JPH09268824A - Door locking device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To invalidate the function to automatically lock a door as necessary by detecting the vehicle speed. SOLUTION: A logical circuit to invalidate the locking signal from a vehicle speed sensor 22 when the Lo signal is received by both of an input terminal 62 of the locking signal and an input terminal 63 of the unlocking signal is incorporated in a microcomputer 70. In a service station or the like, the automatic locking function through detection of the vehicle speed is invalidated all the time by removing a locking/unlocking intensive switch 12 on a door arm rest, and forcibly earthling the terminals 62, 63 of a connector.

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 device having a vehicle speed interlocking door lock function for automatically locking each door of an automobile in response to a vehicle speed.

[0002]

2. Description of the Related Art Conventionally, a door lock device has been known in which a centralized switch provided in a driver's seat door armrest of an automobile can collectively control locking and unlocking of each door. In addition, a door lock device having a vehicle speed interlocking function that automatically locks all the doors at once when the speed of the vehicle exceeds a certain speed is widely used. However, for passengers who do not want this kind of vehicle speed interlocking function,
Since there is an inconvenience that the function cannot be canceled by one's own intention, a door lock device that allows the occupant to select whether or not to use the vehicle speed interlocking function as needed is also proposed (for example, Kaihei 7-102,8
No. 44). This door lock device does not newly provide a switch for selecting whether to use the vehicle speed interlocking function, continuously pressing the existing door lock switch for a certain time or more, or a predetermined number of times within a certain time. By pushing, the vehicle speed interlocking function is stopped or restored.

[0003]

However, in the above-mentioned conventional door lock device, since it is necessary to use the existing door lock switch to send a signal different from the steady signal for locking and unlocking, that signal is inevitable. There was a problem that it became complicated. In particular, this problem became more prominent as the attempt was made to prevent erroneous recognition of a stationary signal by clearly distinguishing it from a stationary signal. In this way, if the selection signal for the vehicle speed interlocking function becomes complicated, it is necessary for the microcomputer to recognize the complicated switch operation, which complicates the configuration of the logic circuit, which not only increases the cost but also keeps the vehicle speed interlocking function as it is. There is also a possibility that it will be an excessive function for the occupant who wants to use it.

The present invention has been made in view of the above problems of the prior art, and it is possible to use or not use the vehicle speed interlocking function with a simple program without complicating the logic circuit of the microcomputer. An object is to provide a vehicle door lock device that can be selected.

[0005]

In order to achieve the above object, a vehicle door lock device of the present invention according to claim 1 is
Manual locking / unlocking signal transmitting means for transmitting a signal for locking or unlocking the door by operation of an occupant, and vehicle speed interlocking locking for transmitting a signal for locking the door when the vehicle speed exceeds a reference value. In a vehicle door lock device having a signal transmitting means and a locking / unlocking means for bringing the door into a locked state or an unlocked state based on a signal from the manual locking / unlocking signal transmitting means or the vehicle speed interlocking locking signal transmitting means, When a combination signal which is not used is input from the manual locking / unlocking signal sending means, a vehicle speed interlocking locking signal invalidating means for invalidating the signal sent from the vehicle speed interlocking locking signal transmitting means to the locking / unlocking means is further provided. It is characterized by

In the vehicle door lock device according to the present invention, there is provided vehicle speed interlocking locking signal invalidating means, and when the signal transmitted from the vehicle speed interlocking locking signal transmitting means to the locking / unlocking means is invalidated, manual locking / unlocking is performed. Among the combinations of signals sent from the signal sending means, unused combination signals are used. Therefore, the input terminal from the manual locking / unlocking signal transmitting means can be used as it is, and the vehicle speed interlocking function can be easily canceled by assembling the logic circuit for invalidating the signal transmitted from the vehicle speed interlocking locking signal transmission means. Further, since the combination signal which is not used is used, there is no possibility of erroneously recognizing it as a stationary signal for manually locking and unlocking.

