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Future Light-Duty Vehicles: Predicting their Fuel Consumption and Carbon-Reduction Potential
Technical Paper
2001-01-1081
ISSN: 0148-7191, e-ISSN: 2688-3627
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Sector:
Event:
SAE 2001 World Congress
Language:
English
Abstract
The transportation sector in the United States is a major contributor to global energy consumption and carbon dioxide emission. To assess the future potentials of different technologies in addressing these two issues, we used a family of simulation programs to predict fuel consumption for passenger cars in 2020. The selected technology combinations that have good market potential and could be in mass production include: advanced gasoline and diesel internal combustion engine vehicles with automatically-shifting clutched transmissions, gasoline, diesel, and compressed natural gas hybrid electric vehicles with continuously variable transmissions, direct hydrogen, gasoline and methanol reformer fuel cell hybrid electric vehicles with direct ratio drive, and battery electric vehicle with direct ratio drive. Using appropriately researched assumptions and input variables, calculations were performed to estimate the energy consumption and carbon dioxide emissions of the different technology combinations. Comparing the results for the vehicle driving cycle only, an evolutionary fuel consumption improvement of about 35 percent can be expected for the baseline gasoline car, given only market pressures and gradual regulatory requirements. With more research and investment in technology, an advanced gasoline engine car may further reduce fuel consumption by 12%, and a gasoline electric hybrid by 40%, as compared to the evolutionary car. Diesel versions of the advanced combustion and hybrid vehicles may be 10-15% better than their gasoline counterparts. Compressed natural gas hybrid vehicle may reduce fuel consumption by 3-4% but may reduce carbon dioxide emission by 25%. Meanwhile, a direct hydrogen fuel cell electric hybrid vehicle may have the greatest improvement over the baseline at 55%, but the gasoline and methanol reformers fuel cell versions appear very expensive and offer little benefit. Finally, aside from critical battery limitations, the electric vehicle is difficult to compare to other vehicles without taking into account the electricity generation process.
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AuYeung, F., Heywood, J., and Schafer, A., "Future Light-Duty Vehicles: Predicting their Fuel Consumption and Carbon-Reduction Potential," SAE Technical Paper 2001-01-1081, 2001, https://doi.org/10.4271/2001-01-1081.Also In
References
- “World Total Energy Consumption,” United States Department of Energy www.eia.doe.gov/oiaf/ieo95/tbls.html
- Ward's Automotive Yearbook 1997 59th Ward's Communications 1997
- Motor Vehicle Facts & Figures 1998 American Automobile Manufacturers Association 1998
- Chon Dale Heywood John “Performance Scaling of Spark-Ignition Engines: Correlation and Historical Analysis of Production Engine Data,” SAE Paper 2000-01-0565 2000
- Guzzella L. Amstutz A. “Quasi-Stationären-Simulations,” Matlab programs and text Benutzeranleitung, Laboratorium für Motorsysteme Institut für Energietechnik ETH-Zürich 1998
- EPA annual Fuel Economy Guide 2000
- Heywood John B. Internal Combustion Engine Fundamentals McGraw-Hill, Inc. 1998
- GM EV1- Specifications www.gm.com 2000
- “Hybrid Electric Vehicle Component Information” Department of Energy August 1999
- United States Advanced Battery Consortium Battery Criteria: Commercialization www.USCAR.org May 2000
- Kalhammer Fritz
- Friedman David J. “Maximizing Direct-Hydrogen PEM Fuel Cell Vehicle Efficiency - Is Hybridization Necessary?” Society of Automotive Engineers, 1999-01-0539 1999
- Thomas C.E. et al. “Societal Impacts of Fuel Options for Fuel Cell Vehicles,” Society of Automotive Engineers, 982496 1998
- Weiss M.A. Heywood J.B. Drake E.M. Schafer A. AuYeung F. Unger D. “On the Road in 2020: A Life-Cycle Analysis of New Automobile Technologies,” Energy Laboratory Report M.I.T. October 2000
- MacLean H.L. Lave L.B. “Addressing Vehicle Equivalency to Facilitate Meaningful Automobile Comparisons,” Society of Automotive Engineers 1998
- Advanced Automotive Technologies: Visions of a Super-Efficient Family Car Washington D.C. 1995
- Kluger Michael Long Denis “An Overview of Current Automatic, Manual and Continuously Variable Transmission Efficiencies and their Projected Future Improvements,” SAE Paper 1999-01-1259 1999
- “Issues in Midterm Analysis and Forecasting 1999,” Energy Information Administration, Department of Energy 1999
- “NAIAS Highlights: Concepts,” Automotive Engineering International March 2000
- “New Ford Hybrid Electric Car Tops 70 mpg,” Ford Motor Company Better Ideas: Environment www.ford.com 2000
- Burke A.F. “Hybrid/Electric Vehicle Design Options and Evaluations,” Society of Automotive Engineers, 920447 1992
- Bosch Automotive Handbook 4th Robert Bosch GmbH 1996
- Stock Dieter Bauder Richard “The New Audi 5-Cylinder Turbo Diesel Engine: The First Passenger Car Diesel Engine with Second Generation Direct Injection,” Society of Automotive Engineers, 900648 1990
- Ayres Greg “Consumer Incentives to Reduce Greenhouse Gas Emissions from Personal Automobiles,” Society of Automotive Engineers, 1999-01-1307 1999
- Lüders Hartmut Stommel Peter Geckler Sam “Diesel Exhaust Treatment- New Approaches to Ultra Low Emission Diesel Vehicles,” Society of Automotive Engineers, Society of Automotive Engineers, 1999-01-0108 1999
- Honda Insight 2000
- Adams James et al. “The Development of Ford's P2000 Fuel Cell Vehicle,” Society of Automotive Engineers, 2000-01-1061 2000
- Shayler P.J. Chick J.P. Eade D. “A Method of Predicting Brake Specific Fuel Consumption Maps,” Society of Automotive Engineers, 1999-01-0556 1999
- Stobart Richard K. “Fuel Cell Power for Passenger Cars-What Barriers Remain?,” Society of Automotive Engineers, 1999-01-0321 1999
- Toyota- Prius- Specifications toyota.com May 2000
- Mitchell William L. Hagan M. Parbhu S.K. “Gasoline Fuel Cell Power Systems for Transportation Applications: A Bridge to the Future of Energy,” Society of Automotive Engineers, 1999-01-0535 1999
- “Detroit Auto Show: Ballard Announces Production-Ready Fuel Cell Module, Hints at Factory Plans,” The Hydrogen & Fuel Cell Letter 1080-8019 2000
- “Detroit Auto Show: GM Rolls out Fuel Cell “Precept” Concept, Claims 500 Mile Range,” The Hydrogen & Fuel Cell Letter 1080-8019 2000
- “Fuel Squeeze Drives Interest in Concept Cars,” Environmental News Service 2000
- “Electric Assist,” Electomotive, Inc. 9131 Centreville Road, Manassas, VA 02110