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Hybrid power system for an electric vehicle

  • US 6,744,237 B2
  • Filed: 03/28/2002
  • Issued: 06/01/2004
  • Est. Priority Date: 03/28/2002
  • Status: Active Grant
First Claim
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1. A hybrid power system for supplying power to a load, comprising:

  • an energy storage device; and

    , a fuel cell system wherein said energy storage device supplies all of said power when a state of charge of said energy storage device is greater than a first predetermined state of charge and said fuel cell system provides at least a portion of said power when said state of charge of said energy storage device is less than or equal to said first predetermined state of charge.

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