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US 7,403,099 B2Granted
Smart key system
AssigneesDenso Corporation, Toyota Jidosha Kabushiki Kaisha
InventorsHodaka Kamiya, Masachika Kamiya, Tomoo Kakegawa, Akihiro Muramatsu
Life of this patent
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Abstract
A smart key system for a vehicle determines that a mobile communicator is not in the passenger compartment and that an in-trunk communicator communicates with the mobile communicator when the trunk gets locked. Then the smart key system executes a recovery process for the mobile communicator locked in the trunk.
Claims12
A smart key system for a vehicle comprising:
- an in-trunk communicator provided within a trunk of a vehicle and configured for wirelessly communicating with a mobile communicator in the trunk of the vehicle;
- a trunk lock status detector for detecting a lock/unlock status of the trunk;
- a controller for executing:
- an ex-room process for determining that the mobile communicator is not in a passenger compartment of the vehicle;
- an in-trunk process for determining that the in-trunk communicator communicates with the mobile communicator when the trunk lock status detector detects that the trunk gets locked;
- and
- a predetermined process for the mobile communicator locked in the trunk, based on the determinations of the ex-room process and the in-trunk process,
- wherein the in-trunk communicator is located at a corner of the trunk,
- wherein the in-trunk communicator includes a transmitter and a receiver located at different corners of the trunk.
6 more elements
A smart key system for a vehicle comprising:
- an in-trunk communicator for wirelessly communicating with a mobile communicator in a trunk of the vehicle;
- a trunk lock status detector for detecting a lock/unlock status of the trunk;
- a controller for executing:
- an ex-room process for determining that the mobile communicator is not in a passenger compartment of the vehicle;
- an in-trunk process for determining that the in-trunk communicator communicates with the mobile communicator when the trunk lock status detector detects that the trunk gets locked;
- and
- a predetermined process for the mobile communicator locked in the trunk, based on the determinations of the ex-room process and the in-trunk process,
- wherein the controller executes the ex-room process when the trunk lock stabs detector detects that the trunk gets unlocked.
5 more elements
A smart key system for a vehicle comprising:
- an in-trunk communicator for wirelessly communicating with a mobile communicator in a trunk of the vehicle;
- a trunk lock status detector for detecting a lock/unlock status of the trunk;
- a door lock status detector for detecting the lock/unlock status of doors of the vehicle;
- a speed sensor and a brake sensor;
- and
- a controller for executing:
- a locked-out process for determining that a user of the vehicle is locked out of the passenger compartment;
- an in-trunk process for determining that the in-trunk communicator communicates with the mobile communicator when the trunk lock status detector detects that the trunk gets locked;
- and
- a predetermined process for the mobile communicator locked in the trunk, based on the determinations of the lock-out process and the in-trunk process,
- wherein the controller executes the locked-out process based on that the door lock status detector detects that all the doors are locked,
- wherein the controller executes the locked-out process based further on that a vehicle speed which the speed sensor detects is zero and the brake pedal is not being operated.
9 more elements
A smart key system for a vehicle comprising:
- an in-trunk communicator for wirelessly communicating with a mobile communicator in a trunk of the vehicle;
- a lock status detector for detecting a lock/unlock status of the trunk;
- a door lock status detector for detecting the lock/unlock status of doors of the vehicle;
- a speed sensor and a brake sensor;
- and
- a controller for executing:
- a locked-out process for determining that a user of the vehicle is going to be locked out of the passenger compartment;
- an in-trunk process for determining that the in-trunk communicator communicates with the mobile communicator when the lock status detector detects that the trunk gets locked;
- and
- a predetermined process for the mobile communicator locked in the trunk, based on the determinations of the lock-out process and the in-trunk process,
- wherein the controller executes the locked-out process based on that the door lock status detector detects that all the doors are going to be locked,
- wherein the controller executes the locked-cut process based further on that a vehicle speed which the speed sensor detects is zero and the brake pedal is not being operated.
9 more elements
A smart key system for a vehicle comprising:
- an in-trunk communicator for wirelessly communicating with a mobile communicator in a trunk of the vehicle;
- a trunk lock status detector for detecting a lock/unlock status of the trunk;
- a boarder detector for detecting a boarder of the vehicle;
- and
- a controller for executing:
- a no-boarder process for determining that the boarder detector detects no one in the vehicle when the trunk lock status detector detects that the trunk gets locked;
- an in-trunk process for determining that the in-trunk communicator communicates with the mobile communicator when the trunk lock status detector detects that the trunk gets locked;
- and
- a predetermined process for the mobile communicator locked in the trunk, based on the determinations of the no-boarder process and the in-trunk process.
6 more elements
Dependencies are inferred from the claim text.