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COOLANT FLOW PULSING IN A FUEL CELL SYSTEM

  • US 20140120440A1
  • Filed: 10/25/2012
  • Published: 05/01/2014
  • Est. Priority Date: 10/25/2012
  • Status: Abandoned Application
First Claim
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1. A method for controlling a coolant pump in a fuel cell system, said method comprising:

  • determining whether a stack power request for a fuel cell stack is below a first threshold value;

    utilizing said stack power request to determine an off time value for said coolant pump that provides coolant to said fuel stack; and

    generating, by a processor, a coolant pump control command that causes said coolant pump to stop providing coolant to said fuel stack during said off time and to provide coolant to said fuel stack during an on time, said coolant pump control command continuing as long as said stack power request is below said first threshold value.

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