A smart entry system includes a vehicle-side unit and a plurality of portable devices. Each of the portable devices has a discrimination code different from each other. When a first portable device is locked in a vehicle compartment, the discrimination code of the first portable device is stored in
A smart entry system includes a vehicle-side unit and a plurality of portable devices. Each of the portable devices has a discrimination code different from each other. When a first portable device is locked in a vehicle compartment, the discrimination code of the first portable device is stored in the vehicle-side unit. When the vehicle is parked in a state where all of the doors are locked, the vehicle-side unit transmits a request signal to an exterior communication area provided at an outside of the vehicle, and when the vehicle-side unit receives a response signal from a second portable device and the discrimination code of the second portable device is different from the discrimination code of the first portable device stored in the vehicle-side unit, the vehicle-side unit permits an unlock of the doors of the vehicle.
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1. A smart entry system comprising a vehicle-side unit and a plurality of portable devices, the vehicle-side unit including: an exterior transmitter configured to transmit a request signal to an exterior communication area provided at an outside of a vehicle;an interior transmitter configured to tra
1. A smart entry system comprising a vehicle-side unit and a plurality of portable devices, the vehicle-side unit including: an exterior transmitter configured to transmit a request signal to an exterior communication area provided at an outside of a vehicle;an interior transmitter configured to transmit a request signal to an interior communication area provided in a vehicle compartment of the vehicle;a receiver;a discrimination code storing portion;an unlock permitting portion; andan unlocking portion,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; andthe unlocking portion unlocks the one of the doors based on a permission by the unlock permitting portion. 2. The smart entry system according to claim 1, wherein: each of the plurality of the portable devices has the ID code different from each other; andthe discrimination code storing portion stores the ID code as the discrimination code. 3. The smart entry system according to claim 1, wherein: each of the plurality of the portable devices has a key number code indicating a key number of each of the plurality of portable devices; andthe discrimination code storing portion stores the key number code as the discrimination code. 4. The smart entry system according to claim 1, wherein the discrimination code storing portion is configured to try the communication for receiving the discrimination code with all of the plurality of portable devices. 5. A smart entry system comprising a vehicle-side unit and a plurality of portable devices, the vehicle-side unit includes: an exterior transmitter configured to transmit a request signal to an exterior communication area provided at an outside of a vehicle;an interior transmitter configured to transmit a request signal to an interior communication area provided in a vehicle compartment of the vehicle;a receiver;a discrimination code storing portion;an operated portion attached to one of doors of the vehicle to be operated by a user for unlocking the one of the doors;a first unlock control portion; anda second unlock control portion,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 the doors 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 discrimination code storing portion receives the discrimination code of the first portable device through a communication with 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 first unlock control 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, the first unlock control portion receives the discrimination code of the second portable device through a communication with the second portable device, and the discrimination code of the second portable device corresponds to the discrimination code of the first portable device stored in the discrimination code storing portion, the first unlock control portion controls the exterior transmitter to stop periodically-transmitting the request signal;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, the ID code included in the response signal corresponds to an ID code previously registered in the vehicle-side unit, and a user having the third portable device operates the operated portion, the first unlock control portion unlocks the one of the doors; andwhen the exterior transmitter stops periodically-transmitting the request signal and the operated portion is operated, the second unlock control portion controls the exterior transmitter to transmit the request signal, and when the receiver receives the response signal from a fourth portable device of the plurality of portable devices, the second unlock control portion receives the discrimination code of the fourth portable device through a communication with the fourth portable device, the discrimination code of the fourth portable device is different from the discrimination code of the first portable device stored in the discrimination code storing portion, and the ID code included in the response signal corresponds to the ID code previously registered in the vehicle-side unit, the second unlock control portion unlocks the one of the doors. 6. The smart entry system according to claim 5, wherein: the exterior transmitter is disposed at each of the doors;the operated portion is attached to each of the doors; andthe request signal is transmitted from only the exterior transmitter disposed at one of the doors which is attached with the operated portion operated by a user. 7. The smart entry system according to claim 5, wherein: each of the plurality of the portable devices has a key number code indicating a key number of each of the plurality of portable devices;the discrimination code storing portion stores the key number code as the discrimination code; andthe second unlock control portion removes a portable device of the plurality of portable devices whose key number code is stored in the discrimination code storing portion from a list of portable devices with which the second unlock control portion tries to communicate. 8. The smart entry system according to claim 7, wherein the second unlock control portion determines priorities of the portable devices with which the second unlock control portion tries to communicate based on a past usage record of each of plurality of portable devices. 9. The smart entry system according to claim 5, wherein: each of the plurality of portable devices has the ID code different from each other; andthe discrimination code storing portion stores the ID code as the discrimination code. 10. The smart entry system according to claim 5, wherein: each of the plurality of portable devices has a key number code indicating a key number of each of the plurality of portable devices; andthe discrimination code storing portion stores the key number code as the discrimination code. 11. The smart entry system according to claim 5, wherein the discrimination code storing portion is configured to try the communication for receiving the discrimination code with all of the plurality of portable devices.
Nagai,Nobuyoshi; Okumura,Ryozo, Remote control system for controlling a vehicle with priority of control access being assigned to the most recent user of the vehicle.
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