Automotive Protocols Nicolas Navet 1 , Françoise Simonot-Lion 2 April 14, 2008 of a large number of automotive networks such as LIN, J1850, CAN, FlexRay, MOST, etc.. This pa- per rst is given. Next, the current eorts of the automotive industry on middleware technologies which may

  2. INNOVATION IN AUTOMOTIVE TELEMATICS SERVICES: CHARACTERISTICS OF THE FIELD AND

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    INNOVATION IN AUTOMOTIVE TELEMATICS SERVICES: CHARACTERISTICS OF THE FIELD AND MANAGEMENT is a radical innovation for automotive industry. Therefore traditional design models, such as heavyweight, published in "Int. J. of Automotive Technology et Management 3, 1/2 (2003) 144-159" #12;2 communication

  3. The Marginalized Particle Filter for Automotive Tracking Applications

    E-Print Network [OSTI]

    Gustafsson, Fredrik

    1 The Marginalized Particle Filter for Automotive Tracking Applications Andreas Eidehall Thomas Sch surroundings (lane geometry and the position of other vehicles), which is needed for intelligent automotive in a nonlinear estimation problem. For automotive tracking systems, these problems are traditionally handled

  4. Design of automotive X-by-Wire systems Cdric Wilwert

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Design of automotive X-by-Wire systems Cédric Wilwert PSA Peugeot - Citroën 92000 La Garenne Phone : +33 3 83 58 17 62 simonot@loria.fr CONTENTS Design of automotive X-by-Wire systems ................................................................................................................................ 9 3.2 Main time-triggered protocols for automotive industry

  5. STATISTICAL SIGNAL PROCESSING FOR AUTOMOTIVE SAFETY SYSTEMS Fredrik Gustafsson

    E-Print Network [OSTI]

    Gustafsson, Fredrik

    STATISTICAL SIGNAL PROCESSING FOR AUTOMOTIVE SAFETY SYSTEMS Fredrik Gustafsson Department The amount of software in general and safety systems in particular increases rapidly in the automotive- cessing area. 1. INTRODUCTION Henry Ford revolutionized the automotive industry more than 100 years ago

  6. Secure Embedded Platform for Networked Automotive M. Gomathisankaran

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Secure Embedded Platform for Networked Automotive Systems M. Gomathisankaran Dept. of Computer University of North Texas 1 Introduction Modern automotive systems contain numerous electronic sensors automotive systems, is a challenge for our generation. Our focus in this position paper is on the security

  7. Design Automation Challenges in Automotive CPS Sayan Mitra

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Design Automation Challenges in Automotive CPS Sayan Mitra mitras@illinois.edu In principle, best theorem proving. Unfortunately, a stan- dardized open repository of benchmarks for automotive CPS-up companies, in which each play a role and the automotive CPS community flourishes. A good benchmark

  8. The Economic Impact of South Carolina's Automotive Cluster

    E-Print Network [OSTI]

    Almor, Amit

    The Economic Impact of South Carolina's Automotive Cluster Developed by: Division of Research Moore's Automotive Cluster 1 Study Prepared by: Dr. Douglas P. Woodward Director, Division of Research woodward-777-4425 Research Assistants Yuri Bhanage and David Jonathan Prepared for the South Carolina Automotive Council

  9. Model-Based Quality Assurance of Automotive Software

    E-Print Network [OSTI]

    Jurjens, Jan

    Model-Based Quality Assurance of Automotive Software Jan Jürjens1 , Daniel Rei?2 , and David, Germany Abstract. Software in embedded (e.g. automotive) systems requires a high level of reliability to the automotive sector, characterized by strict safety requirements to com- ponents of a motor vehicle (see [5, 16

  10. Tackling Automotive Challenges with an Integrated RE & Design Artifact Model

    E-Print Network [OSTI]

    Tackling Automotive Challenges with an Integrated RE & Design Artifact Model Birgit Penzenstadler Boltzmannstr. 3, 85748 Garching, Germany {penzenst}@in.tum.de Abstract. The automotive industry faces the need, Documentation, Automotive, Em- bedded Systems 1 Introduction A well-known fact is that the complexity

  11. Measurement of Dynamic Parameters of Automotive Exhaust Mohan D. Rao

    E-Print Network [OSTI]

    Rao, Mohan

    1 01NVC-121 Measurement of Dynamic Parameters of Automotive Exhaust Hangers Mohan D. Rao ME Copyright © 2001 Society of Automotive Engineers, Inc. ABSTRACT Different methodologies to test and analyze the dynamic stiffness (K) and damping (C) properties of several silicone and EPDM rubber automotive exhaust

  12. TEACHING DURABILITY IN AUTOMOTIVE APPLICATIONS USING A RELIABILITY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 TEACHING DURABILITY IN AUTOMOTIVE APPLICATIONS USING A RELIABILITY APPROACH Anne Morel (1), André gained over five academic years of teaching fatigue the assessment of automotive components using, initially developed in the automotive industry and since extended to the aeronautical and mechanical

  13. Computer Graphic Tools for Automotive Paint Engineering Gary W. Meyer

    E-Print Network [OSTI]

    Minnesota, University of

    Computer Graphic Tools for Automotive Paint Engineering Gary W. Meyer University of Minnesota graphics programs that can be used to solve automotive paint engineering problems. New surface reflection models have been created for simulating the appearance of automotive paint, and the hardware available

  14. Model-based Quality Assurance of Automotive Software

    E-Print Network [OSTI]

    Jurjens, Jan

    Model-based Quality Assurance of Automotive Software Jan Jürjens1 , Daniel Reiss2 , David (Germany) #12;Jan Jürjens et al.: Model-based Quality Assurance of Automotive Software 2 The Problem (Meta. #12;Jan Jürjens et al.: Model-based Quality Assurance of Automotive Software 3 The Problem (Meta

  15. The Marginalized Particle Filter for Automotive Tracking Applications

    E-Print Network [OSTI]

    Schön, Thomas

    The Marginalized Particle Filter for Automotive Tracking Applications Andreas Eidehall Thomas B surroundings (lane geometry and the position of other vehicles), which is needed for intelligent automotive in a nonlinear estimation problem. For automotive tracking systems, these problems are traditionally handled

  16. Reliability and Throughput in Future Automotive Communication Networks

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Reliability and Throughput in Future Automotive Communication Networks John Liu, Timothy TaltyStar. This action created a new industry called automotive telematics, helping to save lives and providing, the automotive telematics industry has experienced a healthy growth in North America. During the current economic

  17. Automatic Parallelization of Hand Written Automotive Engine Control

    E-Print Network [OSTI]

    Kasahara, Hironori

    Automatic Parallelization of Hand Written Automotive Engine Control Codes Using OSCAR Compiler Dan approach to realize the next- generation automobiles integrated control system. However, automotive-core processors for a long time. This paper proposes to parallelize an automotive engine crankshaft control

  18. Modeling Buffers with Data Refresh Semantics in Automotive Architectures

    E-Print Network [OSTI]

    Pennsylvania, University of

    studies from the automotive electronics domain. Categories and Subject Descriptors: C.3 [SpecialModeling Buffers with Data Refresh Semantics in Automotive Architectures Linh T.X. Phan1 Reinhard,lee}@cis.upenn.edu reinhard.schneider@rcs.ei.tum.de samarjit@tum.de ABSTRACT Automotive architectures consist of multiple

  19. Development of Sensors for Automotive PEM-based Fuel Cells

    E-Print Network [OSTI]

    organization #12;4 Sensors for Automotive PEM Fuel Cells - Motivation Sensor Performance and Cost ImprovementsDevelopment of Sensors for Automotive PEM-based Fuel Cells DOE Agreement DE-FC04-02AL67616 Brian FC Series 200 - 50 kW PEM #12;2 Development of Sensors for Automotive PEM-based Fuel Cells ­ Program

  20. Automotive Powertrain Control: A Survey Jeffrey A. Cook, Jing Sun

    E-Print Network [OSTI]

    Grizzle, Jessy W.

    recent and historical publications on automotive powertrain control. Control- oriented models of gasoline, hybrid electric powertrains and automotive fuel cells. In each case, fundamental models are discussed developments spurred major efforts by automotive manufacturers to reduce fuel consumption and vehicle emissions

  1. The inverter in a hybrid or fully

    E-Print Network [OSTI]

    Davies, Christopher

    The inverter in a hybrid or fully electric vehicle, such as the Toyota Prius, supplies power from the batteries to the motor. Inverters used in this application are currently limited by their power new material devices under real operating conditions. A project with TRW and others is investigating

  2. Inverted faces are (eventually) processed holistically Jennifer J. Richler

    E-Print Network [OSTI]

    Palmeri, Thomas

    Inverted faces are (eventually) processed holistically Jennifer J. Richler , Michael L. Mack whether processing differences between upright and inverted faces are qualitative or quantitative. We present two experiments comparing holistic processing of upright and inverted faces within the composite

  3. Invertible extensions of continuous maps Real symmetric functions

    E-Print Network [OSTI]

    Mortini, Raymond

    Invertible extensions of continuous maps Real symmetric functions Covering dimension Bass and topological stable rank Real symmetric extensions of invertible tuples of multivariable continuous functions;Invertible extensions of continuous maps Real symmetric functions Covering dimension Bass and topological

  4. Status and Trend of Automotive Power Packaging

    SciTech Connect (OSTI)

    Liang, Zhenxian [ORNL

    2012-01-01T23:59:59.000Z

    Comprehensive requirements in aspects of cost, reliability, efficiency, form factor, weight, and volume for power electronics modules in modern electric drive vehicles have driven the development of automotive power packaging technology intensively. Innovation in materials, interconnections, and processing techniques is leading to enormous improvements in power modules. In this paper, the technical development of and trends in power module packaging are evaluated by examining technical details with examples of industrial products. The issues and development directions for future automotive power module packaging are also discussed.

  5. 2011 Automotive Industry Seminar -"Challenges after the Earthquake" In recent years, the automotive industry has experienced a severe economic depression led by

    E-Print Network [OSTI]

    2011 Automotive Industry Seminar - "Challenges after the Earthquake" In recent years, the automotive industry has experienced a severe economic depression led by subprime loan issues, recalls Automotive Industry Seminar "Challenges after the Earthquake" in cooperation with the Consulate

  6. Integration of Novel Flux Coupling Motor and Current Source Inverter...

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

    Current Source Inverters for HEVs and FCVs Vehicle Technologies Office Merit Review 2014: Wireless Charging Integration of Novel Flux Coupling Motor and Current Source Inverter...

  7. Optically Isolated HVIGBT Based MW Cascade Inverter Building...

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

    Capacity Power ConverterInverter Competitive Advantages Only One Other >100 KW Heat Pipe Inverter - GE Innovation Series Converter - Non-Optical, Lower Power Capacity...

  8. Integration of Novel Flux Coupling Motor and Current Source Inverter

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

    To integrate a non permanent magnet (PM) electric machine and a current source inverter (CSI) * minimizing capacitors in inverters * eliminating rare earth materials used in...

  9. Advanced Soft Switching Inverter for Reducing Switching and Power...

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

    lai.pdf More Documents & Publications Advanced Soft Switching Inverter for Reducing Switching and Power Losses Advanced Soft Switching Inverter for Reducing Switching and Power...

  10. NONLINEAR MAGNETIC LEVITATION OF AUTOMOTIVE ENGINE VALVES

    E-Print Network [OSTI]

    Grizzle, Jessy W.

    NONLINEAR MAGNETIC LEVITATION OF AUTOMOTIVE ENGINE VALVES K. Peterson, J.W. Grizzle, and A.G. Stefanopoulou University of Michigan, Ann Arbor Abstract: Position regulation of a magnetic levitation the region of attraction. The effects of magnetic saturation are included in the model, and accounted

  11. City Browser: Developing a Conversational Automotive HMI

    E-Print Network [OSTI]

    seanyliu@mit.edu Shannon Roberts1 MIT ­ AgeLab scr09@mit.edu Jeff Zabel2 BMW Technology Office jeff.zabel@bmw,4], in an automotive environment safety is a key consideration and device operation must not negatively impact

  12. A New Aerodynamic Traction Principle for Handling Products on an Air Cushion

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 A New Aerodynamic Traction Principle for Handling Products on an Air Cushion Guillaume J. Laurent. The product is carried on a thin air cushion and transported along the system by induced air flows principle for handling delicate and clean products, such as silicon wafers, glass sheets or flat foodstuff

  13. Co-Simulation of an Electric Traction Drive Christoph Schulte and Joachim Bocker

    E-Print Network [OSTI]

    Paderborn, Universität

    Co-Simulation of an Electric Traction Drive Christoph Schulte and Joachim B¨ocker Abstract--For the simulation of electrical drives, reduced- order models or simple look-up tables are often used in order) for an electric drive, where the control structure, power electronics and motor are modeled in different environ

  14. A Library of SIMULINK Blocks for Real-Time Control of HEV Traction John Chiasson1

    E-Print Network [OSTI]

    Tolbert, Leon M.

    algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs algorithms for the various types of motor drives considered for hybrid electric vehicles (HEVs02FCC-30 A Library of SIMULINK Blocks for Real-Time Control of HEV Traction Drives John Chiasson1

  15. INTRODUCTION The main reasons for fitting traction aids to forest machines

    E-Print Network [OSTI]

    INTRODUCTION The main reasons for fitting traction aids to forest machines are to increase the grip between machine wheels and the ground surface and to spread load weight. The area of the wheel in contact than wheels alone the footprint size increases and ground pressure exerted by the machine is reduced

  16. EV3 : Traction drives and generators A: Electric machine design and optimization 1

    E-Print Network [OSTI]

    Boyer, Edmond

    EV3 : Traction drives and generators A: Electric machine design and optimization 1 Influence Electrical Machine Type B. Aslan1 , J. Korecki1 , T. Vigier1 , E. Semail1 bassel.aslan@yahoo.com, korecki according to the electrical angle e (angle between current and back-EMF vector), for different values

  17. Inverted catenoids, curvature singularities and tethered membranes

    E-Print Network [OSTI]

    Pavel Castro-Villarreal; Jemal Guven

    2007-02-14T23:59:59.000Z

    If a catenoid is inverted in any interior point, a deflated compact geometry is obtained which touches at two points (its poles). The catenoid is a minimal surface and, as such, is an equilibrium shape of a symmetric fluid membrane. The conformal symmetry of the Hamiltonian implies that inverted minimal surfaces are also equilibrium shapes. However, they exhibit curvature singularities at their poles. These singularities are associated with external forces pulling the poles together. Unlike the catenoid which is free of stress, there will be stress within the inverted shapes. If the surface area is fixed, reducing the external force induces a transition from a discocyte to a cup-shaped stomatocyte.

  18. Hybrid Cascaded Multilevel Inverter with PWM Control Method

    E-Print Network [OSTI]

    Tolbert, Leon M.

    162 Hybrid Cascaded Multilevel Inverter with PWM Control Method Haiwen Liu1 , Leon M. Tolbert1, 2 inverter with PWM method is presented in this paper. It consists of a standard 3-leg inverter (one leg for each phase) and H-bridge in series with each inverter leg. It can use only a single DC power source

  19. Single-electron inverter C. P. Heij,a)

    E-Print Network [OSTI]

    Single-electron inverter C. P. Heij,a) P. Hadley, and J. E. Mooij Applied Physics and DIMES, Delft for publication 8 December 2000 A single-electron inverter was fabricated that switches from a high output of the inverter, the two single-electron transistors that make up the inverter must exhibit voltage gain. Voltage

  20. Response-Time Minimization of Automotive-Inspired Dataflows on Multicore Platforms

    E-Print Network [OSTI]

    Anderson, James

    Response-Time Minimization of Automotive-Inspired Dataflows on Multicore Platforms Glenn A Abstract Dataflow software architectures are prevalent in prototypes of advanced automotive systems guarantees in these systems. Many existing automotive prototypes ensure such constraints through over

  1. Crossing innovation & product projects management: A comparative analysis in automotive industry

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Crossing innovation & product projects management: A comparative analysis in automotive industry Keywords: organizational learning, new product projects portfolio, innovation management, automotive in automotive industry INTRODUCTION Projectification and platform approaches have been two main transformation

  2. Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part II: Parametric Evaluation

    E-Print Network [OSTI]

    Xu, Xianfan

    Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part II: Parametric Evaluation been proposed to model thermoelectric generators (TEGs) for automotive waste heat recovery. Details: Thermoelectric generators, waste heat recovery, automotive exhaust, skutterudites INTRODUCTION In part I

  3. Effect of automotive electrical system changes on fuel consumption using incremental efficiency methodology

    E-Print Network [OSTI]

    Hardin, Christopher William

    2004-01-01T23:59:59.000Z

    There has been a continuous increase in automotive electric power usage. Future projections show no sign of it decreasing. Therefore, the automotive industry has a need to either improve the current 12 Volt automotive ...

  4. Forecasting the Costs of Automotive PEM Fuel Cell Systems: Using Bounded Manufacturing Progress Functions

    E-Print Network [OSTI]

    Lipman, Timonthy E.; Sperling, Daniel

    2001-01-01T23:59:59.000Z

    Costs of Automotive PEM Fuel Cell Systems - Using BoundedCosts of Automotive PEM Fuel Cell Systems - Using BoundedCosts of Automotive PEM Fuel Cell Systems Forecasting the

  5. In Proceedings of the Automotive Software Workshop on Future Generation Software Architectures in the Automotive Domain, San Diego, CA, Jan. 10-12, 2004.

    E-Print Network [OSTI]

    Garlan, David

    In Proceedings of the Automotive Software Workshop on Future Generation Software Architectures in the Automotive Domain, San Diego, CA, Jan. 10-12, 2004. Two-tiered Architectural Design for Automotive Control two-tiered design methods for automotive control systems at Ford Motor Company. Currently, Ford has

  6. Platform Based Design for Automotive Sensor Conditioning

    E-Print Network [OSTI]

    Fanucci, L; Iozzi, F; Marino, C; Rocchi, A

    2011-01-01T23:59:59.000Z

    In this paper a general architecture suitable to interface several kinds of sensors for automotive applications is presented. A platform based design approach is pursued to improve system performance while minimizing time-to-market.. The platform is composed by an analog front-end and a digital section. The latter is based on a microcontroller core (8051 IP by Oregano) plus a set of dedicated hardware dedicated to the complex signal processing required for sensor conditioning. The microcontroller handles also the communication with external devices (as a PC) for data output and fast prototyping. A case study is presented concerning the conditioning of a Gyro yaw rate sensor for automotive applications. Measured performance results outperform current state-of-the-art commercial devices.