In the vehicle door lock device according to the first aspect of the present invention, the input of the unused combination signal from the manual locking / unlocking signal transmitting means is not particularly limited, but it is more preferable to mainly perform the maintenance / inspection of the vehicle. . After removing the output terminal of the manual locking / unlocking signal sending means, forcibly input a pseudo signal to the terminal to invalidate the signal from the vehicle speed interlocking locking / unlocking signal sending means, then output terminal of the manual locking / unlocking signal sending means again. This is because the vehicle speed interlocking function remains disabled as it is, so that the occupant does not need to perform any operation thereafter. In addition, since the signal that is confused with misunderstanding is not input once it is invalid, the cancellation of the vehicle speed interlocking function can be reliably continued.

In the vehicle door lock device according to the first aspect, only when necessary, that is, when the occupant desires,
The vehicle speed interlocking function is invalidated, but in some cases, the vehicle speed interlocking function may be restored and used. Therefore,
The vehicle door lock device according to claim 2 releases the invalidation command signal from the vehicle speed interlocking locking signal invalidating means and validates the signal transmitted from the vehicle speed interlocking locking signal transmitting means to the locking / unlocking means. It is characterized by further comprising a vehicle speed interlocking locking signal returning means.

According to another aspect of the present invention, there is provided a vehicle door lock device having a vehicle speed interlocking locking signal restoring means, releasing the invalidation command signal from the vehicle speed interlocking locking signal invalidating means, and unlocking from the vehicle speed interlocking locking signal sending means. Since the signal sent to the lock means is validated, the vehicle speed interlocking function is once disabled, but even if the vehicle speed interlocking function is desired to be restored for some reason, it can be easily processed. That is, the signal input for canceling the invalidation command signal and validating the vehicle speed interlocking function is not particularly limited, but it is more preferable to perform it mainly during the maintenance and inspection of the vehicle as in the invalidation processing. If you use an empty input terminal of a computer with a built-in logic circuit, forcibly input a pseudo signal to the terminal, cancel the invalid command signal from the vehicle speed interlocking lock signal invalid means, and restore it This is because the effective state of the vehicle speed interlocking function continues, and the occupant does not need to perform any operation thereafter. In addition, since the signal that is erroneously confused with the invalidation command signal is not input once it is valid, the vehicle speed interlocking function can be reliably continued.

On the other hand, in the vehicle door lock device according to a third aspect of the present invention, when the signal sent from the vehicle speed interlocking locking signal invalidating means to the locking / unlocking means is invalidated by the vehicle speed interlocking locking signal invalidating means, It is characterized in that the locking / unlocking means is temporarily operated. Further, in the vehicle door lock device according to claim 4, when the signal sent from the vehicle speed interlocking locking signal returning means to the locking and unlocking means by the vehicle speed interlocking locking signal restoring means becomes effective, the locking and unlocking means is provided. Is operated temporarily.

As described above, in the vehicle door lock device according to the present invention, the vehicle speed interlocking function is made invalid or effective by forcibly inputting the pseudo signal to the existing input terminal. Therefore, it is possible to determine whether the current state is the invalid state or the valid state only after traveling. However, in the vehicle door lock device according to claims 3 and 4,
When invalidation processing or restoration processing of the vehicle speed interlocking function is performed,
Since the locking / unlocking means temporarily operates, it is possible to determine whether the current vehicle speed interlocking function is in the invalid state or the valid state by distinguishing this operating state.

In the vehicle door lock device according to any one of claims 1 to 4, the structure of the manual locking / unlocking signal sending means is not particularly limited, but in the vehicle door lock device according to claim 5, the manual locking / unlocking signal is provided. The delivery means has a neutral position and 2
It is characterized by comprising a selective switch capable of selecting any one of the two terminals, wherein the unused combination signal is a negation signal of the combination signal in the neutral position.

In the vehicle door lock device according to the present invention, since the manual locking / unlocking signal transmitting means is composed of a selective switch capable of selecting either the neutral position or one of the two terminals, the locking / unlocking means is operated. The combinations of the sending signals are three sets of the sending signal in the neutral position, the sending signal in which one terminal is input, and the sending signal in which the other terminal is input, and therefore, the negative signal of the sending signal at the neutral position. Is not used. Therefore, since the negative signal of the combination signal at the neutral position can be used as the input signal for invalidating the vehicle speed interlocking function, the input terminal of the selective switch is connected to the input terminal of the selective switch as in the vehicle door lock device according to any one of claims 1 to 4. The vehicle speed interlocking function can be canceled as it is by using a logic circuit which can be used as it is and which invalidates the signal transmitted from the vehicle speed interlocking locking signal transmitting means. Further, since the neutral position negative signal, which is a combination signal which is not used, is used, there is no possibility of erroneous recognition as a steady signal for manual locking / unlocking.

