JPH06227256A - Car door opening/shutting control device - Google Patents

Abstract

PURPOSE:To provide an opening/closing control device for car door having two opening/closing shafts which is able to perform the specified door opening/ closing motions with a single driving means on the car body side and which is embodied simple, small, and light, and to provide a car door opening/closing control device which is equipped with a driving means only on the car body side and wherein the door itself is made small and light. CONSTITUTION:An opening/closing control device for a car door includes a driving means 10 to drive two opening/closing shafts 3, 4, brakes 14, 17 to restrain the rotational motions of the shafts, clutches 16, 16 to coupled the output shaft of the driving means with the opening/closing shafts, and a transmitting means 20 which transmits the drive of the first shaft to the second shaft, wherein the operations of the clutches and brakes are controlled to perform the opening/closing drive of the door, and the predetermined door opening/ closing motions are conducted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing control device for automatically opening / closing a vehicle door having two opening / closing shafts, and more particularly to a door opening / closing drive mechanism which is simple and lightweight.

[0002]

2. Description of the Related Art At present, the opening and closing of doors on sightseeing buses or route buses is automatic. Also, in taxis, the door on the left side of the rear seat is automatically opened and closed. However, although the taxi door is an automatic door, the fact is that it is operated manually by the driver. By the way, in response to the recent trend toward higher-grade passenger cars, there has been a sudden request to automatically open and close the doors of passenger cars by a servo motor (Japanese Patent Laid-Open No. 58-58).
-76669 gazette). Further, the automatic opening / closing of the door is not a simple one such as simply attaching an actuator to the door, but the opening / closing structure itself of the door is largely changed, and the door is opened / closed by two actuators. Therefore, the opening / closing control becomes very complicated.

An example of an opening / closing control device for a vehicle door having such two opening / closing shafts is shown in FIG. This vehicle door opening / closing control device generally includes a link portion 52 that connects the door 50 and the vehicle body 51, a first drive unit 60 that drives a first shaft attached to the vehicle body 51 side, and a first drive unit 60 that is attached to the door 50 side. And a second drive unit 70 for driving the second axis.

FIG. 9 is a schematic block diagram of a control system of the vehicle door opening / closing control device shown in FIG. The drive unit 60 for driving the first shaft includes a drive means 61 for driving the first shaft, a brake 63 for forcibly stopping the movement of the drive means 61 to maintain the open / closed state of the door, and mainly the opening / closing of the door. It is composed of an encoder 62 and the like that obtains a pulse signal for controlling the speed. Similarly, the drive unit 70 that drives the second shaft also includes a drive unit 71, a brake 73, and
And an encoder 72 and the like. Here, the driving means 61, 71 are servomotors with reduction gears.

The encoder pulse from the encoder 62 is used to calculate the deviation of the 1-axis target value output from the controller 85. Similarly, the encoder pulse from the encoder 72 calculates the deviation of the 2-axis target value. It is used to D / C servo driver 75 and D /
The C servo driver 80 outputs a motor current corresponding to the input deviation and drives the drive unit 60 or 70.
Control the behavior of. Further, front limit switches 95, 96 and rear limit switches 97, 98 for overrun detection are provided independently for each axis, and the controller 85 uses various switches and obstacles for confirming safety at the time of opening and closing. The opening / closing of the door is generally controlled based on an input from a sensor 90 such as an object detection sensor.

[0006]

However, in the vehicle door opening / closing control device having such two opening / closing shafts, the driving means is installed in each of the two opening / closing shafts, and the two opening / closing shafts are previously provided. The door is opened and closed by being driven to the set target position. Therefore, since the driving means such as a motor is installed not only on the vehicle body side but also on the door side, the weight of the door itself is significantly increased, and the space occupied by such a door in the vehicle is considerably required. Become. Further, not only the driving means but also the servo driver is required for each opening / closing axis, which causes a problem that the weight of the entire vehicle is increased together with the increase of the door weight.

The present invention has been made in view of the above problems, and a first object of the present invention is to provide one driving means in a vehicle door opening / closing control device having two opening / closing shafts. Accordingly, it is an object of the present invention to provide a simple, small-sized and light-weight device capable of performing a predetermined door opening / closing operation.
A second object of the present invention is to provide a vehicle door opening / closing control device in which a driving means is provided only on the vehicle body side and the door itself is small and lightweight.

