Patent ID: 7425886

Claim:
A smart entry system for a vehicle, comprising: an onboard transmitter operative to transmit a request signal; a portable device operative to transmit an ID signal when receiving the request signal from the onboard transmitter; an onboard receiver operative to receive the ID signal from the portable device; a door control device operative to unlock a door when ID verification is confirmed, the ID verification being conducted based on the ID signal received by the onboard receiver that is transmitted by the portable device in response to the request signal that is transmitted outside the vehicle by the onboard transmitter at least when an unlock operation of the door from outside the vehicle is detected; an engine control device operative to start an engine of the vehicle when ID verification is confirmed, the ID verification being conducted based on the ID signal received by the onboard receiver that is transmitted by the portable device in response to the request signal that is transmitted inside the vehicle by the onboard transmitter when an engine start switch is operated; and a disablement control device operative to disable said ID verification with the portable device at the operation of the engine start switch when ID verification is confirmed, the ID verification being conducted based on the ID signal received by the onboard receiver that is transmitted by the portable device in response to the request signal that is transmitted inside the vehicle by the onboard transmitter when the door is locked, wherein said disablement control device is configured to prohibit or cancel said disablement of the ID verification with the portable device in a specified state.