| 摘要 |
PROBLEM TO BE SOLVED: To enable accurate detection of both of hydrogen gas pressure at the upstream of an injector and hydrogen gas pressure at the downstream of the injector while reducing the cost of a fuel battery system.SOLUTION: A fuel battery system A including: a fuel battery stack 10; a hydrogen gas source 32; a hydrogen gas supply passage 31 for joining the fuel battery stack 10 and the hydrogen gas source 32; and upstream side and downstream side injectors 35U, 35D disposed in the hydrogen gas supply passage, supplies the fuel battery stack 10 with hydrogen gas from a hydrogen gas source 32 by using the upstream side and downstream side injectors 35U, 35D. A pressure sensor 69 for detecting the hydrogen gas pressure in the hydrogen gas supply passage between the upstream side injector and the downstream side injector is further provided. When the hydrogen gas pressure at the upstream of the upstream side injector is detected, the output of the pressure sensor when the valve of the upstream side injector is opened is taken in. When the hydrogen gas pressure at the downstream of the downstream side injector is detected, the output of the pressure sensor when the valve of the downstream side injector is opened is taken in. |
