Smart entry system
First Claim
1. A smart entry system for a vehicle having a plurality of doors comprising:
- a transmitter that is provided in a vehicle in connection with a specified door of the vehicle and transmits a request signal within a predetermined range around the specified door;
a portable unit for receiving the request signal transmitted from the transmitter and transmitting a response signal in response to the request signal;
a receiver that is provided in the vehicle and receives the response signal from the portable unit, a touch detecting unit that is provided in the vehicle to detect a touch on the specified door;
a lock switch that is provided in the vehicle to lock the specified door by an external operation when the specified door is unlocked; and
a control unit that is provided in the vehicle and sets the specified door to an unlock standby state in response to the response signal, unlocks the specified door if the touch is detected by the touch detecting unit, and locks the specified door if the lock switch is operated under the state that the specified door is in an unlock state, the control unit unlocking only the specified door when the specified door is touched in the unlock standby state, and also unlocking at least one of other doors after a predetermined time elapses from the unlocking of the specified door.
1 Assignment
0 Petitions
Accused Products
Abstract
A smart entry system for a vehicle includes a transmitter on a vehicle and a portable unit carried by a user. The transmitter transmits a request signal which defines a user detection area to detect whether the portable unit transmits a response signal to indicate the user. When the user enters the detection area while all the doors are locked, an unlock standby state is set. When the user touches a touch sensor of a driver-seat side door under the unlock standby state, only the driver-seat side door is first unlocked. The other doors are kept locked if the user opens the D-door by the time when T2 seconds elapse. On the other hand, all the doors are unlocked when T2 elapses while the driver-seat side door is not opened.
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Citations
6 Claims
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1. A smart entry system for a vehicle having a plurality of doors comprising:
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a transmitter that is provided in a vehicle in connection with a specified door of the vehicle and transmits a request signal within a predetermined range around the specified door;
a portable unit for receiving the request signal transmitted from the transmitter and transmitting a response signal in response to the request signal;
a receiver that is provided in the vehicle and receives the response signal from the portable unit, a touch detecting unit that is provided in the vehicle to detect a touch on the specified door;
a lock switch that is provided in the vehicle to lock the specified door by an external operation when the specified door is unlocked; and
a control unit that is provided in the vehicle and sets the specified door to an unlock standby state in response to the response signal, unlocks the specified door if the touch is detected by the touch detecting unit, and locks the specified door if the lock switch is operated under the state that the specified door is in an unlock state, the control unit unlocking only the specified door when the specified door is touched in the unlock standby state, and also unlocking at least one of other doors after a predetermined time elapses from the unlocking of the specified door. - View Dependent Claims (2, 3)
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4. A smart entry system for a vehicle having a plurality of doors comprising:
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a transmitter that is provided in a vehicle in connection with a specified door of the vehicle and transmits a request signal within a predetermined range around the specified door;
a portable unit for receiving the request signal transmitted from the transmitter and transmitting a response signal in response to the request signal;
a receiver that is provided in the vehicle and receives the response signal from the portable unit;
a touch detecting unit that is provided in the vehicle to detect a touch on the specified door;
a lock switch that is provided in the vehicle to lock the specified door by an external operation when the specified door is unlocked; and
a control unit that is provided in the vehicle and sets the specified door to an unlock standby state in response to the response signal, unlocks the specified door if the touch is detected by the touch detecting unit, and locks the specified door if the lock switch is operated under the state that the specified door is in an unlock state, the control unit unlocking only the specified door when the specified door is touched in the unlock standby state, and also unlocking at least one of other doors when the specified door is opened after the specified door is unlocked. - View Dependent Claims (5)
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6. A smart entry system for a vehicle having a plurality of doors comprising:
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a transmitter that is provided in a vehicle in connection with a specified door of the vehicle and transmits a request signal within a predetermined range around the specified door;
a portable unit for receiving the request signal transmitted from the transmitter and transmitting a response signal in response to the request signal;
a receiver that is provided in the vehicle and receives the response signal from the portable unit;
a touch detecting unit that is provided in the vehicle to detect a touch on the specified door;
a lock switch that is provided in the vehicle to lock the specified door by an external operation when the specified door is unlocked; and
a control unit that is provided in the vehicle and sets the specified door to an unlock standby state in response to the response signal, unlocks the specified door if the touch is detected by the touch detecting unit, and locks the specified door if the lock switch is operated under the state that the specified door is in an unlock state, the control unit executing any one of unlocking only the specified door and unlocking of both of the specified door and at least one of other doors in accordance with whether the lock switch is operated, when the specified door is touched in the unlock standby state.
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Specification