JPH0533539A - Vehicle door lock control device - Google Patents

Abstract

(57) [Abstract] [Purpose] A vehicle door lock control device that securely unlocks the door lock mechanism to prevent forgetting to remove the key when you try to lock the door by forgetting to remove the key from the ignition key cylinder. provide. [Structure] The key insertion state detection means 105 detects the key insertion state of the ignition key cylinder,
Further, when the door open / close detecting means 104 detects the open state of the door, when the lock / unlock detecting means 103 detects that the door lock operating member 102 is operated from the unlocked state to the locked state, the actuator 101 When the door open / close detection means 104 detects the door closed state, the drive control means 106 for driving and controlling the actuator 101 to the locking side and then again to the unlocking side. It is equipped with and to surely perform the operation to prevent forgetting to remove the key.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle door lock control device having a key removal prevention function.

[0002]

2. Description of the Related Art A so-called keyless lock function is provided to lock a door by pulling a door handle (hereinafter referred to as an outside handle) outside the vehicle while the door lock knob inside the vehicle is operated to the lock side. The vehicle door lock device has been put into practical use.

However, the keyless lock function is generally used as a simple method because the door can be locked without using the door key. You may get off the vehicle and lock the door, and in many cases you may not notice this key removal condition.

In order to solve such a problem, a vehicle door lock control device having a key removal forgetting prevention function has been devised and put into practical use. FIG. 7 is a time chart showing the operation of this type of vehicle door lock control device. The key insertion detection switch detects that a key is inserted in the ignition key cylinder,
When the door switch detects the open state of the door and attempts to lock the door by operating the door lock knob, an unlock signal is supplied to the door lock actuator that drives the door lock mechanism. The door lock mechanism is driven to the unlock side, and the door lock knob is driven to the unlock side again. In other words, the keyless lock cannot be performed, and as a result, the occupant forgets to remove the key from the key cylinder.

[0005]

The keyless lock operation has the following two operation procedures. That is, in both cases, with the door open, the door lock knob is pushed to the lock side to pull the outside handle to close the door, or the outside handle is pulled to push the door lock knob to the lock side to close the door.

However, when the keyless lock is performed by the latter operation procedure, the open lever and the sub-lever of the door lock mechanism section are pulled when an unlock signal is output to the door lock actuator when a state of forgetting to remove the key is detected. The door lock mechanism remains locked when it is in a locked state, and the key forgetting prevention function may not operate normally. This state will be described with reference to FIGS. 8 and 9 showing the outline of the door lock mechanism. First, in FIG.
When an occupant operates the outside handle 1 in the direction of the arrow when the vehicle door is opened, the outside lever 3 is rotated in the direction of the arrow via the rod 2, and the sub-lever 4 engaging with the outside lever 3 is pushed downward. .. Normal,
This causes the open lever 5 to rotate in the direction of the arrow,
A latch (not shown) of the door lock mechanism is released. Now, in this state, when the door lock knob 6 is pushed down to the lock side, the knob lever 8 is rotated to the arrow side via the rod 7. The knob lever 8 is engaged with the key lever 9, and the key lever 9 is rotated in the arrow direction with the rotation of the knob lever 8.

Next, in FIG. 9, when the door is opened with the key inserted into the key cylinder and the door lock knob 6 is operated to the lock side, as shown in FIG. 7, the door lock actuator (not shown) is unlocked. When a signal is supplied, the door lock actuator drives the rod 10 in the arrow direction to rotate the knob lever 8 in the arrow direction. As a result, the key lever 9 is rotated in the arrow direction, and the sub-lever 4 is pushed upward. At this time, the protrusion 4a of the sub-lever 4 interferes with the protrusion 5a of the open lever 5, and even if the outside handle 1 is returned, the sub-lever 4 cannot move further upward and the outside lever 3 engaging with the sub-lever 4 Also cannot return to the original position. That is,
The door lock mechanism will remain locked and you will not be able to unlock the door again to prevent forgetting to remove the key.

An object of the present invention is to provide a vehicle door lock control device for securely unlocking the door lock mechanism to prevent forgetting to remove the key when the user forgets to remove the key from the ignition key cylinder and tries to lock the door. To provide.

