JP2000145283A - Safety control method for power sliding device of vehicle sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To vary the sliding speed of a sliding door according to the sliding section of the sliding door. SOLUTION: In a safety control method of a power sliding device of a vehicle sliding door, a control part transforms the motor voltage MV supplied to a motor 7 to the minimum voltage ES required for moving the sliding door from the door closing decelerating speed CP to the half latch position when the sliding door is displaced from the half latch position to the door closing decelerating position CP on this side by door closing rotation of the motor 7. The control part transforms the motor voltage MV supplied to the motor 7 to the minimum voltage required for moving the sliding door to the fully opening position resisting the resistance of the fully opening stopper when the sliding door 2 is displaced to the door opening decelerating position on this side of the fully opening stopper by door opening rotation of the motor 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety control method for a power sliding device for a vehicle sliding door.

[0002]

2. Description of the Related Art Various types of power sliding devices for sliding a sliding door that opens and closes by sliding with respect to a vehicle body by motor power have been known. In addition, in these devices, when the sliding door is slid by power, when the body or other object is caught between the sliding door and the vehicle body (hereinafter, referred to as abnormal sliding), the sliding door is urgently operated. A safety device (safety control) is provided to stop or move the sliding door in the opposite direction.

[0003]

In the above-mentioned known device,
There was no idea to make the sliding speed of the sliding door variable according to the sliding section of the sliding door.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention improves the texture of the opening / closing operation of the sliding door by making the sliding speed of the sliding door variable in accordance with the sliding section of the sliding door, and a specific component which operates when the sliding door is opened / closed. To improve the durability of the specific part.

[0005]

Accordingly, the present invention provides a wire drum 8 connected to a sliding door 2 which opens and closes by sliding with respect to a vehicle body 1 via a wire cable 9; A motor 7 for rotating, and a battery 6 serving as a power source for the motor 7
6, a sensor including a sensor 76 for detecting a sliding speed SS of the sliding door 2, a transformer circuit 67 provided between the battery 66 and the motor 7, and a control unit 45 for controlling the whole. In the safety control method for the power sliding device of the sliding door, the control unit 45 controls the closing rotation of the motor 7 to close the sliding door 2 at a desired position before the half-latch position.
After the displacement, the motor voltage MV supplied to the motor 7 is transformed to the minimum voltage required for the sliding door 2 to move from the closed-door deceleration position CP to the half-latch position by using the transformation circuit 67. The safety control method is as described above. The present invention also provides a wire drum 8 connected to a slide door 2 that opens and closes by sliding with respect to the vehicle body 1 via a wire cable 9, a motor 7 for rotating the wire drum 8, A battery 66 serving as a power supply for the motor 7, a sensor 76 for detecting the sliding speed SS of the sliding door 2, a voltage transforming circuit 67 provided between the battery 66 and the motor 7, and a control for controlling the entire system Part 45
In the safety control method of the power sliding device for a vehicle sliding door, the control unit 45 determines that the sliding door 2 is set at a desired position before the full-open stopper 60 by the opening rotation of the motor 7. After the displacement to the deceleration position OP, the motor voltage MV supplied to the motor 7
Is a safety control method in which the sliding door 2 overcomes the resistance of the fully-open stopper 60 to reduce the voltage to a minimum voltage required for moving to the fully-open position by using the voltage transforming circuit 67.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a vehicle body of an automobile, and 2 denotes a slide door slidably attached to the vehicle body 1.
Is opened and closed by being guided by a guide rail 65 of the vehicle body 1 and sliding substantially parallel to the side surface of the vehicle body 1. 5
Is a power slide device provided inside a quarter panel (outer panel) 6 of the vehicle body 1, and slides the slide door 2 in a closing direction and an opening direction by motor power. The power slide device 5 includes a reversible motor 7 and a wire drum 8 that rotates by the power of the motor 7.
And The wire drum 8 and the sliding door 2 are connected by a wire cable 9, and when the wire drum 8 rotates in any direction by motor power, the wire cable 9 is pulled in any direction, and the sliding door 2 is closed or closed. Slide in the opening direction.

FIGS. 3 and 4 show a cross section of the wire drum 8 of the power slide device 5. The wire drum 8 includes a base plate 10 and a cover plate 11 fixed to the base plate 10 at a predetermined interval. Is supported by the drum shaft 12 in the case 61 of the power slide device 5 composed of The wire drum 8 is formed in a cylindrical shape having one closed side and the other open side, and the outer peripheral surface thereof has a wire groove 1 with which the wire cable 9 is engaged.
3 is formed. A relatively large internal space 14 is formed inside the wire drum 8, and a clutch mechanism 15 is substantially housed in the internal space 14. Clutch mechanism 15
Are connected states in which the output of the motor 7 is transmitted to the wire drum 8, unconnected states in which the rotation of the wire drum 8 is not transmitted to the motor 7, and rotation of the wire drum 8
It switches to the brake state transmitted to. These switching will be described in detail later. The detailed structure of the clutch mechanism 15 of the power slide device 5 does not constitute the gist of the present invention.
5 is novel and novel to the conventionally known clutch mechanism, and will be described in detail below so that its structure and operation can be easily understood.

The motor 7 is provided at the end of the drum shaft 12.
Drive gear 1 connected to the motor via a reduction mechanism (not shown)
6 and a guide plate 18, which is fixed to the drive gear 16 by a connecting pin 17 and rotates integrally, are rotatably mounted. The guide plate 18 is the drive gear 1
6, the drive gear 16 is omitted in FIG. 4 (and a drawing similar to FIG. 4) to simplify the drawing. A spring support 19 is rotatably mounted on a part of the outer periphery of the drum shaft 12, and a disk-shaped support plate 20 is rotatably mounted on the outer periphery of the spring support 19. A spring 23 is provided between the support plate 20 and the annular flange 21 of the spring support 19 via a tray 22. The spring 23 is provided for the purpose of imparting some rotational resistance to the support plate 20.

Bosses 24, 25 are formed on the outer periphery of the support plate 20, and swing arms 26, 27 are respectively rotated on the bosses 24, 25 by mounting shafts 28, 29 parallel to the drum shaft 12. Can be mounted freely. Slide pins 30 and 31 extending in parallel with the drum shaft 12 are provided on the tip ends of the swing arms 26 and 27, respectively.
The guide plate 18 includes the slide pins 30,
A pair of guide slots 32, 33, each of which is slidably engaged with each other, are formed. Guide slot 32,
Reference numeral 33 is symmetrical as shown in FIG. 5, and has arc-shaped inner slots 34, 35 centered on the drum shaft 12 and is connected to ends of the inner slots 34, 35 and extends in a direction away from the drum shaft 12. Each of the extension slots 36 and 37 and outer slots 38 and 39 communicating with the ends of the extension slots 36 and 37 and having an arc shape centered on the drum shaft 12. Inner wall 36 of extension slot 36, 37
The distance between A, 37A and the outer walls 36B, 37B increases as the distance from the drum shaft 12 increases. Outer slot 3
8 and 39 have semicircular engagement surfaces 38A and 39A, respectively.
And the other ends are formed on contact surfaces 38B, 39B which communicate with the outer walls 36B, 37B without any step. The length of the outer slots 38 and 39 is a length necessary for manual release of the clutch mechanism 15, which will be described later, and the length in which the slide pins 30 and 31 can move in the outer slots 38 and 39 is expressed as a moving distance T. I do.

