Vehicular electronic key system
First Claim
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1. An electronic key system for a vehicle comprising:
- a portable apparatus comprising a first wireless communication device and a first memory storing a key ID (Identification Data); and
an on-vehicle apparatus installed in the vehicle, said on-vehicle apparatus comprising, a second wireless communication device communicable with the first wireless communication device when the first wireless communication device is in a predetermined area outside of the vehicle, a second memory storing an apparatus ID, a door condition detector detecting that a locking operation of the vehicle door is executed from the outside of the vehicle, a control unit permitting locking the vehicle door when the key ID corresponds with the apparatus ID, the control unit outputting alarm when the locking operation of the vehicle door is executed from the outside of the vehicle and when the second wireless communication device is not capable of communicating with the first wireless communicating device.
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Abstract
A vehicular electronic key system includes an on-vehicle apparatus which is communicable with an electronic key when the electronic key is in a predetermined area outside of a vehicle. The on-vehicle apparatus generates alarm when a door lock operation is executed from the outside of the vehicle and when the on-vehicle apparatus is not capable of communicating with the electronic key. Further, on-vehicle apparatus generates alarm when a key ID does not corresponds with an apparatus ID. Therefore, the electronic key system can firmly prevent the electronic key from being mislaid in the vehicle.
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Citations
11 Claims
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1. An electronic key system for a vehicle comprising:
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a portable apparatus comprising a first wireless communication device and a first memory storing a key ID (Identification Data); and
an on-vehicle apparatus installed in the vehicle, said on-vehicle apparatus comprising, a second wireless communication device communicable with the first wireless communication device when the first wireless communication device is in a predetermined area outside of the vehicle, a second memory storing an apparatus ID, a door condition detector detecting that a locking operation of the vehicle door is executed from the outside of the vehicle, a control unit permitting locking the vehicle door when the key ID corresponds with the apparatus ID, the control unit outputting alarm when the locking operation of the vehicle door is executed from the outside of the vehicle and when the second wireless communication device is not capable of communicating with the first wireless communicating device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic key system for a vehicle comprising:
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an electronic key; and
an on-vehicle apparatus installed in the vehicle, said on-vehicle apparatus being communicable with said electronic key when an electronic key is in a predetermined area outside of the vehicle, said on-vehicle apparatus detecting whether a locking operation of the vehicle door is executed from the outside of the vehicle, said on-vehicle apparatus outputting alarm when the vehicle door is locked from the outside of the vehicle and when said on-vehicle apparatus is not capable of communicating with said electronic key.
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11. A method for warning mislaying an electronic key in a passenger compartment in a vehicle, the method comprising:
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communicating an on-vehicle apparatus with an electronic key when the electronic key is in a predetermined area outside of the vehicle;
detecting whether a locking operation of a vehicle door is executed from the outside of the vehicle; and
outputting alarm when the vehicle door is locked from the outside of the vehicle and when said on-vehicle apparatus does not communicates with said electronic key.
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Specification