| 摘要 |
Weld of a relay provided on an electric power supply path can be suppressed. When a fuel cell system starts, a controller sets an output voltage of a Bat converter at an open circuit voltage of a battery and sets an output voltage of a FC converter at an open circuit voltage of a fuel cell. When the output voltage of the FC converter is lower than the output voltage of the Bat converter, the controller controls to boost the output voltage of the FC converter to the output voltage of the Bat converter. On the other hand, when the output voltage of the FC converter is the output voltage of the Bat converter or more, the controller controls to boost the output voltage of the Bat converter to the output voltage of the FC converter. When the output voltage difference between the FC converter and the Bat converter is a predetermined value or less capable of turning the FC relays ON without causing welding of the FC relays, the controller turns the FC relays ON.
|