[0014]

According to the vehicle door lock device of the present invention, the input terminal from the manual locking / unlocking signal sending means can be used as it is, and the signal sent from the vehicle speed interlocking locking signal sending means is invalidated. Since the vehicle speed interlocking function can be canceled simply by assembling a logic circuit, the cost can be reduced. Further, since the combination signal which is not used is used, there is no possibility of erroneously recognizing it as a stationary signal for manually locking and unlocking.

According to the vehicle door lock device of the second aspect, the vehicle speed interlocking function is once disabled, but even when the vehicle speed interlocking function is desired to be restored for some reason, an empty terminal of a computer or the like is used. It can be dealt with by simply constructing a simple logic circuit. Also, once valid, there is no risk of a signal confused with the invalid command signal being confused, so the vehicle speed interlocking function can be reliably continued.

As described above, according to the present invention, the vehicle is capable of selecting whether to use the vehicle speed interlocking function or not according to the occupant's needs with a simple program without complicating the logic circuit of the microcomputer. A door lock device can be provided.

On the other hand, according to the vehicle door lock device of the third and fourth aspects, when the invalidation process or the restoration process of the vehicle speed interlocking function is performed, the locking / unlocking means is temporarily operated. By distinguishing between, it is possible to determine whether the current vehicle speed interlocking function is in the invalid state or the valid state.

According to the vehicle door lock device of the fifth aspect, since the combination of the negative signals of the sending signal at the neutral position is not used, the negative signal of the combination signal at the neutral position is used as the vehicle speed interlocking function. Can be used as an input signal for invalidating, and the input terminal of the selective switch can be used as it is, similarly to the vehicle door lock device according to the first to fourth aspects, and the signal transmitted from the vehicle speed interlocking locking signal transmission means can be used. You can easily cancel the vehicle speed interlocking function simply by building a logic circuit to disable it. Further, since the neutral position negative signal, which is a combination signal which is not used, is used, there is no possibility of erroneous recognition as a steady signal for manual locking / unlocking.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a vehicle door lock device of the present invention, FIG. 2 is a circuit diagram showing an embodiment embodying the same, FIG. 3 is a logic circuit diagram of a microcomputer shown in FIG. 2, and FIG. 6 is an automobile. FIG. 8 is a perspective view showing the indoor side of the vehicle door, and FIG. 8 is a sectional view showing an embodiment of the selective switch according to the present invention.

The vehicle door lock device 100 according to the present embodiment.
Has a manual locking / unlocking signal sending means 10, a vehicle speed interlocking locking signal sending means 20, a vehicle speed interlocking locking signal invalidating means 40, a vehicle speed interlocking locking signal returning means 50, and a locking / unlocking means 30 to which these signals are input. ing.

The manual locking / unlocking signal sending means 10 is a so-called manual switch 12 for sending out a signal for locking or unlocking the door by the operation of the occupant, which is the driver's seat side of the front door D shown in FIG. A central switch 12 provided on the armrest D1 for centrally managing locking and unlocking of all doors, or a manual switch of each door for managing locking and unlocking of each door. It is good, but below, centralized switch 12 which carries out overall management
An example in which the present invention is applied to will be described. The signal from the manual locking / unlocking signal sending means 10 is sent to the controller 6 shown in FIG.
It is sent to the locking / unlocking means 30 via 0.

As shown in FIG. 2, the centralized switch 12
Is a selective switch capable of selecting only one of the three positions of the movable contact 12c from the neutral position, the locking contact 12a, and the unlocking contact 12b, and is mechanically shown in FIG. It can be configured as in (B).

That is, the centralized switch 12 shown in FIG. 8 (A) is capable of seesaw-like operation to the left and right in the drawing around a pivot, and the contacts 12a, which come into contact with the legs of the switch button 12d, The elastic force of 12b holds the neutral position when there is no load. When the occupant swings the switch button 12d in either direction, the contact 12a or 12b on that side is electrically connected to the contact 12c.

