AN ELECTRIC VEHICLE PROPULSION SYSTEM'S IMPACT ON BATTERY PERFORMANCE: AN OVERVIEW
The performance of two types of batteries, lead-acid and nickel-zinc, was measured as a function of the charging and discharging demands anticipated from electric vehicle propulsion systems. The benefits of rapid high current charging were mixed: although it allowed quick charges, the energy efficiency was reduced. For low power (overnight) charging the current wave shapes delivered by the charger to the battery tended to have no effect on the battery cycle life. The use of chopper speed controllers with series traction motors resulted in a significant reduction in the energy available from a battery whenever the motor operates at part load. The demand placed on a battery by an electric vehicle propulsion system containing electrical regenerative braking confirmed significant improvment in short term performance of the battery.
- Presented at the 3D Intern. Elec. Vehicle Exposition and Conf., St. Louis, 20-22 May 1980.
Department of the NavyThe Pentagon
Washington, DC United States 20350
- Bozek, J M
- Smithrick, J J
- Cataldo, R C
- Ewashinka, J G
- Publication Date: 1980
- Pagination: 10 p.
- TRT Terms: Battery chargers; Economic efficiency; Electric batteries; Electric discharge; Electric vehicles; Energy conversion; Lead acid batteries; Nickel zinc batteries; Performance; Propulsion; Thermal efficiency; Time duration; Vehicle power plants
- Uncontrolled Terms: Efficiency; Energy efficiency; Propulsion systems; Short term
- Old TRIS Terms: Charging
- Subject Areas: Economics; Energy; Highways; Vehicles and Equipment; I96: Vehicle Operating Costs;
- Accession Number: 00318301
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-TM-81515, DOE/NASA/1044-7
- Contract Numbers: EC-77-A-31-1044
- Files: TRIS
- Created Date: Sep 16 1981 12:00AM