| 摘要 |
<p>PROBLEM TO BE SOLVED: To prohibit a door from being locked when an ignition key is inserted in an ignition key cylinder while depressing a control switch of the ignition key to operate, when a person drives a car. SOLUTION: When a control circuit receives a control signal for releasing a door lock with a receiving device in such a state that a door is closed and that an ignition key is not inserted (step S1-4), a lock signal is outputted in a point when reception of the control sign is completed (step S8 and S9), and the lock signal is not outputted when the ignition key is inserted before reception of the control signal is completed (step S7). After the ignition key is inserted, the control circuit can not accept the control signal based on the fact that the ignition key is inserted. By the constitution, when a person drives a car, the door is not locked even if the ignition key is inserted in an ignition key cylinder by mistake while controlling a control switch.</p> |
