JP3565317B2 - Automatic opening and closing device for sliding doors for vehicles - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an automatic opening / closing device for a vehicle sliding door that opens and closes a sliding door mounted on a side surface of a vehicle body of an automobile or the like by a driving source such as a motor, and particularly to control when the vehicle body receives an excessive impact. is there.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is known an automatic sliding door opening / closing device for a vehicle in which a sliding door is mounted on a side surface of a body of an automobile or the like so as to be movable in a front-rear direction, and the sliding door is opened and closed by a driving source such as a motor. .
[0003]
In this device, for example, by operating a slide door opening / closing operator provided near a driver's seat and a rear seat, a driving device is started by a control device installed in the vehicle, and an electromagnetic clutch is turned on (connected). The power of the drive source is transmitted to the sliding door opening / closing mechanism to open and close the sliding door.
[0004]
This device also has a main switch that selectively switches between an automatic opening and closing mode in which the sliding door is opened and closed by the power of the drive source and a manual opening and closing mode that is manually operated by the user. When the manual opening / closing mode is selected by the main switch while moving, the sliding door is stopped halfway, the electromagnetic clutch is turned off (disconnected), and the mode is switched to the manual opening / closing mode.
[0005]
Further, this device performs control to move the slide door in the opposite direction when it detects that the slide door has come into contact with any foreign matter while the slide door is moving in the opening or closing direction in the automatic opening / closing mode. Was.
[0006]
That is, for example, the slide door that has been moving in the opening direction is reversed in the closing direction, returned to near the fully closed position, and then moved again in the opening direction. Similarly, when the sliding door is moving in the closing direction, the sliding door is reversed in the opening direction, returned to near the fully opened position, and then moved in the closing direction again.
[0007]
For this reason, if the obstructive foreign matter is not removed, the slide door will reciprocate repeatedly, causing waste of the battery and damage to the mechanical unit. The door was stopped, the electromagnetic clutch was turned off, and the mode was switched to the manual opening / closing mode.
[0008]
[Problems to be solved by the invention]
As described above, the conventional automatic opening and closing device for a sliding door for a vehicle detects that the sliding door has come into contact with any foreign matter while the sliding door is moving in the opening or closing direction in the automatic opening and closing mode. Was equipped with an overload reversal function for reversing movement of
[0009]
For this reason, when the vehicle body is subjected to an excessive impact and, for example, a component such as a rail-shaped upper track for guiding the sliding door is deformed, the operating resistance of the sliding door is increased, thereby controlling the sliding door. The controller recognizes the increase in the operating resistance of the slide door as being trapped by a foreign object, and reversely moves the slide door. As a result, in some cases, the sliding door cannot be turned upside down and opened.
[0010]
The present invention has been made to solve such a conventional problem, and provides an automatic sliding door opening / closing device for a vehicle that does not reversely move halfway when a vehicle body receives an excessive impact. The purpose is to:
[0011]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a slide door that opens and closes along a side surface of a vehicle body, and a slide door drive that opens and closes the slide door based on a driving force of a drive source transmitted through a clutch means. Means, a movement signal generating means for generating a signal corresponding to a moving direction of the slide door, an impact detection means for detecting that an excessive impact is applied to the vehicle body, and a drive source and a clutch means for controlling the slide door drive. Slide door control means for controlling a driving force transmitted to the slide means. When the shock detection means detects an excessive impact, the slide door control means reverses the slide door when the operation resistance of the slide door increases. This is to release the load reversal function.
[0012]
According to the present invention, when an excessive impact is detected by the impact detection means, the overload reversing function is released to leave only the driving function, so that the sliding door is reversed even if the operating resistance of the sliding door increases. Has the effect of not moving.
[0013]
According to a second aspect of the present invention, in the first aspect, the slide door control means reversely moves the slide door when the operation resistance increases while the slide door is moving in the opening direction. This is to release the overload reversal function.
[0014]
According to the present invention, an excessive impact is detected by the impact detection means, and when the operating resistance increases while the sliding door is moving in the opening direction, the overload reversing function is released and only the driving function is left. In addition, even if the operating resistance of the sliding door increases, the sliding door does not reversely move in the closing direction.