  7. Lightweight Steel Solutions for Automotive Industry

    SciTech Connect (OSTI)

    Lee, Hong Woo; Kim, Gyosung; Park, Sung Ho [Technical Research Laboratories, POSCO, 699, Gumho-dong, Gwangyang-si, Jeonnam, 545-090 (Korea, Republic of)

    2010-06-15T23:59:59.000Z

    Recently, improvement in fuel efficiency and safety has become the biggest issue in worldwide automotive industry. Although the regulation of environment and safety has been tightened up more and more, the majority of vehicle bodies are still manufactured from stamped steel components. This means that the optimized steel solutions enable to demonstrate its ability to reduce body weight with high crashworthiness performance instead of expensive light weight materials such as Al, Mg and composites. To provide the innovative steel solutions for automotive industry, POSCO has developed AHSS and its application technologies, which is directly connected to EVI activities. EVI is a technical cooperation program with customer covering all stages of new car project from design to mass production. Integrated light weight solutions through new forming technologies such as TWB, hydroforming and HPF are continuously developed and provided for EVI activities. This paper will discuss the detailed status of these technologies especially light weight steel solutions based on innovative technologies.

  8. Friction of Materials for Automotive Applications

    SciTech Connect (OSTI)

    Blau, Peter Julian [ORNL

    2013-01-01T23:59:59.000Z

    This brief overview of friction-related issues in materials for automobiles is invited for a special issue on automotive materials in the ASM journal AM&P. It describes a range of areas in a ground vehicle in which friction must be controlled or minimized. Applications range from piston rings to tires, and from brakes to fuel injector components. A perspective on new materials and lubricants, and the need for validation testing is presented.

  9. Automotive Fuel Efficiency Improvement via Exhaust Gas Waste...

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

    of thermoelectric technology beyond seat heating and cooling and in doing so reduce CO2 emissions and conserve energy. lagrandeur.pdf More Documents & Publications Automotive...

  10. STATEMENT OF CONSIDERATIONS REQUEST BY DELPHI AUTOMOTIVE SYSTEMS...

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

    waiver petition and in subsequent discussions with DOE Patent Counsel, Delphi Automotive Systems, L.L.C (Delphi) has requested an advance waiver of domestic and foreign...

  11. Status and Prospects of the Global Automotive Fuel Cell Industry...

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

    ORNLTM-2013222 Status and Prospects of the Global Automotive Fuel Cell Industry and Plans for Deployment of Fuel Cell Vehicles and Hydrogen Refueling Infrastructure Revised July...

  12. Automotive Import Taxation : Trade from Germany to Finland.

    E-Print Network [OSTI]

    Lautamki, Lassi

    2014-01-01T23:59:59.000Z

    ??The automotive taxation in Finland is high on international standards. Vehicles are be-ing imported to Finland daily. A significant share - over 23 000 automobiles (more)

  13. New Weld Process Increases Efficiency of Automotive Manufacturing...

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

    Technologies Office (VTO) researchers at ORNL developed a non-destructive, infrared thermography-based system for evaluating weld quality. The new process enables automotive...

  14. Status and Prospects of the Global Automotive Fuel Cell Industry...

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

    Status and Prospects of the Global Automotive Fuel Cell Industry and Plans for Deployment of Fuel Cell Vehicles and Hydrogen Refueling Infrastructure Status and Prospects of the...

  15. automotive technology related: Topics by E-print Network

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

    Automotive Informatics: Information Technology and Enterprise Transformation in the Automobile Industry 1 CiteSeer Summary: This essay examines the role of information technology...

  16. automotive emissions control: Topics by E-print Network

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

    analysis; automotive control system. I. INTRODUCTION In reliability Zachmann, Gabriel 25 Research on Calculation Method of Period and Deadline of Frame in...

  17. automotive emission control: Topics by E-print Network

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

    analysis; automotive control system. I. INTRODUCTION In reliability Zachmann, Gabriel 25 Research on Calculation Method of Period and Deadline of Frame in...

  18. automotive propulsion system: Topics by E-print Network

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

    analysis; automotive control system. I. INTRODUCTION In reliability Zachmann, Gabriel 49 Mini-Micro Thrusters, LOX Hydrocarbon Propulsion, and Attitude Control...

  19. automotive propulsion systems: Topics by E-print Network

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

    analysis; automotive control system. I. INTRODUCTION In reliability Zachmann, Gabriel 49 Mini-Micro Thrusters, LOX Hydrocarbon Propulsion, and Attitude Control...

  20. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    Technology for Automotive Waste Heat Recovery Cost-Competitive Advanced Thermoelectric Generators for Direct Conversion of Vehicle Waste Heat into Useful Electrical Power...

  1. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    & Publications Engineering and Materials for Automotive Thermoelectric Applications Electrical and Thermal Transport Optimization of High Efficient n-type Skutterudites Electrical...

  2. AMD 405: Improved Automotive Suspension Components Cast with...

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

    Maryland. merit08mccarty5.pdf More Documents & Publications AMD 601 High Integrity -Magnesium Automotive Components (HI-MAC) Low Cost PM Technology for Particle Reinforced...

  3. Powder Metal Performance Modeling of Automotive Components ?AMD...

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

    Automotive Components: Manufacturing Process Feasibility StudyAMD 310 Structural Cast Magnesium Development (SCMD) AMD 111 Magnesium Front End Design And Development (AMD603)...

  4. FY 2009 Progress Report for Lightweighting Materials - 6. Automotive...

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

    2008 Progress Report for Lightweighting Materials - 6. Automotive Metals-Crosscutting Magnesium Front End Research and Development AMD 604 Magnesium Front End Development (AMD 603...

  5. Low Cost PM Technology for Particle Reinforced Titanium Automotive...

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

    10 - Low Cost PM Technology for Particle Reinforced Titanium Automotive Components edm2@chrysler.com February 28, 2008 Low Cost PM Technology for Particle Reinforced Titanium...

  6. Develop Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    Waste Heat Recovery Engineering and Materials for Automotive Thermoelectric Applications Electrical and Thermal Transport Optimization of High Efficient n-type Skutterudites...

  7. automotive structural applications: Topics by E-print Network

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

    AUTOMOTIVE ACCESSORIES: RETHINKING DESIGN MATERIALS THROUGH CORNSTARCH, SUGARCANE AND HEMP CiteSeer Summary: Current bioproducts or bio-based products do not only require less...

  8. Final report: U.S. competitive position in automotive technologies

    SciTech Connect (OSTI)

    Albert, Michael B.; Cheney, Margaret; Thomas, Patrick; Kroll, Peter

    2002-09-30T23:59:59.000Z

    Patent data are presented and analyzed to assess the U.S. competitive position in eleven advanced automotive technology categories, including automotive fuel cells, hydrogen storage, advanced batteries, hybrid electric vehicles and others. Inventive activity in most of the technologies is found to be growing at a rapid pace, particularly in advanced batteries, automotive fuel cells and ultracapacitors. The U.S. is the clear leader in automotive fuel cells, on-board hydrogen storage and light weight materials. Japan leads in advanced batteries, hybrid electric vehicles, ultracapacitors, and appears to be close to overtaking the U.S. in other areas of power electronics.

  9. Webinar: Automotive and MHE Fuel Cell System Cost Analysis

    Broader source: Energy.gov [DOE]

    Video recording and text version of the webinar titled, Automotive and MHE Fuel Cell System Cost Analysis, originally presented on April 16, 2013.

  10. ECE 438 Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric

    E-Print Network [OSTI]

    ECE 438 ­ Electric and Hybrid Vehicles Catalog Description: History of electric traction. Introduction to electric and hybrid-electric vehicle configurations. Vehicle mechanics. Energy sources and storage. Range prediction. Motor for HEVs. Electric drive components. Vehicle transmission system. Credits

  11. Roles of 3D traction forces in migration and focal adhesion dynamics of bovine aortic endothelial cells

    E-Print Network [OSTI]

    Hur, Sung-Sik

    2007-01-01T23:59:59.000Z

    BY BAEC. 51 FIG. 3-21. 3D DISPLACEMENT FIELD BY BAECPAXILLIN 52 xii FIG. 3-22. 3D TRACTION FORCE FIELD BY BAEC61 FIG. 3-31. 3D DISPLACEMENT FIELD OF GFP-FAK TRANSFECTED

  12. E-Print Network 3.0 - automotive small brush-type Sample Search...

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

    automotive aftermarket industry and the oil... and gas industry. Recent projects have centered around hybridelectric vehicles and automotive battery Source: Liblit, Ben -...

  13. E-Print Network 3.0 - automotive quality systems Sample Search...

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

    Quality Assurance of Automotive Software Jan Jrjens1 , Daniel Reiss2 , David... (Germany) 12;Jan Jrjens et al.: Model-based Quality Assurance of Automotive Software 2 The...

  14. E-Print Network 3.0 - automotive life cycle Sample Search Results

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

    STATIONARY AND AUTOMOTIVE PARTICIPANTS Summary: , life cycle efficiency Standards for air path, electric path and fuel path Corporate goals... AND AUTOMOTIVE PARTICIPANTS...

  15. E-Print Network 3.0 - axisymmetric automotive components Sample...

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

    Automotive EMC Performance and Reliability Todd Hubing Michelin... Systems 3 Current automotive electronics design and integration strategies are not sustainable. ... Source:...

  16. E-Print Network 3.0 - automotive environmental impact Sample...

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

    environmental impact Search Powered by Explorit Topic List Advanced Search Sample search results for: automotive environmental impact Page: << < 1 2 3 4 5 > >> 1 Automotive...

  17. E-Print Network 3.0 - automotive components Sample Search Results

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

    and Search in Model-Based Automotive SWHW Summary: Master Thesis Examensarbete (30 hp) Optimization and Search in Model-Based Automotive SW... of embedded HWSW for the...

  18. E-Print Network 3.0 - advanced automotive technologies Sample...

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

    technologies Search Powered by Explorit Topic List Advanced Search Sample search results for: advanced automotive technologies Page: << < 1 2 3 4 5 > >> 1 Automotive Engineering...

  19. E-Print Network 3.0 - australian automotive door Sample Search...

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

    Quality Assurance of Automotive Software Jan Jrjens1 , Daniel Reiss2 , David... (Germany) 12;Jan Jrjens et al.: Model-based Quality Assurance of Automotive Software 2...

  20. E-Print Network 3.0 - automotive vehicle sensors Sample Search...

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

    mission-critical tasks, automotive CPSes pose stringent requirements... automotive sensor networks. In IEEE ... Source: Zhang, Hongwei - Department of Computer Science, Wayne State...

  1. E-Print Network 3.0 - automotive condensed solution Sample Search...

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

    of IMECE'03 Summary: the evaporator model and seven from the condenser) for a subcritical automotive air conditioning cycle. The model... ADAPTIVE CONTROL TO AUTOMOTIVE AIR...

  2. DOE Provides $4.7 Million to Support Excellence in Automotive...

    Office of Environmental Management (EM)

    Automotive Technology Education (GATE) Centers of Excellence. The goal of GATE is to train a future workforce of automotive engineering professionals to overcome technology...

  3. Part I:Part I: Degradation in 3.2 nm Gate Oxides:Degradation in 3.2 nm Gate Oxides: Effects on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET

    E-Print Network [OSTI]

    Anlage, Steven

    on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET Characteristics.2 nm Gate Oxides: Effects on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET

  4. CRADA Final Report for CRADA Number ORNL98-0521 : Development of an Electric Bus Inverter Based on ORNL Auxiliary Resonant Tank (ART) Soft-Switching Technology

    SciTech Connect (OSTI)

    Ayers, C.W.

    2001-05-08T23:59:59.000Z

    The Power Electronics and Electric Machinery Research Center (PEEMRC) of Oak Ridge National Laboratory (ORNL) has for many years been developing technologies for power converters for motor drives and many other applications. Some of the research goals are to improve efficiency and reduce audible and electromagnetic interference noise generation for inverters and the driven loads. The converters are being required to produce more power with reduced weight and volume, which requires improvements in heat removal from the electronics, as well as improved circuit designs that have fewer electrical losses. PEEMRC has recently developed and patented a soft-switching inverter topology called an Auxiliary Resonant Tank (ART), and this design has been tested and proven at ORNL using a 10-kW laboratory prototype. The objective of this project was to develop, test, and install the ART inverter technology in an electric transit bus with the final goal of evaluating performance of the ORNL inverter under field conditions in a vehicle. A scaled-up inverter with the capacity to drive a 22-e bus was built based on the 10-kW ORNL laboratory prototype ART soft-switching inverter. Most (if not all) commercially available inverters for traction drive and other applications use hard-switching inverters. A Cooperative Research and Development Agreement was established with the Chattanooga Area Regional Transit Authority (CARTA), the Electric Transit Vehicle Institute (ETVI), and Advanced Vehicle Systems (AVS), all of Chattanooga, along with ORNL. CARTA, which maintains and operates the public transit system in Chattanooga, provided an area for testing the vehicle alongside other similar vehicles in the normal operating environment. ETVI offers capabilities in standardized testing and reporting and also provides exposure in the electric transit vehicle arena for ORNL's technologies. The third Chattanooga partner, (AVS) manufactures all-electric and hybrid electric transit buses using inverter drive systems from several manufacturers. AVS provided help in field installation, and parts for laboratory testing. A 100-kW field-ready unit was developed, tested in an ORNL laboratory, and installed and successfully operated in a CARTA bus in Chattanooga. The tests on the vehicle were performed at a CARTA maintenance facility and at a l-mile test track in Chattanooga managed by CARTA.

  5. The Inverted Block Rate:The Inverted Block Rate: An Alternative to Flat Rate BillingAn Alternative to Flat Rate Billing

    E-Print Network [OSTI]

    Hughes, Larry

    The Inverted Block Rate:The Inverted Block Rate: An Alternative to Flat Rate BillingAn Alternative;Inverted Block RateInverted Block Rate 22 IntroductionIntroduction ·· Modern societies rely on electrical collectionMetering and Rate Models facilitate collection #12;Inverted Block RateInverted Block Rate 33 Rate

  6. United States Automotive Materials Partnership LLC (USAMP)

    SciTech Connect (OSTI)

    United States Automotive Materials Partnership

    2011-01-31T23:59:59.000Z

    The United States Automotive Materials Partnership LLC (USAMP) was formed in 1993 as a partnership between Chrysler Corporation, Ford Motor Company, and General Motors Corporation. Since then the U.S. Department of Energy (DOE) has supported its activities with funding and technical support. The mission of the USAMP is to conduct vehicle-oriented research and development in materials and materials processing to improve the competitiveness of the U.S. Auto Industry. Its specific goals are: (1) To conduct joint research to further the development of lightweight materials for improved automotive fuel economy; and (2) To work with the Federal government to explore opportunities for cooperative programs with the national laboratories, Federal agencies such as the DOE and universities. As a major component of the DOE's Office of FreedomCAR and Vehicle Technologies Program (FCVT) collaboration with the USAMP, the Automotive Lightweighting Materials (ALM) program focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce automotive vehicle body and chassis weight without compromising other attributes such as safety, performance, recyclability, and cost. The FCVT was announced in FY 2002 and implemented in FY 2003, as a successor of the Partnership for a New Generation of Vehicles (PNGV), largely addressed under the first Cooperative Agreement. This second USAMP Cooperative Agreement with the DOE has expanded a unique and valuable framework for collaboratively directing industry and government research efforts toward the development of technologies capable of solving important societal problems related to automobile transportation. USAMP efforts are conducted by the domestic automobile manufacturers, in collaboration with materials and manufacturing suppliers, national laboratories, universities, and other technology or trade organizations. These interactions provide a direct route for implementing newly developed materials and technologies, and have resulted in significant technical successes to date, as discussed in the individual project summary final reports. Over 70 materials-focused projects have been established by USAMP, in collaboration with participating suppliers, academic/non-profit organizations and national laboratories, and executed through its original three divisions: the Automotive Composites Consortium (ACC), the Automotive Metals Division (AMD), and Auto/Steel Partnership (A/SP). Two new divisions were formed by USAMP in 2006 to drive research emphasis on integration of structures incorporating dissimilar lightweighting materials, and on enabling technology for nondestructive evaluation of structures and joints. These new USAMP divisions are: Multi-Material Vehicle Research and Development Initiative (MMV), and the Non-Destructive Evaluation Steering Committee (NDE). In cooperation with USAMP and the FreedomCAR Materials Technical Team, a consensus process has been established to facilitate the development of projects to help move leveraged research to targeted development projects that eventually migrate to the original equipment manufacturers (OEMs) as application engineering projects. Research projects are assigned to one of three phases: concept feasibility, technical feasibility, and demonstration feasibility. Projects are guided through ongoing monitoring and USAMP offsite reviews, so as to meet the requirements of each phase before they are allowed to move on to the next phase. As progress is made on these projects, the benefits of lightweight construction and enabling technologies will be transferred to the supply base and implemented in production vehicles. The single greatest barrier to automotive use of lightweight materials is their high cost; therefore, priority is given to activities aimed at reducing costs through development of new materials, forming technologies, and manufacturing processes. The emphasis of the research projects reported in this document was largely on applied research and evaluation of mass savings opportunities thro

  7. Topics in Modeling, Control, and Implementation in Automotive Systems

    E-Print Network [OSTI]

    on inclusion of the dynamics of load transfer, which are of importance in active yaw-control and rollTopics in Modeling, Control, and Implementation in Automotive Systems #12;#12;Topics in Modeling, Control, and Implementation in Automotive Systems Magnus Gäfvert Lund 2003 #12;To my Mother (1943 ­ 1995

  8. Nonlinear Control for Magnetic Levitation of Automotive Engine Valves

    E-Print Network [OSTI]

    Grizzle, Jessy W.

    1 Nonlinear Control for Magnetic Levitation of Automotive Engine Valves Katherine Peterson, Member of a magnetic levitation device is achieved through a control Lyapunov function (CLF) feedback design for and implemented on an electromagnetic valve actuator for use in automotive engines, the control methodology

  9. Automotive and fuel technologies: current and future options

    SciTech Connect (OSTI)

    Price, R.; Stamets, L.

    1984-03-01T23:59:59.000Z

    The purpose of this work is to assess the likely commercial timeframe of a broad range of automotive and fuel technologies. The report assesses the status of existing and alternative engine technologies, associated fuels, and problems which may retard their introduction and use. It estimates, where possible, the earliest time of general commercial use for each developing automotive technology and fuel.

