JP2002322867A - Automatic sliding door control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic sliding door control device capable of preventing flashing of a room lamp at closing driving time. SOLUTION: When a sliding door switch is operated at sliding door closing driving time, measurement of time by a full closure determining delay timer is started (S8). When a prescribed time set in the full closure determining delay timer passes, a driving motor of a sliding door is stopped (S10), and cutting processing for disengaging an electromagnetic clutch is executed (S11). Thus, closing driving of the sliding door by the driving motor can be continued until the prescribed time passes after operating the sliding door switch. Closure operation is completed during this time, a return of the sliding door by reaction of a weatherstrip is checked, and the flashing of the room lamp is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic sliding door control device for operating a sliding door.

[0002]

2. Description of the Related Art Conventionally, a vehicle is provided with a slide door for opening and closing a door opening, and is equipped with an automatic slide door control device for electrically controlling the opening and closing of the slide door.

The automatic sliding door control device includes a slide driving mechanism for electrically driving the sliding door to open and close from a fully closed position to a fully opened position, and includes a door switch that operates by detecting the fully closed position of the sliding door. Equipped,
When the operation of the door switch is detected during the closing drive, it is determined that the slide door has reached the fully closed position, and the closing drive of the slide door is stopped. At this time, when the slide door reaches the vicinity of the fully closed position, for example, when the half lock state of the door lock is detected, the slide door is retracted to the fully closed position to lock the slide door at the fully closed position. The closure is actuated so that the sliding door can be restrained in the fully closed position.

Further, by detecting the non-operating state of the door switch, it is possible to know that the sliding door has been opened. Therefore, the door switch is used to determine the lighting control of the room lamp which is turned on when the door is opened. Is also used. Thus, when the slide door reaches the fully closed position by the automatic sliding door control device and the door switch is operated, the room lamp that was lit while the door was open can be turned off.

[0005]

However, such a sliding door receives a reaction force of a weatherstrip which seals between the sliding door and the vehicle body when the sliding door reaches the vicinity of the fully closed position. . Therefore, if the slide door closing drive is stopped immediately after the door switch operation is detected,
The slide door is driven by the reaction force of this weather strip.
The closure was sometimes returned in the opening direction for the play of the closure. As a result, the door switch becomes inactive for a moment, and the turned off room lamp is turned on again.

At this time, since the closure is operating, the slide door is retracted to the fully closed position and is restrained. At this time, the door switch is operated and the room lamp is turned off. Thus, there is a problem that the room lamp blinks when the slide door is closed.

The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide an automatic sliding door control device capable of preventing a room lamp from blinking when a sliding door is closed. Things.

[0008]

In order to solve the above-mentioned problems, an automatic sliding door control device according to the present invention detects a fully closed position of a sliding door and operates, and turns off the light when the sliding door is fully closed. A door switch used to determine whether the room lamp is turned off, a slide mechanism for electrically driving the slide door to open and close from a fully closed position to a fully open position, and a slide mechanism that operates from near the fully closed position to operate the slide door. An automatic sliding door control device that is provided in a vehicle having a closure that locks the sliding door to the fully closed position by retracting to the fully closed position, and that performs drive stop processing of the slide driving mechanism based on operation of the door switch. When the operation of the door switch is detected during the closing drive, the drive stop processing is performed after a predetermined time has elapsed from the detection of the operation of the door switch. And a stop process delaying means for performing.

That is, when the sliding door that is being driven to close by the closing drive of the sliding door drive mechanism reaches near the fully closed position, the slide door is pulled to the fully closed position to lock the slide door to the fully closed position. Closure starts to operate. At this time, the slide door receives a reaction force from the weather strip.

When the door switch is operated after reaching the fully closed position, the lit room lamp is turned off. Thereafter, when a predetermined time has elapsed from the detection of the operation of the door switch, a drive stop process for stopping the closing drive of the slide door drive mechanism is performed. That is, the closing drive of the slide door is continued until a predetermined time elapses after the operation of the door switch.

At this time, a predetermined time has elapsed since the start of the closure operation, and the sliding door is
The closing drive is taken over by the closure and moved to the fully closed position.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a vehicle 1 equipped with an automatic sliding door control device according to the present embodiment. The vehicle 1 has an opening 2 for getting on and off and a step 3 on a vehicle body side. And a slide door 4 for opening and closing the entrance opening 2. Also,
A weather strip fixed to the vehicle body is provided around the entrance / exit opening 2, and when the slide door 4 is closed, the weather strip comes into contact with the slide door 4 and enters the vehicle compartment such as rainwater. It is configured so as to prevent intrusion of intrusion.

