JP4563826B2 - Vehicle door lock control device - Google Patents

Description

  The present invention relates to a vehicle door lock control device that disables forced locking when a keyless code for unlocking a door is not registered.

  In general, in a vehicle such as an automobile, even when the front door on the driver's seat side is locked, the lock is automatically unlocked when the front door is closed to prevent so-called key confinement. However, even in such a case, if the front door is closed while the door outer handle is pulled in the unlocking direction, the unlocking function is released and the door is forcibly locked, and key confinement occurs.

  Therefore, for example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 9-78919), even if the user gets off the key after forgetting to remove it from the key cylinder and tries to close the front door with the door outer handle pulled in the unlocking direction. A technique is disclosed in which when a key inserted in a key cylinder is detected, a door lock is forcibly released to prevent key confinement.

In addition, the publication discloses that when the key is removed from the key cylinder, the door can be locked without pulling the door outer handle in the unlocking direction. A technique for solving the problem is disclosed.
JP-A-9-78919

  However, in the technique disclosed in the above-described document, for example, in a heating operation in cold weather or a cooling operation in midsummer, when leaving the vehicle with the heating or cooling working without stopping the engine, the door It is not easy to use because it cannot be locked.

  In addition, for example, when the door is closed in a state where the key removed from the key cylinder is left in the passenger compartment such as the driver's seat or the instrument panel, there is a problem that the key is confined because the door is locked. .

  In view of the above circumstances, the present invention makes it possible to lock the door without causing key confinement even when the key is inserted into the key cylinder, and to lock the door even when the key is placed indoors. An object of the present invention is to provide a vehicle door lock control device that can prevent key confinement while being possible.

In order to achieve the above object, a vehicle door lock control device according to the present invention comprises door open / close detection means for detecting an open / closed state of at least one door of a vehicle, and manual lock operation means for operating lock / unlock of each door An identification information registration means for registering identification information for identifying a user who can unlock the door by an external input, and the door opening / closing detection means detects the opening of the door, and the manual lock operation And a forced lock setting means for setting a forced lock that locks each door when the door is closed by operating the lock of the door, and the forced lock setting means is the identification information registering means. When the identification information is not registered, the forced lock setting is invalidated.

  According to the present invention, even when the key is inserted into the key cylinder, the door can be locked without causing key confinement, and even when the key is placed indoors, the door can be locked. Excellent effects such as prevention of key confinement can be obtained.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a circuit configuration diagram of a vehicle door lock control device.

  Reference numeral 1 in FIG. 1 denotes a door lock control circuit, which is mainly composed of a microcomputer having a CPU, ROM, RAM, input / output interface, etc. (not shown). Connected to the input side of the input / output interface of the door lock control circuit 1 are an outer handle switch 2, a manual lock switch 3 as manual lock operation means, a door switch 4 as door opening / closing detection means, and a key detection switch 5. .

  The outer handle switch 2 detects the rotation of a door outer handle (not shown) provided in the front door on the driver's seat side, and an ON signal is output while the door outer handle is pulled in the unlocking direction. The The manual lock switch 3 is provided inside the front door on the driver's seat side, and manually operates the door lock / unlock operation. When the manual lock switch 3 is tilted to the door lock side, a lock signal is output and the lock is released. When tilted, an unlock signal is output. When the manual lock switch 3 is tilted to the lock side with the front door opened, if the forcible lock permission condition described later is not established, the manual lock switch 3 is forced to the unlock side by operating an actuator such as a solenoid (not shown). Returned.

  The door switch 4 detects opening / closing of the front door on the driver's seat side, and an ON signal is output while the front door is open, and an OFF signal is output when the front door is closed. . The key detection switch 5 detects whether or not the key plate is inserted into the key cylinder, and an ON signal is output while the key plate is inserted into the key cylinder.

  Further, electric actuators 6 as door lock driving means provided on each door of the vehicle (left and right front doors, left and right rear doors, trunk lid, etc.) are connected to the output side of the input / output interface of the door lock control circuit 1. ing.