  10. Exhaust Gas Sensor Based On Tin Dioxide For Automotive Application

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Exhaust Gas Sensor Based On Tin Dioxide For Automotive Application Arthur VALLERON a,b , Christophe, Engineering Materials Department The aim of this paper is to investigate the potentialities of gas sensor based on semi-conductor for exhaust gas automotive application. The sensing element is a tin dioxide

  11. Directions in automotive engine research and development

    SciTech Connect (OSTI)

    Samuels, G.

    1980-01-01T23:59:59.000Z

    The advent of high fuel costs and automotive fuel economy and emission regulations has cast doubt on the economic superiority and even the technical feasibility of conventional spark ignition and diesel engines, and has opened the field to other concepts. The emission regulations and their effect on the design and efficiency of conventional engines are reviewed, the research and development effort to improve the performance of conventional engines and to develop advanced engines is discussed, and the current status of these engines is presented.

  12. Fisker Automotive Inc | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6Theoretical vs Actual DataNext 25 Years |Fisker Automotive

  13. Sandia National Laboratories: Automotive Fuel Cell Cooperation

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0Energy Advanced Nuclear EnergyCouncilSandia'sCenterAutomotive

  14. Atmospheric Environment 41 (2007) 49084919 Particle size and composition distribution analysis of automotive

    E-Print Network [OSTI]

    Short, Daniel

    of automotive brake abrasion dusts for the evaluation of antimony sources of airborne particulate matter Akihiro

  15. Direct Hydrogen PEMFC Manufacturing Cost Estimation for Automotive Applications: Fuel Cell Tech Team Review

    Broader source: Energy.gov [DOE]

    This presentation reports on direct hydrogen PEMFC manufacturing cost estimation for automotive applications.

  16. Summary of Inverter Technologies Prepared for the

    E-Print Network [OSTI]

    Delivery and Energy Reliability Under Cooperative Agreement No. DE-EE0003507 Hawai`i Energy Sustainability Program Subtask 3.1 Photovoltaic Systems: Report 2 Summary of Inverter Technologies Submitted by Hawai [1]. Gridconnected photovoltaic (PV) installations, one of the most common types of DER, typically

  17. Pulse width modulation inverter with battery charger

    DOE Patents [OSTI]

    Slicker, James M. (Union Lake, MI)

    1985-01-01T23:59:59.000Z

    An inverter is connected between a source of DC power and a three-phase AC induction motor, and a microprocessor-based circuit controls the inverter using pulse width modulation techniques. In the disclosed method of pulse width modulation, both edges of each pulse of a carrier pulse train are equally modulated by a time proportional to sin .theta., where .theta. is the angular displacement of the pulse center at the motor stator frequency from a fixed reference point on the carrier waveform. The carrier waveform frequency is a multiple of the motor stator frequency. The modulated pulse train is then applied to each of the motor phase inputs with respective phase shifts of 120.degree. at the stator frequency. Switching control commands for electronic switches in the inverter are stored in a random access memory (RAM) and the locations of the RAM are successively read out in a cyclic manner, each bit of a given RAM location controlling a respective phase input of the motor. The DC power source preferably comprises rechargeable batteries and all but one of the electronic switches in the inverter can be disabled, the remaining electronic switch being part of a "flyback" DC-DC converter circuit for recharging the battery.

  18. Understanding Fault Characteristics of Inverter-Based Distributed Energy Resources

    SciTech Connect (OSTI)

    Keller, J.; Kroposki, B.

    2010-01-01T23:59:59.000Z

    This report discusses issues and provides solutions for dealing with fault current contributions from inverter-based distributed energy resources.

  19. Integrating Photovoltaic Inverter Reliability into Energy Yield Estimation with Markov Models

    E-Print Network [OSTI]

    Liberzon, Daniel

    Integrating Photovoltaic Inverter Reliability into Energy Yield Estimation with Markov Models@illinois.edu Abstract-- Markov reliability models to estimate Photovoltaic (PV) inverter reliability of the inverters. Keywords-Photovoltaic energy conversion, Markov reliability models, utility-interactive inverters

  20. NETL F 451.1/1-1, Categorical Exclusion Designation Form

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

    Electric Vehicle Traction... Develop two completely independent traction inverter systems for use in automobiles. Involves testing of commercially available power...

  1. Maximum Constant Boost Control of the Z-Source Inverter

    E-Print Network [OSTI]

    Tolbert, Leon M.

    Maximum Constant Boost Control of the Z-Source Inverter Miaosen Shen1 , Jin Wang1 , Alan Joseph1 Laboratory Abstract: This paper proposes two maximum constant boost control methods for the Z-source inverter to modulation index is analyzed in detail and verified by simulation and experiment. Keywords- Z-source inverter

  2. Invertible Symmetric 3 3 Binary Matrices and GQ(2, 4)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Invertible Symmetric 3 ? 3 Binary Matrices and GQ(2, 4) Andrea Blunck,1 P´eter L´evay,2 Metod of 27 (disregarding the identity) invertible symmetric 3 ? 3 matrices over GF(2) and the points of invertible symmetric 3 ? 3 matrices over the field GF(2) has 28 elements. The elements different from

  3. Direct modelling of envelope dynamics in resonant inverters

    E-Print Network [OSTI]

    Direct modelling of envelope dynamics in resonant inverters Y. Yin, R. Zane, R. Erickson and J. Glaser A direct dynamic modelling approach is proposed for envelope signals in resonant inverters tank and simplify analysis and controller design. Introduction: High-frequency DC-AC inverters

  4. Invertibility preservers on central simple algebras Peter Semrl

    E-Print Network [OSTI]

    Semrl, Peter

    Invertibility preservers on central simple algebras Peter Semrl Faculty of Mathematics and Physics Kaplansky's problem concerning the structure of linear pre- servers of invertibility in the special case of maps on central simple alge- bras. AMS classification: 15A86, 16K20 Keywords: invertibility preserving

  5. What to Do When Your Hessian Is Not Invertible

    E-Print Network [OSTI]

    Gill, Jeff

    What to Do When Your Hessian Is Not Invertible Alternatives to Model Respecification in Nonlinear is not invertable? The standard textbook advice is to respecify the model, but this is another way of saying for its inventor, German mathematician Ludwig Hesse) must be positive definite and hence invertible

  6. Invertibility of Nonlinear Switched Systems Aneel Tanwani and Daniel Liberzon

    E-Print Network [OSTI]

    Invertibility of Nonlinear Switched Systems Aneel Tanwani and Daniel Liberzon Abstract-- This article addresses the invertibility problem for switched nonlinear systems affine in controls. The problem and sufficient condition for a switched system to be invertible, which says that the subsystems should

  7. Friction and the Inverted Pendulum Stabilization Problem Sue Ann Campbell

    E-Print Network [OSTI]

    Campbell, Sue Ann

    Friction and the Inverted Pendulum Stabilization Problem Sue Ann Campbell Department of Applied. Keywords: inverted pendulum, friction, feedback control, stability analysis. 1 #12;INTRODUCTION to be the cause of failure of a feedback controller to stabilize a three link inverted pendulum system [2

  8. Magnetically and electrically tunable semiconductor quantum waveguide inverter

    E-Print Network [OSTI]

    Gilbert, Matthew

    Magnetically and electrically tunable semiconductor quantum waveguide inverter M. J. Gilbert,a) R implementations. We present an electrically tunable semiconductor quantum waveguide implementation of an inverter. On the other hand, if a ``0'' is present in the control bit, then the qubit is inverted. In a recent study

  9. Experimental Investigation of Microwave Vulnerabilities in CMOS Inverters

    E-Print Network [OSTI]

    Anlage, Steven

    Experimental Investigation of Microwave Vulnerabilities in CMOS Inverters Agis A. Iliadis effects on single CMOS inverters, the fundamental building block of logic ICs, consisting of an NMOS and a PMOS transistor. The inverters were designed in our group and fabricated in the AMI-1.5µm MOSIS line

  10. A Cascade Multilevel Inverter Using a Single DC Source

    E-Print Network [OSTI]

    Tolbert, Leon M.

    A Cascade Multilevel Inverter Using a Single DC Source Zhong Du1, Leon M. Tolbert2 3, John N inverter can be implemented using only a single DC power source and capacitors. A standard cascade multilevel inverter requires DC sources for 2 + 1 levels. Without requiring transformers, the scheme proposed

  11. Supplement to "Power Algorithms for Inverting Laplace Transforms"

    E-Print Network [OSTI]

    Whitt, Ward

    propose a new class of algorithms for numerically inverting Laplace transforms, called power algorithmsSupplement to "Power Algorithms for Inverting Laplace Transforms" Efstathios Avdis Department, with the parameter choice being tunable to the trans- form being inverted. The powers can be advantageously chosen

  12. Graduate Automotive Technology Education (GATE) Center

    SciTech Connect (OSTI)

    Jeffrey Hodgson; David Irick

    2005-09-30T23:59:59.000Z

    The Graduate Automotive Technology Education (GATE) Center at the University of Tennessee, Knoxville has completed its sixth year of operation. During this period the Center has involved thirteen GATE Fellows and ten GATE Research Assistants in preparing them to contribute to advanced automotive technologies in the center's focus area: hybrid drive trains and control systems. Eighteen GATE students have graduated, and three have completed their course work requirements. Nine faculty members from three departments in the College of Engineering have been involved in the GATE Center. In addition to the impact that the Center has had on the students and faculty involved, the presence of the center has led to the acquisition of resources that probably would not have been obtained if the GATE Center had not existed. Significant industry interaction such as internships, equipment donations, and support for GATE students has been realized. The value of the total resources brought to the university (including related research contracts) exceeds $4,000,000. Problem areas are discussed in the hope that future activities may benefit from the operation of the current program.

  13. Performance Test Protocol for Evaluating Inverters Used in Grid-Connected

    E-Print Network [OSTI]

    Performance Test Protocol for Evaluating Inverters Used in Grid-Connected Photovoltaic Systems....................................................................................... 6 4.1 Inverter Size

  14. Non-invertible transformations and spatiotemporal randomness

    E-Print Network [OSTI]

    J. A. Gonzalez; A. J. Moreno; L. E. Guerrero

    2006-02-12T23:59:59.000Z

    We generalize the exact solution to the Bernoulli shift map. Under certain conditions, the generalized functions can produce unpredictable dynamics. We use the properties of the generalized functions to show that certain dynamical systems can generate random dynamics. For instance, the chaotic Chua's circuit coupled to a circuit with a non-invertible I-V characteristic can generate unpredictable dynamics. In general, a nonperiodic time-series with truncated exponential behavior can be converted into unpredictable dynamics using non-invertible transformations. Using a new theoretical framework for chaos and randomness, we investigate some classes of coupled map lattices. We show that, in some cases, these systems can produce completely unpredictable dynamics. In a similar fashion, we explain why some wellknown spatiotemporal systems have been found to produce very complex dynamics in numerical simulations. We discuss real physical systems that can generate random dynamics.

  15. Electron Cloud with Inverted Beam Screens

    E-Print Network [OSTI]

    Maury Cuna, H

    2011-01-01T23:59:59.000Z

    We report the results of computer simulations studying the effect of wrongly oriented LHC beam screens on the local electron-cloud heat load and density. At 3.5 or 7-TeV energy and for maximum secondary emission-yield values below 1.5, with the inverted sawtooth orientation about ten times higher heat load is expected than for the standard orientation, and the wrongly oriented sawtooth chambers could lead to a local heat-load bottleneck during the process of surface conditioning at 25-ns bunch spacing. The available cooling margin can be significantly increased by correcting the sawtooth orientations at least for two dipole magnets in LHC arc cells 26 and 32 R3, in order that there be no half-cell cooling loop containing more than one inverted screen.

  16. Electromagnetic interference filter for automotive electrical systems

    DOE Patents [OSTI]

    Herron, Nicholas Hayden; Carlson, Douglas S; Tang, David; Korich, Mark D

    2013-07-02T23:59:59.000Z

    A filter for an automotive electrical system includes a substrate having first and second conductive members. First and second input terminals are mounted to the substrate. The first input terminal is electrically connected to the first conductive member, and the second input terminal is electrically connected to the second conductive member. A plurality of capacitors are mounted to the substrate. Each of the capacitors is electrically connected to at least one of the first and second conductive members. First and second power connectors are mounted to the substrate. The first power connector is electrically connected to the first conductive member, and the second power connector is electrically connected to the second conductive member. A common mode choke is coupled to the substrate and arranged such that the common mode choke extends around at least a portion of the substrate and the first and second conductive members.

  17. Advancing Material Models for Automotive Forming Simulations

    SciTech Connect (OSTI)

    Vegter, H.; An, Y.; Horn, C.H.L.J. ten; Atzema, E.H.; Roelofsen, M.E. [Corus Research Development and Technology, PO Box 10000, 1970 CA IJmuiden (Netherlands)

    2005-08-05T23:59:59.000Z

    Simulations in automotive industry need more advanced material models to achieve highly reliable forming and springback predictions. Conventional material models implemented in the FEM-simulation models are not capable to describe the plastic material behaviour during monotonic strain paths with sufficient accuracy. Recently, ESI and Corus co-operate on the implementation of an advanced material model in the FEM-code PAMSTAMP 2G. This applies to the strain hardening model, the influence of strain rate, and the description of the yield locus in these models. A subsequent challenge is the description of the material after a change of strain path.The use of advanced high strength steels in the automotive industry requires a description of plastic material behaviour of multiphase steels. The simplest variant is dual phase steel consisting of a ferritic and a martensitic phase. Multiphase materials also contain a bainitic phase in addition to the ferritic and martensitic phase. More physical descriptions of strain hardening than simple fitted Ludwik/Nadai curves are necessary.Methods to predict plastic behaviour of single-phase materials use a simple dislocation interaction model based on the formed cells structures only. At Corus, a new method is proposed to predict plastic behaviour of multiphase materials have to take hard phases into account, which deform less easily. The resulting deformation gradients create geometrically necessary dislocations. Additional micro-structural information such as morphology and size of hard phase particles or grains is necessary to derive the strain hardening models for this type of materials.Measurements available from the Numisheet benchmarks allow these models to be validated. At Corus, additional measured values are available from cross-die tests. This laboratory test can attain critical deformations by large variations in blank size and processing conditions. The tests are a powerful tool in optimising forming simulations prior to larger scale industrial validation.

  18. automotive radar systems: Topics by E-print Network

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

    L. 10 Detection of arcs in automotive electrical systems MIT - DSpace Summary: At the present time, there is no established method for the detection of DC electric arcing. This is...

  19. Direct Hydrogen PEMFC Manufacturing Cost Estimation for Automotive...

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

    for Automotive Applications Jayanti Sinha Stephen Lasher Yong Yang Peter Kopf Fuel Cell Tech Team Review September 24, 2008 TIAX LLC 15 Acorn Park Cambridge, MA 02140-2390...

  20. Automotive Waste Heat Conversion to Electric Power using Skutterudites...

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

    Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3 Automotive Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3...

  1. Analysis of Automotive Turbocharger Nonlinear Response Including Bifurcations

    E-Print Network [OSTI]

    Vistamehr, Arian

    2010-10-12T23:59:59.000Z

    Automotive turbochargers (TCs) increase internal combustion engine power and efficiency in passenger and commercial vehicles. TC rotors are usually supported on floating ring bearings (FRBs) or semi-floating ring bearings (SFRBs), both of which...

  2. Hybrid method for aerodynamic shape optimization in automotive industry

    E-Print Network [OSTI]

    Dumas, Laurent

    Hybrid method for aerodynamic shape optimization in automotive industry Freedeerique Muyl April 2003; accepted 4 June 2003 Abstract An aerodynamic shape optimization tool for complex industrial reasons, concerns car manufacturers. Consequently, the improvement of the aerodynamics of car shapes, more

  3. Improved supplier selection and cost management for globalized automotive production

    E-Print Network [OSTI]

    Franken, Joseph P., II (Joseph Philip)

    2012-01-01T23:59:59.000Z

    For many manufacturing and automotive companies, traditional sourcing decisions rely on total landed cost models to determine the cheapest supplier. Total landed cost models calculate the cost to purchase a part plus all ...

  4. Next Generation Bipolar Plates for Automotive PEM Fuel Cells

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

    Bipolar Plates for Automotive PEM Fuel Cells (Topic 4) GrafTech International, Ltd. * Funding DOE Cost Share Recipient Cost Share TOTAL 2,325,943 581,486 2,907,429 80% 20% 100%...

  5. Green automotive supply chain for an emerging market

    E-Print Network [OSTI]

    Fisch, Gene (Gene Joseph)

    2008-01-01T23:59:59.000Z

    Green Supply Chain Management (GSCM) within the automotive industry is largely based on combining lean manufacturing with mandated supplier adoption of ISO 14001-compliant Environmental Management Systems (EMS). This ...

  6. Electrical build issues in automotive product development : an analysis

    E-Print Network [OSTI]

    Chacko, John

    2008-01-01T23:59:59.000Z

    To be competitive and successful within the automotive industry the Original Equipment Manufacturers (OEMs) have to bring new products with features fast to market. The OEMs need to reduce the Product Development cycle ...

  7. Energy Conservation Measures at an Automotive Instructional Facility

    E-Print Network [OSTI]

    Godsey, F. W.

    1989-01-01T23:59:59.000Z

    Energy consumption and costs to operate an automotive technical training facility at Texas State Technical Institute in Waco have been significantly reduced through implementation of several energy conservation measures. This paper reviews building...

  8. automotive catalytic converter: Topics by E-print Network

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

    18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 121 Analysis of Automotive Turbocharger Nonlinear Response Including Bifurcations Texas A&M University - TxSpace Summary:...

  9. automotive catalytic converters: Topics by E-print Network

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

    18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 121 Analysis of Automotive Turbocharger Nonlinear Response Including Bifurcations Texas A&M University - TxSpace Summary:...

  10. Applications of color powder paint in the automotive industry

    E-Print Network [OSTI]

    Barberich, Bevin, 1975-

    2004-01-01T23:59:59.000Z

    Both color keyed and color specific liquid primers have been used successfully in automotive paint application, reducing the use of costly topcoat materials. Generally, color keyed primer is close in color to the topcoat ...

  11. Interim Update: Global Automotive Power Electronics R&D Relevant...

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

    Automotive Power Electronics R&D Relevant To DOE 2015 and 2020 Cost Targets 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and...

