Patent ID: 8089343
Filing Date: 2012-01-03
Classification: B60R,G07C

Abstract:
1. A smart entry system comprising a vehicle-side unit and a plurality of portable devices, the vehicle-side unit including: each of the plurality of portable devices having a discrimination code different from each other, each of the plurality of portable devices configured to transmit a response signal including an ID code in response to the request signal from the vehicle-side unit, wherein: when all of doors of the vehicle are locked, the discrimination code storing portion controls the interior transmitter to transmit the request signal, and when the receiver receives the response signal from a first portable device of the plurality of portable devices and the discrimination code storing portion receives the discrimination code of the first portable device through a communication of the first portable device, the discrimination code storing portion stores the discrimination code of the first portable device; when the vehicle is parked in a state where all of the doors are locked, the unlock permitting portion controls the exterior transmitter to periodically-transmit the request signal, and when the receiver receives the response signal from a second portable device of the plurality of portable devices and the unlock permitting portion receives the discrimination code of the second portable device through a communication with the second portable device, the unlock permitting portion controls the exterior transmitter to continue to periodically-transmit the request signal on a condition that the discrimination code of the second portable device is different from the discrimination code of the first portable device stored in the discrimination code storing portion; when the exterior transmitter periodically-transmits the request signal, the receiver receives the response signal from a third portable device of the plurality of portable devices and the ID code included in the response signal corresponds to an ID code previously registered in the vehicle-side unit, the unlock permitting portion permits an unlocking of one of the doors which a user having the third portable device approaches; and the unlocking portion unlocks the one of the doors based on a permission by the unlock permitting portion.