Vehicular fuel cell system and method of controlling the same

A vehicular fuel cell system comprising:

• a collision detector configured to detect collision on front and rear sides of a vehicle;
• a voltage unit arranged on one side of the front and rear sides of the vehicle and having a voltage;
• a voltage controller arranged on the one side and configured to control the voltage unit;
• a hydrogen supply unit arranged on the other side of the front and rear sides of the vehicle and configured to supply hydrogen to a fuel cell stack;
• and
• a supply valve controller arranged on the other side and configured to control a hydrogen supply valve, the hydrogen supply valve being configured to shut off a supply path of hydrogen from the hydrogen supply unit to the fuel cell stack,
• wherein the supply valve controller is programmed to, when collision is detected by the collision detector, perform discharging control for discharging the voltage unit on the one side, and the voltage controller is programmed to, when collision is detected by the collision detector, perform shut-off control for bringing the hydrogen supply valve on the other side into a closed state.