  12. Meeting the Embedded Design Needs of Automotive Applications

    E-Print Network [OSTI]

    Lyons, Wayne

    2011-01-01T23:59:59.000Z

    The importance of embedded systems in driving innovation in automotive applications continues to grow. Understanding the specific needs of developers targeting this market is also helping to drive innovation in RISC core design. This paper describes how a RISC instruction set architecture has evolved to better meet those needs, and the key implementation features in two very different RISC cores are used to demonstrate the challenges of designing for real-time automotive systems.

  13. Evaluation of reformed methanol as an automotive engine fuel

    E-Print Network [OSTI]

    McCall, David M

    1983-01-01T23:59:59.000Z

    EVALUATION OF REFORMED METHANOL AS AN AUTOMOTIVE ENGINE FUEL A Thesis by DAVID MICHAEL MCCALL Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December... 1903 Major Subject: Mechanical Engineering EVALUATION OF REFORMED METHANOL AS AN AUTOMOTIVE ENGINE FUEL A Thesis by DAVID MICHAEL MCCALL Approved as to style and content by: Dr. T. R. Lalk (Chairman o f Committee ) Dr. R. R. Davison (Member...

  14. Status and Needs of Power Electronics for Photovoltaic Inverters

    SciTech Connect (OSTI)

    QIN, YU CHIN; MOHAN, NED; WEST, RICK; BONN, RUSSELL H.

    2002-06-01T23:59:59.000Z

    Photovoltaics is the utility connected distributed energy resource (DER) that is in widespread use today. It has one element, the inverter, which is common with all DER sources except rotating generators. The inverter is required to transfer dc energy to ac energy. With all the DER technologies, (solar, wind, fuel cells, and microturbines) the inverter is still an immature product that will result in reliability problems in fielded systems. Today, the PV inverter is a costly and complex component of PV systems that produce ac power. Inverter MTFF (mean time to first failure) is currently unacceptable. Low inverter reliability contributes to unreliable fielded systems and a loss of confidence in renewable technology. The low volume of PV inverters produced restricts the manufacturing to small suppliers without sophisticated research and reliability programs or manufacturing methods. Thus, the present approach to PV inverter supply has low probability of meeting DOE reliability goals. DOE investments in power electronics are intended to address the reliability and cost of power electronics. This report details the progress of power electronics, identifies technologies that are in current use, and explores new approaches that can provide significant improvements in inverter reliability while leading to lower cost. A key element to improved inverter design is the systems approach to design. This approach includes a list of requirements for the product being designed and a preliminary requirements document is a part of this report. Finally, the design will be for a universal inverter that can be applied to several technologies. The objective of a universal inverter is to increase the quantity being manufactured so that mass-manufacturing techniques can be applied. The report includes the requirements and recommended design approaches for a new inverter with a ten-year mean time to first failure (MTFF) and with lower cost. This development will constitute a ''leap forward'' in capability that leverages emerging technologies and best manufacturing processes to produce a new, high reliability, inverter. The targeted inverter size is from two to ten kilowatts. The report is organized into four sections. A brief introduction by Sandia is followed by Section Two from Millennium Technologies (a company with UPS experience). Section Three is provided by Xantrex (a PV manufacturing company) and the University of Minnesota provided Section Four. This report is very detailed and provides inverter design information that is irrelevant to the layman. It is intended to be a comprehensive documentation of proven technology and the manufacturing skills required to produce a high reliability inverter. An accompanying report will provide a summary of the recommended approach for inverter development.

  15. Paper title: A practical model-based statistical approach for generating functional test cases: application in the automotive

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    : application in the automotive industry Authors: Roy AWEDIKIAN (Corresponding Author) Affiliation 1 Affiliation 2 : Johnson Controls Automotive Electronics Electronics Division Europe Parc Saint Christophe. This approach was tested on two representative case studies from the automotive industry. The experiment

  16. Low Latency Hybrid Hardware-in-the-Loop Simulator for Railway Traction System

    E-Print Network [OSTI]

    Paderborn, Universität

    to a virtual plant in the identical way as it is connected to the real plant, such as inverter and electric machine. The virtual plant or the HiL simulator is composed of a real time computation machine (mostly Meng Sun and Joachim Böcker Institute of Power Electronics and Drives University of Paderborn Paderborn

  17. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng (Oak Ridge, TN); Lai, Jih-Sheng (Knoxville, TN)

    1997-01-01T23:59:59.000Z

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  18. Multilevel cascade voltage source inverter with separate DC sources

    DOE Patents [OSTI]

    Peng, F.Z.; Lai, J.S.

    1997-06-24T23:59:59.000Z

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations. 15 figs.

  19. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng (Knoxville, TN); Lai, Jih-Sheng (Blacksburg, VA)

    2002-01-01T23:59:59.000Z

    A multilevel cascade voltage source inverter having separate DC sources is described herein. This inverter is applicable to high voltage, high power applications such as flexible AC transmission systems (FACTS) including static VAR generation (SVG), power line conditioning, series compensation, phase shifting and voltage balancing and fuel cell and photovoltaic utility interface systems. The M-level inverter consists of at least one phase wherein each phase has a plurality of full bridge inverters equipped with an independent DC source. This inverter develops a near sinusoidal approximation voltage waveform with only one switching per cycle as the number of levels, M, is increased. The inverter may have either single-phase or multi-phase embodiments connected in either wye or delta configurations.

  20. Laboratory testing of the (Japan Storage Battery) traction batteries GS E75A and GS E150H

    SciTech Connect (OSTI)

    Not Available

    1993-06-01T23:59:59.000Z

    This report describes the testing of the GS E75A and GS E150H flooded lead-acid 12-volt traction batteries and compares the selected batteries to U.S.-made electric vehicle batteries. The results and conclusions of the testing are presented.

  1. Vehicles - ORNL inverter licensed ... | ornl.gov

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism inS-4500IIVasudha Patri MechanicalofVehicles - ORNL inverter licensed

  2. Data compression using inverted block codes

    E-Print Network [OSTI]

    McClellan, Stan

    1991-01-01T23:59:59.000Z

    Fields 2. Minimum Distance and Error Correction 3. Matrix Notation for Codes 4. Cosets, Coset Leaders, and Maximum Likelihood Decoding C. Syndrome Decoding . D. Inversion of Codes E. Distortion Measure for Inverted Block Codes . F. Perfect Codes...+. The average distortion for block code C is found by averaging the word distortion measure of Equation 3. 3 over all codewords (n-tuples) x, so that p (C) = E[ (xlC)] = Q p(x)p. (?x). all x If the codewords are uniformly identically distributed, N...

  3. Integration of Novel Flux Coupling Motor and Current Source Inverter...

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

    of Novel Flux Coupling Motor and Current Source Inverter Novel Flux Coupling Machine without Permanent Magnets John Hsu, Oak Ridge National Laboratory, Flux Coupling...

  4. Vehicle Technologies Office Merit Review 2014: Next Generation Inverter

    Broader source: Energy.gov [DOE]

    Presentation given by General Motors at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about next generation inverter.

  5. Integration of Novel Flux Coupling Motor and Current Source Inverter

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

    To integrate a non permanent magnet (PM) electric machine and a current source inverter (CSI) *minimizing capacitors *eliminating rare earth materials used in traditional...

  6. Investigation of the singular integral and discontinuous traction problems for boundary element three-dimensional elastostatics

    E-Print Network [OSTI]

    Awad, Nadim Mansour

    1987-01-01T23:59:59.000Z

    ] ) d dFI x dR/dF2( = (gl+ g2 + g3) 2 2 2 I/2 gl = (dX2/deal 3 62 ? ( 3 KI)( 2 2) 2 (dX1/dF'2 (dX3/dFI) ? (dXI/df1)(dX2/de) g = (dxl/dFI)(dX2 F2 ? (dXI/dF2 (dx2/dFI The unit outward normal to the surface is computed from; g' gl g2 g3 2 2 2 1/2 (33... (interior) point "i", we obtain il* a I a P ? dI'? 1 i i 1* i 1* Uk dr + bk de (71) ax r ax m r ax m ax m The derivatives in (71) may be evaluated from the fundamental il* il* displacement and traction Uk and Pk (11, 12), while the surface...

  7. Lightweight PV Inverters: Dual Bi-Directional IGBTs Modules Enables Breakthrough PV Inverter Using Current Modulation Topology

    SciTech Connect (OSTI)

    None

    2012-01-30T23:59:59.000Z

    Solar ADEPT Project: PV inverters convert DC power generated by modules into usable AC power. IPCs initial 30kW 94lb. PV inverter reduces the weight of comparable 30kW PV inverters by 90%reducing the cost of materials, manufacturing, shipping, and installation. With ARPA-E support, new bi-directional silicon power switches will be developed, commercialized, and utilized in IPCs next-generation PV inverter. With these components, IPC will produce 100kW inverters that weight less than 100lb., reducing the weight of conventional 3,000lb. 100kW inverters by more than 95%. The new power switches will cut IPCs $/W manufacturing cost in half, as well as further reduce indirect shipping and installation costs.

  8. 10 IAEI NEWS September.October 2009 www.iaei.org connecting the inverter

    E-Print Network [OSTI]

    Johnson, Eric E.

    10 IAEI NEWS September.October 2009 www.iaei.org connecting the inverter by John Wiles CONNECTING THE INVERTER CONNECTING THE INVERTER 10 IAEI NEWS September.October 2009 #12;www.iaei.org September.October 2009 IAEI NEWS 11 connecting the inverter C onnecting the utility-interactive inverter prop- erly

  9. Capacitor Voltage Control in a Cascaded Multilevel Inverter as a Static Var Generator

    E-Print Network [OSTI]

    Tolbert, Leon M.

    1 Capacitor Voltage Control in a Cascaded Multilevel Inverter as a Static Var Generator M. Li, J. N for a cascaded multilevel inverter to be used for static var compensation. Index Terms-- Multilevel Inverter, Static Var Generator (SVG), Cascade inverter. I. INTRODUCTION Multilevel inverters have gained much

  10. New Mobility Solutions for a Changing Automotive Landscape: Development of a Shared Transportation Web Application

    E-Print Network [OSTI]

    Sekhon, Jasjeet S.

    New Mobility Solutions for a Changing Automotive Landscape: Development of a Shared Transportation.funginstitute.berkeley.edu #12;New Mobility Solutions for a Changing Automotive Landscape: Development of a Shared Transportation

  11. Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part I: Numerical Modeling

    E-Print Network [OSTI]

    Xu, Xianfan

    Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part I: Numerical Modeling telluride TEMs. Key words: Thermoelectric generators, waste heat recovery, automotive exhaust, skutterudites bismuth telluride are considered for thermoelectric modules (TEMs) for conversion of waste heat from

  12. Development of Cell/Pack Level Models for Automotive Li-Ion Batteries...

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

    CellPack Level Models for Automotive Li-Ion Batteries with Experimental Validation Development of CellPack Level Models for Automotive Li-Ion Batteries with Experimental...

  13. automotive tailor-welded blank: Topics by E-print Network

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

    with Ttic5ms, Tcycle40ms. lic scheduling on automotive Navet, Nicolas 285 2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Engineering Websites Summary: . The...

  14. E-Print Network 3.0 - automotive-propulsion fuel cells Sample...

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

    automotive-propulsion fuel cells Search Powered by Explorit Topic List Advanced Search Sample search results for: automotive-propulsion fuel cells Page: << < 1 2 3 4 5 > >> 1 ORNL...

  15. Advanced Automotive Technologies annual report to Congress, fiscal year 1996

    SciTech Connect (OSTI)

    NONE

    1998-03-01T23:59:59.000Z

    This annual report serves to inform the United States Congress on the progress for fiscal year 1996 of programs under the Department of Energy`s Office of Advanced Automotive Technologies (OAAT). This document complies with the legislative requirement to report on the implementation of Title III of the Automotive Propulsion Research and Development Act of 1978. Also reported are related activities performed under subsequent relevant legislation without specific reporting requirements. Furthermore, this report serves as a vital means of communication from the Department to all public and private sector participants. Specific requirements that are addressed in this report are: Discussion of how each research and development contract, grant, or project funded under the authority of this Act satisfies the requirements of each subsection; Current comprehensive program definition for implementing Title III; Evaluation of the state of automotive propulsion system research and development in the United States; Number and amount of contracts and grants awarded under Title III; Analysis of the progress made in developing advanced automotive propulsion system technology; and Suggestions for improvements in automotive propulsion system research and development, including recommendations for legislation.

  16. E-Print Network 3.0 - automotive engineers preprint Sample Search...

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

    and Transport Academy Summary: 12;12;AA AUTOMOTIVE ENGINEERING ELECTRIC POWER ENGINEERING INDUSTRIAL ECOLOGY... APPLIED MECHANICS SOUND AND VIBRATION ...

  17. E-Print Network 3.0 - automotive industry current Sample Search...

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

    Development Scheme, The UK... 12;12;AA AUTOMOTIVE ENGINEERING ELECTRIC POWER ENGINEERING INDUSTRIAL ECOLOGY... APPLIED MECHANICS SOUND AND VIBRATION ...

  18. A Software-Oriented Floating-Point Format for Enhancing Automotive Control Systems

    E-Print Network [OSTI]

    Hwu, Wen-mei W.

    A Software-Oriented Floating-Point Format for Enhancing Automotive Control Systems Daniel A, yamada, hwug@crhc.uiuc.edu August 11, 1999 In recent years, the software of automotive control sys- tems- ber computation in automotive control systems by design- ing a new software-oriented floating

  19. A co-simulation framework for design of time-triggered automotive cyber physical systems

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    A co-simulation framework for design of time-triggered automotive cyber physical systems Zhenkai Automotive control system SystemC a b s t r a c t Designing cyber-physical systems (CPS) is challenging due to the tight interactions between software, network/platform, and physical components. Automotive control sys

  20. Signal-based Automotive Communication Security and Its Interplay with Safety Requirements

    E-Print Network [OSTI]

    Ning, Peng

    Signal-based Automotive Communication Security and Its Interplay with Safety Requirements Benjamin--Recently, demonstrated attacks on automotive com- munication systems have made security a necessary requirement mechanisms for highly constrained automotive (internal) network environments, such as for example the CAN bus

  1. Development of Educational System for Automotive Engineering based on Augmented Reality

    E-Print Network [OSTI]

    Ryu, Jee-Hwan

    Development of Educational System for Automotive Engineering based on Augmented Reality Ildar for automotive engineering education is introduced. Main objective of the system is teaching disassemble/assemble procedure of automatic transmission of a vehicle to students, who study automotive engineering. System

  2. Towards Managing Variability in the Safety Design of an Automotive Hall Effect Sensor

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Towards Managing Variability in the Safety Design of an Automotive Hall Effect Sensor Dimitri Van) as the main devel- opment process for an automotive Hall Effect sensor. This versatile component is integrated for every automotive application in which the sensor is to be used. In addition, no support is given

  3. Complying with Law for RE in the Automotive Domain Birgit Penzenstadler

    E-Print Network [OSTI]

    Complying with Law for RE in the Automotive Domain Birgit Penzenstadler penzenst, Germany Abstract The automotive industry is concerned with develop- ing large and complex embedded systems the automotive industry performs require- ments engineering in order to comply with government laws

  4. Kinetic Part-Feeding Models for Assembly Lines in Automotive Industries

    E-Print Network [OSTI]

    Noelle, Sebastian

    Kinetic Part-Feeding Models for Assembly Lines in Automotive Industries Michael Herty, Lena.ziegler@daimler.com. #12;KINETIC PART­FEEDING MODELS FOR ASSEMBLY LINES IN AUTOMOTIVE INDUSTRIES MICHAEL HERTY, LENA in automotive industries by models based on partial differential equations.The basic idea consists

  5. Pricing Innovation: State of the Art and Automotive Applications Professor Jean-Jacques CHANARON*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Pricing Innovation: State of the Art and Automotive Applications Professor Jean-Jacques CHANARON as Tongji University in Shanghai, China. He is a well-recognized expert in the automotive industry. He manufacturers. He is a member of the French Society of Automotive Engineers (SIA) and the GERPISA International

  6. Comparison of Global Optimization Methods for Drag Reduction in the Automotive Industry

    E-Print Network [OSTI]

    Dumas, Laurent

    Comparison of Global Optimization Methods for Drag Reduction in the Automotive Industry Laurent reduction problems in the automotive industry. All the methods consist in improving classical genetic of a GA is reduced by a factor up to 7. 1 Introduction The topic of drag reduction in the automotive

  7. An approach for improving Fault-Tolerance in Automotive Modular Embedded Software*

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An approach for improving Fault-Tolerance in Automotive Modular Embedded Software* * This work has transportation research programme PREDIT) focused on robustness of executive software in critical automotive.killijian}@laas.fr Abstract Error detection and error recovery mechanism must be carefully selected in automotive embedded

  8. Meeting the Embedded Design Needs of Automotive Applications Wayne Lyons, ARM

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Meeting the Embedded Design Needs of Automotive Applications Wayne Lyons, ARM Abstract The importance of embedded systems in driving innovation in automotive applications continues to grow to demonstrate the challenges of designing for real-time automotive systems. 1 Introduction The dominant trend

  9. A novel taxonomy for gestural interaction techniques: considerations for automotive environments

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    A novel taxonomy for gestural interaction techniques: considerations for automotive environments to analyze the applicability of these techniques on automotive environment. The taxon- omy plots a gestural into automotive environment rise the necessity to analyze gestural interaction technique from their cognitive load

  10. New Trends for Pyrotechnic Automotive Safety in the European Union Lionel Aufauvre

    E-Print Network [OSTI]

    Boyer, Edmond

    New Trends for Pyrotechnic Automotive Safety in the European Union Lionel Aufauvre INERIS finds pyrotechnic components of automotive safety equipment such as gas generators or igniters. In the very fast growing market of automotive safety industry, regulations might be perceived as non

  11. Multi-source and multicore automotive ECUs -OS protection mechanisms and scheduling

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Multi-source and multicore automotive ECUs - OS protection mechanisms and scheduling Nicolas Navet,{firstname.name}@realtimeatwork.com Abstract--As the demand for computing power is quickly increasing in the automotive domain, car the respect of the safety requirements such as the ISO 26262 and the implementation of other automotive use

  12. Localization of objects in automotive scenes with spatial and temporal information

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Localization of objects in automotive scenes with spatial and temporal information Capucine LEGRAND 1,2, Vincent FREMONT 2 and Fr´ed´eric LARGE 1 Abstract-- In the context of automotive driving compatible with automotive application computation times. The remainder of this paper is as follows: section

