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BATTERY STATE-OF-CHARGE MANAGEMENT METHOD

  • US 20110093223A1
  • Filed: 10/19/2010
  • Published: 04/21/2011
  • Est. Priority Date: 10/19/2009
  • Status: Active Grant
First Claim
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1. A method of managing a state of charge of a battery in a hybrid electric power system comprising a fuel cell, the method comprising:

  • defining a setpoint;

    calculating an estimated present state of charge of the battery using the battery current and the battery voltage; and

    regulating the state of charge of the battery by manipulating a fuel cell current supplied from the fuel cell to the battery based on the difference between the setpoint and the estimated present state of charge of the battery.

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