FUEL CELL SYSTEM, MOBILE UNIT EQUIPPED WITH THE SYSTEM, AND CONTROL METHOD FOR THE FUEL CELL SYSTEM

摘要

A fuel cell system FC replenishes a fuel cell stack with air or hydrogen by temporarily driving a compressor 41 or a low-pressure valve 24 even during a n intermittent operation mode. If air is supplied for replenishment, the amoun t of air remaining in an air supply system is kept substantially constant, so that the voltage fall during a stop of the fuel cell system can be curbed. I f hydrogen is supplied for replenishment, the amount of hydrogen moving to the air supply system is offset, so that a delay in supplying hydrogen can be curbed. Furthermore, the fuel cell system FC inputs signals from a brake sensor 102, a shift selector 104, etc., and anticipates acceleration of a vehicle equipped with the system FC. On the basis of the anticipation of acceleration, the system FC replenishes the fuel cell stack with air or hydrogen in advance.