| 摘要 |
PROBLEM TO BE SOLVED: To suppress the lowering of the reliability of sensor determination using a sensor output of a pressure sensor which detects the gas pressure of a gas tank.SOLUTION: A fuel battery system 10 comprises: a hydrogen gas tank 110; a first gas pressure sensor 131 which detects the gas pressure of the hydrogen gas tank 110; and a second gas pressure sensor 132 which detects the gas pressure of a hydrogen gas supplied to a fuel battery 100 from the hydrogen gas tank 110. The fuel battery system 10 acquires a gas pressure difference ΔP between the detection gas pressure (filling-time gas pressure Pi ) of the first gas pressure sensor 131 which is filled with a gas, and the detection gas pressure (gas supply initial-stage gas pressure Po) of the second gas pressure sensor 132 in which the hydrogen gas is firstly supplied to the fuel battery 100 from the hydrogen gas tank 110 after the filling of the gas (step A130), and when the gas pressure difference ΔP is within a range of a prescribed threshold αp, the fuel battery system determines that there is no abnormality in an output in any of both the gas sensors (step S140).SELECTED DRAWING: Figure 2 |