The upper end of the slide door 4 on the front side of the vehicle is supported by an upper roller bracket 12 which moves along an upper guide rail 11 provided on the upper edge of the opening 2 for getting on and off. The step 3 is supported by a lower roller bracket 14 that moves along a lower guide rail 13 (see FIG. 2) provided on the lower surface. A central portion on the rear side of the vehicle is supported by a rear roller bracket 16 that moves along a rear guide rail 15 provided on the side of the vehicle body. The rear roller bracket 16 is connected to a driving wire 17, The opening / closing opening 2 is configured to be moved from a fully-opened position where it is fully opened to a fully-closed position where it is fully closed.

A closure unit 21 is provided in the slide door 4, and a receiving terminal 22 for receiving power supply to the closure unit 21 is provided at a front edge of the slide door 4. . In addition, a supply terminal 24 that forms a pair with the reception terminal 22 is provided on a pillar 23 that forms an edge of the entry / exit opening 2 on the front side of the vehicle. It is configured to be connected to the receiving terminal 22 from the point of time when it is moved and to supply power to the closure unit 21.

FIG. 2 schematically shows a cross section along the upper portion of the rear guide rail 15 and a cross section along the upper portion of the lower guide rail 13, and a slide drive mechanism such as a drive motor, an electromagnetic clutch, a drive wire, and various pulleys. The drive wire 17 has a loop shape. A part of the drive wire 17 is formed on the rear guide rail 15.
And is supported by the rear guide rail 15 via rail end casings 31 provided at the front end and the rear end of the rear guide rail 15. The drive wire 17 arranged in the rear guide rail 15
A bracket mounting portion (not shown) is provided in the middle of the bracket, and the bracket mounting portion is mounted on the rear roller bracket 16. The rear roller bracket 16
Is provided with a rear roller 32 so as to be able to move in the rear guide rail 15.

The rear roller 32 is connected to the slide door 4.
Roller 32c supporting the load of the sliding door 4
The front thrust roller 32b and the rear thrust roller 32a restrict the movement in the vehicle width direction and move along the rear guide rail 15.

At the front end of the rear guide rail 15, a guide pulley 42 supported by a pulley mounting bracket 41 is provided, and the drive wire 17 inserted through the rail end casing 31 passes through the guide pulley 42. It is folded back. The drive wire 17 turned back by the guide pulley 42 and the drive wire 17 inserted through the rail end casing 31 at the rear end of the rear guide rail 15
Are slidably covered by drive wire casings 43, 43. The drive wire casing 43 is provided with wire fixing portion brackets 44, 44 provided at its ends.
And is fixed to the vehicle body via. The drive wires 17 extending from the drive wire casings 43, 43 are:
The intermediate portion is wound around the driving pulley 45, and a predetermined tension is given by tension mechanisms 46, 46 provided before and after the driving pulley 45.

The tension mechanism 46 is, as shown in FIG. 3, a base 52 fastened and fixed to the vehicle body with bolts (not shown) inserted into bolt holes 51, 51, and rotatably supported by the base 52. And two guide pulleys 53, 53, and a tension pulley 54 is provided between the two guide pulleys 53, 53. The tension pulley 54 has a rotation shaft 55 movably supported along a guide elongated hole 56 of the base 52, and is movably supported in a direction perpendicular to the extending direction of the drive wire 17.
The rotation shaft 55 is supported by a support rod 58 urged by a spring 57, and urges the tension pulley 54 with the spring 57, whereby a predetermined force is applied to the drive wire 17 through the tension pulley 54. It is configured to be able to apply tension. The base 52 is provided with a stopper rod 59 for externally supporting the spring 57, and is configured to restrict the movement of the support lot 58 in the direction opposite to the biasing direction by the spring 57.

As shown in FIG. 2, the drive pulley 45 is axially connected to a final reduction gear 61, and is configured to rotate integrally with the final reduction gear 61.
Further, a pulley-side gear 62 is meshed with the final reduction gear 61.
A motor-side gear 63 is provided. The motor side gear 6
A meshing electromagnetic clutch 64 is provided between the gear 3 and the pulley-side gear 62. When the electromagnetic clutch 64 is engaged, the two gears 62 and 63 rotate integrally while the electromagnetic clutch 64 rotates. When the clutch 64 is in the disengaged state, the engagement between the gears 62 and 63 is disconnected.