  Each electric actuator 6 is used to lock / unlock the lock mechanism of each door of the vehicle. In addition, since locking / unlocking of each door is operated in a synchronized state, only one electric actuator 6 is shown as a representative in the figure.

  The door lock control circuit 1 outputs a lock signal or an unlock signal to the electric actuator 6 of each door according to the operation state of each of the switches 2 to 5 described above. The lock mechanism of each door locks each door when a lock signal is output from the door lock control circuit 1, and releases the lock when an unlock signal is output.

  In the initial state, the door lock control circuit 1 performs unlock control for automatically releasing the locked state when the front door is closed even if the front door on the driver's seat is opened and locked. . However, when the user of the vehicle, represented by the driver, performs a certain operation, the unlock control is released, and when the front door is closed with the door locked, a forced lock is applied to lock all the doors as they are. You can choose.

  The forced lock setting performed by the user of the vehicle and the release operation after the forced lock is set are performed according to the flowcharts shown in FIGS. In the identification information registration determination routine shown in FIG. 2, first, in step S1, it is checked whether or not the identification information of the keyless door entry has been registered. And when not registered, it waits until it registers.

  As a means for registering identification information of a keyless entry, it is common to register a personal identification number. However, the present invention is not limited to this, and it is also possible to register personal identification information such as fingerprints, voiceprints, veins, and irises. good. Furthermore, the number of people that can be registered may be two or more, limited to one person.

  As an example of means for registering identification information, for example, Japanese Patent Application Laid-Open No. 11-280318 discloses a technique using a password as identification information. That is, with the front door on the driver's seat opened, the lock mechanism is unlocked, the door outer handle of the front door is pulled, and the outer handle switch 2 is turned ON / OFF several times within a predetermined time, At this time, the number of pulses output from the outer handle switch 2 is counted, a one-digit number is set, and this is repeated four times to register a multi-digit password. Also, identification information represented by such a personal identification number may be transmitted and registered from a portable wireless device such as a mobile phone to a receiver mounted on the vehicle.

  If the identification information for identifying the individual is correct, the process proceeds to step S2. In step S2, the identification information registered determination flag F is set (F ← 1), and the routine is terminated. Note that the initial value of the identification information registered determination flag F is 0, and once set, the state of F = 1 is maintained until initialization processing is performed.

  In the forced lock setting routine shown in FIG. 3, first, the forced lock setting conditions are determined in steps S11 to S14. That is, step S11 checks whether the front door on the driver's seat side is open based on the output signal of the door switch 4. When the front door with the door switch 4 turned off is closed, the process branches to step S13, where the count value T of the push time timer is cleared (T ← 0), and the routine is exited. On the other hand, when the front door whose door switch 4 is ON is open, the process proceeds to step S12.

  In step S12, it is checked whether or not a lock signal, which is a lock setting signal, is output from the manual lock switch 3 functioning as a lock transmission means. As described above, when the forced lock is not set, the manual lock switch 3 is forcibly returned to the unlock side by the operation of the actuator even if it is tilted to the lock side while the front door is open.

  If the output of the lock signal is not detected, the process branches to step S13, the count value T of the push time timer is cleared (T ← 0), and the routine is exited.

  When the output of the lock signal is detected, that is, when the manual lock switch 3 is tilted to the lock side with the front door opened, the process proceeds to step S14. In step S14, the value of the identification information registered determination flag F is checked.

  When the identification information of F = 1 is already registered, the process proceeds to step S15, and the elapsed time measurement by the push time timer is started. If the identification information of F = 0 is not registered, the process branches to step S16 to display the setting invalidity, and then exits the routine.

  Various means can be considered as means for displaying the forced lock setting invalidity. For example, you may make it display by visual means, such as lighting a hazard lamp, a room lamp, etc., or lighting the warning lamp provided in the combination meter. Or you may make it display by auditory means, such as a buzzer and a horn. Alternatively, when a system having a monitor such as a navigation system is installed, it may be visually displayed on the monitor that the forced lock operation is invalid using a picture or a character. In this case, the procedure for setting the forced lock may be further guided by voice.

