National Library of Energy BETA

Sample records for automotive traction inverter

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

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

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

  2. Gas cooled traction drive inverter

    DOE Patents [OSTI]

    Chinthavali, Madhu Sudhan

    2013-10-08

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

    SciTech Connect (OSTI)

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

    2014-09-01

    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.

  4. A Five-Leg Inverter for Driving a Traction Motor and a Compressor Motor

    SciTech Connect (OSTI)

    Su, Gui-Jia; Hsu, John S

    2006-01-01

    This paper presents an integrated inverter for speed control of a traction motor and a compressor motor to reduce the compressor drive cost in EV/HEV applications. The inverter comprises five phase-legs; three of which are for control of a three-phase traction motor and the remaining two for a two-phase compressor motor with three terminals. The common terminal of the two-phase motor is tied to the neutral point of the three-phase traction motor to eliminate the requirement of a third phase leg. Further cost savings are made possible by sharing the switching devices, dc bus filter capacitors, gate drive power supplies, and control circuit. Simulation and experimental results are included to verify that speed control of the two motors is independent from each other.

  5. 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

    2006-01-01

    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.

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

    SciTech Connect (OSTI)

    None, None

    2012-01-31

    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.

  7. 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.

    2014-08-01

    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.

  8. Vehicle Technologies Office Merit Review 2015: 88 Kilowatt Automotive...

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

    88 Kilowatt Automotive Inverter with New 900 Volt Silicon Carbide MOSFET Technology Vehicle Technologies Office Merit Review 2015: 88 Kilowatt Automotive Inverter with New 900 Volt...

  9. Advanced Integrated Traction System

    SciTech Connect (OSTI)

    Greg Smith; Charles Gough

    2011-08-31

    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.

  10. Advanced Integrated Electric Traction System

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

    Integrated Electric Traction System Greg S. Smith Email: gregory.3.smith@gm.com Phone: (310) 257-3812 Organization: General Motors Team members: Ames Laboratory Arnold Magnetics...

  11. Updating Automotive Research

    E-Print Network [OSTI]

    Sperling, Dan

    2002-01-01

    DANIEL SPERLING Updating Automotive Research Although thewithout vast subsidies. Automotive News, the main auto-relationship between the automotive indus- try and federal

  12. 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 RankADVANCED MANUFACTURINGEnergy Bills andOrder 422.1, CONDUCT PDepartmentOrder (2013-SE-14001)Energy 2

  13. 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 RankADVANCED MANUFACTURINGEnergy Bills andOrder 422.1, CONDUCT PDepartmentOrder (2013-SE-14001)Energy

  14. 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 RankADVANCED MANUFACTURINGEnergy Bills andOrder 422.1, CONDUCT PDepartmentOrder

  15. 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 RankADVANCED MANUFACTURINGEnergy Bills andOrder 422.1, CONDUCT PDepartmentOrderEnergy Permanent Magnet

  16. Air-Cooled Traction Drive Inverter | 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:FinancingPetroleum Based Fuels Research at NRELDepartment ofEnergy 1 DOEEnergy

  17. Sandia Energy - Automotive HCCI Engine

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

    Automotive HCCI Engine Home Transportation Energy Predictive Simulation of Engines Engine Combustion Automotive Automotive HCCI Engine Automotive HCCI EngineAshley...

  18. Integrated Inverter For Driving Multiple Electric Machines

    DOE Patents [OSTI]

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

    2006-04-04

    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.

  19. Thermoelectrics Partnership: Automotive Thermoelectric Modules...

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

    More Documents & Publications Novel Nanostructured Interface Solution for Automotive Thermoelectric Modules Application Thermoelectrics Partnership: Automotive...

  20. Essays on Automotive Lending, Gasoline Prices, & Automotive Demand

    E-Print Network [OSTI]

    Schulz-Mahlendorf, Wilko Ziggy

    2013-01-01

    transaction data from a major automotive marketing agency. Iand credit, not gas. ” Automotive News, September 22, 2008.Dieckman, Christian (2008). “Automotive Finance : The Case

  1. Traction Drive Systems Breakout Group

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield Municipal Gas &SCE- Non-ResidentialAlliantPGEDepartment ofpresentationTRACTION DRIVE SYSTEM

  2. FreedomCAR Advanced Traction Drive Motor Development Phase I

    SciTech Connect (OSTI)

    Ley, Josh; Lutz, Jon

    2006-09-01

    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.

  3. Automotive electronics business

    E-Print Network [OSTI]

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

    2007-01-01

    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 ...

  4. AZ Automotive: Presentation

    Broader source: Energy.gov [DOE]

    The role of midsize automotive module suppliers in meeting the goals of the Energy Independence and Security act of 2007

  5. Workplace Charging Challenge Partner: Bosch Automotive Service...

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

    Bosch Automotive Service Solutions, Inc. Workplace Charging Challenge Partner: Bosch Automotive Service Solutions, Inc. Workplace Charging Challenge Partner: Bosch Automotive...

  6. Power inverters

    DOE Patents [OSTI]

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

    2011-11-15

    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.

  7. Automotive Component Product Development Enhancement

    E-Print Network [OSTI]

    de Weck, Olivier L.

    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

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

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

    Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs Utilizing the Traction Drive Power Electronics System to Provide Plug-in Capability for PHEVs 2009...

  9. A Five-Level Three-Phase Cascade Multilevel Inverter Using a Single DC Source for a PM Synchronous Motor Drive

    SciTech Connect (OSTI)

    Ozpineci, Burak; Chiasson, John N; Tolbert, Leon M

    2007-01-01

    The interest here is in using a single DC power source 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 with each inverter leg, which use a capacitor as a DC source. It is shown that one can simultaneously maintain the regulation of the capacitor voltage while achieving an output voltage waveform which is 25% higher than that obtained using a standard 3-leg inverter by itself.

  10. Automotive Engineering Summer Germany (AESG)

    E-Print Network [OSTI]

    Battaglia, Francine

    Automotive Engineering Summer Germany (AESG) #12;2 Automotive Engineering Summer Germany #12 of May 3 automotive classes will be offered (12 ECTS in total) credits can be transferred to UB / VT of May 3 automotive classes will be offered (12 ECTS in total) no knowledge of the German language

  11. Traction Drive Systems Breakout | 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 RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings forTitle XVIIofTracers andTraction Drive

  12. Three-Dimensional Quantification of Cellular Traction Forces and Mechanosensing of Thin Substrata by Fourier Traction Force Microscopy

    E-Print Network [OSTI]

    Juan C del Alamo; Ruedi Meili; Begoña Alvarez-Gonzalez; Baldomero Alonso-Latorre; Effie Bastounis; Richard Firtel; Juan C Lasheras

    2013-06-18

    We introduce a novel three-dimensional (3D) traction force microscopy (TFM) method motivated by the recent discovery that cells adhering on plane surfaces exert both in-plane and out-of-plane traction stresses. We measure the 3D deformation of the substratum on a thin layer near its surface, and input this information into an exact analytical solution of the elastic equilibrium equation. These operations are performed in the Fourier domain with high computational efficiency, allowing to obtain the 3D traction stresses from raw microscopy images virtually in real time. We also characterize the error of previous two-dimensional (2D) TFM methods that neglect the out-of-plane component of the traction stresses. This analysis reveals that, under certain combinations of experimental parameters (\\ie cell size, substratums' thickness and Poisson's ratio), the accuracy of 2D TFM methods is minimally affected by neglecting the out-of-plane component of the traction stresses. Finally, we consider the cell's mechanosensing of substratum thickness by 3D traction stresses, finding that, when cells adhere on thin substrata, their out-of-plane traction stresses can reach four times deeper into the substratum than their in-plane traction stresses. It is also found that the substratum stiffness sensed by applying out-of-plane traction stresses may be up to 10 times larger than the stiffness sensed by applying in-plane traction stresses.

  13. 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,...

  14. 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...

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

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

    Nanostructured Interface Solution for Automotive Thermoelectric Modules Application Novel Nanostructured Interface Solution for Automotive Thermoelectric Modules Application...

  16. Experimental Approach of a High Performance Control of Two PermanentMagnet Synchronous Machines in an Integrated Drive for Automotive Applications

    SciTech Connect (OSTI)

    Tang, Lixin; Su, Gui-Jia

    2006-01-01

    The close-loop digital signal processor (DSP) control of an integrated-dual inverter, which is able to drive two permanent magnet (PM) motors independently, is presented and evaluated experimentally. By utilizing the neutral point of the main traction motor, only two inverter poles are needed for the two-phase auxiliary motor. The modified field-oriented control scheme for this integrated inverter was introduced and employed in real-time control. The experimental results show the inverter is able to control two drives independently. An integrated, component count reduced drive is achieved.

  17. EV Everywhere Workshop: Traction Drive Systems Breakout Group...

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

    7amarlinoed.pdf More Documents & Publications EV Everywhere - Charge to Breakout Sessions EV Everywhere Framing Workshop - Report Out & Lessons Learned Traction Drive Systems...

  18. Real-Time Neutron Radiography - Applications For The Automotive Industry

    E-Print Network [OSTI]

    Richards, Wade J; Tuttle, Michael J; Ulowetz, Kirsten; Mcgee, Robert

    2003-01-01

    Applications For The Automotive Industry Wade J. Richardss radioscopic systems. Automotive Applications Even thoughcomponent capability for automotive applications. Using

  19. Simple cost model for EV traction motors

    SciTech Connect (OSTI)

    Cuenca, R.M.

    1995-02-01

    A simple cost model has been developed that allows the calculation of the OEM cost of electric traction motors of three different types, normalized as a function of power in order to accommodate different power and size. The model includes enough information on the various elements integrated in the motors to allow analysis of individual components and to factor-in the effects of changes in commodities prices. A scalable cost model for each of the main components of an electric vehicle (EV) is a useful tool that can have direct application in computer simulation or in parametric studies. For the cost model to have wide usefulness, it needs to be valid for a range of values of some parameter that determines the magnitude or size of the component. For instance, in the case of batteries, size may be determined by energy capacity, usually expressed in kilowatt-hours (kWh), while in the case of traction motors, size is better determined by rated power, usually expressed in kilowatts (kW). The simplest case is when the cost of the component in question is a direct function of its size; then cost is simply the product of its specific cost ($/unit size) and the number of units (size) in the vehicle in question. Batteries usually fall in this category (cost = energy capacity x $/kWh). But cost is not always linear with size or magnitude; motors (and controllers), for instance, become relatively less expensive as power rating increases. Traction motors, one of the main components for EV powertrains are examined in this paper, and a simplified cost model is developed for the three most popular design variations.

  20. Automotive Engineering Summer Germany 2015

    E-Print Network [OSTI]

    Battaglia, Francine

    Automotive Engineering Summer Germany 2015 Technische Universität Darmstadt Prof. Dr. rer. nat manufactures and automotive suppliers. For example FZD is working on predictive suspension control strategies and advanced driver assistant systems. Therefore the automotive institute owns a plurality of test vehicles

  1. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, S.R.

    1995-09-12

    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.

  2. Electric vehicle regenerative antiskid braking and traction control system

    DOE Patents [OSTI]

    Cikanek, Susan R. (Wixom, MI)

    1995-01-01

    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.

  3. Vehicle Technologies Office Merit Review 2014: Permanent Magnet Development for Automotive Traction Motors

    Broader source: Energy.gov [DOE]

    Presentation given by Ames Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about permanent magnet development...

  4. Advanced Electric Traction System Technology Development

    SciTech Connect (OSTI)

    Anderson, Iver

    2011-01-14

    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.

  5. Multilevel DC link inverter

    DOE Patents [OSTI]

    Su, Gui-Jia

    2003-06-10

    A multilevel DC link inverter and method for improving torque response and current regulation in permanent magnet motors and switched reluctance motors having a low inductance includes a plurality of voltage controlled cells connected in series for applying a resulting dc voltage comprised of one or more incremental dc voltages. The cells are provided with switches for increasing the resulting applied dc voltage as speed and back EMF increase, while limiting the voltage that is applied to the commutation switches to perform PWM or dc voltage stepping functions, so as to limit current ripple in the stator windings below an acceptable level, typically 5%. Several embodiments are disclosed including inverters using IGBT's, inverters using thyristors. All of the inverters are operable in both motoring and regenerating modes.

  6. 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:FinancingPetroleum12,ExecutiveFinancingR Walls - Building America Top InnovationDepartment

  7. Automotive Energy Storage Systems 2015

    Broader source: Energy.gov [DOE]

    Automotive Energy Storage Systems 2015, the ITB Group’s 16th annual technical conference, was held from March 4–5, 2015, in Novi, Michigan.

  8. Thermoelectrics Partnership: Automotive Thermoelectric Modules...

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

    ace067goodson2011o.pdf More Documents & Publications Thermoelectrics Partnership: Automotive Thermoelectric Modules with Scalable Thermo- and Electro-Mechanical Interfaces Novel...

  9. Technology Roadmap Analysis 2013: Assessing Automotive Technology...

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

    Technology Roadmap Analysis 2013: Assessing Automotive Technology R&D Relevant to DOE Power Electronics Cost Targets Technology Roadmap Analysis 2013: Assessing Automotive...

  10. 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...

  11. Thermoelectric Technology for Automotive Waste Heat Recovery...

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

    Technology for Automotive Waste Heat Recovery Thermoelectric Technology for Automotive Waste Heat Recovery Presentation given at the 2007 Diesel Engine-Efficiency & Emissions...

  12. 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...

  13. Thermoelectric Generator Development for Automotive Waste Heat...

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

    for Automotive Waste Heat Recovery Thermoelectric Generator Development for Automotive Waste Heat Recovery Presentation given at the 16th Directions in Engine-Efficiency and...

  14. Automotive Thermoelectric Generators and HVAC | Department of...

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

    Generators and HVAC Automotive Thermoelectric Generators and HVAC Provides overview of DOE-supported projects in automotive thermoelectric generators and heatersair conditioners...

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

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

    Advanced Thermoelectric Materials and Generator Technology for Automotive Waste Heat at GM Advanced Thermoelectric Materials and Generator Technology for Automotive Waste Heat at...

  16. Mechanical forces such as cell traction control cell growth, differ

    E-Print Network [OSTI]

    Salaita, Khalid

    Mechanical forces such as cell traction control cell growth, differ entiation, motility, which bind integrins (transmembrane receptors that relay mechanical signals from the extracellular the contribution of mechanical forces to cell behaviour and function. Eytan Zlotorynski TECHNIQUE DNA hairpins

  17. Correct traction boundary conditions in the indeterminate couple stress model

    E-Print Network [OSTI]

    Patrizio Neff; Ionel-Dumitrel Ghiba; Angela Madeo; Ingo Münch

    2015-04-02

    In this paper we consider the Grioli-Koiter-Mindlin-Toupin indeterminatecouple stress model. The main aim is to show that the traction boundary conditions were not yet completely deduced. As it turns out, and to our own surprise, restricting the boundary condition framework from the strain gradient models to the couple stress model does not reduce to Mindlin's set of accepted boundary conditions. We present therefore, for the first time the complete, consistent set of traction boundary conditions.

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

    SciTech Connect (OSTI)

    Staunton, R.H.

    2004-08-11

    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.

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

    SciTech Connect (OSTI)

    Staunton, R.H.

    2004-10-11

    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.

  20. 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

    2008-01-01

    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.

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

    SciTech Connect (OSTI)

    2012-01-01

    REACT Project: Baldor will develop a new type of traction motor with the potential to efficiently power future generations of EVs. Unlike today’s large, bulky EV motors which use expensive, imported rare-earth-based magnets, Baldor’s 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.

  2. 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.

    1997-06-24

    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.

  3. 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)

    1997-01-01

    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.

  4. Embedded Automotive System Development Process

    E-Print Network [OSTI]

    Langenwalter, Joachim

    2011-01-01

    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.

  5. AUTOMOTIVE INDUSTRY ANALYSIS Submitted by Team A

    E-Print Network [OSTI]

    AUTOMOTIVE INDUSTRY ANALYSIS Submitted by Team A Donald Bradley Morgan Bruns Adam Fleming Jay Ling on the automotive industry, specifically, large-scale manufacturers of automobiles. The automotive industry of the automotive industry. This is followed by an analysis of the industry's structural characteristics using

  6. Automotive EMC Workshop Clemson Vehicular Electronics Laboratory

    E-Print Network [OSTI]

    Stuart, Steven J.

    Automotive EMC Workshop Clemson Vehicular Electronics Laboratory Reliable Automotive Electronics/O · Adequate Decoupling · Balance Control 2 In 2011, CVEL began to guarantee that the automotive products they reviewed/designed would meet all automotive EMC requirements the first time they were tested. #12;Clemson

  7. Automotive Turbocharging: Industrial Requirements and Technology...

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

    Turbocharging: Industrial Requirements and Technology Developments Automotive Turbocharging: Industrial Requirements and Technology Developments Significant improvements in...

  8. Real-Time Neutron Radiography - Applications For The Automotive Industry

    E-Print Network [OSTI]

    Richards, Wade J; Tuttle, Michael J; Ulowetz, Kirsten; Mcgee, Robert

    2003-01-01

    Applications For The Automotive Industry Wade J. Richardstechniques for the automotive industry is not new 5 . Theused to assist the automotive industry in new and creative

  9. Energy and Environmental Challenges for the Japanese Automotive Industry

    E-Print Network [OSTI]

    Sperling, Daniel

    2000-01-01

    for the Japanese Automotive Industry UCD-ITS-RR-00-05 Danieland uncertainty for the automotive industry. The industryissues facing the automotive industry are regulation of

  10. Fact #570: May 11, 2009 Automotive Manufacturing Employment Declining...

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

    0: May 11, 2009 Automotive Manufacturing Employment Declining Fact 570: May 11, 2009 Automotive Manufacturing Employment Declining The number of people employed by automotive...

  11. Traction sheave elevator, hoisting unit and machine space

    DOE Patents [OSTI]

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

    2000-01-01

    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.

  12. 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 ...

  13. Ceramic Automotive Stirling Engine Program

    SciTech Connect (OSTI)

    Not Available

    1986-08-01

    The Ceramic Automotive Stirling Engine Program evaluated the application of advanced ceramic materials to an automotive Stirling engine. The objective of the program was to evaluate the technical feasibility of utilizing advanced ceramics to increase peak engine operating temperature, and to evaluate the performance benefits of such an increase. Manufacturing cost estimates were also developed for various ceramic engine components and compared with conventional metallic engine component costs.

  14. 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...

  15. 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...

  16. 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

  17. Microfabricated Silicone Elastomeric Post Arrays for Measuring Traction Forces of

    E-Print Network [OSTI]

    Chen, Christopher S.

    CHAPTER 13 Microfabricated Silicone Elastomeric Post Arrays for Measuring Traction Forces developed a device consisting of an array of flexible, microfabricated posts capable of measuring these forces under an adherent cell. Functionalizing the top of each post with ECM protein allows cells

  18. A Perspective on Emerging Automotive Safety

    E-Print Network [OSTI]

    Eustice, Ryan

    · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · A Perspective on Emerging Automotive Systems (IVS) team's in- volvement in the recent 2007 DARPA Urban Challenge, wherein our platform, the au- velopment of future automotive safety systems can potentially be accelerated by tackling the technological

  19. Integrated automotive exhaust engineering : uncertainty management

    E-Print Network [OSTI]

    Fang, Xitian, 1963-

    2006-01-01

    The global automotive industry has entered a stagnating period. Automotive OEMs and their tier suppliers are struggling for business growth. One of the most important strategies is to improve the engineering efficiency in ...

  20. Migrating Automotive Product Lines: a Case Study

    E-Print Network [OSTI]

    Cordy, James R.

