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Apparatus for compensating for torque of fuel cell electric vehicle and method thereof

  • US 9,469,197 B2
  • Filed: 05/01/2015
  • Issued: 10/18/2016
  • Est. Priority Date: 11/26/2014
  • Status: Active Grant
First Claim
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1. An apparatus for compensating for torque of a fuel cell electric vehicle, the apparatus comprising:

  • a storage configured to store a first look-up table in which pedal amount correction coefficients corresponding to degradation rates of a fuel cell stack are recorded and a second look-up table in which torques corresponding to pedal amounts are recorded;

    a degradation rate calculator configured to calculate a degradation rate (α

    ) based on a maximum voltage (VP) and an output voltage (VO) of the fuel cell stack;

    a correction coefficient searcher configured to search for a correction coefficient (β

    ) corresponding to the calculated degradation rate using the first look-up table;

    a pedal amount detector configured to detect a pedal amount (Pb) indicating a degree to which an acceleration pedal is pressed; and

    a torque compensator configured to compensate for torque by compensating for the detected pedal amount based on the searched correction coefficient using the second look-up table.

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