JP2003129749A - Controlling method of power sliding device for vehicle sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a controlling method capable of miniaturizing a power sliding device. SOLUTION: The controlling method of the power sliding device for a vehicle sliding door is so constituted that a sliding door 11 is slidingly closed by power of a motor 14 of the power sliding device 10, the sliding door 11 reaches a take-over point before it arrives at a half-latch position, a latch 26 of the sliding door 11 is initially engaged with a striker 24, and when a latch switch 31 is turned ON, a closing door slide of the sliding door 11 is stopped by the motor 14, at the same time, an electromagnetic brake 17 is operated to constrain a sliding movement of the sliding door 11, a power closing device 32 for rotating the latch 26 in the direction of full latch is started by turning the latch switch 31 ON and that the constraint of the sliding door 11 by the electromagnetic brake 17 is released when a predetermined time elapses.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for controlling a power slide device for a vehicle slide door, and more particularly to a control method which enables downsizing of the power slide device.

[0002]

2. Description of the Related Art Conventionally, a power slide device for a vehicle slide door is known, in which a wire drum connected to a slide door via a wire cable is rotated by the power of a motor to slide the slide door in a closing direction and an opening direction. Is. A power closing device is also known in which, when the sliding door moves to a predetermined position in the closing direction, the latch engaged with the striker is rotated in the full latch direction by the motor power to bring the sliding door into the fully latched state (completely closed state). A combination of a power closing device and a power sliding device is also known. With a combination of both devices, the sliding door is closed from the open position to the half-latch position with the sliding device, and from the half-latch position to the full-latch position with the closing device. The sliding door moved by the device can be surely taken over by the closing device. In other words, if the sliding door is set to the half-latch state, the sliding door does not return to the opening direction thereafter, so that the sliding door is always in the full-latch state when the closing device is operated. In reality, the closing device must be able to operate reliably when the slide door is in the half-latch state, so in view of safety, when the slide door slides to a predetermined position near the half-latch position. It is set to start early, and the slide device is continuously operated even after the slide door reaches a predetermined position so that the slide door surely exceeds the half-latch position.

[0003]

The first problem of the above basic setting is that the slide device and the closing device operate simultaneously for a short time after the slide door has passed a predetermined position. If they are operated at the same time, a large load is applied to the battery and a sudden voltage drop occurs, making the operation of the slide device and the closing device unstable. For this reason, conventionally, a strengthened electrical system has been used, but an increase in size of the device is inevitable. The second problem of the above basic setting is that the slide device must always move the slide door to the half-latch position. In order to move the slide door to the half-latch position, an unexpectedly strong force is required due to the reaction force of the weather strip, etc., and thus the slide device becomes large. Therefore, if the slide door is moved by the slide device to a predetermined position near the half-latch position (hereinafter referred to as a transfer point), and if the setting is made to close the slide door only from the closing device, the slide device is required. The power is reduced, and the adverse effects of simultaneous operation with the closing device can be eliminated, and the device can be manufactured in a small size and at low cost. However, if the slide device is operated up to the transfer point, a transfer failure rarely occurs. At a prescribed position near the half-latch position, which is the transfer point, at least the latch must initially engage with the striker.At such a position, the sliding door receives a considerable reaction force of the weather strip. To work. On the other hand, the closing device has some time lag from the start of operation until the latch is actually restrained and rotated, and the latch is free during this time, so if the restraint of the latch is delayed, the weather strip In some cases, the sliding door is returned from the transfer point to the door opening side by the reaction force, and the initial engagement between the latch and the striker is released, so that the closing device may not be able to close the door.

[0004]

SUMMARY OF THE INVENTION Therefore, in the present invention, an electromagnetic brake provided in advance in a power slide device is utilized to smoothly carry over from the slide device to the closing device. The electromagnetic brake is often attached to the power slide device to improve the safety and operability of the power slide device, and its usage is various.