    . Software Product Lines (SPL) are widely used to manage variability in the automotive industry. In a rapidly study from an automotive domain, that it is tractable to lift industrial-grade transforma- tionsMigrating Automotive Product Lines: a Case Study Michalis Famelis1 , Levi L´ucio2 , Gehan Selim3

  1. Automotive Engineering BEng (Hons) Key details

    E-Print Network [OSTI]

    Painter, Kevin

    Automotive Engineering BEng (Hons) Key details Duration: Full-time: 3 years (BEng) / 4 years (BEng programme, but allows students in the later years to specialise in subjects relating to automotive technology. Automotive engineering continues to be a major employer of professional engineers, owing

  2. 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

  3. MIT and Automotive Industries MIT Industry Brief

    E-Print Network [OSTI]

    Herr, Hugh

    MIT and Automotive Industries MIT Industry Brief MIT's Industrial Liaison Program (ILP) can bring@ilp.mit.edu, or visit http://ilp.mit.edu. MIT and Automotive Industries The Massachusetts Institute of Technology (MIT) is a leading center of research and education on topics important to the automotive industry and its suppliers

  4. Cardiogram: Visual Analytics for Automotive Engineers

    E-Print Network [OSTI]

    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

  5. 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, the controller is designed for and implemented on an electromagnetic valve actuator for use in automotive engines on an electromagnetic valve actuator for use in the actuation of automotive engine valves. 2. ELECTROMAGNETIC VALVE

  6. NONLINEAR MAGNETIC LEVITATION OF AUTOMOTIVE ENGINE VALVES

    E-Print Network [OSTI]

    Stefanopoulou, Anna

    NONLINEAR MAGNETIC LEVITATION OF AUTOMOTIVE ENGINE VALVES K. Peterson, J.W. Grizzle, and A, the controller is designed for and implemented on an electromagnetic valve actuator for use in automotive engines on an elec- tromagnetic valve actuator, designed for use in the actuation of automotive engine valves. 2

  7. Traction drive automatic transmission for gas turbine engine driveline

    DOE Patents [OSTI]

    Carriere, Donald L. (Livonia, MI)

    1984-01-01

    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.

  8. F:\\Users\\sinan\\Papers\\Paper-16-Roller\\Roller_Traction_SM.doc Traction Between a Web and a Smooth Roller

    E-Print Network [OSTI]

    Müftü, Sinan

    of a tensioned web over and under rollers, driers, coating and calendering stations, depending on the applicationF:\\Users\\sinan\\Papers\\Paper-16-Roller\\Roller_Traction_SM.doc Traction Between a Web and a Smooth Roller Sinan Müftü Associate Professor, Member ASME John J. Jagodnik, Graduate Student Northeastern

  9. formula society of automotive engineers

    E-Print Network [OSTI]

    Stormo, Gary

    formula society of automotive engineers >> wuracing.com #12;The 2013 season presents a huge and promising time for WUracing. Thank you, Surjan Singh President, Formula SAE, WUracing message to sponsors University comprises a group of enthusiastic students who completely design and fabricate a formula race car

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

    SciTech Connect (OSTI)

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

    2014-08-01

    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.

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

    SciTech Connect (OSTI)

    O'Keefe, M.; Vlahinos, A.

    2009-08-01

    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.

  12. 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

  13. 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

  14. Multidisciplinary design optimization of an automotive magnetorheological brake design

    E-Print Network [OSTI]

    Park, Edward

    Multidisciplinary design optimization of an automotive magnetorheological brake design Edward J to the elec- tromagnet. Key issues involved in the initial design of the automotive MR brake are presented: Magnetorheological fluid; Automotive brake; Finite element analysis; Computational fluid dynamics; Multidisciplinary

  15. Position Paper: Automotive CPS Workshop Oct. 2010 Fault-Tolerant Discrete Control Logic in Automotive Applications

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    in Automotive Applications Richard Hill Department of Mechanical Engineering, University of Detroit Mercy StPosition Paper: Automotive CPS Workshop Oct. 2010 Fault-Tolerant Discrete Control Logic systems, occupant safety systems, etc. As the complexity and coupling of these automotive control systems

  16. Center for Lightweighting Automotive Materials and Processing

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

    2007 Project Title Sponsor Development of Thermoplastic Matrix Composites using Resin Infusion CLAMP Fatigue of Automotive Thermoplastics CLAMP Development of Crush-Resistant...

  17. 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 2008 Annual Merit Review Results Summary - 16. Technology...

  18. 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 GATE Center of Excellence in Lightweight Materials and...

  19. Electrifying the Automotive Market | Argonne National Laboratory

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

    Electrifying the Automotive Market Argonne is developing battery technology that extends the range for electric vehicles while increasing safety and decreasing price. PDF icon...

  20. Can Automotive Battery Recycling Help Meet Lithium Demand? |...

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

    Can Automotive Battery Recycling Help Meet Lithium Demand? Title Can Automotive Battery Recycling Help Meet Lithium Demand? Publication Type Presentation Year of Publication 2013...

  1. ITP Aluminum: Aluminum Industry Roadmap for the Automotive Market...

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

    Aluminum Industry Roadmap for the Automotive Market (May 1999) ITP Aluminum: Aluminum Industry Roadmap for the Automotive Market (May 1999) autoroadmap.pdf More Documents &...

  2. System level modeling of thermoelectric generators for automotive...

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

    level modeling of thermoelectric generators for automotive applications System level modeling of thermoelectric generators for automotive applications Uses a model to predict and...

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

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

    ace45yang.pdf More Documents & Publications Develop Thermoelectric Technology for Automotive Waste Heat Recovery Engineering and Materials for Automotive Thermoelectric...

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

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

    6. Automotive Metals - Crosscutting FY 2009 Progress Report for Lightweighting Materials - 6. Automotive Metals - Crosscutting The primary Lightweight Materials activity goal is to...

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

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

    AMD 405: Improved Automotive Suspension Components Cast with B206 Alloy AMD 405: Improved Automotive Suspension Components Cast with B206 Alloy 2011 DOE Hydrogen and Fuel Cells...

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

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

    Looking From A Hilltop: Automotive Propulsion System Technology Looking From A Hilltop: Automotive Propulsion System Technology Outlook for global fuel economy requirements and...

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

    Office of Environmental Management (EM)

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

  8. 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...

  9. FY 2008 Progress Report for Lightweighting Materials - 2. Automotive...

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

    2. Automotive Metals-Wrought FY 2008 Progress Report for Lightweighting Materials - 2. Automotive Metals-Wrought Lightweighting Materials focuses on the development and validation...

  10. 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 precisely the reduction of their drag coefficient, becomes one of the main topics of the automotive research

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

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

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

  12. Fact #868: April 13, 2015 Automotive Technology Has Improved...

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

    8: April 13, 2015 Automotive Technology Has Improved Performance and Fuel Economy of New Light Vehicles Fact 868: April 13, 2015 Automotive Technology Has Improved Performance and...

  13. 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...

  14. Electrohydraulic Forming of Near Net Shape Automotive Panels

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

    Electrohydraulic Forming of Near Net Shape Automotive Panels The Development of Advancing Automotive Panel Manufacturing for Increased Energy and Material Savings The U.S....

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

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

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

  16. FY 2008 Progress Report for Lightweighting Materials - 5. Automotive...

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

    5. Automotive Metals-Steel FY 2008 Progress Report for Lightweighting Materials - 5. Automotive Metals-Steel Lightweighting Materials focuses on the development and validation of...

  17. FY 2008 Progress Report for Lightweighting Materials - 4. Automotive...

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

    4. Automotive Metals-Titanium FY 2008 Progress Report for Lightweighting Materials - 4. Automotive Metals-Titanium Lightweighting Materials focuses on the development and...

  18. 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...

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

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

    3. Automotive Metals - Cast FY 2009 Progress Report for Lightweighting Materials - 3. Automotive Metals - Cast The primary Lightweight Materials activity goal is to validate a...

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

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

    4. Automotive Metals - Titanium FY 2009 Progress Report for Lightweighting Materials - 4. Automotive Metals - Titanium The primary Lightweight Materials activity goal is to...

  1. 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...

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

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

    5. Automotive Metals - Steel FY 2009 Progress Report for Lightweighting Materials - 5. Automotive Metals - Steel The primary Lightweight Materials activity goal is to validate a...

  3. FY 2008 Progress Report for Lightweighting Materials - 6. Automotive...

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

    6. Automotive Metals-Crosscutting FY 2008 Progress Report for Lightweighting Materials - 6. Automotive Metals-Crosscutting Lightweighting Materials focuses on the development and...

  4. 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 In-Vehicle, High-Power Energy Storage Systems Penn State DOE Graduate Automotive Technology Education...

  5. High Efficiency Full Expansion (FEx) Engine for Automotive Application...

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

    Full Expansion (FEx) Engine for Automotive Applications High Efficiency Full Expansion (FEx) Engine for Automotive Applications Large increases in engine thermal efficiency result...

  6. FY 2009 Progress Report for Lightweighting Materials - 2. Automotive...

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

    2. Automotive Metals - Wrought FY 2009 Progress Report for Lightweighting Materials - 2. Automotive Metals - Wrought The primary Lightweight Materials activity goal is to validate...

  7. FY 2008 Progress Report for Lightweighting Materials - 3. Automotive...

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

    3. Automotive Metals-Cast FY 2008 Progress Report for Lightweighting Materials - 3. Automotive Metals-Cast Lightweighting Materials focuses on the development and validation of...

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

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

    Titanium Automotive Components: Manufacturing Process Feasibility StudyAMD 310 Low Cost PM Technology for Particle Reinforced Titanium Automotive Components: Manufacturing...

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

    E-Print Network [OSTI]

    ). Inappropriate selection of traction aids can have a negative impact on forest soil, water, the standing crop in forestry. Generic types of traction aids and their effects on machine travel are described. Guidance that allows efficient timber harvesting while safeguarding the condition of the site are also described. A U G

  10. 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)

    reduces these nine sources to only one: the battery car. The topology also permits full regenerative braking working as a three-level converter. The proposed system is intended for ap- plication in EVs from levels of voltage, bidirectional power supplies are required, and the same happens when regenerative

  11. Faculty of Engineering Mechanical, Automotive and

    E-Print Network [OSTI]

    Faculty of Engineering Mechanical, Automotive and Materials Engineering The field of Mechanical Engineering includes two broad areas of study. The first involves heat and power, and is referred, Automotive and Materials Engineering offers a multi-faceted program where you tackle real-world problems

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

    DOE Patents [OSTI]

    Cikanek, S.R.

    1994-10-25

    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.

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

    DOE Patents [OSTI]

    Cikanek, Susan R. (Wixom, MI)

    1994-01-01

    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.

  14. Integrity Automotive | 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 QA:QA J-E-1 SECTION J APPENDIXsource History View NewGuam:on OpeneiAlbanian Centre forBibliography ofAutomotive Jump

  15. Backup strategy for robots' failures in an automotive assembly system

    E-Print Network [OSTI]

    Ben-Gal, Irad E.

    history: Received 23 October 2006 Accepted 16 September 2007 Keywords: Automotive industry Assembly lines in the automotive industry High-volume body-shop systems in the automotive industry often consist of a seriesBackup strategy for robots' failures in an automotive assembly system Tomer Kahan a , Yossi Bukchin

  16. ORIGINAL ARTICLE On credibility improvements for automotive navigation systems

    E-Print Network [OSTI]

    Ulm, Universität

    ORIGINAL ARTICLE On credibility improvements for automotive navigation systems Florian Schaub The Author(s) 2012. This article is published with open access at Springerlink.com Abstract Automotive effects on perceived credibility. Keywords Automotive navigation systems Á ANS Á Credibility Á Automotive

  17. Enterprise Campuses Clemson University International Center for Automotive Research (CUICAR)

    E-Print Network [OSTI]

    Stuart, Steven J.

    Enterprise Campuses Clemson University International Center for Automotive Research (CUICAR collaborate to create a global venue for the automotive industry. CU-ICAR is home to the nation's only graduate Department of Automotive Engineering. CU-ICAR's diverse research portfolio is driven by automotive

  18. Timing verification of automotive communication architecture using quantile estimation

    E-Print Network [OSTI]

    Navet, Nicolas

    Timing verification of automotive communication architecture using quantile estimation Nicolas;1 Outline - 207/02/2014ERTSS'2014 Early-stage timing verification of wired automotive buses ­ CAN for quantiles derived by simulation 2 typical automotive use-cases #12;2 Automotive communication architectures

  19. Strategies for Burr Minimization and Cleanability in Aerospace and Automotive Manufacturing

    E-Print Network [OSTI]

    Avila, Miguel C.; Gardner, Joel D.; Reich-Weiser, Corinne; Vijayaraghavan, Athulan; Dornfeld, David

    2006-01-01

    aerospace and automotive industries has become increasinglythe aerospace and automotive industry, only during the pastLMA partners in the automotive industry. formation and crown

  20. Reducing the Environmental Footprint and Economic Costs of Automotive Manufacturing through an Alternative Energy Supply

    E-Print Network [OSTI]

    Yuan, Chris; Dornfeld, David

    2009-01-01

    ABSTRACT The automotive industry consumes a significantINTRODUCTION The automotive industry consumes a significantVOC, PM, and so on. The automotive industry has made a great

  1. Keiretsu, Governance, and Learning: Case Studies in Change from the Japanese Automotive Industry

    E-Print Network [OSTI]

    Ahmadjian, Christina L.; Lincoln, James R.

    2000-01-01

    in the Japanese Automotive Industry. Columbia Universityfrom the Japanese automotive industry Christina L. Ahmadjianchange from the Japanese automotive industry ABSTRACT The “

  2. Strategies for Burr Minimization and Cleanability in Aerospace and Automotive Manufacturing

    E-Print Network [OSTI]

    Ávila, Miguel C.; Gardner, Joel D.; Reich-Weiser, Corinne; Vijayaraghavan, Athulan; Dornfeld, David

    2006-01-01

    the Aerospace and Automotive Industry“, SAE Transactions J.aerospace and automotive industries has become increasinglyaerospace and automotive industries has become increasingly

  3. Strategies for Burr Minimization and Cleanability in Aerospace and Automotive Manufacturing

    E-Print Network [OSTI]

    Avila, Miguel C.; Gardner, Joel D.; Reich-Weiser, Corinne; Vijayaraghavan, Athulan; Dornfeld, David

    2006-01-01

    in Aerospace and Automotive Manufacturing Miguel Ávila, Joelin the aerospace and automotive industries has becomes in the aerospace and automotive industry, only during the

  4. Strategies for Burr Minimization and Cleanability in Aerospace and Automotive Manufacturing

    E-Print Network [OSTI]

    Ávila, Miguel C.; Gardner, Joel D.; Reich-Weiser, Corinne; Vijayaraghavan, Athulan; Dornfeld, David

    2006-01-01

    in Aerospace and Automotive Manufacturing Author: Avila,in the Aerospace and Automotive Industry“, SAE Transactionsin the aerospace and automotive industries has become

  5. Reducing the Environmental Footprint and Economic Costs of Automotive Manufacturing through an Alternative Energy Supply

    E-Print Network [OSTI]

    Yuan, Chris; Dornfeld, David

    2009-01-01

    air usage patterns in automotive manufacturing. ” Journal ofAND ECONOMIC COSTS OF AUTOMOTIVE MANUFACTURING THROUGH ANBerkeley Berkeley, CA KEYWORDS Automotive Manufacturing,

  6. Alternative Representations of Statistical Measures in Computer Tools to Promote Communication between Employees in Automotive Manufacturing

    E-Print Network [OSTI]

    Bakker, Arthur; Kent, Phillip; Noss, Richard; Hoyles, Celia

    2009-01-01

    and to lower costs. The automotive industry is a leadingcontrol (SPC) in an automotive assembly plant. Assumevery significant for automotive manufacture as the principle

  7. A Decision-Based Analysis of Compressed Air Usage Patterns in Automotive Manufacturing

    E-Print Network [OSTI]

    Yuan, Chris; Zhang, Teresa; Rangarajan, Arvind; Dornfeld, David; Ziemba, Bill; Whitbeck, Rod

    2006-01-01

    Air Usage Patterns in Automotive Manufacturing Chris Y. Yuanper vehicle built from automotive manufacturing facilities,2004). Compressed Air in Automotive Manufacturing Compressed

  8. 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.

    2012-06-01

    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.

  9. Fault-tolerant three-level inverter

    DOE Patents [OSTI]

    Edwards, John; Xu, Longya; Bhargava, Brij B.

    2006-12-05

    A method for driving a neutral point clamped three-level inverter is provided. In one exemplary embodiment, DC current is received at a neutral point-clamped three-level inverter. The inverter has a plurality of nodes including first, second and third output nodes. The inverter also has a plurality of switches. Faults are checked for in the inverter and predetermined switches are automatically activated responsive to a detected fault such that three-phase electrical power is provided at the output nodes.

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

    SciTech Connect (OSTI)

    Bailey, J.M.

    2005-10-24

    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.

  11. Effective switching frequency multiplier inverter

    DOE Patents [OSTI]

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

    2007-08-07

    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.

  12. Complexity reduction in automotive design and development

    E-Print Network [OSTI]

    Ziegler, Ronald J., 1965-

    2005-01-01

    Automobiles are complex products. High product complexity drives high levels of design and process complexity and complicatedness. This thesis attempts to reduce complicatedness in the automotive vehicle design and development ...

  13. Detection of arcs in automotive electrical systems

    E-Print Network [OSTI]

    Mishrikey, Matthew David

    2005-01-01

    At the present time, there is no established method for the detection of DC electric arcing. This is a concern for forthcoming advanced automotive electrical systems which consist of higher DC electric power bus voltages, ...

  14. Strategic frameworks in automotive systems architecting

    E-Print Network [OSTI]

    Tampi, Mahesh

    2012-01-01

    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 ...

  15. Driver expectancy in locating automotive controls 

    E-Print Network [OSTI]

    Francis, Dawn Suzette

    1990-01-01

    DRIVER EXPECTANCY IN LOCATING AUTOMOTIVE CONTROLS A Thesis by DAWN SUZETTE FRANCIS Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE May 1990... Major Subject: Industrial Engineering DRIVER EXPECTANCY IN LOCATING AUTOMOTIVE CONTROLS A Thesis by DAWN SUZETTE FRANCIS Approved as to style and content by: R. Dale Huchi son (Chair of Committee) Rodger . . ppa (Member) Waymon L ohnston (M er...

  16. Contactless magnetic brake for automotive applications 

    E-Print Network [OSTI]

    Gay, Sebastien Emmanuel

    2009-05-15

    MAGNETIC BRAKE FOR AUTOMOTIVE APPLICATIONS A Dissertation by SEBASTIEN EMMANUEL GAY Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY... May 2005 Major Subject: Electrical Engineering CONTACTLESS MAGNETIC BRAKE FOR AUTOMOTIVE APPLICATIONS A Dissertation by SEBASTIEN EMMANUEL GAY Submitted to Texas A&M University in partial fulfillment of the requirements...

  17. Vehicle Technologies Office Merit Review 2015: Traction Drive Systems with Integrated Wireless Charging

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by Oak Ridge National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about traction drive...

  18. 2 | energy & automotive research laboratory2 | energy & automotive research laboratory Creating Sustainable Energy Solutions

    E-Print Network [OSTI]

    Feeny, Brian

    nergy& utomotive esearch aboratory #12;2 | energy & automotive research laboratory2 | energy & automotive research laboratory Creating Sustainable Energy Solutions on the cover: A prototype cylinder head-third of all the energy used in the country. The critical need to reduce the nation's dependence on oil imports

  19. System and method for regulating resonant inverters

    DOE Patents [OSTI]

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

    2007-08-28

    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.

  20. 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 - Overview for covering fundamental cycles 9 Considering electrically useful inverters #12;David J. Hathaway, IBMPIs NAND NOR OR AND NOT NOT #12;David J. Hathaway, IBM EDAInverter Minimization 3 Gate Functions

  1. Inverter R&D

    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 RankADVANCED MANUFACTURING OFFICE INDUSTRIALU.S. Department of EnergyPresentationOverview ofInverter R&D

  2. Sandia Energy - Inverter Reliability Program

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II)Geothermal Energy &Water Power Program and CarderockDavidInverter

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

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

    Interim Update: Global Automotive Power Electronics R&D Relevant To DOE 2015 and 2020 Cost Targets Interim Update: Global Automotive Power Electronics R&D Relevant To DOE 2015 and...

  4. Life cycle cost modeling of automotive paint systems

    E-Print Network [OSTI]

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

    2007-01-01

    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 ...

  5. 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.

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

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

    More Documents & Publications Develop Thermoelectric Technology for Automotive Waste Heat Recovery Cost-Competitive Advanced Thermoelectric Generators for Direct...

  7. 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.

  8. 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...

