National Library of Energy BETA

Sample records for heavy duty vehicles

  1. Heavy Duty Vehicle Futures Analysis.

    SciTech Connect (OSTI)

    Askin, Amanda Christine; Barter, Garrett; West, Todd H.; Manley, Dawn Kataoka

    2014-05-01

    This report describes work performed for an Early Career Research and Development project. This project developed a heavy-duty vehicle (HDV) sector model to assess the factors influencing alternative fuel and efficiency technology adoption. This model builds on a Sandia light duty vehicle sector model and provides a platform for assessing potential impacts of technological advancements developed at the Combustion Research Facility. Alternative fuel and technology adoption modeling is typically developed around a small set of scenarios. This HDV sector model segments the HDV sector and parameterizes input values, such as fuel prices, efficiencies, and vehicle costs. This parameterization enables sensitivity and trade space analyses to identify the inputs that are most associated with outputs of interest, such as diesel consumption and greenhouse gas emissions. Thus this analysis tool enables identification of the most significant HDV sector drivers that can be used to support energy security and climate change goals.

  2. WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements...

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

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

  3. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

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

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis 2011 DOE Hydrogen and Fuel Cells ...

  4. Heavy Duty Vehicle In-Use Emission Performance | Department of...

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

    Evaluating Exhaust Emission Performance of Urban Buses Using Transient Heavy-Duty Chassis Dynamometer Fuel Efficiency of New European HD Vehicles HEAVY-DUTY TRUCK EMISSIONS AND ...

  5. Heavy-Duty Powertrain and Vehicle Development - A Look Toward...

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

    Heavy-Duty Powertrain and Vehicle Development - A Look Toward 2020 Globalization in emissions regulation will be driving freight efficiency improvements and will require heavy-duty ...

  6. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

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

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis 2012 DOE Hydrogen and Fuel Cells Program ...

  7. Energy 101: Heavy Duty Vehicle Efficiency | Department of Energy

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

    Heavy Duty Vehicle Efficiency Energy 101: Heavy Duty Vehicle Efficiency Addthis Description Although Class 8 Trucks only make up 4% of the vehicles on the road, they use about 20% of the nation's transportation fuel. In this video, learn how new fuel-efficient technologies are making our country's big rigs quieter, less polluting, more energy-efficient, and less expensive to operate over time. Topic Vehicles Text Version Below is the text version for the Energy 101: Heavy Duty Vehicle Efficiency

  8. Lightweight Composite Materials for Heavy Duty Vehicles

    SciTech Connect (OSTI)

    Pruez, Jacky; Shoukry, Samir; Williams, Gergis; Shoukry, Mark

    2013-08-31

    The main objective of this project is to develop, analyze and validate data, methodologies and tools that support widespread applications of automotive lightweighting technologies. Two underlying principles are guiding the research efforts towards this objective: • Seamless integration between the lightweight materials selected for certain vehicle systems, cost-effective methods for their design and manufacturing, and practical means to enhance their durability while reducing their Life-Cycle-Costs (LCC). • Smooth migration of the experience and findings accumulated so far at WVU in the areas of designing with lightweight materials, innovative joining concepts and durability predictions, from applications to the area of weight savings for heavy vehicle systems and hydrogen storage tanks, to lightweighting applications of selected systems or assemblies in light–duty vehicles.

  9. Vehicle Technologies Office: AVTA – Medium and Heavy Duty Vehicle Data and Results

    Broader source: Energy.gov [DOE]

    The Vehicle Technologies Office supports work to collect extensive data on light-duty, medium-duty and heavy-duty vehicles through the Advanced Vehicle Testing Activity  (AVTA). Idaho National...

  10. Medium- and Heavy-Duty Vehicle Field Evaluations; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Kelly, Kenneth; Cosgrove, Jon; Duran, Adam; Konan, Arnaud; Lammert, Mike; Prohaska, Bob

    2015-06-09

    This presentation summarizes medium-duty and heavy-duty vehicle field evaluation test results, aggregated data, and detailed analysis.

  11. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and...

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

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis DOE VTP Annual Merit Review PI: Robb A. Barnitt Organization: NREL May 10, 2011 Project ID: VSS043 This ...

  12. NREL: Transportation Research - Heavy-Duty Vehicle Thermal Management

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

    Heavy-Duty Vehicle Thermal Management Infrared image of a semi cab and two people. NREL testing and modeling assess the energy saving impact of advanced climate control materials and equipment on heavy-duty vehicles. Photo by Dennis Schroeder, NREL Illustration of a truck with labeled energy-saving elements. NREL researchers assess the energy saving potential of films, paints, advanced insulation, micro-environmental design, and idle reduction technologies. Illustration by Ray David, NREL

  13. Impact of Heavy Duty Vehicle Emissions Reductions on Global Climate

    SciTech Connect (OSTI)

    Calvin, Katherine V.; Thomson, Allison M.

    2010-08-01

    The impact of a specified set of emissions reductions from heavy duty vehicles on climate change is calculated using the MAGICC 5.3 climate model. The integrated impact of the following emissions changes are considered: CO2, CH4, N2O, VOC, NOx, and SO2. This brief summarizes the assumptions and methods used for this calculation.

  14. Medium and Heavy Duty Vehicle Field Evaluations (Presentation)

    SciTech Connect (OSTI)

    Walkowicz, K.

    2014-06-01

    This presentation discusses field evaluations of medium- and heavy-duty vehicles performed by NREL. The project provides medium-duty (MD) and heavy-duty (HD) test results, aggregated data, and detailed analysis, including 3rd party unbiased data (data that would not normally be shared by industry in an aggregated and detailed manner). Over 5.6 million miles of advanced technology MD and HD truck data have been collected, documented, and analyzed on over 240 different vehicles since 2002. Data, analysis, and reports are shared within DOE, national laboratory partners, and industry for R&D planning and strategy. The results help guide R&D for new technology development, help define intelligent usage of newly developed technology, and help fleets/users understand all aspects of advanced technology.

  15. Medium and Heavy Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

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

  16. Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

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

  17. Heavy Duty Vehicle Modeling and Simulation

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  18. Vehicle Technologies Office Merit Review 2015: Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling

    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 heavy-duty low...

  19. Vehicle Technologies Office Merit Review 2014: Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling

    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 heavy-duty low...

  20. Energy 101: Heavy Duty Vehicle Efficiency

    SciTech Connect (OSTI)

    2015-05-14

    Although Class 8 Trucks only make up 4% of the vehicles on the road, they use about 20% of the nation's transportation fuel. In this video, learn how new fuel-efficient technologies are making our country's big rigs quieter, less polluting, more energy-efficient, and less expensive to operate over time.

  1. Clean Cities' Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2010-09-01

    Guide describes the alternative fuel and advanced medium- and heavy-duty vehicles available on the market, including buses, vans, refuse haulers, and more.

  2. Heavy-Duty Powertrain and Vehicle Development- A Look Toward 2020

    Broader source: Energy.gov [DOE]

    Globalization in emissions regulation will be driving freight efficiency improvements and will require heavy-duty engine and powertrain advancements, vehicle improvements, and optimized system integration

  3. Advanced Natural Gas Engine Technology for Heavy Duty Vehicles...

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

    of HD vehicle applications. PDF icon deer09kamel.pdf More Documents & Publications Light-Duty Diesel Market Potential in ... Meet Future Exhaust Emission Limits Advances in ...

  4. Emissions from In-Use NG, Propane, and Diesel Fueled Heavy Duty Vehicles |

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

    Department of Energy Emissions tests of in-use heavy-duty vehicles showed that, natural gas- and propane-fueled vehicles have high emissions of NH3 and CO, compared to diesel vehicles, while meeting certification requirements PDF icon deer11_johnson.pdf More Documents & Publications Vehicle Technologies Office Merit Review 2015: Cummins-ORNL\FEERC Emissions CRADA: NOx Control & Measurement Technology for Heavy-Duty Diesel Engines, Self-Diagnosing SmartCatalyst Systems Vehicle

  5. INFOGRAPHIC: How SuperTruck is Making Heavy Duty Vehicles More Efficient |

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

    Department of Energy SuperTruck is Making Heavy Duty Vehicles More Efficient INFOGRAPHIC: How SuperTruck is Making Heavy Duty Vehicles More Efficient March 1, 2016 - 10:45am Addthis Our latest infographic explains how heavy-duty trucks are more getting more sustainable thanks to the Energy Department's SuperTruck initiative. | Infographic by <a href="/node/1332956">Carly Wilkins</a>, Energy Department. Our latest infographic explains how heavy-duty trucks are more

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

    Broader source: Energy.gov [DOE]

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

  7. Heavy Duty Vehicle Modeling & Simulation | Department of Energy

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

    5_rousseau.pdf More Documents & Publications Vehicle Technologies Office: 2009 Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report AVTA: Quantifying the Effects of Idle Stop Systems on Fuel Economy AVTA: Ford Escape PHEV Advanced Research Vehicle 2010 Testing Results

  8. Vehicle Technologies Office Merit Review 2015: Zero-Emission Heavy-Duty Drayage Truck Demonstration

    Broader source: Energy.gov [DOE]

    Presentation given by SCAQMD at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about zero-emission heavy-duty drayage truck...

  9. Vehicle Technologies Office Merit Review 2014: Heavy Duty Roots Expander Heat Energy Recovery (HD-REHER)

    Broader source: Energy.gov [DOE]

    Presentation given by Eaton Corporation at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about heavy duty roots expander...

  10. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...

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

    Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Vehicle Technologies Office Merit Review 2014: Heavy-Duty Low-Temperature and Diesel ...

  11. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...

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

    More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Vehicle Technologies Office Merit Review 2014: Heavy-Duty ...

  12. Energy Department Announces $11 Million to Accelerate Alternative Fuel Use in Medium- and Heavy-Duty Vehicles

    Broader source: Energy.gov [DOE]

    The Energy Department today announced $11 million in available funding to support development and demonstration of innovative alternative technologies for medium- and heavy-duty vehicles, designed...

  13. Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles

    SciTech Connect (OSTI)

    2013-08-01

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

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

    SciTech Connect (OSTI)

    Not Available

    2013-08-01

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

  15. Medium- and Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

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

  16. Medium and Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

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

  17. Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles (Book), Clean Cities, Energy Efficiency & Renewable Energy (EERE)

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

    School Bus * Shuttle Bus * Transit Bus * Refuse Truck * Tractor * Van * Vocational Truck Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles 2 Clean Cities Guide to Alternative Fuel and Advanced Medium- and Heavy-Duty Vehicles 3 Table of Contents About the Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

  18. Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling...

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

    Program Truck Duty Cycle and Performance Data Collection and Analysis Program Vehicle Technologies Office Merit Review 2014: Powertrain Controls Optimization for Heavy Duty ...

  19. Medium and Heavy Duty Vehicle and Engine Testing

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  20. Medium and Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  1. Integrated Virtual Lab in Supporting Heavy Duty Engine and Vehicle...

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

    2015: Class 8 Truck Freight Efficiency Improvement Project Impact of Vehicle Efficiency Improvements on Powertrain Design Roadmap and Technical White Papers for 21st Century Truck ...

  2. WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements...

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

    ... Gross Vehicle Weight Ratings (GVWR) system as Class 1 through 8. The body-on-frame ... A change in material for structurally critical systems such as the chassis must ...

  3. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis

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

    Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis PI: Jeff Gonder (NREL) Team: Laurie Ramroth and Aaron Brooker May 15, 2012 Project ID #: VSS043 This presentation does not contain any proprietary, confidential, or otherwise restricted information. 2 Overview Project Start Date: Oct 2009 Project End Date: Oct 2012 Percent Complete: 70% * Risk aversion * Cost * Computational models, design and simulation methodologies Total Project Funding: $740k DOE: $700k over multiple years

  4. Quantitative Effects of Vehicle Parameters on Fuel Consumption for Heavy-Duty Vehicle

    SciTech Connect (OSTI)

    Wang, Lijuan; Kelly, Kenneth; Walkowicz, Kevin; Duran, Adam

    2015-10-16

    The National Renewable Energy Laboratory's (NREL's) Fleet Test and Evaluations team recently conducted chassis dynamometer tests of a class 8 conventional regional delivery truck over the Heavy Heavy-Duty Diesel Truck (HHDDT), West Virginia University City (WVU City), and Composite International Truck Local and Commuter Cycle (CILCC) drive cycles. A quantitative study was conducted by analyzing the impacts of various factors on fuel consumption (FC) and fuel economy (FE) by modeling and simulating the truck using NREL's Future Automotive Systems Technology Simulator (FASTSim). Factors used in this study included vehicle weight, and the coefficients of rolling resistance and aerodynamic drag. The simulation results from a single parametric study revealed that FC was approximately a linear function of the weight, coefficient of aerodynamic drag, and rolling resistance over various drive cycles. Among these parameters, the truck weight had the largest effect on FC. The study of the impact of two technologies on FE suggested that, depending on the circumstances, it may be more cost effective to reduce one parameter (such as coefficient of aerodynamic drag) to increase fuel economy, or it may be more beneficial to reduce another (such as the coefficient of rolling resistance). It also provided a convenient way to estimate FE by interpolating within the parameter values and extrapolating outside of them. The simulation results indicated that the FC could be reduced from 38.70 L/100 km, 50.72 L/100 km, and 38.42 L/100 km in the baseline truck to 26.78 L/100 km, 43.14 L/100 km and 29.84 L/100 km over the HHDDT, WVU City and CILCC drive cycles, respectively, when the U.S. Department of Energy's three targeted new technologies were applied simultaneously.

  5. Measurement of Real-World Emissions from Heavy-Duty Diesel Vehicles...

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

    Evaluation of NTE Windows and a Work-Based Method to Determine In-Use Emissions of a Heavy-Duty Diesel Engine Reduction of Emissions from a High Speed Ferry Heavy-Duty Truck ...

  6. Natural Gas as a Future Fuel for Heavy-Duty Vehicles

    SciTech Connect (OSTI)

    Wai-Lin Litzke; James Wegrzyn

    2001-05-14

    In addition to their significant environmental impacts, medium-duty and heavy-duty (HD) vehicles are high volume fuel users. Development of such vehicles, which include transit buses, refuse trucks, and HD Class 6-8 trucks, that are fueled with natural gas is strategic to market introduction of natural gas vehicles (NGV). Over the past five years the Department of Energy's (DOE) Office of Heavy Vehicle Technologies (OHVT) has funded technological developments in NGV systems to support the growth of this sector in the highly competitive transportation market. The goals are to minimize emissions associated with NGV use, to improve on the economies of scale, and to continue supporting the testing and safety assessments of all new systems. This paper provides an overview of the status of major projects under a program supported by DOE/OHVT and managed by Brookhaven National Laboratory. The discussion focuses on the program's technical strategy in meeting specific goals proposed by the N GV industry and the government. Relevant projects include the development of low-cost fuel storage, fueling infrastructure, and HD vehicle applications.

  7. Vehicle Technologies Office Issues Notice of Intent for Medium and Heavy-Duty Vehicle Demonstration Funding Opportunity

    Broader source: Energy.gov [DOE]

    The Vehicle Technologies Office has issued a Notice of Intent (No. DE-FOA-0001355) to make interested parties aware of its plan to issue a Funding Opportunity Announcement (FOA) entitled “Medium and Heavy Duty Vehicle Powertrain Electrification and Dual Fuel Fleet Demonstration.” The information contained in the notice is subject to change. As this is only a notice of intent, applications and questions are not currently being accepted for this FOA. It is anticipated that this FOA will be posted to the EERE Exchange website in August 2015.

  8. The GREET Model Expansion for Well-to-Wheels Analysis of Heavy-Duty Vehicles

    SciTech Connect (OSTI)

    Cai, Hao; Burnham, Andrew; Wang, Michael; Hang, Wen; Vyas, Anant

    2015-05-01

    Heavy-duty vehicles (HDVs) account for a significant portion of the U.S. transportation sector’s fuel consumption, greenhouse gas (GHG) emissions, and air pollutant emissions. In our most recent efforts, we expanded the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREETTM) model to include life-cycle analysis of HDVs. In particular, the GREET expansion includes the fuel consumption, GHG emissions, and air pollutant emissions of a variety of conventional (i.e., diesel and/or gasoline) HDV types, including Class 8b combination long-haul freight trucks, Class 8b combination short-haul freight trucks, Class 8b dump trucks, Class 8a refuse trucks, Class 8a transit buses, Class 8a intercity buses, Class 6 school buses, Class 6 single-unit delivery trucks, Class 4 single-unit delivery trucks, and Class 2b heavy-duty pickup trucks and vans. These vehicle types were selected to represent the diversity in the U.S. HDV market, and specific weight classes and body types were chosen on the basis of their fuel consumption using the 2002 Vehicle Inventory and Use Survey (VIUS) database. VIUS was also used to estimate the fuel consumption and payload carried for most of the HDV types. In addition, fuel economy projections from the U.S. Energy Information Administration, transit databases, and the literature were examined. The U.S. Environmental Protection Agency’s latest Motor Vehicle Emission Simulator was employed to generate tailpipe air pollutant emissions of diesel and gasoline HDV types.

  9. HEAVY-DUTY TRUCK EMISSIONS AND FUEL CONSUMPTION SIMULATING REAL...

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

    Evaluating Exhaust Emission Performance of Urban Buses Using Transient Heavy-Duty Chassis Dynamometer Heavy Duty Vehicle In-Use Emission Performance Fuel Efficiency of New European ...

  10. On-Road Development of the C-Gas Plus Engine in Heavy-Duty Vehicles

    SciTech Connect (OSTI)

    Not Available

    2003-06-01

    Fact sheet details on-road development of C-Gas Plus natural gas engine in Viking Freight heavy-duty trucks, including emissions, fuel costs, and petroleum displacement.

  11. Development and Demonstration of Fischer-Tropsch Fueled Heavy-Duty Vehicles

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

    with Control Technologies for Reduced Diesel Exhaust Emissions | Department of Energy 03 DEER Conference Presentation: Ricardo Inc., Chicago Technical Center PDF icon 2003_deer_may.pdf More Documents & Publications Opportunities for the Early Production of Fischer-Tropsch (F-T) Fuels in the U.S. -- An Overview APBF-DEC Heavy Duty NOx Adsorber/DPF Project: Heavy Duty Linehaul Platform Project Update Coal-Derived Liquids to Enable HCCI Technology

  12. Light Duty Vehicle Pathways

    Broader source: Energy.gov [DOE]

    Presented at the U.S. Department of Energy Light Duty Vehicle Workshop in Washington, D.C. on July 26, 2010.

  13. Vehicle Technologies Office Merit Review 2015: Medium and Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

    Presentation given by National Renewable Energy Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about medium...

  14. Vehicle Technologies Office Merit Review 2014: Medium and Heavy-Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

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

  15. Demonstration of Alternative Fuel, Light and Heavy Duty Vehicles in State and Municipal Vehicle Fleets

    SciTech Connect (OSTI)

    Kennedy, John H.; Polubiatko, Peter; Tucchio, Michael A.

    2002-02-06

    This project involved the purchase of two Compressed Natural Gas School Buses and two electric Ford Rangers to demonstrate their viability in a municipal setting. Operational and maintenance data were collected for analysis. In addition, an educational component was undertaken with middle school children. The children observed and calculated how electric vehicles could minimize pollutants through comparison to conventionally powered vehicles.

  16. Emissions from In-Use NG, Propane, and Diesel Fueled Heavy Duty...

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

    In-Use NG, Propane, and Diesel Fueled Heavy Duty Vehicles Emissions from In-Use NG, Propane, and Diesel Fueled Heavy Duty Vehicles Emissions tests of in-use heavy-duty vehicles ...

  17. Evaluation of fuel consumption potential of medium and heavy duty vehicles through modeling and simulation.

    SciTech Connect (OSTI)

    Delorme, A.; Karbowski, D.; Sharer, P.; Energy Systems

    2010-03-31

    The main objective of this report is to provide quantitative data to support the Committee in its task of establishing a report to support rulemaking on medium- and heavy-duty fuel efficiency improvement. In particular, it is of paramount importance for the Committee to base or illustrate their conclusions on established models and actual state-of-the art data. The simulations studies presented in the report have been defined and requested by the members of the National Academy committee to provide quantitative inputs to support their recommendations. As such, various technologies and usage scenarios were considered for several applications. One of the objective is to provide the results along with their associated assumptions (both vehicle and drive cycles), information generally missing from public discussions on literature search. Finally, the advantages and limitations of using simulation will be summarized. The study addresses several of the committee tasks, including: (1) Discussion of the implication of metric selection; (2) Assessing the impact of existing technologies on fuel consumption through energy balance analysis (both steady-state and standard cycles) as well as real world drive cycles; and (3) Impact of future technologies, both individually and collectively.

  18. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion

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

    Modeling | Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon ace001_musculus_2011_o.pdf More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling High Efficiency Fuel Reactivity Controlled Compression Ignition Combustion

  19. Solid Oxide Fuel Cell Development for Auxiliary Power in Heavy Duty Vehicle Applications

    SciTech Connect (OSTI)

    Daniel T. Hennessy

    2010-06-15

    Changing economic and environmental needs of the trucking industry is driving the use of auxiliary power unit (APU) technology for over the road haul trucks. The trucking industry in the United States remains the key to the economy of the nation and one of the major changes affecting the trucking industry is the reduction of engine idling. Delphi Automotive Systems, LLC (Delphi) teamed with heavy-duty truck Original Equipment Manufacturers (OEMs) PACCAR Incorporated (PACCAR), and Volvo Trucks North America (VTNA) to define system level requirements and develop an SOFC based APU. The project defines system level requirements, and subsequently designs and implements an optimized system architecture using an SOFC APU to demonstrate and validate that the APU will meet system level goals. The primary focus is on APUs in the range of 3-5 kW for truck idling reduction. Fuels utilized were derived from low-sulfur diesel fuel. Key areas of study and development included sulfur remediation with reformer operation; stack sensitivity testing; testing of catalyst carbon plugging and combustion start plugging; system pre-combustion; and overall system and electrical integration. This development, once fully implemented and commercialized, has the potential to significantly reduce the fuel idling Class 7/8 trucks consume. In addition, the significant amounts of NOx, CO2 and PM that are produced under these engine idling conditions will be virtually eliminated, inclusive of the noise pollution. The environmental impact will be significant with the added benefit of fuel savings and payback for the vehicle operators / owners.

  20. Development and Demonstration of a Low Cost Hybrid Drive Train for Medium and Heavy Duty Vehicles

    SciTech Connect (OSTI)

    Strangas, Elias; Schock, Harold; Zhu, Guoming; Moran, Kevin; Ruckle, Trevor; Foster, Shanelle; Cintron-Rivera, Jorge; Tariq, Abdul; Nino-Baron, Carlos

    2011-04-30

    The DOE sponsored effort is part of a larger effort to quantify the efficiency of hybrid powertrain systems through testing and modeling. The focus of the DOE sponsored activity was the design, development and testing of hardware to evaluate the efficiency of the electrical motors relevant to medium duty vehicles. Medium duty hybrid powertrain motors and generators were designed, fabricated, setup and tested. The motors were a permanent magnet configuration, constructed at Electric Apparatus Corporation in Howell, Michigan. The purpose of this was to identify the potential gains in terms of fuel cost savings that could be realized by implementation of such a configuration. As the electric motors constructed were prototype designs, the scope of the project did not include calculation of the costs of mass production of the subject electrical motors or generator.

  1. Development of a direct-injected natural gas engine system for heavy-duty vehicles: Final report phase 1

    SciTech Connect (OSTI)

    2000-03-02

    The transportation sector accounts for approximately 65% of US petroleum consumption. Consumption for light-duty vehicles has stabilized in the last 10--15 years; however, consumption in the heavy-duty sector has continued to increase. For various reasons, the US must reduce its dependence on petroleum. One significant way is to substitute alternative fuels (natural gas, propane, alcohols, and others) in place of petroleum fuels in heavy-duty applications. Most alternative fuels have the additional benefit of reduced exhaust emissions relative to petroleum fuels, thus providing a cleaner environment. The best long-term technology for heavy-duty alternative fuel engines is the 4-stroke cycle, direct injected (DI) engine using a single fuel. This DI, single fuel approach maximizes the substitution of alternative fuel for diesel and retains the thermal efficiency and power density of the diesel engine. This report summarizes the results of the first year (Phase 1) of this contract. Phase 1 focused on developing a 4-stroke cycle, DI single fuel, alternative fuel technology that will duplicate or exceed diesel power density and thermal efficiency, while having exhaust emissions equal to or less than the diesel. Although the work is currently on a 3500 Series DING engine, the work is viewed as a basic technology development that can be applied to any engine. Phase 1 concentrated on DING engine component durability, exhaust emissions, and fuel handling system durability. Task 1 focused on identifying primary areas (e.g., ignition assist and gas injector systems) for future durability testing. In Task 2, eight mode-cycle-averaged NO{sub x} emissions were reduced from 11.8 gm/hp-hr (baseline conditions) to 2.5 gm/hp-hr (modified conditions) on a 3501 DING engine. In Task 3, a state-of-the-art fuel handling system was identified.

  2. Vehicle Technologies Office Merit Review 2014: Advanced Heavy...

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

    Advanced Heavy-Duty Engine Systems and Emissions Control Modeling and Analysis Vehicle Technologies Office Merit Review 2014: Advanced Heavy-Duty Engine Systems and Emissions ...

  3. In-Use Performance Results of Medium Duty Electric Vehicles (Presentation)

    SciTech Connect (OSTI)

    Walkowicz, K.

    2012-07-01

    This presentation describes a DOE program to monitor and report on vehicle performance and energy utilization of medium-duty and heavy-duty electric vehicles.

  4. Fuel Effects on Advanced Combustion: Heavy-Duty Optical-Engine...

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

    Advanced Combustion: Heavy-Duty Optical-Engine Research Fuel Effects on Advanced Combustion: Heavy-Duty Optical-Engine Research 2009 DOE Hydrogen Program and Vehicle Technologies ...

  5. The heavy-duty vehicle future in the United States: A parametric analysis of technology and policy tradeoffs

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Askin, Amanda Christine; Barter, Garrett; West, Todd H.; Manley, Dawn Kataoka

    2015-02-14

    Here, we present a parametric analysis of factors that can influence advanced fuel and technology deployments in U.S. Class 7–8 trucks through 2050. The analysis focuses on the competition between traditional diesel trucks, natural gas vehicles (NGVs), and ultra-efficient powertrains. Underlying the study is a vehicle choice and stock model of the U.S. heavy-duty vehicle market. Moreover, the model is segmented by vehicle class, body type, powertrain, fleet size, and operational type. We find that conventional diesel trucks will dominate the market through 2050, but NGVs could have significant market penetration depending on key technological and economic uncertainties. Compressed naturalmore » gas trucks conducting urban trips in fleets that can support private infrastructure are economically viable now and will continue to gain market share. Ultra-efficient diesel trucks, exemplified by the U.S. Department of Energy's SuperTruck program, are the preferred alternative in the long haul segment, but could compete with liquefied natural gas (LNG) trucks if the fuel price differential between LNG and diesel increases. However, the greatest impact in reducing petroleum consumption and pollutant emissions is had by investing in efficiency technologies that benefit all powertrains, especially the conventional diesels that comprise the majority of the stock, instead of incentivizing specific alternatives.« less

  6. The heavy-duty vehicle future in the United States: A parametric analysis of technology and policy tradeoffs

    SciTech Connect (OSTI)

    Askin, Amanda Christine; Barter, Garrett; West, Todd H.; Manley, Dawn Kataoka

    2015-02-14

    Here, we present a parametric analysis of factors that can influence advanced fuel and technology deployments in U.S. Class 7–8 trucks through 2050. The analysis focuses on the competition between traditional diesel trucks, natural gas vehicles (NGVs), and ultra-efficient powertrains. Underlying the study is a vehicle choice and stock model of the U.S. heavy-duty vehicle market. Moreover, the model is segmented by vehicle class, body type, powertrain, fleet size, and operational type. We find that conventional diesel trucks will dominate the market through 2050, but NGVs could have significant market penetration depending on key technological and economic uncertainties. Compressed natural gas trucks conducting urban trips in fleets that can support private infrastructure are economically viable now and will continue to gain market share. Ultra-efficient diesel trucks, exemplified by the U.S. Department of Energy's SuperTruck program, are the preferred alternative in the long haul segment, but could compete with liquefied natural gas (LNG) trucks if the fuel price differential between LNG and diesel increases. However, the greatest impact in reducing petroleum consumption and pollutant emissions is had by investing in efficiency technologies that benefit all powertrains, especially the conventional diesels that comprise the majority of the stock, instead of incentivizing specific alternatives.

  7. The heavy-duty vehicle future in the United States: A parametric analysis of technology and policy tradeoffs

    SciTech Connect (OSTI)

    Askin, Amanda Christine; Barter, Garrett; West, Todd H.; Manley, Dawn Kataoka

    2015-02-14

    Here, we present a parametric analysis of factors that can influence advanced fuel and technology deployments in U.S. Class 78 trucks through 2050. The analysis focuses on the competition between traditional diesel trucks, natural gas vehicles (NGVs), and ultra-efficient powertrains. Underlying the study is a vehicle choice and stock model of the U.S. heavy-duty vehicle market. Moreover, the model is segmented by vehicle class, body type, powertrain, fleet size, and operational type. We find that conventional diesel trucks will dominate the market through 2050, but NGVs could have significant market penetration depending on key technological and economic uncertainties. Compressed natural gas trucks conducting urban trips in fleets that can support private infrastructure are economically viable now and will continue to gain market share. Ultra-efficient diesel trucks, exemplified by the U.S. Department of Energy's SuperTruck program, are the preferred alternative in the long haul segment, but could compete with liquefied natural gas (LNG) trucks if the fuel price differential between LNG and diesel increases. However, the greatest impact in reducing petroleum consumption and pollutant emissions is had by investing in efficiency technologies that benefit all powertrains, especially the conventional diesels that comprise the majority of the stock, instead of incentivizing specific alternatives.

  8. California Policy Stimulates Carbon Negative CNG for Heavy Duty...

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

    Describes system for fueling truck fleet with biomethane generated from anaerobic ... Advanced Natural Gas Engine Technology for Heavy Duty Vehicles Technical Workshop: Annual ...

  9. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  10. Medium- and Heavy-Duty Electric Drive Vehicle Simulation and Analysis

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  11. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...

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

    More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty ...

  12. APBF-DEC Heavy Duty NOx Adsorber/DPF Project: Heavy Duty Linehaul...

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

    Heavy Duty NOx AdsorberDPF Project: Heavy Duty Linehaul Platform Project Update APBF-DEC Heavy Duty NOx AdsorberDPF Project: Heavy Duty Linehaul Platform Project Update 2003 DEER ...

  13. Integrated Virtual Lab in Supporting Heavy Duty Engine and Vehicle Emission Rulemaking

    Broader source: Energy.gov [DOE]

    Presentation discusses a virtual lab which can model sophisticated future vehicle systems using three layers of model fidelity supporting each other.

  14. Vehicle Technologies Office Merit Review 2014: Powertrain Controls Optimization for Heavy Duty Line Haul Trucks

    Broader source: Energy.gov [DOE]

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

  15. Vehicle Technologies Office Merit Review 2015: Powertrain Controls Optimization for Heavy Duty Line Haul Trucks

    Broader source: Energy.gov [DOE]

    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 powertrain...

  16. Vehicle Technologies Office Merit Review 2014: High Strength, Light-Weight Engines for Heavy Duty Trucks

    Broader source: Energy.gov [DOE]

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

  17. Vehicle Technologies Office Merit Review 2014: Zero-Emission Heavy-Duty Drayage Truck Demonstration

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by South Coast Air Quality Management District at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about...

  18. Investigation of the Application of the European PMP Method to Clean Heavy Duty Vehicles

    Broader source: Energy.gov [DOE]

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

  19. Vehicle Technologies Office Merit Review 2014: Advanced Heavy-Duty Engine Systems and Emissions Control Modeling and Analysis

    Broader source: Energy.gov [DOE]

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

  20. Norcal Waste Systems, Inc. Advanced Technology Vehicles in Service, LNG Heavy-Duty Trucks Fact Sheet.

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

    TRUCKS ARE EQUIPPED WITH CUMMINS WESTPORT'S ISXG HEAVY-DUT Y ENGINE. Cummins Westport Inc. is a joint venture company formed by Cummins Inc. and Westport Innovations Inc. to bring natural gas engines to market. Westport Innovations is an alternative fuel engine technology company that developed the High-Pressure Direct Injection (HPDI(tm)) system and other natural gas technologies; Cummins is a veteran diesel engine manufacturer that provides the compression ignition engines with technology for

  1. Light Duty Vehicle CNG Tanks

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

    Duty Vehicle CNG Tanks Dane A. Boysen, PhD Program Director Advanced Research Projects Agency-Energy, US DOE dane.boysen@doe.gov Fiber Reinforced Polymer Composite Manufacturing ...

  2. Diesel-fueled solid oxide fuel cell auxiliary power units for heavy-duty vehicles

    SciTech Connect (OSTI)

    Krause, T.; Kumar, R.; Krumpelt, M.

    2000-05-15

    This paper explores the potential of solid oxide fuel cells (SOFCS) as 3--10 kW auxiliary power units for trucks and military vehicles operating on diesel fuel. It discusses the requirements and specifications for such units, and the advantages, challenges, and development issues for SOFCS used in this application. Based on system design and analysis, such systems should achieve efficiencies approaching 40% (lower heating value), with a relatively simple system configuration. The major components of such a system are the fuel cell stack, a catalytic autothermal reformer, and a spent gas burner/air preheater. Building an SOFC-based auxiliary power unit is not straightforward, however, and the tasks needed to develop a 3--10 kW brassboard demonstration unit are outlined.

  3. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty...

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

    Peer Evaluation PDF icon ace001musculus2011o.pdf More Documents & Publications Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling Heavy-Duty ...

  4. Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty

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

    Diesel Engine Fuel Injectors | Department of Energy 09 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon pm_05_lin.pdf More Documents & Publications Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel Injectors Vehicle Technologies Office Merit Review 2014: Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel

  5. Light-duty vehicle summary

    SciTech Connect (OSTI)

    Williams, L.S. ); Hu, P.S. )

    1990-07-01

    This document brings you up to date on the most recent fuel economy and market share data for the new light-duty vehicle fleet. Model year 1990 fuel economies are weighted based on the sales of the first six months of model year 1990 (from September 1989 to March 1990). Sales-weighted fuel economy of all new automobiles decreased in the first six months of model year 1990, from 28.0 mpg in model year 1989 to 27.7 mpg. The compact, midsize, and large size classes, which together claimed 75% of the new automobile market, each showed fuel economy declines of 0.4 mpg or more. Unlike automobiles, new 1990 light trucks showed an overall 0.4 mpg gain from model year 1989. This increase was primarily due to the increased fuel economy of the small van size class. In the first half of model year 1990, small van replaced small pickup as the second most popular light truck size class. Although the fuel economy of light trucks improved, the larger market share of automobiles in the light-duty vehicle market (automobiles and light trucks combined) and the decreased fuel economy in automobiles resulted in an overall reduction of 0.2 mpg for the entire light-duty vehicle fleet in the first half of model year 1990. Also, in the first half of model year 1990, light trucks claimed more than 33% of the light-duty vehicle market--a considerable increase from the 19.8% share in 1976. 9 figs., 18 tabs.

  6. Creation and Testing of the ACES Heavy Heavy-Duty Diesel Engine...

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

    The Advanced Collaborative Emissions Study (ACES):Phase 3 Evaluation of the European PMP Methodologies Using Chassis Dynamometer and On-road Testing of Heavy-duty Vehicles Advanced ...

  7. Light Duty Vehicle CNG Tanks

    Energy Savers [EERE]

    Duty Vehicle CNG Tanks Dane A. Boysen, PhD Program Director Advanced Research Projects Agency-Energy, US DOE dane.boysen@doe.gov Fiber Reinforced Polymer Composite Manufacturing Workshop Advanced Manufacturing Office, EERE, US DOE Arlington VA, January 13, 2014 Advanced Research Projects Agency-Energy Can I put my luggage in the trunk? Uh, sorry no Commercial CNG Tanks Tank Type I Type IV Material steel carbon fiber Capacity 12 gallon 12 gallon Weight 490 lb 190 lb Cost $1,700 $4,300 50% less

  8. Overview of Light-Duty Vehicle Studies

    Broader source: Energy.gov [DOE]

    Presented at the U.S. Department of Energy Light Duty Vehicle Workshop in Washington, D.C. on July 26, 2010.

  9. Vehicle Technologies Office Merit Review 2015: Development of Advanced High Strength Cast Alloys for Heavy Duty Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Caterpillar at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about development of advanced high...

  10. Vehicle Technologies Office Merit Review 2014: Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel Injectors

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  11. Vehicle Technologies Office Merit Review 2014: Development of Advanced High Strength Cast Alloys for Heavy Duty Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Caterpillar at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about development of advanced high...

