| 摘要 |
A fuel cell system for use in transportation equipment, for example, can determine an abnormality in its fuel supply device without additional detectors being provided for abnormality detection. The fuel cell system is mounted on a motorbike, and includes a cell stack which includes a plurality of fuel cells, an aqueous solution pump arranged to supply aqueous methanol solution to the cell stack, a controller which includes a CPU, an inflow temperature sensor arranged to detect a temperature of aqueous methanol solution which is introduced to the cell stack, and an outflow temperature sensor arranged to detect a temperature of aqueous methanol solution discharged from the cell stack. The CPU obtains an inflow outflow temperature difference by calculating a difference between a detection result from the inflow temperature sensor and a detection result from the outflow temperature sensor. Then, the CPU compares the inflow outflow temperature difference to a predetermined value, and thereby determines whether or not there is any abnormality in the aqueous solution pump.
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