FUEL CELL SYSTEM AND METHOD FOR CONTROLLING SAME

A fuel cell system for a vehicle with a fuel cell that generates electricity through a supply of anode gas and cathode gas is provided. The fuel cell system includes an idle stop execution unit configured to stop an idling of the fuel cell system according to a vehicle running state, a compressor control unit configured to execute a stop control on a cathode compressor during the idle stop, and an external air introduction control unit configured to restrain an introduction of external air to the fuel cell during the idle stop, wherein the external air introduction control unit is configured to release restraining the introduction of external air according to a voltage in the fuel cell during the idle stop.