  9. Aalborg Universitet Analysis and Modeling of Transformerless Photovoltaic Inverter Systems

    E-Print Network [OSTI]

    Kerekes, Tamas

    Aalborg Universitet Analysis and Modeling of Transformerless Photovoltaic Inverter Systems Kerekes and Modeling of Transformerless Photovoltaic Inverter Systems. Aalborg Universitet: Institut for Energiteknik from vbn.aau.dk on: juli 05, 2015 #12;Analysis and Modeling of Transformerless Photovoltaic Inverter

  10. Summary Review of Advanced Inverter Technologies for Residential PV Systems

    E-Print Network [OSTI]

    Summary Review of Advanced Inverter Technologies for Residential PV Systems This report summarizes current and emerging standards for residential PV systems and identifies the status of emerging inverter................................................................................................ 7 3. Grid-Connected PV inverters available in US

  11. OPTIMIZATION OF AUTOMOTIVE VALVE TRAIN COMPONENTS WITH IMPLICT FILTERING \\Lambda

    E-Print Network [OSTI]

    Filtering, Mechanical Systems, Automotive Valve Trains AMS subject classifications. 65K05, 65K10, 65L05, 65YOPTIMIZATION OF AUTOMOTIVE VALVE TRAIN COMPONENTS WITH IMPLICT FILTERING \\Lambda T. D. CHOI y , O identification and optimization in automotive valve train design. We extend our previous work by using a more

  12. Multicore scheduling in automotive ECUs Aurlien Monot1,2

    E-Print Network [OSTI]

    Navet, Nicolas

    , multicore ECUs are be- ing gradually introduced in the automotive domain. Those multicore platforms offerMulticore scheduling in automotive ECUs Aurélien Monot1,2 , Nicolas Navet3 , Françoise Simonot1 power is quickly increasing in the automotive domain, car manufactur- ers and tier-one suppliers

  13. Towards Characterizing and Classifying Communication-based Automotive Applications

    E-Print Network [OSTI]

    Xu, Wenyuan

    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

  14. 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

  15. 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

  16. Fostering Innovation and Investment In Ontario's Automotive Industry

    E-Print Network [OSTI]

    Haykin, Simon

    Fostering Innovation and Investment In Ontario's Automotive Industry Presentation to The First Development and Trade - Ontario #12;Ontario Automotive Industry · The auto industry has been in Ontario Ontario-US MidWest automotive region: 1 in 6 vehicles built in NA · Approximately 133,000 workers

  17. High Assurance Aerospace CPS & Implications for the Automotive Industry

    E-Print Network [OSTI]

    Poovendran, Radha

    High Assurance Aerospace CPS & Implications for the Automotive Industry Scott A. Lintelman1 assurance CPS can mutually benefit aerospace and automotive industries. I. INTRODUCTION Commercial aviation]. In the automotive industry, recent trends in intelligent transportation systems can be evidently mapped to e

  18. 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

  19. 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

  20. Framework for Security and Privacy in Automotive Telematics

    E-Print Network [OSTI]

    Gruteser, Marco

    Framework for Security and Privacy in Automotive Telematics Sastry Duri, Marco Gruteser, Xuan Liu Skyline Drive Hawthorne, New York 10532 ABSTRACT Automotive telematics may be defined as the information of data to obtain remote services. In order for automotive telematics to grow to its full potential

  1. 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

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

    E-Print Network [OSTI]

    Navet, Nicolas

    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

  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. 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

  5. Service-Oriented Modelling of Automotive Systems Laura Bocchi

    E-Print Network [OSTI]

    Ulidowski, Irek

    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

  6. 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

  7. Predictable Messaging in Wireless Automotive CPS Hongwei Zhang

    E-Print Network [OSTI]

    Zhang, Hongwei

    Predictable Messaging in Wireless Automotive CPS Hongwei Zhang Department of Computer Science to predictable, dependable messaging in mission-critical wireless automotive cyber-physical systems (CPS), then we explore research directions for addressing these challenges. 1 Wireless automotive CPS: vision

  8. 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

  9. 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

  10. 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

  11. Vehicle Electronics Exponential growth in automotive electronics as

    E-Print Network [OSTI]

    Stuart, Steven J.

    1 Vehicle Electronics #12; Exponential growth in automotive electronics as measured by: 2 ­ Number to keep up. 5 The automotive industry does not (yet) fully appreciate the challenges associated, May 2013. Automotive Testing Technology International, Nov. 2012. Project Goal: Develop a method

  12. 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

  13. Modeling Buffers with Data Refresh Semantics in Automotive Architectures

    E-Print Network [OSTI]

    Plotkin, Joshua B.

    Modeling 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 estimate various timing and perfor- mance metrics for automotive ECU networks consisting of buffers

  14. 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

  15. 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 for and implemented on an electromagnetic valve actuator for use in automotive engines, the control methodology, it is experimentally eval- uated on an electromagnetic valve actuator designed for use in the actuation of automotive

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

    E-Print Network [OSTI]

    Grizzle, Jessy W.

    Automotive Powertrain Control: A Survey Jeffrey A. Cook, Jing Sun Julia H. Buckland, Ilya V 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

  17. Automated Verification of Model Transformations in the Automotive Industry

    E-Print Network [OSTI]

    Cordy, James R.

    Automated Verification of Model Transformations in the Automotive Industry Gehan M. K. Selim1 Verification, Automotive In- dustry 1 Introduction Model Driven Development (MDD) has been increasingly used of the Pays de la Loire Region (France), and by NSERC (Canada), as part of the NECSIS Automotive Partnership

  18. 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

  19. automotive excellence Why Coventry University received a Royal

    E-Print Network [OSTI]

    automotive excellence Why Coventry University received a Royal approval in Transport and Product of the Queen's Anniversary prize for Higher and Further Education for its work in automotive design. Already a Centre of Excellence in Teaching and Learning in Product and Automotive Design in the UK, the Department

  20. Past experiences with automotive external combustion engines

    SciTech Connect (OSTI)

    Amann, C.A.

    1999-07-01

    GMR (General Motors Research Laboratories, now GM R and D Center) has a history of improving the internal combustion engine, especially as it relates to automotive use. During the quarter century from 1950--75, considerable effort was devoted to evaluating alternative powerplants based on thermodynamic cycles different from those on which the established spark-ignition and diesel engines are founded. Two of these, the steam engine and the Stirling engine, incorporated external combustion. Research on those two alternatives is reviewed. Both were judged to fall short of current needs for commercial success as prime movers for conventional automotive vehicles.

  1. Mod I automotive Stirling engine mechanical development

    SciTech Connect (OSTI)

    Simetkosky, M.

    1984-01-01

    The Mod I Stirling engine was the first automotive Stirling engine designed specifically for automotive application. Testing of these engines has revealed several deficiencies in engine mechanical integrity which have been corrected by redesign or upgrade. The main deficiencies uncovered during the Mod I program lie in the combustion, auxiliary, main seal, and heater head areas. This paper will address each of the major area deficiencies in detail, and describe the corrective actions taken as they apply to the Mod I and the next Stirling-engine design, the Upgraded Mod I (a redesign to incorporate new materials for cost/weight reduction and improved performance).

  2. Smart-Grid Ready PV Inverter with Utility Communication

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

    standards, operations center visibility and management, and optimized coordination of smart PV inverters with existing distribution control devices. Smart-Grid Ready PV Inverter...

  3. 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...

  4. Exploring Virtual Depth for Automotive Instrument Cluster

    E-Print Network [OSTI]

    Exploring Virtual Depth for Automotive Instrument Cluster Concepts Nora Broy1,2,3 , Benedikt Zierer instrument cluster. Permission to make digital or hard copies of part or all of this work for personal more pronounced as auto-stereoscopic displays become available for the car. For instance, H¨akkil¨a et

  5. Response Surface Methodology Its application to automotive

    E-Print Network [OSTI]

    Awtar, Shorya

    . Introduction & Basis of RSM 1. History of RSM 2. What's RSM 3. Why is RSM 4. Least square method 5. Design Of Experiment (DOE) II. Its application to automotive suspension designs 1. Size optimization for beam stiffens and Basis of Response surface Methodology (RSM) #12;Toyota Central R&D Labs., Inc 4 History of RSM 1951 Box

  6. FRENCH APPROVAL PROCEDURES FOR PYROTECHNICAL AUTOMOTIVE SAFETY

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    equipments such gas generators for airbag modules or seat-belt pretensioners, pyrotechnic relay compositions and/or igniters inside those gas generators fall into that case. The approval procedure, test methods specify that pyrotechnical devices for automotive safety, relay compositions and igniters in such devices

  7. Automotive Spray Paint Simulation Jonathan Konieczny1,

    E-Print Network [OSTI]

    Meyer, Gary

    Automotive Spray Paint Simulation Jonathan Konieczny1, , John Heckman2 , Gary Meyer1 , Mark Manyen2 for the simulation of spray painting. Head mounted display goggles are combined with a tracking system to allow users to paint a virtual surface with a spray gun. Ray tracing is used to simulate droplets landing

  8. Application, Rendering and Display of Automotive Paint

    E-Print Network [OSTI]

    Meyer, Gary

    Application, Rendering and Display of Automotive Paint by Jonathan Konieczny Dr Gary W. MeyerPont Paints was kind enough to allow us to visit their own paint testing facility and track their spray painters using real spray guns. The data gathered from that visit was essential to creating the spray paint

  9. Autonomous inverted helicopter flight via reinforcement learning

    E-Print Network [OSTI]

    Thrun, Sebastian

    Autonomous inverted helicopter flight via reinforcement learning Andrew Y. Ng 1 , Adam Coates 1 Computer Science Department, Stanford University, Stanford, CA 94305 2 Whirled Air Helicopters, Menlo Park, CA 94025 Abstract. Helicopters have highly stochastic, nonlinear, dynamics, and autonomous helicopter

  10. Autonomous inverted helicopter flight via reinforcement learning

    E-Print Network [OSTI]

    Thrun, Sebastian

    Autonomous inverted helicopter flight via reinforcement learning Andrew Y. Ng1 , Adam Coates1 Science Department, Stanford University, Stanford, CA 94305 2 Whirled Air Helicopters, Menlo Park, CA 94025 Abstract. Helicopters have highly stochastic, nonlinear, dynamics, and autonomous helicopter

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

    E-Print Network [OSTI]

    Tolbert, Leon M.

    of Automotive Engineers, Inc. ABSTRACT This paper describes the development of advanced control and modeling. REAL-TIME TEST BED A real-time computing platform has been developed as a test bed to efficiently

  12. In Vivo Biomechanics of the Fingerpad Skin Under Local Tangential Traction

    E-Print Network [OSTI]

    Hayward, Vincent

    In Vivo Biomechanics of the Fingerpad Skin Under Local Tangential Traction Qi Wang and Vincent tested in vivo for their biomechanical properties under tangential loading and for large deforma- tions words: Fingerpad skin properties; In vivo tissue measurement; Biomechanics; Fingers. Word count (main

  13. Automotion of domain walls for spintronic interconnects

    SciTech Connect (OSTI)

    Nikonov, Dmitri E.; Manipatruni, Sasikanth; Young, Ian A.

    2014-06-07

    We simulate “automotion,” the transport of a magnetic domain wall under the influence of demagnetization and magnetic anisotropy, in nanoscale spintronic interconnects. In contrast to spin transfer driven magnetic domain wall motion, the proposed interconnects operate without longitudinal charge current transfer, with only a transient current pulse at domain wall creation and have favorable scaling down to the 20?nm dimension. Cases of both in-plane and out-of-plane magnetization are considered. Analytical dependence of the velocity of domain walls on the angle of magnetization are compared with full micromagnetic simulations. Deceleration, attenuation and disappearance, and reflection of domain walls are demonstrated through simulation. Dependences of the magnetization angle on the current pulse parameters are studied. The energy and delay analysis suggests that automotion is an attractive option for spintronic logic interconnects.

  14. Platform Based Design for Automotive Sensor Conditioning

    E-Print Network [OSTI]

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

    2011-01-01

    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.

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

    E-Print Network [OSTI]

    Hardin, Christopher William

    2004-01-01

    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 ...

  16. 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

  17. 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 (TEG) designed for automotive waste heat recovery systems. This model is capable of computing telluride TEMs. Key words: Thermoelectric generators, waste heat recovery, automotive exhaust, skutterudites

  18. Diagnosis in Automotive Systems: A Survey PATRICK E. LANIGAN, SOILA KAVULYA and PRIYA NARASIMHAN

    E-Print Network [OSTI]

    Diagnosis in Automotive Systems: A Survey PATRICK E. LANIGAN, SOILA KAVULYA and PRIYA NARASIMHAN-3890 Abstract Modern automotive electronic control systems are distributed, networked embedded systems was supported in part by General Motors Company. #12;Keywords: diagnosis, automotive, safety, agreement

  19. 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

  20. 16th Automotive Research Center Conference16th Automotive Research Center Conference May 10-11, 2010May 10-11, 2010

    E-Print Network [OSTI]

    Papalambros, Panos

    16th Automotive Research Center Conference16th Automotive Research Center Conference May 10-11, 2010May 10-11, 2010 Sponsored by the U.S. Army TARDEC- National Automotive Center 7:30 am Check, Director, National Automotive Center Mr. Sharad Kumar, Senior Director, Systems. Engineering, GDLS Mr

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

    SciTech Connect (OSTI)

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

    2002-09-30

    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.

  2. Sandia Energy - ECIS-Automotive Fuel Cell Corporation: Hydrocarbon...

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

    ECIS-Automotive Fuel Cell Corporation: Hydrocarbon Membrane Fuels the Success of Future Generation Vehicles Home Energy Transportation Energy CRF Partnership Energy Efficiency...

  3. Welding of Dissimilar Materials Combinations for Automotive Applicatio...

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

    0, 2011 Welding of Dissimilar Materials Combinations for Automotive Applications Jerry E. Gould Technology Leader Resistance and Solid State Welding ph: 614-688-5121 e-mail:...

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

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

    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 Global...

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

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

    Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Automotive Fuel Efficiency Improvement via Exhaust Gas Waste Heat Conversion to Electricity Working...

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

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

    deer09yang2.pdf More Documents & Publications Engineering and Materials for Automotive Thermoelectric Applications Electrical and Thermal Transport Optimization of High...

  7. Automotive Fuels - The Challenge for Sustainable Mobility | Department...

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

    Fuels - The Challenge for Sustainable Mobility Automotive Fuels - The Challenge for Sustainable Mobility Overview of challenges and future fuel options deer12warnecke.pdf More...

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

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

    Opportunities and Challenges of Thermoelectrlic Waste Heat Recovery in the Automotive Industry On Thermoelectric Properties of p-Type Skutterudites Development of...

  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. Automotive Thermoelectric Moduleswith Scalable Thermo- andElectro...

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

    Moduleswith Scalable Thermo- and Electro-Mechanical Interfaces Automotive Thermoelectric Moduleswith Scalable Thermo- and Electro-Mechanical Interfaces Interface materials based on...

  11. Development of Thermoelectric Technology for Automotive Waste Heat Recovery

    Broader source: Energy.gov [DOE]

    Overview and status of project to develop thermoelectric generator for automotive waste heat recovery and achieve at least 10% fuel economy improvement.

  12. 21 2008, 12:00, Idle Gear Rattle in Manual Automotive Transmissions

    E-Print Network [OSTI]

    Psarrakos, Panayiotis

    21 2008, 12:00, , (). Idle Gear Rattle in Manual Automotive Transmissions) phenomena in Automotive Powertrain Systems, dynamic analysis of medical devices and virtual prototype

  13. Automotive Lithium-ion Battery Supply Chain and U.S. Competitiveness...

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

    Automotive Lithium-ion Battery Supply Chain and U.S. Competitiveness Considerations Automotive Lithium-ion Battery Supply Chain and U.S. Competitiveness Considerations This Clean...

  14. US DOE Sponsored Graduate Automotive Technology Education (GATE) Program at Penn State Emphasizing

    E-Print Network [OSTI]

    Lee, Dongwon

    US DOE Sponsored Graduate Automotive Technology Education (GATE) Program at Penn State Emphasizing in the automotive industry and academia. Develop relationships between GATE students, faculty, employers

  15. Sources of UHC and CO in Low Temperature Automotive Diesel Combustion...

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

    UHC and CO in Low Temperature Automotive Diesel Combustion Systems Sources of UHC and CO in Low Temperature Automotive Diesel Combustion Systems Presentation given at the 16th...

  16. United States Automotive Materials Partnership LLC (USAMP)

    SciTech Connect (OSTI)

    United States Automotive Materials Partnership

    2011-01-31

    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

  17. 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

  18. Traction force microscopy on soft elastic substrates: a guide to recent computational advances

    E-Print Network [OSTI]

    Ulrich S. Schwarz; Jerome R. D. Soine

    2015-06-08

    The measurement of cellular traction forces on soft elastic substrates has become a standard tool for many labs working on mechanobiology. Here we review the basic principles and different variants of this approach. In general, the extraction of the substrate displacement field from image data and the reconstruction procedure for the forces are closely linked to each other and limited by the presence of experimental noise. We discuss different strategies to reconstruct cellular forces as they follow from the foundations of elasticity theory, including two- versus three-dimensional, inverse versus direct and linear versus non-linear approaches. We also discuss how biophysical models can improve force reconstruction and comment on practical issues like substrate preparation, image processing and the availability of software for traction force microscopy.

  19. IT Support for Release Management Processes in the Automotive Industry

    E-Print Network [OSTI]

    Ulm, Universität

    IT Support for Release Management Processes in the Automotive Industry Dominic M¨uller1,2 , Joachim equipment. Different life cycle times of mechanical, software and hardware components as well as different In the automotive industry, car development has been dramatically influenced by the introduction of electrical

  20. Architectures of Automotive Electrical and Electronics (E/E) Systems

    E-Print Network [OSTI]

    Navet, Nicolas

    1 Architectures of Automotive Electrical and Electronics (E/E) Systems Nicolas Navet Complexity Mastered Teaching slides Can be freely used for teaching Outline 1. Architecture of Automotive Embedded processg gy ­ Lack of background in E/E at management level often mechanical background ­ Lack of clear

  1. ME 374D Automotive Engineering laboratory ABET EC2000 syllabus

    E-Print Network [OSTI]

    Ben-Yakar, Adela

    . Awareness of contemporary issues in engineering practice, including economic, social, political the ability to: A. Apply principles of engineering, basic science, and mathematics (including multivariateME 374D ­ Automotive Engineering laboratory Page 1 ABET EC2000 syllabus ME 374D ­ Automotive

  2. Towards Computational Resources-Aware Control Solutions for Automotive CPS

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Towards Computational Resources-Aware Control Solutions for Automotive CPS Jonathan Sprinkle and Ricardo G. Sanfelice University of Arizona Abstract Automotive cyber-physical systems will need to address platforms, component based design, dynamic adaptation, and modeling languages and conventions. 2 Current

  3. Radio-Frequency Inverters With Transmission-Line Input Networks

    E-Print Network [OSTI]

    Phinney, Joshua W.

    A soft-switching inverter topology (the Class Phi ) is presented which draws dc source current through a transmission line or a lumped-network approximation of a distributed line. By aligning the inverter switching frequency ...

  4. Waste audit study: Automotive paint shops

    SciTech Connect (OSTI)

    Not Available

    1987-01-01

    This report presents the results of a waste-audit study of automotive paint shops. The study focuses on the types and quantities of wastes generated, treatment and disposal alternatives, and the potential for reducing the amount and/or toxicity of waste generated. The analysis of solvent waste minimization focused primarily on in-plant modifications (e.g., source reduction) to reduce the generation of solvent waste. Strict inventory control is the most-readily implementable approach. While in-house recycling is viable, it is usually only cost-effective for larger firms. Specific recommendations for waste reduction were made.