Specifically, as shown in FIG. 2, the locking contact 12a and the unlocking contact 12b of the centralized switch 12 are applied with a low voltage (for example, about 5V) in the controller 60, and the centralized switch is When 12 is in the neutral position, “Hi” is input to the lock signal input port 72 and the unlock signal input port 73 of the microcomputer 70, respectively.
Is input.

However, when the occupant pushes the centralized switch 12, for example, when pushing the locking contact 12a side, the locking contact 1
2a is grounded and the voltage applied in the controller 60 is reduced to 0V, whereby the "Lo" signal is input to the lock signal input port 72 of the microcomputer 70. Then, as shown in FIG. 3, the "Lo" signal input to the lock signal input port 72 is the NOT (NOT) circuit 70a in the microcomputer 70.
Becomes a "Hi" signal, and the lock signal output port 75
Then, the lock relay 32 is operated to rotate the actuator 36 for mechanically performing the door lock operation in the lock direction.

The centralized switch 12 has an unlocking contact 12b.
When pushed to the side, the unlocking contact 12b is grounded and the voltage applied in the controller 60 drops to 0V,
As a result, the signal “Lo” is input to the unlock signal input port 73 of the microcomputer 70. And FIG.
As shown in, the "Lo" signal input to the unlock signal input port 73 becomes a "Hi" signal by the NOT (NOT) circuit 70b in the microcomputer 70, and the unlock signal output port 76 releases the unlock relay. 34,
The actuator 36 is rotated in the unlocking direction which is the opposite direction to the locking direction.

The centralized switch 12 shown in FIG. 8 (B) is another embodiment of the present invention, which is swingable up and down in the figure around a rotation fulcrum, and is not shown on the switch button 12d. The elastic body holds the neutral position when there is no load. When the occupant pushes the switch button 12d or pulls it up, the contact 12a or 1
2b is electrically connected to the ground contact 12c. The concrete structure of the centralized switch 12 according to the present invention is shown in FIG.
The embodiment is not limited to the embodiments shown in (A) and (B).

The vehicle speed interlocking locking signal transmitting means 20 is a means for controlling the so-called vehicle speed interlocking function, which transmits a signal for locking all the doors when the vehicle speed exceeds a reference value. The vehicle speed is detected using the vehicle speed sensor 22 shown in FIG. 2 and the like. When the vehicle speed exceeds a predetermined reference speed (for example, 10 km / h), the controller 60
A current flows through the transistor 24 connected via the vehicle speed sensor input terminal 61, and the “Hi” signal is input to the vehicle speed input port 71 of the microcomputer 70. The “Hi” signal input to the vehicle speed input port 71 is connected to the locking signal output port 75, but is invalidated by the output signals from the vehicle speed interlocking locking signal invalidating means 40 and the vehicle speed interlocking locking signal restoring means 50 described later. Or, it is valid. The details will be described later.

The locking / unlocking means 30 locks or unlocks the door on the basis of the signal from the manual locking / unlocking signal sending means 10 or the vehicle speed interlocking locking / locking signal sending means 20 described above. Locking relay 3 provided
2. An unlock relay 34 and an actuator 36 that mechanically performs a door lock operation. The actuator 36 is provided on each door and is, for example, a motor or a solenoid valve that operates a door lock link (not shown) to the locking side or the unlocking side. In FIG. 2, only one actuator 36 is shown, but the actuators provided on all the doors are operated by the centralized switch 12.

The vehicle door lock device 100 of the present embodiment.
When the unused combination signal is input from the manual locking / unlocking signal transmitting means 10, the vehicle speed interlocking locking signal transmitting means 20
It has a vehicle speed interlocking locking signal invalidating means 40 for invalidating the signal sent from the vehicle to the locking / unlocking means 30.

That is, from the manual locking / unlocking signal transmitting means 10, the locking side switch is input to the locking signal input port 72 and the unlocking signal input port 73 of the microcomputer 70 in the neutral position (Hi, Hi). In case of (Lo, Hi), when the unlocking side switch is inputted, three combination signals of (Hi, Lo) are inputted,
Due to the structure of the centralized switch 12, the combination signal of (Lo, Lo) is not input. That is, in the present embodiment, (L
The combination signal of (o, Lo) is an unused signal. Therefore, in the present embodiment, in the microcomputer 70,
When this (Lo, Lo) combination signal is input,
A logical circuit for invalidating the signal transmitted from the vehicle speed interlocking locking signal transmitting means 20 to the locking / unlocking means 30 is assembled, and the vehicle speed interlocking locking signal invalidating means 40 is constituted by this.

