| 摘要 |
A fuel cell system has an inlet shutoff valve (20) provided in a main route (30) forming an oxidizing gas supply flow path (14), a humidifier bypass valve (18) provided in a humidifier bypass route (32) which is a route bypassing the main route (30), a fuel cell bypass valve (38) provided in a fuel cell bypass route (36) bypassing a fuel cell stack (12), and a fuel cell bypass valve controlling means. In abnormality when one of the inlet shutoff valve (20) and the humidifier bypass valve (18) does not function even if the pressure in a valve opening pressure chamber (52) of the one of the valves is a first pressure, the fuel cell bypass valve controlling means restricts the opening of the fuel cell bypass valve (38) to increase the pressure in the valve opening pressure chamber (52). |
