| 摘要 |
Embodiments of the present invention relate to a method and a device for starting a fuel cell vehicle. The method includes the steps of: detecting an ignition signal of a fuel cell vehicle to maintain a start state of the vehicle; measuring by a stack input terminal hydrogen pressure sensor and measuring by a stack output terminal hydrogen pressure sensor; determining whether an absolute value of a difference between a measured value of the stack input terminal hydrogen pressure sensor and a measured value of the stack output terminal hydrogen pressure sensor is less than a predetermined set value; determining whether an outdoor temperature value is a value of less than 0 degree if the absolute value is equal to or greater than the set value; calculating the difference as an offset value of a hydrogen pressure of the stack input terminal if the outdoor temperature value is a value of less than 0 degree; adding the offset value of the hydrogen pressure of the stack input terminal to a predetermined hydrogen supply pressure command signal to generate a hydrogen supply pressure re-command signal; and controlling an operation of a hydrogen supply valve according to the hydrogen supply pressure re-command signal. Therefore, the present invention can maintain a start state of the vehicle through a start procedure of the vehicle even though the hydrogen pressure sensors are frozen. |
