| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a door from being erroneously locked/unlocked by the unintended change of a locking/unlocking state due to a shock caused by a sudden closure of the door. <P>SOLUTION: A lock detection switch 2 and an opening/closing detection switch 3 are installed to a door. Switch signals are inputted in a door lock controller 1. The door lock controller 1 has a CPU 11, a memory 12, and a timer 13. The locking/unlocking state immediately before the closure of the door is stored as a signal S1'of the lock detection switch 2 and the signal S1 of the lock detection switch 2 read within a specified time interval after the closure of the door is compared with the stored signal S1' and when they are different from each other, Priority is given to the stored S1' signal to control a door lock actuator 5 to lock/unlock the door. Accordingly, the locked/unlocked state is changed in an unintended manner by the shock at the operation to close the door and hence the erroneous locking/unlocking of the door is prevented. <P>COPYRIGHT: (C)2004,JPO</p> |