That is, the electromagnetic clutch 64 is a clutch that intermittently connects the motor-side gear 63 and the pulley-side gear 62 (not shown), and the rotating shaft of the motor-side gear 63 has an electromagnetic The motor-side teeth of the clutch 64 are fastened, and the door-side teeth of the electromagnetic clutch 64 having irregularities meshing with the irregularities of the motor-side teeth are arranged on the tip side of the motor-side teeth. The door-side teeth form a fastened state meshed with the unevenness of the motor-side teeth by an electromagnetic action when the built-in coil is energized, and when the energization to the coil is cut off, the built-in spring By the biasing force described above, it is possible to form a released state (a state in which the fastening is broken) apart from the unevenness of the motor-side teeth. The pulley gear 62 is connected to the shaft of the door teeth.

The motor-side gear 63 is connected through an intermediate gear 71 to a worm gear 74 provided on a drive shaft 73 of a drive motor 72. Thus, the drive pulley 45 is rotated by driving the drive motor 72 while the electromagnetic clutch 64 is engaged, so that the slide door 4 can be pulled and moved by the drive wire 17. When the drive of the drive motor 72 is stopped, the movement of the slide door 4 due to its own weight on the slope can be restricted by the mechanical load of the drive transmission mechanism 75. On the other hand, in a state where the electromagnetic clutch 64 is released, the slide door 4 can be manually moved without applying the mechanical resistance.

In the vicinity of the final reduction gear 61, an encoder 81 for generating a pulse in accordance with the rotation of the final reduction gear 61, that is, the movement of the slide door 4.
(For example, a known contact type two-phase encoder). This encoder 81 is provided with the position of the sliding door 4,
Although it is provided as means for detecting the moving speed and moving direction, it can be replaced with an encoder using an optical sensor capable of detecting normal rotation and reverse rotation (moving direction), or another position detection switch. is there.

The encoder 81 includes an electromagnetic clutch 64
The position, the moving speed, and the moving direction of the slide door 4 can be detected even when the slide door 4 is manually opened and closed.

The lower roller bracket 14 supporting the front end of the slide door 4 is provided with a lower roller 91 so as to be able to move within the lower guide rail 13.

The lower roller 91 is connected to the sliding door 4.
Roller 91c supporting the load of the sliding door 4
The front thrust roller 91b and the rear thrust roller 91a restrict the movement in the vehicle width direction and move along the lower guide rail 13.

At the rear end of the lower guide rail 13, a full-open stopper 93 that abuts against a contact surface 92 of the lower roller bracket 14 and restricts the rearward movement is fixed to the vehicle body via a full-open stopper mounting bolt 94. ing. Also, the rear side of the lower guide rail 13 prevents the sliding door 4 from moving forward due to its own weight on a sloping road, and prevents the sliding door 4 from being accidentally moved forward due to luggage touching the sliding door 4. A check link 96 is provided. As shown in FIG. 4, the check link 96 is inserted through the hole 95 and protrudes inward. The check link 96 is a rear thrust of the lower roller 91 that has moved over the check link 96 and moved rearward. The roller 91a is formed in a concave shape protruding inward and bent in order to contact the rear thrust roller 91a so as to prevent the sliding door 4 from moving forward due to its own weight or careless movement of the roller 91a. When the contact surface 92 of the lower roller bracket 14 is in contact with the fully opened stopper 93, the check link 96 is connected to the rear thrust roller 91 a by the check link 9.
6 so that the lower roller bracket 14 can be moved forward from the state in which the rear thrust roller 91a is in contact with the fully open stopper 93 so that the rear thrust roller 91a is in contact with the check link 96. Have been.

The drive motor 72 and the electromagnetic clutch 64 are connected to an automatic sliding door unit 201 installed in the vehicle 1, as shown in FIG.

This automatic sliding door unit 201
As shown in FIG. 5, a microcomputer M (microcomputer) having a built-in ROM and RAM is mainly configured, and is connected via a circuit breaker 211 to the battery 212 for driving the drive motor 72 described above. And an electric power supply 21 for driving the microcomputer.
3 is connected. An ignition switch 214 is connected to the automatic sliding door unit 201, and a shift P switch 215 that is turned on when the select lever is selected to a P range is provided between the ignition switch 214 and the ignition switch 214. A stop lamp switch 216 that is turned on when the foot brake is operated is connected. Further, a main switch 217 is connected to the automatic sliding door unit 201, and the sliding door 4 can be driven by operating the main switch 217.