A plurality of projections 40 projecting toward the drum shaft 12 are formed on the cylindrical inner surface (inner wall) of the wire drum 8 with a predetermined gap Y therebetween. Clutch pawls 41 and 42 projecting in the direction away from the drum shaft 12 are formed on the distal ends of the swing arms 26 and 27. One surface of the clutch pawls 41, 42 is formed on connecting surfaces 41A, 42A substantially parallel to the radial direction of the drum shaft 12, and the other surface is formed with brake concave portions 41B, 42B. Connecting surface 41
A, 42A and width Z between brake recesses 41B, 42B
Is smaller than the gap Y, and the clutch claws 41 and 42
The swing arms 26 and 27 are attached to the mounting shaft 2 as described later.
When it swings outward (in the direction of arrow A) around 8, 29, it enters the gap Y.

Reference numeral 60 denotes a fully-open stopper for holding the slide door 2 at the fully-open position. Various stoppers are known, but in the present application, a bent leaf spring, an elastic rubber, a roller having a spring elasticity, or the like is used. Use an elastic material. Each of these uses the elastic force to hold the slide door 2 at the fully open position, and has a simple and inexpensive structure. The fully-open stopper 60 is mounted on the vehicle body 1
Alternatively, it can be attached to any of the sliding doors 2. FIG. 1 shows a fully-open stopper 60 formed of a leaf spring disposed in a guide rail 65 of the vehicle body 1. When the slide door 2 slides to the predetermined position in the door opening direction, the stopper 60 in FIG. 1 comes into contact with a desired portion of the slide door 2. Further, when the sliding door 2 slides in the opening direction, the sliding door 2 moves over while elastically deforming the stopper 60 to reach the fully open position. Thereafter, the sliding door 2 is moved to the fully open position by the elastically restored stopper 60. Retained elastically. Here, the fully open position indicates a position between a position over the stopper 60 (a position beyond the dead center of the elastic body) and a position where the sliding door 2 slides in the opening direction and mechanically abuts. And has a width X of about several centimeters.

The slide door 2 is provided with a latch assembly 4 for holding the slide door 2 at the closed position. As shown in FIG. 2, the latch assembly 4 includes a latch 50 that engages with the striker 3 fixed to the vehicle body 1 and a ratchet 51 that engages with the latch 50. The latch 50 is urged in the clockwise direction by the elastic force of the spring 52, and the ratchet 51 is urged in the counterclockwise direction by the elasticity of the spring 53. When the sliding door 2 moves in the closing direction, the latch 50 comes into contact with the striker 3 and the ratchet 51 moves from the open position (unlatched position) indicated by the solid line to the latch 50.
The ratchet 51 is connected to the full latch step 5 of the latch 50 through the half-latch position engaged with the half-latch step 54 of FIG.
The slide door 2 is completely closed when the latch 50 is rotated to a full latch position (a position shown by a dotted line) which engages with the latch 5. The latch 50 has a latch 50
The switch 56 for detecting the position of is connected. 63 is an open handle for releasing the ratchet 51 from the latch 50; 64 is a switch for detecting the operation of the open handle 63; and 57 is a power opening device for releasing the ratchet 51 from the latch 50 by power.

Reference numeral 58 denotes a power closing device mounted inside the slide door 2, and the power of the power closing device 58 is transmitted to the latch 50 of the latch assembly 4 via a wire cable 59. Power closing device 5
Reference numeral 8 denotes a latch 5 when the slide door 2 moves in the closing direction.
When 0 is in the half-latch position, it is activated by a signal from the switch 56 to pull the wire cable 59,
The latch 50 is rotated from the half latch position to the full latch position, and the slide door 2 is completely closed. The structure of the power closing device 58 and the structure of the connection of the wire cable 59 to the latch 50 are not related to the direct gist of the present invention, and thus the details thereof are omitted. For example, Japanese Patent Application Laid-Open No. 7-177417 discloses the structure. And Japanese Patent Application Laid-Open No. 7-34743.
There is a configuration described in Japanese Unexamined Patent Publication (Kokai) No. H10-26095. In this specification, the position of the slide door 2 when the latch 50 is at the half-latch position and the full-latch position is similarly expressed as the half-latch position and the full-latch position.

As shown in FIG. 13, a terminal 81 connected to the power closing device 58 and the power opening device 57 provided inside the sliding door 2 is attached to the front end of the sliding door 2. The vehicle body 1 is provided with another terminal 82 connected to the battery 66 via the control unit 45. When the sliding door 2 moves in the closing direction, the terminal 81 contacts each other with the terminal 82 of the vehicle body 1 before the sliding door 2 reaches the half-latch position, and this contact causes the power closing device 58 and the power opening device 57 to contact each other. The power of the battery 66 is supplied. The signals from the various switches 56 and 64 provided in the sliding door 2 are also transmitted to the terminals 81 and 82.
Is sent to the control unit 45 via the.

FIG. 14 shows a block circuit of the present invention. 46 is an ammeter for the motor 7, 47 is a manual operation button for returning the clutch mechanism 15 from the connected state to the disconnected state, and 80 is a battery 66. The battery voltmeter 67 measures the power supply voltage BV of the battery 66. The battery voltmeter 67 converts the power supply voltage BV of the battery 66 to the motor voltage MV supplied to the motor 7, and is preferably a pulse width modulation circuit. Reference numeral 76 denotes a speed sensor for detecting the sliding speed SS of the sliding door 2. The sensor 76 may directly detect the movement of the sliding door 2;
It is practical to detect the rotation of the wire drum 9 which rotates in conjunction with the above.
The optical sensor disclosed in Japanese Patent No. 3358 can be exemplified. The optical sensor can detect the rotation amount (= the sliding amount of the sliding door), the rotation speed (= the sliding speed of the sliding door), and the rotating direction (= the moving direction of the sliding door 2) of the wire drum 8. Separate sensors for detecting the amount and direction of rotation can be dispensed with.

[0016]

(Unconnected state of the clutch mechanism 15) As shown in FIG. 4, the slide pins 30, 31 of the swing arms 26, 27 which are supported on the support plate 20 by the mounting shafts 28, 29 are both drums. When engaged with the inner slots 34, 35 of the guide plate 18 formed at a fixed distance from the shaft 12, the clutch claws 41, 42 of the swing arms 26, 27 are engaged.
Are separated from the projection 40 of the wire drum 8 and are disengaged. Thus, both clutch claws 41, 4
2 is apart from the convex portion 40 is a state in which the clutch mechanism 15 is not connected. In this state, even if the wire drum 8 rotates in any direction, the rotation is performed by the clutch claws 41 and 42 (motor 7). ), No extra resistance is applied when the slide door 2 is manually opened and closed (the rotation of the wire drum 8 is caused by the rotation of the guide plate 1).
8, it is difficult to manually open and close the slide door 2).