  12. Heavy Vehicle Propulsion Materials

    SciTech Connect (OSTI)

    Ray Johnson

    2000-01-31

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

  13. WORKSHOP REPORT:Light-Duty Vehicles Technical Requirements and...

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

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

  14. Progress on DOE Vehicle Technologies Light-Duty Diesel Engine...

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

    on DOE Vehicle Technologies Light-Duty Diesel Engine Efficiency and Emissions Milestones Progress on DOE Vehicle Technologies Light-Duty Diesel Engine Efficiency and Emissions ...

  15. Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel...

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

    and Emissions Optimization of Heavy-Duty Diesel Engines using Model-Based Transient Calibration Fuel Efficiency and Emissions Optimization of Heavy-Duty Diesel Engines using ...

  16. WORKSHOP REPORT:Light-Duty Vehicles Technical Requirements and Gaps for

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

    Lightweight and Propulsion Materials | Department of Energy Light-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials WORKSHOP REPORT:Light-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials PDF icon wr_ldvehicles.pdf More Documents & Publications WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials Summary of the Output from the VTP Advanced

  17. Statistical Characterization of Medium-Duty Electric Vehicle Drive Cycles

    SciTech Connect (OSTI)

    Prohaska, Robert; Duran, Adam; Ragatz, Adam; Kelly, Kenneth

    2015-05-03

    In an effort to help commercialize technologies for electric vehicles (EVs) through deployment and demonstration projects, the U.S. Department of Energy's (DOE's) American Recovery and Reinvestment Act (ARRA) provided funding to participating U.S. companies to cover part of the cost of purchasing new EVs. Within the medium- and heavy-duty commercial vehicle segment, both Smith Electric Newton and and Navistar eStar vehicles qualified for such funding opportunities. In an effort to evaluate the performance characteristics of the new technologies deployed in these vehicles operating under real world conditions, data from Smith Electric and Navistar medium-duty EVs were collected, compiled, and analyzed by the National Renewable Energy Laboratory's (NREL) Fleet Test and Evaluation team over a period of 3 years. More than 430 Smith Newton EVs have provided data representing more than 150,000 days of operation. Similarly, data have been collected from more than 100 Navistar eStar EVs, resulting in a comparative total of more than 16,000 operating days. Combined, NREL has analyzed more than 6 million kilometers of driving and 4 million hours of charging data collected from commercially operating medium-duty electric vehicles in various configurations. In this paper, extensive duty-cycle statistical analyses are performed to examine and characterize common vehicle dynamics trends and relationships based on in-use field data. The results of these analyses statistically define the vehicle dynamic and kinematic requirements for each vehicle, aiding in the selection of representative chassis dynamometer test cycles and the development of custom drive cycles that emulate daily operation. In this paper, the methodology and accompanying results of the duty-cycle statistical analysis are presented and discussed. Results are presented in both graphical and tabular formats illustrating a number of key relationships between parameters observed within the data set that relate to medium duty EVs.

  18. Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction

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

    Strategies Medium-Duty Vehicle Idle Reduction Strategies to someone by E-mail Share Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Facebook Tweet about Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Twitter Bookmark Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Google Bookmark Alternative Fuels Data Center: Medium-Duty Vehicle Idle Reduction Strategies on Delicious Rank Alternative Fuels Data

  19. Heavy Vehicle Systems

    SciTech Connect (OSTI)

    Sid Diamond; Richard Wares; Jules Routbort

    2000-04-11

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

  20. Statistical Characterization of Medium-Duty Electric Vehicle Drive Cycles; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Prohaska, R.; Duran, A.; Ragatz, A.; Kelly, K.

    2015-05-03

    With funding from the U.S. Department of Energy’s Vehicle Technologies Office, the National Renewable Energy Laboratory (NREL) conducts real-world performance evaluations of advanced medium- and heavy-duty fleet vehicles. Evaluation results can help vehicle manufacturers fine-tune their designs and assist fleet managers in selecting fuel-efficient, low-emission vehicles that meet their economic and operational goals. In 2011, NREL launched a large-scale performance evaluation of medium-duty electric vehicles. With support from vehicle manufacturers Smith and Navistar, NREL research focused on characterizing vehicle operation and drive cycles for electric delivery vehicles operating in commercial service across the nation.

  1. High Efficiency Clean Combustion for Heavy-Duty Engine | Department...

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

    PDF icon deer09zhang.pdf More Documents & Publications Heavy Truck Engine Development & HECC High Efficiency Clean Combustion for Heavy-Duty Engine Heavy-Duty Engine Combustion ...

  2. A High Temperature Direct Vehicle Exhaust Flowmeter for Heavy...

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

    Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) ... of Real-World Emissions from Heavy-Duty Diesel Vehicles: The State-of-the-Art Emerging ...

  3. alternative fuel light-duty vehicles

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

    Light-Duty Vehicles T O F E N E R G Y D E P A R T M E N U E N I T E D S T A T S O F A E R I C A M SUMMARY OF RESULTS FROM THE NATIONAL RENEWABLE ENERGY LABORATORY'S VEHICLE EVALUATION DATA COLLECTION EFFORTS Alternative Fuel Light-Duty Vehicles SUMMARY OF RESULTS FROM THE NATIONAL RENEWABLE ENERGY LABORATORY'S VEHICLE EVALUATION DATA COLLECTION EFFORTS PEG WHALEN KENNETH KELLY ROB MOTTA JOHN BRODERICK MAY 1996 N T Y A U E O F E N E R G D E P A R T M E N I T E D S T A T S O F A E R I C M Summary

  4. Making a Difference: Heavy-Duty Combustion Engine Research Saved Billions

    Broader source: Energy.gov [DOE]

    More than 10 million heavy-duty vehicles drive on U.S. roads each day, hauling goods, transporting people, and performing essential tasks like utility repair. However, these vehicles would be very different today if it wasn’t for the work of the Energy Department’s Vehicle Technologies Office (VTO).

  5. Making a Difference: Heavy-Duty Combustion Engine Research Saved...

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

    Heavy-Duty Combustion Engine Research Saved Billions Making a Difference: Heavy-Duty Combustion Engine Research Saved Billions December 29, 2015 - 12:22pm Addthis Sandia researcher ...

  6. Transient Simulation of a 2007 Prototype Heavy-Duty Engine |...

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

    Simulation of a 2007 Prototype Heavy-Duty Engine Transient Simulation of a 2007 Prototype Heavy-Duty Engine 2004 Diesel Engine Emissions Reduction (DEER) Conference PresentationL ...

  7. Difficulty of Measuring Emissions from Heavy-Duty Engines Equipped...

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

    Difficulty of Measuring Emissions from Heavy-Duty Engines Equipped with SCR and DPF Difficulty of Measuring Emissions from Heavy-Duty Engines Equipped with SCR and DPF In reference ...

  8. APBF-DEC Heavy Duty NOx Adsorber/DPF Project: Heavy Duty Linehaul Platform

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

    Project Update | Department of Energy Ricardo Inc., Chicago Technical Center PDF icon deer_2003_may.pdf More Documents & Publications Status of APBF-DEC NOx Adsorber/DPF Projects APBF- DEC Heavy-Duty NOx Adsorber/DPF Project: Catalyst Aging Study APBF-DEC Light-duty NOx Adsorber/DPF Project

  9. Light-Duty Vehicle Energy Demand, Demographics, and Travel Behavior

    U.S. Energy Information Administration (EIA) Indexed Site

    EIA Conference July 15, 2014 | Washington, DC By Trisha Hutchins, Office of Energy Consumption and Efficiency Analysis Light-duty vehicle energy demand, demographics, and travel behavior Examining changes in light-duty vehicle travel trends 2 EIA Conference: Light-duty vehicle energy demand, demographics, and travel behavior July 15, 2014 * Recent data indicate possible structural shift in travel behavior, measured as vehicle miles traveled (VMT) - VMT per licensed driver, vehicles per capita,

  10. Hybrid options for light-duty vehicles.

    SciTech Connect (OSTI)

    An, F., Stodolsky, F.; Santini, D.

    1999-07-19

    Hybrid electric vehicles (HEVs) offer great promise in improving fuel economy. In this paper, we analyze why, how, and by how much vehicle hybridization can reduce energy consumption and improve fuel economy. Our analysis focuses on efficiency gains associated solely with vehicle hybridization. We do not consider such other measures as vehicle weight reduction or air- and tire-resistance reduction, because such measures would also benefit conventional technology vehicles. The analysis starts with understanding the energy inefficiencies of light-duty vehicles associated with different operation modes in US and Japanese urban and highway driving cycles, with the corresponding energy-saving potentials. The potential for fuel economy gains due to vehicle hybridization can be estimated almost exclusively on the basis of three elements: the reducibility of engine idling operation, the recoverability of braking energy losses, and the capability of improving engine load profiles to gain efficiency associated with specific HEV configurations and control strategies. Specifically, we evaluate the energy efficiencies and fuel economies of a baseline MY97 Corolla-like conventional vehicle (CV), a hypothetical Corolla-based minimal hybrid vehicle (MHV), and a MY98 Prius-like full hybrid vehicle (FHV). We then estimate energy benefits of both MHVs and FHVs over CVs on a performance-equivalent basis. We conclude that the energy benefits of hybridization vary not only with test cycles, but also with performance requirements. The hybrid benefits are greater for ''Corolla (high) performance-equivalent'' vehicles than for ''Prius (low) performance-equivalent'' vehicles. An increasing acceleration requirement would result in larger fuel economy benefits from vehicle hybridization.

  11. Vehicle Technologies Office AVTA: Light Duty Alternative Fuel and Advanced

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

    Vehicle Data | Department of Energy Office AVTA: Light Duty Alternative Fuel and Advanced Vehicle Data Vehicle Technologies Office AVTA: Light Duty Alternative Fuel and Advanced Vehicle Data The Vehicle Technologies Office (VTO) supports testing and data collection on a wide range of advanced and alternative fuel vehicles and technologies through the Advanced Vehicle Testing Activity (AVTA) . The following table has downloadable performance, reliability, and driver behavior data for selected

  12. Medium Duty Electric Vehicle Demonstration Project

    SciTech Connect (OSTI)

    Mackie, Robin J. D.

    2015-05-31

    The Smith Electric Vehicle Demonstration Project (SDP) was integral to the Smith business plan to establish a manufacturing base in the United States (US) and produce a portfolio of All Electric Vehicles (AEV’s) for the medium duty commercial truck market. Smith focused on the commercial depot based logistics market, as it represented the market that was most ready for the early adoption of AEV technology. The SDP enabled Smith to accelerate its introduction of vehicles and increase the size of its US supply chain to support early market adoption of AEV’s that were cost competitive, fully met the needs of a diverse set of end users and were compliant with Federal safety and emissions requirements. The SDP accelerated the development and production of various electric drive vehicle systems to substantially reduce petroleum consumption, reduce vehicular emissions of greenhouse gases (GHG), and increase US jobs.

  13. Lifecycle-analysis for heavy vehicles.

    SciTech Connect (OSTI)

    Gaines, L.

    1998-04-16

    Various alternative fuels and improved engine and vehicle systems have been proposed in order to reduce emissions and energy use associated with heavy vehicles (predominantly trucks). For example, oil companies have proposed improved methods for converting natural gas to zero-aromatics, zero-sulfur diesel fuel via the Fischer-Tropsch process. Major heavy-duty diesel engine companies are working on ways to simultaneously reduce particulate-matter and NOX emissions. The trend in heavy vehicles is toward use of lightweight materials, tires with lower rolling resistance, and treatments to reduce aerodynamic drag. In this paper, we compare the Mecycle energy use and emissions from trucks using selected alternatives, such as Fisher-Tropsch diesel fuel and advanced fuel-efficient engines. We consider heavy-duty, Class 8 tractor-semitrailer combinations for this analysis. The total life cycle includes production and recycling of the vehicle itself, extraction, processing, and transportation of the fuel itself, and vehicle operation and maintenance. Energy use is considered in toto, as well as those portions that are imported, domestic, and renewable. Emissions of interest include greenhouse gases and criteria pollutants. Angonne's Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) model is used to generate per-vehicle fuel cycle impacts. Energy use and emissions for materials manufacturing and vehicle disposal are estimated by means of materials information from Argonne studies. We conclude that there are trade-offs among impacts. For example, the lowest fossil energy use does not necessarily result in lowest total energy use, and lower tailpipe emissions may not necessarily result in lower lifecycle emissions of all criteria pollutants.

  14. Exhaust Heat Driven Rankine Cycle for a Heavy Duty Diesel Engine |

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

    Department of Energy Presents progress to date and plans to develop a viable Rankine engine to harness useful brake power from wasted heat energy in heavy duty truck engine exhaust PDF icon deer11_singh.pdf More Documents & Publications Increased Engine Efficiency via Advancements in Engine Combustion Systems Roadmapping Engine Technology for Post-2020 Heavy Duty Vehicles Super Truck -- 50% Improvement In Class 8 Freight Efficiency

  15. EERE Success Story-Heavy Vehicle Fuel Efficiency is no Drag ...

    Energy Savers [EERE]

    Designing heavy-duty vehicles to be more aerodynamic is one major way to improve vehicle ... The study estimated trailer side skirt and tail devices used by long-haul truck fleets ...

  16. Reducing Light Duty Vehicle Fuel Consumption and Greenhouse Gas...

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

    and Greenhouse Gas Emissions: The Combined Potential of Hybrid Technology and Behavioral Adaptation Title Reducing Light Duty Vehicle Fuel Consumption and Greenhouse Gas...

  17. Duty Cycle Analysis & Tools: Maximizing Vehicle Performance (Presentation)

    SciTech Connect (OSTI)

    Walkowicz, K.

    2009-10-28

    Shows that the benefits of using hybrid vehicle trucks in fleets depends on the duty cycle, or how the vehicles will be driven (e.g., stop and go) over a particular route (e.g., urban or rural).

  18. Fuel Economy Improvement Potential of a Heavy Duty Truck using V2x Communication

    SciTech Connect (OSTI)

    LaClair, Tim J; Verma, Rajeev; Norris, Sarah; Cochran, Robert

    2014-01-01

    In this paper, we introduce an intelligent driver assistance system to reduce fuel consumption in heavy duty vehicles irrespective of the driving style of the driver. We specifically study the potential of V2I and V2V communications to reduce fuel consumption in heavy duty trucks. Most ITS communications today are oriented towards vehicle safety, with communications strategies and hardware that tend to focus on low latency. This has resulted in technologies emerging with a relatively limited range for the communications. For fuel economy, it is expected that most benefits will be derived with greater communications distances, at the scale of many hundred meters or several kilometers, due to the large inertia of heavy duty vehicles. It may therefore be necessary to employ different communications strategies for ITS applications aimed at fuel economy and other environmental benefits than what is used for safety applications in order to achieve the greatest benefits.

  19. LNT + SCR Aftertreatment for Medium-Heavy Duty Applications:...

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

    LNT + SCR Aftertreatment for Medium-Heavy Duty Applications: A Systems Approach Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER ...

  20. NOx Adsorber Regeneration Phenomena In Heavy Duty Applications...

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

    Adsorber Regeneration Phenomena In Heavy Duty Applications NOx Adsorber Regeneration ... More Documents & Publications Fuel-Borne Reductants for NOx Aftertreatment: Preliminary ...

  1. Using LNG as a Fuel in Heavy-Duty Tractors

    SciTech Connect (OSTI)

    Liquid Carbonic, Inc. and Trucking Research Institute

    1999-08-09

    Recognizing the lack of operational data on alternative fuel heavy-truck trucks, NREL contracted with the Trucking Research Institute (TRI) in 1994 to obtain a cooperative agreement with Liquid Carbonic. The purpose of this agreement was to (1) purchase and operate liquid natural gas- (LNG-) powered heavy-duty tractor-trailers with prototype Detroit Diesel Corporation (DDC) Series 60 natural gas (S60G) engines in over-the-road commercial service applications; and (2) collect and provide operational data to DDC to facilitate the on-road prototype development of the engine and to NREL for the Alternative Fuels Data Center. The vehicles operated from August 1994 through April of 1997 and led to a commercially available, emissions-certified S60G in 1998. This report briefly documents the engine development, the operational characteristics of LNG, and the lessons learned during the project.

  2. Heavy-Duty Engine Combustion Optimization for High Thermal Efficiency...

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

    PDF icon deer07zhang.pdf More Documents & Publications High Efficiency Clean Combustion for Heavy-Duty Engine Heavy Truck Engine Development & HECC A Micro-Variable Circular ...

  3. Difficulty of Measuring Emissions from Heavy-Duty Engines Equipped with SCR

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

    and DPF | Department of Energy In reference to legacy heavy-duty vehicles, emissions and fuel use are less closely related to immediate engine load than was the case without the use of aftertreatments. PDF icon p-05_covington.pdf More Documents & Publications Can We Accurately Measure In-Use Emissions from Heavy-Duty Diesel Engines? On-Road Particle Matter Emissions from a MY 2010 Compliant HD Diesel Vehicle Driving Across the U.S. Effect of Engine-Out NOx Control Strategies on PM Size

  4. NOx Adsorber Regeneration Phenomena In Heavy Duty Applications | Department

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

    of Energy 3 DEER Conference Presentation: Oak Ridge National Laboratory PDF icon 2003_deer_west.pdf More Documents & Publications Fuel-Borne Reductants for NOx Aftertreatment: Preliminary EtOH SCR Study Fuels for Advanced CIDI Engines and Fuel Cells: 2000 Annual Progress Report APBF-DEC Heavy Duty NOx Adsorber/DPF Project: Heavy Duty Linehaul Platform Project Update

  5. The transportable heavy-duty engine emissions testing laboratory

    SciTech Connect (OSTI)

    Not Available

    1991-05-01

    West Virginia University has designed and constructed a Transportable Emissions Testing Laboratory for measuring emissions from heavy duty vehicles, such as buses and trucks operating on conventional and alternative fuels. The laboratory facility can be transported to a test site located at, or nearby, the home base of the vehicles to be tested. The laboratory has the capability of measuring vehicle emissions as the vehicle is operated under either transient or steady state loads and speeds. The exhaust emissions from the vehicle is sampled and the levels of the constituents of the emission are measured. The laboratory consists of two major units; a power absorber unit and an emissions measurement unit. A power absorber unit allows for the connection of a dynamic load to the drive train of the vehicle so that the vehicle can be driven'' through a test cycle while actually mounted on a stationary test bed. The emissions unit contains instrumentation and equipment which allows for the dilution of the vehicle's exhaust with air. The diluteed exhaust is sampled and analyzed to measure the level of concentration of those constituents which have been identified to have impact on the clean environment. Sampling probes withdraw diluted exhaust which is supplied to a number of different exhaust gas analysis instruments. The exhaust gas analysis instruments have the capability to measure the levels of the following exhaust gas constituents: carbon monoxide (CO), carbon dioxide (CO{sub 2}), oxides of nitrogen (NO{sub x}), unburned hydrocarbons (HC), formaldehyde (HCHO), methane and particulate matter. Additional instruments or sampling devices can be installed whenever measurements of additional constituents are desired. A computer based, data acquisition system is used to continuously monitor a wide range of parameters important to the operation of the test and to record the test results.

  6. The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow...

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

    The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow The Diesel Engine Powering Light-Duty Vehicles: Today and Tomorrow 2004 Diesel Engine Emissions Reduction (DEER) ...

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

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

    More Documents & Publications Thermoelectric HVAC for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications ...

  8. Vehicle Technologies Office Issues Notice of Intent for Medium...

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

    Announcement (FOA) entitled "Medium and Heavy Duty Vehicle Powertrain Electrification and ... electric-drive powertrain technologies for medium and heavy duty vehicles. ...

  9. Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration...

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

    Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and Evaluation Vehicle Technologies Office Merit Review 2015: Medium and Heavy-Duty Vehicle Field Evaluations ...

  10. Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies

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

    Heavy-Duty Truck Idle Reduction Technologies to someone by E-mail Share Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Facebook Tweet about Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Twitter Bookmark Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Google Bookmark Alternative Fuels Data Center: Heavy-Duty Truck Idle Reduction Technologies on Delicious Rank Alternative Fuels Data Center: Heavy-Duty

  11. Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines...

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

    Charge Motion for 2007-2010 Heavy Duty Diesel Engines Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines 2003 DEER Conference Presentation: AVL Powertrain Engineering ...

  12. Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions...

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

    Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control PDF icon ...

  13. Alternative Fuels Data Center: Light-Duty Vehicle Idle Reduction Strategies

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

    Light-Duty Vehicle Idle Reduction Strategies to someone by E-mail Share Alternative Fuels Data Center: Light-Duty Vehicle Idle Reduction Strategies on Facebook Tweet about Alternative Fuels Data Center: Light-Duty Vehicle Idle Reduction Strategies on Twitter Bookmark Alternative Fuels Data Center: Light-Duty Vehicle Idle Reduction Strategies on Google Bookmark Alternative Fuels Data Center: Light-Duty Vehicle Idle Reduction Strategies on Delicious Rank Alternative Fuels Data Center: Light-Duty

  14. Scenario analysis of hybrid class 3-7 heavy vehicles.

    SciTech Connect (OSTI)

    An, F.; Stodolsky, F.; Vyas, A.; Cuenca, R.; Eberhardt, J. J.

    1999-12-23

    The effects of hybridization on heavy-duty vehicles are not well understood. Heavy vehicles represent a broader range of applications than light-duty vehicles, resulting in a wide variety of chassis and engine combinations, as well as diverse driving conditions. Thus, the strategies, incremental costs, and energy/emission benefits associated with hybridizing heavy vehicles could differ significantly from those for passenger cars. Using a modal energy and emissions model, they quantify the potential energy savings of hybridizing commercial Class 3-7 heavy vehicles, analyze hybrid configuration scenarios, and estimate the associated investment cost and payback time. From the analysis, they conclude that (1) hybridization can significantly reduce energy consumption of Class 3-7 heavy vehicles under urban driving conditions; (2) the grid-independent, conventional vehicle (CV)-like hybrid is more cost-effective than the grid-dependent, electric vehicle (EV)-like hybrid, and the parallel configuration is more cost-effective than the series configuration; (3) for CV-like hybridization, the on-board engine can be significantly downsized, with a gasoline or diesel engine used for SUVs perhaps being a good candidate for an on-board engine; (4) over the long term, the incremental cost of a CV-like, parallel-configured Class 3-4 hybrid heavy vehicle is about %5,800 in the year 2005 and $3,000 in 2020, while for a Class 6-7 truck, it is about $7,100 in 2005 and $3,300 in 2020; and (5) investment payback time, which depends on the specific type and application of the vehicle, averages about 6 years under urban driving conditions in 2005 and 2--3 years in 2020.

  15. Vehicle Technologies Office Merit Review 2014: Cummins-ORNL/FEERC Emissions CRADA: NOx Control & Measurement Technology for Heavy-Duty Diesel Engines

    Broader source: Energy.gov [DOE]

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

  16. Vehicle Technologies Office: Parasitic Loss Reduction Research and

    Energy Savers [EERE]

    and Results | Department of Energy Medium and Heavy Duty Vehicle Data and Results Vehicle Technologies Office: AVTA - Medium and Heavy Duty Vehicle Data and Results The Vehicle Technologies Office supports work to collect extensive data on light-duty, medium-duty and heavy-duty vehicles through the Advanced Vehicle Testing Activity (AVTA). Idaho National Laboratory and the National Renewable Energy Laboratory (NREL) test and evaluate medium and heavy-duty fleet vehicles that use hybrid

  17. NREL: Transportation Research - Light-Duty Vehicle Thermal Management

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

    Light-Duty Vehicle Thermal Management Image of a semi-transparent car with parts of the engine highlighted in green. NREL evaluates technologies and methods such as advanced window glazing, cooling heat-pipe systems, parked car ventilation, and direct energy recovery. Illustration by Josh Bauer, NREL National Renewable Energy Laboratory (NREL) researchers are focused on improving the thermal efficiency of light-duty vehicles (LDVs) while maintaining the thermal comfort that drivers expect.

  18. Top U.S. Automakers Collaborate to Improve Heavy-Duty Freight Efficiency |

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

    Department of Energy U.S. Automakers Collaborate to Improve Heavy-Duty Freight Efficiency Top U.S. Automakers Collaborate to Improve Heavy-Duty Freight Efficiency November 22, 2013 - 5:37pm Addthis As part of the 21st Century Truck Partnership, the Army will demonstrate technology that converts waste heat from an exhaust system to electricity used in its Stryker vehicle. | Photo courtesy of U.S. Army As part of the 21st Century Truck Partnership, the Army will demonstrate technology that

  19. Transportable Heavy Duty Emissions Testing Laboratory and Research Program

    SciTech Connect (OSTI)

    David Lyons

    2008-03-31

    The objective of this program was to quantify the emissions from heavy-duty vehicles operating on alternative fuels or advanced fuel blends, often with novel engine technology or aftertreatment. In the first year of the program West Virginia University (WVU) researchers determined that a transportable chassis dynamometer emissions measurement approach was required so that fleets of trucks and buses did not need to be ferried across the nation to a fixed facility. A Transportable Heavy-Duty Vehicle Emissions Testing Laboratory (Translab) was designed, constructed and verified. This laboratory consisted of a chassis dynamometer semi-trailer and an analytic trailer housing a full scale exhaust dilution tunnel and sampling system which mimicked closely the system described in the Code of Federal Regulations for engine certification. The Translab was first used to quantify emissions from natural gas and methanol fueled transit buses, and a second Translab unit was constructed to satisfy research demand. Subsequent emissions measurement was performed on trucks and buses using ethanol, Fischer-Tropsch fuel, and biodiesel. A medium-duty chassis dynamometer was also designed and constructed to facilitate research on delivery vehicles in the 10,000 to 20,000lb range. The Translab participated in major programs to evaluate low-sulfur diesel in conjunction with passively regenerating exhaust particulate filtration technology, and substantial reductions in particulate matter were recorded. The researchers also participated in programs to evaluate emissions from advanced natural gas engines with closed loop feedback control. These natural gas engines showed substantially reduced levels of oxides of nitrogen. For all of the trucks and buses characterized, the levels of carbon monoxide, oxides of nitrogen, hydrocarbons, carbon dioxide and particulate matter were quantified, and in many cases non-regulated species such as aldehydes were also sampled. Particle size was also quantified during selected studies. A laboratory was established at WVU to provide for studies which supported and augmented the Translab research, and to provide for development of superior emissions measurement systems. This laboratory research focused on engine control and fuel sulfur issues. In recent years, as engine and aftertreatment technologies advanced, emissions levels were reduced such that they were at or below the Translab detectable limits, and in the same time frame the US Environmental Protection Agency required improved measurement methodologies for engine emissions certification. To remain current and relevant, the researchers designed a new Translab analytic system, housed in a container which can be transported on a semi-trailer. The new system's dilution tunnel flow was designed to use a subsonic venturi with closed loop control of blower speed, and the secondary dilution and particulate matter filter capture were designed to follow new EPA engine certification procedures. A further contribution of the program has been the development of techniques for creating heavy-duty vehicle test schedules, and the creation of schedules to mimic a variety of truck and bus vocations.

  20. DOE Hydrogen Storage Technical Performance Targets for Light-Duty Vehicles

    Broader source: Energy.gov [DOE]

    This table summarizes technical performance targets for hydrogen storage systems onboard light-duty vehicles.

  1. Heavy Duty HCCI Development Activities - DOE High Efficiency...

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

    Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck ... Compression Ignition (HCCI) Engines Heavy-Duty Low Temperature Combustion Development ...

  2. NAFTA Heavy Duty Engine and Aftertreatment Technology: Status...

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

    Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006deerlysinger.pdf More Documents & Publications Heavy-Duty Engine ...

  3. The Road to Improved Heavy Duty Fuel Economy

    Broader source: Energy.gov [DOE]

    Heavy duty diesel engine fuel economy is improved by lowering the viscosity of engine lubricant, especially when engine speed is increased or load is decreased, as in long distance on-highway driving

  4. New Demands on Heavy Duty Engine Management Systems

    Broader source: Energy.gov [DOE]

    The purpose of this research was to investigate the potential of emissions-based process control to meet future heavy-duty emissions legislation by identifying suitable actuated variables and developing hardware and related controllers.

  5. Heavy Vehicle Propulsion Materials Program

    SciTech Connect (OSTI)

    Diamond, S.; Johnson, D.R.

    1999-04-26

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

  6. The ethanol heavy-duty truck fleet demonstration project

    SciTech Connect (OSTI)

    1997-06-01

    This project was designed to test and demonstrate the use of a high- percentage ethanol-blended fuel in a fleet of heavy-duty, over-the- road trucks, paying particular attention to emissions, performance, and repair and maintenance costs. This project also represents the first public demonstration of the use of ethanol fuels as a viable alternative to conventional diesel fuel in heavy-duty engines.

  7. Emission Controls for Heavy-Duty Trucks | Department of Energy

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

    Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006_deer_clerc.pdf More Documents & Publications SCRT Technology for Retrofit of Heavy-Duty Diesel Applications Effects of Biomass Fuels on Engine & System Out Emissions for Short Term Endurance Development of SCR on Diesel Particulate Filter System for Heavy Duty Applications

  8. Statistical Characterization of Medium-Duty Electric Vehicle Drive Cycles: Preprint

    SciTech Connect (OSTI)

    Prohaska, R.; Duran, A.; Ragatz, A.; Kelly, K.

    2015-05-01

    In an effort to help commercialize technologies for electric vehicles (EVs) through deployment and demonstration projects, the U.S. Department of Energy’s (DOE's) American Recovery and Reinvestment Act (ARRA) provided funding to participating U.S. companies to cover part of the cost of purchasing new EVs. Within the medium- and heavy-duty commercial vehicle segment, both Smith Electric Newton and and Navistar eStar vehicles qualified for such funding opportunities. In an effort to evaluate the performance characteristics of the new technologies deployed in these vehicles operating under real world conditions, data from Smith Electric and Navistar medium-duty EVs were collected, compiled, and analyzed by the National Renewable Energy Laboratory's (NREL) Fleet Test and Evaluation team over a period of 3 years. More than 430 Smith Newton EVs have provided data representing more than 150,000 days of operation. Similarly, data have been collected from more than 100 Navistar eStar EVs, resulting in a comparative total of more than 16,000 operating days. Combined, NREL has analyzed more than 6 million kilometers of driving and 4 million hours of charging data collected from commercially operating medium-duty electric vehicles in various configurations. In this paper, extensive duty-cycle statistical analyses are performed to examine and characterize common vehicle dynamics trends and relationships based on in-use field data. The results of these analyses statistically define the vehicle dynamic and kinematic requirements for each vehicle, aiding in the selection of representative chassis dynamometer test cycles and the development of custom drive cycles that emulate daily operation. In this paper, the methodology and accompanying results of the duty-cycle statistical analysis are presented and discussed. Results are presented in both graphical and tabular formats illustrating a number of key relationships between parameters observed within the data set that relate to medium duty EVs.

  9. Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy

    Office of Energy Efficiency and Renewable Energy (EERE)

    2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Cummins Inc. Heavy-Duty Truck Engine Program

  10. Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty

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

    Trucks Truck Stop Electrification for Heavy-Duty Trucks to someone by E-mail Share Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Facebook Tweet about Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Twitter Bookmark Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Google Bookmark Alternative Fuels Data Center: Truck Stop Electrification for Heavy-Duty Trucks on Delicious Rank Alternative

  11. Alternative Fuels Data Center: Sacramento Adds Regional Heavy-Duty LNG

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

    Fueling Station Adds Regional Heavy-Duty LNG Fueling Station to someone by E-mail Share Alternative Fuels Data Center: Sacramento Adds Regional Heavy-Duty LNG Fueling Station on Facebook Tweet about Alternative Fuels Data Center: Sacramento Adds Regional Heavy-Duty LNG Fueling Station on Twitter Bookmark Alternative Fuels Data Center: Sacramento Adds Regional Heavy-Duty LNG Fueling Station on Google Bookmark Alternative Fuels Data Center: Sacramento Adds Regional Heavy-Duty LNG Fueling

  12. Zero Emission Heavy Duty Drayage Truck Demonstration

    Broader source: Energy.gov [DOE]

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

  13. ADOPT: A Historically Validated Light Duty Vehicle Consumer Choice Model

    SciTech Connect (OSTI)

    Brooker, A.; Gonder, J.; Lopp, S.; Ward, J.

    2015-05-04

    The Automotive Deployment Option Projection Tool (ADOPT) is a light-duty vehicle consumer choice and stock model supported by the U.S. Department of Energy’s Vehicle Technologies Office. It estimates technology improvement impacts on U.S. light-duty vehicles sales, petroleum use, and greenhouse gas emissions. ADOPT uses techniques from the multinomial logit method and the mixed logit method estimate sales. Specifically, it estimates sales based on the weighted value of key attributes including vehicle price, fuel cost, acceleration, range and usable volume. The average importance of several attributes changes nonlinearly across its range and changes with income. For several attributes, a distribution of importance around the average value is used to represent consumer heterogeneity. The majority of existing vehicle makes, models, and trims are included to fully represent the market. The Corporate Average Fuel Economy regulations are enforced. The sales feed into the ADOPT stock model. It captures key aspects for summing petroleum use and greenhouse gas emissions This includes capturing the change in vehicle miles traveled by vehicle age, the creation of new model options based on the success of existing vehicles, new vehicle option introduction rate limits, and survival rates by vehicle age. ADOPT has been extensively validated with historical sales data. It matches in key dimensions including sales by fuel economy, acceleration, price, vehicle size class, and powertrain across multiple years. A graphical user interface provides easy and efficient use. It manages the inputs, simulation, and results.

  14. Thermoelectric Opportunities in Light-Duty Vehicles

    Broader source: Energy.gov [DOE]

    Overview of thermoelectric (TE) vehicle exhaust heat recovery, TE HVAC systems, and OEM role in establishing guidelines for cost, power density, systems integration, and durability.

  15. NREL Shows Heavy Duty Hybrid Trucks Deliver on Fuel Economy - News Releases

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

    | NREL NREL Shows Heavy Duty Hybrid Trucks Deliver on Fuel Economy September 11, 2012 A performance evaluation of Class 8 hybrid electric tractor trailers compared with similar conventional vehicles by the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) shows significant improvements in fuel economy. "During our 13-month study, the hybrid tractors demonstrated 13.7 percent higher fuel economy than the conventional tractors, resulting in a 12 percent

  16. Chapter 8 - Advancing Clean Transportation and Vehicle Systems...

    Office of Environmental Management (EM)

    Transportation is a complex sector composed of light duty, medium duty, heavy duty, and non-highway vehicles; rail; aircraft; and ships used for personal transport, movement of ...

  17. Heavy Vehicle Technologies Program Retrospective and Outlook

    SciTech Connect (OSTI)

    James J. Eberhardt

    1999-04-10

    OHVT Mission is to conduct, in collaboration with our heavy vehicle industry partners and their suppliers, a customer-focused national program to research and develop technologies that will enable trucks and other heavy vehicles to be more energy efficient and able to use alternative fuels while simultaneously reducing emissions.

  18. Demonstrating and evaluating heavy-duty alternative fuel operations

    SciTech Connect (OSTI)

    Peerenboom, W.

    1998-02-01

    The principal objectives of this project was to understand the effects of using an alternative fuel on a truck operating fleet through actual operation of trucks. Information to be gathered was expected to be anecdotal, as opposed to statistically viable, because the Trucking Research institute (TRI) recognized that projects could not attract enough trucks to produce statistically credible volumes of data. TRI was to collect operational data, and provide them to NREL, who would enter the data into the alternative fuels database being constructed for heavy-duty trucks at the time. NREL would also perform data analysis, with the understanding that the demonstrations were generally pre-production model engines and vehicles. Other objectives included providing information to the trucking industry on the availability of alternative fuels, developing the alternative fuels marketplace, and providing information on experience with alternative fuels. In addition to providing information to the trucking industry, an objective was for TRI to inform NREL and DOE about the industry, and give feedback on the response of the industry to developments in alternative fuels in trucking. At the outset, only small numbers of vehicles participated in most of the projects. Therefore, they had to be considered demonstrations of feasibility, rather than data gathering tests from which statistically significant conclusions might be drawn. Consequently, data gathered were expected to be useful for making estimates and obtaining valuable practical lessons. Project data and lessons learned are the subjects of separate project reports. This report concerns itself with the work of TRI in meeting the overall objectives of the TRI-NREL partnership.

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

    Broader source: Energy.gov [DOE]

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

  20. Vehicle Technologies Office: Alternative Fuels Research and Deployment...

    Office of Environmental Management (EM)

    ... on light-duty vehicles 21st Century Truck Partnership, an industry partnership to dramatically increase heavy-duty vehicle fuel economy while continuing emissions reduction. ...

