JPH0415873B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automobile door lock control device that controls the locked and unlocked states of an automobile door in response to a control signal sent from an external transmitter.

[Conventional technology]

This type of conventional car door lock control device receives a control signal sent by radio, ultrasonic, light, etc. from an external transmitter, and when it determines that it is a lock request, it changes the open/closed state of the car door, that is, the closed state. The locking mechanism of the automobile door is controlled to the locking side regardless of whether the door is closed, open, or the door is left ajar.

[Problem that the invention seeks to solve]

However, when the car door is open or ajar (these are collectively referred to as the door open state), the door will not be locked at all or will not be locked completely even if the locking mechanism is activated. On the other hand, since locking by remote control is usually performed at a location away from the vehicle, it is difficult for the operator to know that the door is not fully locked. Therefore, with conventional systems that simply drive the locking mechanism to the locking side when a locking request is made regardless of whether the automobile door is opened or closed, there is a high risk that incomplete locking will be overlooked, and an outsider may not be able to do so. There was a problem that the door could be easily opened and there was a high risk of theft.

The present invention solves these conventional problems, and its purpose is to not control the lock mechanism to the lock side even if a lock request is made when the car door is open, but instead to issue an alarm. An object of the present invention is to provide an automobile door lock control device which is designed to alert an operator to a door lock.

[Means for solving problems]

In order to achieve the above object, the present invention provides an automobile door lock control device that receives and identifies a control signal 1 from a transmitter to control a lock mechanism 2 of an automobile door, as shown in FIG. 1, for example. A receiver 3 that receives the control signal 1, a lock request determining means 4 that determines a lock request based on the control signal 1 received by the receiver 3, a door courtesy switch 5 for an automobile door, and a door courtesy switch 5.
When the lock request is divided into two parts by the door open/close state discriminating means 6 and the lock request discriminating means 4, the door open/close state discriminating means 6 determines whether the automobile door is closed. When it is determined, the locking mechanism 2 is driven to lock the vehicle door, and when the door open/close state determining means 6 determines that the vehicle door is not closed, the alarm means 7 issues an alarm to the outside. A processing section 8 is provided.

[Effect]

Even if the receiver 3 determines a lock request, if the door courtesy switch is on and the car door is open, the lock mechanism 2 will not be controlled to the lock side and the alarm means 7 will issue an alarm, prompting the operator to close the car door. Notifies you that the lock cannot be locked because it is open.

〔Example〕

FIG. 2 is a block diagram of an embodiment of the present invention,
10 is a transmitter, 11 is its antenna, 12 is an operation switch, 13 is a receiver, 14 is its antenna,
15 is a door courtesy switch, 16 is a door lock/unlock detection switch, 17 is an arithmetic circuit, 18 is an alarm buzzer, 19 is a relay circuit, 2
0 and 21 are its contacts, 22 is a solenoid, and 23 is a lock mechanism coupled to the solenoid 22.
The door courtesy switch 15 is a switch that is turned on when the automobile door to which the locking mechanism 23 is attached is in the open state and turned off when it is in the closed state. This is a switch that turns off when 22 is driven to the lock side and turns on when it is driven to the unlock side.

FIG. 3 is a flowchart showing an example of the door lock control process performed by the arithmetic circuit 17, and S1 to S11 indicate each step. The operation of this embodiment will be explained below with reference to each figure.

When the operation switch 12 is pressed, the transmitter 10 transmits a control signal containing a predetermined code from the antenna 11. This transmitted control signal is transmitted to antenna 1.
4 and the code at receiver 13 is received by receiver 1.
It is determined whether the code matches the code set in advance to No. 3 or not. If the codes match, the receiver 13 inputs the received control signal to the arithmetic circuit 17.

The arithmetic circuit 17 executes the process shown in FIG. 3 at predetermined intervals, and when a control signal is input from the receiver 13 (S1), it first determines whether or not the door lock/unlock detection switch 16 is off. (S)
2) If it is off, the received control signal is processed as an unlock request (S6), and if it is on, it is treated as a lock request (S3 to S5).