(Connection State of Clutch Mechanism 15) Switching of the clutch mechanism 15 to the connection state will be described. 4, when the motor 7 is rotated in the door closing direction, the guide plate 18 rotates clockwise (door closing rotation).
Then, since the rotation resistance is given to the support plate 20 by the elastic force of the spring 23, initially, the swing arms 26 and 27 attached to the support plate 20 do not move, but the swing arms 26 and 27 Only the slide pins 30 and 31 are
Guide slots 32, 3 of the rotating guide plate 18
3 relative to one slide pin 31
Enters the extension slot 37 from the inner slot 35 of the guide slot 33, and the other slide pin 30 moves only in the inner slot 34 about the drum shaft 12. Then, one slide pin 31 is extended slot 3
7 and is gradually separated from the drum shaft 12 by being guided by the inner wall 37A, whereby the swing arm 27 swings outward about the mounting shaft 29 in the direction of arrow A. Slide pin 31
From the extension slot 37 to the outer slot 39, the clutch pawl 42 of the swing arm 27 projects outward and enters the gap Y between the convex portions 40, and then the slide pin 31 It engages with the engagement surface 39A. During this time, since the slide pin 30 of the other swing arm 26 only moves in the inner slot 34 about the drum shaft 12, the swing arm 26 does not swing about the mounting shaft 28. Even after the slide pin 31 is engaged with the engagement surface 39A of the outer slot 39, if the guide plate 18 continues to rotate the door with the power of the motor 7, the engagement surface 39A pushes the slide pin 31. 7 rotates clockwise around the drum shaft 12 together with the support plate 20, and the coupling surface 42A of the clutch claw 42 engages with the projection 40 of the wire drum 8 as shown in FIG. Thus, the state where the coupling surface 42A of the clutch claw 42 is engaged with the projection 40 is the coupling state (first coupling state) of the clutch mechanism 15. The swing arm 27 is provided with the slide pin 3
Since 1 is engaged with the semicircular engagement surface 39A, it is not returned in the direction opposite to the arrow A. In the first connection state of FIG.
When the guide plate 18 further continues clockwise, the clutch pawl 42 pushes the convex portion 40 of the wire drum 8 to rotate the wire drum 8 clockwise, whereby the wire cable 9 wound around the wire drum 8 moves in the door closing direction. The door is taken up, and the sliding door 2 is slid in the closing direction.
In FIG. 4, when the motor 7 is rotated in the door opening direction and the guide plate 18 is rotated counterclockwise (door opening rotation), the coupling surface 41 of the clutch pawl 41 of another swing arm 26 is rotated.
When A is engaged with the convex portion 40, the clutch mechanism 15 is in another connected state (second connected state; see FIG. 11), and the sliding door 2 slides in the opening direction.

(Brake state of clutch mechanism 15) When the sliding door 2 is slid in the closing direction or the opening direction by the power of the motor 7, the clutch mechanism 15 is configured such that the coupling surface 42A of the clutch claw 42 40
Or the connecting surface 41A of another clutch claw 41 is in contact with the convex portion 4 of the wire drum 8.
0, and the power of the motor 7 is transmitted to the wire drum 8 so that the sliding door 2
Slides at a predetermined speed set by the motor 7 (and its speed reduction mechanism). However, even when the slide door 2 is slid by the power of the motor 7, if a strong external force acts on the slide door 2, the slide door 2 tends to slide at an overspeed exceeding the predetermined speed.
An example of such an external force is gravity acting on the sliding door 2 due to the inclination of the vehicle body 1. When such an external force acts on the slide door 2, the clutch mechanism 15 of the present embodiment switches to a brake state as described below, and prevents the slide door 2 from overspeeding. Hereinafter, switching of the clutch mechanism 15 to the brake state will be described. In the first connection state in which the sliding door 2 is slid in the closing direction (FIG. 7), when an external force causing an overspeed in the closing direction acts on the sliding door 2, the wire drum connected to the sliding door 2 via the wire cable 9. Reference numeral 8 rotates the door closer at a speed faster than the guide plate 18 which rotates in the door closing direction at a constant speed by the power of the motor 7. Then, another convex portion 40 located immediately before the clutch claw 42 is moved to the clutch claw 42 as shown in FIG.
Catches up to the back side of the abutment and abuts on the brake recess 42B, and the wire drum 8 closes at an overspeed (clock)
When rotated, the swing arm 27 (and the support plate 2)
0) is pushed by the wire drum 8 and rotates clockwise around the drum shaft 12 at the same overspeed as the wire drum 8, whereby the slide pin 31 of the swing arm 27 is pushed out from the engagement surface 39A. Even if the slide pin 31 is pushed out from the engagement surface 39A, the swing arm 27 does not swing in the direction opposite to the arrow A due to the engagement between the brake recess 42B of the swing arm 27 and another projection 40. When the wire drum 8 further rotates clockwise at the overspeed, the slide pin 31 moves in the outer slot 39 and comes into contact with the contact surface 39B of the outer slot 39 as shown in FIG. Even in this state, the swing of the swing arm 27 about the mounting shaft 29 in the direction opposite to the arrow A can be performed by another projection 40 and the brake recess 4.
Since the clutch claw 42 is still prevented by the engagement with 2B, the clutch claw 42 is continuously held in a state of protruding outward. In the state shown in FIG. 9, the external force causing overspeed is transmitted to the guide plate 18 via the wire drum 8 and the slide pin 31. However, since the guide plate 18 is connected to the motor 7 via the speed reduction mechanism and does not substantially rotate at a speed higher than a predetermined speed set by the motor 7 and the speed reduction mechanism,
A brake resistance by the guide plate 18 acts on the slide door 2, and thereafter, the slide door 2 slides at the predetermined speed. Thus, the state in which the convex portion 40 is engaged with the brake concave portion 42B and the overspeed of the wire drum 8 is regulated is the brake state (first brake state) of the clutch mechanism 15. Similarly, when the wire drum 8 rotates at an overspeed while the wire drum 8 is rotating counterclockwise, the convex portion 40 engages with the brake concave portion 41B of another swing arm 26. Thus, the sliding speed of the sliding door 2 is kept constant. This state is another brake state (second brake state) of the clutch mechanism 15. Therefore, according to the clutch mechanism 15 of the present embodiment, the overspeed of the slide door 2 is instantaneously prevented even if an external force causing the overspeed acts on the slide door 2. As described above, when the power slide device 5 is operating, the clutch mechanism 15 determines whether the connection surfaces 41A and 42A of the clutch claws 41 and 42 are in the connected state in which the connection surfaces 41A and 42A are in contact with the protrusions 40 of the wire drum 8 ( 7), or the brake state (see FIG. 9) in which the convex portion 40 abuts against the brake concave portions 41B and 42B.
Opens and closes at a constant speed.

(Return from Connected State to Disconnected State by Motor 7) The clutch mechanism 15 of the present invention once rotates the motor 7 in the reverse direction for a predetermined time (predetermined amount) R before stopping the motor 7. Thereby, it is configured to return from the connected state to the non-connected state. Hereinafter, the return of the clutch mechanism 15 from the connected state to the non-connected state will be described. When the guide plate 18 is rotated clockwise by the closing rotation of the motor 7 to be in the first connection state in FIG. 7, the motor 7 is once rotated reversely (door opening rotation).
Then, the guide plate 18 rotates counterclockwise, and the slide pin 31 of the swing arm 27 is pulled out from the engagement surface 39A of the outer slot 39 and abuts on the opposite abutment surface 39B, as shown in FIG. Become. In this state, since the brake concave portion 42B is not engaged with the convex portion 40, the swing arm 27 can swing in the direction indicated by the arrow A. Therefore, when the guide plate 18 further rotates counterclockwise, the slide pin 31 is guided from the contact surface 39B to the outer wall 37B and returned to the extension slot 37, the clutch pawl 42 is separated from the convex portion 40, and when the counterclockwise rotation of the guide plate 18 (motor 7) by the predetermined amount R ends. Then, the slide pin 31 is returned to the position shown in FIG. 4, and the clutch mechanism 15 returns to the non-coupled state. While the motor 7 is being rotated in the reverse direction (door opening rotation), a substantial load is not applied to the motor 7, so that the current value of the motor 7 measured by the ammeter 46 does not substantially change. Does not happen. When returning from the second connection state to the non-connection state, the same principle can be used.