The automatic sliding door unit 2
01 is connected to a speed sensor 221 for detecting a vehicle speed and an alarm buzzer 222, and a slide door movement sensor 223. The sliding door movement sensor 223 includes the encoder 81 described above, and the encoder 81 includes a first pulse output 224 and a second pulse output 225. Both pulses 224,2
25 output from the slide door 4
The period is shortened as the moving speed of the slide door 4 is increased, and a pulse having a phase corresponding to the moving direction of the slide door 4 is output. The sliding door movement sensor 223 detects the speed and position of the sliding door 4 from the rotation speed of the encoder 81, and outputs a signal when the sliding door 4 reaches the fully open or fully closed position. A reversal detection output 226 and a GND line 227 as a ground for matching the voltage with the microcomputer M are provided and connected to the automatic sliding door unit 201.

Further, the automatic sliding door unit 201 has a parking switch 231 which is turned on when a parking brake is operated, and a sliding door 4.
, A slide door open switch 232 that is operated when the door is opened, a slide door close switch 233 that is operated when the door is closed, and a slide as a door switch that is turned off when the slide door 4 is fully closed. A door switch 234 is connected, and first and second supply outputs 235 and 236 for supplying power to the closure unit 21 are connected to the supply terminal 24. These first and second supply outputs 235, 236 include:
An operating current detecting unit 237 for measuring a passing current and transmitting the measured current to the microcomputer M is connected. The supply terminal 24 is configured to be connected to the receiving terminal 22 while the slide door 4 is located from the position immediately before the fully closed position to the fully closed position.

The control unit 251 of the closure unit 21 receiving power supply from the supply terminal 24 includes a latch release actuator 252 for driving a latch on the slide door 4 side locked by a striker of the vehicle body to release the lock state. A half switch 253 that detects and operates a half lock state (half latch) immediately before the latch is locked by the striker, and a full lock switch 254 that operates by detecting a state where the latch is locked by the striker. It is connected. Further, the closure unit 21 is connected to a closure motor 255 of a closure that operates when the half-locked state is detected and pulls the slide door 4 to the full-locked state. Further, there is provided a neutral switch 256 that operates by detecting a neutral state of the closure in a state where the closure has returned to the original position (neutral position) before the closure was operated.

The vehicle 1 has a well-known room lamp which is turned on when the slide door 4 is opened and turned off when the slide door 4 is fully closed. It is configured to be turned on and off according to the state of.

In the embodiment having the above-described configuration, the operation in a state where the slide door 4 is closed at a constant speed will be described with reference to a flowchart shown in FIG.

That is, during the closing operation, it is determined whether or not the slide door 4 has reached the area immediately before the fully closed state from the accumulated pulse number obtained by adding and subtracting the pulse from the slide door movement sensor 223, and the area before the fully closed area is determined. (S1). When the sliding door 4 reaches the area just before the full closing, the duty ratio of the driving pulse output to the driving motor 72 is increased in order to move the slide door 4 in the closing direction against the reaction force from the weather strip. Is increased (S2).

At this time, the receiving terminal 22 provided on the slide door 4 is connected to the supply terminal 24 provided on the vehicle body side, and power is supplied to the closure unit 21 of the slide door 4. Then, when detecting the half-lock state, the closure unit 21 starts the operation of operating the closure motor 255 of the closure and pulling the slide door 4 to the full-lock state (fully closed position).

The operating current of the closure unit 21, more specifically, the sliding door closure motor 25
5 is determined (S3). If the operation of the closure unit 21 cannot be detected and the closure motor 255 is stopped, the operation state of the slide door switch 234 is determined. (S4) When the operation current of the closure motor 255 is detected and the operation of the closure unit 21 is confirmed, the duty ratio of the drive pulse output to the drive motor 72 is reduced, and the output from the drive motor 72 is reduced. After lowering (S
5), a sliding door switch 234 which is a door switch
Is determined (S4).

In step S4, if the operation of the slide door switch 234 is not confirmed (the door switch is not turned off) and it is determined that the slide door 4 has not reached the fully closed position, It is determined whether or not the door closing speed has decreased from the pulse change (S6). If the door closing speed has not decreased, the process branches to step S2, whereas if the door closing speed has decreased, the process proceeds to step S2. Since it is conceivable that a foreign object is caught in the slide door 4, the subroutine is ended after performing a sandwich inversion operation process of opening the slide door 4 to the fully open position (S7).

At the time of the determination in step S4, the operation of the slide door switch 234 is confirmed (in a state where the door switch is turned off). If the slide door 4 has reached the fully closed position, the slide door switch 234 is fully closed. The time measurement by the judgment delay timer is started (S8). At this time, the operation of the slide door switch 234 (door switch OFF)
, The lit room lamp is turned off.

Then, the process waits until the counting by the fully closed judgment delay timer is completed (S9). The value of the fully closed judgment delay timer is determined by the closure unit 2
1 starts to operate and then the closure unit 21
The time required until the retraction of the slide door 4 is completed is set, for example, to 0.5 seconds.