[0009]

The present invention will be described with reference to FIG. 1, which is a diagram for responding to claims, and the present invention relates to a door lock mechanism 100 provided on a door of a vehicle, and a lock mechanism for locking the door lock mechanism 100. Or actuator 1 to unlock
01, a door lock operating member 102 that locks or unlocks the door lock mechanism 100 from the vehicle interior, a locking / unlocking detection unit 103 that detects a locked state and an unlocked state of the door lock operating member 102, and a door Door opening / closing detection means 104 for detecting the open / closed state, key insertion state detection means 105 for detecting the key insertion state of the ignition key cylinder, and key insertion state detection means 105 for detecting the key insertion state of the ignition key cylinder, and When the door open / close detecting means 104 detects the open state of the door, when the lock / unlock detecting means 103 detects that the door lock operating member 102 is operated from the unlocked state to the locked state, the actuator 1
It is applied to a vehicle door lock control device provided with a drive control means 106 for controlling the drive of 01 to the unlocking side. And
The drive control means 106 temporarily controls the actuator 10 when the door open / close detection means 104 detects the door closed state after controlling the actuator 101 to be unlocked.
The above object is achieved by controlling the driving of 1 to the locking side and then controlling the driving to the unlocking side again.

[0010]

When the key insertion state detecting means 105 detects the key insertion state of the ignition key cylinder and the door opening / closing detection means 104 detects the door open state, the drive control means 106 detects locking / unlocking. When the door lock operating member 102 is detected to be operated from the unlocked state to the locked state by 103, the actuator 101 is drive-controlled to the unlocked side, and then the door open / close detection means 104 detects the closed state of the door. Then, once the actuator 101 is drive-controlled to the locking side, it is again drive-controlled to the unlocking side.

[0011]

FIG. 2 is a block diagram showing the configuration of the embodiment. In the figure, reference numeral 21 denotes a key insertion detection switch (hereinafter, referred to as a key switch), which is turned on when a key is inserted in the ignition key cylinder. Two
Reference numerals 2 and 23 denote state detection switches for detecting the locked state and the unlocked state of the door lock knob provided inside the door, which are turned on when the door lock knob is in the unlocked state and turned off when the door lock knob is in the locked state. FIG. 3 shows a door lock knob 25 and a driver's seat state detection switch 22 provided inside the driver's seat door 24. Note that the same applies to the passenger seat, and illustration thereof is omitted. Reference numerals 26 and 27 denote door switches that detect the open / closed states of the driver's seat and the passenger's seat door, and both are turned on when the door is opened and turned off when the door is closed.

Numerals 28 to 31 are door lock actuators for driving the door lock mechanism of each door to lock or unlock the doors. 28 is a driver seat door, 29 is a passenger seat door, and 30 is a rear seat right. For the door, 31 is for the rear seat left door. Reference numeral 32 is a lock relay that supplies power to the door lock actuators 28 to 31 from the battery 33 to drive them to the lock side, and conversely, 34 is an unlock relay that drives to the unlock side. 35
Is a control circuit composed of a microcomputer and its peripheral parts, and controls the lock relay 32 and the unlock relay 34 based on the detection signals from the key switch 21, the state detection switches 22 and 23 and the door switches 26 and 27. Turn on / off and lock / unlock each door. Reference numeral 36 denotes a constant voltage power supply unit that stabilizes the voltage of the battery 33 and supplies a constant voltage power supply to the control circuit 35.

When the key is inserted into the ignition key cylinder, the key switch 1 is closed (hereinafter, the closed state of the switch is called ON and the open state is called OFF), and the power supply voltage of the battery 33 is passed through the resistor 37. It is applied to the terminal 35b of the control circuit 35. That is, the terminal 35b is Hi
It becomes a level. Further, when both the door lock mechanism of the driver's seat and the passenger's seat are locked, and the state detection switches 22 and 23 of the driver's seat and the passenger's seat are both off, the power supply voltage of the battery 33 is the resistor 38. , 39 to the terminal 35c, and the terminal 35c is in the Hi level state. When the door lock mechanism of the driver's seat or the passenger's seat is unlocked and one of the state detection switches 22 and 23 is turned on, the connection point between the resistor 38 and the resistor 39 is connected to the common line. That is, the terminal 35c of the control circuit 35 becomes Lo level. Further, when both the driver's seat and passenger's seat doors are closed and the driver's seat and passenger's seat door switches 26, 27 are turned off, the power supply voltage of the battery 33 passes through the resistors 40, 41. The voltage is applied to the terminal 35d, and the terminal 35d is in the Hi level state. When the door of the driver's seat or the passenger's seat is opened and one of the door switches 26 and 27 is turned on, the connection point between the resistor 40 and the resistor 41 is connected to the common line. That is, the terminal 35d of the control circuit 35 becomes Lo level. Reference numerals 42 to 44 are filter capacitors, which prevent noise and the like generated during chattering of the switches 21 to 23, 26 and 27 from mixing into the input terminals 35b to 35d of the control circuit 35 and causing the control circuit 35 to malfunction. To do.

