JP3445083B2 - Automatic sliding door control device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic slide door control device for controlling opening / closing of a slide door.

[0002]

2. Description of the Related Art Conventionally, in an automatic slide door provided in a vehicle, a half-open state of the slide door is detected and a half-open state is detected when the open / close operation is stopped during the opening / closing operation of the slide door. There is known an automatic slide door control device including a continuation unit that continues energization of an electromagnetic clutch that joins a moving mechanism that opens and closes the slide door and a motor having a worm gear speed reducer (actual Kaihei). 3-37172 publication).

In this automatic slide door, when the vehicle is stopped on a sloped road surface, the rotation resistance of the motor is applied to the moving mechanism that opens and closes the slide door through the worm gear reducer, so that the vehicle is tilted. The sliding door can be restrained from moving in its own weight drop direction along the road surface, while the sliding door can be manually opened and closed.

[0004]

However, in the above automatic slide door control device, when the ignition switch is turned off and the engine is stopped, the electromagnetic clutch is de-energized and the battery capacity is exhausted. Since it is configured to prevent the battery from running down, the slide door starts to move in the self-weight falling direction along the sloped road surface. At this time, when the inclination angle of the inclined road surface is large, the moving speed of the slide door in the direction of falling by its own weight becomes fast, and the impact on the stopper portion with which the slide door abuts becomes large. Therefore, it is necessary to take measures such as setting the strength of the stopper portion in advance to a high level, which has been a factor of high cost.

The present invention has been made in view of such conventional problems, and even when the connection between the moving mechanism for opening and closing the sliding door and the motor for driving the moving mechanism is disconnected. It is an object of the present invention to provide an automatic slide door control device capable of suppressing the movement of the slide door.

[0006]

In order to solve the above problems, in the invention of claim 1, a moving mechanism for reciprocating a slide door from a fully open position to a fully closed position, A drive motor provided with a worm gear reducer for driving the moving mechanism, and a joining state in which the worm gear reducer of the drive motor and the moving mechanism are joined and separated from each other, provided between the drive motor and the moving mechanism. A control device for a slide door, comprising: a connecting / disconnecting means capable of forming a cut state; and a control means for controlling the connecting / disconnecting means to the joined state or the cut state, wherein While detecting a half-open state located between the fully open position and the fully closed position, at least when controlling the connecting / disconnecting means to the disconnected state in a state in which the half-open state is detected, The Kidanse' means, after repeating several times the intermittent cycle to control the bonding state after the control in the disconnection state, to control the disconnection state.

That is, in the half-opened state in which the slide door is located between the fully open position and the fully closed position, the moving mechanism for reciprocating the slide door and the drive motor for driving the moving mechanism are joined together. The control means for controlling the connecting / disconnecting means in the disconnected state in which the moving mechanism and the drive motor are separated is an intermittent cycle in which the connecting / disconnecting means is controlled in the disconnected state and then in the joined state. After repeating a plurality of times, the cutting state is controlled. Therefore, immediately before the connecting / disconnecting means is controlled to the disconnected state, the moving mechanism for moving the slide door has a plurality of intermittent rotation resistances due to the drive motor via the worm gear reducer. Added again.

Further, in the invention of claim 2, the control means reduces the ratio of the joining state in the intermittent cycle as the transition from the start point to the end point of the intermittent cycle.

That is, immediately before the cut state is controlled, the rotational resistance applied to the moving mechanism from the drive motor is reduced as the transition from the start point to the end point of the interrupting cycle.

Further, according to the invention of claim 3, there is provided a moving mechanism for reciprocating the slide door from the fully open position to the fully closed position, and a worm gear reducer for driving the moving mechanism. A drive motor, and a connecting / disconnecting means that is provided between the drive motor and the moving mechanism, and is capable of forming a joined state in which the worm gear reducer of the drive motor and the moving mechanism are joined and a disconnected state in which the joined state is separated. A control device for a slide door, comprising: a control means for controlling the connecting / disconnecting means to the joined state or the disconnected state, wherein the control means is configured so that the slide door is provided between the fully open position and the fully closed position. While detecting a passing state after passing a predetermined point provided in and a half open state in which the slide door is located between the fully open position and the fully closed position, at least the half open state is detected. Upon controlling the disconnection device to the disconnected state in a state in which the, starts the measurement of the predetermined time, upon detecting the passing state within the predetermined time,
The connecting / disconnecting means is controlled to the joined state for a predetermined time.