[0015]
According to a third aspect of the present invention, there is provided a slide door that opens and closes along a side surface of a vehicle body, and a slide door drive that opens and closes the slide door based on a driving force of a drive source transmitted through a clutch means. Means, a movement signal generating means for generating a signal corresponding to a moving direction of the slide door, an impact detection means for detecting that an excessive impact is applied to the vehicle body, and a drive source and a clutch means for controlling the slide door drive. And a sliding door control means for controlling a driving force transmitted to the driving means. When the impact detecting means detects an excessive impact, the sliding door control means stops the driving source and causes the driving source by the clutch means to move between the driving source and the sliding door driving means. The connection is released to set a state in which a manual opening / closing operation is possible.
[0016]
According to the present invention, when an excessive impact is detected by the impact detection means, the automatic opening / closing mode is released and the mode is switched to the manual opening / closing mode by manual operation. It has the effect of not reversing.
[0017]
According to a fourth aspect of the present invention, in the third aspect of the present invention, an inclination detecting means for detecting an inclination of the vehicle body is provided, and the slide door control means detects the inclination when the impact detecting means is activated. When the means detects that the vehicle body has stopped in the downward direction on the slope, the clutch means is brought into a half-clutch state to temporarily hold the slide door.
[0018]
According to the present invention, when the automatic opening / closing mode is canceled and the manual opening / closing mode is switched to the manual opening / closing mode, the sliding means is set in a half-clutch state, so that the sliding door can be moved even when the vehicle body is stopped in the downward direction on the slope. It has the effect of not falling naturally in the closing direction.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is an external view showing an example of an automobile to which an automatic opening / closing device for a sliding door for a vehicle according to the present invention is applied, showing a state in which a sliding door 2 is mounted on a side surface of a vehicle body 1 so as to be able to open and close in the front-rear direction. I have. In FIG. 1, the components of the automatic opening / closing device provided in the vehicle body 1 are indicated by solid lines.
[0020]
In the figure, the slide door 2 is linked to a rail-shaped upper track 4A provided at an upper edge of a door opening 3 of the vehicle body 1 and a lower track 4B provided at a lower edge thereof, so that the sliding door 2 can move in the front-rear direction. Is slidably suspended in
[0021]
Further, the sliding door 2 is guided by a connecting member 5 attached to the inner rear end thereof slidably engaged with a guide track 6 fixed near the rear waist portion of the vehicle body 1, and seals the door opening 3. It is mounted so as to move slightly rearward from the fully closed position to the outside of the outer panel of the body 1 while moving parallel to the side of the exterior panel of the body 1 and to the fully open position where the door opening 3 is fully opened. ing.
[0022]
In addition, behind the door opening 3 of the vehicle body 1, a slide door driving device 7 and a slide door control device 8 are provided between the outer panel that covers the vehicle body 1 and the inner panel on the indoor side in close proximity to the guide track 6. It is installed. The slide door driving device 7 is configured to move a cable member disposed in the guide track 6 by a driving source such as a motor, thereby moving the slide door 2 connected to the cable member.
[0023]
Further, an impact detection sensor 9 as impact detection means for detecting that the vehicle body 1 has received an excessive impact due to a collision or the like is attached to a predetermined portion of the vehicle body 1. As the impact detection sensor 9, for example, an impact detection sensor of an air bag can be used.
[0024]
FIG. 2 is a block diagram showing an embodiment of the automatic sliding door opening / closing device for a vehicle according to the present invention, and shows an electrical connection configuration relating to control of the sliding door 2. In FIG. 1, a vehicle body 1 includes a slide door drive device 7 and a slide door control device 8 described above.
[0025]
The slide door driving device 7 includes a drive pulley 7a and a reversing pulley 7b, between which a cable member 7c is wound, a moving member 7d is fixed to the cable member 7c, and the moving member 7d and the slide door 2 are hinged. It is configured to be connected via an arm 21.
[0026]
The drive pulley 7a is connected via an electromagnetic clutch 7e to an opening / closing motor 7f that is a driving source. The electromagnetic clutch 7e is configured such that the transmission maintaining force is controlled by the slide door control device 8.
[0027]
The opening and closing motor 7f is driven to rotate in the opening direction or the closing direction under the control of the slide door control device 8. When the electromagnetic clutch 7e is turned on, the drive pulley 7a is driven to rotate in the same direction as the opening / closing motor 7f, and moves the cable member 7c in a straight line with the reverse pulley 7b. As a result, the slide door 2 moves in the front-back direction.
