JPH04371684A - Keyless entry device - Google Patents

Abstract

PURPOSE:To prevent occurrence of damage of robbery caused by the intrusion of another person from a door other than the door of a driver's seat after receiving unlock signals, with relatively simple constitution without separately providing an exclusive switch for the door of the driver's seat. CONSTITUTION:In a keyless entry device 1 locking and unlocking a door by receiving lock and unlock signals from a transmitter 2 with a receiver 3 on the vehicle body side, after receiving unlock signals, when doors except the door of a driver's seat are not opened withing specific time T0, all doors except the door of the driver's seat are so controlled that they are locked. After receiving the unlock signals, when doors except the door of the driver's seat are not opened within the first specific time T1, all doors except the door of the driver's seat are locked. When the door of the driver's seat is not opened within the second specific time T2, the door of the driver's seat is so controlled that it is locked.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] This invention enables doors to be locked and locked in vehicles such as automobiles by simply operating a switch on the transmitter side.
This invention relates to an improvement in a keyless entry device that can remotely control unlocking.

0002

2. Description of the Related Art Conventionally, in vehicles such as automobiles, lock/unlock signals from a portable transmitter are received by a receiver on the vehicle body to drive a door lock/unlock mechanism. A so-called keyless entry device that allows doors to be locked and unlocked even from a certain distance outside the vehicle is generally well known.

By being equipped with such a keyless entry device, it is possible to lock and unlock the door remotely with a single switch operation on the transmitter side, and locking and unlocking of the door can be performed remotely using a key operation. - Eliminates the hassle of unlocking.

However, when locking/unlocking a door using the above-mentioned keyless entry device, for example, if the transmitter switch is operated incorrectly or carelessly, or if the transmitter is unknowingly out of the transmitting/receiving range of the locking/unlocking signal. Even if the driver intends to lock the door, the door may not actually be locked. If the driver leaves the vehicle for a long time with the doors unlocked against the driver's will, there is a risk that the luggage inside the vehicle or the vehicle itself may be stolen. There is.

[0005] To solve this problem, all doors are automatically locked if any door is not opened within a predetermined time after the door unlock signal is sent from the transmitter. It is considered to do so (for example, see Japanese Patent Laid-Open No. 62-253884).

[0006]

[Problems to be Solved by the Invention] In recent years, when a driver gets into a vehicle alone, the driver unlocks the door using an unlock signal from a transmitter, opens the driver's door, and removes baggage. For example, when placed on the passenger side,
It is known that there have been cases of theft caused by so-called hidden robberies, in which a person hiding outside the vehicle opens the passenger door, steals the driver's luggage, and then drives off.

[0007] As a measure against such theft, the transmitter is provided with a dedicated switch for the driver's door, in addition to a switch for all doors that locks and unlocks all doors, so that only the driver's door can be independently locked and unlocked. It is also possible to make the door lockable, but in this case, two systems of door lock/unlock signals are required, and the receiver side reads these signals and outputs a control signal to the lock/unlock mechanism. There was a problem in that not only the transmitter but the entire system had to be complicated, and the cost was high.

The present invention has been made to solve the above-mentioned problems, and has a relatively simple structure without the need for a separate switch exclusively for the driver's door. An object of the present invention is to provide a keyless entry device capable of preventing damage caused by theft caused by intrusion by another person through a door.

[0009]

[Means for Solving the Problems] Therefore, the first invention of the present application locks and unlocks the doors by receiving lock/unlock signals from a transmitter with a receiver on the vehicle body side. The keyless entry device is characterized in that if the doors other than the driver's door are not opened within a predetermined time after receiving the unlock signal, the keyless entry device is controlled to lock all the doors other than the driver's door. This is what I did.

[0010] A second invention of the present application provides a keyless entry device in which a receiver on the vehicle body receives a lock/unlock signal from a transmitter to lock/unlock a door. After receiving the signal, if any door other than the driver's door is not opened within a first predetermined period of time, all doors other than the driver's door are locked;
If the driver's door is not opened within a second predetermined period of time, the driver's door is locked.

