JPH08260791A - Power feed control device for slide door - Google Patents

Abstract

PURPOSE: To reduce the cost and to improve the freedom of design, by making it possible to transmit a signal as to the operation of a handle switch by utilizing a set of connector, as well as to feed the power to an automatic lock device and an automatic lock releasing device through the connector, in a slide door furnishing the above both devices. CONSTITUTION: The control circuit b2 for lock of an automatic lock device, and the control circuit c2 for lock releasing of an automatic lock releasing device, are connected to a set of connector e, a resistance value detector m to detect the variation of the resistance value at the connector e side is provided to a feed coversion control circuit h to convert the feed conversion switch g of a power source circuit d at the car body side connected to the connector e, and the opening operation of a door handle is detected at a specific resistance value variation. The feed conversion control circuit h is made possible to feed the power only in the period from the time the opening operation of the door handle is detected in the car stopping time, during a specific time passes after a slide door is closed again, after it is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic lock device provided on a sliding door of an automobile and a power supply control device for a sliding door for controlling power supply to an automatic lock releasing device.

[0002]

2. Description of the Related Art Conventionally, as a device for driving an actuator provided in a slide door, for example, Japanese Patent Laid-Open No. 5-2 is known.
The automatic lock device described in Japanese Patent No. 80238 is known.

The automatic lock device includes a lock body in which a striker and a latch are engaged with each other, a close lever which is engaged with the latch in the half-latched state and rotates the latch until the latch is in a full-latch state, and the close lever. An actuator that is driven and a lock control circuit that controls the drive of this actuator. When the door is closed and the latch is in the half-latch state, the lock actuator is driven and the close lever moves the latch to the full-latch state. Is. Therefore, even a slide door that requires a relatively large force to move in the closing direction can be reliably brought into the fully latched state.

Further, the power supply to the automatic lock device of the slide door is carried out through a connector. In other words, the slide door is not a structure in which one end is attached to the vehicle body like a rotating door, but is a structure in which the entire body moves with respect to the vehicle body and separates from the vehicle body when opened, so It is difficult to keep the power supply circuit on the side of the vehicle body connected to the above device. Therefore, conventionally, as shown in FIG. 8, a set of connectors 01 for connecting the vehicle body side terminal and the door side terminal when the slide door is closed is provided, and the lock control circuit 02 is provided via this connector 01. In addition, power is supplied to the lock actuator 03.

Furthermore, since this automatic lock device is unnecessary after the slide door is closed, it is unnecessary to operate the automatic lock device. Therefore, power is supplied after the operation, including the purpose of preventing an unexpected short circuit or dark current. I'm trying not to.

That is, as shown in the figure, a timer circuit 05 is provided in the power supply circuit 04, and after a certain time has elapsed since the sliding door was closed, the power supply circuit 04 is cut off to cut off the power supply. The timer circuit 05 connects the power supply circuit 04 again when the slide door is opened.

[0007]

By the way, the applicant of the present application has proposed to provide the slide door with an automatic lock releasing device for automatically releasing the lock, in addition to the above automatic locking device. As shown in FIG. 8, this automatic lock releasing device includes a lock releasing actuator 06 connected to a member for driving a latch, a lock releasing control circuit 07 for controlling the driving of the actuator 06, and a door handle opening operation. When the handle switch 08 is turned on, the lock release control circuit 07 is configured to drive the lock actuator 06 for a predetermined time when the handle switch 08 is turned on. Therefore, when the sliding door is opened, if the door handle is opened, the lock release actuator 06
Is driven to automatically disengage the latch and striker to release the lock, reducing the force required to release the lock.

However, this automatic lock release device is operated at the time when the operation of opening the slide door is performed, and at this time, the power supply circuit connected to the connector 01 to which the above automatic lock device is connected. 04
Is cut off by the operation of the timer circuit 05. As described above, since the automatic lock device and the automatic lock release device are activated at different times, when both are installed side by side with the slide door, as shown in FIG. It was necessary to provide 09 to connect to the power supply circuit 04 on the vehicle body side. Therefore, there is a problem in that the addition of one set of connectors 09 leads to an increase in cost, and the degree of freedom in design is limited because it is necessary to secure the installation location of the connectors.

Further, in the automatic lock release device, it is necessary to consider not to perform the lock release operation during traveling, so the power supply control circuit 01 for cutting off the power supply during traveling.
0, on the other hand, it is necessary to supply power when the door handle is opened, so it is necessary to transfer the signal obtained by the operation of the door handle 08 to the power supply control circuit 010. Therefore, there is a problem in that the additional setting of the connector further increases the cost and limits the degree of freedom in design.