  1. Integrated Mathematical Modeling Software Series of Vehicle Propulsion...

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

    Power & Energyfrom an Army Ground Vehicle Perspective Truck Duty Cycle and Performance Data Collection and Analysis Program WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles ...

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

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

    on a 'Euro VI' Heavy-duty Engine using the PMP Methodologies A High Temperature Direct Vehicle Exhaust Flowmeter for Heavy Duty Diesel Emission Measurements. Transonic ...

  3. Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile...

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

    "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab Measuring "Real World" Heavy-Duty Diesel Emissions with a Mobile Lab 2002 DEER Conference Presentation: University of ...

  4. SCR Potential and Issues for Heavy-Duty Applications in the United...

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

    Potential and Issues for Heavy-Duty Applications in the United States SCR Potential and Issues for Heavy-Duty Applications in the United States 2004 Diesel Engine Emissions ...

  5. ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit...

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

    ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit Buses ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit Buses 2002 DEER Conference Presentation: ...

  6. Reduction of Heavy-Duty Fuel Consumption and CO2 Generation ...

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

    Heavy-Duty Fuel Consumption and CO2 Generation -- What the Industry Does and What the Government Can Do Reduction of Heavy-Duty Fuel Consumption and CO2 Generation -- What the ...

  7. High-Load Partially Premixed Combustion in a Heavy-Duty Diesel...

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

    High-Load Partially Premixed Combustion in a Heavy-Duty Diesel Engine High-Load Partially Premixed Combustion in a Heavy-Duty Diesel Engine 2005 Diesel Engine Emissions Reduction ...

  8. Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits...

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

    Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM and NOX Control Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM and NOX Control The more ...

  9. APBF- DEC Heavy-Duty NOx Adsorber/DPF Project: Catalyst Aging...

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

    DEC Heavy-Duty NOx AdsorberDPF Project: Catalyst Aging Study APBF- DEC Heavy-Duty NOx AdsorberDPF Project: Catalyst Aging Study 2004 Diesel Engine Emissions Reduction (DEER) ...

  10. Transportation Energy Futures Series. Potential for Energy Efficiency Improvement Beyond the Light-Duty-Vehicle Sector

    SciTech Connect (OSTI)

    Vyas, A. D.; Patel, D. M.; Bertram, K. M.

    2013-02-01

    Considerable research has focused on energy efficiency and fuel substitution options for light-duty vehicles, while much less attention has been given to medium- and heavy-duty trucks, buses, aircraft, marine vessels, trains, pipeline, and off-road equipment. This report brings together the salient findings from an extensive review of literature on future energy efficiency options for these non-light-duty modes. Projected activity increases to 2050 are combined with forecasts of overall fuel efficiency improvement potential to estimate the future total petroleum and greenhouse gas (GHG) emissions relative to current levels. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  11. Transportation Energy Futures Series: Potential for Energy Efficiency Improvement Beyond the Light-Duty-Vehicle Sector

    SciTech Connect (OSTI)

    Vyas, A. D.; Patel, D. M.; Bertram, K. M.

    2013-03-01

    Considerable research has focused on energy efficiency and fuel substitution options for light-duty vehicles, while much less attention has been given to medium- and heavy-duty trucks, buses, aircraft, marine vessels, trains, pipeline, and off-road equipment. This report brings together the salient findings from an extensive review of literature on future energy efficiency options for these non-light-duty modes. Projected activity increases to 2050 are combined with forecasts of overall fuel efficiency improvement potential to estimate the future total petroleum and greenhouse gas (GHG) emissions relative to current levels. This is one of a series of reports produced as a result of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

  12. Development and Demonstration of Fischer-Tropsch Fueled Heavy...

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

    Fischer-Tropsch Fueled Heavy-Duty Vehicles with Control Technologies for Reduced Diesel Exhaust Emissions Development and Demonstration of Fischer-Tropsch Fueled Heavy-Duty ...

  13. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling

    Broader source: Energy.gov [DOE]

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

  14. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling

    Broader source: Energy.gov [DOE]

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

  15. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling

    Office of Energy Efficiency and Renewable Energy (EERE)

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  16. Heavy-Duty Low-Temperature and Diesel Combustion & Heavy-Duty Combustion Modeling

    Office of Energy Efficiency and Renewable Energy (EERE)

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

  17. Registrations and vehicle miles of travel of light duty vehicles, 1985--1995

    SciTech Connect (OSTI)

    Hu, P.S.; Davis, S.C.; Schmoyer, R.L.

    1998-02-01

    To obtain vehicle registration data that consistently and accurately reflect the distinction between automobiles and light-duty trucks, Oak Ridge National Laboratory (ORNL) was asked by FHWA to estimate the current and historical vehicle registration numbers of automobiles and of other two-axle four-tire vehicles (i.e., light-duty trucks), and their associated travel. The term automobile is synonymous with passenger car. Passenger cars are defined as all sedans, coupes, and station wagons manufactured primarily for the purpose of carrying passengers. This includes taxicabs, rental cars, and ambulances and hearses on an automobile chassis. Light-duty trucks refer to all two-axle four-tire vehicles other than passenger cars. They include pickup trucks, panel trucks, delivery and passenger vans, and other vehicles such as campers, motor homes, ambulances on a truck chassis, hearses on a truck chassis, and carryalls. In this study, light-duty trucks include four major types: (1) pickup truck, (2) van, (3) sport utility vehicle, and (4) other 2-axle 4-tire truck. Specifically, this project re-estimates statistics that appeared in Tables MV-1 and MV-9 of the 1995 Highway Statistics. Given the complexity of the approach developed in this effort and the incompleteness and inconsistency of the state-submitted data, it is recommended that alternatives be considered by FHWA to obtain vehicle registration data. One alternative is the Polk`s NVPP data (via the US Department of Transportation`s annual subscription to Polk). The second alternative is to obtain raw registration files from individual states` Departments of Motor Vehicles and to decode individual VINs.

  18. Can We Accurately Measure In-Use Emissions from Heavy-Duty Diesel Engines?

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

    | Department of Energy Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_gautam.pdf More Documents & Publications Evaluation of NTE Windows and a Work-Based Method to Determine In-Use Emissions of a Heavy-Duty Diesel Engine Effect of Engine-Out NOx Control Strategies on PM

  19. DOE Technical Targets for Onboard Hydrogen Storage for Light-Duty Vehicles

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

    | Department of Energy Onboard Hydrogen Storage for Light-Duty Vehicles DOE Technical Targets for Onboard Hydrogen Storage for Light-Duty Vehicles This table summarizes technical performance targets for hydrogen storage systems onboard light-duty vehicles. These targets were established through the U.S. DRIVE Partnership, a partnership between the U.S. Department of Energy (DOE), the U.S. Council for Automotive Research (USCAR), energy companies, and utility companies and organizations. View

  20. Vehicle Technologies Office: 2015 Vehicle Systems Annual Progress...

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

    to advancing light-, medium-, and heavy-duty vehicle systems to help maximize the number of electric miles driven and increase the energy efficiency of transportation vehicles. ...

  1. Vehicle Technologies Office: 2014 Vehicle and Systems Simulation...

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

    to advancing light-, medium-, and heavy-duty vehicle systems to help maximize the number of electric miles driven and increase the energy efficiency of transportation vehicles. ...

  2. Modeling Heavy/Medium-Duty Fuel Consumption Based on Drive Cycle Properties

    SciTech Connect (OSTI)

    Wang, Lijuan; Duran, Adam; Gonder, Jeffrey; Kelly, Kenneth

    2015-10-13

    This paper presents multiple methods for predicting heavy/medium-duty vehicle fuel consumption based on driving cycle information. A polynomial model, a black box artificial neural net model, a polynomial neural network model, and a multivariate adaptive regression splines (MARS) model were developed and verified using data collected from chassis testing performed on a parcel delivery diesel truck operating over the Heavy Heavy-Duty Diesel Truck (HHDDT), City Suburban Heavy Vehicle Cycle (CSHVC), New York Composite Cycle (NYCC), and hydraulic hybrid vehicle (HHV) drive cycles. Each model was trained using one of four drive cycles as a training cycle and the other three as testing cycles. By comparing the training and testing results, a representative training cycle was chosen and used to further tune each method. HHDDT as the training cycle gave the best predictive results, because HHDDT contains a variety of drive characteristics, such as high speed, acceleration, idling, and deceleration. Among the four model approaches, MARS gave the best predictive performance, with an average absolute percent error of -1.84% over the four chassis dynamometer drive cycles. To further evaluate the accuracy of the predictive models, the approaches were first applied to real-world data. MARS outperformed the other three approaches, providing an average absolute percent error of -2.2% of four real-world road segments. The MARS model performance was then compared to HHDDT, CSHVC, NYCC, and HHV drive cycles with the performance from Future Automotive System Technology Simulator (FASTSim). The results indicated that the MARS method achieved a comparative predictive performance with FASTSim.

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

    Broader source: Energy.gov [DOE]

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

  4. Desulfurization Effects on a Light-Duty Diesel Vehicle NOx Adsorber Exhaust Emission Control System

    SciTech Connect (OSTI)

    Tatur, M.; Tomazic, D.; Tyrer, H.; Thornton, M.; Kubsh, J.

    2006-05-01

    Analyzes the effects on gaseous emissions, before and after desulfurization, on a light-duty diesel vehicle with a NOx adsorber catalyst.

  5. An Investigation on an Ethylene Gylcol/Water Nanofluid for Heavy Vehicle

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

    Cooling Applications | Department of Energy Use of nanofluids can help reduce radiator frontal area for heavy-duty vehicles and improves fuel efficiency. PDF icon deer08_singh.pdf More Documents & Publications Erosion of Radiator Materials by Nanofluids Overview of Thermal Management Nanofluids for Thermal Conditions … Underhood Heat Transfer

  6. Vehicle Technologies Office: AVTA - Medium and Heavy Duty Vehicle...

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

    Application Technology Manufacturer Fleet Years Collected Delivery Trucks All Electric Smith Newton Various 2012-2014 Class 8 Diesel Tractors Hybrid Electric Kenworth and ...

  7. Can We Accurately Measure In-Use Emissions from Heavy-Duty Diesel...

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

    Can We Accurately Measure In-Use Emissions from Heavy-Duty Diesel Engines? Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). ...

  8. Heavy-Duty Truck Engine: 2007 Emissions with Excellent Fuel Economy...

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

    Heavy-Duty Truck Engine Program PDF icon 2004deernelson.pdf More Documents & Publications High Engine Efficiency at 2010 Emissions Achieving High Efficiency at 2010 Emissions ...

  9. Alternative Fuels Data Center: Coca-Cola Continues to Expand Its Heavy-Duty

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

    Hybrid Fleet in Atlanta Coca-Cola Continues to Expand Its Heavy-Duty Hybrid Fleet in Atlanta to someone by E-mail Share Alternative Fuels Data Center: Coca-Cola Continues to Expand Its Heavy-Duty Hybrid Fleet in Atlanta on Facebook Tweet about Alternative Fuels Data Center: Coca-Cola Continues to Expand Its Heavy-Duty Hybrid Fleet in Atlanta on Twitter Bookmark Alternative Fuels Data Center: Coca-Cola Continues to Expand Its Heavy-Duty Hybrid Fleet in Atlanta on Google Bookmark Alternative

  10. Secretary Chu Announces $187 Million to Improve Vehicle Efficiency for

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

    Heavy-Duty Trucks and Passenger Vehicles | Department of Energy Announces $187 Million to Improve Vehicle Efficiency for Heavy-Duty Trucks and Passenger Vehicles Secretary Chu Announces $187 Million to Improve Vehicle Efficiency for Heavy-Duty Trucks and Passenger Vehicles January 11, 2010 - 12:00am Addthis Columbus, Ind. - At an event today in Columbus, Indiana, Secretary Chu announced the selection of nine projects totaling more than $187 million to improve fuel efficiency for heavy-duty

  11. The transportable heavy-duty engine emissions testing laboratory. Annual progress report, April 1990--April 1991

    SciTech Connect (OSTI)

    Not Available

    1991-05-01

    West Virginia University has designed and constructed a Transportable Emissions Testing Laboratory for measuring emissions from heavy duty vehicles, such as buses and trucks operating on conventional and alternative fuels. The laboratory facility can be transported to a test site located at, or nearby, the home base of the vehicles to be tested. The laboratory has the capability of measuring vehicle emissions as the vehicle is operated under either transient or steady state loads and speeds. The exhaust emissions from the vehicle is sampled and the levels of the constituents of the emission are measured. The laboratory consists of two major units; a power absorber unit and an emissions measurement unit. A power absorber unit allows for the connection of a dynamic load to the drive train of the vehicle so that the vehicle can be ``driven`` through a test cycle while actually mounted on a stationary test bed. The emissions unit contains instrumentation and equipment which allows for the dilution of the vehicle`s exhaust with air. The diluteed exhaust is sampled and analyzed to measure the level of concentration of those constituents which have been identified to have impact on the clean environment. Sampling probes withdraw diluted exhaust which is supplied to a number of different exhaust gas analysis instruments. The exhaust gas analysis instruments have the capability to measure the levels of the following exhaust gas constituents: carbon monoxide (CO), carbon dioxide (CO{sub 2}), oxides of nitrogen (NO{sub x}), unburned hydrocarbons (HC), formaldehyde (HCHO), methane and particulate matter. Additional instruments or sampling devices can be installed whenever measurements of additional constituents are desired. A computer based, data acquisition system is used to continuously monitor a wide range of parameters important to the operation of the test and to record the test results.

  12. Plasma Catalysis for NOx Reduction from Light-Duty Diesel Vehicles

    SciTech Connect (OSTI)

    2005-12-15

    On behalf of the Department of Energy's Office of FreedomCAR and Vehicle Technologies, we are pleased to introduce the Fiscal Year (FY) 2004 Annual Progress Report for the Advanced Combustion Engine R&D Sub-Program. The mission of the FreedomCAR and Vehicle Technologies Program is to develop more energy efficient and environmentally friendly highway transportation technologies that enable Americans to use less petroleum for their vehicles. The Advanced Combustion Engine R&D Sub-Program supports this mission by removing the critical technical barriers to commercialization of advanced internal combustion engines for light-, medium-, and heavy-duty highway vehicles that meet future Federal and state emissions regulations. The primary objective of the Advanced Combustion Engine R&D Sub-Program is to improve the brake thermal efficiency of internal combustion engines from 30 to 45 percent for light-duty applications by 2010; and 40 to 55 percent for heavy-duty applications by 2012; while meeting cost, durability, and emissions constraints. R&D activities include work on combustion technologies that increase efficiency and minimize in-cylinder formation of emissions, as well as aftertreatment technologies that further reduce exhaust emissions. Work is also being conducted on ways to reduce parasitic and heat transfer losses through the development and application of thermoelectrics and turbochargers that include electricity generating capability, and conversion of mechanically driven engine components to be driven via electric motors. This introduction serves to outline the nature, current progress, and future directions of the Advanced Combustion Engine R&D Sub-Program. The research activities of this Sub-Program are planned in conjunction with the FreedomCAR Partnership and the 21st Century Truck Partnership and are carried out in collaboration with industry, national laboratories, and universities. Because of the importance of clean fuels in achieving low emissions, R&D activities are closely coordinated with the relevant activities of the Fuel Technologies Sub-Program, also within the Office of FreedomCAR and Vehicle Technologies. Research is also being undertaken on hydrogen-fueled internal combustion engines to provide an interim hydrogen-based powertrain technology that promotes the longer-range FreedomCAR Partnership goal of transitioning to a hydrogen-fueled transportation system. Hydrogen engine technologies being developed have the potential to provide diesel-like engine efficiencies with near-zero emissions.

  13. Vehicle Technologies Office: Parasitic Loss Reduction Research...

    Energy Savers [EERE]

    resistance can account for up to a 45% decrease in efficiency for heavy-duty vehicles. ... Vehicle & Systems Simulation and Testing Overview Class 8 Truck Freight Efficiency ...

  14. Emissions from Medium-Duty Conventional and Diesel-Electric Hybrid Vehicles; NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    Ragatz, A.; Duran, A.; Thornton, M.; Walkowicz, K.

    2014-04-02

    This presentation discusses the results of emissions testing for medium-duty conventional and diesel-electric hybrid vehicles. Testing was based on a field evaluation approach that utilized the Fleet DNA drive cycle database and NREL’s Renewable Fuels and Lubricants (ReFUEL) Laboratory chassis dynamometer. Vehicles tested included parcel delivery (Class 6 step vans), beverage delivery (Class 8 tractors), and parcel delivery (Class 7 box trucks) vehicles, all with intended service class medium/heavy heavy-duty diesel (MHDD).
    Results for fuel economy and tailpipe NOx emissions included: diesel hybrid electric vehicles showed an average fuel economy advantage on identified test cycles: Class 6 Step Vans: 26%; Class 7 Box Trucks: 24.7%; Class 8 Tractors: 17.3%. Vehicle miles traveled is an important factor in determining total petroleum and CO2 displacement. Higher NOx emissions were observed over some test cycles: highly drive cycle dependent; engine-out differences may result from different engine operating point; and selective catalyst reduction temperature may play a role, but does not explain the whole story.

  15. Non-Cost Barriers to Consumer Adoption of New Light-Duty Vehicle Technologies

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

    LIGHT-DUTY VEHICLES Non-Cost Barriers to Consumer Adoption of New Light-Duty Vehicle Technologies TRANSPORTATION ENERGY FUTURES SERIES: Non-Cost Barriers to Consumer Adoption of New Light-Duty Vehicle Technologies A Study Sponsored by U.S. Department of Energy Office of Energy Efficiency and Renewable Energy March 2013 Prepared by ARGONNE NATIONAL LABORATORY Argonne, Illinois 60439 managed by U Chicago Argonne, LLC for the U.S. DEPARTMENT OF ENERGY under contract DE-AC02-06CH11357 This report

  16. Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle

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

    Applications | Department of Energy 2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon ace047_maranville_2012_o.pdf More Documents & Publications Thermoelectric HVAC for Light-Duty Vehicle Applications Improving efficiency of a vehicle HVAC system with comfort modeling, zonal design, and thermoelectric devices

  17. Vehicle Emissions Review- 2011

    Broader source: Energy.gov [DOE]

    Reviews regulatory requirements and general technology approaches for heavy- and light-duty vehicle emissions control - filter technology, new catalysts, NOx control, diesel oxidation catalysts, gasoline particulate filters

  18. Fleet Evaluation and Factory Installation of Aerodynamic Heavy Duty Truck Trailers

    SciTech Connect (OSTI)

    Beck, Jason; Salari, Kambiz; Ortega, Jason; Brown, Andrea

    2013-09-30

    The purpose of DE-EE0001552 was to develop and deploy a combination of trailer aerodynamic devices and low rolling resistance tires that reduce fuel consumption of a class 8 heavy duty tractor-trailer combination vehicle by 15%. There were 3 phases of the project: Phase 1 – Perform SAE Typed 2 track tests with multiple device combinations. Phase 2 – Conduct a fleet evaluation with selected device combination. Phase 3 – Develop the devices required to manufacture the aerodynamic trailer. All 3 phases have been completed. There is an abundance of available trailer devices on the market, and fleets and owner operators have awareness of them and are purchasing them. The products developed in conjunction with this project are at least in their second round of refinement. The fleet test undertaken showed an improvement of 5.5 – 7.8% fuel economy with the devices (This does not include tire contribution).

  19. Vehicle Technologies Office Merit Review 2015: Light-Duty Diesel Combustion

    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 light-duty...

  20. Vehicle Technologies Office Merit Review 2015: Ultra Efficient Light Duty Powertrain with Gasoline Low Temperature Combustion

    Broader source: Energy.gov [DOE]

    Presentation given by Delphi Powertrain at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about ultra efficient light duty...

  1. Fuel Economy of the Light-Duty Vehicle Fleet (released in AEO2005)

    Reports and Publications (EIA)

    2005-01-01

    The U.S. fleet of light-duty vehicles consists of cars and light trucks, including minivans, sport utility vehicles (SUVs) and trucks with gross vehicle weight less than 8,500 pounds. The fuel economy of light-duty vehicles is regulated by the (Corporate Average Fuel Economy) CAFE standards set by the National Highway Traffic Safety Administration. Currently, the CAFE standard is 27.5 miles per gallon (mpg) for cars and 20.7 mpg for light trucks. The most recent increase in the CAFE standard for cars was in 1990, and the most recent increase in the CAFE standard for light trucks was in 1996.

  2. California Greenhouse Gas Emissions Standards for Light-Duty Vehicles (Update) (released in AEO2006)

    Reports and Publications (EIA)

    2006-01-01

    The state of California was given authority under the Clean Air Act Amendments of 1990 (CAAA90) to set emissions standards for light-duty vehicles that exceed federal standards. In addition, other states that do not comply with the National Ambient Air Quality Standards (NAAQS) set by the Environmental Protection Agency under CAAA90 were given the option to adopt Californias light-duty vehicle emissions standards in order to achieve air quality compliance. CAAA90 specifically identifies hydrocarbon, carbon monoxide, and NOx as vehicle-related air pollutants that can be regulated. California has led the nation in developing stricter vehicle emissions standards, and other states have adopted the California standards.

  3. Impact of Light-Duty Vehicle Emissions on 21st Century Carbon Dioxide Concentrations

    SciTech Connect (OSTI)

    Smith, Steven J.; Kyle, G. Page

    2007-08-04

    The impact of light-duty passenger vehicle emissions on global carbon dioxide concentrations was estimated using the MAGICC reduced-form climate model combined with the PNNL contribution to the CCSP scenarios product. Our central estimate is that tailpipe light duty vehicle emissions of carbon-dioxide over the 21st century will increase global carbon dioxide concentrations by slightly over 12 ppmv by 2100.

  4. Heavy Vehicle Systems Optimization Peer Review | Department of Energy

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

    Heavy Vehicle Systems Optimization Peer Review Heavy Vehicle Systems Optimization Peer Review This report is a summary and analysis of comments from the Review Panel at the FY 2006 DOE Heavy Vehicle Systems Optimization Merit Review and Peer Evaluation, held April 18-20, 2006. PDF icon Merit Review and Peer Evaluation More Documents & Publications Advanced Combustion Engine R&D and Fuels Technology Merit Review 2013 Annual Merit Review Results Report 2013 Annual Merit Review Results

  5. Light-Duty Diesel Vehicles: Market Issues and Potential Energy and Emissions Impacts

    Reports and Publications (EIA)

    2009-01-01

    This report responds to a request from Senator Jeff Sessions for an analysis of the environmental and energy efficiency attributes of light-duty diesel vehicles. Specifically, the inquiry asked for a comparison of the characteristics of diesel-fueled vehicles with those of similar gasoline-fueled, E85-fueled, and hybrid vehicles, as well as a discussion of any technical, economic, regulatory, or other obstacles to increasing the use of diesel-fueled vehicles in the United States.

  6. Vehicle Technologies Office Merit Review 2015: Cummins-ORNL\\FEERC Emissions CRADA: NOx Control & Measurement Technology for Heavy-Duty Diesel Engines, Self-Diagnosing SmartCatalyst Systems

    Broader source: Energy.gov [DOE]

    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 NOx control ...

  7. Off-Highway Heavy Vehicle Diesel Efficiency Improvement and Emissions...

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

    Off-Highway Heavy Vehicle Diesel Efficiency Improvement and Emissions Reduction 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon...

  8. Technologies for a Sustainable Heavy-Duty On-Road Fleet | Department...

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

    Only selected energy pathways for the heavy-duty on-road fleet are consistent with the ... More Documents & Publications 21st Century Truck Partnership Roadmap Roadmap and Technical ...

  9. Heavy-Duty Engine Technology for High Thermal Efficiency at EPA...

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

    Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. PDF icon 2006deeraneja.pdf More Documents & Publications NAFTA Heavy Duty Engine ...

  10. 2007-2009 USA Emission Solutions for Heavy-Duty Diesel Engines...

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

    EGR-SCR-DPF and Advanced Fuel Formulations - A Progress Report State-of-the-Art and Emergin Truck Engine Technologies Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines

  11. A European Perspective of EURO 5/U.S. 07 Heavy-Duty Engine Technologie...

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

    Towards Meeting Euro 4 Emission Standards in 2005 State-of-the-Art and Emergin Truck Engine Technologies SCR Potential and Issues for Heavy-Duty Applications in the United States

  12. Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma...

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

    NOx Emissions Control: Reformer-Assisted vs. Plasma-Facilitated Lean NOx Catalysis Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma-Facilitated Lean NOx Catalysis ...

  13. Lowest Engine-Out Emissions as the Key to the Future of the Heavy-Duty

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

    Diesel Engine: New Development Rersults | Department of Energy 4 Diesel Engine Emissions Reduction (DEER) Conference Presentation: AVT LIST Gmbh, Austria PDF icon 2004_deer_moser.pdf More Documents & Publications Variable Charge Motion for 2007-2010 Heavy Duty Diesel Engines Injection System and Engine Strategies for Advanced Emission Standards A European Perspective of EURO 5/U.S. 07 Heavy-Duty Engine Technologies and Their Related Consequences

  14. SCRT Technology for Retrofit of Heavy-Duty Diesel Applications | Department

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

    of Energy 05 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_conway.pdf More Documents & Publications The Development and On-Road Performance and Durability of the Four-Way Emission Control SCRTTM System Application Experience with a Combined SCR and DPF Technology for Heavy Duty Diesel Retrofit Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM and NOX Control

  15. A European Perspective of EURO 5/U.S. 07 Heavy-Duty Engine Technologies and

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

    Their Related Consequences | Department of Energy 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Volvo Powertrain PDF icon 2004_deer_fayolle.pdf More Documents & Publications SCR Systems for Heavy Duty Trucks: Progress Towards Meeting Euro 4 Emission Standards in 2005 State-of-the-Art and Emergin Truck Engine Technologies SCR Potential and Issues for Heavy-Duty Applications in the United States

  16. Effects of Catalysts on Emissions from Heavy-Duty Diesel Retrofits for PM

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

    and NOX Control | Department of Energy The more heavily catalyzed and the hotter the exhaust temperature, the more strongly the aftertreatment will oxidize the exhaust. PDF icon deer09_hu.pdf More Documents & Publications SCRT Technology for Retrofit of Heavy-Duty Diesel Applications ARB's Study of Emissions from Diesel and CNG Heavy-duty Transit Buses Diesel Health Impacts & Recent Comparisons to Other Fuels

  17. Vehicle Technologies Office Issues Notice of Intent for Multi...

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

    fuel and advanced technology vehicles, and supporting infrastructure ... Office Issues Notice of Intent for Medium and Heavy-Duty Vehicle Demonstration Funding ...

  18. Vehicle Technologies Office Issues Notice of Intent for Program...

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

    for Next-Generation Lightweight Vehicles 5) Advances for the Production of ... Office Issues Notice of Intent for Medium and Heavy-Duty Vehicle Demonstration Funding ...

  19. FY2015 Vehicle Systems Annual Progress Report (Technical Report...

    Office of Scientific and Technical Information (OSTI)

    to advancing light-, medium-, and heavy-duty vehicle systems to help maximize the number of electric miles driven and increase the energy efficiency of transportation vehicles. ...

  20. Diesel Exhaust Emissions Control for Light-Duty Vehicles

    SciTech Connect (OSTI)

    Mital, R.; Li, J.; Huang, S. C.; Stroia, B. J.; Yu, R. C.; Anderson, J.A.; Howden, Kenneth C.

    2003-03-01

    The objective of this paper is to present the results of diesel exhaust aftertreatment testing and analysis done under the FreedomCAR program. Nitrogen Oxides (NOx) adsorber technology was selected based on a previous investigation of various NOx aftertreatment technologies including non-thermal plasma, NOx adsorber and active lean NOx. Particulate Matter (PM) emissions were addressed by developing a catalyzed particulate filter. After various iterations of the catalyst formulation, the aftertreatment components were integrated and optimized for a light duty vehicle application. This compact exhaust aftertreatment system is dual leg and consists of a sulfur trap, NOx adsorbers, and catalyzed particulate filters (CPF). During regeneration, supplementary ARCO ECD low-sulfur diesel fuel is injected upstream of the adsorber and CPF in the exhaust. Steady state and transient emission test results with and without the exhaust aftertreatment system (EAS) are presented. Results of soot filter regeneration by injecting low-sulfur diesel fuel and slip of unregulated emissions, such as NH3, are discussed. Effects of adsorber size and bypass strategy on NOx conversion efficiency and fuel economy penalty are also presented in this paper. The results indicate that if the supplementary fuel injection is optimized, NH3 slip is negligible. During the FTP cycle, injection of low sulfur diesel fuel can create temperature exotherms high enough to regenerate a loaded CPF. With the optimized NOx adsorber regeneration strategies the fuel injection penalty can be reduced by 40 to 50%. Results for various other issues like low temperature light off, reductant optimization, exhaust sulfur management, system integration and design trade-off, are also presented and discussed in this paper. (SAE Paper SAE-2003-01-0041 © 2003 SAE International. This paper is published on this website with permission from SAE International. As a user of this website, you are permitted to view this paper on-line, download this pdf file and print one copy of this paper at no cost for your use only. The downloaded pdf file and printout of this SAE paper may not be copied, distributed or forwarded to others or for the use of others.)

  1. Vehicle Technologies Office: Advanced Vehicle Testing Activity...

    Office of Environmental Management (EM)

    (all-electric, compressed natural gas, diesel, hybrid-electric, neighborhood-electric, plug-in hybrid electric, and stop-start vehicles) as well as medium- and heavy-duty vehicles. ...

  2. Vehicle Technologies Office: AVTA - Plug-in Electric Vehicle...

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

    evaluating the electrification of heavy-duty vehicles and the accompanying infrastructure with Smith Electric, Navistar, Cascade Sierra on truck stop electrification, and the South ...

  3. Thermoelectric HVAC for Light-Duty Vehicle Applications

    Broader source: Energy.gov [DOE]

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

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

    Broader source: Energy.gov [DOE]

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

  5. High Fuel Economy Heavy-Duty Truck Engine

    Broader source: Energy.gov [DOE]

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

  6. Heavy Duty Powertrain System Optimization and Emissions Test Procedure Development

    Broader source: Energy.gov [DOE]

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

  7. Heavy-Duty Natural Gas Drayage Truck Replacement Program

    Broader source: Energy.gov [DOE]

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

  8. Heavy Duty Roots Expander for Waste Heat Energy Recovery

    Broader source: Energy.gov [DOE]

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

  9. Multiyear Program Plan: Reducing Friction and Wear in Heavy Vehicles

    SciTech Connect (OSTI)

    R.R. Fessler; G.R. Fenske

    1999-12-13

    As described in its multiyear program plan for 1998-2000, the Office of Heavy Vehicle Technologies (OHVT) envisions the development of a fuel-flexible, energy-efficient, near-zero-emissions, heavy-duty U.S. diesel engine technology devolving into all truck classes as a real and viable strategy for reducing energy requirements for commercial transport services and the rapidly growing multipurpose vehicle market (pickups, vans, and sport utility vehicles). Implementation of the OHVT program plan will have significant national benefits in energy savings, cleaner air, more jobs, and increased gross domestic product (GDP). Successful implementation will reduce the petroleum consumption of Class 1-8 trucks by 1.4 million barrels of oil per day by 2020 and over 1.8 million by 2030, amounting to a reduction in highway petroleum consumption of 13.2% and 18.6%, respectively. All types of regulated emissions will be reduced, that is, 20% drop in PM10 emissions (41,000 metric tons per year) by 203 0, 17% reduction in CO2 greenhouse gases (205 million metric tons per year), 7% reduction in NOx, 20% reduction in NMHC, and 30% reduction in CO. An increase of 15,000 jobs by 2020 is expected, as is an increase of $24 billion in GDP. The strategy of OHVT is to focus primarily on the diesel engine since it has numerous advantages. It has the highest efficiency of any engine today, 45% versus 30% for production gasoline engines; and it can be made more efficient at least to 55% and possibly up to 63%. It is the engine of choice for heavy vehicles (trucks), because it offers power, efficiency, durability, and reliability and is used extensively in rail, marine, and off-road applications. Its emission can be ultra-low to near zero, and the production infrastructure is already in place. The primary goals of OHVT are as follows: (1) Develop by 2002 the diesel-engine enabling technologies to support large-scale industry dieselization of light trucks, achieving a 35% fuel efficiency improvement over equivalent gasoline-fueled trucks. (2) Develop by 2004 the enabling technology for a Class 7-8 truck with a fuel efficiency of 10 mpg (at 65 mph) that will meet prevailing emission standards, using either diesel or a liquid alternative fuel. (3) Develop by 2006 diesel engines with fuel flexibility and a thermal efficiency of 55% with liquid alternative fuels, and a thermal efficiency of 55% with dedicated gaseous fuels. (4) Develop a methodology for analyzing and evaluating the operation of a heavy vehicle as an integrated system, considering such factors as engine efficiency; emissions; rolling resistance; aerodynamic drag; friction, wear, and lubrication effects; auxiliary power units; material substitutions for reducing weight; and other sources of parasitic energy losses. Overarching these considerations is the need to preserve system functionality, cost, competitiveness, reliability, durability, and safety.

  10. Vehicle Technologies Office AVTA: Light Duty Alternative Fuel...

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

    The following table has downloadable performance, reliability, and driver behavior data for selected models of all-electric vehicles (electric cars or AEVs), compressed natural gas ...

  11. Thermoelectric HVAC for Light-Duty Vehicle Applications

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  12. Light-Duty Lean GDI Vehicle Technology Benchmark

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  13. Light Duty Plug-in Hybrid Vehicle Systems Analysis

    Broader source: Energy.gov [DOE]

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

  14. Light Duty Fuel Cell Electric Vehicle Hydrogen Fueling Protocol...

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

    More Documents & Publications Introduction to SAE Hydrogen Fueling Standardization Developing SAE Safety Standards for Hydrogen and Fuel Cell Vehicles (FCVs) International Hydrogen ...

  15. DOE Light Duty Vehicle Workshop | Department of Energy

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

    Wang, Center for Transportation Research, Argonne National Laboratory An Energy Evolution: Alternative Fueled Vehicle Comparisons (PDF 2.3 MB), Patrick Serfass, National ...

  16. Heavy-Duty Natural Gas Drayage Truck Replacement Program

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  17. Heavy-Duty Natural Gas Drayage Truck Replacement Program | Department...

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

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting PDF icon arravt045tiwhite2012o

  18. Emissions from the European Light Duty Diesel Vehicle During DPF

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

    Regeneration Events | Department of Energy Repeated partial regenerations may cause changes in the mechanical and chemical properties of the PM in the DPF. PDF icon deer09_dwyer.pdf More Documents & Publications A Study of Emissions from a Light Duty Diesel Engine with the European Particulate Measurement Programme Measurement of diesel solid nanoparticle emissions using a catalytic stripper for comparison with Europe's PMP protocol Emission Performance of Modern Diesel Engines Fueled

  19. Heavy-Duty HCCI Development Activities | Department of Energy

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

    and Posters PDF icon 2005deerduffy.pdf More Documents & Publications Heavy-Truck Clean Diesel (HTCD) Program Diesel HCCI Results at Caterpillar Diesel HCCI Results at ...

  20. Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion

    Broader source: Energy.gov [DOE]

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

  1. Heavy vehicle systems optimization merit review and peer evaluation

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    This report is a summary and analysis of comments from the Review Panel at the FY 2006 DOE Heavy Vehicle Systems Optimization Merit Review and Peer Evaluation, held April 18-20, 2006.

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

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

    VEHICLES TECHNOLOGIES OFFICE WORKSHOP REPORT: Light-Duty Vehicles Technical Requirements and Gaps for Lightweight and Propulsion Materials February 2013 FINAL REPORT This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any

  3. TEST: DOE Hydrogen Storage Technical Performance Targets for Light-Duty Vehicles

    Broader source: Energy.gov [DOE]

    This table summarizes technical performance targets for hydrogen storage systems onboard light-duty vehicles. These targets were established through the U.S. DRIVE Partnership, a partnership between the U.S. Department of Energy (DOE), the U.S. Council for Automotive Research (USCAR), energy companies, and utility companies and organizations.

  4. Heavy-Duty Low Temperature Combustion Development Activities at Caterpillar

    Broader source: Energy.gov [DOE]

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

  5. Model-Based Analysis of Electric Drive Options for Medium-Duty Parcel Delivery Vehicles: Preprint

    SciTech Connect (OSTI)

    Barnitt, R. A.; Brooker, A. D.; Ramroth, L.