  13. A Hybrid Feedback Regulator Approach to Control an Automotive Suspension System

    E-Print Network [OSTI]

    Antsaklis, Panos

    A Hybrid Feedback Regulator Approach to Control an Automotive Suspension System Xenofon D synthe- sis approach using an automotive suspension system. Discrete abstrac- tions are used control synthesis is presented and an example of an automotive suspension system is used to illus- trate

  14. CTMCONTROL: Addressing the MC/DC Objective for Safety-Critical Automotive Software

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    CTMCONTROL: Addressing the MC/DC Objective for Safety-Critical Automotive Software Anila Mjeda.mjeda,mike.hinchey}@lero.ie Abstract. We propose a method tailored to the requirements of safety-critical embedded automotive software/DC) objective for automotive safety-critical software. CTMCONTROL is validated via a controlled experiment which

  15. Verification of automotive networks -what to expect (and not expect) from each

    E-Print Network [OSTI]

    Navet, Nicolas

    Verification of automotive networks - what to expect (and not expect) from each technique Nicolas NAVET ­ nicolas.navet@uni.lu "Automotive Bus systems + Ethernet" Stuttgart, Germany, December 9-11, 2013. December 09, 2013 #12;1 Outline - 212/11/2013Automotive Bus systems + Ethernet Early-stage timing

  16. Measuring the Intangible Aspects of the Manufacturing Strategy A Case study from the Automotive Industry

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    1 Measuring the Intangible Aspects of the Manufacturing Strategy ­ A Case study from the Automotive on principles from different paradigms. From our case in the automotive industry we see that the company should, manufacturing strategy, automotive industry 1 Introduction The network- and knowledge-based economy

  17. Incremental Development for Automotive Software in AutoMoDe Andreas Bauer1

    E-Print Network [OSTI]

    Braun, Peter

    Incremental Development for Automotive Software in AutoMoDe Andreas Bauer1 Jan Romberg1 Bernhard Validas AG 3 ETAS GmbH 4 PMSF IT Consulting 5 Robert Bosch GmbH Abstract Automotive software development. To facilitate the design and evolution of heterogeneous automotive software, suitable views for each level

  18. Date: 30 Octobre 2014........ PAGE 1 OF 2 CONFIDENTIEL CONTINENTAL Automotive S.A.

    E-Print Network [OSTI]

    Dobigeon, Nicolas

    Date: 30 Octobre 2014........ PAGE 1 OF 2 CONFIDENTIEL CONTINENTAL Automotive S.A. Proposition de 2015 Rémunération : 800 par mois (montant brut mensuel) Lieu: Continental Automotive France, 1 avenue.daurenjou@continental-corporation.com #12;Date: 30 Octobre 2014........ PAGE 2 OF 2 CONFIDENTIEL CONTINENTAL Automotive S.A. Internship

  19. Application of Aspect-based Modeling and Weaving for Complexity Reduction in Development of Automotive

    E-Print Network [OSTI]

    Schmidt, Douglas C.

    of Automotive Distributed Real-time Embedded System Andrey Nechypurenko, Egon Wuchner Siemens AG, Corporate the stringent resource and costs constraints in de- veloping modern automotive embedded electronic systems collaboration model, and timing models. An emerging trend in automotive sys- tems is to apply Model

  20. Automotive is the domain of `self propelled, motorised vehicles'. Hence, although the car is dominant, the

    E-Print Network [OSTI]

    Automotive is the domain of `self propelled, motorised vehicles'. Hence, although the car is dominant, the scope is much wider. And because Automotive Design is always considered in its mobility context, it widens even further. The automotive industry is one of the most complex ones, in terms

  1. Haptic Models of an Automotive Turn-Signal Switch: Identification and Playback Results

    E-Print Network [OSTI]

    Hollerbach, John M.

    Haptic Models of an Automotive Turn-Signal Switch: Identification and Playback Results Mark B of virtual environments. This paper addresses the problem of modeling the feel of an automotive turn- signal would require accurate models of the primary automotive controls, including the steering wheel, gear

  2. Automatic Parameter Identification in FlexRay based Automotive Communication Networks

    E-Print Network [OSTI]

    Automatic Parameter Identification in FlexRay based Automotive Communication Networks Eric-Triggered Architectures are being introduced in safety-critical automotive systems ("X-by-wire") to cope with the growing and explore its limitations. I. INTRODUCTION Nowadays most automotive innovations stem from elec- tronic

  3. HW Componentizing Kernel: A New Approach to address the Mega Complexity of Future Automotive CPS

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    HW Componentizing Kernel: A New Approach to address the Mega Complexity of Future Automotive CPS of CPS (Cyber Physical System). However, current software development process in the automotive industry automotive software devel- opment process in the perspective of CPS and proposes a new kernel-based approach

  4. Online Center of Gravity Estimation in Automotive Vehicles using Multiple Models and Switching

    E-Print Network [OSTI]

    Duffy, Ken

    Online Center of Gravity Estimation in Automotive Vehicles using Multiple Models and Switching and switching for realtime estimation of center of gravity (CG) position in automotive vehicles. The method utilizes simple linear vehicle models and assumes availability of standard stock automotive sensors. We

  5. Robotics and Computer Integrated Manufacturing 19 (2003) 7987 Vision-guided fixtureless assembly of automotive components

    E-Print Network [OSTI]

    Bone, Gary

    of automotive components Gary M. Bonea, *, David Capsonb a Department of Mechanical Engineering, Mc with sensor-guided robots. In this paper, the development of a vision-guided RFA workcell for automotive automotive body components. r 2003 Elsevier Science Ltd. All rights reserved. Keywords: Automated assembly

  6. Comparative Application of Real-Time Verification Methods to an Automotive Architecture

    E-Print Network [OSTI]

    Ulm, Universität

    Comparative Application of Real-Time Verification Methods to an Automotive Architecture Steffen especially to distributed automotive architectures. The high connectivity of different control units forms approaches for the verification of real-time behavior of an automotive architecture are compared. Two tools

  7. Security of embedded automotive networks: state of the art and a research proposal

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Security of embedded automotive networks: state of the art and a research proposal Ivan Studnia1 intrusion detection system for CAN-based automotive networks. 1 Introduction The embedding of electronic) is the most used protocol in automotive networks, existing in several standards according to one's needs

  8. Robotic Tracking and Marking of Surface Shape Defects on Moving Automotive Panels

    E-Print Network [OSTI]

    Payeur, Pierre

    Robotic Tracking and Marking of Surface Shape Defects on Moving Automotive Panels Valentin Borsu defects for quality control in the automotive industry. In order to integrate a defects detection station. INTRODUCTION Quality control in the automotive industry is essential in order to ensure that the products meet

  9. Features Extraction from Point Clouds for Automated Detection of Deformations on Automotive Body Parts

    E-Print Network [OSTI]

    Payeur, Pierre

    Features Extraction from Point Clouds for Automated Detection of Deformations on Automotive Body with the problem of detecting unwanted deformations on automotive body part in mind, where feature line detection, surface map analysis, deformation detection, pattern recognition, quality control, automotive body parts

  10. Verifiable Active Safety for Automotive Cyber-Physical Systems with Humans in the Loop

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Verifiable Active Safety for Automotive Cyber-Physical Systems with Humans in the Loop Francesco-6925 A recent trend in the automotive industry is the rapid inclusion of electronics, computers and controls that focus entirely on improved functionality and overall system robustness. This makes the automotive sector

  11. Domain Controlled Architecture A New Approach for Large Scale Software Integrated Automotive Systems

    E-Print Network [OSTI]

    Kühnhauser, Winfried

    Domain Controlled Architecture A New Approach for Large Scale Software Integrated Automotive Scale Software Integration, LSSI, Automotive Real Time, Multi-core, Many-core, Embedded Automo- tive mobility domain. The automotive in- dustry is confronted with a rising system complexity and several

  12. Computer Aided Design of Automotive Finishes Gary Meyer and Clement Shimizu

    E-Print Network [OSTI]

    Minnesota, University of

    Computer Aided Design of Automotive Finishes Gary Meyer and Clement Shimizu Department of Computer The principles of computer aided design were applied to the creation of new automotive finishes. A computer of an automotive paint and visualize the appearance of that paint on a three dimensional surface. The program gives

  13. Taming Uncertainties in Wireless Messaging for Automotive Cyber-Physical-Systems

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Taming Uncertainties in Wireless Messaging for Automotive Cyber-Physical-Systems Hongwei Zhang Wireless networking for automotive CPS Today's vehicles are much more than a mechanical device, and complex to the scalability of vehicular communication system, which is a basic element of automotive cyber-physical systems

  14. Planning of Low-Cost 77-GHz Radar Transceivers for Automotive Applications

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Planning of Low-Cost 77-GHz Radar Transceivers for Automotive Applications H. Ameri, A. Attaran & M. Moghavvemi University ofMalaya INTRODUCTION The use of electronics in the automotive industry will reach (or the position and speed as with other components used in the automotive industry, radars will find widespread

  15. 3TU. STAN ACKERMANS INSTITUTESchool for Technological Design Automotive Systems Design

    E-Print Network [OSTI]

    Franssen, Michael

    3TU. STAN ACKERMANS INSTITUTESchool for Technological Design Automotive Systems Design Post at the University of Halmstad, Sweden, I was looking for a way to rapidly gain more knowledge of automotive systems enables me to network actively with automotive partners, as I work on industry assignments from various

  16. The Effects of Different Input Excitation on the Dynamic Characterization of an Automotive Shock Absorber

    E-Print Network [OSTI]

    Rao, Mohan

    of an Automotive Shock Absorber Darin Kowalski, Mohan D. Rao Michigan Technological University, Houghton MI 49931 49931 Dave Griffiths Ford Motor Company, Dearborn MI 48121 Copyright © 2001 Society of Automotive Engineers, Inc. ABSTRACT This paper deals with the dynamic characterization of an automotive shock absorber

  17. Model-based Control of Automotive Engines and After-treatment Devices

    E-Print Network [OSTI]

    Model-based Control of Automotive Engines and After-treatment Devices N. Petit MINES Paris on automotive vehicle emissions have steadily increased over the last decades, embedded control technology relating to the field of automotive engines. It exposes several milestones that have been identified

  18. AUTOMOTIVE POWERTRAIN CONTROL A SURVEY Jeffrey A. Cook, Jing Sun, Julia H. Buckland, Ilya V. Kolmanovsky,

    E-Print Network [OSTI]

    Peng, Huei

    AUTOMOTIVE POWERTRAIN CONTROL A SURVEY Jeffrey A. Cook, Jing Sun, Julia H. Buckland, Ilya V, Michigan, 48109, U.S.A. (e-mail: jingsun@umich.edu). AUTOMOTIVE POWERTRAIN CONTROL A SURVEY Jeffrey A This paper surveys recent and historical publications on automotive powertrain control. Control

  19. Journal of Embedded Computing 2 (2006) 93102 93 Frame packing algorithms for automotive

    E-Print Network [OSTI]

    Navet, Nicolas

    Journal of Embedded Computing 2 (2006) 93­102 93 IOS Press Frame packing algorithms for automotive Vandoeuvre-l `es-Nancy, France Abstract. The set of frames exchanged in automotive applications must meet two proposes algorithms for building off-line the set of frames in automotive communica- tions with the two

  20. Trends in Automotive Communication Systems NICOLAS NAVET, YEQIONG SONG, FRANOISE SIMONOT-LION, AND CDRIC WILWERT

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Trends in Automotive Communication Systems NICOLAS NAVET, YEQIONG SONG, FRAN?OISE SIMONOT imposed on the commu- nication systems. Then, a comprehensive review of the most widely used automotive networks, as well as the emerging ones, is given. Next, the current efforts of the automotive industry

  1. Fine-grained Simulation in the Design of Automotive Communication Systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fine-grained Simulation in the Design of Automotive Communication Systems Aurélien Monot1 and di- mensioning automotive embedded networks are worst-case schedulability analysis and simulation architectures in the automotive domain are defined years in advance and their real- time properties need

  2. Towards Verified Automotive Software J. Botaschanjan, L. Kof, C. Kuhnel, M. Spichkova

    E-Print Network [OSTI]

    Towards Verified Automotive Software J. Botaschanjan, L. Kof, C. K¨uhnel, M. Spichkova Institut f Automotive software is one of the most challenging fields of software engineering: it must meet real time of automotive software, as for example in the case of drive-by-wire, automated driving and driver assitents

  3. TABLE I. AUTOMOTIVE TEMPERATURE RANGES [1] In-transmission 150-200C

    E-Print Network [OSTI]

    Tolbert, Leon M.

    electronics modules in HEVs. I. INTRODUCTION Previously reported high-temperature automotive electronic-voltage integrated gate driver circuit for automotive applications. In all power electronic circuits, a gate driverTABLE I. AUTOMOTIVE TEMPERATURE RANGES [1] In-transmission 150-200°C On-engine 150-200°C On Wheel

  4. Modelling and Control of an Inverted Pendulum Turbine

    E-Print Network [OSTI]

    Modelling and Control of an Inverted Pendulum Turbine Sergi Rotger Griful Kongens Lyngby 2012 IMM. In this project the feasibility of a new kind of wind turbine is studied. This thesis deals with the achievement of getting a proper mathematical model of a new kind of wind turbine, called the inverted pendulum turbine

  5. Mono inverter Multi parallel PMSM -Structure and Control strategy

    E-Print Network [OSTI]

    Boyer, Edmond

    Mono inverter Multi parallel PMSM - Structure and Control strategy Damien Bidarta , Maria Pietrzak a new and original Mono inverter Multi parallel Permanent Magnet Synchronous Motor (PMSM) system. Experimental results are given for a system with 2 PMSM plugged in parallel. The proposed solution can however

  6. A Segmented Drive Inverter Topology with a Small DC Bus Capacitor

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

    weight for inverters. Currently, it contributes - Cost and weight, up to 23% of an inverter - Volume, up to 30% of an inverter * Ability of film capacitors to operate at higher...

  7. Left invertibility, flatness and identifiability of switched linear dynamical systems: a framework

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Left invertibility, flatness and identifiability of switched linear dynamical systems: a framework invertibility and flatness, dynamical systems are structurally equivalent to some specific cryptographic invertibility, flatness and identifiability of discrete- time switched linear systems are investigated

  8. A High-Frequency Resonant Inverter Topology With Low-Voltage Stress

    E-Print Network [OSTI]

    Rivas, Juan M.

    This paper presents a new switched-mode resonant inverter, which we term the inverter, that is well suited to operation at very high frequencies and to rapid on/off control. Features of this inverter topology include low ...

  9. Introduction Inverted index Processing Boolean queries Query optimization Web Search and Text Mining

    E-Print Network [OSTI]

    Gray, Alexander

    Introduction Inverted index Processing Boolean queries Query optimization Web Search and Text Institute of Technology, College of Computing 2011 Gray: Boolean Retrieval 1 / 39 #12;Introduction Inverted index Processing Boolean queries Query optimization Overview 1 Introduction 2 Inverted index 3

  10. Does the world need yet another solar inverter concept? Intermediate size inverters have grown; now there is a

    E-Print Network [OSTI]

    King, Roger

    of the inverter with respect to the economics of solar generated electricity. Nextronex Energy Systems LLC, formed and specifiers, and concluded that the world would benefit from yet another solar inverter concept, one that we a critical interest in the revenue stream, uptime, and operation and maintenance cost of solar projects

  11. Automotive Research Center A U.S. Army RDECOM Center of Excellence for Modeling and Simulation of Ground

    E-Print Network [OSTI]

    Papalambros, Panos

    Automotive Research Center A U.S. Army RDECOM Center of Excellence for Modeling and Simulation by the Automotive Research Center Sponsored by U.S. Army Research, Development and Engineering Command (RDECOM) U.S. Army Tank Automotive Research, Development and Engineering Center (TARDEC) National Automotive Center

  12. MODIFYING AN INVERTED LABORATORY MICROSCOPE FOR RAMAN Presented in Partial Fulfillment of the Requirements for

    E-Print Network [OSTI]

    MODIFYING AN INVERTED LABORATORY MICROSCOPE FOR RAMAN MICROSCOPY A Thesis Presented in Partial modifications a spectroscopic imaging instrument, a Raman microscope, can be constructed from a common inverted

  13. High-Temperature High-Power Packaging Techniques for HEV Traction Applications

    SciTech Connect (OSTI)

    Barlow, F.D.; Elshabini, A.

    2006-11-30T23:59:59.000Z

    A key issue associated with the wider adoption of hybrid-electric vehicles (HEV) and plug in hybrid-electric vehicles (PHEV) is the implementation of the power electronic systems that are required in these products [1]. To date, many consumers find the adoption of these technologies problematic based on a financial analysis of the initial cost versus the savings available from reduced fuel consumption. Therefore, one of the primary industry goals is the reduction in the price of these vehicles relative to the cost of traditional gasoline powered vehicles. Part of this cost reduction must come through optimization of the power electronics required by these vehicles. In addition, the efficiency of the systems must be optimized in order to provide the greatest range possible. For some drivers, any reduction in the range associated with a potential HEV or PHEV solution in comparison to a gasoline powered vehicle represents a significant barrier to adoption and the efficiency of the power electronics plays an important role in this range. Likewise, high efficiencies are also important since lost power further complicates the thermal management of these systems. Reliability is also an important concern since most drivers have a high level of comfort with gasoline powered vehicles and are somewhat reluctant to switch to a less proven technology. Reliability problems in the power electronics or associated components could not only cause a high warranty cost to the manufacturer, but may also taint these technologies in the consumer's eyes. A larger vehicle offering in HEVs is another important consideration from a power electronics point of view. A larger vehicle will need more horsepower, or a larger rated drive. In some ways this will be more difficult to implement from a cost and size point of view. Both the packaging of these modules and the thermal management of these systems at competitive price points create significant challenges. One way in which significant cost reduction of these systems could be achieved is through the use of a single coolant loop for both the power electronics as well as the internal combustion engine (ICE) [2]. This change would reduce the complexity of the cooling system which currently relies on two loops to a single loop [3]. However, the current nominal coolant temperature entering these inverters is 65 C [3], whereas a normal ICE coolant temperature would be much higher at approximately 100 C. This change in coolant temperature significantly increases the junction temperatures of the devices and creates a number of challenges for both device fabrication and the assembly of these devices into inverters and converters for HEV and PHEV applications. With this change in mind, significant progress has been made on the use of SiC devices for inverters that can withstand much higher junction temperatures than traditional Si based inverters [4,5,6]. However, a key problem which the single coolant loop and high temperature devices is the effective packaging of these devices and related components into a high temperature inverter. The elevated junction temperatures that exist in these modules are not compatible with reliable inverters based on existing packaging technology. This report seeks to provide a literature survey of high temperature packaging and to highlight the issues related to the implementation of high temperature power electronic modules for HEV and PHEV applications. For purposes of discussion, it will be assumed in this report that 200 C is the targeted maximum junction temperature.