The present invention has been made by paying attention to the above-mentioned conventional problems, and in a sliding door provided with an automatic lock device and an automatic lock release device, power supply to both devices is unnecessary by one set of connectors. It is possible to cut the power supply at the time and to transmit a signal related to the operation of the handlebar switch by using this connector to reduce the cost and improve the design flexibility.

[0011]

In order to achieve the above-mentioned object, according to the present invention, as shown in the claim correspondence diagram of FIG. 1, a striker and a latch provided on the vehicle body are engaged with the inside of the sliding door. Lock body a that locks the sliding door
And an automatic locking device b that drives the locking actuator b1 to move the latch from the half-latch state to the full-latch state, and a lock release actuator c1 that drives the latch to move out of engagement with the striker. An automatic lock releasing device c for releasing the lock is provided, and the automatic lock device b has a lock control circuit b2 for controlling the drive of the lock actuator b1.
The automatic lock release device c is provided with a lock release control circuit c2 for controlling the drive of the lock release actuator c1, and both control circuits b2 and c2 are provided between the slide door and the vehicle body. A pair of connectors on the power supply side and the grounding side, each of which has a door side contact connected to the vehicle body side contact and a vehicle body side contact connected to the vehicle body side power supply circuit d, and both contacts are connected when the sliding door is closed. Is provided and at least the lock release control circuit c2 is a normally open handlebar switch f that is closed while the door handle is being opened.
The power supply circuit d is provided with a power supply changeover switch g for opening and closing the power supply circuit d, and a power supply control circuit h for controlling the changeover of the power supply changeover switch g is provided.
The power feeding control circuit h is connected to a running state detecting means j for detecting a running state of a vehicle and an open / close detecting means k for detecting an open / closed state of a slide door, and changes the resistance value of the circuit on the connector e side. Resistance value detector m to detect
Is provided, and when the closed state of the slide door is detected by the opening / closing detection means k, the power supply changeover switch g is opened while traveling is detected by the traveling state detection means j, while the traveling state detection means j is opened. When the resistance value detecting unit m detects a predetermined decrease in the resistance value in addition to the detection of the vehicle stop, the power supply changeover switch g is closed, and the open / close detecting unit k detects the open state of the slide door. In some cases, the power feeding changeover switch g is closed, and after that, when a closed state of the slide door is detected and a predetermined time has elapsed, the power feeding changeover switch g is opened.

[0012]

The operation of the present invention will be described with reference to FIG. 1. When the slide door is closed, a pair of connectors e are connected to the vehicle body side contact and the door side contact, respectively, and are provided on the slide door. The circuit b2 and the lock release control circuit c2 are connected to the power supply circuit d of the vehicle body.

At this time, when the vehicle is traveling, since the traveling state detecting means j detects traveling, the power feeding control circuit h opens the power feeding changeover switch g and the power source circuit d.
Is shut off. Therefore, both of the control circuits b2 and c2 are in a state where they cannot perform control operation. Therefore, even if the door handle is opened at this time, the lock release control circuit c2 does not perform the control operation, and the lock release actuator c1 does not drive, so that the lock is not released.

By the way, when the door handle is opened to close the handle switch f, the resistance value on the side of the lock release control circuit c2, which was infinite due to the handle switch f being open until then, reaches a predetermined value. Since the lock release control circuit c2 is connected to the power supply circuit d via the connector e at this time, this change is detected by the resistance value detection unit m of the power supply control circuit h on the vehicle body side. If the running state detecting means j detects that the vehicle has stopped when the decrease in the resistance value is detected, the power feeding control circuit h causes the power feeding changeover switch g.
Is closed, and power can be supplied from the power supply circuit d to the slide door. Therefore, the lock release control circuit c2 performs a control operation, the lock release actuator c1 is driven, and the lock is released.

After the lock is released, when the slide door is opened, both contacts of the connector e are separated and the control circuits b2 and c2 on the slide door side and the power supply circuit d on the vehicle body side are disconnected. At this time, in the power feeding control circuit h, the opening / closing detection means k detects that the slide door is open, and thus the power feeding switch g is maintained in the closed state.

Therefore, after that, when the sliding door is closed and both contacts of the connector e are connected, power can be supplied to both control circuits b2 and c2 of the sliding door, and the latch of the lock body a becomes a half latch. Then, the lock control circuit b2 performs a control operation to drive the lock actuator b1 to enter the full latch state.

Then, after the sliding door is closed, when a predetermined time has passed, the power feeding control circuit h causes the power feeding changeover switch m.
Is opened and the power is not supplied. After that, the above-described operation when the slide door is closed is performed.

