JP2715747B2 - Automotive door opening and closing 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 a vehicle door opening and closing device for opening and closing a door mounted on a vehicle body.

[0002]

2. Description of the Related Art In a normal automobile door, a hinge is attached to a front end of a door opening formed in an automobile body, and the door is opened and closed around the hinge. Therefore, the door can be opened and closed around its front end, and is fastened to the vehicle body by a lock device provided at the rear end of the door. The lock device generally includes a striker member attached to the vehicle body side and a latch member attached to the door side and meshing with the striker member. Attempts have been made to automatically open and close such an automobile door by a motor without manually opening and closing the door (JP-A-58-76669). In this case,
As shown in FIG. 9A, the operation of the door opening / closing motor 1 is controlled by a control signal from the servo driver 2, and the rotation of the motor 1 is fed back to the servo driver 2 by the encoder 3. Is done.
Thus, when the door is opened and closed by the motor 1,
It is necessary to increase the size of the motor 1 and use a motor having a large output. This is because a weather strip is stuck around the door, and when the door is fully closed from the half-door position, the door must be closed against the reaction force of the weather strip. . FIG. 10 shows the relationship between the closing torque of the door when the door is closed and the opening / closing angle of the door.

Therefore, an automatic closure has been developed in which a final closing operation of the door when the door is closed is performed by a motor, as disclosed in, for example, Japanese Patent Application Laid-Open No. 58-76669. This auto closure is a device in which after the door is closed to a position where the striker member and the latch member can be engaged by the closing operation, the latch member is rotated by the closure motor to close the door to the fully closed position. is there. In this case, as shown in FIG. 9B, a door closing switch 4 for detecting that the auto closure, that is, the latch member has been closed to a position where it can be engaged with the striker member, that is, a half door position, A fully closed position detection switch 5 for detecting that the door has been fully closed is provided. After the door is in the half door position, the switch 6 is driven by the closure motor 7. As described above, when the latch member is driven by the closure motor 7, the closing operation of the door is performed at the free end of the door, so that the door is opened and closed more than in the case shown in FIG. 9A. It is possible to make the door opening / closing motor 1 itself relatively small. However, when the closure motor 7 operates, the door opening / closing motor 1 is stopped, and it is necessary to operate the closure motor 7 against viscous resistance or the like of a speed reducer incorporated therein. There was a limit to downsizing itself.

[0004]

However, considering the reduction of the weight of the vehicle body and the degree of freedom of the design of the vehicle body, it is necessary to reduce the size and weight of these motors as much as possible in order to automate the opening and closing of the door. It was a problem to be solved. Accordingly, the present invention provides a door closing operation after both the door comes into contact with the weather strip by closing the door with both the door driving motor and the closure motor, thereby providing the door opening / closing motor and the door lock. It is an object of the present invention to make it possible to reduce the size of a closure motor.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a door which is openably and closably mounted on a vehicle body and covers an opening formed in the vehicle body, and a door opening and closing mechanism for opening and closing the door. Motor, a closure that locks the door with the striker, a half-door position detecting means that detects that the striker and the closure are at a half-door position where the closure can be engaged, and the closure completely closes the door. Fully closed position detecting means for detecting that the door has been operated to the closed position; a closure motor for driving the closure between the half door position and the fully closed position; and closing and moving the door to the half door position. When the door opening and closing motor is driven at a predetermined speed,
Control means for driving the door opening / closing motor with a predetermined torque when the door is closed and moved from the half-door position to the fully-closed position, and when the door is closed from the half-door position to the fully-closed position. The present invention provides a door opening / closing control device for an automobile, wherein the door is driven by the door opening / closing motor and the closure motor. The present invention also provides a door that is attached to the vehicle body so as to be openable and closable, and covers an opening formed in the vehicle body.
A door opening / closing motor that opens and closes the door, a closure that locks the door with a striker, and a half door position detection unit that detects that the striker and the closure have reached a half door position where they can be engaged. Fully closed position detecting means for detecting that the closure has moved the door to the fully closed position; a closure motor for driving the closure motor between the half door position and the fully closed position; and A servo driver that drives the opening / closing motor and the closure motor, respectively, and the door has a connection circuit that sends a drive signal from the servo driver to the closure motor in the half-door position and the fully closed position, When the door is closed from the half-door position to the fully-closed position, the door opening / closing motor and the A switching controller for a door for a motor vehicle, characterized in that so as to drive the door by a jar motor.