As a concrete logic circuit, as shown in FIG. 3, the NAND circuit 7 for obtaining the negation of the logical product of the signals from the lock signal input port 72 and the unlock signal input port 73.
0c, a timer 70d that measures the time when the NAND circuit 70c outputs the "Hi" signal, and outputs the "Hi" signal when the output of the "Hi" signal for a certain time or longer is confirmed, and this timer The signal from 70d is applied to the negation circuit 70
An AND circuit 70f for obtaining the logical product of the signal inverted by e and the signal from the vehicle speed sensor 22, and an AND circuit 70g for obtaining the logical product of the signal from the timer 70d and the "Lo" signal which is the ground level. Two AND circuits 70
and an OR circuit 70h for calculating the logical sum of the output signals from the f and 70g and sending the logical sum to the lock signal output port 75.

According to this logic circuit, the NOT circuit 70e,
If the output signal from the OR circuit 70h is “Hi”, the output signal from the OR circuit 70h is output by the selection circuit including the AND circuits 70f and 70g and the OR circuit 70h.
Regardless of the output signals "Hi" and "Lo" from the vehicle speed sensor 22, the ground level input to the AND circuit 70g, that is, the "Lo" signal is always output, while the output signal of the timer 70d is " If it is "Lo", the output signal "Hi" or "Lo" from the vehicle speed sensor 22 is output as it is. As a result, the input signal from the vehicle speed sensor 22 can be invalidated by inputting the “Lo” signal for a fixed time to both the lock signal input port 72 and the unlock signal input port 73.

Further, the vehicle door lock device 100 of the present embodiment releases the invalidation command signal from the vehicle speed interlocking locking signal invalidating means 40 described above, and sends it from the vehicle speed interlocking locking signal sending means 20 to the locking / unlocking means 30. It also has a vehicle speed interlocking locking signal restoring means 50 for validating the generated signal.

In the present embodiment, of the input terminals of the controller 60 and the input ports of the microcomputer 70, unused input terminals 64 (hereinafter referred to as return signal input terminals) and input ports 74 (hereinafter referred to as return signal input ports). ) Is used to constantly apply a low voltage (for example, about 5 V) during this time, and the microcomputer 70
A logic circuit is assembled inside, and a pseudo signal, that is, "Lo"
When a signal is input, the invalid command signal is released to restore the vehicle speed interlocking function.

A concrete logic circuit is as shown in FIG.
When the "Lo" signal input to the return signal input port 74 of the microcomputer 70 is inverted by the NOT circuit 70j to become a "Hi" signal, and the "Hi" signal continues for a certain time or more in the timer 70k, the timer The "Hi" signal is output from 70k, and the NOT circuit 70m inverts this to the "Lo" signal, and then connected to the output side of the timer 70d that constitutes the vehicle speed interlocking lock signal invalid means 40.
According to the logic circuit of the vehicle speed interlocking locking signal restoring means 50, the restoration signal input port 7 of the microcomputer 70 is provided.
As long as the "Lo" signal is not input to 4, the signal from the vehicle speed sensor 22 becomes invalid according to the output signal of the timer 70d that constitutes the vehicle speed interlocking locking signal invalid means 40, but the "Lo" signal is input to the return signal input port 74. When the signal is input, the output signal from the negation circuit 70m becomes "Lo", so the output signal from the vehicle speed sensor 22 becomes effective and the OR circuit 7
Signals of the same level are output from 0h.

In this embodiment, when the vehicle speed interlocking locking signal invalidating means 40 invalidates the signal sent from the vehicle speed interlocking locking signal transmitting means 20 to the locking / unlocking means 30, the locking / unlocking means 30 is temporarily operated. To remind the operator that it has been disabled. Specifically, the door is locked and then immediately unlocked. As a result, it is possible to confirm that the invalid operation of the vehicle speed interlocking function has been performed without driving the vehicle.

