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  USA  90509

    National Aeronautics and Space Administration

    600 Independence Avenue, SW
    Washington, DC  USA  20546
  • Authors:
    • Norrup, L V
    • Lintz, A T
  • Publication Date: 1980-1

Media Info

  • Pagination: 213 p.

Subject/Index Terms

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