    2010-12-01

    Medium-duty vehicles are used in a broad array of fleet applications, including parcel delivery. These vehicles are excellent candidates for electric drive applications due to their transient-intensive duty cycles, operation in densely populated areas, and relatively high fuel consumption and emissions. The National Renewable Energy Laboratory (NREL) conducted a robust assessment of parcel delivery routes and completed a model-based techno-economic analysis of hybrid electric vehicle (HEV) and plug-in hybrid electric vehicle configurations. First, NREL characterized parcel delivery vehicle usage patterns, most notably daily distance driven and drive cycle intensity. Second, drive-cycle analysis results framed the selection of drive cycles used to test a parcel delivery HEV on a chassis dynamometer. Next, measured fuel consumption results were used to validate simulated fuel consumption values derived from a dynamic model of the parcel delivery vehicle. Finally, NREL swept a matrix of 120 component size, usage, and cost combinations to assess impacts on fuel consumption and vehicle cost. The results illustrated the dependency of component sizing on drive-cycle intensity and daily distance driven and may allow parcel delivery fleets to match the most appropriate electric drive vehicle to their fleet usage profile.

  6. Efficiency Improvement Opportunities for Light-Duty Natural-Gas-Fueled Vehicles

    SciTech Connect (OSTI)

    Staunton, R.H.; Thomas, J.F.

    1998-12-01

    The purpose of this report is to evaluate and make recommendations concerning technologies that promise to improve the efilciency of compressed natural gas (CNG) light-duty vehicles. Technical targets for CNG automotive technology given in the March 1998 OffIce of Advanced Automotive Technologies research and development plan were used as guidance for this effort. The technical target that necessitates this current study is to validate technologies that enable CNG light vehicles to have at least 10% greater - fuel economy (on a miles per gallon equivalent basis) than equivalent gasoline vehicles by 2006. Other tar- gets important to natural gas (NG) automotive technology and this study are to: (1) increase CNG vehicle range to 380 miles, (2) reduce the incremental vehicle cost (CNG vs gasoline) to $1500, and (3) meet the California ultra low-emission vehicle (ULEV) and Federal Tier 2 emission standards expected to be in effect in 2004.

  7. Roadmapping Engine Technology for Post-2020 Heavy Duty Vehicles...

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

    Discusses Detroit Diesel collaborative multi-year technology program which includes systematic experimental and analytical assessment of enabling technologies for post-2020 NAFTA ...

  8. Roadmapping Engine Technology for Post-2020 Heavy Duty Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE)

    Discusses Detroit Diesel collaborative multi-year technology program which includes systematic experimental and analytical assessment of enabling technologies for post-2020 NAFTA line haul trucks

  9. Lightweight Composite Materials for Heavy Duty Vehicles (Technical...

    Office of Scientific and Technical Information (OSTI)

    to enhance their durability while reducing their Life-Cycle-Costs (LCC). * Smooth migration of the experience and findings accumulated so far at WVU in the areas of designing ...

  10. Clean Cities Strategic Planning White Paper: Light Duty Vehicle Fuel Economy

    SciTech Connect (OSTI)

    Saulsbury, Bo; Hopson, Dr Janet L; Greene, David; Gibson, Robert

    2015-04-01

    Increasing the energy efficiency of motor vehicles is critical to achieving national energy goals of reduced petroleum dependence, protecting the global climate, and promoting continued economic prosperity. Even with fuel economy and greenhouse gas emissions standards and various economic incentives for clean and efficient vehicles, providing reliable and accurate fuel economy information to the public is important to achieving these goals. This white paper reviews the current status of light-duty vehicle fuel economy in the United States and the role of the Department of Energy (DOE) Clean Cities Program in disseminating fuel economy information to the public.

  11. NOx Adsorbers for Heavy Duty Truck Engines-Testing and Simulation

    SciTech Connect (OSTI)

    Hakim, N; Hoelzer, J.; Liu, Y.

    2002-08-25

    This feasibility study of NOx adsorbers in heavy-duty diesel engines examined three configurations (dual-leg, single-leg and single-leg-bypass) in an integrated experimental setup, composed of a Detroit Diesel Class-8 truck engine, a catalyzed diesel particulate filter and the NOx absorber system. The setup also employed a reductant injection concept, sensors and advanced control strategies.

  12. High-Load Partially Premixed Combustion in a Heavy-Duty Diesel Engine |

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

    Department of Energy 5 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_johansson.pdf More Documents & Publications Experiments and Modeling of Two-Stage Combustion in Low-Emissions Diesel Engines High-Efficiency, Ultra-Low Emission Combustion in a Heavy-Duty Engine via Fuel Reactivity Control Path to High Efficiency Gasoline Engine

  13. Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control

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

    | Department of Energy PDF icon 2002_deer_aardahl.pdf More Documents & Publications Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma-Facilitated Lean NOx Catalysis Selective reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic studies

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

    SciTech Connect (OSTI)

    Johnson, D.R.

    1999-01-01

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

  15. Heavy and Overweight Vehicle Defects Interim Report

    SciTech Connect (OSTI)

    Siekmann, Adam; Capps, Gary J

    2012-12-01

    The Federal Highway Administration (FHWA), along with the Federal Motor Carrier Safety Administration (FMCSA), has an interest in overweight commercial motor vehicles, how they affect infrastructure, and their impact on safety on the nation s highways. To assist both FHWA and FMCSA in obtaining more information related to this interest, data was collected and analyzed from two separate sources. A large scale nationwide data collection effort was facilitated by the Commercial Vehicle Safety Alliance as part of a special study on overweight vehicles and an additional, smaller set, of data was collected from the state of Tennessee which included a much more detailed set of data. Over a six-month period, 1,873 Level I inspections were performed in 18 different states that volunteered to be a part of this study. Of the 1,873 inspections, a vehicle out-of-service (OOS) violation was found on 44.79% of the vehicles, a rate significantly higher than the national OOS rate of 27.23%. The main cause of a vehicle being placed OOS was brake-related defects, with approximately 30% of all vehicles having an OOS brake violation. Only about 4% of vehicles had an OOS tire violation, and even fewer had suspension and wheel violations. Vehicle weight violations were most common on an axle group as opposed to a gross vehicle weight violation. About two thirds of the vehicles cited with a weight violation were overweight on an axle group with an average amount of weight over the legal limit of about 2,000 lbs. Data collection is scheduled to continue through January 2014, with more potentially more states volunteering to collect data. More detailed data collections similar to the Tennessee data collection will also be performed in multiple states.

  16. A Study of Emissions from a Light Duty Diesel Engine with the...

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

    a catalytic stripper for comparison with Europe's PMP protocol Evaluation of the European PMP Methodologies Using Chassis Dynamometer and On-road Testing of Heavy-duty Vehicles

  17. NOx Adsorbers for Heavy Duty Truck Engines - Testing and Simulation |

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

    Department of Energy This report provides the results of an analytical and experimental sA PDF icon 2002_deer_hakim.pdf More Documents & Publications Use of a Diesel Fuel Processor for Rapid and Efficient Regeneration of Single Leg NOx Adsorber Systems Design, Modeling, and Validation of a Flame Reformer for LNT External Bypass Regeneration Cleaner Vehicles, Cleaner Fuel & Cleaner Air

  18. Advanced Technologies for Light-Duty Vehicles (released in AEO2006)

    Reports and Publications (EIA)

    2006-01-01

    A fundamental concern in projecting the future attributes of light-duty vehicles-passenger cars, sport utility vehicles, pickup trucks, and minivans-is how to represent technological change and the market forces that drive it. There is always considerable uncertainty about the evolution of existing technologies, what new technologies might emerge, and how consumer preferences might influence the direction of change. Most of the new and emerging technologies expected to affect the performance and fuel use of light-duty vehicles over the next 25 years are represented in the National Energy Modeling System (NEMS); however, the potential emergence of new, unforeseen technologies makes it impossible to address all the technology options that could come into play. The previous section of Issues in Focus discussed several potential technologies that currently are not represented in NEMS. This section discusses some of the key technologies represented in NEMS that are expected to be implemented in light-duty vehicles over the next 25 years.

  19. Vehicle Technologies Office Merit Review 2015: Modeling for Light and Heavy Vehicle Market Analysis

    Broader source: Energy.gov [DOE]

    Presentation given by Energetics at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about modeling for light and heavy...

  20. Light-duty vehicle mpg and market shares report, model year 1988

    SciTech Connect (OSTI)

    Hu, P.S.; Williams, L.S.; Beal, D.J.

    1989-04-01

    This issue of Light-Duty Vehicle MPG and Market Shares Report: Model Year 1988 reports the estimated sales-weighted fuel economies, sales, market shares, and other vehicle characteristics of automobiles and light trucks. The estimates are made on a make and model basis, from model year 1976 to model year 1988. Vehicle sales data are used as weighting factors in the sales-weighted estimation procedure. Thus, the estimates represent averages of the overall new vehicle fleet, reflecting the composition of the fleet. Highlights are provided on the trends in the vehicle characteristics from one model year to the next. Analyses are also made on the fuel economy changes to determine the factors which caused the changes. The sales-weighted fuel economy for the new car fleet in model year 1988 showed an improvement of 0.1 mpg from model year 1987, while light trucks showed a 0.2 mpg loss. The 0.2 mpg loss by the light trucks can be attributed to the fact that every light truck size class experienced either losses or no change in their fuel economies from the previous model year, except for the large van size class. Overall, the sales-weighted fuel economy of the entire light-duty vehicle fleet (automobiles and light trucks combined) has remained relatively stable since model year 1986. Domestic light-duty vehicles began to gain popularity over their import counterparts; and light trucks increased their market shares relative to automobiles. Domestic cars regained 0.3% of the automobile market, reversing the previous trend. Similar to the automobile market, domestic light trucks continued to gain popularity over their import counterparts, partly due to the increasing popularity of domestic small vans. 3 refs., 35 figs., 48 tabs.

  1. Alternative fuel vehicles: The emerging emissions picture. Interim results, Summer 1996

    SciTech Connect (OSTI)

    1996-10-01

    In this pamphlet, program goal, description, vehicles/fuels tested, and selected emissions results are given for light-duty and heavy-duty vehicles. Other NREL R&D programs and publications are mentioned briefly.

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

    SciTech Connect (OSTI)

    Johnson, D.R.

    1997-04-01

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

  3. Off-Highway Heavy Vehicle Diesel Efficiency Improvement and Emissions

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

    Reduction | Department of Energy 05 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters PDF icon 2005_deer_rumsey.pdf More Documents & Publications High Engine Efficiency at 2010 Emissions Integrated Engine and Aftertreatment Technology Roadmap for EPA 2010 Heavy-duty Emissions Regulations Optimization of Engine-out Emissions from a Diesel Engine to Meet Tier 2 Bin 5 Emission Limits

  4. Fuel comsumption of heavy-duty trucks : potential effect of future technologies for improving energy efficiency and emission.

    SciTech Connect (OSTI)

    Saricks, C. L.; Vyas, A. D.; Stodolsky, F.; Maples, J. D.; Energy Systems; USDOE

    2003-01-01

    The results of an analysis of heavy-duty truck (Classes 2b through 8) technologies conducted to support the Energy Information Administration's long-term projections for energy use are summarized. Several technology options that have the potential to improve the fuel economy and emissions characteristics of heavy-duty trucks are included in the analysis. The technologies are grouped as those that enhance fuel economy and those that improve emissions. Each technology's potential impact on the fuel economy of heavy-duty trucks is estimated. A rough cost projection is also presented. The extent of technology penetration is estimated on the basis of truck data analyses and technical judgment.

  5. California Greenhouse Gas Emissions Standards for Light-Duty Vehicles (released in AEO2005)

    Reports and Publications (EIA)

    2005-01-01

    In July 2002, California Assembly Bill 1493 (A.B. 1493) was signed into law. The law requires that the California Air Resources Board (CARB) develop and adopt, by January 1, 2005, greenhouse gas emission standards for light-duty vehicles that provide the maximum feasible reduction in emissions. In estimating the feasibility of the standard, CARB is required to consider cost-effectiveness, technological capability, economic impacts, and flexibility for manufacturers in meeting the standard.

  6. Heavy Vehicle Systems Optimization Merit Review and Peer Evaluation

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

    Heavy veHicle SyStemS OptimizatiOn merit review and peer evaluatiOn Department of Energy Washington, DC 20585 Dear Colleague: This document summarizes the comments provided by the Review Panel for the FY 2006 Department of Energy (DOE) Heavy Vehicle Systems Optimization Peer Review Meeting, held April 18-20, 2006 at Argonne National Laboratory in suburban Chicago, Illinois. The goal of this document is to provide the reader with a summary of the comments and scores from expert reviewers from

  7. Heavy Vehicle Propulsion Materials Program: Progress and Highlights

    SciTech Connect (OSTI)

    D. Ray Johnson; Sidney Diamond

    2000-06-19

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

  8. Vehicle Technologies Office Merit Review 2015: Plug-In Hybrid Medium-Duty Truck Demonstration and Evaluation Program

    Broader source: Energy.gov [DOE]

    Presentation given by SCAQMD at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about plug-in hybrid medium-duty truck...

  9. High temperature solid lubricant materials for heavy duty and advanced heat engines

    SciTech Connect (OSTI)

    DellaCorte, C.; Wood, J.C.

    1994-10-01

    Advanced engine designs incorporate higher mechanical and thermal loading to achieve efficiency improvements. This approach often leads to higher operating temperatures of critical sliding elements (e.g. piston ring/cylinder wall contacts and valve guides) which compromise the use of conventional and even advanced synthetic liquid lubricants. For these applications solid lubricants must be considered. Several novel solid lubricant composites and coatings designated PS/PM200 have been employed to dry and marginally oil lubricated contacts in advanced heat engines. These applications include cylinder kits of heavy duty diesels, and high temperature sterling engines, sidewall seals of rotary engines and various exhaust valve and exhaust component applications. The following paper describes the tribological and thermophysical properties of these tribomaterials and reviews the results of applying them to engine applications. Other potential tribological materials and applications are also discussed with particular emphasis to heavy duty and advanced heat engines.

  10. Heavy-Duty NOx Emissions Control: Reformer-Assisted vs. Plasma-Facilitated

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

    Lean NOx Catalysis | Department of Energy 03 DEER Conference Presentation: Pacific Northwest National Laboratory PDF icon 2003_deer_aardahl.pdf More Documents & Publications Plasma-Activated Lean NOx Catalysis for Heavy-Duty Diesel Emissions Control Selective reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic studies Lean-NOx Catalyst Development for Diesel Engine Applications

  11. Heavy-duty H2-Diesel Dual Fuel Engines | Department of Energy

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

    Brake thermal efficiency can be improved with the addition of a large amount of hydrogen at medium to high loads PDF icon deer09_li.pdf More Documents & Publications Evaluation of NTE Windows and a Work-Based Method to Determine In-Use Emissions of a Heavy-Duty Diesel Engine Status of APBF-DEC NOx Adsorber/DPF Projects Future Diesel Engine Thermal Efficiency Improvement andn Emissions Control Technology

  12. Light-duty vehicle MPG (miles per gallon) and market shares report, Model year 1989

    SciTech Connect (OSTI)

    Williams, L.S. ); Hu, P.S. )

    1990-04-01

    This issue of Light-Duty Vehicle MPG and Market Shares Report: Model Year 1989 reports the estimated sales-weighted fuel economies, sales, market shares, and other vehicle characteristics of automobiles and light trucks. The estimates are made on a make and model basis (e.g., Chevrolet is a make and Corsica is a model), from model year 1976 to model year 1989. Vehicle sales data are used as weighting factors in the sales-weighted estimation procedure. Thus, the estimates represent averages of the overall new vehicle fleet, reflecting the composition of the fleet. Highlights are provided on the trends in the vehicle characteristics from one model year to the next. Analyses are also made on fuel economy changes to determine what caused the changes. Both new automobile and new light truck fleets experienced fuel economy losses of 0.5 mpg from the previous model year, dropping to 28.0 mpg for automobiles and 20.2 mpg for light trucks. This is the first observed decline in fuel economy of new automobiles since model year 1983 and the largest decline since model year 1976. The main reason for the fuel economy decline in automobiles was that every automobile size class showed either losses or no change in their fuel economies. The fuel economy decline in light trucks was primarily due to the fact that two popular size classes, large pickup and small utility vehicle, both experienced losses in their fuel economies. Overall, the sales-weighted fuel economy of the entire light-duty vehicle fleet (automobiles and light trucks) dropped to 25.0 mpg, a reduction of 0.5 mpg from model year 1988. 9 refs., 32 figs., 50 tabs.

  13. Retail Infrastructure Costs Comparison for Hydrogen and Electricity for Light-Duty Vehicles: Preprint

    SciTech Connect (OSTI)

    Melaina, M.; Sun, Y.; Bush, B.

    2014-08-01

    Both hydrogen and plug-in electric vehicles offer significant social benefits to enhance energy security and reduce criteria and greenhouse gas emissions from the transportation sector. However, the rollout of electric vehicle supply equipment (EVSE) and hydrogen retail stations (HRS) requires substantial investments with high risks due to many uncertainties. We compare retail infrastructure costs on a common basis - cost per mile, assuming fueling service to 10% of all light-duty vehicles in a typical 1.5 million person city in 2025. Our analysis considers three HRS sizes, four distinct types of EVSE and two distinct EVSE scenarios. EVSE station costs, including equipment and installation, are assumed to be 15% less than today's costs. We find that levelized retail capital costs per mile are essentially indistinguishable given the uncertainty and variability around input assumptions. Total fuel costs per mile for battery electric vehicle (BEV) and plug-in hybrid vehicle (PHEV) are, respectively, 21% lower and 13% lower than that for hydrogen fuel cell electric vehicle (FCEV) under the home-dominant scenario. Including fuel economies and vehicle costs makes FCEVs and BEVs comparable in terms of costs per mile, and PHEVs are about 10% less than FCEVs and BEVs. To account for geographic variability in energy prices and hydrogen delivery costs, we use the Scenario Evaluation, Regionalization and Analysis (SERA) model and confirm the aforementioned estimate of cost per mile, nationally averaged, but see a 15% variability in regional costs of FCEVs and a 5% variability in regional costs for BEVs.

  14. Predicting Light-Duty Vehicle Fuel Economy as a Function of Highway Speed

    SciTech Connect (OSTI)

    Thomas, John F; Hwang, Ho-Ling; West, Brian H; Huff, Shean P

    2013-01-01

    The www.fueleconomy.gov website offers information such as window label fuel economy for city, highway, and combined driving for all U.S.-legal light-duty vehicles from 1984 to the present. The site is jointly maintained by the U.S. Department of Energy and the U.S. Environmental Protection Agency (EPA), and also offers a considerable amount of consumer information and advice pertaining to vehicle fuel economy and energy related issues. Included with advice pertaining to driving styles and habits is information concerning the trend that as highway cruising speed is increased, fuel economy will degrade. An effort was undertaken to quantify this conventional wisdom through analysis of dynamometer testing results for 74 vehicles at steady state speeds from 50 to 80 mph. Using this experimental data, several simple models were developed to predict individual vehicle fuel economy and its rate of change over the 50-80 mph speed range interval. The models presented require a minimal number of vehicle attributes. The simplest model requires only the EPA window label highway mpg value (based on the EPA specified estimation method for 2008 and beyond). The most complex of these simple model uses vehicle coast-down test coefficients (from testing prescribed by SAE Standard J2263) known as the vehicle Target Coefficients, and the raw fuel economy result from the federal highway test. Statistical comparisons of these models and discussions of their expected usefulness and limitations are offered.

  15. Vehicle Technologies Office Merit Review 2015: Analyzing Real-World Light Duty Vehicle Efficiency Benefits

    Broader source: Energy.gov [DOE]

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

  16. Vehicle Aerodynamics

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

    Vehicle Aerodynamics Background Tougher emissions standards, as well as industry demands for more powerful engines and new vehicle equipment, continue to increase the heat rejection requirements of heavy-duty vehicles. However, changes in the physical configuration and weight of these vehicles can affect how they handle wind resistance and energy loss due to aerodynamic drag. Role of High-Performance Computing The field of computational fluid dynamics (CFD) offers researchers the ability to

  17. Characterization of In-Use Medium Duty Electric Vehicle Driving and Charging Behavior: Preprint

    SciTech Connect (OSTI)

    Duran, A.; Ragatz, A.; Prohaska, R.; Kelly, K.; Walkowicz, K.

    2014-11-01

    The U.S. Department of Energy's American Recovery and Reinvestment Act (ARRA) deployment and demonstration projects are helping to commercialize technologies for all-electric vehicles (EVs). Under the ARRA program, data from Smith Electric and Navistar medium duty EVs have been collected, compiled, and analyzed in an effort to quantify the impacts of these new technologies. Over a period of three years, the National Renewable Energy Laboratory (NREL) has compiled data from over 250 Smith Newton EVs for a total of over 100,000 days of in-use operation. Similarly, data have been collected from over 100 Navistar eStar vehicles, with over 15,000 operating days having been analyzed. NREL has analyzed a combined total of over 4 million kilometers of driving and 1 million hours of charging data for commercial operating medium duty EVs. In this paper, the authors present an overview of medium duty EV operating and charging behavior based on in-use data collected from both Smith and Navistar vehicles operating in the United States. Specifically, this paper provides an introduction to the specifications and configurations of the vehicles examined; discusses the approach and methodology of data collection and analysis, and presents detailed results regarding daily driving and charging behavior. In addition, trends observed over the course of multiple years of data collection are examined, and conclusions are drawn about early deployment behavior and ongoing adjustments due to new and improving technology. Results and metrics such as average daily driving distance, route aggressiveness, charging frequency, and liter per kilometer diesel equivalent fuel consumption are documented and discussed.

  18. Vehicle Technologies Office Merit Review 2015: Lean Miller Cycle System Development for Light-Duty Vehicles

    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 lean miller cycle system...

  19. Global warming impact of gasoline and alcohol use in light-duty highway vehicles in Brazil

    SciTech Connect (OSTI)

    Uria, L.A.B.; Schaeffer, R.

    1997-12-31

    This paper examines the direct and indirect global warming impact of gasoline and alcohol use in light-duty highway vehicles in Brazil. In order to do that, it quantifies emissions of CO{sub 2}, CO{sub 2} HC and NO{sub x} in terms of CO{sub 2}-equivalent units for time spans of 20, 100 and 500 years. It shows that the consideration of CO{sub 2} HC and NO{sub x} emissions in addition to CO{sub 2} provides an important contribution for better understanding the total warming impact of transportation fuels in Brazil.

  20. Heavy Duty

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

    - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy Nuclear

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

    SciTech Connect (OSTI)

    Nelson, S.C.

    2002-11-14

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

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

    SciTech Connect (OSTI)

    Johnson, R.D.

    1999-06-01

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

  3. Heavy Vehicle Propulsion Materials: Recent Progress and Future Plans

    SciTech Connect (OSTI)

    D. Ray Johnson; Sidney Diamond

    2001-05-14

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

  4. NREL: Transportation Research - Alternative Fuel Fleet Vehicle Testing

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

    Alternative Fuel Fleet Vehicle Testing Photo of medium- and heavy-duty United Parcel Service vehicles. NREL evaluates the performance of alternative fuels in fleet vehicles in real-world delivery, transit, and freight service. Photo by Dennis Schroeder, NREL In partnership with industry, NREL evaluates the in-use performance of alternative fuels in delivery, transit, and freight vehicles. Although biodiesel is the most commonly used alternative fuel in medium- and heavy-duty diesel vehicles,

  5. Continued Development and Improvement of Pneumatic Heavy Vehicles

    SciTech Connect (OSTI)

    Robert J. Englar

    2005-07-15

    The objective of this applied research effort led by Georgia Tech Research Institute is the application of pneumatic aerodynamic technology previously developed and patented by us to the design of an appropriate Heavy Vehicle (HV) tractor-trailer configuration, and experimental confirmation of this pneumatic configuration's improved aerodynamic characteristics. In Phases I to IV of our previous DOE program (Reference 1), GTRI has developed, patented, wind-tunnel tested and road-tested blown aerodynamic devices for Pneumatic Heavy Vehicles (PHVs) and Pneumatic Sports Utility Vehicles (PSUVs). To further advance these pneumatic technologies towards HV and SUV applications, additional Phase V tasks were included in the first year of a continuing DOE program (Reference 2). Based on the results of the Phase IV full-scale test programs, these Phase V tasks extended the application of pneumatic aerodynamics to include: further economy and performance improvements; increased aerodynamic stability and control; and safety of operation of Pneumatic HVs. Continued development of a Pneumatic SUV was also conducted during the Phase V program. Phase V was completed in July, 2003; its positive results towards development and confirmation of this pneumatic technology are reported in References 3 and 4. The current Phase VI of this program was incrementally funded by DOE in order to continue this technology development towards a second fuel economy test on the Pneumatic Heavy Vehicle. The objectives of this current Phase VI research and development effort (Ref. 5) fall into two categories: (1) develop improved pneumatic aerodynamic technology and configurations on smaller-scale models of the advanced Pneumatic Heavy Vehicle (PHV); and based on these findings, (2) redesign, modify, and re-test the modified full-scale PHV test vehicle. This second objective includes conduct of an on-road preliminary road test of this configuration to prepare it for a second series of SAE Type-U fuel economy evaluations, as described in Ref. 5. Both objectives are based on the pneumatic technology already developed and confirmed for DOE OHVT/OAAT in Phases I-V. This new Phase VI effort was initiated by contract amendment to the Phase V effort using carryover FY02 funds. This were conducted under a new and distinct project number, GTRI Project A-6935, separate from the Phase I-IV program. However, the two programs are closely integrated, and thus Phase VI continues with the previous program and goals.

  6. Feasibility evaluation of fuel cells for selected heavy-duty transportation systems

    SciTech Connect (OSTI)

    Huff, J.R.; Murray, H.S.

    1982-10-01

    A study of the feasibility of using fuel cell power plants for heavy duty transportation applications is performed. It is concluded that it will be feasible to use fuel cell technology projected as being available by 1995 to 2000 for powering 3000-hp freight locomotives and 6000-hp river boats. The fuel cell power plant is proposed as an alternative to the currently used diesel or diesel-electric system. Phosphoric acid and solid polymer electrolyte fuel cells are determined to be the only applicable technologies in the desired time frame. Methanol, chemically reformed to produce hydrogen, is determined to be the most practical fuel for the applications considered. Feasibility is determined on the basis of weight and volume constraints, compatibility with existing propulsion components, and adequate performance relative to operational requirements. Simulation results show that performance goals are met and that overall energy consumption of heavy duty fuel cell power plants is lower than that of diesels for the same operating conditions. Overall energy consumption is substantially improved over diesel operation for locomotives. Operating cost comparisons are made using assumed diesel fuel and methanol costs. Development areas are identified to achieve the desired fuel cell capabilities. The required activities are in the areas of fuel cell electrode performance, catalyst development, fuel processing, controls, power conditioning, and system integration.

  7. Idling Reduction for Personal Vehicles

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

    - Idling Reduction for Personal Vehicles Idling your vehicle-running your engine when you're not driving it-truly gets you nowhere. Idling reduces your vehicle's fuel economy, costs you money, and creates pollution. Idling for more than 10 seconds uses more fuel and produces more emissions that contribute to smog and climate change than stopping and restarting your engine does. Researchers estimate that idling from heavy-duty and light- duty vehicles combined wastes about 6 billion gallons of

  8. Natural Gas as a Fuel Option for Heavy Vehicles

    SciTech Connect (OSTI)

    James E. Wegrzyn; Wai Lin Litzke; Michael Gurevich

    1999-04-26

    The U.S. Department of Energy (DOE), Office of Heavy Vehicle Technologies (OHVT) is promoting the use of natural gas as a fuel option in the transportation energy sector through its natural gas vehicle program [1]. The goal of this program is to eliminate the technical and cost barriers associated with displacing imported petroleum. This is achieved by supporting research and development in technologies that reduce manufacturing costs, reduce emissions, and improve vehicle performance and consumer acceptance for natural gas fueled vehicles. In collaboration with Brookhaven National Laboratory, projects are currently being pursued in (1) liquefied natural gas production from unconventional sources, (2) onboard natural gas storage (adsorbent, compressed, and liquefied), (3) natural gas delivery systems for both onboard the vehicle and the refueling station, and (4) regional and enduse strategies. This paper will provide an overview of these projects highlighting their achievements and current status. In addition, it will discuss how the individual technologies developed are being integrated into an overall program strategic plan.

  9. Vehicle technologies heavy vehicle program : FY 2008 benefits analysis, methodology and results --- final report.

    SciTech Connect (OSTI)

    Singh, M.; Energy Systems; TA Engineering

    2008-02-29

    This report describes the approach to estimating the benefits and analysis results for the Heavy Vehicle Technologies activities of the Vehicle Technologies (VT) Program of EERE. The scope of the effort includes: (1) Characterizing baseline and advanced technology vehicles for Class 3-6 and Class 7 and 8 trucks, (2) Identifying technology goals associated with the DOE EERE programs, (3) Estimating the market potential of technologies that improve fuel efficiency and/or use alternative fuels, and (4) Determining the petroleum and greenhouse gas emissions reductions associated with the advanced technologies. In FY 08 the Heavy Vehicles program continued its involvement with various sources of energy loss as compared to focusing more narrowly on engine efficiency and alternative fuels. These changes are the result of a planning effort that first occurred during FY 04 and was updated in the past year. (Ref. 1) This narrative describes characteristics of the heavy truck market as they relate to the analysis, a description of the analysis methodology (including a discussion of the models used to estimate market potential and benefits), and a presentation of the benefits estimated as a result of the adoption of the advanced technologies. The market penetrations are used as part of the EERE-wide integrated analysis to provide final benefit estimates reported in the FY08 Budget Request. The energy savings models are utilized by the VT program for internal project management purposes.

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

    SciTech Connect (OSTI)

    Johnson, D.R.

    1998-06-01

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

  11. Comparative urban drive cycle simulations of light-duty hybrid vehicles with gasoline or diesel engines and emissions controls

    SciTech Connect (OSTI)

    Gao, Zhiming; Daw, C Stuart; Smith, David E

    2013-01-01

    Electric hybridization is a very effective approach for reducing fuel consumption in light-duty vehicles. Lean combustion engines (including diesels) have also been shown to be significantly more fuel efficient than stoichiometric gasoline engines. Ideally, the combination of these two technologies would result in even more fuel efficient vehicles. However, one major barrier to achieving this goal is the implementation of lean-exhaust aftertreatment that can meet increasingly stringent emissions regulations without heavily penalizing fuel efficiency. We summarize results from comparative simulations of hybrid electric vehicles with either stoichiometric gasoline or diesel engines that include state-of-the-art aftertreatment emissions controls for both stoichiometric and lean exhaust. Fuel consumption and emissions for comparable gasoline and diesel light-duty hybrid electric vehicles were compared over a standard urban drive cycle and potential benefits for utilizing diesel hybrids were identified. Technical barriers and opportunities for improving the efficiency of diesel hybrids were identified.

  12. DOE/BNL Liquid Natural Gas Heavy Vehicle Program

    SciTech Connect (OSTI)

    James E. Wegrzyn; Wai-Lin Litzke; Michael Gurevich

    1998-08-11

    As a means of lowering greenhouse gas emissions, increasing economic growth, and reducing the dependency on imported oil, the Department of Energy and Brookhaven National Laboratory (DOE/ BNL) is promoting the substitution of liquefied natural gas (LNG) in heavy-vehicles that are currently being fueled by diesel. Heavy vehicles are defined as Class 7 and 8 trucks (> 118,000 pounds GVVV), and transit buses that have a fuel usage greater than 10,000 gallons per year and driving range of more than 300 miles. The key in making LNG market-competitive with all types of diesel fuels is in improving energy efficiency and reducing costs of LNG technologies through systems integration. This paper integrates together the three LNG technologies of: (1) production from landfills and remote well sites; (2) cryogenic fuel delivery systems; and (3) state-of-the-art storage tank and refueling facilities, with market end-use strategies. The program's goal is to develop these technologies and strategies under a ''green'' and ''clean'' strategy. This ''green'' approach reduces the net contribution of global warming gases by reducing levels of methane and carbon dioxide released by heavy vehicles usage to below recoverable amounts of natural gas from landfills and other natural resources. Clean technology refers to efficient use of energy with low environmental emissions. The objective of the program is to promote fuel competition by having LNG priced between $0.40 - $0.50 per gallon with a combined production, fuel delivery and engine systems efficiency approaching 45%. This can make LNG a viable alternative to diesel.

  13. Overcoming the Range Limitation of Medium-Duty Battery Electric Vehicles through the use of Hydrogen Fuel-Cells

    SciTech Connect (OSTI)

    Wood, E.; Wang, L.; Gonder, J.; Ulsh, M.

    2013-10-01

    Battery electric vehicles possess great potential for decreasing lifecycle costs in medium-duty applications, a market segment currently dominated by internal combustion technology. Characterized by frequent repetition of similar routes and daily return to a central depot, medium-duty vocations are well positioned to leverage the low operating costs of battery electric vehicles. Unfortunately, the range limitation of commercially available battery electric vehicles acts as a barrier to widespread adoption. This paper describes the National Renewable Energy Laboratory's collaboration with the U.S. Department of Energy and industry partners to analyze the use of small hydrogen fuel-cell stacks to extend the range of battery electric vehicles as a means of improving utility, and presumably, increasing market adoption. This analysis employs real-world vocational data and near-term economic assumptions to (1) identify optimal component configurations for minimizing lifecycle costs, (2) benchmark economic performance relative to both battery electric and conventional powertrains, and (3) understand how the optimal design and its competitiveness change with respect to duty cycle and economic climate. It is found that small fuel-cell power units provide extended range at significantly lower capital and lifecycle costs than additional battery capacity alone. And while fuel-cell range-extended vehicles are not deemed economically competitive with conventional vehicles given present-day economic conditions, this paper identifies potential future scenarios where cost equivalency is achieved.

  14. Vehicle Technologies Office- AVTA: Hybrid-Electric Tractor Vehicles

    Broader source: Energy.gov [DOE]

    The following set of reports describes performance data collected from hybrid-electric heavy-duty tractor vehicles in the Coca-Cola fleet. This research was conducted by the National Renewable Energy Laboratory (NREL).

  15. Vehicle Technologies Office - AVTA: Hybrid-Electric Tractor Vehicles...

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

    The following set of reports (part of the medium and heavy-duty truck data) describes data collected from hybrid-electric tractor vehicles in the Coca-Cola fleet. This research was ...

  16. Chapter 8 - Advancing Clean Transportation and Vehicle Systems and

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

    Technologies | Department of Energy 8 - Advancing Clean Transportation and Vehicle Systems and Technologies Chapter 8 - Advancing Clean Transportation and Vehicle Systems and Technologies Chapter 8 - Advancing Clean Transportation and Vehicle Systems and Technologies Transportation is a complex sector composed of light duty, medium duty, heavy duty, and non-highway vehicles; rail; aircraft; and ships used for personal transport, movement of goods, construction, agriculture, and mining as

  17. Vehicle Technologies Office: 2015 Vehicle Systems Annual Progress Report |

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

    Department of Energy Vehicle Systems Annual Progress Report Vehicle Technologies Office: 2015 Vehicle Systems Annual Progress Report The Vehicle Systems research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research focuses on addressing critical barriers to advancing light-, medium-, and heavy-duty vehicle systems to help maximize the number of electric

  18. Evolution of Westinghouse heavy-duty power generation and industrial combustion turbines

    SciTech Connect (OSTI)

    Scalzo, A.J.; Bannister, R.L.; DeCorso, M.; Howard, G.S.

    1996-04-01

    This paper reviews the evolution of heavy-duty power generation and industrial combustion turbines in the United States from a Westinghouse Electric Corporation perspective. Westinghouse combustion turbine genealogy began in March of 1943 when the first wholly American designed and manufactured jet engine went on test in Philadelphia, and continues today in Orlando, Florida, with the 230 MW, 501G combustion turbine. In this paper, advances in thermodynamics, materials, cooling, and unit size will be described. Many basic design features such as two-bearing rotor, cold-end drive, can-annular internal combustors, CURVIC{sup 2} clutched turbine disks, and tangential exhaust struts have endured successfully for over 40 years. Progress in turbine technology includes the clean coal technology and advanced turbine systems initiatives of the US Department of Energy.

  19. Development of all-ceramic glow plugs for heavy-duty engines: Phase 2

    SciTech Connect (OSTI)

    Johar, S.; Das Gupta, S.

    1997-12-31

    Details the development work performed in phase 2 of a project to develop all-ceramic glow plugs for heavy-duty diesel engines. All-ceramic glow plugs, compared to traditional metallic plugs, offer a number of advantages including high corrosion resistance, operation at higher temperatures allowing for quicker start and improved engine performance, low power use, high dimensional stability, and longer service life. Work in phase 2 focused on increasing the operational voltage ratings of the proof-of-concept plugs developed in phase 1 in order to meet all commercial expectations in terms of performance, reliability, durability, and economic manufacture. The work involved optimization of the material composition to meet design specifications, development of a manufacturing process, fabrication of plugs, and bench and engine tests. Results compare the all-ceramic plugs to conventional plugs.