To the same effect as this, even when the vehicle speed interlocking locking signal restoring means 50 makes the signal sent from the vehicle speed interlocking locking signal sending means 20 to the locking / unlocking means 30 valid, the locking / unlocking means 30. To operate temporarily. Specifically, since it is necessary to distinguish from the case of the invalidation process, the door is locked once, immediately unlocked, and then locked again. As a result, it is possible to confirm that the vehicle speed interlocking function has been restored without driving the vehicle, and it is possible to distinguish from the case where the vehicle speed interlocking function is invalid.

Next, the procedure of the operation for invalidating the vehicle speed interlocking function and the operation for restoring the function will be described. 4 is a flowchart showing an invalidation processing procedure in the embodiment, FIG. 5 is a flowchart showing a restoration processing procedure in the embodiment,
FIG. 7 is an exploded perspective view of the door armrest for explaining the invalidation / returning process operation in the embodiment.

The vehicle door lock device 100 according to the present embodiment.
Performs the operation of invalidating or returning the vehicle speed interlocking function at, for example, a service factory. It is not limited to a service factory in particular, and there is no problem even when the vehicle is stopped, but in short, the occupant does not appropriately perform it while the vehicle is traveling, but rather, the invalidation process is performed semipermanently. Therefore, it is not necessary for the occupant to operate any of the switches while traveling, as well as a special switch for inputting the "Lo" signal to the lock signal input terminal 62 and the unlock signal input terminal 63 of the controller 60. .

When the vehicle speed interlocking function is disabled, in this embodiment, as shown in FIG. 7, in order to input the "Lo" signal to the lock signal input terminal 62 and the unlock signal input terminal 63 of the controller 60, as shown in FIG. After removing the switch box D2 from the door armrest D1 in a service factory or the like, the connector 14 connected to the central switch 12 of the door lock is removed. The base end of the connector 14 is connected to the controller 60 mounted in the vehicle compartment, and therefore the terminals 14a and 14b of the connector 14 are connected.
Are electrically connected to the lock signal input terminal 62 and the unlock signal input terminal 63 of the controller 60, respectively.

Therefore, the earth cord 42 having the two terminals 42a and 42b is prepared, and the terminals 42a and 42b are prepared.
Is connected to the terminals 14a and 14b of the connector 14, respectively, and the other end 42c of the earth cord is connected to the ground level, for example, the negative pole of the battery.

As a result, as shown in FIG. 4, in steps 100 and 101, both the lock signal input terminal 62 and the unlock signal input terminal 63 are set to the "Lo" level, and the timer 70d starts counting (step 10
2) If this state continues for a certain time or longer in step 103, the vehicle speed interlocking function is invalidated (step 10
4) Then, after the door is locked once, it is immediately unlocked (step 105). This allows the operator who is performing the operation to confirm that the invalidation processing operation has been performed accurately.

During the work, due to a bad contact between the earth cord 42 and the connector 14, the step 100 or 10
In step 2, when either the lock signal input terminal 62 or the unlock signal input terminal 63 is at the “Hi” level, the process proceeds from step 106 to step 108 or step 109 to 110 and returns to step 100 again. If not performed, the lock operation in step 105 does not occur. Therefore, the worker can determine that there is some work error. In addition, even when the earthing time by the earth cord 42 is short, the steps 103 to 100 are performed.
Similarly, the worker will be aware of a work mistake as he returns to.

When the invalidation processing is properly performed, the earth cord 42 is disconnected from the connector 14 and the switch box D2
Assemble to the door armrest D1 as before. As a result, even if this vehicle runs in the future, the vehicle speed interlocking function based on the output from the vehicle speed sensor 22 will always be canceled.

Next, for some reason, if the invalidation process is once performed and then the vehicle speed interlocking function is desired to be restored again, the following operation is performed. That is, as in the invalid operation, as shown in FIG. 7, after the switch box D2 is removed from the door armrest D1, the connector 14 connected to the central switch 12 of the door lock is removed. The base end of the connector 14 is connected to the controller 60 mounted in the vehicle compartment, and therefore the terminal 14c of the connector 14 is electrically connected to the return signal input terminal 64 of the controller 60.

Therefore, the terminal 42a of the earth cord 42 used previously is connected to the terminal 14c of the connector 14, and the other end 42c of the earth cord is connected to the ground level, for example, the negative pole of the battery.

