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METHOD OF CONTROLLING OPERATION MODE OF FUEL CELL IN FUEL CELL VEHICLE

  • US 20140336855A1
  • Filed: 08/16/2013
  • Published: 11/13/2014
  • Est. Priority Date: 05/07/2013
  • Status: Active Grant
First Claim
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1. A method of controlling an operation mode of a fuel cell in a fuel cell vehicle, comprising:

  • determining by a controller a first torque and a first state of charge (SOC) corresponding to a stop mode torque value and a stop mode SOC value, and determining by a controller a second torque and a second SOC corresponding to a start mode torque value and a start mode SOC value, wherein the second torque is higher than the first torque and the second SOC is lower than the first SOC;

    when a driver-demanded torque is lower than the first torque, and a current SOC in a battery is higher than the first SOC, converting by the controller the operation mode of the fuel cell to a stop mode; and

    when the driver-demanded torque is higher than the second torque, or the current SOC in the battery is lower than the second SOC, converting by the controller the operation mode of the fuel cell to a start mode.

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