Patent ID: 6621406
Filing Date: 2003-09-16
Classification: B60R,G07C,H01Q,Y10T

Abstract:
A keyless entry system for a vehicle, wherein an electronic key is activated when said electronic key receives an activation signal transmitted from said vehicle, said electronic key transmits an encrypted signal to said vehicle after judging that said activation signal is a regular signal, and said keyless entry system carries out predetermined control for vehicle-mounted devices after judging that said ecrypted signal is a regular signal,said keyless entry system being characterized in that detection distance setting means for changing a detection distance within which said electronic key can receive said activation signal is provided on said vehicle and that by carrying out predetermined operations said keyless entry system enters an adjustment mode wherein said detection distance can be changed by said detection distance setting means; and wherein said predetermined operations are a predefined number or more times of brake pedal operations and a predetermined number or more times of outer handle operations within a predetermined time, and said keyless entry system enters said adjustment mode by carrying out said predetermined operations.