| 摘要 |
<p>PURPOSE:To prevent the ignition of gas retained in the interior in association with the operation of an electric switch by maintaining a door in the closed state by a door open state regulating means in the case of gas fuel having leaked in the non-operated state of an engine and in the non-existing state of occupants in an automobile using gas fuel. CONSTITUTION:When the leakage of hydrogen gas to be supplied to an engine is detected by either one of detection output signals S6-S8, a control unit 50 supplies a control signal to a warning lamp 20 to let it blink. In the case of detection output signals S2-S5 indicating the nonexistence of occupants seated in an assistant's seat and rear seats at this time, the control unit 50 supplies control signals CA, CB to actuators 28, 30 regardless of the operating state of door key switches 24, 34 and an actuator switch 29. Motor-driven door lock mechanisms 30, 40 are thereby operated to place the door lock knobs on the driver's seat side and assistant's seat side into the locked state.</p> |