[0008]

According to the present invention for achieving the above object, a door is attached to a vehicle body through a link portion, a connecting portion between the vehicle body and the link portion, and the door and the link. An opening and closing control device for automatically opening and closing a vehicle door in which two opening and closing shafts are provided at a connecting portion with the section so that the doors can be opened and closed in a predetermined manner, and one driving means for driving the opening and closing shafts; Restraint means for restraining the rotational movement of the opening / closing shaft, coupling means for connecting the output shaft of the driving means to the opening / closing shaft, transmission means for transmitting the drive of one opening / closing shaft to the other opening / closing shaft, and the driving means. When the door is opened and closed by means of the above-mentioned method, it has a control means capable of performing a predetermined predetermined door opening and closing drive by controlling the operation of the restraining means and the coupling means. To A switching controller for dual door. The drive means may be provided on the vehicle body side.

[0009]

According to the present invention thus constructed, when the door is opened and closed, the output shaft of the drive means and the opening and closing shaft on the vehicle body side for opening and closing the link part are connected when opening and closing the link part. When opening and closing the door, the output shaft of the drive means and the door-side opening and closing shaft for opening and closing the door are connected via the transmission means. Further, when such a door opening / closing operation is performed, a predetermined predetermined door opening / closing drive is performed by simultaneously turning on / off the restraining means. This makes it possible to easily perform a predetermined door opening / closing drive by using one drive unit. Further, if the drive means is provided only on the vehicle body side, the door itself becomes smaller and lighter.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 is a schematic configuration diagram of a vehicle door opening / closing control device according to an embodiment of the present invention, FIG. 2 is an enlarged perspective view of a door drive system of the device shown in FIG. 1, and FIG. The same members as those described above are designated by the same reference numerals, and the description thereof is partially omitted. The DC power source 1 is a power source for automatically opening and closing the door, and normally a battery mounted on the vehicle is used. Door open switch 6a, 6
The b and door closing switches 7a and 7b are provided on the door outside handle and the door inside handle (not shown), respectively, and are switches that are operated when the door is automatically opened and closed. The remote control 8
Mainly for opening and closing the door remotely,
The signal from there is received by the receiver 9 mounted on the vehicle.

One door is opened and closed by one driving means mounted on the vehicle body side, and the driving means 10 has a motor 12 and a speed reducer 11 for reducing the rotation of the motor. . The operation of the drive unit 10 is controlled by the controller 45 (corresponding to the control unit) via the drive circuit 35. The controller 45 comprehensively controls opening and closing of the door based on inputs from various switches and sensors 90.

The schematic structure of the drive mechanism for the door is as shown in FIG. 2, and the door 50 and the vehicle body 51 side have the arm 5
2 (corresponding to a link portion). The first shaft 3 attached to the vehicle body 51 side functions to rotate the arm 52 around this axis, and the second shaft 4 attached to the door 50 side attaches the door 50 to the arm 52. It works to rotate around this axis. The limit switches 31 and 32 detect the opening / closing position of the arm 52, and the limit switch 41,
Reference numerals 42 and 43 detect the opening / closing position of the door 50. Further, these are arranged as shown in FIG. Note that this detection is not limited to the limit switch, and for example, a proximity sensor or the like may be used, and the installation position and the number can be appropriately changed.

The first shaft 3 is an arm rotating shaft 3a for rotating the arm 52 and an output shaft 3b of the driving means 10.
And a transmission shaft 3c for driving the second shaft 4 via the transmission means 20. Further, the arm rotating shaft 3a is turned on by the brake 14 (corresponding to a restraining means) so that the vehicle body 5
Fixed to 1 or clutch 15 (corresponding to coupling means)
The brake 14 and the clutch 15 are arranged so as to be turned on and connected to the output shaft 3b. Further, the transmission shaft 3c is connected to the vehicle body 51 by turning on the brake 17.
The brake 17 and the clutch 1 so that the clutch 16 can be fixed to the output shaft 3b or the clutch 16 can be turned on and coupled to the output shaft 3b.
6 are arranged. Here, the clutch and the brake utilize electromagnetic force. The transmission means 20 includes an input pulley 21 provided on the transmission shaft 3c, an output pulley 22 provided on the second shaft 4, and a timing belt 23 hung on both pulleys. The transmission shaft 3c is driven by the second shaft. 4 is transmitted. In addition, the input pulley 21
The output pulley 22 and the output pulley 22 are toothed pulleys, and the number of teeth thereof is set to be the same.

When the door is opened and closed, the clutch 15 and the brake 17 are turned on, and the clutch 16 and the brake 1 are turned on.
4 is turned off to drive the driving means 10, the arm 52 opens as the driving means 10 rotates. On the other hand, the door 50, by the action of the timing belt 23,
The arm 52 is rotated in the opposite direction by the same angle. Because the brake 17 is turned on, the pulley 21
Is fixed to the vehicle body 51 side, and the output pulley 22 makes a planetary motion around the input pulley 21. Therefore, in this case, the door 50 can be opened parallel to the vehicle body.
The tooth number ratio between the input pulley 21 and the output pulley 22 is not limited to 1: 1 and may be changed as appropriate. Further, when the clutch 16 and the brake 14 are turned on and the clutch 15 and the brake 17 are turned off to drive the drive means 10, the arm 52 is fixed at the open / close position as it is, and the rotation of the drive means 10 is rotated by the timing belt 23. Thus, the door 50 is transmitted to the second shaft 4 and only the door 50 can be opened.

