DESIGN TRADEOFF STUDIES AND SENSITIVITY ANALYSIS, APPENDIX B

Further work was performed on the Near Term Hybrid Passenger Vehicle Development Program. Fuel economy on the order of 2 to 3 times that of a conventional vehicle, with a comparable life cycle cost, is possible. The two most significant factors in keeping the life cycle cost down are the retail price increment and the ratio of battery replacement cost to battery life. Both factors can be reduced by reducing the power rating of the electric drive portion of the system relative to the system power requirements. The type of battery most suitable for the hybrid, from the point of view of minimizing life cycle cost, is nickel-iron. The hybrid is much less sensitive than a conventional vehicle is, in terms of the reduction in total fuel consumption and resultant decreases in operating expense, to reductions in vehicle weight, tire rolling resistance, etc., and to propulsion system and drivetrain improvements designed to improve the brake specific fuel consumption of the engine under low road load conditions. It is concluded that modifications to package the propulsion system and battery pack can be easily accommodated within the confines of a modified carryover body such as the Ford Ltd.

  • Supplemental Notes:
    • Sponsored by NASA Prepared for JPL.
  • Corporate Authors:

    South Coast Technology, Incorporated

    Santa Barbara, CA  United States 

    National Aeronautics and Space Administration

    600 Independence Avenue, SW
    Washington, DC  United States  20546
  • Publication Date: 1979-5-25

Media Info

  • Pagination: 251 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00318692
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-CR-163036, JPL-9950-355-APP-B
  • Contract Numbers: JPL-955189
  • Files: TRIS
  • Created Date: Oct 27 1981 12:00AM