[0005]

Therefore, according to the present invention, the sliding door 11 is closed and slid by the power of the motor 14 of the power slide device 10, and the sliding door 11 reaches the takeover point before reaching the half-latch position. When the latch 26 of the door 11 is initially engaged with the striker 24 and the latch switch 31 is turned on, the sliding of the sliding door 11 closed by the motor 14 is stopped and the electromagnetic brake 17 is operated to operate the sliding door 11 Restraining the sliding movement of the sliding door 11 and turning on the latch switch 31 to start the power closing device 32 for rotating the latch 26 in the full latch direction, and when the predetermined time has elapsed, restraining the sliding door 11 by the electromagnetic brake 17. It is a method for controlling the power slide device for the vehicle slide door to be released. . Further, according to the present invention, the sliding door 11 is closed and slid by the power of the motor 14 of the power sliding device 10, the sliding door 11 reaches the takeover point before reaching the half latch position, and the latch 26 of the sliding door 11 strikes. When the latch switch 31 is initially engaged with the switch 24 and the latch switch 31 is turned on, the motor 14 is stopped, but the electromagnetic clutch of the clutch mechanism 25 that transmits the power of the motor 14 to the slide door 11 is operated as it is and the slide is performed. The sliding movement of the door 11 is restrained, and further, when the latch switch 31 is turned on, the power closing device 32 for rotating the latch 26 in the full latch direction is started, and after a predetermined time has passed, the restraint of the sliding door 11 by the electromagnetic clutch. The control method for the power slide device for the vehicle slide door That.

[0006]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a schematic relationship between a power slide device 10 according to the present invention and a vehicle slide door 11 that slides in a door closing direction and a door opening direction by the power slide device 10, and FIG. 2 is an expanded view thereof. The slide door 11 is slidably attached to the vehicle body 13 and slides in the front-rear direction of the vehicle body 13 along a guide rail 72 provided on the vehicle body 13. The base plate 12 of the power slide device 10 is fixed to the vehicle body 13, and the base plate 12 is provided with a motor 14, a speed reduction mechanism 15, a wire drum 16, and an electromagnetic brake 17. The electromagnetic brake 17 operates by electric control to brake the wire drum 16.

The wire drum 16 is connected to one end sides of two wire cables 18 and 19. The other end of the first wire cable 18 is connected to the bracket 21 of the slide door 11 via a front pulley 20 pivotally supported by the vehicle body 13. Similarly, the second wire cable 19
The other end side of is connected to the bracket 21 via a rear pulley 22 pivotally supported by the vehicle body 13.

The speed reduction mechanism 15 and the wire drum 1
A clutch mechanism 25 is provided between the motor 1 and the motor 1.
The rotation of 4 is transmitted to the wire drum 16 via the speed reduction mechanism 15 and the clutch mechanism 25. Although the structure of the clutch mechanism 25 is free, for example, a mechanism using an electromagnetic clutch that can electrically and freely switch between the motor 14 and the wire drum 16 between a connected state and a non-connected state, or a motor. The one that uses a clutch that switches to a connected state when 14 rotates and switches to a non-connected state when stopped,
The motor 1 is switched to the connected state by the rotation of the motor 14.
It is also possible to use a clutch (see Japanese Patent Application Laid-Open No. 2000-130015) that can maintain the connected state even when 4 is stopped.

The wire drum 1 is driven by the power of the motor 14.
When 6 rotates clockwise, the first wire cable 18 is taken up and the second wire cable 19 is pulled out, the slide door 11 slides in the closing direction, and the second wire cable 19 is rotated counterclockwise by the wire drum 16. The first wire cable 18 being wound up
Is pulled out, and the slide door 11 slides in the door opening direction.