[0006]

According to the present invention, the door is driven by the motor for opening and closing the door from the opened state to the half-door position. And when it comes to the half door position,
The automatic closure is operated, and the door is closed by the closure motor, and the door is also closed by the door opening / closing motor. As described above, since the door is closed by both motors, the size of each motor is reduced. From the half-door position to the fully-closed position, the door opening / closing motor is driven to close the door with a predetermined torque. The door opening / closing motor and the closure motor are driven by the same servo driver.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments of the present invention. FIG. 1 is a diagram showing an automobile body W in which a door opening / closing control device of the present invention is incorporated. The body W is provided with one door 10 and 11 on the left and right, respectively. Each of the doors 10 and 11 is rotatably attached to a tip of a hinge arm 12 whose one end is rotatably attached to a front pillar of the vehicle body W. FIG. 2 is a diagram showing a right portion of the vehicle W shown in FIG. 1, and the structure of the hinge arm 12 is shown in FIG. Bearings 13 are vertically screwed to a front pillar F of the vehicle body W, and a vehicle body-side support shaft 14 provided at one end of the hinge arm 12 is rotatably supported by these bearings 13. ing. A door-side support shaft 15 is provided at the other end of the hinge arm 12, and the door-side support shaft 15 is a bearing 1 that is screwed to the door 11.
6 rotatably supported. A weather strip (not shown) is attached to an outer peripheral portion of the door 11 in order to secure airtightness and watertightness when the door 11 is closed.

As shown in FIG. 2, a first door opening / closing motor 21 is attached to the vehicle body W by a bracket 17, and a drive shaft of the motor 21 is fitted into the vehicle body-side support shaft 14 to drive the vehicle. The shaft is integrated with the vehicle body-side support shaft 14. On the other hand, a door opening / closing second motor 22 is attached to the door 11 by a bracket 18, and a driving gear 23 fixed to a driving shaft of the motor 22 is connected to the door supporting shaft 1.
5 and a driven gear 24 integrated therewith. Each motor 21, 22 is therefore provided with a hinge arm 12 by driving both motors 21, 22.
By pivoting the door 11 with respect to the vehicle body W and pivoting the door 11 with respect to the hinge arm 12,
Is automatically opened and closed. When the door 12 is closed, the door opening S formed in the vehicle body W is closed by the door 12. The left door 10 shown in FIG. 1 automatically opens and closes by the same structure. FIG. 1 shows a vehicle W of a type in which two doors are provided on the left and right, and a total of four
Each door of a vehicle body of a type having two doors may have a similar structure and be automatically opened and closed by a motor.

When the door 11 is closed, a striker member 25 is attached to the quarter pillar Q of the vehicle body W to fasten the door 11 and the vehicle body W to each other, and meshes with the striker member 25. An automatic closure section 26 is formed at the rear end of the door 11. As shown in FIG. 2, a latch member 27 is provided in the auto-closure section 26. When the door 11 is closed, the hinge arm 12 and the door 11 are locked together with the striker member 25,
The front end of the vehicle and the vehicle body W, or
The locks 4 and 15 may be locked.

FIG. 4 is a view showing the structure of the latch member 27 in the auto closure section 26.
Is formed with an engaging portion 28 that engages with the striker member 25. When the door 11 is closed by the driving of the motors 21 and 22 and the striker member 25 reaches the position of the engaging portion 28 of the latch member 27, the latch member 27 is slightly rotated, and two points in FIG. As shown by the dashed line, it is a half door position, that is, a position where the latch member and the striker member 25 can be engaged. In this position, a reaction force of the weather strip is applied to the door 11. The latch member 27 is driven by the closure motor 30. When the latch member 27 rotates to the fully closed position as shown in FIG. 4B, the closing operation of the door 11 is completed. When the door 11 is opened from the fully closed position, the latch member 27 is rotated in the opposite direction.

A half door position detection switch 31 for detecting that the latch member 27 has reached the half door position, and a fully closed position detection switch 32 for detecting that the latch member 27 has reached the door fully closed position. Are arranged around the latch member 27.

FIG. 5 is a diagram showing a door opening / closing control circuit according to an embodiment of the present invention. A control unit 41 comprising a CPU and the like includes a door opening / closing command switch 42 and a half door position detecting switch described above. 31, a signal from a fully closed position detection switch 32 is input. A memory 43 is connected to the control unit 41, and in the memory 43,
The data of the door opening / closing speed and the data of the door opening / closing torque are stored.

