JPS61237778A - 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. The purpose of this invention is to prevent theft and also to avoid the practical inconveniences resulting from the anti-theft arrangement.

(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.

(Objective of the Invention) The present invention has been made in view of the above circumstances, and it is possible to prevent theft by using a configuration in which the door is unlocked by a remote control device, and also to make it possible to prevent theft depending on the usage situation. The purpose is to make it possible to use them appropriately.

(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 operated to lock or unlock an automobile door from a remote location. a receiving means for receiving an optical signal and outputting it as a received signal; a door opening/closing detection means for outputting a door opening signal when the automobile door is opened; and lock control in response to the received signal from the receiving means. a control circuit that outputs a signal and an unlock control signal, and outputs an alarm control signal in response to a door opening signal from the door opening/closing detection means other than the received signal from the receiving means; drive means for driving the door lock mechanism to a door lock position and a door unlock position, respectively, in response to a lock control signal or an unlock control signal stage, and generating an alarm in response to an alarm control signal from the control circuit. The alarm means is configured to include an alarm means and a switching means for selectively switching the alarm means between an activated state and a non-operated state.

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. When the alarm means is not activated, the switching means can be used to switch the alarm means to a non-operating state, so that unlocking the door with a key other than the specific remote control device or a spare key will not activate the alarm means. Can be done without activation.

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.

Additionally, even if the driver is not nearby, the alarm alert will attract the attention of people nearby, thereby preventing theft.

Furthermore, if we look at actual usage situations, for example, a driver drives a car using a specific remote control device, parks the car at a station, etc., and later uses the car with a family member who has a spare key. Or go and pick it up.
Alternatively, a car door may be legitimately unlocked using a device other than a specific remote control device, such as when a driver asks someone to open the car door using a key. In such a case, if the alarm means is activated all the time, it is practically inconvenient because the alarm means is unexpectedly suspected of theft even though it has nothing to do with theft. According to the present invention, by switching the alarm means to a non-operating state by the switching means, when an authorized user uses a spare key or the like to unlock the door, the door lock can be unlocked without activating the alarm means. The door can now be opened by pressing the button, making it possible to use the door properly depending on the usage situation, making it extremely convenient in practice.

(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. Reference numeral 1 denotes a remote control device operated to lock or unlock the automobile door 2 from a remote location; 3 receives a locking or unlocking optical signal transmitted from the remote control device 1; The receiving means 4 which outputs a reception signal is a door switch as a door opening/closing detection means which 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 the door is closed. When door switch 2 is closed, 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 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 from the control circuit 5, respectively. A door lock motor 8 as a driving means is an alarm means for generating an alarm in response to an alarm control signal from the control circuit 5, and 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 lla is attached to the upper end of the door lock rod 11, and the lock knob lla 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 12. This lock fitting 12 is interlocked and connected to the door lock motor 6 within the door lock unit 13. Also, the lock claw inside this door lock rod)-13 (
), the door opening/closing knobs 14a and 14b inside and outside the vehicle, and the key cylinder 15, respectively, link mechanisms 16 and 1.
7.18.

R is a relay coil for closing a relay contact R8 for the alarm means 8 when energized.

In the circuit consisting of the relay contact R1, the horn 8a, and the headlight 8b, the alarm means 8 is placed between the connection point A between the horn 8a and the headlight 8b, and the relay contact Rt, in an activated state and a non-activated state. A changeover switch 19 is provided as a changeover means, and by keeping this changeover switch 19 open, the alarm means 8 can be prevented from operating regardless of the alarm control signal output from the control circuit 5. There is. This changeover switch 19 may be interposed between the switching transistor T for the relay coil R and the control circuit 5.

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 is performed using the remote control device 1 First, when the remote control device 1 is operated, it is determined whether the received signal (light reception signal) matches a specific signal for the vehicle. 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 is to ensure sufficient time for the locking or unlocking operation to be completed. For example, 0.5
It is a small amount of time, such as seconds.

(ii) Operation during unlock operation First, the changeover switch 19 as the changeover means
It is determined whether the alarm means 8 is selected as an activated state or a non-activated state (Fil). If it is determined that the selector switch 10 is in the automatic state or in the automatic release state (PI
2).

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 or not (PI3). If it is determined that the door 2 is opened, it is further determined whether the theft flag is 1 (PI4).

In step F'14, if it is determined that the theft flag is 1, an alarm control signal is output, the relay coil R is energized, the relay contact R3 is closed, and the alarm means 8 is activated.
5) Sound the horn 8a and turn on the headlights 8b. In addition, remote control device 1
When the door 2 is opened by the unlocking operation, the theft flag is O, so it is determined NO in step F14, 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 (PI3), and if it is determined that the alarm means 8 is operated to close, the relay contact R3 is opened to stop the operation of the alarm means 8 (PI7).

If NO is determined in each of the steps Fil and F12, steps F13 to F17 are jumped, and the alarm means 8 is not activated.

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.

As described above, the switching means is not limited to one that disables the alarm means 5 regardless of the alarm control signal from the control circuit 5; Like the changeover switch 10, a circuit equipped with a changeover switch is connected to the control circuit 5, and the control circuit 5 is configured so that the alarm control signal is not output to the alarm means 8 by switching to a non-operating state. good.

Further, in the above embodiment, in step I''12 in FIG. 4, it is determined whether the changeover switch IO is in the automatic state or the automatic release state, and when the door 2 is unlocked with the car key, it is set in the automatic release state. Accordingly, the door 2 can be opened without activating the alarm means 8, but in the present invention, this step F12 may be omitted.

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 the drawing]

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. l...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, 19... Changeover switch as changeover 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 the 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 open signal from the door open/close detecting means other than the signal; and a control circuit that outputs an alarm control signal in response to a lock control signal or an unlock control signal from the control circuit; drive means for driving the device and the door unlock position, respectively; alarm means for generating an alarm in response to an alarm control signal from the control circuit; and selectively placing the alarm means into an activated state and a non-operated state. An automobile door lock device comprising a switching means for switching. (2) The automobile door lock device according to claim 1, wherein the switching means is a changeover switch interposed in the circuit of the alarm means. (3) In the automobile door lock device according to claim 1 or 2, the switching means does not cause the control circuit to output an alarm control signal to the alarm means. Automobile door lock device.