JPS61179978A - Door lock apparatus of car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to an automobile door locking device that can lock or unlock an automobile door using a remote control device.

(Summary of the Invention) The present invention, when locking or unlocking a door using a remote control device, alerts the user that the vehicle door has been opened by an unlocking operation other than a specific remote control device, thereby preventing theft. This is what we are trying to prevent.

(Prior art and its problems) In conventional cars, even if the doors are locked, it is difficult to unlock the door by breaking the window glass or using a wire or imitation key to unlock the door while the car is parked. There has been a problem in which items left inside the car by unlocking the car and opening the door, as well as accessories such as car stereos, cassettes, and car air conditioners, are stolen, and in extreme cases, the car itself is stolen.

(Object of the Invention) The present invention has been made in view of the above circumstances, and an object of the present invention is to make it possible to prevent theft by using a configuration in which the door is unlocked by a remote control device. .

(Structure and Effects of the Invention) In order to achieve such an object, the present invention provides locking or unlocking information transmitted from a remote control device that is operated to lock or unlock an automobile door from a remote location. a receiving means for receiving the optical signal and outputting it as a received signal; and a door opening/closing detecting means for outputting a door opening signal when the automobile door is opened.
outputting a lock control signal and an unlock control signal in response to a received signal from the receiving means, and controlling an alarm in response to a door opening signal from the door opening/closing detection means other than the received signal from the receiving means; a control circuit that outputs a signal; a drive means that drives a door lock mechanism to a door lock position and a door unlock position in response to a lock control signal or an unlock control signal stage from the control circuit; and the control circuit. and an alarm means for generating an alarm in response to an alarm control signal from the alarm control signal.

With this configuration, when the door lock is released and the car door is opened using a device other than a specific remote control device, an alarm means such as a horn or headlight is activated.

Therefore, an alarm is generated when the door is illegally unlocked and opened by a person other than the driver, so the driver will know from the alarm that the door has been opened unexpectedly and will immediately drive the vehicle. It is now possible to prevent theft.

In addition, even if the driver is not nearby, the alarm will attract the attention of people around the vehicle, which can help prevent theft.

(Description of Examples) Hereinafter, the present invention will be described in detail based on examples shown in the drawings. FIG. 1 is a block diagram showing a control circuit according to an embodiment of the present invention, and FIG. 2 is a mechanism diagram showing a mechanism of a door lock device. 1 is a remote control device that is operated to lock or unlock the automobile door 2 from a remote location; 3 is a remote control device that receives a locking or unlocking optical signal transmitted from the remote control device 1; The receiving means 4 outputs as a received signal,
This is a door switch as a door opening/closing detection means that outputs a door opening signal when the automobile door 2 is opened.
When the door 2 is opened, the door switch 4 is closed, and when the door 2 is closed, the door switch 4 is opened. Although not shown, the door switch 4 is also used as a starting switch for a lamp that illuminates the footwell when the door 2 is opened. 5 outputs a lock control signal and an unlock control signal in response to the received signal from the receiving means 3, and also responds to a door opening signal from the door switch 4 due to a signal other than the received signal from the receiving means 3. A control circuit 6 that outputs an alarm control signal drives the door lock mechanism 7 to a door lock position and a door unlock position in response to a lock control signal or an unlock control signal stage from the control circuit 5, respectively. A door lock motor 8 serving as a drive means for generating an alarm is an alarm means for generating an alarm in response to an alarm control signal from the control circuit 5, and is composed of a horn 8a and a headlight 8b.

Reference numeral 9 denotes a key switch for an ignition coil that is opened and closed by a car key (not shown), and is closed by a starting operation and opened by a stopping operation. In addition, in the case of a diesel engine,
You can use the engine switch.

IO is a changeover switch that switches between an automatic state in which the vehicle door 2 is automatically locked and an automatic release state in which it is manually locked.

The door lock mechanism 7 is provided within the structure of the door 2, and a lock knob Ila is attached to the upper end of the door lock rod 11, and the lock knob Ila projects upward from near the lower end of the window portion.

A lower end portion of the door lock rod 11 is connected to a lock fitting I2. This lock fitting 12 is interlocked and connected to the door lock motor 6 within the door lock unit 13. Further, the lock pawl (not shown) in the door lock unit 13 and the door opening/closing knobs 14a and 14b inside and outside the vehicle and the key cylinder 15 are connected to link mechanisms 16 and 17, respectively.
．． They are interlocked and connected via 18.

R is a relay switch for closing a relay contact R1 for the alarm means 8 by energizing it.

Reference numeral 21 denotes an output unit for causing the door lock motor 6 attached to all the doors 2 to perform drive outputs for locking and unlocking operations.