Such a drive mechanism is provided independently for each door on both sides of the vehicle. Further, since the first shaft 3 and the second shaft 4 move by the mechanism as described above, it is possible to open and close the door in a manner different from the conventional one by presetting the final rotational position of each shaft. Become. For example, it is possible to open the door in the above-described manner, that is, in a manner substantially parallel to the vehicle body, and this makes it very easy to get on and off in a narrow space.

FIG. 3 is a schematic block diagram of the control system of the apparatus shown in FIG. 1, in which the configuration particularly relevant to the present invention is extracted from that shown in FIG. In this figure, the same members as those in FIG. 1 are designated by the same reference numerals, and the description of their functions will be omitted. The open / closed position of the arm 52 is detected by the limit switches 31 and 32, and the open / closed position of the door 50 is detected by the limit switches 41, 4.
The detection signals detected by 2 and 43 are input to the controller 45. When the door open switch 6a, 6b or the door close switch 7a, 7b is turned on, the controller 45 grasps the current position in the door opening / closing operation from the detection signal of the limit switch, and based on a preset operation pattern. Thus, the operation of the clutches 15 and 16 and the brakes 14 and 17 is controlled, and the drive means 10 is operated via the drive circuit 35 to open / close the door. In addition, the controller 45 is also provided with sensors 9 such as an obstacle detection sensor for confirming safety at the time of opening and closing.
The input from 0 is also processed, and the opening and closing of the door is comprehensively controlled.

Next, the door opening operation of the vehicle door opening / closing control apparatus of this embodiment will be described based on the control flow shown in FIG. When the door opening switch 6a or 6b is turned on, the door opening operation process shown in FIG. 4 is started. This door opening operation processing represents processing when the door is initially completely closed. At this time, as shown in FIG.
Limit switch 31 for detecting the open / closed position of arm 52
And limit switch 4 for detecting the open / closed position of door 50
1 is in the on state, that is, the state shown in FIG. In step S11, the controller 45 first outputs a signal for turning on the clutch 15 and the brake 17.
As a result, the arm rotation shaft 3a is coupled to the output shaft 3b of the drive means 10, and the transmission shaft 3c is fixed to the vehicle body 51. Next, in step S12, the controller 45
Output a signal to turn off the clutch 16 and the brake 14,
The output of the driving means 10 is set to be transmitted only to the arm rotation shaft 3a. Then, in step S13, when the controller 45 drives the driving means 10 via the driving circuit 35, the arm 52 starts to open as the driving means 10 rotates. At the same time, the door 50 causes the arm 52 to move by the action of the timing belt 23 as described above.
And rotate the same angle in the opposite direction. Therefore, the door 50 is opened substantially parallel to the vehicle body.

When the driving means 10 is driven in step S13, the driving means 10 continues to be driven until the arm 52 is opened and the limit switch 32 is turned on. As described above, the door 50 is simultaneously rotated in the direction opposite to the arm 52 so that the limit switch 32 is turned on and the limit switch 43 is turned on at the same time (steps S13 and S14). When detecting that the limit switches 32 and 43 are turned on in step S14, the controller 45 stops the driving means 10 via the driving circuit 35 (step S15). The open / closed state of the door at this time is shown in FIG. 6 (b). It is also possible to end the door opening operation processing here and form one operation pattern.

Next, the controller 45 causes the clutch 16
And a signal for turning on the brake 14 is output. As a result, the arm 52 and the door 50 are temporarily stopped, and the transmission shaft 3c
Is connected to the output shaft 3b of the drive means 10, and the arm rotation shaft 3a is fixed to the vehicle body 51. In step S17, the controller 45 outputs a signal for turning off the clutch 15 and the brake 17, and sets so that the output of the driving means 10 is transmitted only to the transmission shaft 3c. And step S1
At 8, when the controller 45 drives the driving means 10 via the driving circuit 35, the rotation of the transmission shaft 3c causes the transmission means 2 to rotate.
0 is transmitted to the second shaft, and only the door 50 starts to open as the drive means 10 rotates.