That is, in a half-opened state in which the slide door is located between the fully open position and the fully closed position, a moving mechanism for reciprocating the slide door and a drive motor for driving the moving mechanism are joined together. The control means for controlling the connecting / disconnecting means in the cutting state in which the moving mechanism and the drive motor are separated from each other, starts measuring a certain time from the time of controlling the cutting state, and within the certain time, The connecting / disconnecting means is controlled to the joining state for a predetermined time when a passage state in which the slide door has passed a predetermined point provided between the fully open position and the fully closed position is detected.
Thereby, the connecting / disconnecting means is controlled to the disconnected state,
When the sliding door starts to move and passes the predetermined point within the predetermined time, a rotational resistance by the drive motor is applied to the moving mechanism for a predetermined time via the worm gear speed reducer.

[0012]

DETAILED DESCRIPTION OF THE INVENTION

(First Embodiment) A first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a vehicle 1 equipped with a control device for an automatic slide door according to the present embodiment, and a side portion of the vehicle 1 is provided with a boarding / alighting opening 2 and a step 3 and A slide door 4 that opens and closes the boarding / alighting opening 2 is provided.

The upper end of the sliding door 4 on the front side of the vehicle 1 is supported by an upper roller 11 which moves along the upper edge of the boarding / alighting opening 2, and the lower end is along the side surface 12 of the step 3. It is supported by the lower roller 13 that moves by moving. Further, the central portion on the rear side of the vehicle 1 is
It is supported by the rear roller 14 that moves in the front-back direction,
It is configured to be movable in the front-rear direction of the vehicle 1 from a fully open position where the boarding / alighting opening 2 is fully opened to a fully closed position where the vehicle is fully closed. The pillar 15 forming the edge of the boarding / alighting opening 2 on the rear side of the vehicle 1 includes a fully closed limit switch 1
6 is provided, and the fully closed limit switch 16 is
As shown in FIG. 2, when the slide door 4 is moved to the fully closed position, it is pressed by a step surface 17 formed at the rear end portion of the slide door 4 to operate. As shown in FIG. 1, in the slide door 4, the upper portion of the lower roller 13 is fixed to the pulling member 18 extending from the side surface 12 of the step 3, and the pulling member 18 pulls the slide door 4. It is configured to be moved and moved.

Inside the step 3 in which the pulling member 18 extends, a moving mechanism 2 for moving the slide door 4 through the pulling member 18 as shown by a broken line in FIG.
1 is provided. The moving mechanism 21 includes a support member 22 that supports the end portion of the pulling member 18, and the support member 22.
And a first and second pulleys 24, 25 for movably supporting the belt 23 along the side surface 12 of the step 3, and a corner portion 26 of the step 3 It is configured by a drive pulley 27 that moves the belt 23. An electromagnetic clutch 28 as a connecting / disconnecting means is meshed with the drive pulley 27, and an intermediate gear 29 is meshed with the electromagnetic clutch 28. A drive motor 31 having a worm gear reducer 30 is connected to the intermediate gear 29.

As shown in FIG. 4, the worm gear speed reducer 30 includes a multi-start worm 33 (a double-start worm is shown in FIG. 4 as an example) provided on a rotary shaft 32 of the drive motor 31. , A worm wheel 34 that meshes with the multi-row worm 33 and meshes with the intermediate gear 29 (see FIG. 3).
The rotation of the worm wheel 34 is allowed by reducing the resistance between the worm wheel 34 and the multi-thread worm 33. Thereby, the electromagnetic clutch 2
When 8 is controlled to be off, the drive motor 31 and the drive pulley 27 are separated from each other, and when controlled to be on, the drive motor 31 and the drive pulley 27 are separated from each other. Are joined together to form a joined state, and the slide door 4 can be manually opened and closed.

At a portion along the moving path of the belt 23, the position of the support member 22 accompanying the movement of the slide door 4 to the fully open position is detected, and the slide door 4 reaches the fully open position. A full-open limit switch 41 for detecting that the position of the support member 22 is provided at an intermediate point between the second pulley 25 and the first pulley 24. To detect
An intermediate switch 42 is provided for detecting that the slide door 4 has reached an intermediate point between the fully open position and the fully closed position. These intermediate switch 42 and full open limit switch 41, the drive motor 31 and the electromagnetic clutch 2
8 and the fully closed limit switch 16 shown in FIG.
Is connected to the control unit 43 installed in the vehicle 1, as shown in FIG.