  20. FUEL CONSUMPTION AND COST SAVINGS OF CLASS 8 HEAVY-DUTY TRUCKS POWERED BY NATURAL GAS

    SciTech Connect (OSTI)

    Gao, Zhiming; LaClair, Tim J; Daw, C Stuart; Smith, David E

    2013-01-01

    We compare the fuel consumption and greenhouse gas emissions of natural gas and diesel heavy-duty (HD) class 8 trucks under consistent simulated drive cycle conditions. Our study included both conventional and hybrid HD trucks operating with either natural gas or diesel engines, and we compare the resulting simulated fuel efficiencies, fuel costs, and payback periods. While trucks powered by natural gas engines have lower fuel economy, their CO2 emissions and costs are lower than comparable diesel trucks. Both diesel and natural gas powered hybrid trucks have significantly improved fuel economy, reasonable cost savings and payback time, and lower CO2 emissions under city driving conditions. However, under freeway-dominant driving conditions, the overall benefits of hybridization are considerably less. Based on payback period alone, non-hybrid natural gas trucks appear to be the most economic option for both urban and freeway driving environments.

  1. Regulated Emissions from Biodiesel Tested in Heavy-Duty Engines Meeting 2004 Emission Standards

    SciTech Connect (OSTI)

    McCormick, R. L.; Tennant, C. J.; Hayes, R. R.; Black, S.; Ireland, J.; McDaniel, T.; Williams, A.; Frailey, M.; Sharp, C. A.

    2005-11-01

    Biodiesel produced from soybean oil, canola oil, yellow grease, and beef tallow was tested in two heavy-duty engines. The biodiesels were tested neat and as 20% by volume blends with a 15 ppm sulfur petroleum-derived diesel fuel. The test engines were the following: 2002 Cummins ISB and 2003 DDC Series 60. Both engines met the 2004 U.S. emission standard of 2.5 g/bhp-h NO{sub x}+HC (3.35 g/kW-h) and utilized exhaust gas recirculation (EGR). All emission tests employed the heavy-duty transient procedure as specified in the U.S. Code of Federal Regulations. Reduction in PM emissions and increase in NO{sub x} emissions were observed for all biodiesels in all engines, confirming observations made in older engines. On average PM was reduced by 25% and NO{sub x} increased by 3% for the two engines tested for a variety of B20 blends. These changes are slightly larger in magnitude, but in the same range as observed in older engines. The cetane improver 2-ethyl hexyl nitrate was shown to have no measurable effect on NO{sub x} emissions from B20 in these engines, in contrast to observations reported for older engines. The effect of intake air humidity on NO{sub x} emissions from the Cummins ISB was quantified. The CFR NO{sub x}/humidity correction factor was shown to be valid for an engine equipped with EGR, operating at 1700 m above sea level, and operating on conventional or biodiesel.

  2. Blog Feed: Vehicles | Department of Energy

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

    Blog Feed: Vehicles Blog Feed: Vehicles RSS March 1, 2016 Our latest infographic explains how heavy-duty trucks are more getting more sustainable thanks to the Energy Department's SuperTruck initiative. | Infographic by <a href="/node/1332956">Carly Wilkins</a>, Energy Department. INFOGRAPHIC: How SuperTruck is Making Heavy Duty Vehicles More Efficient How the Energy Department's SuperTruck initiative is making America's heavy duty trucks more sustainable. December 30, 2015

  3. Feebates and Fuel Economy Standards: Impacts on Fuel Use in Light-Duty Vehicles and Greenhouse Gas Emissions

    SciTech Connect (OSTI)

    Greene, David L

    2011-01-01

    This study evaluates the potential impacts of a national feebate system, a market-based policy that consists of graduated fees on low-fuel-economy (or high-emitting) vehicles and rebates for high-fuel-economy (or lowemitting) vehicles. In their simplest form, feebate systems operate under three conditions: a benchmark divides all vehicles into two categories-those charged fees and those eligible for rebates; the sizes of the fees and rebates are a function of a vehicle's deviation from its benchmark; and placement of the benchmark ensures revenue neutrality or a desired level of subsidy or revenue. A model developed by the University of California for the California Air Resources Board was revised and used to estimate the effects of six feebate structures on fuel economy and sales of new light-duty vehicles, given existing and anticipated future fuel economy and emission standards. These estimates for new vehicles were then entered into a vehicle stock model that simulated the evolution of the entire vehicle stock. The results indicate that feebates could produce large, additional reductions in emissions and fuel consumption, in large part by encouraging market acceptance of technologies with advanced fuel economy, such as hybrid electric vehicles.

  4. Materials-Enabled High-Efficiency (MEHE) Heavy-Duty Diesel Engines

    SciTech Connect (OSTI)

    Kass, M.; Veliz, M.

    2011-09-30

    The purpose of this Cooperative Research and Development Agreement (CRADA) between UTBattelle, Inc. and Caterpillar, Inc. was to improve diesel engine efficiency by incorporating advanced materials to enable higher combustion pressures and temperatures necessary for improved combustion. The project scope also included novel materials for use in advanced components and designs associated with waste-heat recovery and other concepts for improved thermal efficiency. Caterpillar initially provided ORNL with a 2004 Tier 2 C15 ACERT diesel engine (designed for on-highway use) and two 600 hp motoring dynamometers. The first year of the CRADA effort was focused on establishing a heavy-duty experimental engine research cell. First year activities included procuring, installing and commissioning the cell infrastructure. Infrastructure components consisted of intake air handling system, water tower, exhaust handling system, and cell air conditioning. Other necessary infrastructure items included the fuel delivery system and bottled gas handling to support the analytical instrumentation. The second year of the CRADA focused on commissioning the dynamometer system to enable engine experimentation. In addition to the requirements associated with the dynamometer controller, the electrical system needed a power factor correction system to maintain continuity with the electrical grid. During the second year the engine was instrumented and baseline operated to confirm performance and commission the dynamometer. The engine performance was mapped and modeled according to requirements provided by Caterpillar. This activity was further supported by a Work-for-Others project from Caterpillar to evaluate a proprietary modeling system. A second Work-for-Others activity was performed to evaluate a novel turbocharger design. This project was highly successful and may lead to new turbocharger designs for Caterpillar heavy-duty diesel engines. During the third (and final) year of the CRADA, a novel valve material was evaluated to assess high temperature performance and durability. A series of prototype valves, composed of a unique nickel-alloy was placed in the engine head. The engine was aggressively operated using a transient test cycle for 200 hours. The valve recession was periodically measured to determine valve performance. Upon completion of the test the valves were removed and returned to Caterpillar for additional assessment. Industrial in-kind support was available throughout the project period. Review of the status and research results were carried out on a regular basis (meetings and telecons) which included direction for future work activities. A significant portion of the industrial support was in the form of information exchange and technical consultation.

  5. Light Duty Fuel Cell Electric Vehicle Validation Data. Final Technical Report

    SciTech Connect (OSTI)

    Jelen, Deborah; Odom, Sara

    2015-04-30

    Electricore, along with partners from Quong & Associates, Inc., Honda R&D Americas (Honda), Nissan Technical Center North America (Nissan), and Toyota Motor Engineering & Manufacturing North America, Inc. (Toyota), participated in the Light Duty Fuel Cell Electric Vehicle (FCEV) Validation Data program sponsored by the Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) (Cooperative Agreement No. DE-EE0005968). The goal of this program was to provide real world data from the operation of past and current FCEVs, in order to measure their performance and improvements over time. The program was successful; 85% of the data fields requested were provided and not restricted due to proprietary reasons. Overall, the team from Electricore provided at least 4.8 GB of data to DOE, which was combined with data from other participants to produce over 33 key data products. These products included vehicle performance and fuel cell stack performance/durability. The data were submitted to the National Renewable Energy Laboratory’s National Fuel Cell Technology Evaluation Center (NREL NFCTEC) and combined with input from other participants. NREL then produced composite data products (CDP) which anonymized the data in order to maintain confidentiality. The results were compared with past data, which showed a measurable improvement in FCEVs over the past several years. The results were presented by NREL at the 2014 Fuel Cell Seminar, and 2014 and 2015 (planned) DOE Annual Merit Review. The project was successful. The team provided all of the data agreed upon and met all of its goals. The project finished on time and within budget. In addition, an extra $62,911 of cost sharing was provided by the Electricore team. All participants believed that the method used to collect, combine, anonymize, and present the data was technically and economically effective. This project helped EERE meet its mission of ensuring America’s security and prosperity by documenting progress in addressing energy and environmental challenges. Information from this project will be used by the hydrogen and vehicle industries to help advance the introduction of FCEVs and associated hydrogen infrastructure.

  6. Membrane-Based Air Composition Control for Light-Duty Diesel Vehicles: A Benefit and Cost Assessment

    SciTech Connect (OSTI)

    K. Stork; R. Poola

    1998-10-01

    This report presents the methodologies and results of a study conducted by Argonne National Laboratory (Argonne) to assess the benefits and costs of several membrane-based technologies. The technologies evaluated will be used in automotive emissions-control and performance-enhancement systems incorporated into light-duty diesel vehicle engines. Such engines are among the technologies that are being considered to power vehicles developed under the government-industry Partnership for a New Generation of Vehicles (PNGV). Emissions of nitrogen oxides (NO{sub x}) from diesel engines have long been considered a barrier to use of diesels in urban areas. Recently, particulate matter (PM) emissions have also become an area of increased concern because of new regulations regarding emissions of particulate matter measuring 2.5 micrometers or less (PM{sub 2.5}). Particulates are of special concern for diesel engines in the PNGV program; the program has a research goal of 0.01 gram per mile (g/mi) of particulate matter emissions under the Federal Test Procedure (FTP) cycle. This extremely low level (one-fourth the level of the Tier II standard) could threaten the viability of using diesel engines as stand-alone powerplants or in hybrid-electric vehicles. The techniques analyzed in this study can reduce NO{sub x} and particulate emissions and even increase the power density of the diesel engines used in light-duty diesel vehicles.

  7. Heavy duty insulator assemblies for 500-kV bulk power transmission line with large diameter octagonalbundled conductor

    SciTech Connect (OSTI)

    Tsujimoto, K.; Hayase, I.; Hirai, J.; Inove, M.; Naito, K.; Yukino, T.

    1982-11-01

    This paper describes the design procedure and the results of field tests on mechanical performances of insulator assemblies newly developed to support octagonal-bundled conductors for 500-kV bulk power transmission. Taking account of conductor-motion-induced peak tensile load, fatigue, torsional torque and others, a successful design has been achieved in two prototype assemblies for such heavy mechanical duties as encountered during conductor galloping or swing. This has been proved throughout three years of the field tests.

  8. Natural Gas Vehicle Basics | Department of Energy

    Office of Environmental Management (EM)

    August 20, 2013 - 9:15am Addthis Photo of a large truck stopped at a gas station that ... Some heavy-duty vehicles use spark-ignited natural gas systems, but other systems exist as ...

  9. Battery Wear from Disparate Duty-Cycles: Opportunities for Electric-Drive Vehicle Battery Health Management; Preprint

    SciTech Connect (OSTI)

    Smith, K.; Earleywine, M.; Wood, E.; Pesaran, A.

    2012-10-01

    Electric-drive vehicles utilizing lithium-ion batteries experience wholly different degradation patterns than do conventional vehicles, depending on geographic ambient conditions and consumer driving and charging patterns. A semi-empirical life-predictive model for the lithium-ion graphite/nickel-cobalt-aluminum chemistry is presented that accounts for physically justified calendar and cycling fade mechanisms. An analysis of battery life for plug-in hybrid electric vehicles considers 782 duty-cycles from travel survey data superimposed with climate data from multiple geographic locations around the United States. Based on predicted wear distributions, opportunities for extending battery life including modification of battery operating limits, thermal and charge control are discussed.

  10. Vehicle Technologies Office Merit Review 2014: Hoosier Heavy Hybrid Center of Excellence at Purdue University

    Broader source: Energy.gov [DOE]

    Presentation given by Purdue University at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Hoosier Heavy Hybrid Center...

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

    Broader source: Energy.gov [DOE]

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

  12. Integrated External Aerodynamic and Underhood Thermal Analysis for Heavy Vehicles

    Broader source: Energy.gov [DOE]

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

  13. Next Generation Natural Gas Vehicle (NGNGV) Program Brochure

    SciTech Connect (OSTI)

    Elling, J.

    2000-10-26

    The Department of Energy's Office of Transportation Technologies is initiating the Next Generation Natural Gas Vehicle (NGNGV) Program to develop commercially viable medium- and heavy-duty natural gas vehicles. These new vehicles will incorporate advanced alternative fuel vehicle technologies that were developed by DOE and others.

  14. Effect of Intake Air Filter Condition on Light-Duty Gasoline Vehicles

    SciTech Connect (OSTI)

    Thomas, John F; Huff, Shean P; West, Brian H; Norman, Kevin M

    2012-01-01

    Proper maintenance can help vehicles perform as designed, positively affecting fuel economy, emissions, and the overall drivability. This effort investigates the effect of one maintenance factor, intake air filter replacement, with primary focus on vehicle fuel economy, but also examining emissions and performance. Older studies, dealing with carbureted gasoline vehicles, have indicated that replacing a clogged or dirty air filter can improve vehicle fuel economy and conversely that a dirty air filter can be significantly detrimental to fuel economy. The effect of clogged air filters on the fuel economy, acceleration and emissions of five gasoline fueled vehicles is examined. Four of these were modern vehicles, featuring closed-loop control and ranging in model year from 2003 to 2007. Three vehicles were powered by naturally aspirated, port fuel injection (PFI) engines of differing size and cylinder configuration: an inline 4, a V6 and a V8. A turbocharged inline 4-cylinder gasoline direct injection (GDI) engine powered vehicle was the fourth modern gasoline vehicle tested. A vintage 1972 vehicle equipped with a carburetor (open-loop control) was also examined. Results reveal insignificant fuel economy and emissions sensitivity of modern vehicles to air filter condition, but measureable effects on the 1972 vehicle. All vehicles experienced a measured acceleration performance penalty with clogged intake air filters.

  15. Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications

    Broader source: Energy.gov [DOE]

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

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

    Broader source: Energy.gov [DOE]

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

  17. Non-Cost Barriers to Consumer Adoption of New Light-Duty Vehicle Technologies

    Broader source: Energy.gov [DOE]

    The rate of adoption of new vehicle technologies and related reductions in petroleum use and greenhouse gas emissions rely on how rapidly technology innovations enter the fleet through new vehicle purchases. New technologies often increase vehicle price, which creates a barrier to consumer purchase, but other barriers to adoption are not due to increased purchase prices. For example, plug-in vehicles, dedicated alternative fuel vehicles, and other new technologies face non-cost barriers such as consumer unfamiliarity or requirements for drivers to adjust behavior. This report reviews recent research to help classify these non-cost barriers and determine federal government programs and actions with the greatest potential to overcome them.

  18. EERE Success Story-Heavy Vehicle Fuel Efficiency is no Drag | Department

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

    of Energy Heavy Vehicle Fuel Efficiency is no Drag EERE Success Story-Heavy Vehicle Fuel Efficiency is no Drag March 28, 2016 - 3:17pm Addthis Tractor belly pan helps to improve under-body flow. Tractor belly pan helps to improve under-body flow. History of technology Traveling down any U.S. highway, a driver is bound to see as many big rigs as they do other vehicles. But in 10 years' time, they could see a futuristic sleek, streamlined big rig that looks like something out of a sci-fi

  19. Overview of Friction and Wear Reduction for Heavy Vehicles

    Broader source: Energy.gov [DOE]

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

  20. Cummins/ORNL-FEERC CRADA: NOx Control & Measurement Technology for Heavy-Duty Diesel Engines

    Broader source: Energy.gov [DOE]

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

  1. Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel Injectors

    Broader source: Energy.gov [DOE]

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

  2. Assessing the Battery Cost at Which Plug-In Hybrid Medium-Duty Parcel Delivery Vehicles Become Cost-Effective

    SciTech Connect (OSTI)

    Ramroth, L. A.; Gonder, J. D.; Brooker, A. D.

    2013-04-01

    The National Renewable Energy Laboratory (NREL) validated diesel-conventional and diesel-hybrid medium-duty parcel delivery vehicle models to evaluate petroleum reductions and cost implications of hybrid and plug-in hybrid diesel variants. The hybrid and plug-in hybrid variants are run on a field data-derived design matrix to analyze the effect of drive cycle, distance, engine downsizing, battery replacements, and battery energy on fuel consumption and lifetime cost. For an array of diesel fuel costs, the battery cost per kilowatt-hour at which the hybridized configuration becomes cost-effective is calculated. This builds on a previous analysis that found the fuel savings from medium duty plug-in hybrids more than offset the vehicles' incremental price under future battery and fuel cost projections, but that they seldom did so under present day cost assumptions in the absence of purchase incentives. The results also highlight the importance of understanding the application's drive cycle specific daily distance and kinetic intensity.

  3. Light-Duty Drive Cycle Simulations of Diesel Engine-Out Exhaust Properties for an RCCI-Enabled Vehicle

    SciTech Connect (OSTI)

    Gao, Zhiming; Curran, Scott; Daw, C Stuart; Wagner, Robert M

    2013-01-01

    In-cylinder blending of gasoline and diesel fuels to achieve low-temperature reactivity controlled compression ignition (RCCI) can reduce NOx and PM emissions while maintaining or improving brake thermal efficiency compared to conventional diesel combustion (CDC). Moreover, the dual-fueling RCCI is able to achieve these benefits by tailoring combustion reactivity over a wider range of engine operation than is possible with a single fuel. However, the currently demonstrated range of stable RCCI combustion just covers a portion of the engine speed-load range required in several light-duty drive cycles. This means that engines must switch from RCCI to CDC when speed and load fall outside of the stable RCCI range. In this study we investigated the impact of RCCI as it has recently been demonstrated on practical engine-out exhaust temperature and emissions by simulating a multi-mode RCCI-enabled vehicle operating over two urban and two highway driving cycles. To implement our simulations, we employed experimental engine maps for a multi-mode RCCI/CDC engine combined with a standard mid-size, automatic transmission, passenger vehicle in the Autonomie vehicle simulation platform. Our results include both detailed transient and cycle-averaged engine exhaust temperature and emissions for each case, and we note the potential implications of the modified exhaust properties on catalytic emissions control and utilization of waste heat recovery on future RCCI-enabled vehicles.

  4. Vehicle Technologies Office Merit Review 2014: Medium Duty ARRA Data Reporting and Analysis

    Broader source: Energy.gov [DOE]

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

  5. Vehicle Technologies Office Merit Review 2015: Medium Duty ARRA Data Reporting and Analysis

    Broader source: Energy.gov [DOE]

    Presentation given by National Renewable Energy Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about medium...

  6. FreedomCAR and vehicle technologies heavy vehicle program FY 2006. Benefits analysis : methodology and results - final report.

    SciTech Connect (OSTI)

    Singh, M.; Energy Systems; TA Engineering, Inc.

    2006-01-31

    This report describes the approach to estimating benefits and the analysis results for the Heavy Vehicle Technologies activities of the Freedom Car and Vehicle Technologies (FCVT) Program of EERE. The scope of the effort includes: (1) Characterizing baseline and advanced technology vehicles for Class 3-6 and Class 7 and 8 trucks, (2) Identification of technology goals associated with the DOE EERE programs, (3) Estimating the market potential of technologies that improve fuel efficiency and/or use alternative fuels, (4) Determining the petroleum and greenhouse gas emissions reductions associated with the advanced technologies. In FY 05 the Heavy Vehicles program activity expanded its technical involvement to more broadly address various sources of energy loss as compared to focusing more narrowly on engine efficiency and alternative fuels. This broadening of focus has continued in the activities planned for FY 06. These changes are the result of a planning effort that occurred during FY 04 and 05. (Ref. 1) This narrative describes characteristics of the heavy truck market as they relate to the analysis, a description of the analysis methodology (including a discussion of the models used to estimate market potential and benefits), and a presentation of the benefits estimated as a result of the adoption of the advanced technologies. These benefits estimates, along with market penetrations and other results, are then modeled as part of the EERE-wide integrated analysis to provide final benefit estimates reported in the FY06 Budget Request.

  7. Freedom car and vehicle technologies heavy vehicle program : FY 2007 benefits analysis, methodology and results -- final report.

    SciTech Connect (OSTI)

    SIngh, M.; Energy Systems; TA Engineering

    2008-02-29

    This report describes the approach to estimating the benefits and analysis results for the Heavy Vehicle Technologies activities of the FreedomCar and Vehicle Technologies (FCVT) Program of EERE. The scope of the effort includes: (1) Characterizing baseline and advanced technology vehicles for Class 3-6 and Class 7 and 8 trucks, (2) Identifying technology goals associated with the DOE EERE programs, (3) Estimating the market potential of technologies that improve fuel efficiency and/or use alternative fuels, (4) Determining the petroleum and greenhouse gas emissions reductions associated with the advanced technologies. In FY 05 the Heavy Vehicles program activity expanded its technical involvement to more broadly address various sources of energy loss as compared to focusing more narrowly on engine efficiency and alternative fuels. This broadening of focus has continued in subsequent activities. These changes are the result of a planning effort that occurred during FY 04 and 05. (Ref. 1) This narrative describes characteristics of the heavy truck market as they relate to the analysis, a description of the analysis methodology (including a discussion of the models used to estimate market potential and benefits), and a presentation of the benefits estimated as a result of the adoption of the advanced technologies. The market penetrations are used as part of the EERE-wide integrated analysis to provide final benefit estimates reported in the FY07 Budget Request. The energy savings models are utilized by the FCVT program for internal project management purposes.

  8. Rebound 2007: Analysis of U.S. Light-Duty Vehicle Travel Statistics

    SciTech Connect (OSTI)

    Greene, David L

    2010-01-01

    U.S. national time series data on vehicle travel by passenger cars and light trucks covering the period 1966 2007 are used to test for the existence, size and stability of the rebound effect for motor vehicle fuel efficiency on vehicle travel. The data show a statistically significant effect of gasoline price on vehicle travel but do not support the existence of a direct impact of fuel efficiency on vehicle travel. Additional tests indicate that fuel price effects have not been constant over time, although the hypothesis of symmetry with respect to price increases and decreases is not rejected. Small and Van Dender (2007) model of a declining rebound effect with income is tested and similar results are obtained.

  9. Design Optimization of Piezoceramic Multilayer Actuators for Heavy Duty Diesel Engine Fuel Injectors

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  10. Heavy-Duty Powertrain DevelopmentCurrent Status and Future Opportuniti...

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

    Technologies Office Merit Review 2015: SuperTruck Program: Engine Project Review Vehicle Technologies Office Merit Review 2015: Class 8 Truck Freight Efficiency Improvement Project

  11. Cummins/ORNL-FEERC CRADA: NOx Control & Measurement Technology for Heavy-Duty Diesel Engines

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  12. Fuel Effects on Advanced Combustion: Heavy-Duty Optical-Engine Research

    Broader source: Energy.gov [DOE]

    2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

  13. APBF- DEC Heavy-Duty NOx Adsorber/DPF Project: Catalyst Aging Study |

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

    Department of Energy 4 Diesel Engine Emissions Reduction (DEER) Conference Presentation: National Renewable Energy Laboratory PDF icon 2004_deer_whitacre.pdf More Documents & Publications APBF-DEC Light-duty NOx Adsorber/DPF Project Status of APBF-DEC NOx Adsorber/DPF Projects APBF-DEC NOx Adsorber/DPF Project: SUV/Pick-Up Platform

  14. Vehicle Technologies Office: Natural Gas Research | Department of Energy

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

    Alternative Fuels » Vehicle Technologies Office: Natural Gas Research Vehicle Technologies Office: Natural Gas Research Natural gas offers tremendous opportunities for reducing the use of petroleum in transportation. Medium and heavy-duty fleets, which have significant potential to use natural gas, currently consume more than a third of the petroleum in transportation in the U.S. Natural gas is an excellent fit for a wide range of heavy-duty applications, especially transit buses, refuse

  15. Vehicle Technologies Office Merit Review 2015: Polyalkylene Glycol (PAG) Based Lubricant for Light & Medium Duty Axles

    Broader source: Energy.gov [DOE]

    Presentation given by Ford Motor Company at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about polyalkylene glycol (PAG)...

  16. Vehicle Technologies Office Merit Review 2014: Light-Duty Diesel Combuston

    Broader source: Energy.gov [DOE]

    Presentation given by Sandia Natonal Laboratories and  University of Wisconsin at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation...

  17. Thermal management in heavy vehicles : a review identifying issues and research requirements.

    SciTech Connect (OSTI)

    Wambsganss, M. W.

    1999-01-15

    Thermal management in heavy vehicles is cross-cutting because it directly or indirectly affects engine performance, fuel economy, safety and reliability, engine/component life, driver comfort, materials selection, emissions, maintenance, and aerodynamics. It follows that thermal management is critical to the design of large (class 6-8) trucks, especially in optimizing for energy efficiency and emissions reduction. Heat rejection requirements are expected to increase, and it is industry's goal to develop new, innovative, high-performance cooling systems that occupy less space and are lightweight and cost-competitive. The state of the art in heavy vehicle thermal management is reviewed, and issues and research areas are identified.

  18. Heavy Truck Engine Development & HECC | Department of Energy

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

    More Documents & Publications High Efficiency Clean Combustion for Heavy-Duty Engine High Efficiency Clean Combustion for Heavy-Duty Engine Heavy-Duty Engine Combustion ...

  19. Global Assessment of Hydrogen Technologies - Task 1 Report Technology Evaluation of Hydrogen Light Duty Vehicles

    SciTech Connect (OSTI)

    Fouad, Fouad H.; Peters, Robert W.; Sisiopiku, Virginia P.; Sullivan Andrew J.; Rousseau, Aymeric

    2007-12-01

    This task analyzes the candidate hydrogen-fueled vehicles for near-term use in the Southeastern U.S. The purpose of this work is to assess their potential in terms of efficiency and performance. This report compares conventional, hybrid electric vehicles (HEV) with gasoline and hydrogen-fueled internal combustion engines (ICEs) as well as fuel cell and fuel cell hybrids from a technology as well as fuel economy point of view. All the vehicles have been simulated using the Powertrain System Analysis Toolkit (PSAT). First, some background information is provided on recent American automotive market trends and consequences. Moreover, available options are presented for introducing cleaner and more economical vehicles in the market in the future. In this study, analysis of various candidate hydrogen-fueled vehicles is performed using PSAT and, thus, a brief description of PSAT features and capabilities are provided. Detailed information on the simulation analysis performed is also offered, including methodology assumptions, fuel economic results, and conclusions from the findings.

  20. LNT + SCR Aftertreatment for Medium-Heavy Duty Applications: A Systems Approach

    Broader source: Energy.gov [DOE]

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

  1. Fuel Effects on Advanced Combustion: Heavy-Duty Optical-Engine...

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

    10 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ft004mueller2010o.pdf More...

  2. Heavy-Duty Engine Combustion Optimization for High Thermal Efficiency Targeting EPA 2010 Emissions

    Broader source: Energy.gov [DOE]

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

  3. Demonstration of a Low-NOx Heavy-Duty Natural Gas Engine

    SciTech Connect (OSTI)

    Not Available

    2004-02-01

    Results of a Next Generation Natural Gas Vehicle engine research project: A Caterpillar C-12 natural gas engine with Clean Air Power Dual-Fuel technology and exhaust gas recirculation demonstrated low NOx and PM emissions.

  4. Fuel Effects on Advanced Combustion: Heavy-Duty Optical-Engine Research |

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

    Department of Energy This page contains information on the recently released BioPower engines. PDF icon analysis_saab2007.pdf More Documents & Publications Enabling High Efficiency Ethanol Engines Flexible Fuel Vehicles: Providing a Renewable Fuel Choice, Vehicle Technologies Program (VTP) (Fact Sheet) The Impact of Low Octane Hydrocarbon Blending Streams on "E85" Engine Optimization

    Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs What does this

  5. Integrated Mathematical Modeling Software Series of Vehicle Propulsion

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

    System: (1) Tractive Effort (T sub ew) of Vehicle Road Wheel/Track Sprocket | Department of Energy Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon p-11_mekari.pdf More Documents & Publications Power & Energyfrom an Army Ground Vehicle Perspective Truck Duty Cycle and Performance Data Collection and Analysis Program WORKSHOP REPORT: Trucks and Heavy-Duty Vehicles Technical

  6. Investigation of Tractor Base Bleeding for Heavy Vehicle Aerodynamic Drag Reduction

    SciTech Connect (OSTI)

    Ortega, J; Salari, K; Storms, B

    2007-10-25

    One of the main contributors to the aerodynamic drag of a heavy vehicle is tractor-trailer gap drag, which arises when the vehicle operates within a crosswind. Under this operating condition, freestream flow is entrained into the tractor-trailer gap, imparting a momentum exchange to the vehicle and subsequently increasing the aerodynamic drag. While a number of add-on devices, including side extenders, splitter plates, vortex stabilizers, and gap sealers, have been previously tested to alleviate this source of drag, side extenders remain the primary add-on device of choice for reducing tractor-trailer gap drag. However, side extenders are not without maintenance and operational issues. When a heavy vehicle pivots sharply with respect to the trailer, as can occur during loading or unloading operations, the side extenders can become crushed against the trailer. Consequently, fleet operators are forced to incur additional costs to cover the repair or replacement of the damaged side extenders. This issue can be overcome by either shortening the side extenders or by devising an alternative drag reduction concept that can perform just as effectively as side extenders. To explore such a concept, we investigate tractor base bleeding as a means of reducing gap drag. Wind tunnel measurements are made on a 1:20 scale heavy vehicle model at a vehicle width-based Reynolds number of 420,000. The tractor bleeding flow, which is delivered through a porous material embedded within the tractor base, is introduced into the tractor-trailer gap at bleeding coefficients ranging from 0.0-0.018. To determine the performance of tractor base bleeding under more realistic operating conditions, computational fluid dynamics simulations are performed on a full-scale heavy vehicle within a crosswind for bleeding coefficients ranging from 0.0-0.13.

  7. Alloy Design and Thermomechanical Processing of a Beta Titanium Alloy for a Heavy Vehicle Application

    SciTech Connect (OSTI)

    Blue, C.A.; Peter, W.H.

    2010-07-02

    With the strength of steel, but at half the weight, titanium has the potential to offer significant benefits in the weight reduction of heavy vehicle components while possibly improving performance. However, the cost of conventional titanium fabrication is a major barrier in implementation. New reduction technologies are now available that have the potential to create a paradigm shift in the way the United States uses titanium, and the economics associated with fabrication of titanium components. This CRADA project evaluated the potential to develop a heavy vehicle component from titanium powders. The project included alloy design, development of manufacturing practices, and modeling the economics associated with the new component. New Beta alloys were designed for this project to provide the required mechanical specifications while utilizing the benefits of the new fabrication approach. Manufacturing procedures were developed specific to the heavy vehicle component. Ageing and thermal treatment optimization was performed to provide the desired microstructures. The CRADA partner established fabrication practices and targeted capital investment required for fabricating the component out of titanium. Though initial results were promising, the full project was not executed due to termination of the effort by the CRADA partner and economic trends observed in the heavy vehicle market.

  8. Working group meeting on heavy vehicle aerodynamic drag: presentations and summary of comments and conclusion

    SciTech Connect (OSTI)

    Browand, F; Gutierrez, W; Leonard, A; McBride, D; McCallen, R; Ross, J; Roth, K; Rutledge, W; Salari, K

    1998-09-28

    The first Working Group Meeting on Heavy Vehicle Aerodynamic Drag was held at Sandia National Laboratories (SNL) in Albuquerque, New Mexico on August 28, 1998. The purpose of the meeting was to review the proposed Multi-Year Program Plan (MYPP) and provide an update on the Group"s progress. In addition, the technical details of each organization"s activities were presented and discussed. Presentations were given by representatives from the Department of Energy (DOE) Office of Transportation Technology Office of Heavy Vehicle Technology (OHVT), Lawrence Livermore National Laboratory (LLNL), SNL, University of Southern California (USC), California Institute of Technology (Caltech), and NASA Ames Research Center. These presenters are part of a DOE appointed Technical Team assigned to developing the MYPP. The goal of the MYPP is to develop and demonstrate the ability to simulate and analyze aerodynamic flow around heavy truck vehicles using existing and advanced computational tools (A Multi-Year Program Plan for the Aerodynamic Design of Heavy Vehicles, R. McCallen, D. McBride, W. Rutledge, F. Browand, A. Leonard, .I. Ross, UCRL-PROP- 127753 Dr. Rev 2, May 1998). This report contains the technical presentations (viewgraphs) delivered at the Meeting, briefly summarizes the comments and conclusions from the Meeting participants, and outlines the future actions.

  9. Working group meeting on heavy vehicle aerodynamic drag: presentations and summary of comments and

    SciTech Connect (OSTI)

    Browand, F; Gutierrez, W; Leonard, A; McBride, D; McCallen, R; Ross, J; Roth, K; Rutledge, W; Salari, K.

    1998-09-28

    The first Working Group Meeting on Heavy Vehicle Aerodynamic Drag was held at Sandia National Laboratories (SNL) in Albuquerque, New Mexico on August 28, 1998. The purpose of the meeting was to review the proposed Multi-Year Program Plan (MYPP) and provide an update on the Group s progress. In addition, the technical details of each organization s activities were presented and discussed. Presentations were given by representatives from the Department of Energy (DOE) Office of Transportation Technology Office of Heavy Vehicle Technology (OHVT), Lawrence Livermore National Laboratory (LLNL), SNL, University of Southern California (USC), California Institute of Technology (Caltech), and NASA Ames Research Center. These presenters are part of a DOE appointed Technical Team assigned to developing the MYPP. The goal of the MYPP is to develop and demonstrate the ability to simulate and analyze aerodynamic flow around heavy truck vehicles using existing and advanced computational tools (A Multi-Year Program Plan for the Aerodynamic Design of Heavy Vehicles, R. McCallen, D. McBride, W. Rutledge, F. Browand, A. Leonard, .I. Ross, UCRL-PROP- 127753 Dr. Rev 2, May 1998). This report contains the technical presentations (viewgraphs) delivered at the Meeting, briefly summarizes the comments and conclusions from the Meeting participants, and outlines the future actions.

  10. US Department of Energy workshop on future fuel technology for heavy vehicles

    SciTech Connect (OSTI)

    1996-12-31

    The objective of the workshop described in this report was to develop consensus on a program strategy for use of alternative fuels in heavy vehicles. Participants represented fuel providers, additive suppliers, the trucking industry, engine manufacturers, and government or national laboratory staff. Breakout sessions were co-facilitated by national laboratory staff and industry representatives.

  11. Truck Duty Cycle and Performance Data Collection and Analysis...

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

    More Documents & Publications Heavy Duty & Medium Duty Drive Cycle Data Collection for Modeling Expansion Truck Duty Cycle and Performance Data Collection and Analysis Program 2010 ...

  12. Simulated fuel economy and emissions performance during city and interstate driving for a heavy-duty hybrid truck

    SciTech Connect (OSTI)

    Daw, C Stuart; Gao, Zhiming; Smith, David E; LaClair, Tim J; Pihl, Josh A; Edwards, Kevin Dean

    2013-01-01

    We compare simulated fuel economy and emissions for both conventional and hybrid class 8 heavy-duty diesel trucks operating over multiple urban and highway driving cycles. Both light and heavy freight loads were considered, and all simulations included full aftertreatment for NOx and particulate emissions controls. The aftertreatment components included a diesel oxidation catalyst (DOC), urea-selective catalytic NOx reduction (SCR), and a catalyzed diesel particulate filter (DPF). Our simulated hybrid powertrain was configured with a pre-transmission parallel drive, with a single electric motor between the clutch and gearbox. A conventional HD truck with equivalent diesel engine and aftertreatment was also simulated for comparison. Our results indicate that hybridization can significantly increase HD fuel economy and improve emissions control in city driving. However, there is less potential hybridization benefit for HD highway driving. A major factor behind the reduced hybridization benefit for highway driving is that there are fewer opportunities to utilize regenerative breaking. Our aftertreatment simulations indicate that opportunities for passive DPF regeneration are much greater for both hybrid and conventional trucks during highway driving due to higher sustained exhaust temperatures. When passive DPF regeneration is extensively utilized, the fuel penalty for particulate control is virtually eliminated, except for the 0.4%-0.9% fuel penalty associated with the slightly higher exhaust backpressure.

  13. Federal certification test results for 1992 model year. Control of air pollution from new motor vehicles and new motor vehicle engines

    SciTech Connect (OSTI)

    Not Available

    1992-01-01

    Each manufacturer of a passenger car, (light-duty-vehicle), light-duty truck, motorcycle, heavy-duty gasoline engine, and heavy-duty diesel engine is required to demonstrate compliance with the applicable exhaust emission standard. This report contains all of the individual tests that were required by the certification-procedures found in Title 40 of the Code of Federal Regulations in Part 86. These data were submitted to the Environmental Protection Agency's Certification Division at the National Vehicle and Fuel Emissions Laboratory.

