| abstract |
A temperature of a fuel cell can be set to a desired temperature without using a large-capacity battery, and energy can be used efficiently. A hydrogen gas is supplied from a high-pressure hydrogen tank to a hydrogen storage alloy tank, and the hydrogen gas is stored in the hydrogen storage alloy tank. Since the hydrogen storage alloy tank 300 generates heat by storing the hydrogen gas, the generated heat is transmitted to the fuel cell 200 by the cooling water circulating between the hydrogen storage alloy tank 300 and the fuel cell 200. Thereby, the temperature of the fuel cell 200 can be increased. At the timing when the cooling water temperature Tw reaches the supply stop temperature Ttag before reaching the warm-up target temperature Ttag, the supply of hydrogen gas to the hydrogen storage alloy tank 300 is stopped. The supply amount of the hydrogen gas to the hydrogen storage alloy tank 300 can be reduced as compared with the case where the hydrogen gas is continuously supplied to the hydrogen storage alloy tank 300 until the temperature reaches the temperature Ttag. [Selection diagram] Fig. 1 |