[0011]

Effects of the Invention According to the first invention of the present application, if any door other than the driver's door is not opened within a predetermined time after receiving an unlock signal, all doors other than the driver's door are opened. After the driver transmits an unlock signal using the transmitter, the driver opens the driver's door after the predetermined time has elapsed, and all other doors are locked. In this state, only the driver's door can be opened, and it is possible to effectively prevent theft caused by someone else's intrusion from a door other than the driver's door, that is, theft caused by a hidden burglar.

In this case, the transmitter operation switch and lock/unlock signal system are provided in two ways, one for all doors and one exclusively for the driver's door, so that only the driver's door can be locked and unlocked independently. As in the case of
Transmitter/receiver and overall system complexity is eliminated;
With a relatively simple configuration, the above-mentioned measures against hidden robbery can be taken.

Further, according to the second invention of the present application, if a door other than the driver's door is not opened within the first predetermined time after receiving the unlock signal, the door other than the driver's door is opened. Since all doors are locked, the driver can
After transmitting the unlock signal with the transmitter, the driver's door is opened after the first predetermined time has elapsed, thereby opening only the driver's door while all other doors are locked. This makes it possible to effectively prevent theft damage caused by hidden robbers with a relatively simple configuration without separately installing a dedicated switch for the driver's door.

Moreover, if the driver's door is not opened within a second predetermined time after receiving the unlock signal, the driver's door is locked, so there is no possibility of erroneous operation of the transmitter switch. Even if the driver intends to lock the door due to carelessness or the like, but the door is not actually locked, the driver's door itself will be automatically locked once the second predetermined time period has elapsed. That is, the door will not be kept unlocked against the passenger's will due to erroneous operation of a switch, etc., and theft of luggage inside the vehicle or the vehicle itself can be effectively prevented.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a block diagram schematically showing the overall configuration of a keyless entry device 1 according to this embodiment. a portable transmitter 2 that outputs lock/unlock signals from the transmitter 2; and a receiver attached to a predetermined location on the vehicle body that receives the lock/unlock signals from the transmitter 2 and sends the signals to the control unit 5. A receiving antenna 4 is attached to the receiver 3.

The control unit 5 includes a door lock motor M1 that drives the lock/unlock mechanism of the driver's door, passenger's door, rear left door, and rear right door, respectively.
, M2, M3 and M4 are connected, and door switches S1 and S detect the open/closed states of the respective doors.
2, S3 and S4 are connected, and a motor control signal is output according to the lock/unlock signal transmitted from the receiver 3, and each door lock motor M1, M2, M3,
It is designed to drive M4.

That is, when the switch of the transmitter 2 is operated to the lock side, for example when the driver gets out of the car and leaves the car, a door lock signal is output, and the lock signal is transmitted to the receiver 3. and then sent to the control unit 5. Then, the control unit 5 controls each door lock motor M1, M2, M3 and M4 in response to this lock signal.
A control signal is output to each door lock motor M1, M2,
Drive M3 and M4 in the locking direction to lock each door.
Activate the unlock mechanism to the lock side.

On the other hand, if the driver who was outside the vehicle operates the switch of the transmitter 2 to the unlock side while approaching the vehicle, for example to get into the vehicle, a door unlock signal is output and the lock operation is performed. The opposite operation is performed.

By the way, in this embodiment, when the driver gets into the vehicle alone, the driver unlocks the door using the unlock signal from the transmitter 2, opens the driver's door, and removes the baggage, etc. When placed inside the vehicle, such as on the passenger seat, the device is unlocked to prevent theft by a so-called hidden burglar, in which someone hiding outside the vehicle opens a door other than the driver's door, steals the baggage, and drives away. If a door other than the driver's door is not opened within a predetermined time after receiving the signal, all doors other than the driver's door are locked.

That is, as shown by the solid line in the graph of FIG. door lock motor M2
, M3, and M4 are all driven to the unlock side.

[0021] After receiving the unlock signal, if a door other than the driver's seat door is not opened even after a preset predetermined time T0 (for example, about 5 seconds) has elapsed, the driver's seat door is opened. Door lock motors M2, M3, and M4 for doors other than the door are all driven to the lock side, and all doors other than the driver's door are automatically locked.

