Patent ID: 8054158
Filing Date: 2011-11-08
Classification: G07C

Abstract:
1. An on-vehicle equipment control system for on-vehicle equipment, comprising: a portable device that returns a response signal including an ID code in response to a request signal received thereby; and a vehicle unit that transmits the request signal from a vehicle for performing mutual communication with the portable device, receives the response signal of the portable device, matches the ID code included in the response signal with an ID code stored therein, and controls the on-vehicle equipment in response to matching-OK indicating that the ID codes are in a predetermined relation, wherein the vehicle unit comprises: a receiver that receives the response signal from the portable device; an external transmitter that transmits the request signal to an outside of a vehicle compartment; a trigger switch that is provided in a vehicle door and commands automatic locking of the vehicle door; and a control unit that causes the external transmitter to transmit the request signal when the vehicle door is opened and closed, stores in a memory the matching-OK as a result of matching the response signal received from the portable device and the request signal of the external transmitter, and controls locking of the vehicle door when the trigger switch is operated, the control unit locking the vehicle door in response to an operation of the trigger switch without causing the external transmitter to transmit the request signal when the matching-OK is stored in the memory before the operation of the trigger switch, and locking the vehicle door after causing the external transmitter to transmit the request signal when no matching-OK is stored in the memory before the operation of the trigger switch and confirming newly the matching-OK; wherein the control unit deletes a stored matching-OK when a first predetermined time has elapsed time from previous storing of the matching-OK, causes the external transmitter to transmit the request signal, and stores newly the matching-OK when matching of the ID codes is confirmed based on the response signal received newly; and wherein the control unit causes the external transmitter to transmit the request signal each time a second predetermined time elapses if no matching-OK is stored therein after the vehicle door is opened and closed, and stores the matching-OK based on the response signal to the request signal.