PRELIMINARY POWER TRAIN DESIGN FOR A STATE-OF-THE-ART ELECTRIC VEHICLE

The state-of-the-art (SOTA) of electric vehicles built since 1965 was reviewed to establish a base for the preliminary design of a power train for a SOTA electric vehicle. The performance of existing electric vehicles were evaluated to establish preliminary specifications for a power train design using state-of-the-art technology and commercially available components. Power train components were evaluated and selected using a computer simulation of the SAE J227a Schedule D driving cycle. Predicted range was determined for a number of motor and controller combinations in conjunction with the mechanical elements of power trains and a battery pack of sixteen lead-acid batteries - 471.7 kg at 0.093 MJ/Kg (1040 lbs. at 11.7 Whr/lb). On the basis of maximum range and overall system efficiency using the Schedule D cycle, an induction motor and 3 phase inverter/controller was selected as the optimum combination when used with a two-speed transaxle and steel belted radial tires. The predicted Schedule D range is 90.4 km (56.2 mi). Four near term improvements to the SOTA were identified, evaluated, and predicted to increase range approximately 7%.

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  • Corporate Authors:

    Rohr Industries, Incorporated

    P.O. Box 878
    Chula Vista, CA  United States  92012

    Department of Energy

    1000 Independence Avenue, SW
    Washington, DC  United States  20585

    Department of the Navy

    The Pentagon
    Washington, DC  United States  20350
  • Authors:
    • Ross, J A
    • Wooldridge, G A
  • Publication Date: 1978-4

Media Info

  • Pagination: 222 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00185804
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • ISBN: NASA-CR-135340
  • Report/Paper Numbers: NASA-CR-153340 Final Rpt., HS-022 990
  • Contract Numbers: NA53-20592, EC-77-A-31-1044
  • Files: HSL, TRIS
  • Created Date: Dec 29 1983 12:00AM