[0018]

Embodiments of the present invention will be described with reference to the drawings.

FIG. 2 is a side view of an automobile having a slide door D to which the lock control device according to the embodiment of the present invention is applied. It is slidably supported, and a lock body R is provided at the rear end of the slide door D and the vehicle body. A door handle H is connected to the lock body R via a transmission mechanism 20. A lock knob N and a door lock solenoid 50 are connected to the transmission mechanism 20, and the opening operation force of the door handle H is not transmitted to the lock body R when the lock knob N is operated or the door lock solenoid 50 is driven. That is, the door is locked without releasing the lock.

As shown in the perspective view of FIG. 3, the lock body R is rotatably supported by a striker 1 fixed to a vehicle body B and a base plate 2 (see FIG. 5) provided inside a door D. The latch 3 is provided, a pole 4 that restricts the rotation of the latch 3, and an open lever 5 attached to a shaft that supports the pole 4. The latch 3 is provided with an engagement groove 3a for engaging the striker 1,
It is provided with engaging protrusions 3b and 3c formed on both sides thereof and an engaging lever 3d formed on the opposite side thereof. Then, as shown in FIG. 4A, the state in which the engagement protrusion 3b is engaged with the pole 4 is a half-latch state, and as shown in FIG. 4B, the engagement protrusion 3c is connected to the pole 4. The engaged state is the full-latch state.

FIG. 5 is a perspective view of the lock body R.
As shown in, the open lever 5 is engaged with the engagement rod 6 a of the release lever 6. The release lever 6 is a rod 2 that constitutes a part of the transmission mechanism 20.
1 is connected to the door handle H.

A close lever 8 is rotatably supported on the base plate 2 for engaging the engaging lever 3d of the latch 3 to rotate the latch 3 from a half latch state to a full latch state. There is. The reduction gear 9 and the rod 10 are attached to the close lever 8.
Lock motor (lock actuator) via
2 is connected.

Further, a lock release solenoid (lock release actuator) 32 is connected to the release lever 6 via a rod 31 (see FIG. 6).
Depending on whether the drive of the lock releasing solenoid 32 is transmitted or the opening operation of the door handle H is transmitted, the release lever 6 is rotated in the direction of (a) in the drawing to flip up the open lever 5 to increase the open lever in the drawing. When rotated in the B direction, the pawl 4 and the latch 3 are disengaged and the lock is released. The lock release solenoid 32 pushes the rod 31 only when energized to rotate the release lever 6 in the direction a in the figure, and when the energization is cut off, the rod 31 is pushed by the urging force of the return spring provided inside. The release lever 6 is pulled back to its original position and returned to its original position.

The base plate 2 is provided in the vicinity of the open lever 5 and the projection 5a of the open lever 5 is provided when the latch 3 is in the half-latch state.
A half-latch switch 7 that is pushed in and turned on, a full-latch switch 13 that is provided in the vicinity of the close lever 8 and that is turned on when the close lever 8 turns the latch 3 to a full-latch state, A neutral switch 14 is provided near the reduction gear 9 and is turned on when the reduction gear 9 rotates until it returns to the neutral position where the close lever 8 does not engage with the latch 3.

Further, when the door handle H is opened at a position near the door handle H, the door handle H is opened.
A handle switch 15 is provided which is pushed by a lever (not shown) provided in the above and is turned on.

Then, each of the switches 7, 13 and 14
Is connected to the lock control circuit 41, and the handle switch 15 is connected to the lock release control circuit 4 as shown in FIG.
Connected to 2.

When the latch 3 enters the half-latch state and the half-latch switch 7 is closed, the lock control circuit 41 drives the lock motor 12 in the normal direction to automatically bring the latch 3 into the full-latch state by the closing lever 8. When the full latch switch 13 is closed by rotating the lock motor 12 until the lock lever 12 is returned to the neutral position, the lock motor 12 is reversely driven until the close lever 8 returns to the neutral position.

On the other hand, when the door handle H is opened and the handle switch 15 is closed, the lock release control circuit 42 drives the lock release solenoid 32 for a certain short time (about several msec) to release the lock. Solenoid 32
During the driving of (1), the control for locking the lock control circuit 41 is performed.

Two sets of connectors 61 and 62 are provided between the door D and the vehicle body B. Each connector 6
1, 62 are vehicle body side terminals 61ba, 61bb, 62ba, 62bb fixed to the vehicle body B and door side terminals 61da, 62db, 62da, 6 fixed to the door D, respectively.
2db and is configured to be connected to both terminals when the door D is closed.
1da and 61db are connected to the door lock solenoid 50, while door side terminals 62da and 6 of the connector 62 are connected.
2db is connected to both control circuits 41 and 42.