(Return from brake state to non-connection state by motor 7) As described in the previous section, the clutch mechanism 1
The first connection state of 5 is such that the motor 7 guides the guide plate 1
By rotating counterclockwise 8 by a predetermined amount R,
The second connection state is released by clockwise rotating the guide plate 18 by the predetermined amount R by the motor 7, and the clutch mechanism 15 returns to the non-connection state, but releases the first brake state or the second brake state. In this case, as described below, each of the switches is switched to the first connection state or the second connection state by the power of the motor 7, and then the connection state is released to return to the non-connection state. Hereinafter, the return of the clutch mechanism 15 from the brake state to the non-connection state will be specifically described. Sliding door 2
When the slide door 2 is closed to the predetermined position while the external force of the overspeed is still applied to the clutch mechanism 15, as shown in FIG.
Is in the first brake state. At this time,
The control unit 45 does not distinguish whether the clutch mechanism 15 has closed the door in the first connection state or closed in the first brake state. Therefore, while monitoring the current value of the motor 7 measured by the ammeter 46, the control unit 45
Is started to reverse from the closed rotation to the open rotation by a predetermined amount R. At this time, if the clutch mechanism 15 is in the first connected state, the motor 7
The clutch mechanism 15 is returned to the uncoupled state by the opening rotation of the predetermined amount R, and during this time, the current value of the motor 7 does not substantially change. When the rotation of the motor 7 by the predetermined amount R is completed without changing the current value, the control unit 45
, The clutch mechanism 15 is considered to be in the first connected state, and the return control to the non-connected state ends. However, when the clutch mechanism 15 is in the first brake state (FIG. 9), when the guide plate 18 rotates counterclockwise due to the rotation of the motor 7 to open the door, the brake concave portion 42B is in contact with the convex portion 40. Immediately, a substantial load is applied to the motor 7, and the current value of the motor 7 increases. As described above, when the load on the motor 7 is detected before the opening rotation of the motor 7 by the predetermined amount R ends, the control unit 45 controls the clutch mechanism 1
5 is considered to be in the first braking state, and this time, the motor 7 is again reversed in the door closing direction. Then, in FIG.
Only the guide plate 18 rotates clockwise, and the engagement surface 39A of the outer slot 39 engages with the slide pin 31 as shown in FIG. Further, when the guide plate 18 rotates clockwise,
The swing arm 27 rotates clockwise around the drum shaft 12,
The coupling surface 42 </ b> A of the clutch pawl 42 comes into contact with the projection 40.
This state is the same as the first connection state in FIG. When the guide plate 18 further rotates clockwise from here, the motor 7
, A load for rotating the wire drum 8 is applied. When this second load is detected by the ammeter 46, the control unit 45 can determine that the clutch mechanism 15 has been switched from the first brake state to the first connection state. , The motor 7 is moved a predetermined amount R in the door opening direction.
Just flip again. Thereby, as described above, the first connection state returns to the non-connection state. The switching from the first brake state to the first connection state can also be performed by controlling the time during which the motor 7 rotates. The same principle is applied when returning the second brake state to the non-connection state.

(Return from Manual Brake State to Disconnected State) When returning the brake state and the connected state of the clutch mechanism 15 to the non-connected state, basically, the power of the motor 7 is used. If the motor 7 breaks down while the clutch mechanism 15 is in the brake state or the connection state, the brake state or the connection state is manually released. The manual return of the clutch mechanism 15 from the brake state to the disengaged state will be specifically described with reference to FIG. 9 showing the first brake state. In FIG. 9, since the slide pin 31 of the swing arm 27 is in contact with the contact surface 39 </ b> B of the outer slot 39, the wire drum 8 cannot be rotated clockwise (closed rotation) but counterclockwise rotated (door open). Rotation) is possible. Then, the sliding door 2 is manually slid in the opening direction, and the wire drum 8 is rotated counterclockwise. Then, the brake recess 42B
The protrusion 40 of the wire drum 8 that has been engaged with the first clutch comes off the brake recess 42B, and then another protrusion 40 contacts the connection surface 42A of the clutch claw 42 as shown in FIG. When the wire drum 8 is further rotated counterclockwise in the state of FIG. 10, the connecting surface 42 </ b> A
9, a force in the direction opposite to arrow A acts on the swing arm 27 by contact with the convex portion 40.
In addition, since the interval between the outer ends of the extension slots 37 is considerably wide, the swing arm 27 swings around the mounting shaft 29 in the direction opposite to the arrow A, and the clutch pawls 42
When the clutch mechanism 15 is returned to a position where it is not engaged, the clutch mechanism 15 is returned from the first brake state to the uncoupled state. FIG. 12 shows this state. The same applies to the release of the second brake state.

(Manual Return from the Connected State to the Disconnected State) The manual return of the clutch mechanism 15 from the connected state to the disconnected state will be described with reference to FIG. 7 showing the first connected state. In FIG. 7, the slide pin 31 is
Since the wire drum 8 is engaged with the engagement surface 39 </ b> A of the wire 9, the wire drum 8 cannot rotate counterclockwise (door rotation), but can rotate clockwise (door rotation). Then, the sliding door 2 is manually slid in the closing direction, and the wire drum 8 is rotated clockwise. Then, the protrusion 40 that has been in contact with the connection surface 42A is separated from the connection surface 42A, and then another protrusion 4
0 comes into contact with the brake concave portion 42B of the clutch claw 42, and the state shown in FIG. When the wire drum 8 is further rotated clockwise in the state of FIG. 8, the swing arm 27 rotates clockwise about the drum shaft 12 by the contact between the projection 40 and the brake recess 42B, and the first brake shown in FIG. State. In the first brake state, the slide pin 31 of the swing arm 27
Abuts against the contact surface 39B of the outer slot 39, so that the slide door 2 is heavy and does not move. Therefore, when the slide door 2 becomes heavy, the slide door 2 is manually slid in the opening direction, and thereafter, when the same operation as the release of the first brake state is performed, the clutch mechanism 15 is disengaged. Return. The release of the second connection state is based on the same principle. Thus, in the manual release from the connection state to the non-connection state, the slide door 2 is manually slid. At this time, the slide amount S of the slide door 2 required for the release is required.
Is equal to “the gap Y between the convex portions 40” − “the width Z of the clutch pawl 42” + “the moving distance T of the slide pin 31 that can move in the outer slot 39”. The slide amount S becomes important in relation to the holding of the slide door 2 at the fully open position by the power slide device 5 described later.

(Sliding door 2 with fully open stopper 60)
When the sliding door 2 is moved to a predetermined position in the opening direction by bringing the clutch mechanism 15 into the second connected state by the rotation of the motor 7 to open the door, the sliding door 2 comes into contact with the fully open stopper 60, Further, when the slide door 2 is moved, the slide door 2 moves over the fully opened stopper 60 while elastically deforming the stopper 60 and moves to the fully opened position. When the slide door 2 moves to the fully open position, the control unit 45 reverses the rotation of the motor 7 by a predetermined amount R to return the clutch mechanism 15 to the non-coupled state. After the sliding door 2 is moved to the fully open position in this manner, the sliding door 2 is held at the fully open position by the fully opened stopper 60 that has been elastically restored.