[0028]
A rotary encoder 7g is linked to the rotation shaft of the drive pulley 7a. The output pulse is input to a pulse signal generator 10 as a movement signal generator, and is input to the slide door control device 8 as two-phase pulse signals φ1 and φ2.
[0029]
The slide door control device 8 is configured to control the slide door drive device 7 having a drive source such as a motor by program control by a microcomputer, and to control opening and closing of the slide door 2.
[0030]
The sliding door control device 8 is connected to the battery 31 and receives the DC voltage BV, is connected to the ignition switch 32 and receives the ignition signal IG, is connected to the parking switch 33 and receives the parking signal PK, and is connected to the main switch 34. It is configured to receive a main switch signal MA which is connected to select an automatic opening / closing mode.
[0031]
The slide door control device 8 receives a door open signal DO connected to the door open switch 35 to instruct the slide door 2 to open, and is connected to the door close switch 36 to close the slide door 2 to instruct the slide door 2 to close. Then, it is connected to the buzzer 37 to generate an alarm sound when the slide door 2 is automatically opened and closed, and is connected to the inclination sensor 38 to detect the inclination angle and the inclination direction of the vehicle body. And is configured to receive the shock signal SH.
[0032]
FIG. 3 is a schematic configuration diagram showing an example of the rotary encoder 7g, and FIG. 4 is an output waveform diagram thereof. The rotary encoder 7g includes a rotating disk RD attached to the rotating shaft of the drive pulley 7a, a plurality of slits SL formed concentrically on the rotating disk RD, and light emitting elements LD arranged on both sides thereof. And a light receiving element PD. Two series of slits SL are formed concentrically to obtain two-phase pulse signals φ1 and φ2.
[0033]
The waveform diagram of FIG. 4A shows two-phase pulse signals φ1 and φ2 obtained when the rotating disk RD rotates clockwise, and the waveform diagram of FIG. 4B shows the waveform when the rotating disk RD rotates counterclockwise. Are the two-phase pulse signals φ1 and φ2. In this example, when the rotating disk RD rotates clockwise, the slide door 2 is driven in the opening direction.
[0034]
Therefore, the slide door control device 8 determines the rotation direction of the rotary encoder 7g, that is, the movement direction of the slide door 2, from the phase relationship between the two signals. For example, when the pulse signal φ1 rises, if the pulse signal φ2 is at a high level, the direction is determined to be an open direction (FIG. A).
[0035]
Further, the slide door control device 8 determines the position of the slide door 2 by measuring the amount of movement of the cable member 7c from the number of pulses of the pulse signals φ1 and φ2. That is, if the number of pulses up to the fully open position is counted using the fully closed position of the slide door 2 as an initial value, the counted value indicates the position of the moving member 7d, that is, the position of the slide door 2.
[0036]
Returning to FIG. 2, inside the slide door 2, a closure motor 22 for tightening the slide door 2 from immediately before the half latch to the full latch, a closure control unit 23 for controlling the same, and the fact that the slide door 2 has reached the half latch. A half switch 24 for detecting is provided.
[0037]
Further, in the slide door 2, a release actuator (ACT) 26 that drives the door lock 25 to unlock from a striker 39 provided on the vehicle body 1 side, and a door handle 27 that unlocks the door lock 25 similarly to the release ACT 26. It has. The door lock 25 and the striker 39 constitute a door lock mechanism.
[0038]
The electric element on the vehicle body 1 side and the electric element on the slide door 2 side are connected with the vehicle body side connector 40 provided in the door opening 3 by sliding the slide door 2 from the fully closed state to a slightly open state. This is performed by coupling with a door-side connector 28 provided at the opening end of the door 2. The vehicle-side connector 40 and the door-side connector 28 constitute a power supply connector.
[0039]
Further, the closure control unit 23 is connected to the battery 31 on the vehicle body 1 side and the ground via both connectors 40 and 28, one end of the half switch 24 is grounded, and the other end is connected to the slide door control device 8 and the closure control unit 23. The release ACT 26 has one end connected to the battery 31 and the other end connected to the slide door control device 8.
[0040]
Next, a door opening operation process for moving the slide door 2 to the fully open position will be described with reference to a flowchart shown in FIG.
