Electronic door locking system for an automotive vehicle

Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids

Patent

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Details

70262, 180287, 307 10AT, E05B 4900

Patent

active

044197128

ABSTRACT:
An electronic door locking system for an automotive vehicle with which vehicle doors can be locked, by depressing a proper push-button type switch representative of a predetermined door-locking digit, only when an ignition key is brought near the switch. Therefore, it is possible to lock vehicle doors without leaving the ignition key in the keyhole, with the result that the vehicle can be prevented from being stolen by a thief when parked. The electronic door locking system according to present invention comprises means for detecting the presence of the ignition key brought near the switch and an AND gate for passing a locking command signal to a door lock/unlock actuating solenoid only when the presence of the key is detected, in addition to the conventional electronic door locking system.

REFERENCES:
patent: 3399554 (1968-09-01), Hogue
patent: 3633167 (1972-01-01), Hedin
patent: 3691396 (1972-09-01), Hinrichs
patent: 3764859 (1973-10-01), Wood
patent: 3831065 (1974-08-01), Martin et al.
patent: 4189712 (1980-02-01), Lemelson
patent: 4240516 (1980-12-01), Henderson et al.

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