As shown in FIG. 5, the operation of the first motor 21 for opening and closing the door is controlled by a control signal from a servo driver 51, and the rotation speed of the motor 21 is controlled by an encoder 52. Will be fed back. To the servo driver 51, a speed command signal 53, a torque command signal 54, and a speed / torque switching signal 55 are sent from the control unit 41, and the first motor 21 is driven by the switching signal 55. 11 is driven to a predetermined speed,
Alternatively, whether to drive the door 11 with a predetermined torque is selected. When the motor 21 is driven with a predetermined torque,
Whether or not the motor 21 is driven with the set torque is detected by a feedback signal sent from the current probe 56 to the servo driver 51. Also, the first
Whether or not the motor 21 is driven at a predetermined speed is detected by a feedback signal from the encoder 52.

The operation of the second door driving motor 22 is controlled by a servo driver 61. The servo driver 61 has the same configuration as that described above.
A speed command signal 63, a torque command signal 64, and a speed torque switching signal 65 are sent. Also,
The rotation speed of the motor 22 is detected by the encoder 62 and fed back to the servo driver 61, and the current value sent to the second motor 22 is fed back by the current probe 66. The above-described closure motor 30 is turned on / off by a power supply 72 in response to an operation command signal 71 from a control unit 41, and rotates in a predetermined direction.

FIG. 6 is a flowchart showing a procedure for controlling the opening and closing of the door using the control circuit shown in FIG. In the state where the door 11 is open, step S1
If the switch for closing the door is turned on in step S2, the speed control mode is set in step S2, and the respective servo drivers 51 and 61 shown in FIG.
Then, speed command signals 53 and 63 for closing the door 11 are sent from the control unit 41. The speed command signals 53, 63
Is output based on the speed data taught and stored in the memory 43 in advance. In this manner, the door 11 is driven in the closing direction. When the door 11 comes into contact with the latch member 27 and the striker member 25, the half door position detection switch 31 is turned on, and this is determined in step S4. Is detected.

As a result, the torque control mode is set in step S5, the torque command signals 54 and 64 are output from the control unit 41 to the servo drivers 51 and 61, and the closure operation command signal 71 is output in step S6. Is output. Therefore, the latch member 27 is
FIG. 4B shows the position indicated by the two-dot chain line in FIG.
Is rotated toward the position shown in FIG.
, The motors 21 and 22 are driven at a predetermined torque based on the torque data stored in the memory 43. However, when the half door detection switch 31 is turned on, the operation of the second motor 22 may be stopped by the brake, and the door may be closed only by the first motor 21. When the fully closed position detection switch 32 is turned on, the closing operation of the door 11 is completed. Thus, from the half-door position where the reaction force of the weather strip acts to the fully closed position, in accordance with the drive of the closure motor 30,
Since the motor is also driven by the motors 21 and 22 for driving the door 11 itself, it is possible to make each motor small and low in output. Furthermore, each motor 21, 22,
30 can be optimally distributed, and the power can be minimized.

FIG. 7 is a diagram showing another type of door opening / closing control circuit according to the present invention. Members common to those in FIG. 5 are denoted by the same reference numerals. In this case, the operations of the door opening / closing first motor 21 and the closure motor 30 are controlled by the servo driver 51. The operation of the second door opening / closing second motor 22 is controlled by the servo driver 61 in the same manner as in the case shown in FIG. 5, and each of the motors 21, 22 and 30 is controlled based on the speed data stored in the memory 43. Operated at speed.

The closure motor 30 is connected to the servo driver 5 via a closure connection circuit 81 and a phase compensation circuit 82.
1 connected. A circuit connection signal is sent from the control unit 41 to the closure connection circuit 81.
The phase compensation circuit 82 has a function of restricting a current fluctuation when the closure connection circuit 81 is connected and causing interference.

FIG. 8 is a flowchart showing a procedure for controlling the opening and closing of the door using the control circuit shown in FIG. In the state where the door 11 is open, step S1
If the switch for closing the door is turned on in step S1, the controller 41 sends speed command signals 53 and 63 for closing the door 11 to the respective servo drivers 51 and 61 shown in FIG. Can be The speed command signals 53 and 63 are output based on speed data previously taught and stored in the memory 43. In this way, the door 11 is driven in the closing direction, and the door 11 is moved to the latch member 27 and the striker member 25.
Contact with the door, the half door position detection switch 3
1 is turned on, and this is detected in step S13.

