| 摘要 |
In the fuel cell system (1), instead of directly measuring the state of fuel, the state of fuel is deemed to have changed if there is a change in the moving average of voltage outputted from the cell stack (5) in a rated operating state in which the sweep current of the cell stack (5) is constant. Therefore, it is possible to simplify the structure required to assess the existence of a change in the state of fuel, compared with conventional methods which measure a plurality of factors pertaining to the state of fuel. |
