ADVANCED PROPULSION SYSTEM FOR HYBRID VEHICLES
A number of hybrid propulsion systems were evaluated for application in several different vehicle sizes. A conceptual design was prepared for the most promising configuration. Various system configurations were parametrically evaluated and compared, design tradeoffs performed, and a conceptual design produced. Fifteen vehicle/propulsion systems concepts were parametrically evaluated to select two systems and one vehicle for detailed design tradeoff studies. A single hybrid propulsion system concept and vehicle (five passenger family sedan)were selected for optimization based on the results of the tradeoff studies. The final propulsion system consists of a 65 kW spark-ignition heat engine, a mechanical continuously variable traction transmission, a 20 kW permanent magnet axial-gap traction motor, a variable frequency inverter, a 386 kg lead-acid improved state-of-the-art battery, and a transaxle. The system was configured with a parallel power path between the heat engine and battery. It has two automatic operational modes: electric mode and heat engine mode. Power is always shared between the heat engine and battery during acceleration periods. In both modes, regenerative braking energy is absorbed by the battery.
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Corporate Authors:
AiResearch Manufacturing Company
2525 West 190th Street
Torrance, CA United States 90509National Aeronautics and Space Administration
600 Independence Avenue, SW
Washington, DC United States 20546 -
Authors:
- Norrup, L V
- Lintz, A T
- Publication Date: 1980-1
Media Info
- Pagination: 213 p.
Subject/Index Terms
- TRT Terms: Alternatives analysis; Cost estimating; Design; Electric batteries; Energy resources; Estimates; Hybrid automobiles; Hybrid vehicles; Motors; Optimization; Propulsion; Spark ignition engines; Traction; Vehicle power plants
- Uncontrolled Terms: Energy sources; Propulsion systems
- Old TRIS Terms: Hybrid propulsion; Optimum design
- Subject Areas: Design; Energy; Highways; Vehicles and Equipment; I96: Vehicle Operating Costs;
Filing Info
- Accession Number: 00318667
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NASA-CR-159771 Final Rpt., DOE/NASA/0091-80/1
- Contract Numbers: DEN3-91, EC-77-A-31-1044
- Files: TRIS
- Created Date: Oct 27 1981 12:00AM