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Hybrid electric vehicle incorporating an integrated propulsion system

  • US 6,330,925 B1
  • Filed: 11/24/1997
  • Issued: 12/18/2001
  • Est. Priority Date: 01/31/1997
  • Status: Expired due to Term
First Claim
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1. A hybrid electric vehicle drive system, comprising:

  • a combustion engine;

    an electric motor; and

    at least one nickel metal hydride battery module providing electric power to said electric motor, said at least one nickel metal hydride battery module having an internal resistance effective to provide a peak power density in relation to an energy density as defined by;

    P>

    1,420−

    16E, with P greater than 600 Watts/kilogram, where P is the peak power density as measured in Watts/kilogram and E is the energy density as measured in Watt-hours/kilogram.

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