| 摘要 |
A method checks the gas tightness of a fuel cell system which has a fuel cell and a container for storing hydrogen gas. The container is connected to the fuel cell via a line along which a pressure sensor is arranged to measure a pressure of hydrogen gas flowing to the fuel cell. A quantity of hydrogen gas flowing to the fuel cell is calculated by a quantity/pressure relationship which describes a relationship between the pressure and the quantity of hydrogen gas. A current which is generated by the fuel cell is measured and a quantity of hydrogen gas which has been converted into electricity by the fuel cell is calculated by a quantity/current relationship which describes a relationship between the current generated by the fuel cell and the quantity of burnt hydrogen gas. The calculated quantities of hydrogen gas are compared with one another. |