  14. A High Temperature Direct Vehicle Exhaust Flowmeter for Heavy Duty Diesel Emission Measurements.

    Office of Energy Efficiency and Renewable Energy (EERE)

    Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010.

  15. Second Stage Intercooling Using LNG for Turbocharged Heavy Duty Road Vehicles Phase I Final Report

    SciTech Connect (OSTI)

    1999-09-21

    It is well documented in engine performance literature that reduced engine inlet air temperature increases power output and reduces NO, emissions for both diesel and spark ignited (SI) engines. In addition, reduced inlet temperature increases the knock resistance of SI engines. In that most HD natural gas engines are SI derivatives of diesel engines it is appropriate to evaluate the benefits of reduced engine air temperature through LNG fuel. This project investigated the ''real world'' possibilities of a patented process for utilizing the ''cold'' in LNG to chill engine inlet air. The results support the conclusion that doing so is a practical means to increase engine power and reduce engine-out NO{sub x}.

  16. Measurement of Real-World Emissions from Heavy-Duty Diesel Vehicles: The

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

    (IDIQ Attachment J-8) | Department of Energy Document outlines measurement and verification planning and savings calculation methods for an energy savings performance contract. Microsoft Office document icon Download the M&V Plan and Savings Calculations Methods Outline. More Documents & Publications Post-Installation Report Outline (IDIQ Attachment J-9) Annual Report Outline (IDIQ Attachment J-10) ESPC ENABLE Measurement and Verification Protocol Advanced Lighting Controls |

  17. Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty...

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

    and Thermal Comfort Enablers for Light-Duty Vehicle Applications Thermoelectric HVAC and Thermal Comfort Enablers for Light-Duty Vehicle Applications 2012 DOE Hydrogen and Fuel ...

  18. Liquefied natural gas as a transportation fuel for heavy-duty trucks: Volume I

    SciTech Connect (OSTI)

    1997-12-01

    This document contains Volume 1 of a three-volume manual designed for use with a 2- to 3-day liquefied natural gas (LNG) training course. Transportation and off-road agricultural, mining, construction, and industrial applications are discussed. This volume provides a brief introduction to the physics and chemistry of LNG; an overview of several ongoing LNG projects, economic considerations, LNG fuel station technology, LNG vehicles, and a summary of federal government programs that encourage conversion to LNG.

  19. Design and Implementation of Silicon Nitride Valves for Heavy Duty Diesel

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

    Engines | Department of Energy Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). PDF icon deer07_lin_ht.pdf More Documents & Publications Durability of ACERT Engine Components Durability of ACERT Engine Components Durability of ACERT Engine Components

  20. Efficient Use of Natural Gas Based Fuels in Heavy-Duty Engines | Department

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

    of Energy Natural gas and other liquid feedstocks for transportation fuels are compared for use in a dual-fuel engine. Benefits include economic stability, national security, environment, and cost. PDF icon deer12_kargul.pdf More Documents & Publications A Universal Dual-Fuel Controller for OEM/Aftermarket Diesel Engineswith Comprehensive Fuel & Emission Control Natural Gas Basics, Vehicle Technologies Program (VTP) (Fact Sheet) Characterization of Dual-Fuel Reactivity Controlled

  1. Drive cycle analysis of butanol/diesel blends in a light-duty vehicle.

    SciTech Connect (OSTI)

    Miers, S. A.; Carlson, R. W.; McConnell, S. S.; Ng, H. K.; Wallner, T.; LeFeber, J.; Energy Systems; Esper Images Video & Multimedia

    2008-10-01

    The potential exists to displace a portion of the petroleum diesel demand with butanol and positively impact engine-out particulate matter. As a preliminary investigation, 20% and 40% by volume blends of butanol with ultra low sulfur diesel fuel were operated in a 1999 Mercedes Benz C220 turbo diesel vehicle (Euro III compliant). Cold and hot start urban as well as highway drive cycle tests were performed for the two blends of butanol and compared to diesel fuel. In addition, 35 MPH and 55 MPH steady-state tests were conducted under varying road loads for the two fuel blends. Exhaust gas emissions, fuel consumption, and intake and exhaust temperatures were acquired for each test condition. Filter smoke numbers were also acquired during the steady-state tests.

  2. Development of Urea Dosing System for 10 Liter Heavy Duty Diesel Engine

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

    | Department of Energy These slides were presented at the 2010 New Fuel Cell Projects Meeting on September 28, 2010. PDF icon 7_usc_popov.pdf More Documents & Publications DOE's Fuel Cell Catalyst R&D Activities 2006 Alkaline Membrane Fuel Cell Workshop Final Report Highly Dispersed Alloy Cathode Catalyst for Durability Powered Vehicle | Department of Energy

    Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI,

  3. Very High Fuel Economy, Heavy Duty, Constant Speed, Truck Engine Optimized Via Unique Energy Recovery Turbines and Facilitated High Efficiency Continuously Variable Drivetrain

    SciTech Connect (OSTI)

    Bahman Habibzadeh

    2010-01-31

    The project began under a corporative agreement between Mack Trucks, Inc and the Department of Energy starting from September 1, 2005. The major objective of the four year project is to demonstrate a 10% efficiency gain by operating a Volvo 13 Litre heavy-duty diesel engine at a constant or narrow speed and coupled to a continuously variable transmission. The simulation work on the Constant Speed Engine started on October 1st. The initial simulations are aimed to give a basic engine model for the VTEC vehicle simulations. Compressor and turbine maps are based upon existing maps and/or qualified, realistic estimations. The reference engine is a MD 13 US07 475 Hp. Phase I was completed in May 2006 which determined that an increase in fuel efficiency for the engine of 10.5% over the OICA cycle, and 8.2% over a road cycle was possible. The net increase in fuel efficiency would be 5% when coupled to a CVT and operated over simulated highway conditions. In Phase II an economic analysis was performed on the engine with turbocompound (TC) and a Continuously Variable Transmission (CVT). The system was analyzed to determine the payback time needed for the added cost of the TC and CVT system. The analysis was performed by considering two different production scenarios of 10,000 and 60,000 units annually. The cost estimate includes the turbocharger, the turbocompound unit, the interstage duct diffuser and installation details, the modifications necessary on the engine and the CVT. Even with the cheapest fuel and the lowest improvement, the pay back time is only slightly more than 12 months. A gear train is necessary between the engine crankshaft and turbocompound unit. This is considered to be relatively straight forward with no design problems.

  4. An Investigation on an Ethylene Gylcol/Water Nanofluid for Heavy...

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

    Use of nanofluids can help reduce radiator frontal area for heavy-duty vehicles and improves fuel efficiency. PDF icon deer08singh.pdf More Documents & Publications Erosion of ...

  5. Evaluation of aftermarket CNG conversion kits in light-duty vehicle applications. Final report

    SciTech Connect (OSTI)

    Blazek, C.F.; Rowley, P.F.; Grimes, J.W.

    1995-07-01

    The Institute of Gas Technology (IGT) was contracted by the National Renewable Energy Laboratory (NREL) to evaluate three compressed natural gas (CNG) conversion systems using a 1993 Chevrolet Lumina baseline vehicle. A fourth conversion system was added to the test matrix through funding support from Brooklyn Union. The objective of this project was to measure the Federal Test Procedure (FTP) emissions and fuel economy of the different conversion systems, and to compare the performance to gasoline-fueled operation and each other. Different natural gas compositions were selected to represent the 10th percentile, mean, and 90th percentile compositions distributed in the Continental United States. Testing with these different compositions demonstrated the systems` ability to accommodate the spectrum of gas found in the United States. Each compressed natural gas conversion system was installed and adjusted according to the manufacturer`s instructions. In addition to the FTP testing, an evaluation of the comparative installation times and derivability tests (based on AGA and CRC guidelines) were conducted on each system.

  6. Effect of Gasoline Properties on Exhaust Emissions from Tier 2 Light-Duty Vehicles -- Final Report: Phase 3; July 28, 2008 - July 27, 2013

    SciTech Connect (OSTI)

    Whitney, K.

    2014-05-01

    This report covers work the Southwest Research Institute (SwRI) Office of Automotive Engineering has conducted for the U.S. Environmental Protection Agency (EPA), the National Renewable Energy Laboratory (NREL), and the Coordinating Research Council (CRC) in support of the Energy Policy Act of 2005 (EPAct). Section 1506 of EPAct requires EPA to produce an updated fuel effects model representing the 2007 light - duty gasoline fleet, including determination of the emissions impacts of increased renewable fuel use. This report covers the exhaust emissions testing of 15 light-duty vehicles with 27 E0 through E20 test fuels, and 4 light-duty flexible fuel vehicles (FFVs) on an E85 fuel, as part of the EPAct Gasoline Light-Duty Exhaust Fuel Effects Test Program. This program will also be referred to as the EPAct/V2/E-89 Program based on the designations used for it by the EPA, NREL, and CRC, respectively. It is expected that this report will be an attachment or a chapter in the overall EPAct/V2/E-89 Program report prepared by EPA and NREL.

  7. 2014 Vehicle Technologies Market Report

    SciTech Connect (OSTI)

    Davis, Stacy Cagle; Diegel, Susan W; Boundy, Robert Gary; Moore, Sheila A

    2015-03-01

    This is the sixth edition of this report, which details the major trends in U.S. light-duty vehicle and medium/heavy truck markets as well as the underlying trends that caused them. This report is supported by the U.S. Department of Energy s (DOE) Vehicle Technologies Office (VTO), and, in accord with its mission, pays special attention to the progress of high-efficiency and alternative-fuel technologies. After opening with a discussion of energy and economics, this report features a section each on the light-duty vehicle and heavy/medium truck markets, and concluding with a section each on technology and policy. The first section on Energy and Economics discusses the role of transportation energy and vehicle markets on a national (and even international) scale. The following section examines Light-Duty Vehicle use, markets, manufacture, and supply chains. The discussion of Medium and Heavy Trucks offers information on truck sales and technologies specific to heavy trucks. The Technology section offers information on alternative fuel vehicles and infrastructure, and the Policy section concludes with information on recent, current, and near-future Federal policies like the Corporate Average Fuel Economy standards. In total, the information contained in this report is intended to communicate a fairly complete understanding of U.S. highway transportation energy through a series of easily digestible tables and figures.

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

    SciTech Connect (OSTI)

    Johnson, D.R.

    2000-01-01

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

  9. Development of Pneumatic Aerodynamic Devices to Improve the Performance, Economics, and Safety of Heavy Vehicles

    SciTech Connect (OSTI)

    Robert J. Englar

    2000-06-19

    Under contract to the DOE Office of Heavy Vehicle Technologies, the Georgia Tech Research Institute (GTRI) is developing and evaluating pneumatic (blown) aerodynamic devices to improve the performance, economics, stability and safety of operation of Heavy Vehicles. The objective of this program is to apply the pneumatic aerodynamic aircraft technology previously developed and flight-tested by GTRI personnel to the design of an efficient blown tractor-trailer configuration. Recent experimental results obtained by GTRI using blowing have shown drag reductions of 35% on a streamlined automobile wind-tunnel model. Also measured were lift or down-load increases of 100-150% and the ability to control aerodynamic moments about all 3 axes without any moving control surfaces. Similar drag reductions yielded by blowing on bluff afterbody trailers in current US trucking fleet operations are anticipated to reduce yearly fuel consumption by more than 1.2 billion gallons, while even further reduction is possible using pneumatic lift to reduce tire rolling resistance. Conversely, increased drag and down force generated instantaneously by blowing can greatly increase braking characteristics and control in wet/icy weather due to effective ''weight'' increases on the tires. Safety is also enhanced by controlling side loads and moments caused on these Heavy Vehicles by winds, gusts and other vehicles passing. This may also help to eliminate the jack-knifing problem if caused by extreme wind side loads on the trailer. Lastly, reduction of the turbulent wake behind the trailer can reduce splash and spray patterns and rough air being experienced by following vehicles. To be presented by GTRI in this paper will be results developed during the early portion of this effort, including a preliminary systems study, CFD prediction of the blown flowfields, and design of the baseline conventional tractor-trailer model and the pneumatic wind-tunnel model.

  10. Heavy-duty diesel engine NO{sub x} reduction with nitrogen-enriched combustion air. Final CRADA report.

    SciTech Connect (OSTI)

    McConnell, S.; Energy Systems

    2010-07-28

    The concept of engine emissions control by modifying intake combustion gas composition from that of ambient air using gas separation membranes has been developed during several programs undertaken at Argonne. These have led to the current program which is targeted at heavy-duty diesel truck engines. The specific objective is reduction of NO{sub x} emissions by the target engine to meet anticipated 2007 standards while extracting a maximum of 5 percent power loss and allowing implementation within commercial constraints of size, weight, and cost. This report includes a brief review of related past programs, describes work completed to date during the current program, and presents interim conclusions. Following a work schedule adjustment in August 2002 to accommodate problems in module procurement and data analysis, activities are now on schedule and planned work is expected to be completed in September, 2004. Currently, we believe that the stated program requirements for the target engine can be met, based upon extrapolation of the work completed. Planned project work is designed to experimentally confirm these projections and result in a specification for a module package that will meet program objectives.

  11. Vehicle Technologies Office Merit Review 2015: Hoosier Heavy Hybrid Center of Excellence (H3CoE) at Purdue University

    Broader source: Energy.gov [DOE]

    Presentation given by Purdue University at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about Hoosier Heavy Hybrid Center...

  12. Effects of Biodiesel Blends on Vehicle Emissions: Fiscal Year 2006 Annual Operating Plan Milestone 10.4

    SciTech Connect (OSTI)

    McCormick, R. L.; Williams, A.; Ireland, J.; Hayes, R. R.

    2006-10-01

    The objective was to determine if testing entire vehicles, vs. just the engines, on a heavy-duty chassis dynamometer provides a better, measurement of the impact of B20 on emissions.

  13. Vehicle Technologies Office: Parasitic Loss Reduction Research and

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

    Development (R&D) | Department of Energy Fuel Efficiency & Emissions » Vehicle Technologies Office: Parasitic Loss Reduction Research and Development (R&D) Vehicle Technologies Office: Parasitic Loss Reduction Research and Development (R&D) Non-engine losses such as wind resistance and drag, braking, and rolling resistance can account for up to a 45% decrease in efficiency for heavy-duty vehicles. The Vehicle Technologies Office (VTO) supports research and development

  14. 2014 Vehicle Technologies Market Report Released | Department of Energy

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

    2014 Vehicle Technologies Market Report Released 2014 Vehicle Technologies Market Report Released April 14, 2015 - 9:27am Addthis Oak Ridge National Laboratory, supported by the U.S. Department of Energy's Vehicle Technologies Office, recently released the 2014 Vehicle Technologies Market Report. The Market Report details the past year's major trends in light-, medium-, and heavy-duty car and truck markets as well as patterns in the underlying economic and transportation systems. The report

  15. Cost of Ownership and Well-to-Wheels Carbon Emissions/Oil Use of Alternative Fuels and Advanced Light-Duty Vehicle Technologies

    SciTech Connect (OSTI)

    Elgowainy, Mr. Amgad; Rousseau, Mr. Aymeric; Wang, Mr. Michael; Ruth, Mr. Mark; Andress, Mr. David; Ward, Jacob; Joseck, Fred; Nguyen, Tien; Das, Sujit

    2013-01-01

    The U.S. Department of Energy (DOE), Argonne National Laboratory (Argonne), and the National Renewable Energy Laboratory (NREL) updated their analysis of the well-to-wheels (WTW) greenhouse gases (GHG) emissions, petroleum use, and the cost of ownership (excluding insurance, maintenance, and miscellaneous fees) of vehicle technologies that have the potential to significantly reduce GHG emissions and petroleum consumption. The analyses focused on advanced light-duty vehicle (LDV) technologies such as plug-in hybrid, battery electric, and fuel cell electric vehicles. Besides gasoline and diesel, alternative fuels considered include natural gas, advanced biofuels, electricity, and hydrogen. The Argonne Greenhouse Gases, Regulated Emissions, and Energy Use in Transportation (GREET) and Autonomie models were used along with the Argonne and NREL H2A models.

  16. Effect Of Platooning on Fuel Consumption of Class 8 Vehicles Over a Range of Speeds, Following Distances, and Mass

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

    Vehicle automation is a promising petroleum reduction technology, and platooning systems for heavy-duty vehicles are likely to be a frst step towards acceptance of vehicle automation. These systems may employ existing technologies such as radar or laser range fnders, global positioning system (GPS), dedicated vehicle-to-vehicle communications (V2V), and braking and engine torque authority to enable vehicles to follow safely in close proximity with the goal of reducing fuel consumption, traffc

  17. Vehicle Technologies Office: 2009 Advanced Vehicle Technology...

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

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

  18. Vehicle Technologies Office: 21st Century Truck Partners

    Broader source: Energy.gov [DOE]

    The 21st Century Truck Partnership is an industry-government collaboration among heavy-duty engine manufacturers, medium-duty and heavy-duty truck and bus manufacturers, heavy-duty hybrid...

  19. Vehicle Data for Alternative Fuel Vehicles (AFVs) and Hybrid Fuel Vehicles (HEVs) from the Alternative Fuels and Advanced Vehicles Data Center (AFCD)

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    The AFDC provides search capabilities for many different models of both light-duty and heavy-duty vehicles. Engine and transmission type, fuel and class, fuel economy and emission certification are some of the facts available. The search will also help users locate dealers in their areas and do cost analyses. Information on alternative fuel vehicles and on advanced technology vehicles, along with calculators, resale and conversion information, links to incentives and programs such as Clean Cities, and dozens of fact sheets and publications make this section of the AFDC a valuable resource for car buyers.

  20. Impacts of ethanol fuel level on emissions of regulated and unregulated pollutants from a fleet of gasoline light-duty vehicles

    SciTech Connect (OSTI)

    Karavalakis, Georgios; Durbin, Thomas; Shrivastava, ManishKumar B.; Zheng, Zhongqing; Villella, Phillip M.; Jung, Hee-Jung

    2012-03-30

    The study investigated the impact of ethanol blends on criteria emissions (THC, NMHC, CO, NOx), greenhouse gas (CO2), and a suite of unregulated pollutants in a fleet of gasoline-powered light-duty vehicles. The vehicles ranged in model year from 1984 to 2007 and included one Flexible Fuel Vehicle (FFV). Emission and fuel consumption measurements were performed in duplicate or triplicate over the Federal Test Procedure (FTP) driving cycle using a chassis dynamometer for four fuels in each of seven vehicles. The test fuels included a CARB phase 2 certification fuel with 11% MTBE content, a CARB phase 3 certification fuel with a 5.7% ethanol content, and E10, E20, E50, and E85 fuels. In most cases, THC and NMHC emissions were lower with the ethanol blends, while the use of E85 resulted in increases of THC and NMHC for the FFV. CO emissions were lower with ethanol blends for all vehicles and significantly decreased for earlier model vehicles. Results for NOx emissions were mixed, with some older vehicles showing increases with increasing ethanol level, while other vehicles showed either no impact or a slight, but not statistically significant, decrease. CO2 emissions did not show any significant trends. Fuel economy showed decreasing trends with increasing ethanol content in later model vehicles. There was also a consistent trend of increasing acetaldehyde emissions with increasing ethanol level, but other carbonyls did not show strong trends. The use of E85 resulted in significantly higher formaldehyde and acetaldehyde emissions than the specification fuels or other ethanol blends. BTEX and 1,3-butadiene emissions were lower with ethanol blends compared to the CARB 2 fuel, and were almost undetectable from the E85 fuel. The largest contribution to total carbonyls and other toxics was during the cold-start phase of FTP.

  1. Heavy Duty Fuels

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

    Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel ... Laser enters piston bowl through windows in cylinder wall (not shown) and piston bowl-rim. ...

  2. Heavy Duty Fuels

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

    Fuels - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs Advanced Nuclear Energy

  3. 2013 Vehicle Technologies Market Report

    SciTech Connect (OSTI)

    Davis, Stacy Cagle; Williams, Susan E; Boundy, Robert Gary; Moore, Sheila A

    2014-03-01

    This is the fifth edition of this report, which details the major trends in U.S. light-duty vehicle and medium/heavy truck markets as well as the underlying trends that caused them. This report is supported by the U.S. Department of Energy s (DOE) Vehicle Technologies Office (VTO), and, in accord with its mission, pays special attention to the progress of high-efficiency and alternative-fuel technologies. After opening with a discussion of energy and economics, this report features a section each on the light-duty vehicle and heavy/medium truck markets, and concluding with a section each on technology and policy. The first section on Energy and Economics discusses the role of transportation energy and vehicle markets on a national (and even international) scale. For example, Figures 12 through 14 discuss the connections between global oil prices and U.S. GDP, and Figures 21 and 22 show U.S. employment in the automotive sector. The following section examines Light-Duty Vehicle use, markets, manufacture, and supply chains. Figures 24 through 51 offer snapshots of major light-duty vehicle brands in the U.S. and Figures 56 through 64 examine the performance and efficiency characteristics of vehicles sold. The discussion of Medium and Heavy Trucks offers information on truck sales (Figures 73 through 75) and fuel use (Figures 78 through 81). The Technology section offers information on alternative fuel vehicles and infrastructure (Figures 84 through 95), and the Policy section concludes with information on recent, current, and near-future Federal policies like the Corporate Average Fuel Economy standard (Figures 106 through 110). In total, the information contained in this report is intended to communicate a fairly complete understanding of U.S. highway transportation energy through a series of easily digestible nuggets.

  4. 2012 Vehicle Technologies Market Report

    SciTech Connect (OSTI)

    Davis, Stacy Cagle; Diegel, Susan W; Boundy, Robert Gary

    2013-03-01

    The Oak Ridge National Laboratory s Center for Transportation Analysis developed and published the first Vehicle Technologies Market Report in 2008. Three editions of the report have been published since that time. This 2012 report details the major trends in U.S. light vehicle and medium/heavy truck markets as well as the underlying trends that caused them. The opening section on Energy and Economics discusses the role of transportation energy and vehicle markets on a national scale. The following section examines light-duty vehicle use, markets, manufacture, and supply chains. The discussion of medium and heavy trucks offers information on truck sales and fuel use. The technology section offers information on alternative fuel vehicles and infrastructure, and the policy section concludes with information on recent, current, and near-future Federal policies like the Corporate Average Fuel Economy standards.

  5. Vehicle Technologies Office Merit Review 2015: High Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines

    Broader source: Energy.gov [DOE]

    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 clean...

  6. FY2009 Annual Progress Report for Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program

    SciTech Connect (OSTI)

    none,

    2010-02-19

    Annual Progress Report for fiscal year 2009 for the Advanced Vehicle Technology Analysis and Evaluation (AVTAE) team activities

  7. 2008 Annual Progress Report - Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program

    SciTech Connect (OSTI)

    none,

    2009-02-24

    Annual Progress Report for fiscal year 2008 for the Advanced Vehicle Technology Analysis and Evaluation (AVTAE) team activities

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

    SciTech Connect (OSTI)

    1997-07-01

    The purpose of the Heavy Vehicle Propulsion System Materials Program is the development of materials: ceramics, intermetallics, metal alloys, and metal and ceramic coatings, to support the dieselization of class 1-3 trucks to realize a 35% fuel-economy improvement over current gasoline-fueled trucks and to support commercialization of fuel-flexible LE-55 low-emissions, high-efficiency diesel engines for class 7-8 trucks. The design of advanced components for high-efficiency diesel engines has, in some cases, pushed the performance envelope for materials of construction past the point of reliable operation. Higher mechanical and tribological stresses and higher temperatures of advanced designs limit the engine designers; advanced materials allow the design of components that may operate reliably at higher stresses and temperatures, thus enabling more efficient engine designs. Advanced materials also offer the opportunity to improve the emissions, NVH, and performance of diesel engines for pickup trucks, vans, and sport utility vehicles. The principal areas of research are: (1) cost effective high performance materials and processing; (2) advanced manufacturing technology; (3) testing and characterization; and (4) materials and testing standards.

  9. Compressed natural gas fueled vehicles: The Houston experience

    SciTech Connect (OSTI)

    Not Available

    1993-12-31

    The report describes the experience of the City of Houston in defining the compressed natural gas fueled vehicle research scope and issues. It details the ways in which the project met initial expectations, and how the project scope, focus, and duration were adjusted in response to unanticipated results. It provides examples of real world successes and failures in efforts to commercialize basic research in adapting a proven technology (natural gas) to a noncommercially proven application (vehicles). Phase one of the demonstration study investigates, develops, documents, and disseminates information regarding the economic, operational, and environmental implications of utilizing compressed natural gas (CNG) in various truck fueling applications. The four (4) truck classes investigated are light duty gasoline trucks, medium duty gasoline trucks, medium duty diesel trucks and heavy duty diesel trucks. The project researches aftermarket CNG conversions for the first three vehicle classes and original equipment manufactured (OEM) CNG vehicles for light duty gasoline and heavy duty diesel classes. In phase two of the demonstration project, critical issues are identified and assessed with respect to implementing use of CNG fueled vehicles in a large vehicle fleet. These issues include defining changes in local, state, and industry CNG fueled vehicle related codes and standards; addressing vehicle fuel storage limitations; using standardized vehicle emission testing procedures and results; and resolving CNG refueling infrastructure implementation issues and related cost factors. The report identifies which CNG vehicle fueling options were tried and failed and which were tried and succeeded, with and without modifications. The conclusions include a caution regarding overly optimistic assessments of CNG vehicle technology at the initiation of the project.

  10. FY2014 Vehicle and Systems Simulation and Testing Annual Progress Report

    SciTech Connect (OSTI)

    2015-03-01

    The Vehicle and Systems Simulation and Testing research and development (R&D) subprogram within the DOE Vehicle Technologies Office (VTO) provides support and guidance for many cutting-edge automotive technologies under development. Research focuses on addressing critical barriers to advancing light-, medium-, and heavy-duty vehicle systems to help maximize the number of electric miles driven and increase the energy efficiency of transportation vehicles.

  11. Model curriculum outline for Alternatively Fueled Vehicle (AFV) automotive technician training in light and medium duty CNG and LPG

    SciTech Connect (OSTI)

    1997-04-01

    This model curriculum outline was developed using a turbo-DACUM (Developing a Curriculum) process which utilizes practicing experts to undertake a comprehensive job and task analysis. The job and task analysis serves to establish current baseline data accurately and to improve both the process and the product of the job through constant and continuous improvement of training. The DACUM process is based on the following assumptions: (1) Expert workers are the best source for task analysis. (2) Any occupation can be described effectively in terms of tasks. (3) All tasks imply knowledge, skills, and attitudes/values. A DACUM panel, comprised of six experienced and knowledgeable technicians who are presently working in the field, was given an orientation to the DACUM process. The panel then identified, verified, and sequenced all the necessary job duty areas and tasks. The broad duty categories were rated according to relative importance and assigned percentage ratings in priority order. The panel then rated every task for each of the duties on a scale of 1 to 3. A rating of 3 indicates an {open_quotes}essential{close_quotes} task, a rating of 2 indicates an {open_quotes}important{close_quotes} task, and a rating of 1 indicates a {open_quotes}desirable{close_quotes} task.

  12. Vehicle Technologies Office- AVTA: All Electric USPS Long Life Vehicle Conversions

    Broader source: Energy.gov [DOE]

    The following set of reports (part of the medium and heavy-duty truck data) describes performance data collected from all-electric conversions of U.S. Postal Service (USPS) Long-Life Vehicles. This research was conducted by Idaho National Laboratory, which has several additional reports available.

  13. Vehicle Technologies Office Merit Review 2015: Multi-Speed Transmission for Commercial Delivery Medium Duty Plug-In Electric Drive Vehicles

    Broader source: Energy.gov [DOE]

    Presentation given by Eaton at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about multi-speed transmission for commercial...

  14. Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst: Final Report, 24 February 2004 -- 23 February 2006

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

    Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst Final Report February 24, 2004 - February 23, 2006 T. Reppert Mack Trucks, Inc. Allentown, Pennsylvania J. Chiu Southwest Research Institute San Antonio, Texas Subcontract Report NREL/SR-540-38222 September 2005 Heavy-Duty Waste Hauler with Chemically Correct Natural Gas Engine Diluted with EGR and Using a Three-Way Catalyst Final Report February 24, 2004 - February 23, 2006 T.

  15. Vehicle Technologies Office Merit Review 2014: SCAQMD: Plug-In Hybrid Electric Medium-Duty Commercial Fleet Demonstration and Evaluation

    Office of Energy Efficiency and Renewable Energy (EERE)

    Presentation given by South Coast Air Quality Management District at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about...

  16. Vehicle Technologies Office Merit Review 2014: High Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines

    Broader source: Energy.gov [DOE]

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

  17. FY2012 Annual Progress Report for Vehicle and Systems Simulation and Testing

    SciTech Connect (OSTI)

    Slezak, Lee [Energy Efficiency and Renewable Energy (EERE), Washington, DC (United States)

    2013-03-29

    Annual progress report that evaluates the technologies and performance characteristics of advanced automotive powertrain components and subsystems in an integrated vehicle systems context. These evaluations address light-, medium-, and heavy-duty vehicle platforms. This work is directed toward evaluating and verifying the targets of the VTO R&D teams and to providing guidance in establishing roadmaps for achievement of these goals.

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

    SciTech Connect (OSTI)

    Jeff Wishart; Matthew Shirk

    2012-12-01

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

  19. Heavy and Overweight Vehicle Brake Testing: Five-Axle Combination Tractor-Flatbed Final Report

    SciTech Connect (OSTI)

    Lascurain, Mary Beth; Capps, Gary J; Franzese, Oscar

    2013-10-01

    The Federal Motor Carrier Safety Administration, in coordination with the Federal Highway Administration, sponsored the Heavy and Overweight Vehicle Brake Testing (HOVBT) program in order to provide information about the effect of gross vehicle weight (GVW) on braking performance. Because the Federal Motor Carrier Safety Regulations limit the number of braking system defects that may exist for a vehicle to be allowed to operate on the roadways, the examination of the effect of brake defects on brake performance for increased loads is also relevant. The HOVBT program seeks to provide relevant information to policy makers responsible for establishing load limits, beginning with providing test data for a combination tractor/trailer. This testing was conducted on a five-axle combination vehicle with tractor brakes meeting the Reduced Stopping Distance requirement rulemaking. This report provides a summary of the testing activities, the results of various analyses of the data, and recommendations for future research. Following a complete brake rebuild, instrumentation, and brake burnish, stopping tests were performed from 20 and 40 mph with various brake application pressures (15 psi, 25 psi, 35 psi, 45 psi, 55 psi, and full system pressure). These tests were conducted for various brake conditions at the following GVWs: 60,000, 80,000, 91,000, 97,000, 106,000, and 116,000 lb. The 80,000-lb GVWs included both balanced and unbalanced loads. The condition of the braking system was also varied. To introduce these defects, brakes (none, forward drive axle, or rear trailer axle) were made inoperative. In addition to the stopping tests, performance-based brake tests were conducted for the various loading and brake conditions. Analysis of the stopping test data showed the stopping distance to increase with load (as expected) and also showed that more braking force was generated by the drive axle brakes than the trailer axle brakes. The constant-pressure stopping test data revealed a linear relationship between brake application pressure and was used to develop an algorithm to normalize stopping data for weight and initial speed.

  20. Characterization of polycyclic aromatic hydrocarbons in motor vehicle fuels and exhaust emissions

    SciTech Connect (OSTI)

    Marr, L.C.; Kirchstetter, T.W.; Harley, R.A.; Hammond, S.K.; Miguel, A.H.; Hering, S.V.

    1999-09-15

    Motor vehicles are a significant source of polycyclic aromatic hydrocarbon (PAH) emissions. Improved understanding of the relationship between fuel composition and PAH emissions is needed to determine whether fuel reformulation is a viable approach for reducing PAH emissions. PAH concentrations were quantified in gasoline and diesel fuel samples collected in summer 1997 in northern California. Naphthalene was the predominant PAH in both fuels, with concentrations of up to 2,600 mg L{sup {minus}1} in gasoline and 1,600 mg L{sup {minus}1} in diesel fuel. Particle-phase PAH size distributions and exhaust emission factors were measured in two bores of a roadway tunnel. Emission factors were determined separately for light-duty vehicles and for heavy-duty diesel trucks, based on measurements of PAHs, CO, and CO{sub 2}. Particle-phase emission factors, expressed per unit mass of fuel burned, ranged up to 21 {micro}g kg{sup {minus}1} for benzo[ghi]perylene for light-duty vehicles and up to {approximately} 1,000 {micro}g kg{sup {minus}1} for pyrene for heavy-duty diesel vehicles. Light-duty vehicles were found to be a significant source of heavier (four- and five-ring) PAHs, whereas heavy-duty diesel engines were the dominant source of three-ring PAHs, such as fluoranthene and pyrene. While no correlation between heavy-duty diesel truck PAH emission factors and PAH concentrations in diesel fuel was found, light-duty vehicle PAH emission factors were found to be correlated with PAH concentrations in gasoline, suggesting that gasoline reformulation may be effective in reducing PAH emissions from motor vehicles.

  1. Particle Number & Particulate Mass Emissions Measurements on a 'Euro VI' Heavy-duty Engine using the PMP Methodologies

    Broader source: Energy.gov [DOE]

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

  2. A New Active DPF System for "Stop and Go" Duty-Cycle Vehicles | Department

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

    of Energy 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Aaqius and Aaqius PDF icon 2004_deer_seguelong1.pdf More Documents & Publications The ExoClean Filter System for Stop and Go Vehicles Combination of Diesel fuel system architectures and Ceria-based fuel-borne catalysts for improvement and simplification of the Diesel Particulate Filter System in serial applications Diesel Particulate Filters: Market Introducution in Europe

  3. Marketing Light-Duty Diesels to U.S. Consumers

    Broader source: Energy.gov [DOE]

    Overview of Volkswagen's approach in introducing light-duty diesels to the U.S. passenger vehicle market.

  4. Integrated Powertrain and Vehicle Technologies for Fuel Efficiency...

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

    Heavy-Duty Engine Technology for High Thermal Efficiency at EPA 2010 Emissions Regulations Navistar-Driving efficiency with integrated technology High Fuel Economy Heavy-Duty Truck ...

  5. Study Pinpoints Sources of Polluting Vehicle Emissions (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    Unburned lubricant produces 60%-90% of organic carbon emissions. While diesel fuel is often viewed as the most polluting of conventional petroleum-based fuels, emissions from gasoline engines can more significantly degrade air quality. Gasoline exhaust is at least as toxic on a per-unit-mass basis as diesel exhaust, and contributes up to 10 times more particulate matter (PM) to the emission inventory. Because emissions from both fuels can gravely impact health and the environment, researchers at the National Renewable Energy Laboratory (NREL) launched a study to understand how these pollutants relate to fuels, lubricants, and engine operating conditions. NREL's Collaborative Lubricating Oil Study on Emissions (CLOSE) project tested a variety of vehicles over different drive cycles at moderate (72 F) and cold (20 F) temperatures. Testing included: (1) Normal and high-emitting light-, medium-, and heavy-duty vehicles; (2) Gasoline, diesel, and compressed natural gas (CNG)-powered vehicles; (3) New and aged lubricants representative of those currently on the market; and (4) Gasoline containing no ethanol, E10, Texas-mandated low-emission diesel fuel, biodiesel, and CNG. The study confirmed that normally functioning emission control systems for gasoline light-duty vehicles are very effective at controlling organic carbon (OC) emissions. Diesel vehicles without aftertreatment emission control systems exhibited OC emissions approximately one order of magnitude higher than gasoline vehicles. High-emitter gasoline vehicles produced OC emissions similar to diesel vehicles without exhaust aftertreatment emission control. Exhaust catalysts combusted or converted more than 75% of lubricating oil components in the exhaust gases. Unburned crankcase lubricant made up 60%-90% of OC emissions. This OC represented 20%-50% of emitted PM in all but two of the vehicles. Three-way catalysts proved effective at reducing most of the OC. With high PM emitters or vehicles with deteriorated aftertreatment, high-molecular-weight fuel components and unburned lubricant were emitted at higher rates than in vehicles in good repair, with functioning emissions systems. Light-duty gasoline, medium-duty diesel, and heavy-duty natural gas vehicles produced more particles with fresh oil than with aged oil. The opposite trend was observed in light- and medium-duty high PM emitters. This effect was not readily apparent with heavy-duty diesel vehicles, perhaps because the lubricant represented a much smaller fraction of the total PM in those trucks.