The slide door 11 includes the slide door 11
The latch assembly 23 for holding the door in the closed position is attached. The latch body 36 of the latch assembly 23 is shown in FIG.
As described above, the latch 26 engaging with the striker 24 fixed to the vehicle body 13 and the ratchet 27 engaging with the latch 26 are locked. The latch 26 is biased counterclockwise by the elasticity of the latch spring 28, and the ratchet 27 is biased clockwise by the elasticity of a ratchet spring (not shown). When the slide door 11 moves in the closing direction,
The latch 26 comes into contact with the striker 24, and the ratchet 27 moves from the door open position (unlatch position) shown by the solid line to the ratchet 27 via the half latch position where the ratchet 27 engages with the half latch step 29 of the latch 26. Rotate to the full latch position shown by the solid line that engages the full latch step 30 of the latch 26. When the latch 26 is in the full latch position and the ratchet 27 is engaged with the full latch step 30, the slide door 11 is completely closed.

Reference numeral 31 is a latch switch for detecting the position of the latch 26. The latch 26 engages with the striker 24 by the movement of the slide door 11 in the closing direction, and the latch 26 engages with the striker 24 to a predetermined position (hereinafter also referred to as a transfer point). ) Turn to turn on. The timing at which the latch switch 31 is turned on is when the latch 26 is initially engaged with the striker 24, and before the latch 26 is in the half-latch position.

Reference numeral 32 is a motor-type power closing device which is activated when the latch switch 31 is turned on, and its output is transmitted to the drive lever 33. A pressing portion 34 is attached to the drive lever 33, and when the drive lever 33 rotates counterclockwise about the support shaft 35 by the power of the closing device 32,
The pressing portion 34 moves to the right along the guide groove 37 of the latch body 36. When the closing device 32 is activated, the latch 26 is at the take-over point where it is initially engaged with the striker 24, so that the pushing portion 34 moved to the right comes into contact with the latch leg portion 38 of the latch 26, The latch 26 is rotated to the full latch position by the power of the closing device 32 to completely close the slide door 11.

In the block circuit of FIG. 4, 66 is a controller, 68 is a battery, and 69 is an operation switch.

[0014]

When the operation switch 69 is operated to the closing side, the controller 66 performs the closing control, and the motor 14 of the power slide device 10 causes the wire drum 16 to rotate and the sliding door 11 slides in the closing direction. When the door 11 reaches the takeover point before reaching the half-latch position, the latch 26 of the slide door 11 is initially engaged with the striker 24 and the latch switch 31 is turned on.

When the latch switch 31 is turned on, the slide door 11 driven by the motor 14 of the power slide device 10 is moved.
Stop the closing slide of. Therefore, the power slide device 10 does not need to make the slide door 11 in the half-latched state, and thus may be smaller and cheaper than the conventional device.

However, when the closing switch slide is stopped by turning on the latch switch 31, the electromagnetic brake 1 is simultaneously released.
7 is operated to brake the wire drum 16 to restrain the sliding movement of the sliding door 11. This prevents the slide door 11 that has reached the transfer point from returning in the door opening direction due to the reaction force of the weather strip or the like.

Further, when the latch switch 31 is turned on, the power closing device 32 is started. In this way, since the closing device 32 is started after the slide device 10 is stopped,
The load on the battery is reduced compared to the conventional case.

When the power closing device 32 is started, however, the drive lever 33 rotates about the support shaft 35 and the pressing portion 34 moves to the right along the guide groove 37. After a lapse of a predetermined time, the pressing portion 34 comes into contact with the leg portion 38 of the latch 26 which is initially engaged with the striker 24. Therefore, at this time, the electromagnetic brake 17 is turned off to restrain the slide door 11. To cancel. As a result, the power closing device 32 will be used thereafter.
The latch 26 is rotated to the full-latch position by the pressing portion 34 that is moved by the power of, and the slide door 11 is completely closed.

Since the predetermined time from the start of the power closing device 32 to the contact of the pressing portion 34 with the leg portion 38 of the latch 26 is not strictly constant due to the battery voltage, it depends on the battery voltage. It is more suitable to change.