(Slide Door 2 by Power Slide Device 5)
The fully open stopper 60 holds the slide door 2 at the fully open position by using the elasticity of a leaf spring or the like. Therefore, the holding force is not so strong. If the vehicle body 1 is tilted forward by more than about 10%, the sliding door 2 may ride over the full-open stopper 60 due to gravity and slide in the closing direction (forward direction). However, in the present invention, the slide door 2 can be reliably held at the fully open position even on such a slope. First, when the motor 7 opens the clutch mechanism 15 in the second connection state and moves the slide door 2 to a predetermined position in the opening direction on the inclined ground as described above, the slide door 2 hits the full-open stopper 60. When the slide door 2 is moved further, the slide door 2 moves over the stopper 60 while elastically deforming the stopper 60 and moves to the fully open position. During this time, there is no special effect due to the inclination, and a strong external force acting on the sliding door 2 in the closing direction only causes a strong load on the motor 7 rotating in the opening direction. When the sliding door 2 is displaced to the fully open position, the control unit 45 reverses the motor 7 in the closing direction by a predetermined amount R in order to return the clutch mechanism 15 to the disengaged state. Since a strong external force acts on the clutch mechanism 15, the clutch mechanism 15 does not return to the non-coupled state. That is, when the sliding door 2 is displaced to the fully open position, the clutch mechanism 15 is in the second connection state shown in FIG. 11, but in this state, the clutch mechanism 15 is affected by an external force acting on the sliding door 2 in the closing direction. An external force acting in the clockwise direction acts on the wire drum 8. Therefore, when the motor 7 is rotated in the closing direction by a predetermined amount R in the state shown in FIG. 8 also rotates clockwise following the external force, the slide pin 30 cannot be separated from the engagement surface 38A, and even after the motor 7 completes the predetermined amount R of closing the door, the clutch mechanism 15 is rotated.
Are maintained in the second connected state of FIG. This is the same in the second embodiment including the fall prevention springs 68 and 69. However, in this second connection state, the wire drum 8
Is transmitted to the guide plate 18 by the engagement between the slide pin 30 and the engagement surface 38A, so that the rotation of the wire drum 8 to close the door is practically impossible. Even when a strong external force is applied to the sliding door 2 in the closing direction, the sliding door 2 is securely held at the fully opened position. The distance D in which the sliding door 2 slides in the closing direction by the predetermined amount R of the motor 7 closing the door is set shorter than the width X of the fully open position, and the sliding door 2 is closed by the predetermined amount R of the motor 7 closing the door. When the slide door 2 slides following the direction, the slide door 2 is prevented from strongly contacting the full-open stopper 60 (preferably not at all). If the sliding door 2 comes into strong contact with the full-open stopper 60 due to the following sliding of the sliding door 2, the external force acting on the sliding door 2 in the closing direction is substantially attenuated. Therefore, the second connection state shown in FIG. 11 may be changed to an incomplete state, and the slide door 2 cannot be held at the fully open position. When the sliding door 2 is manually closed from the state shown in FIG. 11, the same operation as in the manual release of the above-described connected state is performed to return the clutch mechanism 15 to the non-connected state, and then the sliding door 2 is closed. Slide in the direction. For this purpose, it is necessary to slide the wire drum 8 (slide door 2) in the door opening direction by the slide amount S in the state of FIG.
The slide amount S is set shorter than the distance D over which the slide door 2 slides in the door closing direction by the predetermined amount R of the motor 7 closing the door. Thereby, even if the motor 7 fails in the state of FIG. 11, the slide door 2 can be manually closed.

(Complete door closing by power closing device 58)
When the motor 7 of the power sliding device 5 closes and the sliding door 2 slides in the closing direction and the terminal 81 of the sliding door 2 comes into contact with the terminal 82 of the vehicle body 1, the power closing device 58 provided in the sliding door 2. When power is supplied to the battery 66 through the contact of the terminals 81 and 82, the power closing device 58 is in an operable state, and when the sliding door 2 is further slid in the closing direction,
The latch 5 of the latch assembly 4 is rotated by the engagement with the striker 3 to be in the half latch position. Then, the switch 56 detects this, and the control unit 45 terminates the rotation of the motor 7 to close the door and performs return control for returning the clutch mechanism 15 to the non-coupled state. When the terminal 81 of the sliding door 2 comes into contact with the terminal 82 of the vehicle body 1, even if the clutch mechanism 15 is switched to the first brake state due to the inclination of the vehicle body 1 or the like, the terminal 81, 82 comes into contact with each other from the contact position. In the section up to the half-latch position, the slide resistance increases due to the resistance of the waterproof rubber seal or the like, and when the slide door 2 reaches the half-latch position, the clutch mechanism 15 returns from the first brake state to the first connection state. Have been. When the switch 56 detects the half-latch position, the control unit 45 operates the power closing device 58 to move the half-latch position latch 50 to the full-latch position in parallel with the return control of the clutch mechanism 15 to the non-engaged state. When the switch 56 detects the full latch position, the operation of the power closing device 58 is stopped, and the motor 7 of the power sliding device 5 is again turned on for a predetermined time or the ammeter 46 is turned on. The clutch mechanism 15 is rotated to the second connection state (see FIG. 11) by rotating the door open until a load is detected, and the control unit 45 ends the control of the motor 7. Thus, when the slide door 2 is completely closed, the clutch mechanism 15 is brought into the second connection state for the door opening operation. Slide door 2 from this state
When the open handle 63 is opened, the ratchet 51 is disengaged from the latch 50, and the slide door 2 is pushed out in the opening direction by the elasticity of a rubber seal provided between the slide door 2 and the vehicle body 1.
Is detected by the switch 64, the controller 45 rotates the motor 7 of the power slide device 5 to open the door, and slides the slide door 2 in the door opening direction. At this time, even if the vehicle body 1 is on an inclined ground and a strong external force is applied to the sliding door 2 in the opening direction simultaneously with the opening of the door, the second door opening operation is performed in advance when the clutch mechanism 15 is completely closed.
Since the clutch mechanism 15 is instantaneously switched to the second brake state due to the overspeed of the wire drum 8 in the door opening direction in the connected state, the sliding door 2
The slide at the over speed of is prevented instantaneously. When the manual operation button 47 is pressed in the door closed state, the motor 7 closes the door by a predetermined amount to rotate the clutch mechanism 15.
Is returned to the unconnected state. In the above description, the clutch mechanism 15 is switched to the second connection state when the slide door 2 is in the fully latched state. However, the switching to the second connection state can be changed after the door opening operation. is there.
In this case, until immediately before the door opening operation is performed, the clutch mechanism 15 is kept in the non-connected state, and when the opening operation of the open handle 63 is detected by the switch 64, the clutch mechanism 15 is first switched to the second connected state, and thereafter Then, the ratchet 51 is released from the latch 50 by the power opening device 57, and then the power sliding device 5 is operated to slide the sliding door 2 in the door opening direction. Even if such a change is made, sliding of the sliding door 2 at an overspeed when the door is opened is well prevented.

