CPC H01M 8/0447 (2013.01) [H01M 8/04201 (2013.01); H01M 8/04805 (2013.01); H01M 8/0441 (2013.01); H01M 8/04156 (2013.01); H01M 8/04179 (2013.01); H01M 8/04231 (2013.01); H01M 8/04388 (2013.01); H01M 8/04395 (2013.01); H01M 8/04447 (2013.01); H01M 8/04455 (2013.01); H01M 8/04761 (2013.01)] | 4 Claims |
1. A method of controlling a fuel cell system comprising a fuel cell configured to generate power by using an oxygen-containing gas discharged from an air pump and supplied to a cathode through an inlet of a cathode flow field and a fuel gas supplied to an anode through an inlet of an anode flow field, the method comprising:
introducing a fuel exhaust gas discharged from an outlet of the anode flow field of the fuel cell into the inlet of the cathode flow field through a communication flow path;
estimating an amount of fuel gas discharged from an outlet of the cathode flow field, of the fuel exhaust gas that is introduced from the communication flow path to the inlet of the cathode flow field and then flows through the cathode;
calculating an amount of oxygen-containing gas necessary for dilution at a time of discharge into atmosphere, from an estimated amount of fuel gas; and
setting a discharge amount of the air pump, based on a calculated amount of oxygen-containing gas.
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