  5. NREL: Transportation Research - Future Automotive Systems Technology

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration wouldMass map shines lightGeospatial ToolkitSMARTSWorking With UsSimulator Future Automotive

  6. Bright 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 Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC JumpBiossence JumpJerseyEconomyBridger Valley Elec Assn,Automotive

  7. IMPROVED DENSITY ESTIMATORS FOR INVERTIBLE LINEAR PROCESSES

    E-Print Network [OSTI]

    Wefelmeyer, Wolfgang

    IMPROVED DENSITY ESTIMATORS FOR INVERTIBLE LINEAR PROCESSES Anton Schick Department of Mathematical-statistic with kernel of the form K(x) = k(x - ay)k(y) dy. Schick and Wefelmeyer (2004b, 2007a) prove functional central and Schick (2007) obtain similar results for derivatives of convolutions. Schick and Wefelmeyer (2008b

  8. High-Efficiency Inverter for Photovoltaic Applications

    E-Print Network [OSTI]

    Perreault, Dave

    , photovoltaic power systems, AC module. I. INTRODUCTION A. Motivation and Background The market for roof and associated con- trol method suitable for high efficiency DC to AC grid-tied power conversion. This approach) applications. The topology is based on a series resonant inverter, a high frequency transformer, and a novel

  9. Inferring Ancestral Chloroplast Genomes with Inverted Repeat

    E-Print Network [OSTI]

    Tang, Jijun

    Inferring Ancestral Chloroplast Genomes with Inverted Repeat Liying Cui # , Feng Yue + , Claude W 87131 Abstract--- Genome evolution is shaped not only by nucleotide substitutions, but also by structural changes including gene and genome duplications, inser­ tions/deletions and gene order

  10. Smart Grid Inverters for High-Penetration PV Applications

    E-Print Network [OSTI]

    Smart Grid Inverters for High- Penetration PV Applications Hawai`i Natural Energy Institute of recognized energy industry leaders working to develop enhanced capability smart inverters and to demonstrate by deploying and evaluating smart inverters on operating utility distribution feeders in two locations

  11. ORNL/TM-2000/283 THE COST OF AUTOMOTIVE POLYMER COMPOSITES

    E-Print Network [OSTI]

    ORNL/TM-2000/283 THE COST OF AUTOMOTIVE POLYMER COMPOSITES: A REVIEW AND ASSESSMENT OF DOE of Automotive Polymer Composites ORNL/TM-2000/283 iii TABLE OF CONTENTS LIST OF TABLES.................................................................................................................................33 #12;Cost of Automotive Polymer Composites ORNL/TM-2000/283 iv #12;Cost of Automotive Polymer

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

    E-Print Network [OSTI]

    Short, Daniel

    2007-01-01

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

  13. A Consortium of the United States Council for Automotive Research Nondestructive Evaluation Steering Committee

    E-Print Network [OSTI]

    Knowles, David William

    A Consortium of the United States Council for Automotive Research Nondestructive Evaluation Automotive Industry September 6, 2006 United States Automotive Materials Partnership, A Consortium of the United States Council for Automotive Research 1000 Town Center Building, Suite 300 Southfield, MI 48075

  14. Challenges in the Modeling and Quantitative Analysis of Safety-Critical Automotive Systems!

    E-Print Network [OSTI]

    Leue, Stefan

    Challenges in the Modeling and Quantitative Analysis of Safety-Critical Automotive Systems! #12;Joint work with! 2! Matthias Kuntz and Bernd Reh TRW Automotive Stefan Leue Univeristy of Konstanz #12;Outline! ! Safety-Critical Automotive Systems! Safety Analysis Methods in the Automotive Domain

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

    E-Print Network [OSTI]

    of the automotive industry and automotive industry standards. Programme This minor consists out of an introduction context, it widens even further. The automotive industry is one of the most complex ones, in terms Automotive Design "I believe, the most significant thing happening in the global car design industry

  16. Potential automotive uses of wrought magnesium alloys

    SciTech Connect (OSTI)

    Gaines, L.; Cuenca, R.; Wu, S. [Argonne National Lab., IL (United States); Stodolsky, F. [Argonne National Lab., IL (United States)]|[Argonne National Lab., Washington, DC (United States)

    1996-06-01

    Vehicle weight reduction is one of the major means available to improve automotive fuel efficiency. High-strength steels, aluminum (Al), and polymers are already being used to reduce weight significantly, but substantial additional reductions could be achieved by greater use of low-density magnesium (Mg) and its alloys. Mg alloys are currently used in relatively small quantities for auto parts, generally limited to die castings (e.g., housings). Argonne National Laboratory`s Center for Transportation Research has performed a study for the Lightweight Materials Program within DOE`s Office of Transportation Materials to evaluate the suitability of wrought Mg and its alloys to replace steel/aluminum for automotive structural and sheet applications. Mg sheet could be used in body nonstructural and semi-structural applications, while extrusions could be used in such structural applications as spaceframes. This study identifies high cost as the major barrier to greatly increased Mg use in autos. Two technical R and D areas, novel reduction technology and better hot-forming technology, could enable major cost reductions.

  17. 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, formedABSTRACT Does the world need yet another solar inverter concept? Intermediate size inverters have in 2008 from an established design-engineering firm, looked at the offerings, talked with installers

  18. Next Generation Inverter | 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 RankADVANCED MANUFACTURINGEnergy Bills and Reduce Carbon PollutionZealand JoinsJune 1,ofInverter Next

  19. Electromagnetic interference filter for automotive electrical systems

    DOE Patents [OSTI]

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

    2013-07-02

    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.

  20. Applications of color powder paint in the automotive industry

    E-Print Network [OSTI]

    Barberich, Bevin, 1975-

    2004-01-01

    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 ...

  1. Analysis of Automotive Turbocharger Nonlinear Response Including Bifurcations 

    E-Print Network [OSTI]

    Vistamehr, Arian

    2010-10-12

    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 ...

  2. Automotive Thermoelectric Moduleswith Scalable Thermo- and Electro-Mechanical Interfaces

    Broader source: Energy.gov [DOE]

    Interface materials based on carbon nanotubes and metallic alloys, scalable p- and n-type thermoelectrics, materials compatibility for improved reliability, and performance targets for automotive applications are discussed

  3. Enhancing the conceptual design process of automotive exterior systems

    E-Print Network [OSTI]

    Diaz Dominguez, David

    2011-01-01

    Product development cycles in the automotive industry are being reduced and competition is more demanding than ever before. To be successful in this environment, Original Equipment Manufacturers need a product development ...

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

    E-Print Network [OSTI]

    Chacko, John

    2008-01-01

    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 ...

  5. The dynamics of supply chains in the automotive industry

    E-Print Network [OSTI]

    Braese, Niklas

    2005-01-01

    This thesis looks at how supply chains in the automotive industry operate from the perspective of the manufacturers. The study includes the industry structure, the top players in the industry, factors that drive the industry, ...

  6. Lean product development for the automotive niche vehicle marketplace

    E-Print Network [OSTI]

    Kupczewski, Celeste D., 1974-

    2005-01-01

    The automotive low volume niche vehicle marketplace is growing, evidenced by increasing media coverage and fierce competition between original equipment manufacturers. Development of niche vehicles must be lean and therefore ...

  7. Green automotive supply chain for an emerging market

    E-Print Network [OSTI]

    Fisch, Gene (Gene Joseph)

    2008-01-01

    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 ...

  8. Implications of two-sided advertising in the automotive industry

    E-Print Network [OSTI]

    Luke, Jeffrey O. (Jeffrey Oliver), 1967-

    2004-01-01

    The extreme competition in the automotive industry results in razor-thin profit margins as original equipment manufacturers (OEMs) compete for market share and profits which increase shareholder value. Product differentiation ...

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

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

    Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3 Automotive Waste Heat Conversion to Electric Power using Skutterudites, TAGS, PbTe and Bi2Te3 Presentation given at DEER...

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

    E-Print Network [OSTI]

    Franken, Joseph P., II (Joseph Philip)

    2012-01-01

    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 ...

  11. Battery Lifetime-Aware Automotive Climate Control for Electric Vehicles

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    Battery Lifetime-Aware Automotive Climate Control for Electric Vehicles Korosh Vatanparvar) optimization involves stringent con- straints on driving range and battery lifetime. Sophisticated embedded systems and huge number of computing resources have enabled re- searchers to implement advanced Battery

  12. The investigation of exhaust powered, automotive air cycle air conditioning 

    E-Print Network [OSTI]

    Holley, James Andrew

    1978-01-01

    TEE INVESTIGATION OF EXHAUST POWERED, AUTOMOTIVE AIR CYCLE AIR CONDITIONING A Thesis James Andrew Holley Submitted to the Graduate College of Texas ASM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE... August 1978 Major SubJect: Mechanical Engineering THE INVESTIGATION OF EXHAUST POWERED, AUTOMOTIVE AIR CYCLE AIR CONDITIONING A Thesis hy James Andrew Holley Approved as to style and content by: Chairman of Committee) (Head of Departm nt) Memb e...

  13. Meeting the Embedded Design Needs of Automotive Applications

    E-Print Network [OSTI]

    Lyons, Wayne

    2011-01-01

    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.

  14. Abstract--The power requirements of automotive alternators are increasing significantly due to the introduction of new

    E-Print Network [OSTI]

    Perreault, Dave

    Abstract-- The power requirements of automotive alternators are increasing significantly due. INTRODUCTION The output power and power density requirements of automotive alternators are increasing research into the design of automotive generators, ranging from improvements to conventional Lundell

  15. Multilevel cascade voltage source inverter with separate DC sources

    DOE Patents [OSTI]

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

    1997-06-24

    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.

  16. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

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

    1997-01-01

    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.

  17. Multilevel cascade voltage source inverter with seperate DC sources

    DOE Patents [OSTI]

    Peng, Fang Zheng; Lai, Jih-Sheng

    2001-04-03

    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 seperate DC sources

    DOE Patents [OSTI]

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

    2002-01-01

    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.

  19. A multilevel voltage-source inverter with separate dc sources...

    Office of Scientific and Technical Information (OSTI)

    conditioning, series compensation, phase shifting, voltage balancing, fuel cell and photovoltaic utility systems interfacing, etc. The new M-level inverter consists of (M-1)2...

  20. Smart-Grid Ready PV Inverters with Utility Communication

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

    INTEGRATION Smart-Grid Ready PV Inverters with Utility Communication Electric Power Research Institute Brian Seal, Tom Key, Aminul Huque, Lindsey Rogers Technical Contact Brian...

  1. Building America Whole-House Solutions for Existing Homes: Inverted...

    Energy Savers [EERE]

    along the attic floor, which saves energy by placing heating, ventilating, and air-conditioning (HVAC) ductwork within the home's thermal boundary. Inverted Attic Bulkhead for...

  2. Inverter testing at Sandia National Laboratories Ginn, J.W.;...

    Office of Scientific and Technical Information (OSTI)

    National Labs., Albuquerque, NM (United States). Photovoltaic System Components Dept. 14 SOLAR ENERGY; INVERTERS; PHOTOVOLTAIC POWER PLANTS; PHOTOVOLTAIC POWER SUPPLIES; POWER...

  3. Separating myths from reality in PV inverter reliability

    E-Print Network [OSTI]

    Rollins, Andrew M.

    . · This is based upon a LCOE of 5 cents per kWh, so reliability is critical · MTBF of string inverters in 2006: 5

  4. Vehicle Technologies Office Merit Review 2015: Next Generation Inverter

    Broader source: Energy.gov [DOE]

    Presentation given by General Motors at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about next generation inverter.

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

    SciTech Connect (OSTI)

    2012-01-30

    Solar ADEPT Project: PV inverters convert DC power generated by modules into usable AC power. IPC’s 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 IPC’s 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 IPC’s $/W manufacturing cost in half, as well as further reduce indirect shipping and installation costs.

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

    E-Print Network [OSTI]

    Noé, Reinhold

    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

  7. Design considerations for an automotive magnetorheological brake Kerem Karakoc, Edward J. Park *, Afzal Suleman

    E-Print Network [OSTI]

    Park, Edward

    Design considerations for an automotive magnetorheological brake Kerem Karakoc, Edward J. Park *, Afzal Suleman Department of Mechanical Engineering, University of Victoria, P.O. Box 3055, STN CSC February 2008 Available online xxxx Keywords: Mechatronic design Magnetorheological fluid Automotive brake

  8. U.S. Department of Energy and the Automotive X PRIZE Foundation...

    Office of Environmental Management (EM)

    the Automotive X PRIZE Foundation to Promote Clean, Energy-Efficient Vehicles U.S. Department of Energy and the Automotive X PRIZE Foundation to Promote Clean, Energy-Efficient...

  9. A New SiC-based DPF for the Automotive Industry | Department...

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

    A New SiC-based DPF for the Automotive Industry A New SiC-based DPF for the Automotive Industry Evaluation and example of performance of a new SiC-based diesel particulate filter...

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

    SciTech Connect (OSTI)

    1998-03-01

    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.

  11. Strategies for Burr Minimization and Cleanability in Aerospace and Automotive Manufacturing

    E-Print Network [OSTI]

    Ávila, Miguel C.; Gardner, Joel D.; Reich-Weiser, Corinne; Vijayaraghavan, Athulan; Dornfeld, David

    2006-01-01

    platform to scholars worldwide. 05AMT-17 Strategies for Burr Minimization and Cleanability in Aerospace and Automotive

  12. 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 ...

  13. Optimal Dispatch of Photovoltaic Inverters in Residential Distribution Systems

    E-Print Network [OSTI]

    Giannakis, Georgios

    Optimal Dispatch of Photovoltaic Inverters in Residential Distribution Systems Emiliano Dall. The increased penetration of roof-top photovoltaic (PV) systems has highlighted pressing needs to address power--Distribution networks, inverter control, optimal power flow (OPF), photovoltaic (PV) systems, sparsity, voltage

  14. 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

  15. Static Score Bucketing in Inverted Indexes Chavdar Botev

    E-Print Network [OSTI]

    Fontoura, Marcus F.

    Static Score Bucketing in Inverted Indexes Chavdar Botev Cornell University 4130 Upson Hall Ithaca results when the entire inverted lists cannot be pro- cessed. This heuristic, however, increases the cost of index generation and requires complex index build algorithms. In this paper, we study a new index

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

    E-Print Network [OSTI]

    Awad, Nadim Mansour

    1987-01-01

    ] ) 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...

  17. REQUIREMENTS FOR THE WORKFLOW-BASED SUPPORT OF RELEASE MANAGEMENT PROCESSES IN THE AUTOMOTIVE SECTOR

    E-Print Network [OSTI]

    Ulm, Universität

    the automotive industry currently has to master is the complexity of the electrical/electronic system of a carREQUIREMENTS FOR THE WORKFLOW-BASED SUPPORT OF RELEASE MANAGEMENT PROCESSES IN THE AUTOMOTIVE role since its quality is correlated with the resulting product quality. Therefore the automotive

  18. Virtual Prototyping Examples for Automotive Industries Fan Dai, Wolfgang Felger, Thomas Fruhauf,

    E-Print Network [OSTI]

    Zachmann, Gabriel

    Virtual Prototyping Examples for Automotive Industries Fan Dai, Wolfgang Felger, Thomas Fr­ ical prototypes. In the automotive industries, CAD and CAE systems are widely used. This provides a good basis for virtual prototyping. This vision is therefore extremely interesting for automotive in

  19. Superquadrics based 3D object representation of automotive parts utilizing part decomposition

    E-Print Network [OSTI]

    Abidi, Mongi A.

    Superquadrics based 3D object representation of automotive parts utilizing part decomposition Yan representation strategy for automotive parts in this paper. Starting from a 3D watertight surface model, a part, in our case automotive parts , efficiently into meaningful single parts. And our proposed superquadric

  20. Multi-source software on multicore automotive ECUs -Combining runnable sequencing with task

    E-Print Network [OSTI]

    Navet, Nicolas

    Multi-source software on multicore automotive ECUs - Combining runnable sequencing with task for computing power is quickly increasing in the automotive domain, car manu- facturers and tier-one suppliers requirements such as the ISO 26262 and the implementation of other automotive use-cases. These new features

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

    E-Print Network [OSTI]

    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

  2. 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

  3. Minimizing Response Times of Automotive Dataflows on Multicore Glenn A. Elliott

    E-Print Network [OSTI]

    Anderson, James

    Minimizing Response Times of Automotive Dataflows on Multicore Glenn A. Elliott , Namhoon Kim software architectures are prevalent in prototypes of advanced automotive systems, for both driver-processing components in prototypes of ad- vanced automotive systems, for both driver-assisted and au- tonomous driving

  4. 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 (Navet et al., 2005). The strong cost pressure in the automotive industry re- quires the hardware

  5. 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

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

    E-Print Network [OSTI]

    Navet, Nicolas

    Trends in Automotive Communication Systems NICOLAS NAVET, YEQIONG SONG, FRANÇOISE 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

  7. 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

  8. 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

  9. 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

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

    E-Print Network [OSTI]

    Navet, Nicolas

    2006-01-01

    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

  11. 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

  12. 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

  13. Unreliable Data Transmissions and Limited Hardware Communication Buffers in Automotive E/E Virtual Prototypes

    E-Print Network [OSTI]

    Teich, Jürgen

    Unreliable Data Transmissions and Limited Hardware Communication Buffers in Automotive E/E Virtual automotive E/E architectures requires a thorough sys- tem evaluation already in early design phases. This can validation. A case-study from the automotive infotainment domain highlights the benefit that results from

  14. 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

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

    E-Print Network [OSTI]

    Navet, Nicolas

    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

  16. 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

  17. 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

  18. 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

  19. "Hands Busy, Eyes Busy": Generating Stories from Sensor Data for Automotive applications

    E-Print Network [OSTI]

    Reiter, Ehud

    "Hands Busy, Eyes Busy": Generating Stories from Sensor Data for Automotive applications Joe to support "hands busy, eyes busy" automotive applications. It outlines a hierarchy of complexity of output, eyes busy" automotive ap- plications. Of particular interest is a review of how technolo- gies

  20. Consequences of Modular Controller Development for Automotive Powertrains: A Case Study

    E-Print Network [OSTI]

    Stefanopoulou, Anna

    Consequences of Modular Controller Development for Automotive Powertrains: A Case Study A. G structure for automotive power- trains has certain bene ts. These include improved pro- ductivity through- dently. Due to the fact that the automotive powertrain system contains many highly interactive sub

  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. Functional Modeling Compiler for System-Level Design of Automotive Cyber-Physical Systems

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    Functional Modeling Compiler for System-Level Design of Automotive Cyber-Physical Systems Presented A typical Cyber-Physical System (CPS) such as the modern automotive includes not only the physical domains. An example of CPS: a modern automotive More than 70 ECUs More than 5 bus systems More than 10

  3. Parallel Constraint Handling in a Multiobjective Evolutionary Algorithm for the Automotive

    E-Print Network [OSTI]

    Montgomery, James

    Parallel Constraint Handling in a Multiobjective Evolutionary Algorithm for the Automotive through parallelisation only after increasing the complexity of the problem. Index Terms--Automotive The automotive industry takes advantage of mass production by fitting vehicles of the same type or series

  4. Industrial motivation for interactive shape modeling: a case study in conceptual automotive design

    E-Print Network [OSTI]

    Toronto, University of

    Industrial motivation for interactive shape modeling: a case study in conceptual automotive design illus- trated within the space of conceptual automotive design. Automo- tive design provides a unique but automotive designers almost exclusively work with sketches, clay and other traditional media. Design

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

    E-Print Network [OSTI]

    Koutsoukos, Xenofon D.