  6. The new Mercedes-Benz OM 904 LA light heavy-duty diesel engine for class 6 trucks

    SciTech Connect (OSTI)

    Schittler, M.; Bergmann, H.; Flathmann, K.

    1996-09-01

    As part of a comprehensive strategic product initiative the most important commercial vehicle manufacturer--Mercedes-Benz AG--is step by step renewing its entire product range. This primarily refers to the heart of the vehicles--the engine. After the OM 457 LA, which was developed together with DDC for the special American market demands and which is produced and sold in the US by DDC under the label Series 55, has had its premiere in Freightliner`s Century Class, the OM 904 LA will now follow in the light commercial vehicle class. This engine has a completely new concept of a direct-injection, highly sophisticated turbocharged four-cylinder in-line engine with air-to-air intercooler, whose main characteristics can be outlined by the terms multi-valve technology, high-pressure injection via unit pumps and electronic engine control. This small engine has several interesting features, which--up to now--were only known from class 8 engines. In addition to fulfilling increased customer demands with regard to long service life, easy maintenance, reliability and economy, great attention was paid during the design of the engine to not only fulfill the global regulations, but also account for sufficient potential to comply with further aggravations to be expected. The most important design features and the attained engine ratings are indicated and explained in detail.

  7. Transportation Energy Futures Series. Non-Cost Barriers to Consumer Adoption of New Light-Duty Vehicle Technologies

    SciTech Connect (OSTI)

    Stephens, Thomas

    2013-03-01

    Consumer preferences are key to the adoption of new vehicle technologies. Barriers to consumer adoption include price and other obstacles, such as limited driving range and charging infrastructure; unfamiliarity with the technology and uncertainty about direct benefits; limited makes and models with the technology; reputation or perception of the technology; standardization issues; and regulations. For each of these non-cost barriers, this report estimates an effective cost and summarizes underlying influences on consumer preferences, approximate magnitude and relative severity, and assesses potential actions, based on a comprehensive literature review. While the report concludes that non-cost barriers are significant, effective cost and potential market share are very uncertain. Policies and programs including opportunities for drivers to test drive advanced vehicles, general public outreach and information programs, incentives for providing charging and fueling infrastructure, and development of technology standards were examined for their ability to address barriers, but little quantitative data exists on the effectiveness of these measures. This is one in a series of reports produced as a result of the Transportation Energy Futures project, a Department of Energy-sponsored multi-agency effort to pinpoint underexplored strategies for reducing GHGs and petroleum dependence related to transportation. View all reports on the TEF Web page, http://www.eere.energy.gov/analysis/transportationenergyfutures/index.html.

  8. Transportation Energy Futures Series: Non-Cost Barriers to Consumer Adoption of New Light-Duty Vehicle Technologies

    SciTech Connect (OSTI)

    Stephens, T.

    2013-03-01

    Consumer preferences are key to the adoption of new vehicle technologies. Barriers to consumer adoption include price and other obstacles, such as limited driving range and charging infrastructure; unfamiliarity with the technology and uncertainty about direct benefits; limited makes and models with the technology; reputation or perception of the technology; standardization issues; and regulations. For each of these non-cost barriers, this report estimates an effective cost and summarizes underlying influences on consumer preferences, approximate magnitude and relative severity, and assesses potential actions, based on a comprehensive literature review. While the report concludes that non-cost barriers are significant, effective cost and potential market share are very uncertain. Policies and programs including opportunities for drivers to test drive advanced vehicles, general public outreach and information programs, incentives for providing charging and fueling infrastructure, and development of technology standards were examined for their ability to address barriers, but little quantitative data exists on the effectiveness of these measures. This is one in a series of reports produced as a result of the Transportation Energy Futures project, a Department of Energy-sponsored multi-agency effort to pinpoint underexplored strategies for reducing GHGs and petroleum dependence related to transportation.

  9. Vehicle Technologies Office: 2008 Advanced Vehicle Technology Analysis and

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

    Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report | Department of Energy Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report Vehicle Technologies Office: 2008 Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report PDF icon 2008_avtae_hvso.pdf More Documents & Publications Vehicle Technologies

  10. Fact #626: June 7, 2010 Fuel Economy for Light and Heavy Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE)

    In the next few years it is expected that fuel economy standards will be imposed on new medium and heavy trucks sold in the U.S. Currently, the estimates of the medium and heavy truck population...

  11. Experiences with CNG and LPG operated heavy duty vehicles with emphasis on US HD diesel emission standards

    SciTech Connect (OSTI)

    VanDerWeide, J.; Seppen, J.J.; VanLing, J.A.N.; Dekker, H.J

    1988-01-01

    The lengthy experience of TNO with the application of gaseous fuels in engines is discussed. The emphasis is on emissions and efficiency of optimal gaseous fuelled engines in comparison to systems with partial diesel fuel replacement. In spark ignition operation (100% diesel fuel replacement) lean-burn and stoichiometric (electronic control and 3-way catalyst) concepts have been developed. In the optimization mathematical modelling of combustion and flow phenomena is used in combination with engine test bed work. Essential new hardware including micro-electronic control systems is developed.

  12. Development of a direct-injected natural gas engine system for heavy-duty vehicles: Final report phase 2

    SciTech Connect (OSTI)

    Cox, G.B.; DelVecchio, K.A.; Hays, W.J.; Hiltner, J.D.; Nagaraj, R.; Emmer, C.

    2000-03-02

    This report summarizes the results of Phase 2 of this contract. The authors completed four tasks under this phase of the subcontract. (1) They developed a computational fluid dynamics (CFD) model of a 3500 direct injected natural gas (DING) engine gas injection/combustion system and used it to identify DING ignition/combustion system improvements. The results were a 20% improvement in efficiency compared to Phase 1 testing. (2) The authors designed and procured the components for a 3126 DING engine (300 hp) and finished assembling it. During preliminary testing, the engine ran successfully at low loads for approximately 2 hours before injector tip and check failures terminated the test. The problems are solvable; however, this phase of the program was terminated. (3) They developed a Decision & Risk Analysis model to compare DING engine technology with various other engine technologies in a number of commercial applications. The model shows the most likely commercial applications for DING technology and can also be used to identify the sensitivity of variables that impact commercial viability. (4) MVE, Inc., completed a preliminary design concept study that examines the major design issues involved in making a reliable and durable 3,000 psi LNG pump. A primary concern is the life of pump seals and piston rings. Plans for the next phase of this program (Phase 3) have been put on indefinite hold. Caterpillar has decided not to fund further DING work at this time due to limited current market potential for the DING engine. However, based on results from this program, the authors believe that DI natural gas technology is viable for allowing a natural gas-fueled engine to achieve diesel power density and thermal efficiency for both the near and long terms.

  13. Vehicle Technologies Office: 2012 Lightweight Materials R&D Annual Progress

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

    Report | Department of Energy Lightweight Materials R&D Annual Progress Report Vehicle Technologies Office: 2012 Lightweight Materials R&D Annual Progress Report As part of the U.S. Department of Energys (DOEs) Vehicle Technologies Office (VTO), the Lightweight Materials activity (LM) focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such

  14. Vehicle Technologies Office: 2013 Lightweight Materials R&D Annual Progress

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

    Report | Department of Energy Lightweight Materials R&D Annual Progress Report Vehicle Technologies Office: 2013 Lightweight Materials R&D Annual Progress Report As part of the U.S. Department of Energy's (DOE's) Vehicle Technologies Program (VTO), the Lightweight Materials (LM) activity focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such

  15. 2011 Vehicle Technologies Market Report

    SciTech Connect (OSTI)

    Davis, Stacy Cagle; Boundy, Robert Gary; Diegel, Susan W

    2012-02-01

    This report details the major trends in U.S. light-duty vehicle and medium/heavy truck markets as well as the underlying trends that caused them. This report is supported by the U.S. Department of Energy s (DOE) Vehicle Technologies Program (VTP), and, in accord with its mission, pays special attention to the progress of high-efficiency and alternative-fuel technologies. This third edition since this report was started in 2008 offers several marked improvements relative to its predecessors. Most significantly, where earlier editions of this report focused on supplying information through an examination of market drivers, new vehicle trends, and supplier data, this edition uses a different structure. After opening with a discussion of energy and economics, this report features a section each on the light-duty vehicle and heavy/medium truck markets, and concluding with a section each on technology and policy. In addition to making this sectional re-alignment, this year s edition of the report also takes a different approach to communicating information. While previous editions relied heavily on text accompanied by auxiliary figures, this third edition relies primarily on charts and graphs to communicate trends. Any accompanying text serves to introduce the trends communication by the graphic and highlight any particularly salient observations. The opening section on Energy and Economics discusses the role of transportation energy and vehicle markets on a national (and even international) scale. For example, Figures 11 through 13 discuss the connections between global oil prices and U.S. GDP, and Figures 20 and 21 show U.S. employment in the automotive sector. The following section examines Light-Duty Vehicle use, markets, manufacture, and supply chains. Figures 26 through 33 offer snapshots of major light-duty vehicle brands in the U.S. and Figures 38 through 43 examine the performance and efficiency characteristics of vehicles sold. The discussion of Medium and Heavy Trucks offers information on truck sales (Figures 58 through 61) and fuel use (Figures 64 through 66). The Technology section offers information on alternative fuel vehicles and infrastructure (Figures 68 through 77), and the Policy section concludes with information on recent, current, and near-future Federal policies like the Cash for Clunkers program (Figures 87 and 88) and the Corporate Automotive Fuel Economy standard (Figures 90 through 99) and. In total, the information contained in this report is intended to communicate a fairly complete understanding of U.S. highway transportation energy through a series of easily digestible nuggets.

  16. Global Assessment of Hydrogen Technologies - Task 2 Report Comparison of Performance and Emissions from Near-Term Hydrogen Fueled Light Duty Vehicles

    SciTech Connect (OSTI)

    Fouad, Fouad H.; Peters, Robert W.; Sisiopiku, Virginia P.; Sullivan Andrew J.; Ng, Henry K.; Waller, Thomas

    2007-12-01

    An investigation was conducted on the emissions and efficiency from hydrogen blended compressed natural gas (CNG) in light duty vehicles. The different blends used in this investigation were 0%, 15%, 30%, 50%, 80%, 95%, and ~100% hydrogen, the remainder being compressed natural gas. The blends were tested using a Ford F-150 and a Chevrolet Silverado truck supplied by Arizona Public Services. Tests on emissions were performed using four different driving condition tests. Previous investigation by Don Karner and James Frankfort on a similar Ford F-150 using a 30% hydrogen blend showed that there was substantial reduction when compared to gasoline in carbon monoxide (CO), nitrogen oxide (NOx), and carbon dioxide (CO2) emissions while the reduction in hydrocarbon (HC) emissions was minimal. This investigation was performed using different blends of CNG and hydrogen to evaluate the emissions reducing capabilities associated with the use of the different fuel blends. The results were then tested statistically to confirm or reject the hypotheses on the emission reduction capabilities. Statistically analysis was performed on the test results to determine whether hydrogen concentration in the HCNG had any effect on the emissions and the fuel efficiency. It was found that emissions from hydrogen blended compressed natural gas were a function of driving condition employed. Emissions were found to be dependent on the concentration of hydrogen in the compressed natural gas fuel blend.

  17. Integrated Testing, Simulation and Analysis of Electric Drive Options for Medium-Duty Parcel Delivery Vehicles: Preprint

    SciTech Connect (OSTI)

    Ramroth, L. A.; Gonder, J.; Brooker, A.

    2012-09-01

    The National Renewable Energy Laboratory verified diesel-conventional and diesel-hybrid parcel delivery vehicle models to evaluate petroleum reduction and cost implications of plug-in hybrid gasoline and diesel variants. These variants are run on a field-data-derived design matrix to analyze the effects of drive cycle, distance, battery replacements, battery capacity, and motor power on fuel consumption and lifetime cost. Two cost scenarios using fuel prices corresponding to forecasted highs for 2011 and 2030 and battery costs per kilowatt-hour representing current and long-term targets compare plug-in hybrid lifetime costs with diesel conventional lifetime costs. Under a future cost scenario of $100/kWh battery energy and $5/gal fuel, plug-in hybrids are cost effective. Assuming a current cost of $700/kWh and $3/gal fuel, they rarely recoup the additional motor and battery cost. The results highlight the importance of understanding the application's drive cycle, daily driving distance, and kinetic intensity. For instances in the current-cost scenario where the additional plug-in hybrid cost is regained in fuel savings, the combination of kinetic intensity and daily distance travelled does not coincide with the usage patterns observed in the field data. If the usage patterns were adjusted, the hybrids could become cost effective.

  18. Simulation of high-altitude effects on heavy-duty diesel emissions. Final report, 31 October 1988-30 September 1989

    SciTech Connect (OSTI)

    Human, D.M.; Ullman, T.L.

    1989-09-01

    Exhaust emissions from heavy-duty diesel engines operating at high altitude are of concern. EPA and Colorado Department of Health sponsored the project to characterize regulated and selected unregulated emissions from a naturally-aspirated Caterpillar 3208 and a turbocharged Cummins NTC-350 diesel engine at both low and simulated high altitude conditions (about 6000 ft). Emissions testing was performed over cold- and hot-start transient cycles as well as selected steady-state modes. Additionally, the turbocharged engine was operated with mechanically variable and fixed retarded fuel injection timing to represent normal and malfunction conditions, respectively. High altitude operation generally reduced NOx emissions approximately 10% for both engines. Average composite transient emissions of HC, CO, particulate matter, and aldehydes measured at high altitude for the naturally-aspirated engine were 2 to 4 times the levels noted for low altitude conditions. The same emission constituents from the turbocharged engine at high altitude with normal timing were 1.2 to 2 times the low altitude levels, but were 2 to 4 times the low altitude levels with malfunction timing.

  19. Demonstration of Air-Power-Assist Engine Technology for Clean Combustion and Direct Energy Recovery in Heavy Duty Application

    SciTech Connect (OSTI)

    Hyungsuk Kang; Chun Tai

    2010-05-01

    The first phase of the project consists of four months of applied research, starting from September 1, 2005 and was completed by December 31, 2005. During this time, the project team heavily relied on highly detailed numerical modeling techniques to evaluate the feasibility of the APA technology. Specifically, (i) A GT-Power{sup TM}engine simulation model was constructed to predict engine efficiency at various operating conditions. Efficiency was defined based on the second-law thermodynamic availability. (ii) The engine efficiency map generated by the engine simulation was then fed into a simplified vehicle model, which was constructed in the Matlab/Simulink environment, to predict fuel consumption of a refuse truck on a simple collection cycle. (iii) Design and analysis work supporting the concept of retrofitting an existing Sturman Industries Hydraulic Valve Actuation (HVA) system with the modifications that are required to run the HVA system with Air Power Assist functionality. A Matlab/Simulink model was used to calculate the dynamic response of the HVA system. Computer aided design (CAD) was done in Solidworks for mechanical design and hydraulic layout. At the end of Phase I, 11% fuel economy improvement was predicted. During Phase II, the engine simulation group completed the engine mapping work. The air handling group made substantial progress in identifying suppliers and conducting 3D modelling design. Sturman Industries completed design modification of the HVA system, which was reviewed and accepted by Volvo Powertrain. In Phase II, the possibility of 15% fuel economy improvement was shown with new EGR cooler design by reducing EGR cooler outlet temperature with APA engine technology from Air Handling Group. In addition, Vehicle Simulation with APA technology estimated 4 -21% fuel economy improvement over a wide range of driving cycles. During Phase III, the engine experimental setup was initiated at VPTNA, Hagerstown, MD. Air Handling system and HVA system were delivered to VPTNA and then assembly of APA engine was completed by June 2007. Functional testing of APA engine was performed and AC and AM modes testing were completed by October 2007. After completing testing, data analysis and post processing were performed. Especially, the models were instrumental in identifying some of the key issues with the experimental HVA system. Based upon the available engine test results during AC and AM modes, the projected fuel economy improvement over the NY composite cycle is 14.7%. This is close to but slightly lower than the originally estimated 18% from ADVISOR simulation. The APA project group demonstrated the concept of APA technology by using simulation and experimental testing. However, there are still exists of technical challenges to meet the original expectation of APA technology. The enabling technology of this concept, i.e. a fully flexible valve actuation system that can handle high back pressure from the exhaust manifold is identified as one of the major technical challenges for realizing the APA concept.

  20. Tier 2 Useful Life (120,000 miles) Exhaust Emission Results for a NOx Adsorber and Diesel Particle Filter Equipped Light-Duty Diesel Vehicle

    SciTech Connect (OSTI)

    Tatur, M.; Tomazic, D.; Thornton, M.; Orban, J.; Slone, E.

    2006-05-01

    Investigates the emission control system performance and system desulfurization effects on regulated and unregulated emissions in a light-duty diesel engine.

  1. Flex Fuel Vehicle Systems | Department of Energy

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

    ft_13_yilmaz.pdf More Documents & Publications Advanced Combustion Concepts - Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles Advanced Combustion Concepts - Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles Vehicle Technologies Office Merit Review 2014: Advanced Combustion Concepts - Enabling Systems and Solutions (ACCESS) for High Efficiency Light Duty Vehicles

  2. Natural gas vehicles : Status, barriers, and opportunities.

    SciTech Connect (OSTI)

    Rood Werpy, M.; Santini, D.; Burnham, A.; Mintz, M.; Energy Systems

    2010-11-29

    In the United States, recent shale gas discoveries have generated renewed interest in using natural gas as a vehicular fuel, primarily in fleet applications, while outside the United States, natural gas vehicle use has expanded significantly in the past decade. In this report for the U.S. Department of Energy's Clean Cities Program - a public-private partnership that advances the energy, economic, and environmental security of the U.S. by supporting local decisions that reduce petroleum use in the transportation sector - we have examined the state of natural gas vehicle technology, current market status, energy and environmental benefits, implications regarding advancements in European natural gas vehicle technologies, research and development efforts, and current market barriers and opportunities for greater market penetration. The authors contend that commercial intracity trucks are a prime area for advancement of this fuel. Therefore, we examined an aggressive future market penetration of natural gas heavy-duty vehicles that could be seen as a long-term goal. Under this scenario using Energy Information Administration projections and GREET life-cycle modeling of U.S. on-road heavy-duty use, natural gas vehicles would reduce petroleum consumption by approximately 1.2 million barrels of oil per day, while another 400,000 barrels of oil per day reduction could be achieved with significant use of natural gas off-road vehicles. This scenario would reduce daily oil consumption in the United States by about 8%.

  3. Heavy Truck Engine Program

    SciTech Connect (OSTI)

    Nelson, Christopher

    2009-01-08

    The Heavy Duty Truck Engine Program at Cummins embodied three significant development phases. All phases of work strove to demonstrate a high level of diesel engine efficiency in the face of increasingly stringent emission requirements. Concurrently, aftertreatment system development and refinement was pursued in support of these efficiency demonstrations. The program's first phase focused on the demonstration in-vehicle of a high level of heavy duty diesel engine efficiency (45% Brake Thermal Efficiency) at a typical cruise condition while achieving composite emissions results which met the 2004 U.S. EPA legislated standards. With a combination of engine combustion calibration tuning and the development and application of Urea-based SCR and particulate aftertreatment, these demonstrations were successfully performed by Q4 of 2002. The second phase of the program directed efforts towards an in-vehicle demonstration of an engine system capable of meeting 2007 U.S. EPA legislated emissions requirements while achieving 45% Brake Thermal Efficiency at cruise conditions. Through further combustion optimization, the refinement of Cummins Cooled EGR architecture, the application of a high pressure common rail fuel system and the incorporation of optimized engine parasitics, Cummins Inc. successfully demonstrated these deliverables in Q2 of 2004. The program's final phase set a stretch goal of demonstrating 50% Brake Thermal Efficiency from a heavy duty diesel engine system capable of meeting 2010 U.S. EPA legislated emissions requirements. Cummins chose to pursue this goal through further combustion development and refinement of the Cooled EGR system architecture and also applied a Rankine cycle Waste Heat Recovery technique to convert otherwise wasted thermal energy to useful power. The engine and heat recovery system was demonstrated to achieve 50% Brake Thermal Efficiency while operating at a torque peak condition in second quarter, 2006. The 50% efficient engine system was capable of meeting 2010 emissions requirements through the application of NOx and particulate matter reduction techniques proven earlier in the program.

  4. DOE Targets for Onboard Hydrogen Storage Systems for Light-Duty...

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

    Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles DOE Targets for Onboard Hydrogen Storage Systems for Light-Duty Vehicles This table lists the technical targets ...

  5. Vehicle Technologies Office: 2010 Lightweight Materials R&D Annual Progress

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

    Report | Department of Energy Lightweight Materials R&D Annual Progress Report Vehicle Technologies Office: 2010 Lightweight Materials R&D Annual Progress Report The Lightweight Materials activity (LM) focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty vehicle weight without compromising other attributes such as safety, performance,recyclability, and cost. PDF icon

  6. FY2011 Annual Progress Report for Vehicle and Systems Simulation and Testing

    SciTech Connect (OSTI)

    2012-01-15

    The VSST team's mission is to evaluate the technologies and performance characteristics of advanced automotive powertrain components and subsystems in an integrated vehicle systems context. These evaluations address light-, medium-, and heavy-duty vehicle platforms. This work is directed toward evaluating and verifying the targets of the VTP R&D teams and to providing guidance in establishing roadmaps for achievement of these goals.

  7. Light Duty Efficient, Clean Combustion

    SciTech Connect (OSTI)

    Stanton, Donald W.

    2011-06-03

    Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy’s Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of our objectives were met with fuel efficiency improvement targets exceeded.

  8. High Efficiency Clean Combustion in Multi-Cylinder Light-Duty...

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

    11 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit ... Combustion in Multi-Cylinder Light-Duty Engines Vehicle Technologies Office Merit Review ...

  9. Trends in on-road vehicle emissions of ammonia

    SciTech Connect (OSTI)

    Kean, A.J.; Littlejohn, D.; Ban-Weiss, G.A.; Harley, R.A.; Kirchstetter, T.W.; Lunden, M. M.

    2008-07-15

    Motor vehicle emissions of ammonia have been measured at a California highway tunnel in the San Francisco Bay area. Between 1999 and 2006, light-duty vehicle ammonia emissions decreased by 38 {+-} 6%, from 640 {+-} 40 to 400 {+-} 20 mg kg{sup -1}. High time resolution measurements of ammonia made in summer 2001 at the same location indicate a minimum in ammonia emissions correlated with slower-speed driving conditions. Variations in ammonia emission rates track changes in carbon monoxide more closely than changes in nitrogen oxides, especially during later evening hours when traffic speeds are highest. Analysis of remote sensing data of Burgard et al. (Environ Sci. Technol. 2006, 40, 7018-7022) indicates relationships between ammonia and vehicle model year, nitrogen oxides, and carbon monoxide. Ammonia emission rates from diesel trucks were difficult to measure in the tunnel setting due to the large contribution to ammonia concentrations in a mixed-traffic bore that were assigned to light-duty vehicle emissions. Nevertheless, it is clear that heavy-duty diesel trucks are a minor source of ammonia emissions compared to light-duty gasoline vehicles.

  10. Lng vehicle technology, economics, and safety assessment. Final report, April 1991-June 1993

    SciTech Connect (OSTI)

    Powars, C.A.; Moyer, C.B.; Lowell, D.D.

    1994-02-01

    Liquid natural gas (LNG) is an attractive transportation fuel because of its high heating value and energy density (i.e. Btu/lb and Btu/gal), clean burning characteristics, relatively low cost ($/Btu), and domestic availability. This research evaluated LNG vehicle and refueling system technology, economics, and safety. Prior and current LNG vehicle projects were studied to identify needed technology improvements. Life-cycle cost analyses considered various LNG vehicle and fuel supply options. Safety records, standards, and analysis methods were reviewed. The LNG market niche is centrally fueled heavy-duty fleet vehicles with high fuel consumption. For these applications, fuel cost savings can amortize equipment capital costs.

  11. Overcoming the Range Limitation of Medium-Duty Battery Electric...

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

    saecomveh.saejournals.org Overcoming the Range Limitation of Medium-Duty Battery Electric Vehicles through the use of Hydrogen Fuel-Cells Eric Wood, Lijuan Wang, Jeffrey ...

  12. Light-Duty Reactivity Controlled Compression Ignition Drive Cycle...

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

    Ignition Drive Cycle Fuel Economy and Emissions Estimates Light-Duty Reactivity Controlled Compression Ignition Drive Cycle Fuel Economy and Emissions Estimates Vehicle ...

  13. Vehicle Technologies Office Merit Review 2015: Computational Design and Development of a New, Lightweight Cast Alloy for Advanced Cylinder Heads in High-Efficiency, Light-Duty Engines

    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 computational design and...

  14. Variability of Battery Wear in Light Duty Plug-In Electric Vehicles Subject to Ambient Temperature, Battery Size, and Consumer Usage: Preprint

    SciTech Connect (OSTI)

    Wood, E.; Neubauer, J.; Brooker, A. D.; Gonder, J.; Smith, K. A.

    2012-08-01

    Battery wear in plug-in electric vehicles (PEVs) is a complex function of ambient temperature, battery size, and disparate usage. Simulations capturing varying ambient temperature profiles, battery sizes, and driving patterns are of great value to battery and vehicle manufacturers. A predictive battery wear model developed by the National Renewable Energy Laboratory captures the effects of multiple cycling and storage conditions in a representative lithium chemistry. The sensitivity of battery wear rates to ambient conditions, maximum allowable depth-of-discharge, and vehicle miles travelled is explored for two midsize vehicles: a battery electric vehicle (BEV) with a nominal range of 75 mi (121 km) and a plug-in hybrid electric vehicle (PHEV) with a nominal charge-depleting range of 40 mi (64 km). Driving distance distributions represent the variability of vehicle use, both vehicle-to-vehicle and day-to-day. Battery wear over an 8-year period was dominated by ambient conditions for the BEV with capacity fade ranging from 19% to 32% while the PHEV was most sensitive to maximum allowable depth-of-discharge with capacity fade ranging from 16% to 24%. The BEV and PHEV were comparable in terms of petroleum displacement potential after 8 years of service, due to the BEV?s limited utility for accomplishing long trips.

  15. Development of High Power Density Driveline for Vehicles | Department of

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

    Energy FAME biodiesel will likely remain a part of the global diesel pool for the coming years and the use of biodiesel can lead to lubrication issues. PDF icon deer09_lauterwasser.pdf More Documents & Publications The Road to Improved Heavy Duty Fuel Economy Effects of Fuel Dilution with Biodiesel on Lubricant Acidity, Oxidation and Corrosion Biodiesel Impact on Engine Lubricant Oil Dilution Energy

    2 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual

  16. In-Use and Vehicle Dynamometer Evaluation and Comparison of Class 7 Hybrid Electric and Conventional Diesel Delivery Trucks

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

    NREL/CP-5400-60098. Posted with permission. Presented at the SAE 2013 Commercial Vehicle Engineering Congress. 2013-01-2468 Published 09/24/2013 doi:10.4271/2013-01-2468 saecomveh.saejournals.org In-Use and Vehicle Dynamometer Evaluation and Comparison of Class 7 Hybrid Electric and Conventional Diesel Delivery Trucks Jonathan Burton, Kevin Walkowicz, Petr Sindler, and Adam Duran National Renewable Energy Laboratory ABSTRACT This study compared fuel economy and emissions between heavy-duty

  17. Effect of Gasoline Properties on Exhaust Emissions from Tier 2 Light-Duty Vehicles -- Final Report: Phases 4, 5, & 6; July 28, 2008 - July 27, 2013

    SciTech Connect (OSTI)

    Whitney, K.; Shoffner, B.

    2014-06-01

    This report covers work the Southwest Research Institute (SwRI) Office of Automotive Engineering has conducted for the National Renewable Energy Laboratory (NREL) in support of the Energy Policy Act of 2005 (EPAct). Section 1506 of EPAct requires the EPA to produce an updated fuel effects model representing the 2007 light-duty gasoline fleet, including determination of the emissions impacts of increased renewable fuel use.

  18. Vehicle Technologies Office: 2009 Advanced Vehicle Technology Analysis and

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

    Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report | Department of Energy Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report Vehicle Technologies Office: 2009 Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report PDF icon 2009_avtae_hvso.pdf More Documents & Publications Well-to-Wheels Analysis of

  19. Optimization and testing of the Beck Engineering free-piston cryogenic pump for LNG systems on heavy vehicles. Final technical report

    SciTech Connect (OSTI)

    Beck, Douglas S.

    2003-01-10

    Task 7 was completed by reaching Milestone 7: Test free piston cryogenic pump (FPCP) in Integrated LNG System. Task 4: Alternative Pump Design was also completed. The type of performance of the prototype LNG system is consistent with requirements of fuel systems for heavy vehicles; however, the maximum flow capacity of the prototype LNG system is significantly less than the total flow requirement. The flow capacity of the prototype LNG system is determined by a cavitation limit for the FPCP.

  20. Assessment of costs and benefits of flexible and alternative fuel use in the U.S. transportation sector. Technical report fourteen: Market potential and impacts of alternative fuel use in light-duty vehicles -- A 2000/2010 analysis

    SciTech Connect (OSTI)

    1996-01-01

    In this report, estimates are provided of the potential, by 2010, to displace conventional light-duty vehicle motor fuels with alternative fuels--compressed natural gas (CNG), liquefied petroleum gas (LPG), methanol from natural gas, ethanol from grain and from cellulosic feedstocks, and electricity--and with replacement fuels such as oxygenates added to gasoline. The 2010 estimates include the motor fuel displacement resulting both from government programs (including the Clean Air Act and EPACT) and from potential market forces. This report also provides an estimate of motor fuel displacement by replacement and alterative fuels in the year 2000. However, in contrast to the 2010 estimates, the year 2000 estimate is restricted to an accounting of the effects of existing programs and regulations. 27 figs., 108 tabs.

  1. Fuel Savings from Hybrid Electric Vehicles

    SciTech Connect (OSTI)

    Bennion, K.; Thornton, M.

    2009-03-01

    NREL's study shows that hybrid electric vehicles can significantly reduce oil imports for use in light-duty vehicles, particularly if drivers switch to smaller, more fuel-efficient vehicles overall.

  2. FASTSim: A Model to Estimate Vehicle Efficiency, Cost and Performance

    SciTech Connect (OSTI)

    Brooker, A.; Gonder, J.; Wang, L.; Wood, E.; Lopp, S.; Ramroth, L.

    2015-05-04

    The Future Automotive Systems Technology Simulator (FASTSim) is a high-level advanced vehicle powertrain systems analysis tool supported by the U.S. Department of Energy’s Vehicle Technologies Office. FASTSim provides a quick and simple approach to compare powertrains and estimate the impact of technology improvements on light- and heavy-duty vehicle efficiency, performance, cost, and battery batches of real-world drive cycles. FASTSim’s calculation framework and balance among detail, accuracy, and speed enable it to simulate thousands of driven miles in minutes. The key components and vehicle outputs have been validated by comparing the model outputs to test data for many different vehicles to provide confidence in the results. A graphical user interface makes FASTSim easy and efficient to use. FASTSim is freely available for download from the National Renewable Energy Laboratory’s website (see www.nrel.gov/fastsim).

  3. Evaluating the Impact of Road Grade on Simulated Commercial Vehicle Fuel Economy Using Real-World Drive Cycles

    SciTech Connect (OSTI)

    Lopp, Sean; Wood, Eric; Duran, Adam

    2015-10-13

    Commercial vehicle fuel economy is known to vary significantly with both positive and negative road grade. Medium- and heavy-duty vehicles operating at highway speeds require incrementally larger amounts of energy to pull heavy payloads up inclines as road grade increases. Non-hybrid vehicles are then unable to recapture energy on descent and lose energy through friction braking. While the on-road effects of road grade are well understood, the majority of standard commercial vehicle drive cycles feature no climb or descent requirements. Additionally, existing literature offers a limited number of sources that attempt to estimate the on-road energy implications of road grade in the medium- and heavy-duty space. This study uses real-world commercial vehicle drive cycles from the National Renewable Energy Laboratory's Fleet DNA database to simulate the effects of road grade on fuel economy across a range of vocations, operating conditions, and locations. Drive-cycles are matched with vocation-specific vehicle models and simulated with and without grade. Fuel use due to grade is presented, and variation in fuel consumption due to drive cycle and vehicle characteristics is explored through graphical and statistical comparison. The results of this study suggest that road grade accounts for 1%-9% of fuel use in commercial vehicles on average and up to 40% on select routes.

  4. Super Duty Diesel Truck with NOx Aftertreatment | Department of Energy

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

    Super Duty Diesel Truck with NOx Aftertreatment Super Duty Diesel Truck with NOx Aftertreatment A profile of a Ford-Energy Department program to develop a three-stage aftertreatment technology, which cleans the vehicle exhaust emissions. This profile is part of the U.S. Drive 2011 Accomplishment Report. PDF icon U.S. DRIVE Highlights of Technical Accomplishments 2011: Super Duty Diesel Truck with NOx Aftertreatment More Documents & Publications Development of the 2011MY Ford Super Duty

  5. Target Explanation Document: Onboard Hydrogen Storage for Light-Duty Fuel

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

    Cell Vehicles | Department of Energy Target Explanation Document: Onboard Hydrogen Storage for Light-Duty Fuel Cell Vehicles Target Explanation Document: Onboard Hydrogen Storage for Light-Duty Fuel Cell Vehicles This document, revised in May 2015, describes the basis for the technical targets for onboard hydrogen storage for light-duty fuel cell vehicles in the Fuel Cell Technologies Office's Multi-Year Research, Development, and Demonstration Plan and includes a detailed explanation of

  6. Light Duty Combustion Research: Advanced Light-Duty Combustion...

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

    Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments Light Duty Combustion Research: Advanced Light-Duty Combustion Experiments 2009 DOE Hydrogen Program and ...

  7. Hydraulic Hybrid and Conventional Parcel Delivery Vehicles' Measured Laboratory Fuel Economy on Targeted Drive Cycles

    SciTech Connect (OSTI)

    Lammert, M. P.; Burton, J.; Sindler, P.; Duran, A.

    2014-10-01

    This research project compares laboratory-measured fuel economy of a medium-duty diesel powered hydraulic hybrid vehicle drivetrain to both a conventional diesel drivetrain and a conventional gasoline drivetrain in a typical commercial parcel delivery application. Vehicles in this study included a model year 2012 Freightliner P100H hybrid compared to a 2012 conventional gasoline P100 and a 2012 conventional diesel parcel delivery van of similar specifications. Drive cycle analysis of 484 days of hybrid parcel delivery van commercial operation from multiple vehicles was used to select three standard laboratory drive cycles as well as to create a custom representative cycle. These four cycles encompass and bracket the range of real world in-use data observed in Baltimore United Parcel Service operations. The NY Composite cycle, the City Suburban Heavy Vehicle Cycle cycle, and the California Air Resources Board Heavy Heavy-Duty Diesel Truck (HHDDT) cycle as well as a custom Baltimore parcel delivery cycle were tested at the National Renewable Energy Laboratory's Renewable Fuels and Lubricants Laboratory. Fuel consumption was measured and analyzed for all three vehicles. Vehicle laboratory results are compared on the basis of fuel economy. The hydraulic hybrid parcel delivery van demonstrated 19%-52% better fuel economy than the conventional diesel parcel delivery van and 30%-56% better fuel economy than the conventional gasoline parcel delivery van on cycles other than the highway-oriented HHDDT cycle.

  8. Vehicle technologies program Government Performance and Results Act (GPA) report for fiscal year 2012

    SciTech Connect (OSTI)

    Ward, J.; Stephens, T. S.; Birky, A. K.

    2012-08-10

    The U.S. Department of Energy's Office of Energy Efficiency and Renewable Energy has defined milestones for its Vehicle Technologies Program (VTP). This report provides estimates of the benefits that would accrue from achieving these milestones relative to a base case that represents a future in which there is no VTP-supported vehicle technology development. Improvements in the fuel economy and reductions in the cost of light- and heavy-duty vehicles were estimated by using Argonne National Laboratory's Autonomie powertrain simulation software and doing some additional analysis. Argonne also estimated the fraction of the fuel economy improvements that were attributable to VTP-supported development in four 'subsystem' technology areas: batteries and electric drives, advanced combustion engines, fuels and lubricants, and materials (i.e., reducing vehicle mass, called 'lightweighting'). Oak Ridge National Laboratory's MA{sup 3}T (Market Acceptance of Advanced Automotive Technologies) tool was used to project the market penetration of light-duty vehicles, and TA Engineering's TRUCK tool was used to project the penetrations of medium- and heavy-duty trucks. Argonne's VISION transportation energy accounting model was used to estimate total fuel savings, reductions in primary energy consumption, and reductions in greenhouse gas emissions that would result from achieving VTP milestones. These projections indicate that by 2030, the on-road fuel economy of both light- and heavy-duty vehicles would improve by more than 20%, and that this positive impact would be accompanied by a reduction in oil consumption of nearly 2 million barrels per day and a reduction in greenhouse gas emissions of more than 300 million metric tons of CO{sub 2} equivalent per year. These benefits would have a significant economic value in the U.S. transportation sector and reduce its dependency on oil and its vulnerability to oil price shocks.

