FUEL CELL SYSTEM

A fuel cell system comprising: the fuel cell, the secondary cell and a controller, wherein, when a power generation pretreatment of the fuel cell is carried out, and when there is a request from the fuel cell to run the vehicle by output power of the secondary cell, the controller calculates discharge permission energy of the secondary cell, calculates a running permission delay request time from the discharge permission energy, which is a time necessary from the request to run the vehicle to the permission to run the vehicle, and measures a running permission delay time, which is a time that elapsed from the request to run the vehicle, and wherein, when the running permission delay request time value is smaller than the running permission delay time value, the controller permits the vehicle to run.