[0041]
First, when the impact detection sensor 9 does not detect an excessive impact (step S1), the slide door control device 8 determines whether or not conditions for operating the slide door 2 in the opening direction are satisfied (step S2). . That is, the parking signal PK detects that the vehicle body 1 is stopped, the main switch signal MA detects that the automatic opening / closing mode is set, and the door opening signal DO indicates that the opening command is selected. By detecting that the current position of the slide door 2 is not the fully open position, it is determined that the condition for operating the slide door 2 in the opening direction is satisfied.
[0042]
When this condition is satisfied, the opening / closing motor 7f and the drive pulley 7a are mechanically connected by the electromagnetic clutch 7e of the sliding door driving device 7, and the opening / closing motor 7f is rotated in the door opening direction to start the sliding door 2. It is moved in the opening direction (step S3).
[0043]
In the meantime, the slide door 2 is moved in the opening direction (step S5) while the overload detection is performed to determine whether or not any foreign matter that suppresses the movement of the slide door 2 is caught (step S4), and the slide door 2 reaches the fully open position. Is detected (step S6), the opening / closing motor 7f is stopped, the mechanical connection between the opening / closing motor 7f by the electromagnetic clutch 7e and the drive pulley 7a is released (step S7), and the process ends.
[0044]
If the operation resistance of the slide door 2 increases due to the foreign object being caught or the like and an overload is detected (step S4), the slide door control device 8 controls the slide door drive device 7 to reversely drive the opening / closing motor 7f in the closing direction. The slide door 2 is reversed in the closing direction (Step S8).
[0045]
Upon detecting that the slide door 2 has reached the fully closed position (step S9), the opening / closing motor 7f is stopped, and the mechanical connection between the opening / closing motor 7f by the electromagnetic clutch 7e and the drive pulley 7a is released (step S7). , And the process ends.
[0046]
When the impact detection sensor 9 detects an excessive impact (step S1), it is determined whether or not the above-described condition for operating the sliding door 2 in the opening direction is satisfied (step S11). The opening / closing motor 7f is mechanically connected to the drive pulley 7a by the electromagnetic clutch 7e of the sliding door driving device 7, and the opening / closing motor 7f is rotated in the door opening direction to move the sliding door 2 in the opening direction (step S12). , S13).
[0047]
When it is detected that the fully opened position has been reached (step S14), the opening / closing motor 7f is stopped, the mechanical connection between the opening / closing motor 7f by the electromagnetic clutch 7e and the drive pulley 7a is released (step S7), and the process is terminated.
[0048]
As described above, in the present embodiment, when an excessive impact is detected by the impact detection sensor 9, the overload reversal function is released and only the drive function in the opening direction is left. Even if there is some deformation in the components described above, the sliding door 2 can be prevented from reversing from the opening direction to the closing direction even if the operating resistance of the sliding door 2 increases.
[0049]
Next, another operation example of the door opening operation process of moving the slide door 2 to the fully open position will be described with reference to a flowchart shown in FIG. In the figure, the processing (steps S1 to S9) when the impact detection sensor 9 does not detect an excessive impact is the same as the above-described processing, and thus the description is omitted.
[0050]
When the impact detection sensor 9 detects an excessive impact (step S1), the slide door control device 8 determines whether the vehicle body 1 is stopped on a flat ground or stopped on a sloped ground by the inclination sensor 38. (Step S21).
[0051]
When the vehicle body 1 is stopped on a flat ground, the opening / closing motor 7f is stopped, the mechanical connection between the opening / closing motor 7f by the electromagnetic clutch 7e and the drive pulley 7a is released, and further, the automatic opening / closing mode is released and manual operation is performed. The mode is set to the manual opening / closing mode in which the opening / closing operation can be performed (step S22), and the process ends.
[0052]
When the vehicle body 1 is stopped in a downward direction on a slope, that is, when the front part of the vehicle body 1 is stopped at a position lower than the rear part, the opening / closing motor 7f is stopped, and the opening / closing motor 7f is driven by the electromagnetic clutch 7e. The mechanical connection with the pulley 7a is half-clutched, the slide door 2 is temporarily held so as not to drop and close, and the automatic opening / closing mode is released to set a manual opening / closing mode in which a manual opening / closing operation can be performed ( Step S23), the process ends.
[0053]
As described above, in the present embodiment, when an excessive impact is detected by the impact detection sensor 9, the automatic opening / closing mode is released and switched to the manual opening / closing mode in which manual operation is possible. Even if there is some deformation in the components described above, the sliding door 2 can be prevented from reversing from the opening direction to the closing direction even if the operating resistance of the sliding door 2 increases.