The control unit 43 includes a CPU 5
1, a ROM 52 in which the processing procedure and data by the CPU 51 are stored, and a control section 5 centering on a RAM 53 for storing data in the processing process of the CPU 51
4 and first to third relays 55 to 57 that are turned on and off by the output from the control unit 54. The drive motor 3 is connected to the first and second relays 55 and 56.
1 is connected to the respective terminals of the drive motor 31.
However, it is configured so that a normal rotation, a reverse rotation, and a brake state can be formed. The electromagnetic clutch 28 is connected to the third relay 57, and when the third relay 57 is on-controlled, the electromagnetic clutch 28 is turned on, that is, the joined state is formed. Has been done.

Further, the control unit 54 is configured to transmit a RAN signal indicating that the engine provided in the vehicle 1 is operating. In addition, this control unit 5
An ignition switch 58 and an operation switch 59 that is operated when the slide door 4 is moved in the opening direction and the closing direction are connected to the switch 4.

A specific operation of the present embodiment having the above configuration will be described with reference to the flowchart shown in FIG.

That is, the CPU 51 provided in the control section 54 of the control unit 43, the ignition switch 5 according to the program stored in the ROM 52.
It is determined in step S1 whether the engine No. 8 is turned on and the engine is operating. If the ignition switch 58 is turned off or the engine is stopped, the process ends without performing the subsequent processing, while if the ignition switch 58 is turned on and the engine is operating, the operation is performed. It is determined whether the switch 59 is operated (S2). At this time, when the operation switch 59 is operated, the third relay 57 is turned on and the electromagnetic clutch 28 is turned on (S3), and then either the first relay 55 or the second relay 56 is turned on. Is turned on, and the drive motor 31 is normally or reversely rotated according to the operation state of the operation switch 59 (S4).
Then, the driving force of the drive motor 31 is equal to the electromagnetic clutch 28.
The slide door 4 that is transmitted to the drive pulley 27, the belt 31, and the pulling member 18 provided on the belt 31 via the drive pulley 21, and is pulled by the pulling member 18,
It is moved toward the fully closed position or the fully open position (Fig. 3).
reference).

Next, it is judged from the input state from the fully open limit switch 41 or the fully closed limit switch 16 whether the slide door 4 has reached the fully open position or the fully closed position (S5). If the fully open position or the fully closed position has not been reached, it is determined in the next step S6 whether or not the ignition switch 58 has been turned off and the engine has stopped, while the fully open position or the fully closed position has been reached. After the drive motor 31 is stopped (S7), the electromagnetic clutch 28 is turned off (S7).
8) Then, the process proceeds to step S6. This step S6
When the ignition switch 58 is turned on and the engine is operating, the process branches to step S2, and steps S1 to S8 described above are executed. In addition,
In step S2, when the operation switch 59 is not operated, that is, when the operation of the operation switch 59 is released, the drive motor 31 is stopped while maintaining the operation state of the electromagnetic clutch 28 (S9). ) After the slide door 4 is manually opened and closed, the step S6 is performed.
Move to.

In step S6, when the ignition switch 58 is turned off and the engine is stopped, the drive motor 31 is stopped (S10), and then the slide door 4 reaches the fully open position or the fully closed position. It is determined whether or not (S11). When the fully open position or the fully closed position has been reached, the electromagnetic clutch 28 is controlled to be turned off (S12) and the process is terminated, while when the fully open position or the fully closed position has not been reached, that is, the slide door 4 is When it is determined that the electromagnetic clutch 28 is in the half-open state between the fully open position and the fully closed position, an intermittent process routine S13 that repeats the on / off control of the electromagnetic clutch 28 is executed.

That is, this intermittent processing routine S13
Is an OFF section TOFF (1 to 5) in which the electromagnetic clutch 28 is OFF controlled, as shown in the timing chart of FIG.
And the ON section TON (1 to 5) for ON control are repeated 5 times from the start point ST to the end point ED, and then the electromagnetic clutch 2
8 is a processing routine for controlling OFF of 8. Therefore, immediately before the electromagnetic clutch 28 is turned off, a plurality of rotation resistances of the drive motor 31 are intermittently applied to the moving mechanism 21 that moves the slide door 4 via the worm gear reducer 30. Since the sliding door 4 can be rotated, the movement of the sliding door 4 can be suppressed even when the ignition switch 58 is turned off and the engine is stopped when the sliding door 4 is in the half-open state. By turning off the electromagnetic clutch 28 at the end point ED, it is possible to prevent the consumption of the battery capacity. Therefore, when the electromagnetic clutch 28 is stopped on a sloped road surface having a large gradient angle, the movement of the slide door 4 is not suppressed when the electromagnetic clutch 28 is turned off, and the movement speed of the slide door 4 is increased. As in the past, where the impact on the part increases,
It is not necessary to take measures such as setting the strength of the stopper portion in advance to a high level, and the cost can be reduced.