(Safety Control of Control Unit 45) The control unit 45
Safety control including abnormality detection control for detecting an abnormal slide of the slide door 2 and quality improvement control for controlling the slide speed to improve the quality and durability of parts is executed. First, regarding the safety control in closing the door, the time chart of FIG.
This will be described with reference to the flowchart of FIG. When the sliding door 2 is closed and slid by the motor 7, first, the power supply voltage B of the battery 66 is measured by the battery voltmeter 80.
V is measured (S001), and the power supply voltage BV is
, The voltage is reduced to a start voltage (about 7 V), supplied to the motor 7 as the motor voltage MV, the motor 7 is closed, and the timer T1 is started (S002). The timer T1 is set to a short time of about 0.15 seconds, and the timer T1
Is increased (S004), the motor voltage MV is slightly increased (about 2 volts or until the transformation stops within 2 volts) (S005). At this time, when the voltage reduction by the transformer circuit 67 is continued (S006). ) And restart timer T1 again (S
007), after 0.15 seconds, the motor voltage MV is increased again (S005). This is repeated until the step-down by the transformer circuit 67 stops. As a result, the sliding door 2 becomes approximately 7
The slide starts slowly with a low start voltage of volts, and then gradually accelerates as the motor voltage MV is increased, so that the load applied to the slide door 2 and the power slide device 5 at the start can be moderated. Transformer circuit 6
For a while, even after the completion of the voltage transformation by step 7, the sliding speed SS of the slide door 2 becomes unstable due to the influence of the previous voltage transformation. When the timer T2 is up and the slide speed SS of the slide door 2 is stabilized (S008, S011), the slide speed SS measured at this time is stored (S013) as a reference slide speed RS (S015). Sliding door 2
However, when the sliding starts in the closing direction immediately before the closing position, the terminal 81 of the sliding door 2 contacts the terminal 82 of the vehicle body 1 by a distance of about 10 cm within a short time after the motor 7 is rotated. The sliding door 2 may reach the closed door deceleration position CP set at a position shifted in the opening direction (S003, S009). In this case, the control of the control unit 45 proceeds to Step S031 in FIG. Then, the sliding speed SS of the sliding door 2
Is the strength of the power supply voltage BV and the slide resistance acting on the slide door 2 (mechanical frictional resistance between the slide door 2 and the vehicle body 1 + the external force acting on the slide door 2 due to the inclination of the vehicle body 1 and the like). , The slide speed SS is high when the power supply voltage BV is high, and the slide speed SS is low when the slide resistance is high. Here, the magnitude of the mechanical frictional resistance is large near the fully open position and the vicinity of the door closing position, and becomes low at an intermediate position between them, but the frictional resistance at each position can be regarded as a fixed value. In addition, the slide speed SS and the power supply voltage BV are those whose actual speed and magnitude are respectively measured. Therefore, by measuring or storing these factors, the magnitude of the external force acting on the slide door 2 in the deceleration direction at that time can be obtained. Further, if the strength of the external force is assumed in advance, the slide speed SS according to the strength of the power supply voltage BV can be assumed. Note that the slide speed SS indicated by a solid line in FIG. 15 is assumed when the power supply voltage BV is an average voltage and the vehicle body 1 is on a flat ground and no external force acts on the slide door 2. Speed. Therefore, under the condition that the external force acting on the slide door 2 in the deceleration direction acting on the slide door 2 is maximized, the control unit 45 sets the slide speed assumed when the timer T2 is up as the expected minimum speed ES. The planned minimum speed ES changes according to the strength of the power supply voltage BV, as indicated by the dotted line in FIG. Thus, when it is determined that the timer T2 is up and the slide speed SS can be considered to be in a stable state (S011), the control unit 45 sets the slide speed SS at that time to:
Compared with the planned minimum speed ES according to the power supply voltage BV strength
(S017) When the slide speed SS has not reached the planned minimum speed ES, it is considered that the slide door 2 could not be accelerated in the normal range because an external force greater than the assumed maximum external force acted on the slide door 2. And for this,
The control unit 45 determines that an abnormal slide has occurred in the slide door 2, and stops or reverses the motor 7 (S045). As described above, the control unit 45 uses the measured power supply voltage BV.
Performs the abnormality detection control at the start of sliding of the slide door 2, so that accurate abnormality detection can be performed regardless of the voltage level of the battery 66. Since the motor voltage MV fluctuates significantly depending on the load applied to the motor 7 and the magnitude of the circuit resistance from the motor 7 to the battery 66, the power supply voltage B
It is difficult to perform abnormality detection control using the motor voltage MV instead of V. If no abnormal slide is recognized at the time when the timer T2 is up (S017), the motor 7 is closed and rotated by the normal motor voltage MV which is not transformed, and the slide door 2 is moved. The slide speed SS is monitored (S021) and compared with the reference slide speed RS (S023). If the slide speed SS becomes slower than the reference slide speed RS by more than a predetermined deceleration width, an abnormal slide occurs. Assume that
(S025). Here, the predetermined deceleration width is equal to the reference slide speed R.
The speed is changed according to the speed of S, and is decreased when the reference slide speed RS is fast, and increased when the reference slide speed RS is slow.
The predetermined deceleration width at the time of "0" is set to "5", and when the slide speed SS becomes less than "95", it is regarded as abnormal.
When the reference slide speed RS is relatively slow “80”, the predetermined deceleration width is “10”, and the slide speed SS is “7”.
When it is less than "0", it is regarded as abnormal. As described above, when the predetermined deceleration width is changed in accordance with the speed of the reference slide speed RS, more accurate abnormal slide detection can be performed. That is,
When a predetermined load is applied to the motor 7 when a hand or luggage is sandwiched between the slide doors 2 and the predetermined load is applied to the motor 7, the slide speed decreases when the slide speed is high because the inertia of the slide door 2 is large, and when the slide speed is low. However, in the present invention, when the reference slide speed RS is high, the reference of the abnormal slide becomes strict, so that even a slight abnormality can be immediately detected, and the moving amount of the slide door 2 at the time of the abnormality is high. Is minimized, and when the reference slide speed RS is low, the reference of the abnormal slide is loosened, so that erroneous detection of deceleration in the normal range can be suppressed. If no abnormal sliding is found in step S025, the position of the sliding door 2 is checked, and if the door has not reached the closed door deceleration position CP (S027), step S02 is performed.
Return to step 1 and continue the slide. When the slide speed SS becomes faster than the reference slide speed RS in step S023, it means that an external force in the acceleration direction has acted on the slide door 2, but the clutch mechanism 15 disclosed in the present embodiment operates in the brake state. Since the external force for accelerating the slide door 2 (overspeed) is immediately absorbed as described above, no special processing is required, and the step S029 shown in the broken line is ignored, and the step S02 is not performed.
Control flows to 7. However, Japanese Patent Application Laid-open No. Hei 9
When a clutch mechanism having no braking state is used, such as the clutch mechanism described in JP-A-273358 and other known clutch mechanisms, the reference slide speed RS is applied to the external force acting on the slide door 2 in the acceleration direction. Is updated to the faster slide speed SS (S029). In step S027, the sliding door 2 is moved to the closed door deceleration position CP.
Is reached, the control unit 45 reduces the motor voltage MV to the minimum voltage by the
Is decelerated (S031). The motor 7 generates the minimum power required to move the sliding door 2 from the closed-door deceleration position CP to the half-latch position by the minimum voltage. The minimum power is the power that can withstand the slide resistance composed of the maximum mechanical friction resistance in this section and the external force in the deceleration direction required until the slide door 2 reaches the closed door deceleration position CP. Therefore, the minimum voltage is changed according to the magnitude of the external force in the deceleration direction. Note that the mechanical friction resistance in this section gradually increases from the closed door deceleration position CP to the half latch position, and becomes maximum at the moment when the slide door 2 reaches the half latch position. Therefore, at the moment when the slide door 2 is at the half-latch position, the minimum power is almost completely consumed by the slide resistance, the power margin of the motor 7 is minimized, and the slide speed of the slide door 2 is extremely high. Slow down. It should be noted here that the minimum voltage is changed according to the magnitude of the external force acting on the slide door 2 in the deceleration direction, so that the margin left for the power of the motor 7 regardless of the magnitude of the external force in the deceleration direction. Therefore, the extremely low speed also becomes constant irrespective of the magnitude of the external force in the deceleration direction. As described above, in the present invention, since the slide speed SS of the slide door 2 is reduced when the slide door 2 reaches the half-latch position, safety in a place where abnormal slide is likely to occur is improved, and the latch 50 is engaged with the striker 3. The generation of abnormal noise at the time of joining can be reduced, and the door can be closed extremely quietly. Even if the sliding speed SS of the sliding door 2 is reduced when the sliding door 2 reaches the half latch position, the minimum sliding speed is secured when the sliding door 2 reaches the half latch position regardless of the magnitude of the external force in the deceleration direction. Therefore, the slide door 2 can be reliably moved to the half latch position. Thus, when the motor voltage MV is reduced to the minimum voltage (S031), the motor voltage MV is first reduced by the power reduction of the motor 7 due to the reduced voltage, and then reduced with an increase in the mechanical frictional resistance. 82
They come into contact with each other (S037). During this time, the measured slide speed SS (S033) is equal to the half-latch moving speed H.
When the speed is lower than the half-latch moving speed HS as compared with S, the control unit 45 determines that an abnormal slide has occurred on the slide door 2 (S035). The mechanical frictional resistance at the point where the terminals 81 and 82 come into contact with each other is smaller than the mechanical frictional resistance at the half-latch position by the resistance α, and this resistance α is a value assumed in advance. Even when the minimum voltage is supplied, the motor 7 has a margin by the resistance α at the terminal contact position.
The half-latch moving speed HS is set to a speed provided by a margin of the resistance α or a speed slightly higher than this. After the terminals 81 and 82 come into contact with each other (S037), the mechanical friction resistance becomes extremely large due to the waterproof rubber seal of the slide door 2 and the like, so that the slide door 2 further decelerates to the extremely low speed. For this reason, thereafter, when the measured slide speed SS (S039) becomes zero, the control unit 45 regards that the slide door 2 has caused an abnormal slide (S041). The position is reached (S043), and the control ends. Step S0
In 03 or S009, when the sliding door 2 reaches the closed door deceleration position CP before the timer T1 or the timer T2 is up, this means that the sliding door 2 has been slid in the closing direction from just before the closing position. in case of,
In step S031, the motor voltage MV is reduced. At this stage, since the stable slide speed SS obtained from the measured power supply voltage BV has not been obtained, the magnitude of the external force acting on the slide door 2 is reduced. It cannot be determined. Therefore, in consideration of safety of control, no external force acts on the sliding door 2, that is,
Assuming that the vehicle body 1 is on a flat ground, the motor voltage MV is reduced.