As a result, in step S14, the brake incorporated in the second door opening / closing motor 22 is operated, and in step S15, the closure operation command signal 7 is output.
1 is output. Therefore, the latch member 27 is
FIG. 4B shows the position indicated by the two-dot chain line in FIG.
Is rotated toward the position shown in FIG.
In 6, the motor 21 is driven at a predetermined speed based on the speed data stored in the memory 43.
The speed value at this time is set to such an extent that the servo driver 51 does not detect the moving torque. If the fully closed position detection switch 32 is turned on, YES is determined in the step S17, and the closing operation of the door 11 is completed. As described above, from the half-door position where the reaction force of the weather strip acts to the fully-closed position, the motor 21 for driving the door 11 itself in accordance with the driving of the closure motor 30.
Also drives the door, so that each motor can be made small and low output.

In the illustrated embodiment, as shown in FIG. 1, the doors 10 and 11 are respectively attached to the vehicle body W via the arms 12, and when the doors are opened, the occupant's getting on and off space is sufficiently secured. However, the present invention can be applied to a case in which the door is directly openably and closably attached to the vehicle body.

[0022]

As described above, according to the present invention, the door drive motor for closing the door and the latch drive member for driving the latch member are provided from the half door position to the fully closed position. Since the door is closed together with the door lock by the closure motor, the size of each motor can be reduced, and the power to the entire motor can be minimized.

[Brief description of the drawings]

FIG. 1 is a plan view showing an automobile body according to one embodiment of the present invention;

FIG. 2 is a rear view showing details of the hinge arm shown in FIG. 1;

FIG. 3 is a perspective view showing a hinge arm;

FIG. 4 is a front view showing an operating state of a latch member;

FIG. 5 is a block diagram showing a door opening / closing control circuit;

6 is a flowchart showing an operation state of the control circuit shown in FIG. 5,

FIG. 7 is a block diagram showing another type of control circuit;

8 is a flowchart showing an operation state of the control circuit shown in FIG. 7,

FIG. 9 is a block diagram showing a conventional door opening / closing control device;

FIG. 10 is a graph showing a relationship between a load torque acting on a door and an opening / closing angle of the door.

[Explanation of symbols]

10, 11 ... door, 12 ... hinge arm, 14 ... body side support shaft, 15 ... door side support shaft, 21 ...
Arm driving motor, 22: Door driving motor, 25: Striker member, 26: Auto closure, 27: Latch member, 3
0: closure motor, 31: half door detection switch,
32: Fully closed position detection switch, 41: control unit,
51, 61 ... servo driver, 81 ...
Connection circuit.

Claims (2)

(57) [Claims] A door that is openably and closably mounted on the vehicle body and covers an opening formed in the vehicle body; a door opening and closing motor that opens and closes the door; a closure that meshes with the striker to lock the door; A half-door position detecting means for detecting that the striker and the closure have come to a half-door position where they can be engaged; a fully-closed position detecting means for detecting that the closure has operated the door to a fully-closed position; A closure motor that drives the closure between the half-door position and the fully-closed position, and when closing the door to the half-door position, drives the door opening and closing motor at a predetermined speed; When closing the door from the half door position to the fully closed position, the door opening / closing motor is driven with a predetermined torque. When the door is closed from the half-door position to the fully-closed position,
A door opening / closing control device for an automobile, wherein the door is driven by the door opening / closing motor and the closure motor. A door that is openably and closably mounted on the vehicle body and covers an opening formed in the vehicle body; a door opening and closing motor that opens and closes the door; a closure that meshes with the striker to lock the door; A half-door position detecting means for detecting that the striker and the closure have come to a half-door position where they can be engaged; a fully-closed position detecting means for detecting that the closure has operated the door to a fully-closed position; A closure motor that drives the closure motor between the half-door position and the fully-closed position; a servo driver that drives the door opening / closing motor and the closure motor; In the position and the fully closed position, a drive signal from the servo driver is sent to the closure motor. And a connection circuit, when said door is closed to the fully closed position from the half door position,
A door opening / closing control device for an automobile, wherein the door is driven by the door opening / closing motor and the closure motor.