Patent ID: 9614235
Date: 2017-04-04
CPC Classifications: H01M,Y02E

Claim:
1. A fuel cell system comprising: a fuel gas tank for supplying a fuel cell with fuel gas; a purge valve for purging fuel gas from a fuel gas electrode of the fuel cell; a diluting device for diluting the fuel gas discharged from the purge valve with an oxidizing gas, wherein the diluting device is connected to the purge valve, and the diluting device is configured to discharge the fuel gas discharged by the purge valve after dilution with the oxidizing gas; a pressure sensor that detects pressure of the fuel gas upstream of the purge valve, downstream of the purge valve or both upstream and downstream of the purge valve; and an electronic control unit with control logic, which is programmed to: wherein when the operation abnormality of the purge valve is detected, the electronic control unit is programmed to change a quantity of the oxidizing gas to be larger than the supplied quantity corresponding to the required output quantity and to supply the changed quantity of the oxidizing gas to the fuel cell.