[0054]
【The invention's effect】
According to the first aspect of the present invention, when an excessive impact is detected by the impact detection sensor, the overload reversal function is released, so that even when the operating resistance of the moving slide door increases, An advantageous effect that the sliding door does not move in reverse is obtained.
[0055]
According to the second aspect of the present invention, when an excessive impact is detected by the impact detection sensor and the operating resistance increases while the sliding door is moving in the opening direction, the overload reversing function is released. In addition, even when the operating resistance of the sliding door increases, an advantageous effect that the sliding door does not reversely move in the closing direction can be obtained.
[0056]
According to the third aspect of the invention, when an excessive impact is detected by the impact detection sensor, the automatic opening / closing mode is released and the mode is switched to the manual opening / closing mode by manual operation. Even if the operating resistance increases, an advantageous effect that the sliding door does not reversely move can be obtained.
[0057]
According to the fourth aspect of the present invention, when an excessive impact is detected by the impact detection sensor, and the automatic opening / closing mode is released and switched to the manual opening / closing mode, the clutch means is set to a half-clutch state, thereby providing a vehicle body. Has an advantageous effect that the sliding door naturally falls and does not close even if the sliding door stops on a slope in the downward direction.
[Brief description of the drawings]
FIG. 1 is an external view showing an example of an automobile to which the present invention is applied.
FIG. 2 is a block diagram showing an embodiment of the present invention.
FIG. 3 is a schematic configuration diagram of a rotary encoder.
FIG. 4 is an explanatory diagram of an output of a rotary encoder.
FIG. 5 is a flowchart illustrating an operation example of the present invention.
FIG. 6 is a flowchart illustrating another operation example of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Body 2 Slide door 3 Door opening 4A Upper track 4B Lower track 5 Connecting member 6 Guide track 7 Slide door drive 7a Drive pulley 7b Reversing pulley 7c Cable member 7d Moving member 7e Electromagnetic clutch 7f Opening / closing motor 7g Rotary encoder 8 Slide door Control device 9 Shock detection sensor 10 Pulse signal generator 21 Hinge arm 22 Closure motor 23 Closure controller 24 Half switch 25 Door lock 26 Release ACT
27 door handle 28 door side connector 31 battery 32 ignition switch 33 parking switch 34 main switch 35 door open switch 36 door close switch 37 buzzer 38 tilt sensor 39 striker 40 body side connector LD light emitting element PD light receiving element RD rotating disk SL slit

Claims (4)

A sliding door that opens and closes along the side of the body,
A slide door driving unit that opens and closes the slide door based on a driving force of a driving source transmitted through a clutch unit;
Moving signal generating means for generating a signal according to the moving direction of the sliding door,
Impact detection means for detecting that the vehicle body has received an excessive impact,
Slide door control means for controlling the driving source and the clutch means to control the driving force transmitted to the slide door drive means,
The slide door control means cancels an overload reversal function of reversing the slide door when the operation resistance of the slide door is increased when the impact detection means detects an excessive impact. Automatic opening and closing device for sliding doors. In the invention described in claim 1, the slide door control means cancels an overload reversal function of reversing the slide door when the operation resistance increases while the slide door is moving in the opening direction. Automatic sliding door opening and closing device for vehicles. A sliding door that opens and closes along the side of the body,
A slide door driving unit that opens and closes the slide door based on a driving force of a driving source transmitted through a clutch unit;
Moving signal generating means for generating a signal according to the moving direction of the sliding door,
Impact detection means for detecting that the vehicle body has received an excessive impact,
Slide door control means for controlling the driving source and the clutch means to control the driving force transmitted to the slide door drive means,
When the impact detection means detects an excessive impact, the slide door control means stops the drive source, releases the connection between the drive source by the clutch means and the slide door drive means, and allows a manual opening / closing operation. An automatic opening and closing device for a sliding door for a vehicle, wherein the automatic sliding device is set in an appropriate state. The invention according to claim 3, further comprising an inclination detecting means for detecting an inclination of the vehicle body, wherein the slide door control means lowers the vehicle body to an inclined ground by the inclination detecting means when the impact detecting means is operated. The automatic sliding door opening / closing device for a vehicle, wherein, when it is detected that the sliding door is stopped, the clutch means is half-clutched and the sliding door is temporarily held.

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