FIG. 4 is a control program executed by the control circuit 35, and FIGS. 5 and 6 are time charts showing a key forgetting prevention operation. The operation of the embodiment will be described with reference to these drawings. In step S1 of FIG. 4, whether or not the driver's door state detection switch 22 and the passenger's door state detection switch 23 are switched from on to off, that is, both the driver and passenger's door lock knobs are set to the lock side. It is determined whether or not it has been operated, and if it is detected that it has been operated to the lock side, the process proceeds to step S2. In step S2, the door switch 26, 2 for the driver's seat or passenger's seat
It is determined whether any one of 7 is turned on, that is, whether the door of the driver's seat or the passenger's seat is opened, and if it is open, the process proceeds to step S3, and if not, the step S3.
Go to 10. In step S3, it is determined whether or not the key switch 21 is turned on, that is, whether or not the key is inserted in the ignition key cylinder. If the key is in the inserted state, the process proceeds to step S4. If not, the process proceeds to step S10.

When all the steps S1 to S3 are affirmed, it means that the key is locked without forgetting to remove the key from the ignition key cylinder.
When this state is detected, first in step S4, for example, wait for 0.3 seconds, and then in step S5, the terminal 3
An unlock signal is output to 5f for 1.4 seconds, for example. That is, the terminal 35f is set to Lo level for 1.4 seconds. As a result, a current flows from the battery 33 through the coil of the unlock relay 34, the terminal 35f, the terminal 35g, and the common line, and the unlock relay 34 is excited (hereinafter, the excited state of the relay is referred to as ON and non-excited). The state is called off). At this time, the contact of the unlock relay 34 is switched from the B side to the A side, and the current flows from the battery 33 to the contact A of the unlock relay 34 → actuators 28 to 31 → contact B of the lock relay 32 → the common line. The actuators 28 to 31 drive the door lock mechanism of each door to the unlock side.

At this time, when at least the door lock mechanism of the driver's seat door and the passenger's seat door is unlocked by the actuators 28 to 31, the state detection switches 22, 23 are turned on as shown in FIG. Indicates that the door lock mechanism of the passenger door is unlocked. At this time, as described above with reference to FIGS. 8 and 9,
In the door lock mechanism of the driver's door or passenger's door, the protrusion 4a of the sub-lever 4 is the protrusion 5 of the open lever 5.
When the door lock mechanism cannot be unlocked by interfering with a, either of the state detection switches 22 and 23 of the driver's door or the passenger's door remains off as shown in FIG.

Next, at step S6, the door switch 26,
It is determined whether all 27 are turned off, that is, whether the driver's seat door and the passenger seat door are closed. When the doors are closed, the process proceeds to step S7 and waits, for example, 0.3 seconds. In a succeeding step S8, a lock signal is output to the terminal 35e for 0.3 seconds. That is, the terminal 35e is set to Lo level for 0.3 seconds. As a result, from the battery 33 to the coil of the lock relay 32 → terminal 35e → terminal 35g →
Current flows through the common line path, and the lock relay 32 is turned on. At this time, the contact point of the lock relay 32 is from the B side to A
To the contact side of the relay 32 from the power supply 33 → actuators 28 to 31 → contact B of the relay 34 → current flows through a common line path, and the actuators 28 to 31 drive the door lock mechanism of each door to the lock side. To do. As a result, even if the protrusion 4a of the sub-lever 4 interferes with the protrusion 5a of the open lever 5 at the door lock mechanism portion of the driver's door or the passenger's door to cause a catch, the drive to the lock side is performed. Then the catch is removed.

In step S9, the terminal 35 is turned on again.
An unlock signal is output from f for 1.4 seconds, for example, and the unlock relay 34 is turned on to activate the actuators 28 to 31.
Drive to the unlock side. This unlocks all doors. On the other hand, when it is determined in step S2 that the door is closed, or when it is determined in step S3 that the key is not inserted in the ignition key cylinder, in step S10, a lock signal to the terminal 35e is transmitted, for example. Output for 0.7 seconds, lock relay 32
Is turned on to drive the actuators 28 to 31 to the lock side. That is, when the door lock knob is driven to the lock side while the doors are closed, this is a normal door lock operation and locks all the doors. Similarly, if the door lock knob is operated to the lock side when the door is open and no key is inserted into the ignition key cylinder, it is a normal keyless lock operation and locks all the doors.

As described above, when the key switch 21 detects the key insertion state of the ignition key cylinder and the door switches 26 and 27 detect the opening of the door, the state detection switches 22 and 23 unlock the door lock knob. When it is detected that the door is operated, the actuators 28 to 31 are driven to the unlock side, and thereafter, when door closing is detected by the door switches 26 and 27, the actuators 28 to 31 are once operated.
Since it is designed to be driven to the unlock side after being driven to the lock side, the sub-lever 4 of the door lock mechanism section is
Even if the protrusion 4a of the door and the protrusion 5a of the open lever 5 interfere with each other and are caught, the hook is released when the door lock mechanism is once driven to the lock side, and the door is then driven to the unlock side to ensure the operation. The door can be unlocked and the door is prevented from being locked while the key is inserted in the ignition key cylinder.