    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

  6. 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

  7. 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

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

    E-Print Network [OSTI]

    Tourneret, Jean-Yves

    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

  9. A Unified Approach for Active Safety in Automotive Cyber Physical Annalisa Scacchioli

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    A Unified Approach for Active Safety in Automotive Cyber Physical Systems Annalisa Scacchioli Abstract-- This position paper discusses limitations of the current automotive transportation active safety of safety remains one of the most serious challenges in automotive transportation at a global scale

  10. 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

  11. Experiences with Applying STPA to Software-Intensive Systems in the Automotive

    E-Print Network [OSTI]

    Wagner, Stefan

    Experiences with Applying STPA to Software-Intensive Systems in the Automotive Domain Asim in the automotive industries: Adaptive Cruise Control (ACC). The results of the application of STPA to our case can result in accidents. Safety critical-systems are increasingly used in the automotive industry

  12. AutoMoDe Notations, Methods, and Tools for Model-Based Development of Automotive Software

    E-Print Network [OSTI]

    Braun, Peter

    05AE-268 AutoMoDe ­ Notations, Methods, and Tools for Model-Based Development of Automotive describes the first results from the AutoMoDe project (Automotive Model-based Development), where an integrated methodology for model-based development of automotive control software is being developed

  13. AutoPlug: An Open Experimental Platform for Automotive ECU Testing, Updates and Verification

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    AutoPlug: An Open Experimental Platform for Automotive ECU Testing, Updates and Verification Rahul In 2010, over 20.3 million vehicles were recalled. Software issues related to automotive controls to evaluate automotive controls in a realistic and open setting. We have developed AutoPlug, an automo- tive

  14. 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

  15. COMET: A Component-Based Real-Time Database for Automotive Systems Dag Nystrom

    E-Print Network [OSTI]

    COMET: A Component-Based Real-Time Database for Automotive Systems Dag Nystr¨om , Aleksandra With the increase of complexity in automotive control systems, the amount of data that needs to be managed is also-constrained automotive control systems, denoted the COMET development suit. Using software engineer- ing tools to assist

  16. Multi-Disciplinary Integrated Design Automation Tool for Automotive Cyber-Physical Systems

    E-Print Network [OSTI]

    Al Faruque, Mohammad Abdullah

    Multi-Disciplinary Integrated Design Automation Tool for Automotive Cyber-Physical Systems for the development of multi-disciplinary automotive cyber- physical systems. We show how system-level simulation. INTRODUCTION The current automotive design process is complex and multi- disciplinary. The design is passed

  17. DOE Automotive Composite Materials Research: Present and Future Efforts

    SciTech Connect (OSTI)

    Warren, C.D.

    1999-08-10

    One method of increasing automotive energy efficiency is through mass reduction of structural components by the incorporation of composite materials. Significant use of glass reinforced polymers as structural components could yield a 20--30% reduction in vehicle weight while the use of carbon fiber reinforced materials could yield a 40--60% reduction in mass. Specific areas of research for lightweighting automotive components are listed, along with research needs for each of these categories: (1) low mass metals; (2) polymer composites; and (3) ceramic materials.

  18. 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

  19. Electric machine and current source inverter drive system

    DOE Patents [OSTI]

    Hsu, John S

    2014-06-24

    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.

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

    E-Print Network [OSTI]

    environments ­Path to low cost (sensor) at 500k qty ­Develop test rig for sensor evaluation · Program Evaluation ­ UTRC Benchmark Sensor Test ­ IIT Sensor Test & Refinement ­ UTRC Program Lead And Evaluation UTCDevelopment of Sensors for Automotive PEM-based Fuel Cells DOE Agreement DE-FC04-02AL67616 Brian

  1. Automotive Stirling Engine Mod I design review report. Volume III

    SciTech Connect (OSTI)

    Not Available

    1982-08-01

    This volume, No. 3, of the Automotive Stirling Engine Mod 1 Design Review Report contains a preliminary parts list and detailed drawings of equipment for the basic Stirling engine and for the following systems: vehicular Stirling Engine System; external heat system; hot and cold engine systems; engine drive; controls and auxiliaries; and vehicle integration. (LCL)

  2. The Progressive Insurance Automotive X PRIZE Education Program

    SciTech Connect (OSTI)

    Robyn Ready

    2011-12-31

    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.

  3. Digital Styling for Designers: in Prospective Automotive Design

    E-Print Network [OSTI]

    Toronto, University of

    design studios are introducing a high resolution large-display H/W, so called a power wallDigital Styling for Designers: in Prospective Automotive Design Seok-Hyung Bae and Ryugo Kijima) the digital design sketch, (b) real-size spline curve modification system, and (c) direct 3D shape creation

  4. 10 Questions for an Automotive Engineer: Thomas Wallner

    Broader source: Energy.gov [DOE]

    Meet Thomas Wallner – automotive engineer extraordinaire, who hails from Argonne National Laboratory’s Center for Transportation Research. He took some time to answer our 10 Questions and share his insight on advanced engine technologies from dual-fuel to biofuels.

  5. Direct Comparison of Inverted and Non-Inverted Growths of GaInP Solar Cells: Preprint

    SciTech Connect (OSTI)

    Steiner, M. A.; Geisz, J. F.; Reedy Jr, R.C.; Kurtz, S.

    2008-05-01

    The inverted growth of III-V solar cells presents some specific challenges that are not present in regular, non-inverted growths. Because the highly doped top contact layer is grown first, followed by the lengthy high-temperature growth of the remainder of the structure, there is ample time for the dopants in the contact layer to diffuse away. This leads to an increase in the contact resistance to the top layer, and a corresponding drop in voltage. The diffusion of dopants in other layers is similarly altered with respect to the non-inverted configuration because of the change in growth sequence. We compare the dopant profiles of inverted and non-inverted structures by using secondary ion mass spectroscopy and correlate the results with the observed performance of the devices. We also describe a technique for growing a GaInAsN contact layer in the inverted configuration and show that it achieves a specific contact resistance comparable to what is normally observed in non-inverted cells.

  6. The Impact of Irradiance Time Behaviors on Inverter Sizing and Design

    E-Print Network [OSTI]

    Lehman, Brad

    The Impact of Irradiance Time Behaviors on Inverter Sizing and Design Song Chen Peng Li David Brady, Massachusetts chen.son@husky.neu.edu Abstract--This paper investigates the time behavior of over- irradiance of inverters is also proposed. Keywords ­ Inverter sizing, short-interval irradiance data, inverter protection

  7. Smart Grid Ready PV Inverters with Utility Communication

    Office of Energy Efficiency and Renewable Energy (EERE)

    Electric Power Research Institute (EPRI) will develop, implement, and demonstrate smart-grid ready inverters with grid support functionality and required communication links to capture the full...

  8. Inverted cone-shaped all-silicon photonic nanoresonators

    E-Print Network [OSTI]

    Schmitt, Sebastian W; Christiansen, Silke H

    2015-01-01

    A novel type of photonic resonator based on a silicon nanostructure with inverted cone geometry is demonstrated. After excitation with visible light, individual inverted nanocones show near-infrared photonic modes with a high quality factor (Q). A thorough mode analysis reveals that this type of nanocavity geometry sustains a multitude of strongly confined whispering gallery modes, which are characterized by efficient and directional, vertical out-coupling of near-infrared light. Investigating the relation between the inverted nanocone geometry and the mode formation leads to simple design rules that permit to control the number and wavelength of the hosted modes. The unique optical features of the suitably designed all-Si inverted nanocone resonators will raise great interest in vibrant research fields such as silicon nanolasing, optoelectronics, sensing or solar light concentration.

  9. Triple inverter pierce oscillator circuit suitable for CMOS

    DOE Patents [OSTI]

    Wessendorf; Kurt O. (Albuquerque, NM)

    2007-02-27

    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. Hydrodynamic stability of inverted annular flow in an adiabatic simulation

    SciTech Connect (OSTI)

    DeJarlais, G.; Ishii, M.; Linehan, J.

    1983-07-01

    Inverted annular flow was simulated adiabatically with turbulent water jets, issuing downward from large aspect ratio nozzles, enclosed in gas annuli. Velocities, diameters, and gas species were varied, and core jet length, shape, break-up mode, and dispersed core droplet sizes were recorded at approximately 750 data points. Inverted annular flow destabilization lead to inverted slug flow at low relative velocities, and to dispersed droplet flow at high relative velocities. For both of these transitions from inverted annular flow, core break-up length correlations were developed by extending work on free liquid jets to include this coaxial, jet disintegration phenomenon. The results show length dependence upon D/SUB J/, Re/SUB J/, We/SUB J/, ..cap alpha.. and We/SUB G. Correlations for core shape, break-up mechanisms and dispersed core droplet size were also developed, by extending the results of free jet stability, roll wave entrainment, and churn turbulent droplet stability studies.

  11. Hydrodynamic stability of inverted annular flow in an adiabatic simulation

    SciTech Connect (OSTI)

    De Jarlais, G.; Ishii, M.; Linehan, J.

    1984-01-01

    Inverted annular flow was simulated adiabatically with turbulent water jets, issuing downward from large aspect ratio nozzle, enclosed in gas annuli. Velocities, diameters, and gas species were varied, and core jet length, shape, break-up mode, and dispersed core droplet sizes were recorded at approximately 750 data points. Inverted annular flow destabilization lead to inverted slug flow at low relative velocities, and to dispersed droplet flow at high relative velocities. For both of these transitions from inverted annular flow, core break-up length correlations were developed by extending work on free liquid jets to include this coaxial, jet disintegration phenomenon. The results show length dependence upon D/sub J/, Re/sub J/, ..cap alpha.. and We/sub G, rel/. Correlations for core shape, break-up mechanisms and dispersed core droplet size were also developed, by extending the results of free jet stability, roll wave entrainment, and churn turbulent droplet stability studies.

  12. Stabilizing the dual inverted pendulum : a practical approach

    E-Print Network [OSTI]

    Barton, Taylor Wallis

    2008-01-01

    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 ...

  13. Performance of an inverted ion source

    SciTech Connect (OSTI)

    Salvadori, M. C.; Teixeira, F. S.; Sgubin, L. G.; Araujo, W. W. R.; Spirin, R. E.; Oks, E. M.; Brown, I. G.

    2013-02-15

    Whereas energetic ion beams are conventionally produced by extracting ions (say, positive ions) from a plasma that is held at high (positive) potential, with ion energy determined by the potential drop through which the ions fall in the beam formation electrode system, in the device described here the plasma and its electronics are held at ground potential and the ion beam is formed and injected energetically into a space maintained at high (negative) potential. We refer to this configuration as an 'inverted ion source.' This approach allows considerable savings both technologically and economically, rendering feasible some ion beam applications, in particular small-scale ion implantation, that might otherwise not be possible for many researchers and laboratories. We have developed a device of this kind utilizing a metal vapor vacuum arc plasma source, and explored its operation and beam characteristics over a range of parameter variation. The downstream beam current has been measured as a function of extraction voltage (5-35 kV), arc current (50-230 A), metal ion species (Ti, Nb, Au), and extractor grid spacing and beamlet aperture size (3, 4, and 5 mm). The downstream ion beam current as measured by a magnetically-suppressed Faraday cup was up to as high as 600 mA, and with parametric variation quite similar to that found for the more conventional metal vapor vacuum arc ion source.

  14. Inverted Metamorphic Multijunction (IMM) Cell Processing Instructions

    SciTech Connect (OSTI)

    Duda, A.; Ward, S.; Young, M.

    2012-02-01

    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.

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

    SciTech Connect (OSTI)

    Barlow, F.D.; Elshabini, A.

    2006-11-30

    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.

  16. Design considerations for inverters in fluid flow control 

    E-Print Network [OSTI]

    Guggari, Mallappa Ishwarappa

    1989-01-01

    . 18 power circuit of current source inverter 3. 19 Output waveforms of current source inverter 5. 1 Response of fluid flow control system to a ramp reference input . 5. 2 Load torque and acceleration torque characteristics with centrifugal pump.... The process industry specifications for flow control have also become stringent, demanding an alternative to throttle valve control system, which is plagued with problems like poor dynamic response, dead- band, etc. In the literature, most of the attention...

  17. Developing inverted pendulum as a teaching tool for controller designs 

    E-Print Network [OSTI]

    Lin, Han-Ming

    1994-01-01

    DEVELOPING INVERTED PENDULUM AS A TEACHING TOOL FOR CONTROLLER DESIGNS A Thesis by HAN-MING LIN Submitted to the Office of Graduate Studies of Texas AkM University in partial fulfillment of the requirements for the degree of MASTER... j Aug(in). I()() I Major Snbject: Flectrical Engineering ABSTRACT Developing Inverted Pendulum as a Teaching Tool for Controller Designs. (August 1994) Han-Ming Lin, B. S. , Chiao-Tung University, Taiwan Chair of Advisory Committee: Gamg M...

  18. 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

    2013-10-01

    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.

  19. Self Healing Coatings | Polymer Coatings | Automotive Paints | Hea... http://living.oneindia.in/automobiles/auto-news/2008/polymer-coati... 1 of 2 2/6/09 10:29 AM

    E-Print Network [OSTI]

    Braun, Paul

    Self Healing Coatings | Polymer Coatings | Automotive Paints | Hea... http Ring #12;Self Healing Coatings | Polymer Coatings | Automotive Paints | Hea... http.gtglass.com Automotive Paints Guaranteed Color Match. Brush or Spray. In Stock Now. Order Today! www.Automotive

  20. 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

  1. Technology Roadmap for Energy Reduction in Automotive Manufacturing

    SciTech Connect (OSTI)

    none,

    2008-09-01

    U.S. Department of Energy’s (DOE) Industrial Technologies Program (ITP), in collaboration with the United States Council for Automotive Research LLC (USCAR), hosted a technology roadmap workshop in Troy, Michigan in May 2008. The purpose of the workshop was to explore opportunities for energy reduction, discuss the challenges and barriers that might need to be overcome, and identify priorities for future R&D. The results of the workshop are presented in this report.

  2. Automotive Stirling Engine Development Program. RESD Summary report

    SciTech Connect (OSTI)

    Not Available

    1984-05-01

    This is the final report compiling a summary of the information presented and discussed at the May 1983 Automotive Stirling Engine (AES) Reference Engine System Design (RESD) review held at the NASA Lewis Research Center. The design of the engine and its auxiliaries and controls is described. Manufacturing costs in production quantity are also presented. Engine system performance predictions are discussed and vehicle integration is developed, along with projected fuel economy levels.

  3. Automotive Thermoelectric Generator (TEG) Controls | 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:FinancingPetroleum Based Fuels Research atDepartmentAuditsDepartment of(TEG) Controls Automotive

  4. Fourth annual report to Congress on the Automotive Technology Development Program

    SciTech Connect (OSTI)

    Not Available

    1983-11-01

    Program implementation and management are described. The status of conventional power-train technology is described with respect to uniform charge reciprocating Otto engine, stratified charge reciprocating Otto engine, rotary Otto engine, diesel engine, and transmissions. The three tasks of the Automotive Technology Development Program are discussed as follows; automotive gas turbine project, automotive Stirling engine development project, and the heavy duty transport technology project.

  5. Fuel Cells for Non-automotive Uses: Status and Prospects

    SciTech Connect (OSTI)

    Upreti, Girish [ORNL; Greene, David L [ORNL; Duleep, K. G. [ICF International; Sawhney, Rupinder S [ORNL

    2012-01-01

    Fuel cells are in varying stages ofcommercialization for both automotive and non-automotive applications. The fuel cell industry has made substantial progress but still needs to reduce costs and improve performance to compete successfully with established technologies. In just 5 years, costs have been reduced by a factor of two while improving efficiency and durability. Based on interviews with fuel cell manufacturers in the U.S., Japan and the EU and information from published sources, a model of non-automotive fuel cell markets is constructed and used to estimate the impacts of government policies and to project the potential evolution of the industry to 2025. The model includes the effects of learning-by-doing, scale economies and exogenous technological progress on component and system costs, estimates customer choices between fuel cell and competing established technologies, and attempts to measure the impacts of government policies. With continued policy support it appears likely that the industry can become self-sustaining within the next decade.

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

    Office of Environmental Management (EM)

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

  7. Development of a High-Efficiency Zonal Thermoelectric HVAC System for Automotive Applications

    Broader source: Energy.gov [DOE]

    Identify a technical and business approach to accelerate the deployment of light-duty automotive TE HVAC technology, maintain occupant comfort, and improve energy efficiency.

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

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

    with Experimental Validation Development of CellPack Level Models for Automotive Li-Ion Batteries with Experimental Validation 2012 DOE Hydrogen and Fuel Cells Program and...

  9. 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...

  10. Vehicle Technologies Office Merit Review 2015: Automotive Low Temperature Gasoline Combustion Engine Research

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia National Laboratories at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about automotive low...

  11. Strategies for Burr Minimization and Cleanability in Aerospace and Automotive Manufacturing

    E-Print Network [OSTI]

    Ávila, Miguel C.; Gardner, Joel D.; Reich-Weiser, Corinne; Vijayaraghavan, Athulan; Dornfeld, David

    2006-01-01

    Trans. North American Manufacturing Research Institute ,Laboratory for Manufacturing and Sustainability UC BerkeleyAerospace and Automotive Manufacturing Author: Avila, Miguel

  12. 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

    2006-12-31

    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.

  13. Factorization method and new potentials from the inverted oscillator

    SciTech Connect (OSTI)

    Bermudez, David Fernández C, David J.

    2013-06-15

    In this article we will apply the first- and second-order supersymmetric quantum mechanics to obtain new exactly-solvable real potentials departing from the inverted oscillator potential. This system has some special properties; in particular, only very specific second-order transformations produce non-singular real potentials. It will be shown that these transformations turn out to be the so-called complex ones. Moreover, we will study the factorization method applied to the inverted oscillator and the algebraic structure of the new Hamiltonians. -- Highlights: •We apply supersymmetric quantum mechanics to the inverted oscillator potential. •The complex second-order transformations allow us to build new non-singular potentials. •The algebraic structure of the initial and final potentials is analyzed. •The initial potential is described by a complex-deformed Heisenberg–Weyl algebra. •The final potentials are described by polynomial Heisenberg algebras.

  14. Hydrodynamic stability of inverted annular flow in an adiabatic simulation

    SciTech Connect (OSTI)

    De Jarlais, G.; Ishii, M.; Linehan, J.

    1986-02-01

    Inverted annular flow was simulated adiabatically with turbulent water jets, issuing downward from large aspect ratio nozzles, enclosed in gas annuli. Velocities, diameters, and gas species were varied, and core jet length, shape, breakup mode, and dispersed core droplet sizes were recorded at approximately 750 data points. Inverted annular flow destabilization led to inverted slug flow at low relative velocities, and to dispersed droplet flow, core breakup length correlations were developed by extending work on free liquid jets to include this coaxial, jet disintegration phenomenon. The results show length dependence upon D/sub J/, Re/sub J/, We/sub J/, ..cap alpha.., and We/sub G/,rel. Correlations for core shape, breakup mechanisms, and dispersed core droplet size were also developed, by extending the results of free jet stability, roll wave entrainment, and churn turbulent droplet stability studies.

  15. 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)

    2012-08-21

    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.

  16. Fact #868: April 13, 2015 Automotive Technology Has Improved Performance and Fuel Economy of New Light Vehicles – Dataset

    Broader source: Energy.gov [DOE]

    Excel file and dataset for Automotive Technology Has Improved Performance and Fuel Economy of New Light Vehicles

  17. Analytical Techniques and Operational Perspectives for a Spherical Inverted-F Antenna 

    E-Print Network [OSTI]

    Rolando, David Lee

    2012-02-14

    The spherical inverted-F antenna (SIFA) is a relatively new conformal antenna design that consists of a microstrip patch resonator on a spherical ground. The SIFA resembles a planar inverted-F antenna (PIFA) that has ...