Next, the safety control when the door is opened will be described with reference to the time chart of FIG. 16 and the flowcharts of FIGS. When the sliding door 2 is opened and slid by the motor 7, first, the power supply voltage BV of the battery 66 is measured by the battery voltmeter 80 (S
101) Then, the power supply voltage BV is reduced to the start voltage (approximately 7 V) by the transformer circuit 67, and supplied to the motor 7 as the motor voltage MV, the motor 7 is opened and the timer T3 is started (S102). . The timer T3 is set to a short time of about 0.15 seconds, and when the timer T3 is up (S104), the motor voltage MV is slightly increased (until the transformation stops within about 2 volts or 2 volts) (S105). ,
At this time, if the voltage drop by the transformer circuit 67 continues,
(S106), the timer T3 is started again (S107), and 0.
After 15 seconds have elapsed, the motor voltage MV is increased again (S10
Five). This is repeated until the step-down by the transformer circuit 67 stops. As a result, the slide door 2 starts sliding slowly with a low start voltage of about 7 volts, and then gradually accelerates as the motor voltage MV is increased, so that the slide door 2 and the power slide device 5 start moving. The load at the time can be moderated. For a while even after the voltage transformation by the voltage transformation circuit 67 is completed, the sliding speed SS of the slide door 2 becomes unstable due to the influence of the voltage transformation up to that time. A period is set (S108, S111), and when the timer T4 is up and the slide speed SS of the slide door 2 is stabilized, the slide speed SS measured at this time is stored as a reference slide speed RS (S113). When the sliding door 2 starts sliding in the opening direction from just before the fully open position, the fully open stopper 6
The sliding door 2 may reach the door opening deceleration position OP set at a position shifted in the door closing direction by about 10 cm from the point where 0 is installed (S103, S109). In this case, the control of the control unit 45 proceeds to Step S131 in FIG. Thus, under the condition that the external force acting on the slide door 2 in the deceleration direction is maximized, the control unit 45 sets the timer T4 to U
Slide speed assumed when P
Set as S. The planned minimum speed ES changes according to the strength of the power supply voltage BV, as indicated by a dotted line in FIG. When the timer T4 is up and the slide speed SS can be considered to be in a stable state (S111), the control unit 45 sets the slide speed SS at that time.
Is compared with the planned minimum speed ES according to the strength of the power supply voltage BV (S117). When the slide speed SS does not reach the planned minimum speed ES, an external force larger than the assumed maximum external force is applied to the slide door 2. By acting, it can be considered that the sliding door 2 could not be accelerated in the normal range. Therefore, the control unit 45 determines that abnormal sliding has occurred on the sliding door 2 and stops the motor 7 (S145). ). Timer T
If no abnormal slide is recognized at the time point when UP is performed (S117), the motor 7 is closed and rotated by the normal motor voltage MV which is not transformed, and the slide door 2 is rotated.
, And during this time, the slide speed SS
Is monitored (S121), and this is compared with the reference slide speed RS.
(S123) When the slide speed SS becomes slower than the reference slide speed RS by more than a predetermined deceleration width, it is considered that an abnormal slide has occurred (S025). The setting of the predetermined deceleration width is the same as the safety control in closing the door. If no abnormal sliding is found in step S125, the position of the sliding door 2 is checked, and if the sliding door 2 has not reached the door opening deceleration position OP (S12).
7) Return to step S121 to continue the slide. When the slide speed SS becomes faster than the reference slide speed RS in step S123, it means that an external force in the acceleration direction has acted on the slide door 2, but the clutch mechanism 15 disclosed in the present embodiment operates in the brake state. And accelerate the sliding door 2 as described above (overspeed)
Since the external force to be absorbed is immediately absorbed, no special processing is required, and the process directly proceeds to step S127 ignoring step S129 shown in the broken line. However, when a clutch mechanism having no braking state is used, the reference slide speed RS is updated to the slide speed SS that is increased by the external force acting on the slide door 2 in the acceleration direction.
(S129). In step S127, when the slide door 2 reaches the door opening deceleration position OP, the control unit 45 reduces the motor voltage MV to the minimum voltage by the transformer circuit 67 to reduce the slide speed SS (S131). With the minimum voltage, the motor 7 generates the minimum power required to move the slide door 2 from the door opening deceleration position OP to the fully open position by moving over the fully open stopper 60. Therefore, the sliding door 2
Is the fully open stopper 6 regardless of the magnitude of the slide resistance.
When the vehicle crosses zero (when the slide resistance is maximized), the speed becomes extremely low and the vehicle reaches the fully open position. As described above, in the present invention, since the slide speed SS of the slide door 2 is reduced when the slide door 2 reaches the fully open position, the texture when the vehicle slides over the fully open stopper 60 is improved, and the slide door 2 hits the end of the fully open position. Since the shock at the time is weakened, the generation of abnormal noise can be reduced, the door can be opened extremely quietly, and the load on the striking part is reduced, so that the durability is improved. When the slide speed 2 reaches zero at the end of the fully opened position and the slide speed SS becomes zero (S133), the control ends. Step S103
Or, in S109, before the timer T3 or the timer T4 is up, the sliding door 2 is moved to the opening deceleration position OP.
Is reached, it means that the slide door 2 has been slid in the opening direction from just before the fully open position. In this case, the process proceeds to step S131 to decrease the motor voltage MV. Since the stable slide speed SS obtained from the measured power supply voltage BV is not obtained, the magnitude of the external force acting on the slide door 2 cannot be determined. In such a case, make sure that the sliding door 2
The external force that could not be determined is regarded as the maximum value, and the motor voltage MV is reduced so that can be moved to the fully open position.