  In step S15, the count value T of the push time timer is incremented (T ← T + 1), and the process proceeds to step S17. In step S17, the count value T of the push time timer is compared with a set time To (for example, 4 seconds), and if T <To, the routine is directly exited.

  When the count value T of the push time timer reaches the set time To (T ≧ To), the process proceeds to step S118, a process for setting the forced lock is executed, and the routine is exited. When the forced lock is set, even if the manual lock switch 3 is tilted to the lock side with the front door on the driver's seat opened, the lock is not returned to the unlock side. Therefore, even if the driver gets off in this state and closes the front door, the locking mechanism does not unlock and the locked state is maintained.

  As a result, for example, when leaving the vehicle in a state where the heating operation or the cooling operation is continued in cold weather or midsummer, the door can be easily locked, which is convenient. In addition, even when the engine is stopped, the door can be locked while leaving the key in the passenger compartment, so if you park the vehicle and go to a leisure facility, you can drop the key in the middle, You will never forget. Furthermore, when using a facility where luggage cannot be brought in, a wider use is born, for example, the key can be left in the passenger compartment together with the luggage.

  On the other hand, if identification information registered in advance is input to the vehicle body side, the door is unlocked, so that key confinement can be prevented.

  The present invention is not limited to the above-described embodiment. For example, when the ON signal is output from the key detection switch 5, that is, when the key plate is inserted into the key cylinder, You may make it cancel a forced lock. In addition, this cancel mechanism does not cancel, for example, by forcibly locking the key plate by repeatedly inserting and removing the key plate into and from the key cylinder and repeatedly outputting the ON signal and OFF signal from the key detection switch within a predetermined time. You may make it maintain.

  Even if the identification information is not registered, the forced lock can be made effective by performing a preset lock setting operation. This lock setting operation is performed by the user of the vehicle repeatedly tilting the manual lock switch 3 to the lock side and the unlock side, for example, a plurality of times. However, such a lock setting operation is preferably performed once without registering since there is a possibility of key confinement if it is registered with one setting.

  In this case, if key confinement occurs by mistake, for example, the dealer is contacted, and the dealer sends a cancel signal to the receiver of the vehicle from a remote location, thereby unlocking the door. Correspondence is also possible.

Circuit diagram of door lock control device for vehicle Flowchart showing identification information registration determination routine Flow chart showing forced lock setting routine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Door lock control circuit 2 Outer handle switch 3 Manual lock switch 4 Door switch 5 Key detection switch 6 Electric actuator F Identification information registered determination flag T Count value To Set time

Agent Patent Attorney Susumu Ito

Claims (5)

Door opening / closing detection means for detecting an opening / closing state of at least one door of the vehicle;
Manual lock operation means for operating lock / unlock of each door;
Identification information registration means for registering identification information for identifying a user who can unlock the door by an external input ;
Forced lock setting for setting a forced lock that locks each door when the door open / close detection means detects the opening of the door and the manual lock operation means operates the door lock to close the door. Means and
The vehicle door lock control device, wherein the forced lock setting means invalidates the setting of the forced lock when the identification information is not registered by the identification information registration means. The forced lock setting means detects the opening of the door by the door opening / closing detection means and operates the lock of the door by the manual lock operation means, and then detects the closing of the door by the door opening / closing detection means. 2. The vehicle door lock control device according to claim 1, further comprising a function of setting a forced lock that holds the locked state of each door. 3. The vehicle door lock control device according to claim 1, wherein the forced lock setting means displays a setting invalidity when the forced locking setting is invalid. In the state where the identification information is registered, the forced lock setting means detects the opening of the door by the door opening / closing detection means, and performs the lock operation continuously by the manual lock operation means for a set time. 4. The vehicle door lock control device according to claim 1, wherein the forced lock is set on the condition. 5. The forced lock setting means enables a forced lock to be set by performing a preset lock setting operation even when the identification information is not registered. The vehicle door lock control device according to any one of the above.

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