  14. automotive composite materials: Topics by E-print Network

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

    automotive composite materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 ORNLTM-2000283 THE...

  15. The Progressive Insurance Automotive X PRIZE Education Program

    SciTech Connect (OSTI)

    Robyn Ready

    2011-12-31T23:59:59.000Z

    The Progressive Insurance Automotive X PRIZE Education Program conducted education and outreach activities and used the competition's technical goals and vehicle demonstrations as a means of attracting students and the public to learn more about advanced vehicle technologies, energy efficiency, climate change, alternative fuels, and the science and math behind efficient vehicle development. The Progressive Insurance Automotive X PRIZE Education Program comprised three integrated components that were designed to educate the general public and create a multi-tiered initiative to engage students and showcase the 21st century skills students will need to compete in our global economy: teamwork, creativity, strong literacy, math and science skills, and innovative thinking. The elements included an Online Experience, a National Student Contest, and in person education events and activites. The project leveraged online connections, strategic partnerships, in-classroom, and beyond-the-classroom initiatives, as well as mainstream media. This education program supported by the U.S. Department of Energy (DOE) also funded the specification of vehicle telemetry and the full development and operation of an interactive online experience that allowed internet users to follow the Progressive Insurance Automotive X PRIZE vehicles as they performed in real-time during the Progressive Insurance Automotive X PRIZE competition events.

  16. Vehicle Electronics Exponential growth in automotive electronics as

    E-Print Network [OSTI]

    Duchowski, Andrew T.

    1 Vehicle Electronics #12; Exponential growth in automotive electronics as measured by: 2 ­ Number from now: Factor of 10,000 Vehicle Electronics ­ Strategic Drivers #12;Vehicle Electronics ­ Strategic probability of causing a fatal accident translates to thousands of fatal accidents in a popular vehicle model

  17. automotive lightweighting materials: Topics by E-print Network

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

    automotive lightweighting materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Materials Flow...

  18. automotive materials: Topics by E-print Network

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

    automotive materials First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Master Thesis Defining Materials...

  19. GATE Center for Automotive Fuel Cell Systems at Virginia Tech

    SciTech Connect (OSTI)

    Douglas Nelson

    2011-05-31T23:59:59.000Z

    The Virginia Tech GATE Center for Automotive Fuel Cell Systems (CAFCS) achieved the following objectives in support of the domestic automotive industry: ? Expanded and updated fuel cell and vehicle technologies education programs; ? Conducted industry directed research in three thrust areas ?? development and characterization of materials for PEM fuel cells; performance and durability modeling for PEM fuel cells; and fuel cell systems design and optimization, including hybrid and plug-in hybrid fuel cell vehicles; ? Developed MS and Ph.D. engineers and scientists who are pursuing careers related to fuel cells and automotive applications; ? Published research results that provide industry with new knowledge which contributes to the advancement of fuel cell and vehicle systems commercialization. With support from the Dept. of Energy, the CAFCS upgraded existing graduate course offerings; introduced a hands-on laboratory component that make use of Virginia Tech??s comprehensive laboratory facilities, funded 15 GATE Fellowships over a five year period; and expanded our program of industry interaction to improve student awareness of challenges and opportunities in the automotive industry. GATE Center graduate students have a state-of-the-art research experience preparing them for a career to contribute to the advancement fuel cell and vehicle technologies.

  20. Role of Friction in Materials Selection for Automotive Applications

    SciTech Connect (OSTI)

    Blau, Peter Julian [ORNL

    2013-01-01T23:59:59.000Z

    This is an invited article for a special issue of the ASM International monthly magazine that concerns "Automotive Materials and Applications." The article itself overviews frictional considerations in material selection for automobiles. It discusses implications for energy efficiency (engine friction) and safety (brakes) among other topics.

  1. Intergranular fracture in UO{sub 2}: derivation of traction-separation law from atomistic simulations

    SciTech Connect (OSTI)

    Zhang, Yongfeng; Millett, P.C.; Tonks, M.R.; Bai, Xian-Ming; Biner, S.B. [Fuels Modeling and Simulation Department, Idaho National Laboratory - INL, Idaho Falls, ID 83415 (United States)

    2013-07-01T23:59:59.000Z

    In this study, the intergranular fracture behavior of UO{sub 2} was studied by molecular dynamics simulations using the Basak potential. In addition, the constitutive traction-separation law was derived from atomistic data using the cohesive-zone model. In the simulations a bicrystal model with the (100) symmetric tilt ?5 grain boundaries was utilized. Uniaxial tension along the grain boundary normal was applied to simulate Mode-I fracture. The fracture was observed to propagate along the grain boundary by micro-pore nucleation and coalescence, giving an overall intergranular fracture behavior. Phase transformations from the Fluorite to the Rutile and Scrutinyite phases were identified at the propagating crack tips. These new phases are metastable and they transformed back to the Fluorite phase at the wake of crack tips as the local stress concentration was relieved by complete cracking. Such transient behavior observed at atomistic scale was found to substantially increase the energy release rate for fracture. Insertion of Xe gas into the initial notch showed minor effect on the overall fracture behavior. (authors)

  2. Intergranular fracture in UO2: derivation of traction-separation law from atomistic simulations

    SciTech Connect (OSTI)

    Yongfeng Zhang; Paul C Millett; Michael R Tonks; Xian-Ming Bai; S Bulent Biner

    2013-10-01T23:59:59.000Z

    In this study, the intergranular fracture behavior of UO2 was studied by molecular dynamics simulations using the Basak potential. In addition, the constitutive traction-separation law was derived from atomistic data using the cohesive-zone model. In the simulations a bicrystal model with the (100) symmetric tilt E5 grain boundaries was utilized. Uniaxial tension along the grain boundary normal was applied to simulate Mode-I fracture. The fracture was observed to propagate along the grain boundary by micro-pore nucleation and coalescence, giving an overall intergranular fracture behavior. Phase transformations from the Fluorite to the Rutile and Scrutinyite phases were identified at the propagating crack tips. These new phases are metastable and they transformed back to the Fluorite phase at the wake of crack tips as the local stress concentration was relieved by complete cracking. Such transient behavior observed at atomistic scale was found to substantially increase the energy release rate for fracture. Insertion of Xe gas into the initial notch showed minor effect on the overall fracture behavior.

  3. Electric machine and current source inverter drive system

    SciTech Connect (OSTI)

    Hsu, John S

    2014-06-24T23:59:59.000Z

    A drive system includes an electric machine and a current source inverter (CSI). This integration of an electric machine and an inverter uses the machine's field excitation coil for not only flux generation in the machine but also for the CSI inductor. This integration of the two technologies, namely the U machine motor and the CSI, opens a new chapter for the component function integration instead of the traditional integration by simply placing separate machine and inverter components in the same housing. Elimination of the CSI inductor adds to the CSI volumetric reduction of the capacitors and the elimination of PMs for the motor further improve the drive system cost, weight, and volume.

  4. Inverted Metamorphic Multijunction (IMM) Cell Processing Instructions

    SciTech Connect (OSTI)

    Duda, A.; Ward, S.; Young, M.

    2012-02-01T23:59:59.000Z

    This technical report details the processing schedule used to fabricate Inverted Metamorphic Multijunction (IMM) concentrator solar cells at The National Renewable Energy Laboratory (NREL). These devices are used as experimental test structures to support the research at NREL that is focused on increasing the efficiency of photovoltaic power conversion. They are not intended to be devices suitable for deployment in working concentrator systems primarily because of heat sinking issues. The process schedule was developed to be compatible with small sample sizes and to afford relatively rapid turn-around times, in support of research efforts. The report describes the use of electro deposition of gold for both the back and front contacts. Electro-deposition is used because of its rapid turn around time and because it is a benign metallization technique that is seldom responsible for damage to the semiconductors. The layer transfer technique is detailed including the use of a commercially available adhesive and the etching away of the parent gallium arsenide substrate. Photolithography is used to define front contact grids as well as the mesa area of the cell. Finally, the selective wet chemical etchant system is introduced and its use to reveal the back contact is described.

  5. Development of a high-efficiency solar micro-inverter

    E-Print Network [OSTI]

    Hayman, Alexander Khaled

    2009-01-01T23:59:59.000Z

    In typical solar power installations, multiple modules are connected to the grid through a single high-power inverter. However, an alternative approach is to connect each solar module directly to the grid through a ...

  6. Series Resonant Inverter with Contactless Transformers for Multiple LED Lamps.

    E-Print Network [OSTI]

    Cheng, Shuen-Wen

    2013-01-01T23:59:59.000Z

    ??A half-bridge series-resonant inverter adopted to realize the quasi current source and the constant current source with a number of contactless transformers in series for (more)

  7. Project Invert WP6 Case Studies Case studies

    E-Print Network [OSTI]

    , Greece · FEWE ­ Polish Foundation for Energy Efficiency, Poland · FhG-ISI ­ Fraunhofer Institute for Systems and Innovation Research, Germany Contact/Information: web-site: www.invert.at or directly

  8. Stabilizing the dual inverted pendulum : a practical approach

    E-Print Network [OSTI]

    Barton, Taylor Wallis

    2008-01-01T23:59:59.000Z

    A dual inverted pendulum system, consisting of two individual pendulums of different lengths on a single cart, was fully designed and implemented as a demonstration of classical control theory. This document contains an ...

  9. Triple inverter pierce oscillator circuit suitable for CMOS

    DOE Patents [OSTI]

    Wessendorf; Kurt O. (Albuquerque, NM)

    2007-02-27T23:59:59.000Z

    An oscillator circuit is disclosed which can be formed using discrete field-effect transistors (FETs), or as a complementary metal-oxide-semiconductor (CMOS) integrated circuit. The oscillator circuit utilizes a Pierce oscillator design with three inverter stages connected in series. A feedback resistor provided in a feedback loop about a second inverter stage provides an almost ideal inverting transconductance thereby allowing high-Q operation at the resonator-controlled frequency while suppressing a parasitic oscillation frequency that is inherent in a Pierce configuration using a "standard" triple inverter for the sustaining amplifier. The oscillator circuit, which operates in a range of 10 50 MHz, has applications for use as a clock in a microprocessor and can also be used for sensor applications.

  10. High-Temperature High-Power Packaging Techniques for HEV Traction Applications

    SciTech Connect (OSTI)

    Elshabini, Aicha [University of Idaho; Barlow, Fred D. [University of Idaho

    2006-11-01T23:59:59.000Z

    A key issue associated with the wider adoption of hybrid-electric vehicles (HEV) and plug in hybrid-electric vehicles (PHEV) is the implementation of the power electronic systems that are required in these products. One of the primary industry goals is the reduction in the price of these vehicles relative to the cost of traditional gasoline powered vehicles. Today these systems, such as the Prius, utilize one coolant loop for the engine at approximately 100 C coolant temperatures, and a second coolant loop for the inverter at 65 C. One way in which significant cost reduction of these systems could be achieved is through the use of a single coolant loop for both the power electronics as well as the internal combustion engine (ICE). This change in coolant temperature significantly increases the junction temperatures of the devices and creates a number of challenges for both device fabrication and the assembly of these devices into inverters and converters for HEV and PHEV applications. Traditional power modules and the state-of-the-art inverters in the current HEV products, are based on chip and wire assembly and direct bond copper (DBC) on ceramic substrates. While a shift to silicon carbide (SiC) devices from silicon (Si) devices would allow the higher operating temperatures required for a single coolant loop, it also creates a number of challenges for the assembly of these devices into power inverters. While this traditional packaging technology can be extended to higher temperatures, the key issues are the substrate material and conductor stability, die bonding material, wire bonds, and bond metallurgy reliability as well as encapsulation materials that are stable at high operating temperatures. The larger temperature differential during power cycling, which would be created by higher coolant temperatures, places tremendous stress on traditional aluminum wire bonds that are used to interconnect power devices. Selection of the bond metallurgy and wire bond geometry can play a key role in mitigating this stress. An alternative solution would be to eliminate the wire bonds completely through a fundamentally different method of forming a reliable top side interconnect. Similarly, the solders used in most power modules exhibit too low of a liquidus to be viable solutions for maximum junction temperatures of 200 C. Commonly used encapsulation materials, such as silicone gels, also suffer from an inability to operate at 200 C for extended periods of time. Possible solutions to these problems exist in most cases but require changes to the traditional manufacturing process used in these modules. In addition, a number of emerging technologies such as Si nitride, flip-chip assembly methods, and the elimination of base-plates would allow reliable module development for operation of HEV and PHEV inverters at elevated junction temperatures.

  11. A semi-invertible operator Oseledets theorem Cecilia Gonzalez-Tokman

    E-Print Network [OSTI]

    Quas, Anthony

    A semi-invertible operator Oseledets theorem Cecilia Gonz´alez-Tokman Anthony Quas October 15, 2011 Abstract Semi-invertible multiplicative ergodic theorems establish the existence of an Oseledets splitting for cocycles of non-invertible linear operators (such as transfer operators) over an invertible

  12. INVERTIBILITY IN INFINITE-DIMENSIONAL SPACES CHIA-CHUAN TSENG AND NGAI-CHING WONG

    E-Print Network [OSTI]

    Wong, Ngai-Ching

    INVERTIBILITY IN INFINITE-DIMENSIONAL SPACES CHIA-CHUAN TSENG AND NGAI-CHING WONG Abstract. An interesting result of Doyle and Hocking states that a topological n-manifold is invertible if and only is invertible. We shall also discuss the invertibility of other infinite-dimensional objects as well

  13. High Dynamic Performance Programmed PWM Control of a Multilevel Inverter with Capacitor DC Sources

    E-Print Network [OSTI]

    Tolbert, Leon M.

    High Dynamic Performance Programmed PWM Control of a Multilevel Inverter with Capacitor DC Sources inverter consisting of a stan- dard 3-leg inverter supplied by a DC source and three full H-bridges each reactive voltage to the motor while the standard three leg inverter can supply both reactive and active

  14. Some Classes of Invertible Matrices in GF(2) James S. Plank

    E-Print Network [OSTI]

    Plank, Jim

    Some Classes of Invertible Matrices in GF(2) James S. Plank Adam L. Buchsbaum Technical Report UT Invertible matrices in GF(2) are important for constructing MDS erasure codes. This paper proves that certain classes of matrices in GF(2) are invertible, plus some additional properties about invertible matrices. 1

  15. INVERTIBLE FILTER BANKS ON THE 2-SPHERE B.T. Thomas Yeo Wanmei Ou Polina Golland

    E-Print Network [OSTI]

    Golland, Polina

    INVERTIBLE FILTER BANKS ON THE 2-SPHERE B.T. Thomas Yeo Wanmei Ou Polina Golland Computer Science to the sphere, many key challenges remain. In this paper, we develop conditions for the invertibility be incorpo- rated into the design of self-invertible axis-symmetric wavelets. Self- invertibility

  16. Performance Analysis of a Hybrid Asymmetric Multilevel Inverter for High Voltage Active Power Filter Applications

    E-Print Network [OSTI]

    Catholic University of Chile (Universidad Católica de Chile)

    Performance Analysis of a Hybrid Asymmetric Multilevel Inverter for High Voltage Active Power voltage-source inverters connected in series (known as cascaded hybrid asymmetric multilevel inverter scheme is developed to allow the operation of the inverter modules at different voltages and switching

  17. ADAPTIVE HYSTERESIS CURRENT CONTROL OF INVERTER FOR SOLAR PHOTOVOLTAIC APPLICATIONS

    E-Print Network [OSTI]

    unknown authors

    2011-01-01T23:59:59.000Z

    Abstract Power inverters are used to convert the D.C power produced by the solar photovoltaic cell into AC. This paper presents a novel Adaptive Hysteresis Current Controller to control the inverter, used in the solar photovoltaic cell. The proposed controller is capable of reducing the total harmonic distortion and to provide constant switching frequency. The mathematical model of Photovoltaic array is developed using the Newtons method using the parameter obtained from a commercial photovoltaic data sheet under variable weather conditions, in which the effect of irradiance and temperature are considered. The modeled Photovoltaic array is interfaced with DC-DC boost converter, AC-DC inverter and load. A DC-DC boost converter is used to step up the input DC voltage of the Photovoltaic array while the DC-AC single-phase inverter converts the input DC comes from boost converter into AC. The performance of the proposed controller of inverter is evaluated through MATLAB-Simulation. The results obtained with the proposed algorithm are compared with those obtained when using conventional fixed hysteresis current controller for single-phase photovoltaic inverter in terms of THD and switching frequency.

  18. Transportation Perspectives on Automotive Cyber Physical System: Integrating Hardware-in-the-Loop, Software-in-the-Loop and Human-in-the-Loop Simulations

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    1 Transportation Perspectives on Automotive Cyber Physical System: Integrating Hardware and development environment to evaluate automotive cyber physical system (CPS) as well as its components foundation of the automotive CPS for developing and testing vehicular networking and sensing technologies

  19. Used oil generation and management in the automotive industries

    E-Print Network [OSTI]

    Jhanani S; Kurian Joseph

    Used oil has been classified as hazardous wastes by the Ministry of Environment and Forests, Government of India which demands its proper management to avoid serious threat to the environment and for economic gains. Used oil could be recovered or reprocessed and reused as base oil thus saving the use of virgin oil. This paper presents an assessment of the used oil generation and management practices by the automotive industries located in Chennai and Kancheepuram in Tamilnadu. Used oil generation and management in eight automotive industries in this area were studied by means of questionnaires, direct observations and interviews. Studies were also undertaken for specific used oil generation from the most common process reaming and rolling. The specific used oil generation rate varies from 93-336 L/cubic metre of metal cut depending on whether the industries use online centrifuging system for re-refining. Suggestions for the improvement of the used oil management practices are included in this paper.

  20. The status of ceramic turbine component fabrication and quality assurance relevant to automotive turbine needs

    SciTech Connect (OSTI)

    Richerson, D.W.