[0028]

As described above, according to the present invention, the wire drum 8 connected to the slide door 2 which opens and closes by sliding with respect to the vehicle body 1 via the wire cable 9 and the wire drum 8 is rotated. Motor 7, a battery 66 serving as a power supply for the motor 7, a sensor 76 for detecting a sliding speed SS of the sliding door 2, and a voltage converting circuit 67 provided between the battery 66 and the motor 7. And the control unit 45 which controls the entire control.
In the safety control method of the power sliding device for a vehicle sliding door, the control unit 45 includes: a closing speed reducing unit that sets the sliding door 2 to a desired position before the half-latch position by the closing rotation of the motor 7. When displaced to CP, the motor voltage MV supplied to the motor 7 is
Since the sliding door 2 is changed to the minimum voltage necessary for moving the sliding door 2 from the closed-door deceleration position CP to the half-latch position by using the transformer circuit 67, the sliding speed SS of the sliding door 2 is changed. Is decelerated when it reaches the half-latch position, improving safety near the half-latch position where abnormal sliding is likely to occur, and
The generation of abnormal noise when the latch 50 is engaged with the striker 3 can be reduced, and an extremely quiet door can be closed. Even if the sliding speed SS of the sliding door 2 is reduced when the sliding door 2 reaches the half latch position, the minimum sliding speed is secured when the sliding door 2 reaches the half latch position regardless of the magnitude of the external force in the deceleration direction. Therefore, the slide door 2 can be reliably moved to the half latch position. The present invention also provides a wire drum 8 connected to a slide door 2 that opens and closes by sliding with respect to the vehicle body 1 via a wire cable 9, a motor 7 for rotating the wire drum 8, A battery 66 serving as a power supply for the motor 7, a sensor 76 for detecting the sliding speed SS of the sliding door 2, a voltage transforming circuit 67 provided between the battery 66 and the motor 7, and a control for controlling the entire system In a safety control method for a power sliding device for a vehicle sliding door provided with a part 45, the control part 45 includes:
When the sliding door 2 is displaced by the opening rotation of the motor 7 to a door opening deceleration position OP set at a desired position before the full-open stopper 60, the motor voltage MV supplied to the motor 7 is changed to the voltage converting circuit 67. The safety control method is such that the sliding door 2 overcomes the resistance of the fully-open stopper 60 and changes the voltage to the minimum voltage required to move to the fully-open position, so that when the sliding door 2 reaches the fully-open stopper 60, Regardless of the strength of the power supply voltage BV, the slide speed becomes a substantially constant low-speed full-open position movement speed ZS, and thereby the low-speed full-open stopper 6 moves.
0, the texture is improved and the sliding door 2
Can reduce the impact when it hits the end of the fully open position, so that the generation of abnormal noise can be suppressed, and the load on the hitting part is reduced, so that the durability is improved.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle provided with a sliding door.

FIG. 2 is a cutaway view of a latch assembly.

FIG. 3 is a vertical sectional side view of a power slide device including the clutch mechanism of the first embodiment.

FIG. 4 is a vertical sectional front view of the power slide device.

FIG. 5 is a front view of a guide plate of the clutch mechanism.

FIG. 6 is a front view of a swing arm of the clutch mechanism.

FIG. 7 is a cross-sectional view when the clutch mechanism is in a connected state (first connected state).

FIG. 8 is a cross-sectional view showing a state in which the wire drum has rotated at an overspeed from the first connection state in FIG. 7 and the convex portion has engaged with the brake concave portion.

9 is a cross-sectional view showing a state in which the wire drum rotates at an overspeed from the state of FIG. 8 and the slide pin comes into contact with the contact surface.

10 is a sectional view showing a state in which the wire drum is manually rotated counterclockwise from the state shown in FIG.

FIG. 11 is a sectional view showing a second connection state of the clutch mechanism.

FIG. 12 is a sectional view showing a state where the clutch mechanism is manually returned from a brake state to a non-connection state.

FIG. 13 is a schematic diagram showing a terminal.

FIG. 14 is a block circuit diagram of the present invention.

FIG. 15 is a time chart showing a sliding speed when the door is closed.

FIG. 16 is a time chart showing a sliding speed when the door is opened.

FIG. 17 is a flowchart showing safety control when the door is closed.

FIG. 18 is a flowchart showing safety control when the door is closed.

FIG. 19 is a flowchart showing safety control when the door is closed.

FIG. 20 is a flowchart showing safety control when the door is opened.

FIG. 21 is a flowchart showing a half of safety control when the door is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Slide door, 3 ... Striker, 4 ... Latch assembly, 5 ... Power slide device, 6 ... Quarter panel, 7 ... Motor, 8 ... Wire drum, 9 ... Wire cable, 10 ... Base plate, 11 ... Cover Plate, 12: drum shaft, 13: wire groove, 14: internal space, 15: clutch mechanism, 16: drive gear, 17: connecting pin, 18: guide plate, 19: spring support, 20
... support plate, 21 ... annular flange, 22 ... pan, 2
3 ... spring, 24, 25 ... boss part, 26, 27 ... swing arm, 28, 29 ... mounting shaft, 30, 31 ... slide pin,
32, 33 ... guide slot, 34, 35 ... inner slot, 36, 37 ... extension slot, 36A, 37A ... inner wall, 36B, 37B ... outer wall, 38, 39 ... outer slot, 38A, 39A ... engagement surface, 38B, 39B: contact surface, 40: convex portion, 41, 42: clutch pawl, 41A, 4
2A: Connection surface, 41B, 42B: Brake recess, 45:
Control unit, 46: ammeter, 47: manual operation button, 50:
Latch, 51 ... Ratchet, 52, 53 ... Spring, 54 ...
Half latch step, 55 ... Full latch step, 56 ... Switch, 57 ... Power open device, 58 ... Power close device, 59 ... Wire cable, 60 ... Fully open stopper,
61 ... case, 63 ... open handle, 64 ... switch, 65 ... guide rail, 66 ... battery, 67 ... transformer circuit, 76 ... speed sensor, 80 ... battery voltmeter, 81, 82 ... terminal.

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[Procedure amendment]

[Submission date] June 22, 1999 (1999.6.2
2)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG.

 ──────────────────────────────────────────────────続 き Continued on the front page F-term (reference) 2E052 AA09 CA06 DA01 DA03 DA08 DB01 DB03 DB08 EA15 EB01 EC01 GA06 GA08 GB06 GB12 GB15 GC06 GD03 GD09 HA01 KA01 KA02 KA06 KA13 KA15 KA16 LA09 5H530 AA01 BB18 CD19 CD12 CD12 CD19 CD34 CD36 CF03 CF08 CF15 DD05 DD19 DD21

Claims (2)

[Claims] 1. A wire drum 8 connected via a wire cable 9 to a slide door 2 which opens and closes by sliding with respect to a vehicle body 1, a motor 7 for rotating the wire drum 8, and the motor A battery 66 serving as a power source for the sliding door 7, a sensor 76 for detecting a sliding speed SS of the sliding door 2,
A transformer circuit 67 provided between the motor 6 and the motor 7;
In a safety control method for a power sliding device for a vehicle sliding door including a control unit 45 that controls the entire control, the control unit 45 may control the sliding door 2 to a desired position before the half latch position by the closing rotation of the motor 7. When the sliding door 2 is displaced from the closed door deceleration position CP to the half-latch position by using the transformation circuit 67, the sliding door 2 is moved to the half-latch position by the motor voltage MV supplied to the motor 7 after the displacement to the closed door deceleration position CP determined at the position. Safety control method that converts the voltage to the minimum voltage required for 2. A wire drum 8 connected via a wire cable 9 to a slide door 2 which opens and closes by sliding with respect to a vehicle body 1, a motor 7 for rotating the wire drum 8, and the motor A battery 66 serving as a power source for the sliding door 7, a sensor 76 for detecting a sliding speed SS of the sliding door 2,
A transformer circuit 67 provided between the motor 6 and the motor 7;
In the safety control method of the power sliding device for a vehicle slide door including a control unit 45 that controls the entire control, the control unit 45 controls the slide door 2 to be positioned before the fully-open stopper 60 by the rotation of the motor 7 to open the door. When the sliding door 2 is displaced to the open door deceleration position OP set to the desired position and the motor voltage MV supplied to the motor 7 is overcome by using the transformer circuit 67, the sliding door 2 overcomes the resistance of the fully open stopper 60 and the fully open position is reached. A safety control method that transforms the voltage to the minimum voltage required to move to