In the above-described embodiment, even when the sub-lever and the open lever of the door lock mechanism do not get caught during the initial unlocking operation and the door is normally unlocked, the door lock mechanism is once driven to the lock side and then unlocked again. Although it was driven to the lock side, the state detection switch 2 determines whether the door is unlocked at the time of the initial unlocking drive.
2 and 23, and if the door is normally unlocked, the lock drive after the door is closed and the subsequent unlock drive may not be performed.

In the above embodiment, the state detection switch and the door switch are provided on the driver's seat door and the passenger's door to perform the key removal forgetting prevention operation. However, the key removal forgetting prevention operation is performed only by the driver's door. Alternatively, a state detection switch and a door switch may be provided on all seat doors to perform the key removal forgetting prevention operation.

In the configuration of the above embodiment, the key insertion detection switch 21 is the key insertion state detection means, the door switches 26 and 27 are the door opening / closing detection means, the door lock knob 25 is the door lock operation member, and the state detection switch 2
Reference numerals 2 and 23 constitute lock / unlock detection means, and the control circuit 35, the lock relay 32 and the unlock relay 34 constitute drive control means.

[0023]

As described above, according to the present invention, when the key insertion state of the ignition key cylinder is detected and the door open state is detected, the operation of the door lock operating member to the locked state is detected. Then, the actuator is drive-controlled to the unlocking side, and thereafter, when the door closing is detected, the actuator is once drive-controlled to the locking side, and then the drive-control is again performed to the unlocking side.
Even if the door lock mechanism is initially locked when it is driven to the unlocking side and remains locked, it will be disengaged when driving to the locking side, and it will be possible to drive it to the unlocking side thereafter. The door lock mechanism can be reliably unlocked, and it is possible to avoid locking the vehicle door with the key inserted in the ignition key cylinder.

[Brief description of drawings]

FIG. 1 is a diagram for responding to a complaint.

FIG. 2 is a block diagram showing the configuration of an embodiment.

FIG. 3 is a view showing a mounting state of a door lock knob and a state detection switch.

FIG. 4 is a flowchart showing an example of a control program for performing a key forgetting prevention operation.

FIG. 5 is a time chart showing a key removal forgetting prevention operation.

FIG. 6 is a time chart showing a key removal forgetting prevention operation.

FIG. 7 is a time chart showing a conventional key removal forgetting prevention operation.

FIG. 8 is a view showing a state of a door lock mechanism portion when a keyless lock is performed by pulling an outside handle of a vehicle.

FIG. 9 is a diagram showing a state of the door lock mechanism unit when an unlocking operation is performed by the actuator to prevent forgetting to remove the key.

[Explanation of symbols]

 1 Outside Handle 2, 7, 10 Rod 3 Outside Lever 4 Sub Lever 5 Open Lever 6, 25 Door Lock Knob 8 Knob Lever 9 Key Lever 21 Key Insertion Detection Switch 22 Driver's State Detection Switch 23 Passenger's State Detection Switch 26 Driver's Door Switch 27 Passenger door switch 28 Door lock actuator for driver's door 29 Door lock actuator for passenger door 30 Rear seat right door door lock actuator 31 Rear seat left door door lock actuator 32 Lock relay 33 Battery 34 Unlock relay 35 Control Circuit 36 Constant voltage power supply unit 37-41 Resistor 42-44 Capacitor 100 Door lock mechanism 101 Actuator 102 Door lock operating member 103 Locking / unlocking detection hand Step 104 Door open / close detection means 105 Key insertion state detection means 106 Drive control means

Claims (1)

Claims: 1. A door lock mechanism provided on a vehicle door, an actuator for locking or unlocking the door lock mechanism, and a door for locking or unlocking the door lock mechanism from a vehicle interior. A lock operating member, a locking / unlocking detecting means for detecting a locked state and an unlocked state of the door lock operating member, a door open / close detecting means for detecting an open / closed state of the door, and a key insertion state of an ignition key cylinder. When the key insertion state detecting means for detecting and the key insertion state of the ignition key cylinder is detected by the key insertion state detecting means, and the open state of the door is detected by the door opening / closing detecting means, the locking / unlocking is performed. It is detected by the lock detecting means that the door lock operating member is operated from the unlocked state to the locked state. Then, in the vehicle door lock control device comprising a drive control means for driving and controlling the actuator to the unlocking side, the drive control means controls the drive of the actuator to the unlocking side and then the door opening / closing detecting means. When a closed state of the door is detected by, the vehicle door lock control device is characterized in that the actuator is once drive-controlled to the locking side and then again drive-controlled to the unlocking side.