    2000-02-01T23:59:59.000Z

    This report documents a study funded by the U.S. Department of Energy (DOE) Office of Transportation Technologies (OTT) with guidance from the Ceramics Division of the United States Automotive Materials Partnership (USAMP). DOE and the automotive companies have funded extensive development of ceramic materials for automotive gas turbine components, the most recent effort being under the Partnership for a New Generation of Vehicles (PNGV) program.

  1. Chemical Kinetic Modeling of Combustion of Automotive Fuels

    SciTech Connect (OSTI)

    Pitz, W J; Westbrook, C K; Silke, E J

    2006-11-10T23:59:59.000Z

    The objectives of this report are to: (1) Develop detailed chemical kinetic reaction models for components of fuels, including olefins and cycloalkanes used in diesel, spark-ignition and HCCI engines; (2) Develop surrogate mixtures of hydrocarbon components to represent real fuels and lead to efficient reduced combustion models; and (3) Characterize the role of fuel composition on production of emissions from practical automotive engines.

  2. Automotive Energy Supply Corporation AESC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWendeGuo Feng Bio Jump to: navigation, searchEnergyAutomotive

  3. Automotive Energy Storage Systems 2015 | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels DataCombinedDepartment2015ServicesEfficiency | Department93AugustAutomotive

  4. Math 28S Invertibility Criteria Fall 2011 Various criteria which are equivalent to a matrix being invertible are at the heart of linear alge-

    E-Print Network [OSTI]

    McClendon, David M.

    Math 28S Invertibility Criteria Fall 2011 Various criteria which are equivalent to a matrix being invertible are at the heart of linear alge- bra, because they combine all the ideas from the subject. A is invertible; 3. {a} is linearly independent; 4. {a} spans F; 5. {a} is a basis for F. Theorem 2 Let A = a b c

  5. E-Print Network 3.0 - automotive control vol Sample Search Results

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

    Control in Automotive Steering Systems Tomy... in control and power electronics and in electric machines are fuelling the application of Electrical Drives... in automobiles....

  6. E-Print Network 3.0 - automotive technologies annual Sample Search...

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

    and technology, fuels... and logistics Better Place, Fiskar Automotive, Mission Motors, Tesla Motors WATER Filtration, purification... STORAGE Grid-scale storage, batteries,...

  7. E-Print Network 3.0 - automotive technology excellence Sample...

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

    BIBLIOGRAPHY ON INTERNAL COMBUSTION ENGINES 1. F. Obert, Internal Combustion Engines and Air Pollution, Intext Educational Publishers, 1973 Summary: , Society of Automotive...

  8. E-Print Network 3.0 - afv automotive technician Sample Search...

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

    New automotive technologies could also be a source of additional... . 12;Alternative Fuel Vehicles (AFV) are vehicles that use the non-petroleum based ... Source: North...

  9. E-Print Network 3.0 - automotive air-conditioning system Sample...

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

    EGTE456 Fundamentals of Heating, Ventilation and Air Conditioning ELEG420 Solar Electric Systems... CIEG351 Transportation Engineering MEEG425 Automotive Powertrain...

  10. E-Print Network 3.0 - advanced automotive propulsion systems...

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

    Intext Educational Publishers, 1973 Summary: and design.) 30. Bosch Automotive ElectricElectronic Systems, published by Robert Bosch GmbH and distributed... by SAE, 1988....

  11. Thermoelectric-Generator-Based DC-DC Conversion Network for Automotive Applications.

    E-Print Network [OSTI]

    Li, Molan

    2011-01-01T23:59:59.000Z

    ?? As waste heat recovering techniques, especially thermoelectric generator (TEG technologies, develop during recent years?its utilization in automotive industry is attempted from many aspects. Previous (more)

  12. E-Print Network 3.0 - automotive industry Sample Search Results

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

    systems for vehicles Assigned date: Feb. 21, 2011 Due date: April 11, 2011 Summary: air conditioning systems used in the automotive industry are based on vapour-compression...

  13. Reinventing the Industrial Heartland: Supply Chain Sustainability and the New Automotive Industry

    E-Print Network [OSTI]

    Wisconsin at Madison, University of

    Reinventing the Industrial Heartland: Supply Chain Sustainability and the New Automotive Industry-Director, WI Electric Machines and Power Electronics Consortium, University of Wisconsin-Madison Challenge: Lee

  14. E-Print Network 3.0 - automotive vehicles uso Sample Search Results

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

    Engineering 2 watcar.uwaterloo.ca 519-888-4555I drivinginnovation Summary: Co-op Work Terms Student Team Partnerships WATERLOO CENTRE FOR AUTOMOTIVE RESEARCH 12;The...

  15. E-Print Network 3.0 - aluminum automotive components Sample Search...

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

    Department, University of New Hampshire Collection: Engineering 24 1 Introduction 1.1 Aluminum alloys Summary: 1 1 Introduction 1.1 Aluminum alloys Automotive industry demands...

  16. E-Print Network 3.0 - automotive door skins Sample Search Results

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

    Summary: challenges in the development of automotive in vehicle software and electric and electronic systems. Amongst... DOORS, test cases in the Rational Quality Manager,...

  17. Vehicle Technologies Office Merit Review 2014: Automotive Low Temperature Gasoline Combustion Engine Research

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia National Laboratories at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about automotive low...

  18. A screening model to explore planning decisions in automotive manufacturing systems under demand uncertainty

    E-Print Network [OSTI]

    Yang, Yingxia

    2009-01-01T23:59:59.000Z

    Large-scale, complex engineering systems, as for automotive manufacturing, often require significant capital investment and resources for systems configuration. Furthermore, these systems operate in environments that are ...

  19. E-Print Network 3.0 - automotive lubricants astm Sample Search...

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

    standards - ISO - ASTM - CEN - Codex - ..... Other - miscellaneous... Automotive parts Tyres for cars - improving "green strength" Re-use of Teflon scrap 12;56 End of part 1...

  20. E-Print Network 3.0 - automotive technology status Sample Search...

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

    This talk will focus on ... Source: Hawaii Natural Energy Institute Collection: Renewable Energy 4 APPLICATIONS OF ADVANCES IN AUTOMOTIVE ELECTRONICS TO RURAL ELECTRIFICATION: THE...

  1. Personal equipment for low seam coal miners. 8. Improved traction rubber boot soles. Report for 1978-82

    SciTech Connect (OSTI)

    Sanders, M.S.; Downing, J.V.

    1982-10-01T23:59:59.000Z

    Based on laboratory and preliminary field tests of off-the-shelf steel-toed rubber boots, a molded sole design was developed to provide increased traction over conventional calendared sole miners boots. The pattern provided sharp edges perpendicular to both lateral and fore-aft slip vectors. The sole was designed to reduce mud caking. An instep lace-up capability was added to better secure the foot inside the boot. A 5-month field evaluation compared the prototype boots to the boots the participants usually wear.

  2. Efficiency consideration of DC link soft-switching inverters for motor drive applications

    SciTech Connect (OSTI)

    Lai, J.S.; Young, R.W.; McKeever, J.W.

    1994-12-31T23:59:59.000Z

    This paper critically evaluates efficiency of soft switching inverters including an actively clamped resonant dc link inverter and a clamped-mode resonant pole inverter. An analytical approach to evaluating efficiency of the clamped-mode soft switching inverter has been developed. The evaluation results are compared with that of the standard pulse-width-modulation (PWM) inverter. A 50-kW induction motor is used as the variable load, and the inverter efficiency is evaluated under different speed and torque conditions. The clamped-mode soft-switching inverter, although eliminating the switching loss, shows poor efficiency over the entire load range. Under low load conditions, the efficiency profile is even worse. The actively clamped resonant dc link inverter shows highest efficiency over the entire speed and torque range. However, its energy saving over the standard PWM inverter is marginal under full load or high speed conditions.

  3. Graduate Automotive Technology Education (GATE) Program: Center of Automotive Technology Excellence in Advanced Hybrid Vehicle Technology at West Virginia University

    SciTech Connect (OSTI)

    Nigle N. Clark

    2006-12-31T23:59:59.000Z

    This report summarizes the technical and educational achievements of the Graduate Automotive Technology Education (GATE) Center at West Virginia University (WVU), which was created to emphasize Advanced Hybrid Vehicle Technology. The Center has supported the graduate studies of 17 students in the Department of Mechanical and Aerospace Engineering and the Lane Department of Computer Science and Electrical Engineering. These students have addressed topics such as hybrid modeling, construction of a hybrid sport utility vehicle (in conjunction with the FutureTruck program), a MEMS-based sensor, on-board data acquisition for hybrid design optimization, linear engine design and engine emissions. Courses have been developed in Hybrid Vehicle Design, Mobile Source Powerplants, Advanced Vehicle Propulsion, Power Electronics for Automotive Applications and Sensors for Automotive Applications, and have been responsible for 396 hours of graduate student coursework. The GATE program also enhanced the WVU participation in the U.S. Department of Energy Student Design Competitions, in particular FutureTruck and Challenge X. The GATE support for hybrid vehicle technology enhanced understanding of hybrid vehicle design and testing at WVU and encouraged the development of a research agenda in heavy-duty hybrid vehicles. As a result, WVU has now completed three programs in hybrid transit bus emissions characterization, and WVU faculty are leading the Transportation Research Board effort to define life cycle costs for hybrid transit buses. Research and enrollment records show that approximately 100 graduate students have benefited substantially from the hybrid vehicle GATE program at WVU.

  4. Improvements in EMC performance of inverter-fed motor drives

    SciTech Connect (OSTI)

    Zhong, E.; Lipo, T.A. [Univ. of Wisconsin, Madison, WI (United States). Dept. of Electrical and Computer Engineering

    1995-11-01T23:59:59.000Z

    An experimental investigation of conducted radio-noise emission from a conventional pulse width modulated (PWM) inverter of medium power feeding an induction motor is described. It is determined that the inverter system generates considerable impulse currents through the power leads feeding the system resulting in serious conducted electromagnetic interference (EMI) problems and significant voltage waveform distortion in the power system. The dominant emission sources in the system are identified. A proposed model of the drive system for the purpose of evaluation of EMI are developed. Several low-cost strategies for improvement in EMC performance of the PWM inverter are then proposed. Experimental results demonstrate that disturbance from the modified system can be dramatically reduced and that the EMC performance of the system has come very close to meeting the IEC CISPR and FCC limits on conducted emissions for digital devices.

  5. Inverter power module with distributed support for direct substrate cooling

    DOE Patents [OSTI]

    Miller, David Harold (San Pedro, CA); Korich, Mark D. (Chino Hills, CA); Ward, Terence G. (Redondo Beach, CA); Mann, Brooks S. (Redondo Beach, CA)

    2012-08-21T23:59:59.000Z

    Systems and/or methods are provided for an inverter power module with distributed support for direct substrate cooling. An inverter module comprises a power electronic substrate. A first support frame is adapted to house the power electronic substrate and has a first region adapted to allow direct cooling of the power electronic substrate. A gasket is interposed between the power electronic substrate and the first support frame. The gasket is configured to provide a seal between the first region and the power electronic substrate. A second support frame is adapted to house the power electronic substrate and joined to the first support frame to form the seal.

  6. Cardiogram: Visual Analytics for Automotive Engineers Michael Sedlmair1, Petra Isenberg2, Dominikus Baur3, Michael Mauerer3,

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Cardiogram: Visual Analytics for Automotive Engineers Michael Sedlmair1, Petra Isenberg2, Dominikus that sup- ports automotive engineers in debugging masses of traces each consisting of millions of recorded-critical networks to be error-free has become a major task and challenge for automotive engi- neers. To overcome

  7. AUSTIN: A tool for Search Based Software Testing for the C Language and its Evaluation on Deployed Automotive Systems

    E-Print Network [OSTI]

    Singer, Jeremy

    Automotive Systems Kiran Lakhotia King's College London, CREST, Strand, London, WC2R 2LS, U.K. kiran of eight non­trivial, real- world C functions drawn from three embedded automotive software modules' to real industrial code from the automotive industry (see Section V) as well as a number of open source

  8. Automotive Research Center A U.S. Army RDECOM Center of Excellence for Modeling and Simulation of Ground

    E-Print Network [OSTI]

    Papalambros, Panos

    Automotive Research Center A U.S. Army RDECOM Center of Excellence for Modeling and Simulation Janet Lyons Organized by the Automotive Research Center Sponsored by U.S. Army Research, Development and Engineering Command (RDECOM) U.S. Army Tank Automotive Research, Development and Engineering Center (TARDEC

  9. Stochastic reduced-order model for an automotive vehicle in presence of numerous local elastic modes in the low-

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Stochastic reduced-order model for an automotive vehicle in presence of numerous local elastic a high modal density in the low-frequency range, such as an automotive vehicle. This type of structure is applied on a complex computational model of an automotive vehicle. 1 INTRODUCTION This work is performed

  10. A Case Study on the Model-Based Design and Integration of Automotive Cyber-Physical Systems

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    A Case Study on the Model-Based Design and Integration of Automotive Cyber-Physical Systems Di--Cyber-physical systems (CPS), such as automotive systems, are very difficult to design due to the tight interactions of an integrated automotive control system. The system is composed of two independently designed controllers

  11. Why Process-Orientation is Scarce: An Empirical Study of Process-oriented Information Systems in the Automotive Industry

    E-Print Network [OSTI]

    Ulm, Universität

    in the Automotive Industry Bela Mutschler, Johannes Bumiller DaimlerChrysler Research & Technology P.O. Box 2360 the reasons for this drawback, we con- ducted a case study in the automotive domain and a survey among 79 in this context concerns the alignment of information systems (IS) and business processes [6]. In the automotive

  12. Time-bounded Adaptation for Automotive System Software Serena Fritsch, Aline Senart Douglas C. Schmidt Siobhn Clarke

    E-Print Network [OSTI]

    Schmidt, Douglas C.

    Time-bounded Adaptation for Automotive System Software Serena Fritsch, Aline Senart Douglas C. This paper provides three contributions to the study of time-bounded adaptation for automotive system software. First, we categorise automotive systems with respect to re- quirements for dynamic software

  13. Automotive Cyber Physical Systems in the Context of Human Mobility Daniel Work, Alexandre Bayen, and Quinn Jacobson

    E-Print Network [OSTI]

    Automotive Cyber Physical Systems in the Context of Human Mobility Daniel Work, Alexandre Bayen with other technologies. In the larger context of human mobility, the automotive CPS must become more open in the surrounding physical environment. II. FUNDAMENTAL LIMITATIONS OF THE EXISTING AUTOMOTIVE CYBER PHYSICAL SYSTEM

  14. Abstract--The development of power electronics in the field of transportations (automotive, aeronautics) requires the use of

    E-Print Network [OSTI]

    1 Abstract-- The development of power electronics in the field of transportations (automotive and safety of complex systems (automotive, aeronautics, space) [15], [1]. Particularly, in the case of transportations systems (automotive and aeronautics for example), the large number of loads requires the use

  15. Research on Calculation Method of Period and Deadline of Frame in Automotive Electronic and Information Integrated Control System

    E-Print Network [OSTI]

    Boyer, Edmond

    Research on Calculation Method of Period and Deadline of Frame in Automotive Electronic control, it is necessary to develop AEIICS (Automotive Electronic and Information Integrated Control-Words: Automotive electronic; In-vehicle network; Networked control; Temporal characteristic; Real-time; GCRT 1

  16. NETCARBENCH: A BENCHMARK FOR TECHNIQUES AND TOOLS USED IN THE DESIGN OF AUTOMOTIVE

    E-Print Network [OSTI]

    Navet, Nicolas

    NETCARBENCH: A BENCHMARK FOR TECHNIQUES AND TOOLS USED IN THE DESIGN OF AUTOMOTIVE COMMUNICATION and configuration of automotive communication systems. For instance, typical objectives are the minimization General Public License. 1. INTRODUCTION Context. With the extensive use of electronics, in- vehicle

  17. Company Profile Mobileye is the leading provider of automated driver assistance technologies to the automotive industry.

    E-Print Network [OSTI]

    Adler, Joan

    leading European car manufacturers. Additional OEMs and Tier 1 suppliers have Mobileye evaluation systems computers and at a fraction of the cost. EyeQ meets automotive cabin grade qualification requirements. Agreements have already been signed with several automotive manufacturers and Tier-1 suppliers

  18. Basics of Advanced Software Systems Static cyclic scheduling on automotive Electronic Control Units (ECU)

    E-Print Network [OSTI]

    Navet, Nicolas

    Basics of Advanced Software Systems Static cyclic scheduling on automotive Electronic Control Units Systems ­ Coursework ­ March 9, 2012. lic scheduling on automotive Electronic Control Units (ECU) (nicolas - Name, - Execution time, - Period of execution, - First activation date, also cal period. The scheduling

  19. 2001-01-0308 FMEA-based Design for Remanufacture using Automotive-

    E-Print Network [OSTI]

    Shu, Lily H.

    2001-01-0308 FMEA-based Design for Remanufacture using Automotive- Remanufacturer Data A. Lam, M the development of a Failure Modes and Effects Analysis (FMEA) modified to support design for remanufacture. The results of the waste- stream analysis of an automotive remanufacturer were used for this FMEA

  20. Electrochemical Energy Storage Technologies and the Automotive Industry

    ScienceCinema (OSTI)

    Mark Verbrugge

    2010-01-08T23:59:59.000Z

    The first portion of the lecture will relate global energy challenges to trends in personal transportation. Following this introduction, a short overview of technology associated with lithium ion batteries for traction applications will be provided. Last, I shall present new research results that enable adaptive characterization of lithium ion cells. Experimental and modeling results help to clarify the underlying electrochemistry and system performance. Specifically, through chemical modification of the electrodes, it is possible to place markers within the electrodes that signal the state of charge of a battery through abrupt voltage changes during cell operation, thereby allowing full utilization of the battery in applications. In closing, I shall highlight some promising materials research efforts that are expected to lead to substantially improved battery technology

  1. Internalization of robust engineering methods in automotive product development : a study of corporate quality change in a large, mature automotive company

    E-Print Network [OSTI]

    Fallu, John W. (John William), 1966-

    2004-01-01T23:59:59.000Z

    It is broadly recognized in the automotive industry, as well as many others, that those organizations that can deliver timely new products or existing product upgrades at desired cost and quality targets will produce higher ...

  2. Electrohydraulic Forming of Near-Net Shape Automotive Panels

    SciTech Connect (OSTI)

    Golovaschenko, Sergey F.