Next, the operation of this embodiment will be explained using the flowcharts shown in FIGS. 3 and 4.

(i) Operation when locking or unlocking with remote control device I First, when remote control device I is operated, it is determined whether the received signal (light reception signal) matches a specific signal for that car. Do (Fl). If it is determined that the light reception signals match, then it is determined whether the signal is a lock signal for locking the door 2 or an unlock signal for unlocking the door 2 (F2).

In step F2, if it is determined to be a lock signal, a lock control signal is output, and a drive output for lock operation is provided to the door lock motor 6 (F3), and the theft flag is set to 1 (F4).

On the other hand, if it is determined to be an unlock signal, an unlock control signal is output, and a drive output for an unlock operation is provided to the door lock motor 6 (F5), and the theft flag is set to O (F6).

Next, check whether the set time has elapsed (time up)
After the set time has elapsed, the drive output for locking or unlocking is turned off (F8). This set time is to ensure enough time for the locking or unlocking operation by the door locking motor 6 to be completed, and is a short time such as 0.5 seconds, for example.

(ii) Operation during unlock operation First, it is determined whether the changeover switch IO is in the automatic state or the automatic release state (Fil).

If it is determined that the automatic state is established, then it is determined whether the door 2 is open based on whether the door switch 4 is closed (F1'2). Here, if door 2 is open, it is determined whether or not the number of lugs is 1 (F'13).

In step F13, if it is determined that the theft flag is 1, an alarm control signal is output, the relay switch R is energized, the relay contact R1 is closed, and the alarm means 8 is activated.
4) Sound the horn 8a and turn on the headlights 8b. In addition, the remote control device
When the door 2 is opened by the unlocking operation, the theft flag is 0, so the determination in step F13 is No, and the alarm means 8 is not activated.

Next, the key switch 9 for the ignition coil
It is determined whether or not the alarm means 8 is operated to close (F15), and if it is determined that the alarm means 8 is operated to close, the relay contact R8 is opened to stop the operation of the alarm means 8 (FIB).

Therefore, when the door 2 is opened by an unlock operation other than the specific remote control device 1, the alarm means 8 is activated, and theft can be effectively prevented.

According to this embodiment, even if the driver unlocks the door 2 using the door key and opens the door 2, and accordingly the alarm means 8 is activated, the key switch 9 for the ignition coil cannot be closed by operating the car key. The operation of the alarm means 8 can be stopped by this. As a result, even if the lock operation is performed using the remote control device 1, and the unlock operation is performed by mistake using the car key, the operation of the alarm means 8 can be quickly stopped, and the alarm means 8 will not stop and the operation caused by this can be stopped. The structure is designed to avoid unexpected suspicions.

Further, in the above embodiment, in step F11 of FIG. 4, it is determined whether the changeover switch 10 is in the automatic state or the automatic release state, and when the door 2 is unlocked with the car key, the switch 10 is set in the automatic release state. Although the door 2 is configured to be able to be opened without activating the alarm means 8, this step Fil may be omitted in the present invention.

The driving means is not limited to the motor 6, and various means such as a solenoid can be used.

The alarm means 8 is not limited to being composed of both a horn 8a and a headlight 8b, but may be modified in various ways, such as being composed of either one of them, or adding a dedicated device such as a siren. .

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a control circuit according to an embodiment of the present invention, Fig. 2 is a mechanism diagram showing the mechanism of the door lock device, and Fig. 3 is a block diagram showing the mechanism of the door lock device. A flowchart showing the operation,
FIG. 4 is a flowchart showing the operation at the time of unlocking operation. ■...Remote control device, 2...Automobile door, 3...Receiving means, 4...Door opening/closing detection means, 5
. . . Control circuit, 6. Drive means, 7. Door lock mechanism, 8. Alarm means.

Claims (3)

[Claims] (1) Receiving means for receiving a locking or unlocking optical signal transmitted from a remote control device operated to lock or unlock an automobile door from a remote location, and outputting this as a received signal; door opening/closing detection means for outputting a door open signal when an automobile door is opened; and outputting a lock control signal and an unlock control signal in response to a received signal from the receiving means; a control circuit that outputs an alarm control signal in response to a door opening signal from the door opening/closing detection means other than the received signal; and a control circuit that outputs an alarm control signal in response to a lock control signal or an unlock control signal stage from the control circuit. 1. A door locking device for a motor vehicle, comprising: drive means for driving each door to a door lock position and a door unlock position; and an alarm means for generating an alarm in response to an alarm control signal from the control circuit. (2) The automobile door lock device according to claim 1, wherein the alarm means generates a horn. (3) The automobile door lock device according to claim 1 or 2, wherein the warning means turns on a headlight.