This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of Data from Electric and Hybrid Electric Vehicle Student Competitions
Annotation ability available
Sector:
Language:
English
Abstract
The U.S. Department of Energy sponsored several student engineering competitions in 1993 that provided useful information on electric and hybrid electric vehicles. The electrical energy usage from these competitions has been recorded with a custom-built digital meter installed in every vehicle and used under controlled conditions. When combined with other factors, such as vehicle mass, speed, distance traveled, battery type, and type of components, this information provides useful insight into the performance characteristics of electrics and hybrids. All the vehicles tested were either electric vehicles or hybrid vehicles in electric-only mode, and had an average energy economy of 7.0 km/kWh. Based on the performance of the “ground-up” hybrid electric vehicles in the 1993 Hybrid Electric Vehicle Challenge, data revealed a 1 km/kWh energy economy benefit for every 133 kg decrease in vehicle mass. By running all the electric vehicles at a competition in Atlanta at several different constant speeds, the effects of rolling resistance and aerodynamic drag were evaluated. On average, these vehicles were 32% more energy efficient at 40 km/h than at 72 km/h. The results of the competition data analysis confirm that these engineering competitions not only provide an educational experience for the students, but also show technology performance and improvements in electric and hybrid vehicles by setting benchmarks and revealing trends.
Citation
Wipke, K., Hill, N., and Larsen, R., "Analysis of Data from Electric and Hybrid Electric Vehicle Student Competitions," SAE Technical Paper 940557, 1994, https://doi.org/10.4271/940557.Also In
Advancements in Electric and Hybrid Electric Vehicle Technology
Number: SP-1023; Published: 1994-03-01
Number: SP-1023; Published: 1994-03-01
References
- Wills, R. “Technical Report for 1993 American Tour de Sol,” Northeast Sustainable Energy Association Conference Greenfield, MA 1993
- Proctor, R. “Catching the Dream,” Home Power #37 October November 1993
- Cruising Equipment Co. “Installation Manual: KiloWatt-Hour+ Meter,” Seattle, WA February 1993
- Fleming, A. “Putting Fuel on the Line, Weight Reduction is Key to Achieving Tomorrow's Rules for Fuel Economy,” Automotive News November 29 1993
- Ford Motor Company 1993 Hybrid Electric Vehicle Challenge, Rules and Regulations Ford Motor Company Dearborn, MI June 1993
- Lovins, A. B. Barnett, J. W. Lovins, L. H. “Supercars, the Coming Light-Vehicle Revolution,” European Council for an Energy-Efficient Economy Rungstedgard, Denmark June 1993
- Office of Technology Assessment Improving Automobile Fuel Economy: New Standards, New Approaches U.S. Congress Washington DC 1991
- Adler, U. Automotive Handbook 2nd Robert Bosch GmbH Federal Republic of Germany 1986
- Brasch, P. “A Precision DC Energy Monitor for Electric Vehicles,” WESCON/93 IEEE Conference Proceedings 1993
- Centre for Analysis and Dissemination of Demonstrated Energy Technologies Electric Vehicle Directory , Electric Vehicle Progress New York, NY October 1991