Patent ID: 10490831

Abstract:
It is possible to suppress errors remaining in the measurement by a pressure sensor. A fuel cell system includes a fuel cell, a tank storing fuel gas, a fuel gas supply flow path feeding the fuel gas from the tank to the fuel cell, a first pressure reduction unit reducing pressure of the fuel gas and feeding the fuel gas, a first pressure sensor measuring pressure in the fuel gas supply flow path, a second pressure sensor measuring pressure in the fuel gas supply flow path, a switching valve switching execution and stop of supply of the fuel gas, a correction unit correcting the first pressure sensor based on a second measurement value measured by the second pressure sensor, and a controller controlling the fuel cell system. The controller performs, when the switching valve stops supply of the fuel gas and a first measurement value is larger than a predetermined value, pressure reduction processing to make the first measurement value equal to or smaller than the predetermined value, and then controls the correction unit to correct the first pressure sensor.