Now, door lock/unlock detection switch 1
6 is on and the lock mechanism 23 is in the unlocked state, when the arithmetic circuit 17 receives the control signal, it outputs a lock signal to the relay circuit 19 if the door courtesy switch 15 is off, that is, if the door is closed. (S3, S4). This results in
The contact 21 of the relay circuit 19 switches to the power supply +B side, and a loop of power supply +B → contact 21 → solenoid 22 → contact 20 → ground is formed, and the solenoid 22
is driven to the side where the locking mechanism 23 is locked. Moreover, this turns off the door lock/unlock detection switch 16.

On the other hand, if the door courtesy switch 15 is on and the door is open, the alarm buzzer 18 is sounded (S3, S5). The sound of the alarm buzzer 18 allows the operator of the transmitter 10 to know that the door is open and the locking has been unsuccessful. In this case, in this embodiment, when the door is completely closed, it is detected that the door courtesy switch 15 is turned off (S7, S8), and a lock signal is output to the relay circuit 19, thereby locking the door (S9). Furthermore, the alarm buzzer 18 stops ringing (S10). If you want to stop only the sounding of the alarm buzzer 18 by remote control, press the operation switch 12 of the transmitter 10 again to send a control signal, and the alarm will be activated in a loop of step S7 → step S8 → step S11 → step S10. It is possible to stop the buzzer 18 from ringing.

Further, when the door lock/unlock detection switch 16 is off and the lock mechanism 23 is in the locked state, when the arithmetic circuit 17 receives a control signal (S
1, S2), and sends an unlock signal to the relay circuit 19 (S6). As a result, the relay circuit 19
The contact 20 switches to the power supply +B side, and the power supply +B→
A loop of contact 20 → solenoid 22 → contact 21 → ground is formed, and solenoid 22 connects to lock mechanism 2.
3 is driven to the unlock side.

In the above embodiment, locking and unlocking are controlled by one operation switch 12 by interpreting the control signal from the transmitter 10 as either a lock request or an unlock request depending on the current lock state. However, the transmitter 10 may be provided with two switches, a lock request switch and an unlock request switch, and each transmits a different control signal, which can be identified on the receiving side.

[Effects of the Invention] As explained above, according to the present invention, if a lock request is made while the automobile door is open, an alarm is issued to the outside. You can know that
This has the effect of eliminating the risk of theft due to an incomplete lock being overlooked.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the configuration of the present invention, FIG. 2 is a block diagram of an embodiment of the present invention, and FIG. 3 is a flowchart showing an example of processing of the arithmetic circuit 17. In the figure, 1 is a control signal, 2 and 23 are lock mechanisms, 3 and 13 are receivers, 4 is a lock request determining means, 5 and 15 are door courtesy switches, 7 is an alarm means, 8 is a processing unit, and 10 is a transmitter. , 11 and 14 are antennas, 12 is an operation switch, 16 is a door lock/unlock detection switch, 17 is an arithmetic circuit, 18 is a warning buzzer, 19 is a relay circuit, 2
0 and 21 are contacts, and 22 is a solenoid.

Claims (1)

[Scope of Claims] 1. An automobile door lock control device that receives and identifies control signals from a transmitter to control a lock mechanism of an automobile door, comprising: a receiver that receives control signals from the transmitter; and a receiver that receives control signals from the transmitter; a door courtesy switch for an automobile door; a door opening/closing state determining means for determining an open/closed state of the automobile door from the state of the door courtesy switch; When the lock request is determined by the means, and the door open/close state determining means determines that the vehicle door is closed, the lock mechanism is driven to lock the vehicle door, and the door open/close state is determined. 1. An automobile door lock control device comprising: a processing section which issues an alarm to the outside by an alarm means when it is determined by the means that the automatic door is not closed.