The proportion occupied by the ON sections TON1 to TON5 in each of the intermittent cycles DS1 to 5 is decreased as the transition from the starting point ST at which the intermittent cycles DS1 to 5 are started to the ending point ED at which it is ended. Is set to (TON1>TON2> TON3 ...,
TOFF1 <TOFF2 <TOFF3 ...). Thus, the drive motor 3 added to the moving mechanism 21 immediately before the electromagnetic clutch 28 is turned off.
The rotational resistance from 1 can be reduced as the transition from the start time point ST at which the intermittent cycles DS1 to 5 are started to the end time point ED at which it is ended. Therefore, when the vehicle is parked on a sloped road surface with a large slope angle, the initial speed when the slide door 4 moves can be reduced, while on the sloped road surface with a small slope angle, the end point ED Since the movement of the slide door 4 can be promoted in the vicinity, it is not necessary to selectively change the control method depending on the difference in the slope angle of the slope road surface, and the control method can be unified.

(Second Embodiment) FIG. 8 is a flow chart showing a second embodiment, which is the first embodiment shown in FIG.
Only parts different from the flowcharts in the embodiment will be described.

That is, when the ignition switch 58 is turned off and the engine is stopped (S6),
After stopping the drive motor 31 (S10), the electromagnetic clutch 28 is turned off (S21), and a timer for measuring a predetermined fixed time is started (S22). Then, a loop is made between step S23 for determining whether or not the specified time has elapsed and step S24 for determining whether or not there is an input from the intermediate switch 42 before the specified time elapses. If the specified time has elapsed, the process ends without performing the subsequent process,
When an input from the intermediate switch 42 is detected within a specified time, that is, when the slide door 4 moves through the intermediate switch 42 when the slope road surface with a large slope is stopped, After the electromagnetic clutch 28 is on-controlled for a predetermined time (S25), it is off-controlled (S2).
6) Finish.

As a result, the electromagnetic clutch 28 is turned on for a predetermined time only when the vehicle is stopped on a sloped road having a large slope and the moving speed of the slide door 4 is high.
Rotational resistance caused by the drive motor 31 is applied to the moving mechanism 21 that moves the slide door 4 while minimizing the consumption of battery capacity, and the worm gear reducer 3 is used.
It is possible to add for a predetermined time through 0. Therefore, similarly to the first embodiment, the movement of the slide door 4 along the sloped road surface can be suppressed, and even when the slide door 4 is stopped on the sloped road surface having a large slope angle, For example, the strength of the stopper portion may be set to a high value in advance as in the conventional case in which the movement speed is increased without restraining the movement and the impact on the stopper portion with which the slide door 4 contacts is increased. No measures are required, and the cost can be reduced.

On the other hand, when the intermediate point where the intermediate switch 42 is provided is not passed within the specified time, that is, when the moving speed of the slide door 4 is relatively slow,
Since the rotation resistance of the drive motor 31 is not added to the moving mechanism 21 that moves the slide door 4, the movement of the slide door 4 can be promoted. Therefore, as in the case of the first embodiment, it is not necessary to selectively change the control method depending on the difference in the slope angle of the slope road surface,
The control method can be unified.

[0029]

As described above, according to the first aspect of the invention, the connecting / disconnecting means in the joined state in which the moving mechanism for moving the slide door and the drive motor are joined, is provided with the moving mechanism and the drive motor. Immediately before controlling to the disconnected state, the rotation resistance of the drive motor is intermittently applied to the moving mechanism that moves the slide door a plurality of times through the worm gear reducer provided in the drive motor. Therefore, the movement of the slide door along the inclined road surface can be suppressed. Therefore, when the vehicle is parked on an inclined road surface with a large inclination angle and the connecting / disconnecting means is controlled to be in the disconnected state, the movement speed of the slide door is increased without being suppressed, and the stopper that the slide door abuts against. As in the conventional case where the impact on the portion becomes large, it is not necessary to take measures such as setting the strength of the stopper portion to a high value in advance, and the cost can be reduced.