  18. Optimal Inverter VAR Control in Distribution Systems with High PV Penetration

    E-Print Network [OSTI]

    Low, Steven H.

    and the net benefits, taking into account the additional cost of inverter losses when operating at non the substation. Index Terms--Distribution systems, volt/var control, DC/AC inverter, optimal power flow

  19. Electrochemical Energy Storage Technologies and the Automotive Industry

    ScienceCinema (OSTI)

    Mark Verbrugge

    2010-01-08

    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

  20. Occupant Protection and Rescue using Automotive Cyber-Physical Costin D. Untaroiu*

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Occupant Protection and Rescue using Automotive Cyber-Physical Systems Costin D. Untaroiu* , Jeff R. Crandall Center for Applied Biomechanics, Department of Mechanical and Aerospace Engineering, University) Background: The current trend in the automotive industry is the expanded use of embedded electronics

  1. OPTIMIZATION OF AUTOMOTIVE VALVE TRAIN COMPONENTS WITH IMPLICT , O. J. ELSINGER

    E-Print Network [OSTI]

    OPTIMIZATION OF AUTOMOTIVE VALVE TRAIN COMPONENTS WITH IMPLICT FILTERING T. D. CHOI ¡ , O. J and optimization in automotive valve train design. We extend our previous work by using a more refined model to obtain optimal profiles for camshaft lobes. Key words. Noisy Optimization, Implicit Filtering, Mechanical

  2. Comprehensive Experimental Analyses of Automotive Attack Surfaces Stephen Checkoway, Damon McCoy, Brian Kantor,

    E-Print Network [OSTI]

    Hu, Fei

    Comprehensive Experimental Analyses of Automotive Attack Surfaces Stephen Checkoway, Damon Mc discover that remote exploitation is feasible via a broad range of attack vectors (including mechanics, we discuss the structural characteristics of the automotive ecosystem that give rise to such problems

  3. 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

  4. Time-Predictable Fault Tolerant Computing for Dependable Automotive Cyber-Physical Systems

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    1 Time-Predictable Fault Tolerant Computing for Dependable Automotive Cyber-Physical Systems Wei University wzhang@vcu.edu Dependable and secure automotive cyber-physical systems (CPSs) are crucial as human and should be bypassed in future computing. This computing platform will be incorporated and evaluated

  5. Propulsion Materials FY 2002 Progress Report B. Rapid Surface Modifications of Aluminum Automotive Components for

    E-Print Network [OSTI]

    Pennycook, Steve

    , Tennessee Prime Contract No.: DE-AC05-00OR22725 Objectives · Further develop durability-enhancing coatings the time required to cure an epoxy used to join automotive body panels. · Develop a procedure for selective heat-treating of aluminum automotive body construction parts in order to soften selected areas to serve

  6. Automotive Fuel Cell Corporation SNL researcher Cy Fujimoto demonstrates his new

    E-Print Network [OSTI]

    Automotive Fuel Cell Corporation n SNL researcher Cy Fujimoto demonstrates his new flexible cell vehicle, the systems are complex and costly. For example, fuel cell vehicles run optimally when), researcher Cy Fujimoto, in partnership with Automotive Fuel Cell Cooperation (AFCC), is developing a polymer

  7. 5 kW Multilevel DC-DC Converter for Hybrid Electric and Fuel Cell Automotive

    E-Print Network [OSTI]

    Tolbert, Leon M.

    5 kW Multilevel DC-DC Converter for Hybrid Electric and Fuel Cell Automotive Applications Faisal H) for future hybrid electric vehicle and fuel cell automotive applications will be presented in this paper will impact if the 42V/14V dual bus system will be a successful and cost effective solution for future

  8. Concurrent Circuit-Level/System-Level Optimization of a 24 GHz Mixer for Automotive Applications Using a Hybrid

    E-Print Network [OSTI]

    Tentzeris, Manos

    of automotive industry in developing a number of active and passive systems to enhance road safety. A DopplerConcurrent Circuit-Level/System-Level Optimization of a 24 GHz Mixer for Automotive Applications reported so far for this frequency range and in these operating conditions. Index Terms - Automotive radar

  9. AUSTIN: A tool for Search Based Software Testing for the C Language and its Evaluation on Deployed Automotive Systems

    E-Print Network [OSTI]

    Harman, Mark

    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

  10. Cardiogram: Visual Analytics for Automotive Engineers Michael Sedlmair1, Petra Isenberg2, Dominikus Baur3, Michael Mauerer3,

    E-Print Network [OSTI]

    Isenberg, Petra

    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

  11. Computer-Aided Optimization of dc/dc Converters for Automotive Applications Timothy C. Neugebauer David J. Perreault

    E-Print Network [OSTI]

    Perreault, Dave

    Computer-Aided Optimization of dc/dc Converters for Automotive Applications Timothy C. Neugebauer/dc converters, with a focus on converters for dual-voltage automotive electrical systems. A new CAD optimization is the next evolutionary step for automotive electrical systems. High-power loads will be moved to a new high

  12. 618 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 19, NO. 3, MAY 2004 Automotive Power Generation and Control

    E-Print Network [OSTI]

    Perreault, Dave

    618 IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 19, NO. 3, MAY 2004 Automotive Power Generation developments in the application of power electronics to automotive power gener- ation and control. A new load be implemented within the existing manufacturing infrastructure. Index Terms--Automotive power generation, boost

  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--EMI filters for automotive motor drives must achieve stringent EMI specifications while meeting tight cost

    E-Print Network [OSTI]

    Perreault, Dave

    1 Abstract-- EMI filters for automotive motor drives must achieve stringent EMI specifications of filter capacitors. The proposed approach is applied to an input filter for an automotive electro are becoming widely used in automotive applications due to their high performance and efficiency. One drawback

  15. Applications of Power Electronics in Automotive Power Generation David J. Perreault, Thomas A. Keim, Jeffrey H. Lang, Leandro M. Lorilla

    E-Print Network [OSTI]

    Perreault, Dave

    Applications of Power Electronics in Automotive Power Generation David J. Perreault, Thomas A. Keim Alternator, Brushless Exciter, Contactless Power Transfer. 1. Introduction The evolution of automotive these challenges has motivated a variety of research into automotive alternator design in recent years (e.g., [1

  16. 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

  17. Laser photothermal non-destructive inspection method for hairline crack detection in unsintered automotive parts: A statistical approach

    E-Print Network [OSTI]

    Mandelis, Andreas

    automotive parts: A statistical approach Jordan Tolev n , Andreas Mandelis Center for Advanced Diffusion-destructive quality and feedback control of the metal forming process of green automotive parts. & 2010 Elsevier Ltd. Automotive compo- nents such as sprockets, clutch plates, and other parts usually operate under high strain

  18. 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

  19. 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

  20. 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-

    2004-01-01

    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 ...

  1. Optimized Triple-Junction Solar Cells Using Inverted Metamorphic Approach (Presentation)

    SciTech Connect (OSTI)

    Geisz, J. F.

    2008-11-01

    Record efficiencies with triple-junction inverted metamorphic designs, modeling useful to optimize, and consider operating conditions before choosing design.

  2. There and Back Again Arrows for Invertible Programming

    E-Print Network [OSTI]

    van Eekelen, Marko

    There and Back Again Arrows for Invertible Programming Artem Alimarine Sjaak Smetsers Arjen van roll-backs may have to be performed. The goal of our work is to set up an arrow-based framework, because more code can be reused from the arrow library. Basically, one specifies the conversion in one

  3. Minimal Schemes for Large Neutrino Mixings with Inverted Hierarchy

    E-Print Network [OSTI]

    Duane A. Dicus; Hong-Jian He; John N. Ng

    2002-05-17

    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) \

  4. 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

  5. INVERTING RADON TRANSFORMS : THE GROUP-THEORETIC Franois Rouvire

    E-Print Network [OSTI]

    Vallette, Bruno

    INVERTING RADON TRANSFORMS : THE GROUP-THEORETIC APPROACH François Rouvière Abstract of various inversion formulas from the literature on Radon transforms, obtained by group-theoretic tools such as invariant di¤erential operators and harmonic analysis. We introduce a general concept of shifted Radon

  6. High voltage power supply with modular series resonant inverters

    DOE Patents [OSTI]

    Dreifuerst, G.R.; Merritt, B.T.

    1995-07-18

    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.

  7. High voltage power supply with modular series resonant inverters

    DOE Patents [OSTI]

    Dreifuerst, Gary R. (Livermore, CA); Merritt, Bernard T. (Livermore, CA)

    1995-01-01

    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.

  8. Evidence for Spring Loaded Inverted Pendulum Running in a Hexapod

    E-Print Network [OSTI]

    Saranlý, Uluç

    Evidence for Spring Loaded Inverted Pendulum Running in a Hexapod Robot Richard Altendorfer, Uluc recently designed compliant leg hexapod robot, RHex. Experimentally measured RHex center of mass for hierarchical control of hexapod robots. 1. Introduction We have recently reported on a prototype robot

  9. U. L'Aquila INVERTING GOME FORMALDEHYDE COLUMN

    E-Print Network [OSTI]

    Curci, Gabriele

    U. L'Aquila CETEMPS INVERTING GOME FORMALDEHYDE COLUMN FOR BIOGENIC EMISSIONS OVER EUROPE Gabriele formaldehyde (HCHO) column data retrieved from GOME over the European continent. Formaldehyde is an important with model simulations focusing on the European continent. Our results suggest that the formaldehyde column

  10. 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. This inevitable decrease, which is caused by internal losses, reduces the utilization factor of the fuel cells at low loads. Additionally, the converters fed by these fuel cells have to be derated to accommodate

  11. THE FOURIERSERIES METHOD FOR INVERTING TRANSFORMS OF PROBABILITY DISTRIBUTIONS

    E-Print Network [OSTI]

    Whitt, Ward

    Ward Whitt 900 Hammond Road AT&T Bell Laboratories Ridgewood, NJ 07450­2908 Room 2C­178 Murray Hill, NJ; THE FOURIER­SERIES METHOD FOR INVERTING TRANSFORMS OF PROBABILITY DISTRIBUTIONS by Joseph Abate Ward Whitt 900 Hammond Road AT&T Bell Laboratories Ridgewood, NJ 07450­2908 Room 2C­178 Murray Hill, NJ 07974

  12. Electrohydraulic Forming of Near-Net Shape Automotive Panels

    SciTech Connect (OSTI)

    Golovaschenko, Sergey F.

    2013-09-26

    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.

  13. US Council for Automotive Research USCAR | 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| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York: EnergyU.S. EPA Regionfor AfricaCouncil for Automotive

  14. Analysis of the potential for new automotive uses of magnesium

    SciTech Connect (OSTI)

    Stodolsky, F.; Gaines, L.; Cuenca, R.; Wu, S.

    1994-12-31

    This paper describes the scope of a new project, just initiated, for the Lightweight Materials Program within the Office of Transportation Materials. The Center for Transportation Research and the Energy Technology Division at Argonne National Laboratory will assess the feasibility and technical potential of using magnesium and its alloys in place of steel or aluminum for automotive structural and sheet applications in order to enable more energy-efficient, lightweight passenger vehicles. The analysis will provide an information base to help guide magnesium research and development in the most promising directions.

  15. 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 Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin FilmUnitedVairexVertVillageVitex SystemsE.T. Automotive Systems

  16. Society of Automotive Engineers World Congress | Department of Energy

    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 QA:QA J-E-1 SECTION J APPENDIX E LIST OF APPLICABLE DIRECTIVES PursuantEnergy Small| AugustSociety of Automotive

  17. Aalborg Universitet Electric vehicle battery charging algorithm using PMSM windings and an inverter as an

    E-Print Network [OSTI]

    Mathe, Laszlo

    windings and an inverter as an active rectifier. In Proceedings of the 2014 IEEE Vehicle Power windings as grid side inductors and controlling the inverter to operate as an active boost rectifierAalborg Universitet Electric vehicle battery charging algorithm using PMSM windings and an inverter

  18. Development of New Three-Level Current-Source Inverter for Grid Connected Photovoltaic System

    E-Print Network [OSTI]

    Fujimoto, Hiroshi

    Development of New Three-Level Current-Source Inverter for Grid Connected Photovoltaic System and inverter, and its feasibility on grid connected photovoltaic system application. Using this new topology photovoltaic system 1. INTRODUCTION Solid state inverters allow to put photovoltaic (PV) systems into the power

  19. Radio-frequency inverters with transmission-line input networks Joshua W. Phinney

    E-Print Network [OSTI]

    Perreault, Dave

    Radio-frequency inverters with transmission-line input networks Joshua W. Phinney Exponent, Inc 02139 Abstract-- A soft-switching inverter topology (the Class ) is presented which draws dc source of the transmission- line dynamics results in natural square-wave operation of the switch, reducing the inverter

  20. Aalborg Universitet Active Damping Techniques for LCL-Filtered Inverters-Based Microgrids

    E-Print Network [OSTI]

    Schwefel, Hans-Peter

    Aalborg Universitet Active Damping Techniques for LCL-Filtered Inverters-Based Microgrids Lorzadeh., & Guerrero, J. M. (2015). Active Damping Techniques for LCL-Filtered Inverters-Based Microgrids.aau.dk on: november 29, 2015 #12;Active Damping Techniques for LCL-Filtered Inverters-Based Microgrids Iman

  1. I-A Modulated Digitally Controlled Non-Inverting Buck-Boost Converter for

    E-Print Network [OSTI]

    I-A Modulated Digitally Controlled Non-Inverting Buck-Boost Converter for WCDMA RF Power Amplifiers.edu Abstract- This paper focuses on the non-inverting buck- boost converter supplying an adjustable DC voltage the WCDMA RFPA settling time requirements. 1. INTRODUCTION Non-inverting buck-boost DC-DC power converter

  2. Growth of vertically aligned ZnO nanowalls for inverted polymer solar cells

    E-Print Network [OSTI]

    Cao, Guozhong

    vertically aligned 1D metal oxide could improve the performance of the inverted polymer solar cellsGrowth of vertically aligned ZnO nanowalls for inverted polymer solar cells Zhiqiang Liang a May 2013 Keywords: Inverted polymer solar cells Zinc oxide Nanowalls Aqueous solution growth a b s t r

  3. 11-level Cascaded H-bridge Grid-tied Inverter Interface with Solar Panels

    E-Print Network [OSTI]

    Tolbert, Leon M.

    11-level Cascaded H-bridge Grid-tied Inverter Interface with Solar Panels Faete Filho, Yue Cao multilevel DC-AC grid-tied inverter. Each inverter bridge is connected to a 200 W solar panel. OPAL-RT lab match. A novel SPWM scheme is proposed in this paper to be used with the solar panels that can account

  4. Advanced Inverter Functions to Support High Levels of Distributed Solar: Policy and Regulatory Considerations (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2014-11-01

    This paper explains how advanced inverter functions (sometimes called 'smart inverters') contribute to the integration of high levels of solar PV generation onto the electrical grid and covers the contributions of advanced functions to maintaining grid stability. Policy and regulatory considerations associated with the deployment of advanced inverter functions are also introduced.

  5. Performance Impact of Solar Gain on Photovoltaic Inverters and Utility-Scale Energy Generation Systems

    E-Print Network [OSTI]

    Performance Impact of Solar Gain on Photovoltaic Inverters and Utility-Scale Energy Generation of solar gain contributions. A novel solar gain utility-scale inverter model has been developed to characterize inverter efficiency with respect to solar resource, general ambient conditions and thermal system

  6. PV INVERTER PERFORMANCE AND RELIABILITY: WHAT IS THE ROLE OF THE IGBT?

    E-Print Network [OSTI]

    PV INVERTER PERFORMANCE AND RELIABILITY: WHAT IS THE ROLE OF THE IGBT? Robert Kaplar 1 , Reinhard the role of component failures in PV performance and reliability. Although there is no consensus these electronic components and to determine the underlying causes of inverter failures. The typical PV inverter

  7. Vehicle Technologies Office Merit Review 2015: 88 Kilowatt 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 DeliciousMathematics And Statistics » USAJobs Search USAJobsAdvanced Engine Combustion SimulationDepartment ofInverter

  8. Electrical power inverter having a phase modulated, twin-inverter, high frequency link and an energy storage module

    DOE Patents [OSTI]

    Pitel, I.J.

    1987-02-03

    The present invention provides an electrical power inverter method and apparatus, which includes a high frequency link, for converting DC power into AC power. Generally stated, the apparatus includes a first high frequency module which produces an AC voltage at a first output frequency, and a second high frequency inverter module which produces an AC voltage at a second output frequency that is substantially the same as the first output frequency. The second AC voltage is out of phase with the first AC voltage by a selected angular phase displacement. A mixer mixes the first and second output voltages to produce a high frequency carrier which has a selected base frequency impressed on the sidebands thereof. A rectifier rectifies the carrier, and a filter filters the rectified carrier. An output inverter inverts the filtered carrier to produce an AC line voltage at the selected base frequency. A phase modulator adjusts the relative angular phase displacement between the outputs of the first and second high frequency modules to control the base frequency and magnitude of the AC line voltage. 19 figs.

  9. Electrical power inverter having a phase modulated, twin-inverter, high frequency link and an energy storage module

    DOE Patents [OSTI]

    Pitel, Ira J. (Whippany, NJ)

    1987-02-03

    The present invention provides an electrical power inverter method and apparatus, which includes a high frequency link, for converting DC power into AC power. Generally stated, the apparatus includes a first high frequency module which produces an AC voltage at a first output frequency, and a second high frequency inverter module which produces an AC voltage at a second output frequency that is substantially the same as the first output frequency. The second AC voltage is out of phase with the first AC voltage by a selected angular phase displacement. A mixer mixes the first and second output voltages to produce a high frequency carrier which has a selected base frequency impressed on the sidebands thereof. A rectifier rectifies the carrier, and a filter filters the rectified carrier. An output inverter inverts the filtered carrier to produce an AC line voltage at the selected base frequency. A phase modulator adjusts the relative angular phase displacement between the outputs of the first and second high frequency modules to control the base frequency and magnitude of the AC line voltage.

  10. Future Automotive Aftertreatment Solutions: The 150°C Challenge Workshop Report

    SciTech Connect (OSTI)

    Zammit, Michael; DiMaggio, Craig L.; Kim, Chang H.; Lambert, Christine; Muntean, George G.; Peden, Charles HF; Parks, James E.; Howden, Ken

    2013-10-15

    With future fuel economy standards enacted, the U.S. automotive manufacturers (OEMs) are committed to pursuing a variety of high risk/highly efficient stoichiometric and lean combustion strategies to achieve superior performance. In recognition of this need, the U.S. Department of Energy (DOE) has partnered with domestic automotive manufacturers through U.S. DRIVE to develop these advanced technologies. However, before these advancements can be introduced into the U.S. market, they must also be able to meet increasingly stringent emissions requirements. A significant roadblock to this implementation is the inability of current catalyst and aftertreatment technologies to provide the required activity at the much lower exhaust temperatures that will accompany highly efficient combustion processes and powertrain strategies. Therefore, the goal of this workshop and report is to create a U.S. DRIVE emission control roadmap that will identify new materials and aftertreatment approaches that offer the potential for 90% conversion of emissions at low temperature (150°C) and are consistent with highly efficient combustion technologies currently under investigation within U.S. DRIVE Advanced Combustion and Emission Control (ACEC) programs.

  11. Direct Injection Compression Ignition Diesel Automotive Technology Education GATE Program

    SciTech Connect (OSTI)

    Anderson, Carl L

    2006-09-25

    The underlying goal of this prqject was to provide multi-disciplinary engineering training for graduate students in the area of internal combustion engines, specifically in direct injection compression ignition engines. The program was designed to educate highly qualified engineers and scientists that will seek to overcome teclmological barriers preventing the development and production of cost-effective high-efficiency vehicles for the U.S. market. Fu1iher, these highly qualified engineers and scientists will foster an educational process to train a future workforce of automotive engineering professionals who are knowledgeable about and have experience in developing and commercializing critical advanced automotive teclmologies. Eight objectives were defmed to accomplish this goal: 1. Develop an interdisciplinary internal co1nbustion engine curriculum emphasizing direct injected combustion ignited diesel engines. 2. Encourage and promote interdisciplinary interaction of the faculty. 3. Offer a Ph.D. degree in internal combustion engines based upon an interdisciplinary cuniculum. 4. Promote strong interaction with indusuy, develop a sense of responsibility with industry and pursue a self sustaining program. 5. Establish collaborative arrangements and network universities active in internal combustion engine study. 6. Further Enhance a First Class educational facility. 7. Establish 'off-campus' M.S. and Ph.D. engine programs of study at various indusuial sites. 8. Extend and Enhance the Graduate Experience.

  12. GATE Center of Excellence at UAB in Lightweight Materials for Automotive Applications

    SciTech Connect (OSTI)

    2011-07-31

    This report summarizes the accomplishments of the UAB GATE Center of Excellence in Lightweight Materials for Automotive Applications. The first Phase of the UAB DOE GATE center spanned the period 2005-2011. The UAB GATE goals coordinated with the overall goals of DOE's FreedomCAR and Vehicles Technologies initiative and DOE GATE program. The FCVT goals are: (1) 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; (2) To provide a new generation of engineers and scientists with knowledge and skills in advanced automotive technologies. The UAB GATE focused on both the FCVT and GATE goals in the following manner: (1) Train and produce graduates in lightweight automotive materials technologies; (2) Structure the engineering curricula to produce specialists in the automotive area; (3) Leverage automotive related industry in the State of Alabama; (4) Expose minority students to advanced technologies early in their career; (5) Develop innovative virtual classroom capabilities tied to real manufacturing operations; and (6) Integrate synergistic, multi-departmental activities to produce new product and manufacturing technologies for more damage tolerant, cost-effective, and lighter automotive structures.