    2013-09-26T23:59:59.000Z

    The objective of this project was to develop the electrohydraulic forming (EHF) process as a near-net shape automotive panel manufacturing technology that simultaneously reduces the energy embedded in vehicles and the energy consumed while producing automotive structures. Pulsed pressure is created via a shockwave generated by the discharge of high voltage capacitors through a pair of electrodes in a liquid-filled chamber. The shockwave in the liquid initiated by the expansion of the plasma channel formed between two electrodes propagates towards the blank and causes the blank to be deformed into a one-sided die cavity. The numerical model of the EHF process was validated experimentally and was successfully applied to the design of the electrode system and to a multi-electrode EHF chamber for full scale validation of the process. The numerical model was able to predict stresses in the dies during pulsed forming and was validated by the experimental study of the die insert failure mode for corner filling operations. The electrohydraulic forming process and its major subsystems, including durable electrodes, an EHF chamber, a water/air management system, a pulse generator and integrated process controls, were validated to be capable to operate in a fully automated, computer controlled mode for forming of a portion of a full-scale sheet metal component in laboratory conditions. Additionally, the novel processes of electrohydraulic trimming and electrohydraulic calibration were demonstrated at a reduced-scale component level. Furthermore, a hybrid process combining conventional stamping with EHF was demonstrated as a laboratory process for a full-scale automotive panel formed out of AHSS material. The economic feasibility of the developed EHF processes was defined by developing a cost model of the EHF process in comparison to the conventional stamping process.

  3. E-Print Network 3.0 - amphoteric water-in-oil self-inverting...

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

    amphoteric water-in-oil self-inverting Search Powered by Explorit Topic List Advanced Search Sample search results for: amphoteric water-in-oil self-inverting Page: << < 1 2 3 4 5...

  4. Microsoft Word - AZ Automotive_Presentation to ATVMLP.doc

    Energy Savers [EERE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office0-72.pdfGeorgeDoesn't32 Master EMAZ AUTOMOTIVE Submitted by: Jim Gehrke Date: October

  5. Thermoelectric Materials for Automotive Applications | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment ofPowered VehicleDepartment offor Automotive

  6. Hybrid-electric propulsion for automotive and aviation applications

    E-Print Network [OSTI]

    Friedrich, C; Robertson, P. A.

    2014-12-30T23:59:59.000Z

    scenario. Based on that definition, a scenario of 100 % saving in fuel is possible when using a purely electric powertrain (HF = 100 %) and freely available energy to charge the batteries such as from a solar panel or wind turbine (neglecting the energy... , reduced take-off noise, and a reduced heat signature. Small-scale hybrid-electric systems have been mainly applied in the automotive sector and represent a novel concept in the aviation sector. The architecture of HEPS can be classified into four main...

  7. Direct Hydrogen PEMFC Manufacturing Cost Estimation for Automotive

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat Pump Models |Conduct, Parent(CRADA and DOW Automotive) |and DPFDirectApplications:

  8. W.E.T. Automotive Systems | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 South Place: Salt Lake City,Division of OilGuyane Jump to:Vu1HotAutomotive

  9. Optimal Dispatch of Photovoltaic Inverters in Residential Distribution Systems

    E-Print Network [OSTI]

    Giannakis, Georgios

    , reactive power generation/consumption based on monitoring local electrical quantities has been recog- nized method for determining the active- and reactive-power set points for PV inverters in residential systems as a viable option to effect voltage regulation [4], [8]­[12]. However, such reactive power control (RPC

  10. Design and Control of an Inverter for Photovoltaic Applications

    E-Print Network [OSTI]

    Hansen, René Rydhof

    Design and Control of an Inverter for Photovoltaic Applications by Søren Bækhøj Kjær Dissertation Assistant. He also taught photovoltaic systems for terrestrial- and space-applications (Power system quality, control and optimized design, for fuel cell and photovoltaic applications. He is currently

  11. Summary Review of Advanced Inverter Technologies for Residential PV Systems

    E-Print Network [OSTI]

    and Energy Reliability As part of Cooperative Agreement No. DE-EE0003507 Under Task 3.1: Photovoltaic Systems of Electricity Delivery and Energy Reliability Under Cooperative Agreement No. DE-EE0003507 Hawai`i Energy Sustainability Program Subtask 3.1 Photovoltaic Systems: Report 2 Summary of Inverter Technologies Submitted

  12. A Unified Framework for Numerically Inverting Laplace Joseph Abate

    E-Print Network [OSTI]

    Whitt, Ward

    A Unified Framework for Numerically Inverting Laplace Transforms Joseph Abate 900 Hammond Road been many applications; e.g., see the survey by Abate et al. (1999) and the textbook treatment by Kao transforms; e.g., see the surveys in Abate and Whitt (1992) and Chapter 19 of Davies (2002), the extensive

  13. Optimum Fuel Cell Utilization with Multilevel Inverters Burak Ozpineci1

    E-Print Network [OSTI]

    Tolbert, Leon M.

    Optimum Fuel Cell Utilization with Multilevel Inverters Burak Ozpineci1 1 Oak Ridge National of Tennessee Knoxville, TN USA Email: tolbert@utk.edu, zdu1@utk.edu Abstract-- Static characteristics of fuel. This inevitable decrease, which is caused by internal losses, reduces the utilization factor of the fuel cells

  14. Danfoss Commercial Compressors October 2013 | 2 Inverter compressors

    E-Print Network [OSTI]

    Oak Ridge National Laboratory

    #12;Danfoss Commercial Compressors October 2013 | 2 Inverter compressors Geothermal energy taps to improve heat pump efficiency : compressor technology focus Efficiency boost in Ground Source Heat Pump-sized or require additional electrical heaters #12;Danfoss Commercial Compressors October 2013 | 6 What difference

  15. Separating myths from reality in PV inverter reliability

    E-Print Network [OSTI]

    Rollins, Andrew M.

    to improving the lifetime and reliability of Enecsys solar micro inverters." · Enphase white paper: "[our technology and not the other? Why can't even microinverter companies agree on this? #12;Switch mode power" stage steers the sine wave to positive & negative lobes #12;The need for storage · With any switchmode

  16. Minimal Schemes for Large Neutrino Mixings with Inverted Hierarchy

    E-Print Network [OSTI]

    Duane A. Dicus; Hong-Jian He; John N. Ng

    2002-05-17T23:59:59.000Z

    Existing oscillation data point to nonzero neutrino masses with large mixings. We analyze the generic features of the neutrino Majorana mass matrix with inverted hierarchy and construct realistic {\\it minimal schemes} for the neutrino mass matrix that can explain the large (but not maximal) \

  17. Review of PV Inverter Technology Cost and Performance Projections

    SciTech Connect (OSTI)

    Navigant Consulting Inc.

    2006-01-01T23:59:59.000Z

    The National Renewable Energy Laboratory (NREL) has a major responsibility in the implementation of the U.S. Department of Energy's (DOE's) Solar Energy Technologies Program. Sandia National Laboratories (SNL) has a major role in supporting inverter development, characterization, standards, certifications, and verifications. The Solar Energy Technologies Program recently published a Multiyear Technical Plan, which establishes a goal of reducing the Levelized Energy Cost (LEC) for photovoltaic (PV) systems to $0.06/kWh by 2020. The Multiyear Technical Plan estimates that, in order to meet the PV system goal, PV inverter prices will need to decline to $0.25-0.30 Wp by 2020. DOE determined the need to conduct a rigorous review of the PV Program's technical and economic targets, including the target set for PV inverters. NREL requested that Navigant Consulting Inc.(NCI) conduct a review of historical and projected cost and performance improvements for PV inverters, including identification of critical barriers identified and the approaches government might use to address them.

  18. Fault Tolerance on Interleaved inverter with Magnetic couplers

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Fault Tolerance on Interleaved inverter with Magnetic couplers K.Guépratte, D.Frey, P-O.Jeannin, H Electrical Engineering (G2Elab), Thales Systemes Aeroportes Abstract- The paper focuses on a new control strategy for improving the availability of power electronic converters based on interleaved structures

  19. WEAK SUBINTEGRALITY AND INVERTIBLE MODULES IN GRADED RINGS

    E-Print Network [OSTI]

    Roberts, Leslie

    WEAK SUBINTEGRALITY AND INVERTIBLE MODULES IN GRADED RINGSB=A : B=A ! I (A?, B?). Here A? is the divided power algebra associated with A, which is the ring having, then the homomorphism iB=A : B=A ! I (A?, B?) is an isomorphism. A key new observation used in the proof

  20. Invertible Clipping for Increasing the Power Efficiency of OFDM Amplification

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Invertible Clipping for Increasing the Power Efficiency of OFDM Amplification Salvatore Ragusa amplification in mobile communication systems. In this paper, we propose a new Peak-to- Average Power Ratio.Louet@supelec.fr Abstract-- Large fluctuations of OFDM signal amplitude rep- resent an important problem for power

  1. High voltage power supply with modular series resonant inverters

    DOE Patents [OSTI]

    Dreifuerst, Gary R. (Livermore, CA); Merritt, Bernard T. (Livermore, CA)

    1995-01-01T23:59:59.000Z

    A relatively small and compact high voltage, high current power supply for a laser utilizes a plurality of modules containing series resonant half bridge inverters. A pair of reverse conducting thyristors are incorporated in each series resonant inverter module such that the series resonant inverter modules are sequentially activated in phases 360.degree./n apart, where n=number of modules for n>2. Selective activation of the modules allows precise output control reducing ripple and improving efficiency. Each series resonant half bridge inverter module includes a transformer which has a cooling manifold for actively circulating a coolant such as water, to cool the transformer core as well as selected circuit elements. Conductors connecting and forming various circuit components comprise hollow, electrically conductive tubes such as copper. Coolant circulates through the tubes to remove heat. The conductive tubes act as electrically conductive lines for connecting various components of the power supply. Where it is desired to make electrical isolation breaks, tubes comprised of insulating material such as nylon are used to provide insulation and continue the fluid circuit.

  2. High voltage power supply with modular series resonant inverters

    DOE Patents [OSTI]

    Dreifuerst, G.R.; Merritt, B.T.

    1995-07-18T23:59:59.000Z

    A relatively small and compact high voltage, high current power supply for a laser utilizes a plurality of modules containing series resonant half bridge inverters. A pair of reverse conducting thyristors are incorporated in each series resonant inverter module such that the series resonant inverter modules are sequentially activated in phases 360{degree}/n apart, where n=number of modules for n>2. Selective activation of the modules allows precise output control reducing ripple and improving efficiency. Each series resonant half bridge inverter module includes a transformer which has a cooling manifold for actively circulating a coolant such as water, to cool the transformer core as well as selected circuit elements. Conductors connecting and forming various circuit components comprise hollow, electrically conductive tubes such as copper. Coolant circulates through the tubes to remove heat. The conductive tubes act as electrically conductive lines for connecting various components of the power supply. Where it is desired to make electrical isolation breaks, tubes comprised of insulating material such as nylon are used to provide insulation and continue the fluid circuit. 11 figs.

  3. Optimized Triple-Junction Solar Cells Using Inverted Metamorphic Approach (Presentation)

    SciTech Connect (OSTI)

    Geisz, J. F.

    2008-11-01T23:59:59.000Z

    Record efficiencies with triple-junction inverted metamorphic designs, modeling useful to optimize, and consider operating conditions before choosing design.

  4. Inverting Quantum Decoherence by Classical Feedback from the Environment Francesco Buscemi, Giulio Chiribella, and Giacomo Mauro D'Ariano

    E-Print Network [OSTI]

    D'Ariano, Giacomo Mauro

    Inverting Quantum Decoherence by Classical Feedback from the Environment Francesco Buscemi, Giulio the en- vironment in order to invert the decoherence process. A completely decohering evolution

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

    E-Print Network [OSTI]

    Peng, Huei

    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

  6. Incremental Cluster-Based Retrieval using Compressed Cluster-Skipping Inverted Files

    E-Print Network [OSTI]

    Can, Fazli

    Incremental Cluster-Based Retrieval using Compressed Cluster-Skipping Inverted Files ISMAIL SENGOR ________________________________________________________________________ We propose a unique cluster-based retrieval (CBR) strategy using a new cluster-skipping inverted file for improving query processing efficiency. The new inverted file incorporates cluster membership and centroid

  7. Origin-Dependent Inverted-Repeat Amplification: A Replication-Based Model for Generating Palindromic

    E-Print Network [OSTI]

    Dunham, Maitreya

    Viewpoints Origin-Dependent Inverted-Repeat Amplification: A Replication-Based Model for Generating in different ways--for example, by end-to- end fusion at short inverted repeats, by non-allelic homologous, the specific class of amplicons that consists of interstitial inverted tripli- cations has no completely

  8. Inverting faces elicits sensitivity to race on the N170 component: A cross-cultural study

    E-Print Network [OSTI]

    Williamson, John

    Inverting faces elicits sensitivity to race on the N170 component: A cross-cultural study: the so-called other-race effect (ORE). Inverting faces impairs recognition more than for any other inverted visual object: the so-called face inversion effect (FIE). Interestingly, the FIE is stronger

  9. INVERTIBLE AND NILPOTENT ELEMENTS IN THE GROUP ALGEBRA OF A UNIQUE PRODUCT GROUP

    E-Print Network [OSTI]

    Neher, Erhard

    INVERTIBLE AND NILPOTENT ELEMENTS IN THE GROUP ALGEBRA OF A UNIQUE PRODUCT GROUP ERHARD NEHER Abstract. We describe the nilpotent and invertible elements in group alge- bras k[G] for k a commutative. A fundamental problem in the theory of group algebras is to determine their units = invertible elements

  10. Aalborg Universitet Frequency Adaptive Selective Harmonic Control for Grid-Connected Inverters

    E-Print Network [OSTI]

    Berning, Torsten

    Aalborg Universitet Frequency Adaptive Selective Harmonic Control for Grid-Connected Inverters Yang Harmonic Control for Grid-Connected Inverters. IEEE Transactions on Power Electronics, 1-13. 10.1109/TPEL Selective Harmonic Control for Grid-Connected Inverters Yongheng Yang, Student Member, IEEE, Keliang Zhou

  11. Using Inverted Lists to Match Structured Text Department of Computer Science

    E-Print Network [OSTI]

    Waterloo, University of

    Using Inverted Lists to Match Structured Text Sheng Li Department of Computer Science University for the degree of Master of Mathematics in Computer Science at the University of Waterloo. #12;Abstract Inverted database systems. For information re- trieval systems, postings lists use a similar inverted le structure

  12. Inverting Ultrasonic Data on Solid/Fluid Mixtures for BiotGassmann Parameters

    E-Print Network [OSTI]

    Inverting Ultrasonic Data on Solid/Fluid Mixtures for Biot­Gassmann Parameters James G. Berryman Geophysics Department Stanford University Stanford, CA 94305­2215 #12; Inverting Ultrasonic Data on Solid, the values of the slopes are smaller than expected for some rocks. Therefore, the process of inverting

  13. Challenging Ubiquitous Inverted Files Arjen P. de Vries1,2

    E-Print Network [OSTI]

    de Vries, Arjen P.

    Challenging Ubiquitous Inverted Files Arjen P. de Vries1,2 1 CWI, Amsterdam, The Netherlands 2 on highly optimized inverted file structures are generally con- sidered `the' solution for building search presented online. Inverted file structures are widely used in the implementation of stand-alone IR systems

  14. The Excess of Small Inverted Repeats in Prokaryotes Emmanuel D. Ladoukakis Adam Eyre-Walker

    E-Print Network [OSTI]

    Eyre-Walker, Adam

    The Excess of Small Inverted Repeats in Prokaryotes Emmanuel D. Ladoukakis ? Adam Eyre+Business Media, LLC 2008 Abstract Recent analyses have shown that there is a large excess of perfect inverted previously tends to underestimate the expected num- ber of inverted repeats. However, this bias is not large

  15. The time-delayed inverted pendulum: Implications for human balance control

    E-Print Network [OSTI]

    Milton, John G.

    The time-delayed inverted pendulum: Implications for human balance control John Milton,1 Juan Luis May 2009; published online 29 June 2009 The inverted pendulum is frequently used as a starting point experimental paradigms of time-delayed balance control: 1 mechanical inverted time-delayed pendulum, 2 stick

  16. Inverted metamorphic sequence in the Sikkim Himalayas: crystallization history, PT gradient and implications

    E-Print Network [OSTI]

    Ganguly, Jibamitra

    Inverted metamorphic sequence in the Sikkim Himalayas: crystallization history, P­T gradient The metapelitic rocks of the Sikkim Himalayas show an inverted metamorphic sequence (IMS) of the complete to be capable of explaining these observations. Key words: Himalayas; inverted Barrovian zones; main central

  17. PWM Inverter Output Filter Cost to Losses Trade Off and Optimal Design

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    PWM Inverter Output Filter Cost to Losses Trade Off and Optimal Design Robert J. Pasterczyk Jean--This paper describes how to design the output filter of a PWM inverter used in a Uninterruptible Power SupplyVA 3-ph. PWM inverter is taken as example. B. Design Constraints Uninterruptible Power Supply (UPS

  18. Introduction Inverted index Processing Boolean queries Query optimization Course overview Introduction to Information Retrieval

    E-Print Network [OSTI]

    Nejdl, Wolfgang

    Introduction Inverted index Processing Boolean queries Query optimization Course overview Retrieval 1 / 60 #12;Introduction Inverted index Processing Boolean queries Query optimization Course overview Take-away Sch¨utze: Boolean Retrieval 2 / 60 #12;Introduction Inverted index Processing Boolean

  19. INVERTED ECHO SOUNDER DEVELOPMENT G. F. Chaplin and D. Randolph Watts

    E-Print Network [OSTI]

    Rhode Island, University of

    INVERTED ECHO SOUNDER DEVELOPMENT G. F. Chaplin and D. Randolph Watts Graduate School of Oceanography University of Rhode Island Narragansett, RI 02882 ABSTRACT The Inverted Echo Sounder (IES and, consequently, the acoustic travel time through the water column change. The inverted echo sounder

  20. Comparing Inverted Files and Signature Files for Searching a Large Lexicon

    E-Print Network [OSTI]

    Can, Fazli

    Comparing Inverted Files and Signature Files for Searching a Large Lexicon BEN CARTERETTE1 , FAZLI, 2003 To appear in Information Processing and Management Abstract Signature files and inverted files, a bit-sliced signature file can be compressed to a smaller size than an inverted file if each n