  9. Vehicle Technologies Office: Advanced Vehicle Testing Activity (AVTA) Data

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

    and Results | Department of Energy Vehicle Testing Activity (AVTA) Data and Results Vehicle Technologies Office: Advanced Vehicle Testing Activity (AVTA) Data and Results The Vehicle Technologies Office (VTO) supports work to develop test procedures and carry out testing on a wide range of advanced vehicles and technologies through the Advanced Vehicle Testing Activity (AVTA). This effort collects performance data from a wide range of light-duty alternative fuel and advanced technology

  10. Development of a Waste Heat Recovery System for Light Duty Diesel...

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

    Performance of an Organic Rankine Cycle Waste Heat Recovery System for Light Duty Diesel Engines A Quantum Leap for Heavy-Duty Truck Engine Efficiency - Hybrid Power System of ...

  11. EPA GHG Certification of Medium- and Heavy-Duty Vehicles: Development of Road Grade Profiles Representative of US Controlled Access Highways

    SciTech Connect (OSTI)

    Wood, Eric; Duran, Adam; Burton, Evan; Gonder, Jeffrey; Kelly, Kenneth

    2015-05-12

    This report includes a detailed comparison of the TomTom national road grade database relative to a local road grade dataset generated by Southwest Research Institute and a national elevation dataset publically available from the U.S. Geological Survey. This analysis concluded that the TomTom national road grade database was a suitable source of road grade data for purposes of this study.

  12. Appendix J - GPRA06 vehicle technologies program

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    The target market for the Office of FreedomCAR and Vehicle Technologies (FCVT) program include light vehicles (cars and light trucks) and heavy vehicles (trucks more than 10,000 pounds Gross Vehicle Weight).

  13. Mobility chains analysis of technologies for passenger cars and light duty vehicles fueled with biofuels : application of the Greet model to project the role of biomass in America's energy future (RBAEF) project.

    SciTech Connect (OSTI)

    Wu, M.; Wu, Y.; Wang, M; Energy Systems

    2008-01-31

    The Role of Biomass in America's Energy Future (RBAEF) is a multi-institution, multiple-sponsor research project. The primary focus of the project is to analyze and assess the potential of transportation fuels derived from cellulosic biomass in the years 2015 to 2030. For this project, researchers at Dartmouth College and Princeton University designed and simulated an advanced fermentation process to produce fuel ethanol/protein, a thermochemical process to produce Fischer-Tropsch diesel (FTD) and dimethyl ether (DME), and a combined heat and power plant to co-produce steam and electricity using the ASPEN Plus{trademark} model. With support from the U.S. Department of Energy (DOE), Argonne National Laboratory (ANL) conducted, for the RBAEF project, a mobility chains or well-to-wheels (WTW) analysis using the Greenhouse gases, Regulated Emissions, and Energy use in Transportation (GREET) model developed at ANL. The mobility chains analysis was intended to estimate the energy consumption and emissions associated with the use of different production biofuels in light-duty vehicle technologies.

  14. Development of the Cummins L10 engine to operate on natural gas for heavy duty transit bus applications. Final report, August 1988-December 1991

    SciTech Connect (OSTI)

    Welliver, D.R.

    1993-07-01

    This report covers all of the activities of a program undertaken to develop a natural gas fueled engine using the Cummins L10 diesel engine as the base engine. The base diesel engine is a 10 liter turbocharged jacket water aftercooled carcass that develops 270 hp at 2100 rpm. The design goals included developing a natural gas version at 240 hp with 750 lb-ft of peak torque with exhaust emission level demonstration meeting the 1991 EPA Urban Bus Emission Mandate. Additional goals included demonstrating diesel like vehicle performance and diesel like reliability and durability. Two fuel delivery systems were evaluated, one mechanical and the other electronic closed loop. Field and laboratory test engines were utilized to document reliability. Results of this program led to the production release of the gas engine for transit bus applications and California Air Resources Board certification during 1992.

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

    SciTech Connect (OSTI)

    Willson, B. )

    1992-09-01

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

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

    SciTech Connect (OSTI)

    Willson, B.

    1992-09-01

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

  17. Medium Truck Duty Cycle Data from Real-World Driving Environments: Project Interim Report

    SciTech Connect (OSTI)

    Franzese, Oscar; Lascurain, Mary Beth; Capps, Gary J

    2011-01-01

    Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At the present time, nearly 80% of the US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle truck research, and is leading the 21st Century Truck Partnership whose stretch goals involve a reduction by 50% of the fuel consumption of heavy vehicles on a ton-mile basis. This Medium Truck Duty Cycle (MTDC) Project is a critical element in DOE s vision for improved heavy vehicle energy efficiency and is unique in that there is no other national database of characteristic duty cycles for medium trucks. It involves the collection of real-world data for various situational characteristics (rural/urban, freeway/arterial, congested/free-flowing, good/bad weather, etc.) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips), to provide a rich source of data that can contribute to the development of new tools for fuel efficiency and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support heavy vehicle energy efficiency research. The MTDC project involves a two-part field operational test (FOT). For the Part-1 FOT, three vehicles, each from two vocations (urban transit and dry-box delivery) were instrumented for one year of data collection. The Part-2 FOT will involve the towing/recovery and utility vocations. The vehicles participating in the MTDC project are doing so through gratis partnerships in return for early access to the results of this study. Partnerships such as these are critical to FOTs in which real-world data is being collected. In Part 1 of the project, Oak Ridge National Laboratory(ORNL) established partnerships with the H.T. Hackney Company, one of the largest wholesale distributors in the country, distributing products to 21 states; and with the Knoxville Area Transit (KAT), the City of Knoxville s transit system, operating services across the city of Knoxville and parts of Knox co. These partnerships and agreements provided ORNL access to three Class-7 2005/2007 International day-cab tractors, model 8600, which regularly haul 28 ft pup trailers (H.T. Hackney Co) and three Class-7 2005 Optima LF-34 buses (KAT), for collection of duty cycle data. In addition, ORNL has collaborated with the Federal Motor Carrier Safety Administration (FMCSA) to determine if there were possible synergies between this duty cycle data collection effort and FMCSA s need to learn more about the operation and duty cycles of the second-largest fuel consuming commercial vehicle category in the US. FMCSA s primary interest was in collecting safety data relative to the driver, carrier, and vehicle. In order to collect the duty cycle and safety-related data, ORNL developed a data acquisition and wireless communication system that was placed on each test vehicle. Each signal recorded in this FOT was collected by means of one of the instruments incorporated into each data acquisition system (DAS). Native signals were obtained directly from the vehicle s J1939 and J1708 data buses. A VBOX II Lite collected Global Positioning System related information including speed, acceleration, and spatial location information at a rate of 5 Hz, and communicated this data via the CAN (J1939) protocol. The Air-Weigh LoadMaxx, a self-weighing system which determines the vehicle s gross weight by means of pressure transducers and posts the weight to the vehicle s J1939 data bus, was used to collect vehicle payload information. A cellular modem, the Raven X EVDO V4221, facilitated the communication between the eDAQ-lite (the data collection engine of the system) and the user, via the internet. The modem functioned as a wireless gateway, allowing data retrievals and system checks to be performed remotely. Also, and in partnership with FMCSA, two additional safety sensors were installed on the combination vehicles: the MGM e-Stroke brake monitoring system and the Tire SafeGuard tire pressure monitoring system. Both of these systems posted data to the J1939 data bus, enabling these signals to be read without any additional DAS interface hardware. Seventy-three signals from the different deployed sensors and available vehicle systems were collected. Because of the differences in vehicle data buses (i.e., J1939 and J1708 data buses), not all desired signals were available for both types of vehicles. The s...

  18. 2015 Annual Merit Review, Vehicle Technologies Office

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

    to identify and meet requirements for materials needed to develop cost-effective, highly efficient, and environmentally friendly next-generation heavy and light duty powertrains. ...

  19. Fact #706: December 19, 2011 Vocational Vehicle Fuel Consumption Standards

    Broader source: Energy.gov [DOE]

    The National Highway Traffic Safety Administration recently published final fuel consumption standards for heavy vehicles called "vocational" vehicles. A vocational vehicle is generally a single...

  20. Size-Resolved Particle Number and Volume Emission Factors for On-Road Gasoline and Diesel Motor Vehicles

    SciTech Connect (OSTI)

    Ban-Weiss, George A.; Lunden, Melissa M.; Kirchstetter, Thomas W.; Harley, Robert A.

    2009-04-10

    Average particle number concentrations and size distributions from {approx}61,000 light-duty (LD) vehicles and {approx}2500 medium-duty (MD) and heavy-duty (HD) trucks were measured during the summer of 2006 in a San Francisco Bay area traffic tunnel. One of the traffic bores contained only LD vehicles, and the other contained mixed traffic, allowing pollutants to be apportioned between LD vehicles and diesel trucks. Particle number emission factors (particle diameter D{sub p} > 3 nm) were found to be (3.9 {+-} 1.4) x 10{sup 14} and (3.3 {+-} 1.3) x 10{sup 15} kg{sup -1} fuel burned for LD vehicles and diesel trucks, respectively. Size distribution measurements showed that diesel trucks emitted at least an order of magnitude more particles for all measured sizes (10 < D{sub p} < 290 nm) per unit mass of fuel burned. The relative importance of LD vehicles as a source of particles increased as D{sub p} decreased. Comparing the results from this study to previous measurements at the same site showed that particle number emission factors have decreased for both LD vehicles and diesel trucks since 1997. Integrating size distributions with a volume weighting showed that diesel trucks emitted 28 {+-} 11 times more particles by volume than LD vehicles, consistent with the diesel/gasoline emission factor ratio for PM{sub 2.5} mass measured using gravimetric analysis of Teflon filters, reported in a companion paper.

  1. High Efficiency Clean Combustion in Multi-Cylinder Light-Duty...

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

    09 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer ... High-Efficiency Clean Combustion in Light-Duty Multi-Cylinder Diesel Engines High ...

  2. High-Efficiency Clean Combustion in Light-Duty Multi-Cylinder...

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

    High-Efficiency Clean Combustion in Light-Duty Multi-Cylinder Diesel Engines 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, ...

  3. SCReaming for Low NOx - SCR for the Light Duty Market | Department...

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

    Century Truck Programs. PDF icon 2006deertraver.pdf More Documents & Publications Validated SCR Concept Development Simulation and Analysis of HPLP EGR for Heavy-Duty ...

  4. Light Duty Efficient, Clean Combustion

    SciTech Connect (OSTI)

    Donald Stanton

    2010-12-31

    Cummins has successfully completed the Light Duty Efficient Clean Combustion (LDECC) cooperative program with DoE. This program was established in 2007 in support of the Department of Energy's Vehicles Technologies Advanced Combustion and Emissions Control initiative to remove critical barriers to the commercialization of advanced, high efficiency, emissions compliant internal combustion (IC) engines for light duty vehicles. Work in this area expanded the fundamental knowledge of engine combustion to new regimes and advanced the knowledge of fuel requirements for these diesel engines to realize their full potential. All of the following objectives were met with fuel efficiency improvement targets exceeded: (1) Improve light duty vehicle (5000 lb. test weight) fuel efficiency by 10.5% over today's state-of-the-art diesel engine on the FTP city drive cycle; (2) Develop and design an advanced combustion system plus aftertreatment system that synergistically meets Tier 2 Bin 5 NOx and PM emissions standards while demonstrating the efficiency improvements; (3) Maintain power density comparable to that of current conventional engines for the applicable vehicle class; and (4) Evaluate different fuel components and ensure combustion system compatibility with commercially available biofuels. Key accomplishments include: (1) A 25% improvement in fuel efficiency was achieved with the advanced LDECC engine equipped with a novel SCR aftertreatment system compared to the 10.5% target; (2) An 11% improvement in fuel efficiency was achieved with the advanced LDECC engine and no NOx aftertreamtent system; (3) Tier 2 Bin 5 and SFTP II emissions regulations were met with the advanced LDECC engine equipped with a novel SCR aftertreatment system; (4) Tier 2 Bin 5 emissions regulations were met with the advanced LDECC engine and no NOx aftertreatment, but SFTP II emissions regulations were not met for the US06 test cycle - Additional technical barriers exist for the no NOx aftertreatment engine; (5) Emissions and efficiency targets were reached with the use of biodiesel. A variety of biofuel feedstocks (soy, rapeseed, etc.) was investigated; (6) The advanced LDECC engine with low temperature combustion was compatible with commercially available biofuels as evaluated by engine performance testing and not durability testing; (7) The advanced LDECC engine equipped with a novel SCR aftertreatment system is the engine system architecture that is being further developed by the Cummins product development organization. Cost reduction and system robustness activities have been identified for future deployment; (8) The new engine and aftertreatment component technologies are being developed by the Cummins Component Business units (e.g. fuel system, turbomachinery, aftertreatment, electronics, etc.) to ensure commercial viability and deployment; (9) Cummins has demonstrated that the technologies developed for this program are scalable across the complete light duty engine product offerings (2.8L to 6.7L engines); and (10) Key subsystems developed include - sequential two stage turbo, combustions system for low temperature combustion, novel SCR aftertreatment system with feedback control, and high pressure common rail fuel system. An important element of the success of this project was leveraging Cummins engine component technologies. Innovation in component technology coupled with system integration is enabling Cummins to move forward with the development of high efficiency clean diesel products with a long term goal of reaching a 40% improvement in thermal efficiency for the engine plus aftertreatment system. The 40% improvement is in-line with the current light duty vehicle efficiency targets set by the 2010 DoE Vehicle Technologies MYPP and supported through co-operative projects such as the Cummins Advanced Technology Powertrains for Light-Duty Vehicles (ATP-LD) started in 2010.

  5. Alternative Fuels Data Center: Idle Reduction Laws and Incentives

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

    More in this section... Idle Reduction Benefits & Considerations Heavy-Duty Vehicles Medium-Duty Vehicles Light-Duty Vehicles School Buses Laws & Incentives Research & Development ...

  6. Alternative Fuels Data Center

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

    and Fuel Standards Program will require new vehicle emissions standards for passenger cars, light-duty trucks, medium-duty passenger vehicles, and some heavy-duty vehicles. ...

  7. Assessment of Future ICE and Fuel-Cell Powered Vehicles and Their...

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

    of Technology PDF icon 2004deerheywood.pdf More Documents & Publications An Energy Evolution:Alternative Fueled Vehicle Comparisons WORKSHOP REPORT:Light-Duty Vehicles Technical ...

  8. AN ASSESSMENT OF FLYWHEEL HIGH POWER ENERGY STORAGE TECHNOLOGY FOR HYBRID VEHICLES

    SciTech Connect (OSTI)

    Hansen, James Gerald

    2012-02-01

    An assessment has been conducted for the DOE Vehicle Technologies Program to determine the state of the art of advanced flywheel high power energy storage systems to meet hybrid vehicle needs for high power energy storage and energy/power management. Flywheel systems can be implemented with either an electrical or a mechanical powertrain. The assessment elaborates upon flywheel rotor design issues of stress, materials and aspect ratio. Twelve organizations that produce flywheel systems submitted specifications for flywheel energy storage systems to meet minimum energy and power requirements for both light-duty and heavy-duty hybrid applications of interest to DOE. The most extensive experience operating flywheel high power energy storage systems in heavy-duty and light-duty hybrid vehicles is in Europe. Recent advances in Europe in a number of vehicle racing venues and also in road car advanced evaluations are discussed. As a frame of reference, nominal weight and specific power for non-energy storage components of Toyota hybrid electric vehicles are summarized. The most effective utilization of flywheels is in providing high power while providing just enough energy storage to accomplish the power assist mission effectively. Flywheels are shown to meet or exceed the USABC power related goals (discharge power, regenerative power, specific power, power density, weight and volume) for HEV and EV batteries and ultracapacitors. The greatest technical challenge facing the developer of vehicular flywheel systems remains the issue of safety and containment. Flywheel safety issues must be addressed during the design and testing phases to ensure that production flywheel systems can be operated with adequately low risk.

  9. Alternative fuels for vehicles fleet demonstration program final report. Volume 1: Summary

    SciTech Connect (OSTI)

    1997-03-01

    The Alternative Fuels for Vehicles Fleet Demonstration Program (AFV-FDP) was a multiyear effort to collect technical data for use in determining the costs and benefits of alternative-fuel vehicles in typical applications in New York State. During 3 years of collecting data, 7.3 million miles of driving were accumulated, 1,003 chassis-dynamometer emissions tests were performed, 862,000 gallons of conventional fuel were saved, and unique information was developed about garage safety recommendations, vehicle performance, and other topics. Findings are organized by vehicle and fuel type. For light-duty compressed natural gas (CNG) vehicles, technology has evolved rapidly and closed-loop, electronically-controlled fuel systems provide performance and emissions advantages over open-loop, mechanical systems. The best CNG technology produces consistently low tailpipe emissions versus gasoline, and can eliminate evaporative emissions. Reduced driving range remains the largest physical drawback. Fuel cost is low ($/Btu) but capital costs are high, indicating that economics are best with vehicles that are used intensively. Propane produces impacts similar to CNG and is less expensive to implement, but fuel cost is higher than gasoline and safety codes limit use in urban areas. Light-duty methanol/ethanol vehicles provide performance and emissions benefits over gasoline with little impact on capital costs, but fuel costs are high. Heavy-duty CNG engines are evolving rapidly and provide large reductions in emissions versus diesel. Capital costs are high for CNG buses and fuel efficiency is reduced, but the fuel is less expensive and overall operating costs are about equal to those of diesel buses. Methanol buses provide performance and emissions benefits versus diesel, but fuel costs are high. Other emerging technologies were also evaluated, including electric vehicles, hybrid-electric vehicles, and fuel cells.

  10. 2015 Vehicle Buyer's Guide (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2015-02-01

    Drivers and fleets are increasingly turning to the hundreds of light-duty, alternative fuel, and advanced technology vehicle models that reduce petroleum use, save on fuel costs, and cut emissions. This guide provides a comprehensive list of the 2015 light-duty models that use alternative fuels or advanced fuel-saving technologies.

  11. Advanced Vehicle Testing and Evaluation

    SciTech Connect (OSTI)

    Garetson, Thomas

    2013-03-31

    The objective of the United States (U.S.) Department of Energy's (DOEs) Advanced Vehicle Testing and Evaluation (AVTE) project was to provide test and evaluation services for advanced technology vehicles, to establish a performance baseline, to determine vehicle reliability, and to evaluate vehicle operating costs in fleet operations.Vehicles tested include light and medium-duty vehicles in conventional, hybrid, and all-electric configurations using conventional and alternative fuels, including hydrogen in internal combustion engines. Vehicles were tested on closed tracks and chassis dynamometers, as well as operated on public roads, in fleet operations, and over prescribed routes. All testing was controlled by procedures developed specifically to support such testing.

  12. In-Use and Vehicle Dynamometer Evaluation and Comparison of Class 7 Hybrid Electric and Conventional Diesel Delivery Trucks

    SciTech Connect (OSTI)

    Burton, J.; Walkowicz, K.; Sindler, P.; Duran, A.

    2013-10-01

    This study compared fuel economy and emissions between heavy-duty hybrid electric vehicles (HEVs) and equivalent conventional diesel vehicles. In-use field data were collected from daily fleet operations carried out at a FedEx facility in California on six HEV and six conventional 2010 Freightliner M2-106 straight box trucks. Field data collection primarily focused on route assessment and vehicle fuel consumption over a six-month period. Chassis dynamometer testing was also carried out on one conventional vehicle and one HEV to determine differences in fuel consumption and emissions. Route data from the field study was analyzed to determine the selection of dynamometer test cycles. From this analysis, the New York Composite (NYComp), Hybrid Truck Users Forum Class 6 (HTUF 6), and California Air Resource Board (CARB) Heavy Heavy-Duty Diesel Truck (HHDDT) drive cycles were chosen. The HEV showed 31% better fuel economy on the NYComp cycle, 25% better on the HTUF 6 cycle and 4% worse on the CARB HHDDT cycle when compared to the conventional vehicle. The in-use field data indicates that the HEVs had around 16% better fuel economy than the conventional vehicles. Dynamometer testing also showed that the HEV generally emitted higher levels of nitric oxides than the conventional vehicle over the drive cycles, up to 77% higher on the NYComp cycle (though this may at least in part be attributed to the different engine certification levels in the vehicles tested). The conventional vehicle was found to accelerate up to freeway speeds over ten seconds faster than the HEV.

  13. Thermoelectric Opportunities for Light-Duty Vehicles

    Office of Energy Efficiency and Renewable Energy (EERE)

    Overview of thermoelectrics for automotive applications and role of automakers in setting guidelines and technology attributes needed for the global product, regulatory, and market environment

  14. Medium Truck Duty Cycle Data from Real-World Driving Environments: Final Report

    SciTech Connect (OSTI)

    Lascurain, Mary Beth; Franzese, Oscar; Capps, Gary J; Siekmann, Adam; Thomas, Neil; LaClair, Tim J; Barker, Alan M; Knee, Helmut E

    2012-11-01

    Since the early part of the 20th century, the US trucking industry has provided a safe and economical means of moving commodities across the country. At present, nearly 80% of US domestic freight movement involves the use of trucks. The US Department of Energy (DOE) is spearheading a number of research efforts to improve heavy vehicle fuel efficiencies. This includes research in engine technologies (including hybrid and fuel cell technologies), lightweight materials, advanced fuels, and parasitic loss reductions. In addition, DOE is developing advanced tools and models to support heavy vehicle research and is leading the 21st Century Truck Partnership and the SuperTruck development effort. Both of these efforts have the common goal of decreasing the fuel consumption of heavy vehicles. In the case of SuperTruck, a goal of improving the overall freight efficiency of a combination tractor-trailer has been established. This Medium Truck Duty Cycle (MTDC) project is a critical element in DOE s vision for improved heavy vehicle energy efficiency; it is unique in that there is no other existing national database of characteristic duty cycles for medium trucks based on collecting data from Class 6 and 7 vehicles. It involves the collection of real-world data on medium trucks for various situational characteristics (e.g., rural/urban, freeway/arterial, congested/free-flowing, good/bad weather) and looks at the unique nature of medium trucks drive cycles (stop-and-go delivery, power takeoff, idle time, short-radius trips). This research provides a rich source of data that can contribute to the development of new tools for FE and modeling, provide DOE a sound basis upon which to make technology investment decisions, and provide a national archive of real-world-based medium-truck operational data to support energy efficiency research. The MTDC project involved a two-part field operational test (FOT). For the Part-1 FOT, three vehicles each from two vocations (urban transit and dry-box delivery) were instrumented for the collection of one year of operational data. The Part-2 FOT involved the towing and recovery and utility vocations for a second year of data collection. The vehicles that participated in the MTDC project did so through gratis partnerships in return for early access to the results of this study. Partnerships such as these are critical to FOTs in which real-world data is being collected. In Part 1 of the project, Oak Ridge National Laboratory (ORNL) established partnerships with the H.T. Hackney Company (HTH), one of the largest wholesale distributors in the country, distributing products to 21 states; and with Knoxville Area Transit (KAT), the city of Knoxville s transit system, which operates across Knoxville and parts of Knox County. These partnerships and agreements provided ORNL access to three Class-7 day-cab tractors that regularly haul 28 ft pup trailers (HTH) and three Class-7 buses for the collection of duty cycle data. In addition, ORNL collaborated with the Federal Motor Carrier Safety Administration (FMCSA) to determine if there were possible synergies between this duty cycle data collection effort and FMCSA s need to learn more about the operation and duty cycles of medium trucks. FMCSA s primary interest was in collecting safety data relative to the driver, carrier, and vehicle. In Part 2 of the project, ORNL partnered with the Knoxville Utilities Board, which made available three Class-8 trucks. Fountain City Wrecker Service was also a Part 2 partner, providing three Class-6 rollback trucks. In order to collect the duty cycle and safety-related data, ORNL developed a data acquisition system (DAS) that was placed on each test vehicle. Each signal recorded in this FOT was collected by means of one of the instruments incorporated into each DAS. Other signals were obtained directly from the vehicle s J1939 and J1708 data buses. A VBOX II Lite collected information available from a global positioning system (GPS), including speed, acceleration, and spatial location information at a rate of 5 Hz for the Part 1 FOT. For the Part 2 FOT, this information was obtained from DAS-based GPS instrumentation. The Air-Weigh LoadMaxx, a self-weighing system that determines the vehicle s gross weight by means of pressure transducers, was used to collect vehicle payload information for the combination, urban transit, and towing and recovery vehicles. A cellular modem, the Raven X EVDO V4221, facilitated the communication between the eDAQ-lite (the data collection engine of the system) and the user. The modem functioned as a wireless gateway, allowing data retrievals and system checks to be performed remotely. Also, in partnership with FMCSA, two additional safety sensors were installed on the combination vehicles: the MGM e-Stroke brake monitoring system and the Tire SafeGuard tire pressure monitoring system. All of these sensors posted data to the J1939 data bus, enabling the signals to be read withou...

  15. Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and

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

    Evaluation | Department of Energy 1 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation PDF icon arravt068_vss_miyasato_2011_o .pdf More Documents & Publications SCAQMD:Plug-In Hybrid Electric Medium-Duty Commercial Fleet Demonstration and Evaluation Plug-In Hybrid Electric Medium Duty Commercial Fleet Demonstration and Evaluation Vehicle Technologies Office Merit Review 2014: SCAQMD: Plug-In Hybrid Electric Medium-Duty Commercial

  16. Heavy Duty Diesels- The Road Ahead

    Office of Energy Efficiency and Renewable Energy (EERE)

    This presentation gives a landscape picture of diesel engine technologies from the Daimler point of view.

  17. Heavy Duty Low-Temperature & Diesel Combustion

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

    Low-Temperature & Diesel Combustion - Sandia Energy Energy Search Icon Sandia Home ... EnergyWater History Water Monitoring & Treatment Technology Decision Models for ...

  18. Vehicle Technologies Office Merit Review 2014: High Efficiency...

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

    Clean Combustion in Multi-Cylinder Light-Duty Engines Presentation given by Oak Ridge National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies ...

  19. Vehicle Technologies Office Merit Review 2015: High Efficiency...

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

    Clean Combustion in Multi-Cylinder Light-Duty Engines Presentation given by Oak Ridge National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies ...

  20. Vehicle Technologies Office Merit Review 2015: Use of Low Cetane...

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

    Temperature Combustion Vehicle Technologies Office Merit Review 2015: High Efficiency Clean Combustion in Multi-Cylinder Light-Duty Engines Sandia Optical Hydrogen-fueled Engine

  1. Vehicle Technologies Office Merit Review 2014: Advanced Combustion...

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

    and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about advanced combustion concepts - enabling systems and solutions for high efficiency light duty...

  2. Vehicle Technologies Office: 21st Century Truck Partnership ...

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

    ... losses, auxiliary loads) Idle Reduction (reduce overnight and work-day idling) Safety (crash avoidance, intelligent transportation systems) Operational Efficiency (vehicle duty ...

  3. Battery Ownership Model - Medium Duty HEV Battery Leasing & Standardization

    SciTech Connect (OSTI)

    Kelly, Ken; Smith, Kandler; Cosgrove, Jon; Prohaska, Robert; Pesaran, Ahmad; Paul, James; Wiseman, Marc

    2015-12-01

    Prepared for the U.S. Department of Energy, this milestone report focuses on the economics of leasing versus owning batteries for medium-duty hybrid electric vehicles as well as various battery standardization scenarios. The work described in this report was performed by members of the Energy Storage Team and the Vehicle Simulation Team in NREL's Transportation and Hydrogen Systems Center along with members of the Vehicles Analysis Team at Ricardo.

  4. Integrated Vehicle and Powertrain Technology for EPA 2010 and...

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

    over Transient Operation Heavy-Duty Engine Combustion Optimization for High Thermal Efficiency Targeting EPA 2010 Emissions State-of-the-Art and Emergin Truck Engine ...

  5. Vehicle Technologies Office: 2010 Lightweight Materials R&D Annual...

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

    The Lightweight Materials activity (LM) focuses on the development and validation of advanced materials and manufacturing technologies to significantly reduce light and heavy duty ...

  6. Design and Implementation of Silicon Nitride Valves for Heavy...

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

    Design and Implementation of Silicon Nitride Valves for Heavy Duty Diesel Engines Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER ...

  7. Heavy-Truck Clean Diesel (HTCD) Program | Department of Energy

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

    Caterpillar PDF icon 2004deerduffy.pdf More Documents & Publications Diesel HCCI Results at Caterpillar Diesel HCCI Results at Caterpillar Heavy-Duty HCCI Development Activities

  8. Heavy Truck Clean Diesel (HTCD) Program: 2007 Demonstration Truck...

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

    More Documents & Publications Transient Simulation of a 2007 Prototype Heavy-Duty Engine Diesel Aftertreatment Systems development Demonstration of a 50% Thermal Efficient Diesel ...

  9. Low-Cost Methane Liquefaction Plant and Vehicle Refueling Station

    SciTech Connect (OSTI)

    B. Wilding; D. Bramwell

    1999-01-01

    The Idaho National Engineering and Environmental Laboratory (INEEL) is currently negotiating a collaborative effort with Pacific Gas and Electric (PG&E) that will advance the use of liquefied natural gas (LNG) as a vehicle fuel. We plan to develop and demonstrate a small-scale methane liquefaction plant (production of 5,000 to 10,000 gallons per day) and a low-cost ($150,000) LNG refueling station to supply fuel to LNG-powered transit buses and other heavy-duty vehicles. INEEL will perform the research and development work. PG&E will deploy the new facilities commercially in two demonstration projects, one in northern California, and one in southern California.

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

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

    Testing R&D Annual Progress Report | Department of Energy Vehicle and Systems Simulation and Testing R&D Annual Progress Report Vehicle Technologies Office: 2010 Vehicle and Systems Simulation and Testing R&D Annual Progress Report 2010 annual report focusing on five main areas: modeling and simulation, component and systems evaluation, laboratory and field vehicle evaluation, codes and standards development, and heavy vehicle systems optimization. PDF icon 2010_vsst_report.pdf

  11. Vehicle Technologies Office Merit Review 2014: Computational design and development of a new, lightweight cast alloy for advanced cylinder heads in high-efficiency, light-duty engines FOA 648-3a

    Broader source: Energy.gov [DOE]

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

  12. Electric Vehicle Grid Integration for Sustainable Military Installatio...

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

    ... match vehicles with grid needs while ensuring mobility 14 Tue Wed Thu Fri Sat 0 10 20 30 40 50 60 70 80 90 100 Miles Remaining for Each Vehicle Analyzed day of week Medium Duty ...

  13. Plug-In Electric Vehicle Handbook for Public Charging Station...

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

    ... Gasoline- and diesel-powered ICE vehicles ended up ... the nation's first zero emission vehicle mandate, putting the ... about 10 to 40-plus miles for current light-duty models. ...

  14. GASOLINE VEHICLE EXHAUST PARTICLE SAMPLING STUDY

    SciTech Connect (OSTI)

    Kittelson, D; Watts, W; Johnson, J; Zarling, D Schauer,J Kasper, K; Baltensperger, U; Burtscher, H

    2003-08-24

    The University of Minnesota collaborated with the Paul Scherrer Institute, the University of Wisconsin (UWI) and Ricardo, Inc to physically and chemically characterize the exhaust plume from recruited gasoline spark ignition (SI) vehicles. The project objectives were: (1) Measure representative particle size distributions from a set of on-road SI vehicles and compare these data to similar data collected on a small subset of light-duty gasoline vehicles tested on a chassis dynamometer with a dilution tunnel using the Unified Drive Cycle, at both room temperature (cold start) and 0 C (cold-cold start). (2) Compare data collected from SI vehicles to similar data collected from Diesel engines during the Coordinating Research Council E-43 project. (3) Characterize on-road aerosol during mixed midweek traffic and Sunday midday periods and determine fleet-specific emission rates. (4) Characterize bulk- and size-segregated chemical composition of the particulate matter (PM) emitted in the exhaust from the gasoline vehicles. Particle number concentrations and size distributions are strongly influenced by dilution and sampling conditions. Laboratory methods were evaluated to dilute SI exhaust in a way that would produce size distributions that were similar to those measured during laboratory experiments. Size fractionated samples were collected for chemical analysis using a nano-microorifice uniform deposit impactor (nano-MOUDI). In addition, bulk samples were collected and analyzed. A mixture of low, mid and high mileage vehicles were recruited for testing during the study. Under steady highway cruise conditions a significant particle signature above background was not measured, but during hard accelerations number size distributions for the test fleet were similar to modern heavy-duty Diesel vehicles. Number emissions were much higher at high speed and during cold-cold starts. Fuel specific number emissions range from 1012 to 3 x 1016 particles/kg fuel. A simple relationship between number and mass emissions was not observed. Data were collected on-road to compare weekday with weekend air quality around the Twin Cities area. This portion of the study resulted in the development of a method to apportion the Diesel and SI contribution to on-road aerosol.

  15. Propane vehicles : status, challenges, and opportunities.

    SciTech Connect (OSTI)

    Rood Werpy, M.; Burnham, A.; Bertram, K.; Energy Systems

    2010-06-17

    Propane as an auto fuel has a high octane value and has key properties required for spark-ignited internal combustion engines. To operate a vehicle on propane as either a dedicated fuel or bi-fuel (i.e., switching between gasoline and propane) vehicle, only a few modifications must be made to the engine. Until recently propane vehicles have commonly used a vapor pressure system that was somewhat similar to a carburetion system, wherein the propane would be vaporized and mixed with combustion air in the intake plenum of the engine. This leads to lower efficiency as more air, rather than fuel, is inducted into the cylinder for combustion (Myers 2009). A newer liquid injection system has become available that injects propane directly into the cylinder, resulting in no mixing penalty because air is not diluted with the gaseous fuel in the intake manifold. Use of a direct propane injection system will improve engine efficiency (Gupta 2009). Other systems include the sequential multi-port fuel injection system and a bi-fuel 'hybrid' sequential propane injection system. Carbureted systems remain in use but mostly for non-road applications. In the United States a closed-loop system is used in after-market conversions. This system incorporates an electronic sensor that provides constant feedback to the fuel controller to allow it to measure precisely the proper air/fuel ratio. A complete conversion system includes a fuel controller, pressure regulator valves, fuel injectors, electronics, fuel tank, and software. A slight power loss is expected in conversion to a vapor pressure system, but power can still be optimized with vehicle modifications of such items as the air/fuel mixture and compression ratios. Cold start issues are eliminated for vapor pressure systems since the air/fuel mixture is gaseous. In light-duty propane vehicles, the fuel tank is typically mounted in the trunk; for medium- and heavy-duty vans and trucks, the tank is located under the body of the vehicle. Propane tanks add weight to a vehicle and can slightly increase the consumption of fuel. On a gallon-to-gallon basis, the energy content of propane is 73% that of gasoline, thus requiring more propane fuel to travel an equivalent distance, even in an optimized engine (EERE 2009b).

  16. Clean Cities 2011 Vehicle Buyer's Guide

    SciTech Connect (OSTI)

    Not Available

    2011-01-01

    The 2011 Clean Cities Light-Duty Vehicle Buyer's Guide is a consumer publication that provides a comprehensive list of commercially available alternative fuel and advanced vehicles in model year 2011. The guide allows for side-by-side comparisons of fuel economy, price, emissions, and vehicle specifications.

  17. Clean Cities 2014 Vehicle Buyer's Guide (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2013-12-01

    This annual guide features a comprehensive list of 2014 light-duty alternative fuel and advanced vehicles, grouped by fuel and technology. The guide provides model-specific information on vehicle specifications, manufacturer suggested retail price, fuel economy, energy impact, and emissions. The information can be used to identify options, compare vehicles, and help inform purchase decisions.

  18. Vehicle Technologies Office Merit Review 2014: DOE's Effort to...

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

    through Improved Aerodynamics Vehicle Technologies Office Merit Review 2014: DOE's Effort to Improve Heavy Vehicle Fuel Efficiency through Improved Aerodynamics Presentation ...

  19. Vehicle Technologies Office Merit Review 2015: DOE's Effort to...

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

    through Improved Aerodynamics Vehicle Technologies Office Merit Review 2015: DOE's Effort to Improve Heavy Vehicle Fuel Efficiency through Improved Aerodynamics Presentation ...

  20. Vehicle Technologies Office: Materials for High-Efficiency Combustion...

    Energy Savers [EERE]

    engines for automotive, light trucks, and heavy-truck applications by 25% to 50%. ... for automotive applications as well as new iron-based cast alloys for heavy-duty engines. ...