  13. PWM Inverter control and the application thereof within electric vehicles

    DOE Patents [OSTI]

    Geppert, Steven (Bloomfield Hills, MI)

    1982-01-01

    An inverter (34) which provides power to an A.C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A.C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A.C. machine is optimized. The control circuit includes a micro-computer and memory element which receive various parametric inputs and calculate optimized machine control data signals therefrom. The control data is asynchronously loaded into the inverter through an intermediate buffer (38). In its preferred embodiment, the present invention is incorporated within an electric vehicle (10) employing a 144 VDC battery pack (32) and a three-phase induction motor (18).

  14. Inverter-based GTA welding machines improve fabrication

    SciTech Connect (OSTI)

    Sammons, M.

    2000-05-01

    While known as precision process, many fabricators using the gas tungsten arc welding (GTAW) process fight several common problems that hinder quality, slow production, frustrate the operator and otherwise prevent the process from achieving its full potential. These include a limited ability to tailor the weld bead profile, poor control of the arc direction and arc wandering, poor arc starting, unstable or inconsistent arcs in the AC mode, high-frequency interference with electronics and tungsten contamination. Fortunately, new GTA welding technology--made possible by advances with inverter-based power sources and micro-processor controls--can eliminate common productivity gremlins. Further, new AC/DC inverter-based GTA power sources provide advanced arc shaping capabilities. As a result, many fabricators adopting this new technology have experienced phenomenal production increases, taken on new types of projects and reduced costs. Most importantly, the operators enjoy welding more.

  15. The inverter is a major component of photovoltaic (PV) systems either autonomous or grid connected. It affects the

    E-Print Network [OSTI]

    Oregon, University of

    ABSTRACT The inverter is a major component of photovoltaic (PV) systems either autonomous or grid. INTRODUCTION For any grid tied photovoltaic (PV) system, the inverter is the essential piece of equipment. The inverter affects the overall performance of the photovoltaic (PV) systems and problems concerning inverters

  16. Inverter Using Current Source Topology | 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 RankADVANCED MANUFACTURING OFFICE INDUSTRIALU.S. Department of EnergyPresentationOverview ofInverter

  17. Review and evaluation of automotive fuel conservation technologies. Final report

    SciTech Connect (OSTI)

    Siegel, H.M.; Schwarz, R.; Andon, J.; Kolars, G.; Gerstenberger, T.

    1981-12-01

    To support the Office of Research and Development of the National Highway Traffic Safety Administration with focused studies in areas affecting automotive fuel economy and related safety issues, a series of in-depth studies were carried out: Fuel Consumption Estimates of Stratified Charge Rotary Engines Installed in Five Vehicles; Oldsmobile Omega X Body Baseline Weight Data; GM X Body Material Substitution Weight Reduction/Cost Effectiveness Study; Calspan RSV Restraint System Cost Study; FMVSS No. 208 Extension to Light Trucks, Vans, and MPV's - Cost Lead Time Study; Multipiece Rims for Trucks, Buses, and Trailers; Identifying Design Changes, Cost Impacts and Manufacturing Lead Times to Upgrade FMVSS 114 for Passenger Cars, Trucks, and MPV's; Ford Escort GL Baseline Weight Data.

  18. Design and Evaluation of a 42 V Automotive Alternator with Integrated Switched-Mode Rectifier

    E-Print Network [OSTI]

    Perreault, Dave

    and permanent magnet alternators [10-19, 24-26]. This paper carries this strategy forward, and presents is an emerging need for automotive generators that can provide higher output power and power density, improved

  19. Technical Assessment of Organic Liquid Carrier Hydrogen Storage Systems for Automotive Applications

    Fuel Cell Technologies Publication and Product Library (EERE)

    In 2007-2009, the DOE Hydrogen Program conducted a technical assessment of organic liquid carrier based hydrogen storage systems for automotive applications, consistent with the Program’s Multiyear Re

  20. Technical Assessment of Compressed Hydrogen Storage Tank Systems for Automotive Applications

    Fuel Cell Technologies Publication and Product Library (EERE)

    This technical report describes DOE's assessment of the performance and cost of compressed hydrogen storage tank systems for automotive applications. The on-board performance (by Argonne National Lab)

  1. A design strategy applied to sulfur resistant lean NOx̳ automotive catalysts

    E-Print Network [OSTI]

    Tang, Hairong

    2005-01-01

    Catalyst poisoning due to sulfur compounds derived from fuel sulfur presents a major challenge, intractable thus far, to development of many advanced technologies for automotive catalysts such as the lean NOx, trap. Under ...

  2. Comparative analysis of automotive powertrain choices for the near to mid-term future

    E-Print Network [OSTI]

    Kasseris, Emmanuel P

    2006-01-01

    This thesis attempts a technological assessment of automotive powertrain technologies for the near to mid term future. The powertrain types to be assessed include naturally aspirated gasoline engines, turbocharged gasoline ...

  3. The impact of manufacturing offshore on technology development paths in the automotive and optoelectronics industries

    E-Print Network [OSTI]

    Fuchs, Erica R. H. (Erica Renee H.), 1977-

    2006-01-01

    This dissertation presents a two-case study of the impact of manufacturing offshore on the technology trajectory of the firm and the industry. It looks in particular at the automotive and optoelectronics industries. The ...

  4. Electrostatic coalescence of used automotive crankcase oil as an alternative to other separation processes 

    E-Print Network [OSTI]

    Dixon, John Leslie

    1998-01-01

    This thesis presents an initial investigation of using electrostatic coalescence as an alternative to conventional separation processes to purify used automotive crankcase oil. Specific emphasis of this study was the feasibility of this approach...

  5. Prediction and measurement of the rotordynamic response of an automotive turbocharger with floating ring bearings 

    E-Print Network [OSTI]

    Kerth, Jason Michael

    2003-01-01

    The present investigation advances a rotordynamic analysis of an automotive turbocharger with floating ring bearings. Each fluid film of the floating ring bearing is analyzed using a finite element model. The model includes the effects...

  6. Autopia's End: The Decline and Fall of Detroit's Automotive Manufacturing Landscape

    E-Print Network [OSTI]

    Ryan, Brent D.

    Since the 1980s, Detroit’s once- monumental building stock of historic automotive manufacturing facilities has mostly disappeared. Demolition, redevelopment, and abandonment have left little to mark the city’s twentieth-century ...

  7. Status and Outlook for the U.S. Non-Automotive Fuel Cell Industry...

    Office of Environmental Management (EM)

    Status and Outlook for the U.S. Non-Automotive Fuel Cell Industry: Impacts of Government Policies and Assessment of Future Opportunities Status and Outlook for the U.S....

  8. Adaptive control of time delay systems and applications to automotive control problems

    E-Print Network [OSTI]

    Yildiz, Yildiray

    2009-01-01

    This thesis is about the adaptive control of time delay systems with applications to automotive control problems. The stabilization of systems involving time delays is a difficult problem since the existence of a delay may ...

  9. EA-1690: A123 Systems, Inc., Automotive-Class Lithium-Ion Battery...

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

    a Loan and Grant to A123 Systems, Inc., for Vertically Integrated Mass Production of Automotive-Class Lithium-Ion Batteries April 20, 2010 EA-1690: Finding of No Significant Impact...

  10. Management and Labor Relations Techniques of Japanese-Owned Automotive Assembly Plants in the United States

    E-Print Network [OSTI]

    Pitney, Paul

    2005-12-16

    This field project involves a study of the Japanese-owned automotive assembly plants, or “transplants,” in the United States and the management and labor-relations techniques that have made them successful. The management and labor...

  11. Computer-aided optimization of DC/DC converters for automotive applications

    E-Print Network [OSTI]

    Neugebauer, Timothy C.

    This paper investigates computer-aided optimization of DC/DC converters, with a focus on converters for dual-voltage automotive electrical systems. A new CAD optimization approach based on Monte Carlo search methods is ...

  12. An automotive engine model for air-fuel ratio control using cylinder pressure information 

    E-Print Network [OSTI]

    Nana, Emmanuel Tomdio

    1997-01-01

    Increasingly strict emission standards require very accurate and fast air-fuel ratio (AFR) control in combustion engines. This thesis addresses the design methodology currently used for synthesizing a control system for an automotive internal...

  13. NSF/DOE Thermoelectrics Partnership: Thermoelectrics for Automotive Waste Heat Recovery

    Broader source: Energy.gov [DOE]

    Development for commercialization of automotive thermoelectric generators from high-ZT TE materials with using low-cost, widely available materials, system design and modeling to maximize temperature differential across TE modules and maximize power output

  14. AutoMoDe - Model-Based Development of Automotive Software

    E-Print Network [OSTI]

    Ziegenbein, Dirk; Freund, Ulrich; Bauer, Andreas; Romberg, Jan; Schatz, Bernhard

    2011-01-01

    This paper describes first results from the AutoMoDe (Automotive Model-Based Development) project. The overall goal of the project is to develop an integrated methodology for model-based development of automotive control software, based on problem-specific design notations with an explicit formal foundation. Based on the existing AutoFOCUS framework, a tool prototype is being developed in order to illustrate and validate the key elements of our approach.

  15. Utility-scale grid-tied PV inverter reliability workshop summary report.

    SciTech Connect (OSTI)

    Granata, Jennifer E.; Quintana, Michael A.; Tasca, Coryne Adelle; Atcitty, Stanley

    2011-07-01

    A key to the long-term success of the photovoltaic (PV) industry is confidence in the reliability of PV systems. Inverters are the most commonly noted cause of PV system incidents triggered in the field. While not all of these incidents are reliability-related or even necessarily failures, they still result in a loss of generated power. With support from the U.S. Department of Energy's Solar Energy Technologies Program, Sandia National Laboratories organized a Utility-Scale Grid-Tied Inverter Reliability Workshop in Albuquerque, New Mexico, January 27-28, 2011. The workshop addressed the reliability of large (100-kilowatt+) grid-tied inverters and the implications when such inverters fail, evaluated inverter codes and standards, and provided discussion about opportunities to enhance inverter reliability. This report summarizes discussions and presentations from the workshop and identifies opportunities for future efforts.

  16. Vehicle Technologies Office Merit Review 2015: Advanced Low-Cost SiC and GaN Wide Bandgap Inverters for Under-the-Hood Electric Vehicle Traction Drives

    Broader source: Energy.gov [DOE]

    Presentation given by APEI Inc. at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced low-cost SiC and GaN wide...

  17. Vehicle Technologies Office Merit Review 2014: Advanced Low-Cost SiC and GaN Wide Bandgap Inverters for Under-the-Hood Electric Vehicle Traction Drives

    Broader source: Energy.gov [DOE]

    Presentation given by APEI Inc. at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Advanced low-cost SIC and GaN wide...

  18. Industry Perspectives on Advanced Inverters for U.S. Solar Photovoltai...

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

    PCC point of common coupling PV photovoltaic SEPA Solar Electric Power Association SIWG Smart Inverter Working Group TEP Tucson Electric Power Company UL Underwriters Laboratories...

  19. Inverter Using Current Source Topology | 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 RankADVANCED MANUFACTURING OFFICE INDUSTRIALU.S. Department of EnergyPresentationOverview ofInverter R&D1

  20. Predicting the Occurrence of Cosmetic Defects in Automotive Skin Panels

    SciTech Connect (OSTI)

    Hazra, S.; Williams, D.; Roy, R.; Aylmore, R.; Allen, M.; Hollingdale, D.

    2011-05-04

    The appearance of defects such as 'hollows' and 'shock lines' can affect the perceived quality and attractiveness of automotive skin panels. These defects are the result of the stamping process and appear as small, localized deviations from the intended styling of the panels. Despite their size, they become visually apparent after the application of paint and the perceived quality of a panel may become unacceptable. Considerable time is then dedicated to minimizing their occurrence through tool modifications. This paper will investigate the use of the wavelet transform as a tool to analyze physically measured panels. The transform has two key aspects. The first is its ability to distinguish small scale local defects from large scale styling curvature. The second is its ability to characterize the shape of a defect in terms of its wavelength and a 'correlation value'. The two features of the transform enable it to be used as a tool for locating and predicting the severity of defects. The paper will describe the transform and illustrate its application on test cases.

  1. 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.

    combustion engine, electric motor, and energy storage device (for example, batteries and ultracapacitors the size of the heat sink by running the inverter at a higher temperature (>150°C), possibly using silicon

  2. Fault Diagnosis System for a Multilevel Inverter Using a Principal Component Neural Network Surin Khomfoi

    E-Print Network [OSTI]

    Tolbert, Leon M.

    applications such as industrial manufacturing are dependent upon induction motors and their inverter systems. INTRODUCTION In recent years, industry has begun to demand higher power ratings, and MLID systems have become enables the use of renewable energy sources. Two topologies of multilevel inverters for electric drive

  3. A Single-Phase Photovoltaic Inverter Topology with a Series-Connected Power Buffer

    E-Print Network [OSTI]

    Perreault, Dave

    1 A Single-Phase Photovoltaic Inverter Topology with a Series-Connected Power Buffer Brandon J developement for single-phase grid-tied photovoltaic applications. The capacitive energy storage implementation is analyzed and experimentally demonstrated. I. INTRODUCTION Grid-tied inverters for photovoltaic systems

  4. A Single-Phase Photovoltaic Inverter Topology with a Series-Connected Energy Buffer

    E-Print Network [OSTI]

    Perreault, Dave

    1 A Single-Phase Photovoltaic Inverter Topology with a Series-Connected Energy Buffer Brandon J (MICs) have been under rapid development for single-phase grid-tied photovoltaic applications Grid-tied inverters for photovoltaic systems represent a rapidly developing area. Module

  5. IEEE TRANSACTIONS ON POWER ELECTRONICS 1 A Hybrid Power Control Concept for PV Inverters with Reduced

    E-Print Network [OSTI]

    Kerekes, Tamas

    IEEE TRANSACTIONS ON POWER ELECTRONICS 1 Letters A Hybrid Power Control Concept for PV Inverters- cept for grid-connected Photovoltaic (PV) inverters. The control strategy is based on either a Maximum on the instantaneous available power from the PV panels. The essence of the proposed concept lies in the selection

  6. A Novel Low Cost Solar Central Inverters Topology With 99.2 % Efficiency Heiko Preckwinkel and

    E-Print Network [OSTI]

    Noé, Reinhold

    A Novel Low Cost Solar Central Inverters Topology With 99.2 % Efficiency Heiko Preckwinkel IGBT-based 3-level modules are limited to about 300- 600 A nominal current. A Novel Low Cost Solar)», «Transformer», Abstract For solar central inverters, high efficiency is still a very important issue

  7. Optimum Inverter Sizing in Consideration of Irradiance Pattern and PV Incentives

    E-Print Network [OSTI]

    Lehman, Brad

    Optimum Inverter Sizing in Consideration of Irradiance Pattern and PV Incentives Song Chen* Peng Li is that irradiance levels in real installations only occasionally reach irradiance levels of the STC conditions (1000 some researchers propose that undersized inverters cause considerable energy loss under high irradiance

  8. A LOGICAL INVERTED TAXONOMY OF SORTING ALGORITHMS S.M. Merritt K.K. Lau

    E-Print Network [OSTI]

    Lau, Kung-Kiu

    A LOGICAL INVERTED TAXONOMY OF SORTING ALGORITHMS S.M. Merritt K.K. Lau School of Computer Science taxonomy of sorting algorithms, a high­level, top­down, conceptually simple and symmetric categorization taxonomy of sorting algorithms. This provides a logical basis for the inverted taxonomy and expands

  9. Fabrication of inverted opal ZnO photonic crystals by atomic layer deposition

    E-Print Network [OSTI]

    Yamilov, Alexey

    Fabrication of inverted opal ZnO photonic crystals by atomic layer deposition M. Scharrer, X. Wu, A templates using a low-temperature atomic layer deposition process. The polystyrene is removed by firing into opal or inverted opal backbones.3,5,13,14 Recently, atomic layer deposition ALD has been pro- posed

  10. DSP-BasedReal-TimeHarmonic Eliminationof PWM Inverters J. Sun, S. Beineke, H. Grotstollen

    E-Print Network [OSTI]

    Noé, Reinhold

    -mode DC-to-AC power inverters are used in AC motor drives and uninterruptable AC power supplies (UPS for Power Electronics and Electrical Drives University of Paderborn, FB14 D-33098 Paderborn, Germany to control the inverter power switches in order to shape the output to be as close to a sine wave as possible

  11. A sequential Bayesian approach for inverting elastic seismic data in the frequency-ray parameter domain

    E-Print Network [OSTI]

    Chen, Jinsong

    -stacking) is a discretized Radom transform that converts seismic profiles recorded as a function of time and offsets on the vertical delay time and developed a Gauss-Newton based method to invert seismic data in the frequencyA sequential Bayesian approach for inverting elastic seismic data in the frequency-ray parameter

  12. Towards an understanding of light activation processes in titanium oxide based inverted organic solar cells

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    solar cells S. Chambon, E. Destouesse, B. Pavageau, L. Hirsch, and G. Wantz Citation: J. Appl. Phys. 112. Related Articles Power losses in bilayer inverted small molecule organic solar cells Appl. Phys. Lett. 101, 233903 (2012) Thin-film encapsulation of inverted indium-tin-oxide-free polymer solar cells by atomic

  13. Waveguides in inverted opal photonic Virginie Lousse 1,2 and Shanhui Fan 1

    E-Print Network [OSTI]

    Fan, Shanhui

    Waveguides in inverted opal photonic crystals Virginie Lousse 1,2 and Shanhui Fan 1 1 Ginzton phenomena are investigated in an inverted opal photonic crystal made of interpenetrating air spheres, coated, and simulations," Phys. Rev. E 71, 026,605 (2005). 12. V.N. Astratov, et al, "Optical spectroscopy of opal

  14. Emerging Two-Phase Cooling Technologies for Power Electronic Inverters

    SciTech Connect (OSTI)

    Hsu, J.S.

    2005-08-17

    In order to meet the Department of Energy's (DOE's) FreedomCAR and Vehicle Technologies (FVCT) goals for volume, weight, efficiency, reliability, and cost, the cooling of the power electronic devices, traction motors, and generators is critical. Currently the power electronic devices, traction motors, and generators in a hybrid electric vehicle (HEV) are primarily cooled by water-ethylene glycol (WEG) mixture. The cooling fluid operates as a single-phase coolant as the liquid phase of the WEG does not change to its vapor phase during the cooling process. In these single-phase systems, two cooling loops of WEG produce a low temperature (around 70 C) cooling loop for the power electronics and motor/generator, and higher temperature loop (around 105 C) for the internal combustion engine. There is another coolant option currently available in automobiles. It is possible to use the transmission oil as a coolant. The oil temperature exists at approximately 85 C which can be utilized to cool the power electronic and electrical devices. Because heat flux is proportional to the temperature difference between the device's hot surface and the coolant, a device that can tolerate higher temperatures enables the device to be smaller while dissipating the same amount of heat. Presently, new silicon carbide (SiC) devices and high temperature direct current (dc)-link capacitors, such as Teflon capacitors, are available but at significantly higher costs. Higher junction temperature (175 C) silicon (Si) dies are gradually emerging in the market, which will eventually help to lower hardware costs for cooling. The development of high-temperature devices is not the only way to reduce device size. Two-phase cooling that utilizes the vaporization of the liquid to dissipate heat is expected to be a very effective cooling method. Among two-phase cooling methods, different technologies such as spray, jet impingement, pool boiling and submersion, etc. are being developed. The Oak Ridge National Laboratory (ORNL) is leading the research on a novel floating refrigerant loop that cools high-power electronic devices and the motor/generator with very low cooling energy. The loop can be operated independently or attached to the air conditioning system of the vehicle to share the condenser and other mutually needed components. The ability to achieve low cooling energy in the floating loop is attributable to the liquid refrigerant operating at its hot saturated temperature (around 50 C+). In an air conditioning system, the liquid refrigerant is sub-cooled for producing cool air to the passenger compartment. The ORNL floating loop avoids the sub-cooling of the liquid refrigerant and saves significant cooling energy. It can raise the coefficient of performance (COP) more than 10 fold from that of the existing air-conditioning system, where the COP is the ratio of the cooled power and the input power for dissipating the cooled power. In order to thoroughly investigate emerging two-phase cooling technologies, ORNL subcontracted three university/companies to look into three leading two-phase cooling technologies. ORNL's assessments on these technologies are summarized in Section I. Detailed descriptions of the reports by the three university/companies (subcontractors) are in Section II.