The vehicle body side terminals 61ba, 61bb, 62ba, 62bb of the connectors 61, 62 are connected to the power source E of the vehicle body B and the power source circuit 70 connected to the ground side, and the vehicle body side terminals of the connector 61 are connected. A door lock control circuit 71 is provided in a power supply circuit 70 connected to 61ba, while a vehicle body side terminal 62d of a connector 62 is provided.
The power supply circuit 70 connected to a is provided with a power supply changeover switch 72 and a power supply control circuit 73. The door lock control circuit 71 will not be described in detail because it is not related to the subject matter of the present application, but the door lock actuator 50 is controlled to be driven when the vehicle speed detected by the vehicle speed sensor 74 exceeds a predetermined value. It is a thing.

The power supply changeover switch 72 has a connector 6
It is a relay switch capable of switching between a state in which power feeding to 2 is impossible and a state in which power feeding to 2 is not possible, and the opening / closing is controlled by the power feeding control circuit 73.

The power supply control circuit 73 is provided in addition to the power supply changeover switch 72, a vehicle speed sensor 74 which outputs a signal corresponding to the vehicle speed, and is provided at the door opening of the vehicle body B and operates in response to opening and closing of the door D. A door switch 75 is connected, and a resistance value detector 73b connected to a terminal 73a connected to the power supply circuit 70 is provided. In the figure, reference numeral 76 is a backflow preventing diode.

The contents of the opening / closing control of the power supply changeover switch 72 by the power supply control circuit 73 will be described in the form of the flowchart of FIG.

When the door D is fully closed, the connector 62 is in the connected state and the door switch 75 is in the OFF state. At this time, the power feeding control circuit 73 sets the power feeding switch 72 to the standby state. (Step S
1).

In this standby state, the vehicle speed sensor 74
Whether there is a vehicle speed signal from the vehicle is determined (step S2), and YE
If S, that is, the vehicle is traveling and the vehicle speed signal is generated, the detection by the resistance value detection unit 73b is canceled (step S3), and the process returns to the standby state.

On the other hand, in step S2, if NO, that is, the vehicle is stopped and the vehicle speed signal is not generated, the opening operation of the door D is further performed (step S2).
4) When the handle switch 15 is closed and this circuit is grounded, an impedance change occurs (the resistance value that was infinite until then decreases to a predetermined value), and this resistance change is detected by the resistance value detection unit 73b. When detected (step S5), the power feeding switch 72 is closed (step S6).

Power is supplied to the connector 62 by the closing operation of the power supply changeover switch 72 (step S7), and the lock release control circuit 42 performs the control operation in response to the handle switch 15 being closed to release the lock. The solenoid 32 for driving is driven to release the lock (step S
8).

After that, it is determined whether the door D is in the open state or not by the door signal from the door switch 75 (step S9). If NO, that is, the door D is not locked for some reason (for example, the door is locked). If it remains closed, activate the timer function for a specified time (short time of several msec)
After measuring (step S10), the power supply changeover switch 7
Open 2 (step S11) and return to the standby state.

On the other hand, if YES is determined in step S9, that is, if the door D is actually opened after the lock is released and the door switch 75 is turned ON, the power feeding switch 72 is kept closed (step S12). ).
In addition, when the door D is opened, the connector 62 has both terminals 62ba,
Since 62bb is separated from 62da and 62db, power is not supplied to the door D side even when the power supply changeover switch 72 is closed.

After that, when the closing operation of the door D is performed (step S13) and the connector 62 is brought into the connected state, the door D
When it becomes possible to supply power to the control circuits 41 and 42, and the latch 3 enters the half-latch state, the lock control circuit 41
Is performed (step S13), the lock motor 12 is driven, the lock body R is fully latched, and the door D is closed to close the door switch 75.
Is turned off (step S14). At this time, since the door handle H is not opened, the handle switch 15 is turned off, and the lock release control circuit 42 is released.
Does not take control action.

After that, in the power supply control circuit 73, the timer function measures the predetermined time (about several seconds) (step S15), and then the power supply switch 72 is opened (step S15) to return to the standby state of step S1.

As described above, in the power supply control device for the slide door of this embodiment, when the slide door D is provided with the automatic lock device and the automatic lock release device, the lock control circuit 41 for both devices is provided. In addition, the connection between the lock release control circuit 42 and the power supply circuit 70 on the vehicle body side is 1
While only the set of connectors 62 is used, it is possible to accurately supply power to both control circuits 41 and 42 having different control operations when control operation is required, and cut power supply when control operation is not required. As a result, it is possible to prevent an unexpected short circuit, an unexpected lock release, and the like, and it is possible to reduce the number of connectors and reduce the cost and improve the degree of design freedom without causing such a problem.

