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.

• Corporate Authors:

  AiResearch Manufacturing Company

  2525 West 190th Street
  Torrance, CA  United States  90509

  National 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