Therefore, the driver transmits the unlock signal by operating the switch on the transmitter 2, and then opens the driver's door after the predetermined time T0 has elapsed.
Only the driver's door can be opened while all other doors are locked, and theft damage caused by hidden robbers can be effectively prevented.

Note that if at least one door other than the driver's door is opened within the predetermined time T0, as shown by the broken line in the graph of FIG. A door open signal is input from at least one of the door switches S2, S3, and S4 of the door, and the door lock motors M2, M3, and M4 for other doors are not automatically driven to the lock side. It has become.

As described above, according to this embodiment, the transmitter operation switch and the lock/unlock signal system are provided in two ways, one for other doors and one exclusively for the driver's door. The above-mentioned measures against hidden robbery can be achieved with a relatively simple configuration without complicating the transmitter/receiver and the entire system as in the case where the transmitter/receiver and the entire system can be locked and unlocked independently.

[0025] In the above embodiment, if the doors other than the driver's door are not opened even after a predetermined time T0 has elapsed after receiving the unlock signal, these other doors are automatically locked. However, in addition to this function, if the driver's door is not opened even after a further period of time has elapsed, the driver's door itself may be automatically locked.

Other embodiments of the present invention will be described below. That is, as shown by the solid line in the graph of FIG. If no other door (other than the driver's door) is opened, as in the above example,
All doors except the driver's door are automatically locked.
It is possible to prevent theft damage caused by hidden robbers.

[0027] Then, after further time has elapsed and the unlock signal is received, the second predetermined time T1 is longer than the first predetermined time T1.
If the driver's door is not opened even after a predetermined time T2 (for example, about 10 seconds) has elapsed, the driver's door itself is automatically locked.

As shown by the broken line in the graph of FIG. 3, if at least one door other than the driver's door is opened within the first predetermined time T1,
Door switches S2, S3, for doors other than the driver's door
A door open signal is input from at least one of the door lock motors M2, M3, and M4 for other doors, and the door lock motors M2, M3, and M4 for other doors are not automatically driven in the locking direction.
If the driver's door is opened within a predetermined time T2 and a door open signal is input from the door switch S1 of the driver's door, the door lock motor M1 for the driver's door is automatically driven in the locking direction. It is now no longer possible to do so.

After receiving the unlock signal, if the driver's door is not opened even after a second predetermined time T2 that is longer than the first predetermined time T1 has elapsed, the driver's door itself is automatically opened. By controlling the device so that it is locked, if the driver accidentally operates the switch, is careless, or operates the transmitter switch without knowing that the transmitter is outside the transmission/reception range of the lock/unlock signal, the driver cannot operate the lock. Even if you intend to do so, the doors are not actually locked, and the doors are not kept unlocked against the driver's will, making it impossible to effectively prevent theft of luggage inside the vehicle or the vehicle itself. It can be done.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram schematically showing the overall configuration of a keyless entry device according to an embodiment of the present invention.

FIG. 2 is a graph for explaining the operation of the keyless entry device.

FIG. 3 is a graph for explaining the operation of a keyless entry device according to another embodiment of the present invention.

[Explanation of symbols]

1...Keyless entry device 2...Transmitter 3...Receiver 5...Control unit T0...predetermined time T1...first predetermined time T2...Second predetermined time

Claims (2)

[Claims] Claim 1: In a keyless entry device that locks and unlocks a door by receiving a lock/unlock signal from a transmitter with a receiver on the vehicle body, after receiving the unlock signal, A keyless entry device characterized in that, if a door other than the driver's door is not opened within a period of time, all doors other than the driver's door are locked. [Claim 2] In a keyless entry device that locks and unlocks a door by receiving a lock/unlock signal from a transmitter with a receiver on the vehicle body, after receiving the unlock signal, a first If a door other than the driver's door is not opened within a second predetermined time, all doors other than the driver's door are locked, and if the driver's door is not opened within a second predetermined time, A keyless entry device characterized by controlling the driver's seat door to lock.