Although the sliding movement of the slide door 11 is restricted by the electromagnetic brake 17 in the present invention, the electromagnetic brake 17 may be provided in advance in the power slide device 10 for purposes other than the purpose of the present invention. desirable. That is, if the electromagnetic brake 17 is adopted only for the purpose of the present invention, the merit of downsizing the power slide device 10 and reducing the cost is reduced. To briefly describe the conventional usage of the electromagnetic brake, the slide door 11 (wire drum 16) is weakly braked when the opening of the slide door 11 is finished, so that the slide door 11 is securely held at the open position. The usage mode (see Japanese Patent Application Laid-Open No. 11-2911271), the usage mode in which the sliding door 11 stopped in the middle of the open door position and the closed door position is braked and held in place, and further, Mechanical clutch mechanism (Japanese Patent Laid-Open No. 2000-129015)
(See Japanese Patent Application No. 2000-4) in combination with the clutch mechanism to improve the operability and safety of the clutch mechanism.
03278 specification)). Further, when an electromagnetic clutch is adopted for the clutch mechanism 25 (Japanese Patent Laid-Open No. 11-3
If the electromagnetic clutch is actuated when the motor of the power slide device is stopped, the resistance of the motor-side speed reduction mechanism can be transmitted to the wire drum to substantially brake the wire drum. It is not necessary to employ the electromagnetic brake 17 separately.

[0021]

As described above, when the control method of the present invention is carried out, the power required for the power slide device 10 is reduced, so that the device can be downsized and the cost can be reduced. Since the power slide device 10 and the power close device 32 are not used at the same time, the load on the electrical system is reduced.

[Brief description of drawings]

FIG. 1 is a side view showing a relationship between a power slide device and a slide door according to the present invention.

FIG. 2 is a development view of the slide device and the slide door.

FIG. 3 is a sectional view of a latch assembly.

FIG. 4 is a block circuit diagram.

[Explanation of symbols]

10 ... Power sliding device, 11 ... Sliding door, 12 ... Base plate, 13 ... Car body, 14 ... Motor, 15 ... Reduction mechanism, 16 ... Wire drum, 17 ... Electromagnetic brake, 1
8, 19 ... Wire cable, 20 ... Front pulley, 2
1 ... Bracket, 22 ... Rear pulley, 23 ... Latch assembly, 24 ... Striker, 25 ... Clutch mechanism, 26
... Latch, 27 ... Ratchet, 28 ... Latch spring, 29
... half-latch step, 30 ... full-latch step, 31 ... latch switch, 32 ... power closing device, 33 ... drive lever, 34 ... pressing part, 35 ... support shaft, 36 ... latch body, 37 ... guide groove, 38 ... Latch leg, 66 ... Controller, 68 ... Battery, 69 ... Operation switch, 72
… Guide rails.

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[Procedure amendment]

[Submission date] August 14, 2002 (2002.8.1)
4)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

Claims (2)

[Claims] 1. A sliding door 11 is closed and slid by the power of a motor 14 of a power slide device 10, the sliding door 11 reaches a takeover point before reaching a half latch position, and a latch 26 of the sliding door 11 causes a striker 24. When the latch switch 31 is turned on by initially engaging with, the closing sliding of the sliding door 11 by the motor 14 is stopped and the electromagnetic brake 17 is operated to restrain the sliding movement of the sliding door 11, and When the latch switch 31 is turned on, the power closing device 32 for rotating the latch 26 in the full latch direction is started, and after a predetermined time has elapsed, the restraint of the slide door 11 by the electromagnetic brake 17 is released. Device control method. 2. The sliding door 11 is closed and slid by the power of the motor 14 of the power sliding device 10, the sliding door 11 reaches a takeover point before reaching the half latch position, and the latch 26 of the sliding door 11 causes the striker 24 to move. When the latch switch 31 is turned on by initially engaging with, the motor 14 is stopped, but the electromagnetic clutch of the clutch mechanism 25 for transmitting the power of the motor 14 to the slide door 11 is operated as it is to operate the slide door. 11 is restrained from sliding movement, and further, when the latch switch 31 is turned on, the power closing device 32 for rotating the latch 26 in the full latch direction is started, and after a predetermined time elapses, the sliding door 11 is restrained by the electromagnetic clutch. A control method of a power slide device for a vehicle slide door to be released.