When the driving means 10 is driven in step S18, the arm 52 is held in the same position, and the driving means 10 is continuously driven until only the door 50 is opened and the limit switch 42 is turned on (step S18). ,
S19). When the controller 45 detects that the limit switch 42 is turned on in step S19, the controller 45 stops the drive means 10 via the drive circuit 35 (step S20). Further, the controller 45 performs the step S2.
At 1, the brakes 14 and 17 are turned on to hold the arm 52 and door 50 in that position. The open / closed state of the door at this time is shown in FIG. In this way, the door opening operation processing ends. Note that the door closing operation processing is performed by roughly reversing the above-described opening operation processing sequence.

As described above, the vehicle door opening / closing control device according to the present embodiment includes one drive means for driving the two opening / closing shafts,
When a door is opened / closed, the door has an opening / closing shaft having a brake that restrains the rotational movement of the opening / closing shaft, a clutch that connects the output shaft of the driving unit to the opening / closing shaft, and a transmission unit that transmits the drive of the first shaft to the second shaft. Since the operation of the clutch and the brake is controlled so as to perform a predetermined door opening / closing drive, a drive means is not provided on the door side, and one drive means on the vehicle body side is used. With a simple mechanism, it is possible to perform a predetermined door opening / closing operation such as opening the door substantially parallel to the vehicle body. Further, the weight of the door itself can be reduced, and the space occupied by the door in the vehicle can be saved.

FIG. 7 is an enlarged perspective view of a door drive system according to another embodiment. In this embodiment, the transmission means 2
Reference numeral 0 includes an input bevel gear 24 provided on the transmission shaft 3c, an output bevel gear 25 provided on the second shaft 4, and an idle gear 26 that meshes with these bevel gears. With such a configuration, since the allowable transmission torque is increased and the rigidity is increased, the same effect as above can be obtained even when the door is large. The present invention is not limited to the above-described embodiments, but can be variously modified within the scope of the claims. For example, as the driving means, in the embodiment, a normal motor with a speed reducer is used, and the door opening / closing position is detected by the limit switch, and the door opening / closing operation is performed. It goes without saying that the door can also be opened and closed. Further, the transmission means may be driven by a chain and can be changed as appropriate.

[0023]

As described above, the vehicle door opening / closing control device of the present invention includes one drive means for driving two opening / closing shafts, a restraining means for restraining the rotational movement of the opening / closing shafts, and a driving means. Has a coupling means for coupling the output shaft to the opening / closing shaft and a transmission means for transmitting the drive of one opening / closing shaft to the other opening / closing shaft, and when the door is driven to open / close, the coupling means and the restraining means. Since a predetermined door opening / closing drive is performed by controlling the operation of the door and the door, a predetermined mechanism such as a door opening / closing operation that opens the door substantially in parallel with the vehicle body can be performed by a single drive means. The action can be performed. Further, the weight of the device and the space saving can be achieved. Furthermore, since the drive means is provided only on the vehicle body side,
The effect is that the door itself is small and lightweight.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a vehicle door opening / closing control device according to an embodiment of the present invention.

2 is an enlarged perspective view of a door drive system of the apparatus shown in FIG. 1. FIG.

FIG. 3 is a schematic block diagram of a control system of the apparatus shown in FIG.

4 is a control flow of door opening operation processing of the apparatus shown in FIG. 1. FIG.

5 is a layout of limit switches of the device shown in FIG. 1. FIG.

FIG. 6 is a diagram showing the opening operation of the door step by step according to the control flow shown in FIG.

FIG. 7 is an enlarged perspective view of a drive system of a door according to another embodiment.

FIG. 8 is a schematic configuration diagram of a conventional vehicle door opening / closing control device.

9 is a schematic block diagram of a control system of the apparatus shown in FIG.

[Explanation of symbols]

 3 ... 1st shaft (opening / closing shaft) 4 ... 2nd shaft (opening / closing shaft) 10 ... Driving means 20 ... Transmission means 14, 17 ... Brake (restraining means) 15, 16 ... Clutch (coupling means) 45, 85 ... Controller ( Control means) 50 ... Door 51 ... Vehicle body 52 ... Arm (link portion)

Claims (2)

[Claims] 1. A predetermined mode in which a door is attached to a vehicle body via a link portion, and two opening / closing shafts are provided at a connecting portion between the vehicle body and the link portion and a connecting portion between the door and the link portion. An opening and closing control device for automatically opening and closing a vehicle door that can be opened and closed by means of: one driving means for driving the opening and closing shaft; a restraining means for restraining a rotational operation of the opening and closing shaft; and an output of the driving means. A coupling means for coupling a shaft to the opening / closing shaft, a transmission means for transmitting the drive of one opening / closing shaft to the other opening / closing shaft, and the binding means and the coupling means for driving the door to open / close by the driving means. And a control means capable of performing a predetermined door opening / closing drive by controlling the operation of the vehicle door opening / closing control apparatus. 2. The vehicle door opening / closing control device according to claim 1, wherein the drive means is provided on the vehicle body side.