As a result, as shown in FIG. 5, in step 200, the return signal input terminal 64 becomes "Lo" level, so the timer 70k starts counting (step 201), and this state is determined in step 202. After continuing for a certain period of time, the vehicle speed link function will be restored (Step 2
03) Then, the door is locked once, then immediately unlocked, and then locked again (step 204). This allows the operator who is performing the operation to confirm that the return processing operation has been performed accurately.

As described above, according to the vehicle door lock device 100 of the present embodiment, the vehicle speed interlocking function is disabled according to the user's need only by incorporating a simple logic circuit in the microcomputer 70. Since it is possible to restore an invalidated item, it is possible to meet the user's request without increasing the cost.

The embodiments described above have been described in order to facilitate understanding of the present invention, and are not described to limit the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

[Brief description of drawings]

FIG. 1 is a block diagram showing a vehicle door lock device of the present invention.

FIG. 2 is a circuit diagram showing an embodiment of a vehicle door lock device of the present invention.

FIG. 3 is a logic circuit diagram of the microcomputer shown in FIG.

FIG. 4 is a flowchart showing an invalidation processing procedure in the embodiment.

FIG. 5 is a flowchart showing a restoration processing procedure in the embodiment.

FIG. 6 is a perspective view showing the interior side of a vehicle door.

FIG. 7 is an exploded perspective view of a door armrest for explaining an invalidation / returning process operation in the embodiment.

FIG. 8 is a sectional view showing an embodiment of a selective switch according to the present invention.

[Explanation of symbols]

 100 ... Vehicle door lock device 10 ... Manual locking / unlocking signal sending means 12 ... Centralized switch (selective switch) 14 ... Connector 20 ... Vehicle speed interlocking locking signal sending means 22 ... Vehicle speed sensor 24 ... Transistor 30 ... Locking / unlocking means 32 ... Locking Relay 34 ... Unlocking relay 36 ... Actuator 40 ... Vehicle speed interlocking locking signal invalidating means 42 ... Earth code 50 ... Vehicle speed interlocking locking signal restoring means 60 ... Controller 61 ... Vehicle speed sensor input terminal 62 ... Locking signal input terminal 63 ... Unlocking signal input Terminal 64 ... Return signal input terminal 65 ... Locking signal output terminal 66 ... Unlocking signal output terminal 70 ... Microcomputer 71 ... Vehicle speed input port 72 ... Locking signal input port 73 ... Unlocking signal input port 74 ... Returning signal input port 75 ... Locking signal output port 76 ... Unlocking signal output port D ... Door D1 Door armrest

Claims (5)

[Claims] 1. A manual locking / unlocking signal sending means for sending a signal for locking or unlocking a door by an operation of an occupant, and a signal for locking the door when a vehicle speed exceeds a reference value. Vehicle speed interlocking locking signal transmitting means for transmitting,
In a vehicle door lock device having a locking / unlocking means for locking or unlocking the door based on a signal from the manual locking / unlocking signal sending means or the vehicle speed interlocking locking / locking signal sending means, the manual locking / unlocking signal It is characterized by further comprising vehicle speed interlocking locking signal invalidating means for invalidating the signal transmitted from the vehicle speed interlocking locking signal transmitting means to the locking / unlocking means when an unused combination signal is inputted from the transmitting means. Vehicle door lock device. 2. A vehicle speed interlocking locking signal restoring means for releasing the invalidation command signal from the vehicle speed interlocking locking signal invalidating means and validating the signal sent from the vehicle speed interlocking locking signal sending means to the locking / unlocking means. The vehicle door lock device according to claim 1, further comprising: 3. The locking / unlocking means is temporarily operated when the signal transmitted from the vehicle speed-locking lock signal sending means to the locking / unlocking means is disabled by the vehicle speed-locking lock signal invalidating means. The vehicle door lock device according to claim 1 or 2. 4. The locking / unlocking means is temporarily operated when a signal sent from the vehicle speed-locking lock signal sending means to the locking / unlocking means by the vehicle speed-locking lock signal returning means becomes valid. The vehicle door lock device according to any one of claims 1 to 3. 5. The manual locking / unlocking signal transmitting means comprises a selective switch capable of selecting one of the neutral position and the two terminals, and the unused combination signal is a negation of the combination signal in the neutral position. It is a signal, The door lock device for vehicles in any one of Claim 1 thru | or 4 characterized by the above-mentioned.