  15. Efficient Real-Time Support for Automotive Applications: A Case Study Gurulingesh R., Neera Sharma, Krithi Ramamritham and Sachitanand Malewar

    E-Print Network [OSTI]

    Ramamritham, Krithi

    Efficient Real-Time Support for Automotive Applications: A Case Study Gurulingesh R., Neera Sharma the performance and safety of the applications. The latter is especially important since intelligent automotive them on a real-world (robotic) platform, (ii) facilitated a real- time approach towards designing ACC

  16. Fault-Tolerance of Embedded Systems with Automotive Applications Ratnesh Kumar, Dept. of Elec. & Comp. Eng., Iowa State Univ. (ISU)

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    Fault-Tolerance of Embedded Systems with Automotive Applications Ratnesh Kumar, Dept. of Elec of operation. New approaches are needed for fault tolerance of safety critical automotive applications. We specs to detect software (component) faults. 2. System (= software + computing-platform + plant) level

  17. The University has a number of dedicated automotive research centres, including the Powertrain and Vehicle Research Centre, the Turbo Centre and LARG (Lean and Agile

    E-Print Network [OSTI]

    Burton, Geoffrey R.

    The University has a number of dedicated automotive research centres, including the Powertrain and Vehicle Research Centre, the Turbo Centre and LARG (Lean and Agile Research Group) Automotive. The research carried out through these centres addresses the broad issues associated with the automotive

  18. CARLOG: A Platform for Flexible and Efficient Automotive Sensing Yurong Jiang, Hang Qiu, Matthew McCartney, William G.J. Halfond, Fan Bai, Donald Grimm,

    E-Print Network [OSTI]

    Xing, Guoliang

    CARLOG: A Platform for Flexible and Efficient Automotive Sensing Yurong Jiang, Hang Qiu, Matthew Mc.bai,donald.grimm}@gm.com Abstract Automotive apps can improve efficiency, safety, comfort, and longevity of vehicular use, Algorithms Keywords Automotive, Datalog, Latency, Predicate Acquisition The first 2 authors, Yurong Jiang

  19. Society of Automotive Engineers (SAE) Technical Paper 2006-01-1041 Paper presented at SAE 2006 World Congress & Exposition, April 5, 2006, Detroit, MI

    E-Print Network [OSTI]

    Gruner, Sol M.

    Society of Automotive Engineers (SAE) Technical Paper 2006-01-1041 Paper presented at SAE 2006 and Fundamental Advances in Thermal Fluid Sciences 2006. Vol. SP-2015. (Society of Automotive Engineers, Troy, MI and reducing emissions play an essential role in the design of the new-generation automotive internal

  20. 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 lamps designated for automotive headlight applications was investigated theoretically, by simulation and experimentally. The study reveals that a based ballast (CS-PPRI) complies with the automotive requirement of very

  1. I N S T I T U T F U R I N F O R M A T I K Automotive Architecture Framework

    E-Print Network [OSTI]

    Broy, Manfred

    T U M I N S T I T U T F ¨U R I N F O R M A T I K Automotive Architecture Framework: Towards Automotive Architecture Framework: Towards a Holistic and Standardised System Architecture Description architecture development for the automotive industry. It outlines best practices and methods and introduces

  2. Position Paper for NSF-NIST-USCAR Workshop on Cyber-Physical Systems Fault Diagnosis and Prognosis in a Network of Embedded Systems in Automotive Vehicles

    E-Print Network [OSTI]

    Rajkumar, Ragunathan "Raj"

    in a Network of Embedded Systems in Automotive Vehicles K. Pattipati1, C. Sankavaram1, B. Wang2, P. Zhang1, Y Identification The relentless competition among automotive companies and increased demands from customers poor vehicle performance increases maintenance costs to customers and warranty costs to automotive

  3. Cavitation as a complementary tool for automotive aerodynamics J.F. Beaudoin, O. Cadot, J.L. Aider, K. Gosse, P. Paranthoen, B. Hamelin,

    E-Print Network [OSTI]

    Wesfreid, José Eduardo

    Cavitation as a complementary tool for automotive aerodynamics J.F. Beaudoin, O. Cadot, J.L. Aider of this pollution is related to the increasing number of road vehicles and their gas emissions. For the automotive with a variable slant angle. As depicted in Fig. 1, it exhibits the main features of automotive aerodynamics

  4. ELECTROSTATIC MODELING OF THE JEFFERSON LABORATORY INVERTED CERAMIC GUN

    SciTech Connect (OSTI)

    P. Evtushenko ,F.E. Hannon, C. Hernandez-Garcia

    2010-05-01

    Jefferson Laboratory (JLab) is currently developing a new 500kV DC electron gun for future use with the FEL. The design consists of two inverted ceramics which support a central cathode electrode. This layout allows for a load-lock system to be located behind the gun chamber. The electrostatic geometry of the gun has been designed to minimize surface electric field gradients and also to provide some transverse focusing to the electron beam during transit between the cathode and anode. This paper discusses the electrode design philosophy and presents the results of electrostatic simulations. The electric field information obtained through modeling was used with particle tracking codes to predict the effects on the electron beam.

  5. HISQ inverter on Intel Xeon Phi and NVIDIA GPUs

    E-Print Network [OSTI]

    O. Kaczmarek; C. Schmidt; P. Steinbrecher; Swagato Mukherjee; M. Wagner

    2014-09-04

    The runtime of a Lattice QCD simulation is dominated by a small kernel, which calculates the product of a vector by a sparse matrix known as the "Dslash" operator. Therefore, this kernel is frequently optimized for various HPC architectures. In this contribution we compare the performance of the Intel Xeon Phi to current Kepler-based NVIDIA Tesla GPUs running a conjugate gradient solver. By exposing more parallelism to the accelerator through inverting multiple vectors at the same time we obtain a performance 250 GFlop/s on both architectures. This more than doubles the performance of the inversions. We give a short overview of both architectures, discuss some details of the implementation and the effort required to obtain the achieved performance.

  6. EV drivetrain inverter with V/HZ optimization

    DOE Patents [OSTI]

    Gritter, David J. (Southfield, MI); O'Neil, Walter K. (Birmingham, MI)

    1986-01-01

    An inverter (34) which provides power to an A.C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A.C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the technique of waveform notching in which the shapes of the notches are varied to determine the average energy content of the overall waveform. Through this arrangement, the operational efficiency of the A.C. machine is optimized. The control circuit includes a micro-computer which calculates optimized machine control data signals from various parametric inputs and during steady state load conditions, seeks a best V/HZ ratio to minimize battery current drawn (system losses) from a D.C. power source (32). In the preferred embodiment, the present invention is incorporated within an electric vehicle (10) employing a 144 VDC battery pack and a three-phase induction motor (18).

  7. Analysis of the potential for new automotive uses of wrought magnesium

    SciTech Connect (OSTI)

    Gaines, L.; Cuenca, R.; Wu, S.; Stodolsky, F.

    1996-02-01

    The Center for Transportation Research at Argonne National Laboratory has performed a study for the Lightweight Materials Program within the US Department of Energy`s Office of Transportation Materials to evaluate the suitability of wrought magnesium and its alloys to replace steel or aluminum for automotive structural and sheet applications. Vehicle weight reduction is one of the major means available for improving automotive fuel efficiency. Although high-strength steels, Al, and polymers are already being used to achieve significant weight reductions, substantial additional weight reductions could be achieved by increased use of Mg (whose density is less than one-fourth that of steel and only two-thirds that of Al). This study shows that Mg sheet could be used in automotive body nonstructural and semistructural applications, whereas extrusions could be used in such structural applications as spaceframes. The primary barrier to such uses of wrought Mg is high cost.

  8. Upgrading the Center for Lightweighting Automotive Materials and Processing - a GATE Center of Excellence at the University of Michigan-Dearborn

    SciTech Connect (OSTI)

    Mallick, P. K.

    2012-08-30

    The Center for Lightweighting Materials and Processing (CLAMP) was established in September 1998 with a grant from the Department of Energy’s Graduate Automotive Technology Education (GATE) program. The center received the second round of GATE grant in 2005 under the title “Upgrading the Center for Lightweighting Automotive Materials and Processing”. Using the two grants, the Center has successfully created 10 graduate level courses on lightweight automotive materials, integrated them into master’s and PhD programs in Automotive Systems Engineering, and offered them regularly to the graduate students in the program. In addition, the Center has created a web-based lightweight automotive materials database, conducted research on lightweight automotive materials and organized seminars/symposia on lightweight automotive materials for both academia and industry. The faculty involved with the Center has conducted research on a variety of topics related to design, testing, characterization and processing of lightweight materials for automotive applications and have received numerous research grants from automotive companies and government agencies to support their research. The materials considered included advanced steels, light alloys (aluminum, magnesium and titanium) and fiber reinforced polymer composites. In some of these research projects, CLAMP faculty have collaborated with industry partners and students have used the research facilities at industry locations. The specific objectives of the project during the current funding period (2005 – 2012) were as follows: (1) develop new graduate courses and incorporate them in the automotive systems engineering curriculum (2) improve and update two existing courses on automotive materials and processing (3) upgrade the laboratory facilities used by graduate students to conduct research (4) expand the Lightweight Automotive Materials Database to include additional materials, design case studies and make it more accessible to outside users (5) provide support to graduate students for conducting research on lightweight automotive materials and structures (6) provide industry/university interaction through a graduate certificate program on automotive materials and technology idea exchange through focused seminars and symposia on automotive materials.

  9. A SiC MOSFET Based Inverter for Wireless Power Transfer Applications

    SciTech Connect (OSTI)

    Onar, Omer C [ORNL] [ORNL; Chinthavali, Madhu Sudhan [ORNL] [ORNL; Campbell, Steven L [ORNL] [ORNL; Ning, Puqi [Chinese Academy of Sciences (CAS)] [Chinese Academy of Sciences (CAS); White, Cliff P [ORNL] [ORNL; Miller (JNJ), John M. [JNJ-Miller PLC] [JNJ-Miller PLC

    2014-01-01

    In a wireless power transfer (WPT) system, efficiency of the power conversion stages is crucial so that the WPT technology can compete with the conventional conductive charging systems. Since there are 5 or 6 power conversion stages, each stage needs to be as efficient as possible. SiC inverters are crucial in this case; they can handle high frequency operation and they can operate at relatively higher temperatures resulting in reduces cost and size for the cooling components. This study presents the detailed power module design, development, and fabrication of a SiC inverter. The proposed inverter has been tested at three center frequencies that are considered for the WPT standardization. Performance of the inverter at the same target power transfer level is analyzed along with the other system components. In addition, another SiC inverter has been built in authors laboratory by using the ORNL designed and developed SiC modules. It is shown that the inverter with ORNL packaged SiC modules performs simular to that of the inverter having commercially available SiC modules.

  10. Understanding and managing the effects of battery charger and inverter aging

    SciTech Connect (OSTI)

    Gunther, W. ); Aggarwal, S. )

    1992-01-01

    An aging assessment of battery chargers and inverters was conducted under the auspices of the NRC's Nuclear Plant Aging Research (NPAR) Program. The intentions of this program are to resolve issues related to the aging and service wear of equipment and systems at operating reactor facilities and to assess their impact on safety. Inverters and battery chargers are used in nuclear power plants to perform significant functions related to plant safety and availability. The specific impact of a battery charger or inverter failure varies with plant configuration. Operating experience data have demonstrated that reactor trips, safety injection system actuations, and inoperable emergency core cooling systems have resulted from inverter failures; and dc bus degradation leading to diesel generator inoperability or loss of control room annunication and indication have resulted from battery and battery charger failures. For the battery charger and inverter, the aging and service wear of subcomponents have contributed significantly to equipment failures. This paper summarizes the data and then describes methods that can be used to detect battery charger and inverter degradation prior to failure, as well as methods to minimize the failure effects. In both cases, the managing of battery charger and inverter aging is emphasized. 5 refs.

  11. Understanding and managing the effects of battery charger and inverter aging

    SciTech Connect (OSTI)

    Gunther, W.; Aggarwal, S.

    1992-06-01

    An aging assessment of battery chargers and inverters was conducted under the auspices of the NRC`s Nuclear Plant Aging Research (NPAR) Program. The intentions of this program are to resolve issues related to the aging and service wear of equipment and systems at operating reactor facilities and to assess their impact on safety. Inverters and battery chargers are used in nuclear power plants to perform significant functions related to plant safety and availability. The specific impact of a battery charger or inverter failure varies with plant configuration. Operating experience data have demonstrated that reactor trips, safety injection system actuations, and inoperable emergency core cooling systems have resulted from inverter failures; and dc bus degradation leading to diesel generator inoperability or loss of control room annunication and indication have resulted from battery and battery charger failures. For the battery charger and inverter, the aging and service wear of subcomponents have contributed significantly to equipment failures. This paper summarizes the data and then describes methods that can be used to detect battery charger and inverter degradation prior to failure, as well as methods to minimize the failure effects. In both cases, the managing of battery charger and inverter aging is emphasized. 5 refs.

  12. Update and Expansion of the Center of Automotive Technology Excellence Under the Graduate Automotive Technology Education (GATE) Program at the University of Tennessee, Knoxville

    SciTech Connect (OSTI)

    Irick, David

    2012-08-30

    The Graduate Automotive Technology Education (GATE) Center at the University of Tennessee, Knoxville has completed its seventh year of operation under this agreement, its thirteenth year in total. During this period the Center has involved eleven GATE Fellows and three GATE Research Assistants in preparing them to contribute to advanced automotive technologies in the center’s focus area: Advanced Hybrid Propulsion and Control Systems. 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 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 $2,000,000.

  13. A Preliminary Cost Study of the Dual Mode Inverter Controller

    SciTech Connect (OSTI)

    McKeever, J.W.

    2005-01-28

    In 1998, the Power Electronics and Electric Machinery Research Center (PEEMRC) at the Oak Ridge National Laboratory (ORNL) started a program to investigate alternate field weakening schemes for permanent magnet (PM) motors. The adjective ''alternate'' was used because at that time, outside research emphasis was on motors with interior-mounted PMs (IPMs). The PEEMRC emphasis was placed on motors with surface-mounted PMs (SPMs) because of the relative ease of manufacturing SPM motors compared with the IPM motors. Today the PEEMRC is continuing research on SPMs while examining the IPMs that have been developed by industry. Out of this task--the goal of which was to find ways to drive PM motors that inherently have low inductance at high speeds where their back-emf exceeds the supply voltage--ORNL developed and demonstrated the dual mode inverter control (DMIC) [1,2] method of field weakening for SPM motors. The predecessor of DMIC is conventional phase advance (CPA), which was developed by UQM Technologies, Inc. [3]. Fig. 1 shows the three sets of anti-parallel thyristors in the dashed box that comprise the DMIC. If one removes the dashed box by shorting each set of anti-parallel thyristors, the configuration becomes a conventional full bridge inverter on the left driving a three phase motor on the right. CPA may be used to drive this configuration ORNL's initial analyses of CPA and DMIC were based on driving motors with trapezoidal back-emfs [4-6], obtained using double layer lapped stator windings with one slot per pole per phase. A PM motor with a sinusoidal back-emf obtained with two poles per slot per phase has been analyzed under DMIC operation as a University of Tennessee-Knoxville (UTK) doctoral dissertation [7]. In the process of this research, ORNL has completed an analysis that explains and quantifies the role of inductance in these methods of control. The Appendix includes information on the equations for the three components of phase inductance, L{sub gap}, L{sub slot}, and L{sub endturns}. PM motors inherently have a lower inductance because of the increase in effective air gap caused by the magnet, which is in the denominator of the equation for L{sub gap}. L{sub gap} accounts for about half of the phase inductance. Because of the low inductance, there is a propensity for currents to exceed the motor's rated value. DMIC solves this problem for low-inductance PM motors and, in addition, provides a number of safety features that protect against uncontrolled generator mode operation [8,9]; however, the DMIC topology adds a pair of anti-parallel thyristors in each of the three phases, thereby introducing additional silicon costs as well as additional voltage drops during operation. It poses the tradeoff question; under what conditions can the beneficial features of DMIC offset its additional silicon cost and voltage drop losses? The purpose of this report is to address the tradeoff question. Sections of the report will: (1) review the role of self-inductance in performance and control of PM motors, (2) discuss the bounding inductances for motors with trapezoidal back-emfs under CPA control, (3) discuss the bounding inductances for trapezoidal back-emfs under DMIC, (4) discuss the bounding inductances for the PM synchronous motor (PMSM), (5) present the analysis showing how DMIC minimizes current in PMSMs, (6) present the results of a cost study conducted for two motors driven using a CPA inverter and for two motors driven using DMIC, (7) discuss estimating life cycle cost benefits, and (8) present conclusions.

  14. Low cost, compact high efficiency, traction motor for electric vehicles/hybrid electric vehicles. Final report for the period September 1998 - December 1999

    SciTech Connect (OSTI)

    Mitchell, Jerry; Kessinger, Roy

    2000-04-28

    This final report details technical accomplishments for Phase I of the ''Low Cost, Compact High Efficiency, Traction Motor for Electric Vehicles/Hybrid Electric Vehicles'' program. The research showed that the segmented-electromagnetic array (SEMA) technology combined with an Integrated Motion Module (IMM) concept is highly suited for electric vehicles. IMMs are essentially mechatronic systems that combine the motor, sensing, power electronics, and control functions for a single axis of motion into a light-weight modular unit. The functional integration of these components makes possible significant reductions in motor/alternator size, weight, and cost, while increasing power density and electromechanical conversion efficiency.

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

    E-Print Network [OSTI]

    Noé, Reinhold

    Control Realization for an Interior Permanent Magnet Synchronous Motor (IPMSM) in Automotive Drive, the Maximal Torque Per Current (MTPC) method provides appropriate results. The requested torque is generated higher drive efficiency. The requested torque is generated with a minimum of total losses, which

  16. Design and Evaluation of a 42 V Automotive Alternator with Integrated Switched-Mode Rectifier

    E-Print Network [OSTI]

    Perreault, Dave

    the transient response of both Lundell and permanent magnet alternator. As shown in [10] and elsewhere for automotive generators that along with experimental results demonstrating the ability to can provide higher a suppression of overvoltage transients. These challenges have diode bridge to rectify the generated ac voltages

  17. References and Notes 1. W. J. Bartz, Ed., Engines and Automotive Lubrication

    E-Print Network [OSTI]

    Shapiro, Nikolai

    References and Notes 1. W. J. Bartz, Ed., Engines and Automotive Lubrication (Marcel Dekker, New York, 1993). 2. I. M. Hutchings, Ed., Friction, Lubrication and Wear of Artificial Joints (Professional of Lubricating Oils (Elsevier, Amsterdam, 2003). 12. This has led to stricter controls on the concen- trations

  18. Recycle Batteries CSM recycles a variety of battery types including automotive, sealed lead acid, nickel

    E-Print Network [OSTI]

    Recycle Batteries CSM recycles a variety of battery types including automotive, sealed lead acid, and alkaline batteries. All batteries need to be sorted by battery type. Each battery type must be accumulated in a clearly labeled receptacle to identify the acceptable battery type. Batteries can be dropped off

  19. Problems in the Welding of Automotive Alloys H. K. D. H. Bhadeshia

    E-Print Network [OSTI]

    Cambridge, University of

    Editorial Problems in the Welding of Automotive Alloys H. K. D. H. Bhadeshia Many thousands incomplete and it is common to ignore the fact that welding is an essential component of auto- mobile service. It is not surprising that the highly successful dual phase steels3 can be welded using resistance

  20. Hierarchical Modelling of Automotive Sensor Front-Ends For Structural Diagnosis of Aging Faults

    E-Print Network [OSTI]

    Wieringa, Roel

    functions previously handled purely mechanical. In addition hybrid and pure electrical cars are emerging are hybrid and electrical cars. The automotive semiconductor elec- tronics market amounted to 19.5 billion for the development of dependable analogue/mixed-signal car front-ends, by interfacing aging models between different