Further, in the case of the second aspect of the invention, the rotational resistance of the drive motor, which is intermittently applied to the moving mechanism a plurality of times, is decreased as the transition from the start time point to the end time point is made, so that the gradient angle is increased. When the vehicle is stopped on an inclined road surface, it is possible to reduce the initial speed when the slide door moves. Further, on a sloped road surface having a small inclination angle, the movement of the slide door can be promoted near the end point. For this reason,
It is not necessary to selectively change the control method depending on the difference in the slope angle of the sloping road surface, and the control method can be unified.

According to the third aspect of the invention, the connecting / disconnecting means in the joined state in which the moving mechanism for moving the slide door and the drive motor are joined is brought into the disconnected state for separating the moving mechanism and the drive motor. When the slide door is controlled and starts to move, and when a predetermined point provided between the fully open position and the fully closed position is passed within a certain time, that is, the slide angle is large because the slope angle is large. In the case where the moving speed of the door is high and the door passes through the predetermined point set in advance within the fixed time, the rotation resistance of the drive motor passes through a worm gear reducer provided in the drive motor. Then, the moving mechanism is applied for a predetermined time. Therefore, similarly to the case of claim 1, the movement of the slide door along the inclined road surface can be suppressed, and the movement of the slide door is suppressed even when the vehicle is stopped on the inclined road surface having a large inclination angle. The speed of movement is increased without being pushed, and the impact on the stopper portion with which the slide door abuts becomes large, so that there is no need to take measures such as setting the strength of the stopper portion to a high value in advance, as in the conventional case.
Cost reduction can be achieved.

On the other hand, when the vehicle does not pass the predetermined point within the certain time, that is, when the moving speed of the slide door is relatively slow, the rotation resistance of the drive motor causes the moving mechanism to move the slide door. Therefore, the movement of the slide door can be promoted. Therefore, as in the case of claim 2, it is not necessary to selectively change the control method depending on the difference in the slope angle of the slope road surface,
The control method can be unified.

[0033]

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along the line SA-SA in FIG.

FIG. 3 is a view showing an arrow A in FIG.

FIG. 4 is a cross-sectional view showing a worm gear reducer in the same embodiment.

FIG. 5 is a block diagram showing a control unit in the same embodiment.

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

FIG. 7 is a timing chart showing a control procedure of the electromagnetic clutch performed by the on-off processing routine in FIG.

FIG. 8 is a flowchart showing the operation of the second embodiment.

[Explanation of symbols]

4 sliding doors 16 Fully closed limit switch 21 Moving mechanism 23 belt 25 Fully open switch 27 Drive pulley 28 Electromagnetic clutch (connection / disconnection means) 30 worm gear reducer 31 Drive motor 42 Intermediate switch 43 Control unit 51 CPU 52 ROM 53 RAM 54 control unit

Claims (3)

(57) [Claims] 1. A moving mechanism for reciprocating a sliding door from a fully open position to a fully closed position, a drive motor having a worm gear reducer for driving the moving mechanism, the drive motor and the moving mechanism. A connecting / disconnecting means provided between the worm gear reducer of the drive motor and the moving mechanism and capable of forming a disconnected state separated from each other, and the connecting / disconnecting means. In the control device for the slide door, comprising: a control unit for controlling the cut state, the control unit detects a half-open state in which the slide door is located between the fully open position and the fully closed position, When controlling the connecting / disconnecting means to the disconnected state at least in the state where the half-open state is detected, the connecting / disconnecting means is
A control device for an automatic slide door, characterized in that, after repeating an intermittent cycle of controlling to the disconnected state and then to the bonded state a plurality of times, the disconnected state is controlled. 2. The automatic control system according to claim 1, wherein the control means reduces the ratio of the joining state in the intermittent cycle as the transition from the time point at which the intermittent cycle starts to the time point at which the intermittent cycle ends. Sliding door control device. 3. A moving mechanism for reciprocating a sliding door from a fully open position to a fully closed position, a drive motor having a worm gear reducer for driving the moving mechanism, the drive motor and the moving mechanism. A connecting / disconnecting means provided between the worm gear reducer of the drive motor and the moving mechanism and capable of forming a disconnected state separated from each other, and the connecting / disconnecting means. A control device for a slide door, comprising: a control means for controlling the cut state, wherein the control means is configured to pass when the slide door has passed a predetermined point provided between the fully open position and the fully closed position. While detecting the state and the half open state in which the slide door is located between the fully open position and the fully closed position, the connecting / disconnecting means is operated at least in the state where the half open state is detected. When controlling to the cutting state, while starting measurement of a fixed time, when the passage state is detected within the fixed time, the connecting / disconnecting means is controlled to the bonding state for a predetermined time. Automatic slide door control device.