In addition, the resistance value detecting section 7 is provided in the power feeding control circuit 73.
Since 3b is provided and the operation of the handle switch 15 is detected from the resistance of the circuit connected to the connector 62, the connector for the circuit for transmitting the signal indicating the operation of the handle switch 15 is not required, and thereby, Also, it is possible to reduce costs and improve design flexibility.

Although the embodiment has been described above, the specific structure is not limited to this embodiment, and the present invention includes a design change and the like without departing from the gist of the invention.

For example, the lock actuator, the lock release actuator, and the door lock actuator are
Actuators other than those shown in the embodiments may be used. That is, a motor may be used instead of the solenoid of the embodiment.

Each control circuit may be composed of an electric element, an IC, or a microcomputer.

[0047]

As described above, in the power supply control device for the sliding door of the present invention, the lock control circuit for the automatic lock device and the lock release control circuit for the automatic lock release device are provided in one set of connectors. To detect the change in resistance value on the lock release control circuit side with the handle switch connected to the power supply changeover control circuit that switches the power supply changeover switch provided on the power supply circuit on the vehicle body side connected to this connector. A resistance value detection unit is provided to detect that the opening operation of the door handle has been performed by a predetermined resistance value change, and the power supply switching control circuit can perform the opening operation of the door handle when the vehicle is stopped. , After the slide door is opened, the power is supplied only until the slide door is closed and the predetermined time elapses. In a slide door that is equipped with a power release device, it is possible to supply power to both devices with one set of connectors and cut power supply when not needed, which can reduce cost and improve design flexibility. The operation of the handlebar switch can be detected on the vehicle body side without adding a connector for transmitting a signal indicating the operation of the handlebar switch. This also has the effect of reducing the cost and improving the degree of freedom in design.

[Brief description of drawings]

FIG. 1 is a diagram corresponding to claims showing a power supply control device for a slide door according to the present invention.

FIG. 2 is a side view of an automobile to which the apparatus of the embodiment is applied.

FIG. 3 is a perspective view showing a main part of a lock body of the embodiment apparatus.

FIG. 4 is an explanatory diagram of an operation of a main part of the embodiment apparatus.

FIG. 5 is a perspective view of a lock body of the embodiment apparatus.

FIG. 6 is a circuit diagram of an example device.

FIG. 7 is a flowchart showing control contents of a power supply control circuit of the embodiment apparatus.

FIG. 8 is a circuit diagram of a conventional technique.

[Explanation of symbols]

 a lock body b automatic lock device b1 lock actuator b2 lock control circuit c automatic lock release device c1 lock release actuator c2 lock release control circuit d power supply circuit e connector f handle switch g power supply changeover switch h power supply control circuit j running State detecting means k Opening / closing detecting means m Resistance value detecting means

Claims (1)

[Claims] 1. A lock body for locking a slide door by engaging a striker provided on a vehicle body with a latch inside the slide door, and a lock actuator driven to lock the latch from a half latch state to a full latch state. And an automatic lock releasing device which is driven by a lock releasing actuator to move the latch in a direction to disengage from the striker to release the lock. , A lock control circuit for controlling the drive of the lock actuator is provided, the automatic lock release device is provided with a lock release control circuit for controlling the drive of the lock release actuator, Between the door side contact connected to both control circuits and the vehicle body side contact connected to the vehicle body side power circuit And a pair of connectors on the power supply side and the grounding side to which both contacts are connected when the sliding door is closed. At least the lock release control circuit is provided while the door handle is being opened. A normally open handle switch to be closed is connected to the power supply circuit, a power supply changeover switch for opening and closing the power supply circuit is provided, and a power supply control circuit for performing switching control of the power supply changeover switch is provided. The control circuit is connected to a running state detecting means for detecting the running state of the vehicle and an open / close detecting means for detecting the open / closed state of the slide door, and a resistance value detecting section for detecting a change in the resistance value of the circuit on the connector side. Is provided, and when the closed state of the slide door is detected by the opening / closing detection means, while the traveling state is detected by the traveling state detection means, the power supply switching switch is provided. On the other hand, when the running state detecting means detects that the vehicle is stopped and the resistance value detecting section detects a decrease in the predetermined resistance value, the power supply changeover switch is closed, and the opening / closing detecting means slides the door. When the open state is detected, the power supply changeover switch is closed, and after that, when a closed state of the slide door is detected and a predetermined time has elapsed, the power supply changeover switch is controlled to be opened. Power supply control device for sliding doors.