Therefore, the closure unit 21 is not operated until a predetermined time elapses by the fully closed judgment delay timer.
Is operated in parallel with the closing drive of the slide drive mechanism.

When the predetermined time set in the fully closed judgment delay timer has elapsed, the drive motor 72 is stopped. That is, the power supply to the drive motor 72 is cut off to stop the drive motor 72 (S10), and the disconnection process of releasing the electromagnetic clutch 64 (release of the electromagnetic clutch 64)
Is performed (S11). Thus, the drive of closing the slide door 4 by the drive motor 72 can be continued until after the operation of the slide door switch 234 and the predetermined time by the fully closed determination delay timer elapses.

Since the time required for the closure unit 21 to complete the retraction of the slide door 4 is set as the value of the fully closed judgment delay timer, the predetermined time by the fully closed judgment delay timer elapses. When the drive motor 72 stops, the closure unit 21
Is completed, and the slide door 4 is locked at the fully closed position.

Therefore, when the drive motor 72 is stopped and the electromagnetic clutch 64 is disconnected to close the slide door 4, the slide door 4 is pulled from the position near the fully closed position to the fully closed position of the slide door 4 by the closure that has been activated. The weather strip can be kept pressed by the closing drive by the slide drive mechanism during this time, and the slide door switch 234 can also maintain the operating state.

Therefore, when the drive stop processing of the drive mechanism of the slide door 4 is performed, the slide door 4 is returned by the play due to the closure due to the reaction force of the weather strip, and the slide door switch 234 is temporarily deactivated ( As compared with the related art in which the door switch is turned ON, it is possible to reliably prevent the room lamp from blinking during the closing drive. Thereby, uncomfortable feeling can be prevented. In addition, it is possible to prevent a momentary return to the opening direction of the slide door during the slide door closing drive, so that the operation feeling can be improved.

Here, in the present embodiment, since the engagement type electromagnetic clutch 64 is used, in the disconnection processing of the electromagnetic clutch, the electromagnetic clutch 64 is used.
After the power supply to the drive motor 72 is cut off, the drive motor 72 is momentarily supplied with power so that the drive motor 72 rotates forward and reverse. As a result, the motor-side teeth of the meshing electromagnetic clutch 64 are moved, the teeth are released from the load applied between the motor-side teeth and the door-side teeth, the engagement of the teeth is eliminated, and the electromagnetic clutch 64 is moved. The cutting state is ensured (S11).

[0046]

As described above, in the automatic sliding door control device according to the present invention, the closing drive of the sliding door is continued until a predetermined time elapses after the door switch for detecting the fully closed position is operated. Can be. During this time, the operation of locking the slide door to the fully closed position by pulling the slide door to the fully closed position by the closure that has been started from the position near the fully closed position is being performed. Can be completed. That is, the closing drive of the slide door by the slide drive mechanism and the retracting operation of the slide door by the closure are performed in parallel. Therefore, the weather strip is kept pressed by the closing drive by the slide drive mechanism during this time, and the operating state of the door switch can be maintained.

Therefore, when the drive stop processing of the slide door drive mechanism is performed, the operation play of the closure is returned by the reaction force of the weather strip, and the door switch is temporarily deactivated. Thus, it is possible to reliably prevent the room lamp from blinking during the closing drive. Thereby, uncomfortable feeling can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a cross section of a main part of the embodiment.

FIG. 3 is a diagram showing a tension mechanism of the embodiment.

FIG. 4 is a sectional view showing a rear end of the lower guide rail according to the embodiment.

FIG. 5 is a block diagram according to the embodiment;

FIG. 6 is a flowchart showing an operation of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle 4 Slide door 64 Electromagnetic clutch 72 Drive motor 201 Auto slide door unit 234 Slide door switch M Microcomputer

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 2E052 AA09 BA01 CA06 DA08 DB08 EA15 EB01 GB13 GC06 GD11 KA25 LA07 5G025 AA13 CA05

Claims (1)

[Claims] 1. A door switch for detecting and operating a fully closed position of a slide door and used for judging a turning-off of a room lamp which is turned off when the slide door is fully closed, and electrically driving the slide door from a fully closed position to a fully open position. And a closure mechanism that operates from near the fully closed position to retract the slide door to the fully closed position and lock the slide door to the fully closed position. An automatic sliding door control device for performing a drive stop process of the slide drive mechanism based on the operation of the door switch, wherein when the operation of the door switch is detected during the closing drive, a predetermined time has elapsed since the detection of the operation of the door switch An automatic sliding door control device comprising a stop processing delay unit for performing the drive stop processing later.