JPH0592723A - Opening/closing roof drive control device - Google Patents

Abstract

PURPOSE:To prevent shocks when an opening/closing roof is closed without prolonging the time required to close the opening/closing roof extensively. CONSTITUTION:There is provided the third detecting switch 73 to detect that a roof is closed to the specified halfway position. While the roof is closed from the detecting timepoint by the detecting switch 73 to closing timepoint of the roof, a deceleration control part 68 drops the driving voltage of a driving motor 67A, and reduces the roof-closing speed by decreasing the driving hydraulic pressure of the roof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive control device for an opening / closing roof, and more particularly to a drive control device suitable for an opening / closing roof of an automobile.

[0002]

2. Description of the Related Art Conventionally, as a drive control device for an opening / closing roof of an automobile, for example, a device for automatically opening / closing a hood type opening / closing roof using a hydraulic cylinder is known.

In such a conventional apparatus, a hydraulic pump generates a constant hydraulic pressure and supplies the constant hydraulic pressure to a hydraulic cylinder to expand and contract to open and close the open / close roof. Therefore, the output of the hydraulic cylinder becomes constant, and the opening / closing roof opens / closes at a speed according to the load such as the weight of the opening / closing roof.

[0004]

By the way, in the hood type opening / closing roof of an automobile, the center of gravity of the opening / closing roof is displaced toward the closing direction side in the latter stage of the closing operation so that the opening / closing roof is driven in the closing direction. The load will be reduced.

Therefore, in the above-mentioned conventional apparatus, the closing speed of the opening / closing roof suddenly increases in the latter stage of the closing operation of the opening / closing roof, and the opening / closing roof collides strongly with the frame portion above the windshield of the vehicle body, causing uncomfortable feeling. There was a problem of giving a shock.

An object of the present invention is to provide a drive control device for an opening / closing roof which can prevent an impact when the opening / closing roof is closed without significantly extending the driving time required for closing the opening / closing roof. It is in.

[0007]

A drive control device for an opening / closing roof according to the present invention is a drive control device for an opening / closing roof, which drives and controls the opening / closing roof in at least a closing direction, wherein the opening / closing roof is closed to a predetermined midway position. And a deceleration control means for decelerating the driving speed of the opening / closing roof in the closing direction when the detection means outputs the detection signal. ..

[0008]

The opening / closing roof drive control device of the present invention greatly reduces the time required to close the opening / closing roof by reducing the closing speed of the opening / closing roof from the time when the opening / closing roof is closed to a predetermined midway position. Without extending to
Prevents impact when the open / close roof is closed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

This embodiment is an example of application as a drive control device for a hood type opening / closing roof of an automobile. Therefore, first, the opening / closing method of the hood type opening / closing roof will be briefly described (see FIGS. 1 and 2).

From the open roof state shown in FIG.
To close (see (b) in the figure), first, the roof cover 2 provided at the rear part of the vehicle body is rotated in the direction of arrow A ₁ in the (b) figure to open the roof storage space at the rear part of the vehicle body. The roof 1 folded in the storage space is shown in FIG.
After extending in the direction of arrow B ₁ in (c) and passing through the intermediate state of FIG. 2 (d), mount the front portion 1A of the roof 1 on the frame 3 above the windshield as shown in FIG. 2 (a). To lock. After that, after rotating the rear portion 1B of the roof 1 located above the roof storage space in the direction of arrow C ₁ in FIG. 2 (b), the roof cover 2 is removed as shown in FIG. 2 (c). Rotate in the direction of arrow D ₁ to close the roof storage space. After that, as shown in FIG. 2D, the roof 1
The rear portion 1B is rotated in the direction of the arrow C ₂ to cover the upper portion of the roof cover 2 to bring the roof 1 into the closed roof state, and the closing operation of the roof 1 is completed.

When the roof 1 is opened, the operation procedure is the reverse of the above.

In order to open and close the roof 1 in this manner, the roof 1 and the roof cover 2 are provided with a drive mechanism for driving them and a control mechanism for controlling these drive mechanisms. Therefore, in the following, the former A. “Drive mechanism” and the latter B. It will be described separately as “control mechanism”.

A. "Drive Mechanism" This drive mechanism includes A-1. "Roof main drive mechanism", A-2. "Auxiliary drive mechanism for roof", A-3. There is a "roof cover drive mechanism".

A-1. "Main drive mechanism for roof" This drive mechanism drives the entire roof 1 except the rear portion 1B of the roof 1 and is provided symmetrically on both left and right sides of the roof 1. ..

First, the roof 1 itself has a structure in which a hood is attached to the surface of a foldable skeleton, and the skeleton is provided between vertical beams 11 (see FIG. 3) located on the left and right of the roof 1. It has a configuration in which a horizontal beam (not shown) is bridged. As shown in FIG. 3, the longitudinal beam 11 includes first, second and third beam members 11A, 11B and 11C.
Are connected to each other by connecting pins 11D and 11E so as to be rotatable relative to each other.
The lower end of A is fixed to the vehicle body side fixing member 13 by the horizontal pin 12.
Is rotatably supported in a fixed position.

The tip of the piston rod 21A of the first hydraulic cylinder 21 is rotatably pin-coupled to the arm portion 11F (see FIG. 3) at the lower end of the first beam member 11A.
The lower end of the cylinder 21B of the hydraulic cylinder 21 is rotatably pin-connected to a fixed position of the vehicle body. Therefore,
By the expansion and contraction operation of the hydraulic cylinder 21, the first beam member 11A moves around the pin 12 with arrows E ₁ and E _1.
It will rotate in _two directions.

Further, the vertical beam 11 is provided with a link mechanism 31 for associatedly rotating the second and third beam members 11B and 11C in response to the rotation of the first beam member 11A. ing. As shown in FIG. 3, the link mechanism 31 includes a connecting member 3 fixed to the fixing member 13.
1A and a connecting member 3 fixed to the second beam member 11B
The first link member 31C is connected between the first beam member 11A and the first beam member 11A, and the connection member 31D is fixed to the first beam member 11A.
The second, third, and fourth link members 31E, 31F, and 31G are connected between the third beam member 11 and the third beam member 11.

In the link mechanism 31, when the first beam member 11A is rotated in the direction of arrow E ₁ , the second and third beam members 11B and 11C are moved in the direction of arrow F ₁ respectively.
And G ₁ to rotate the
The roof 1 is closed as shown in (d) and FIG. 2 (a). The state of the link mechanism 31 in FIG. 3 is a state when the roof 1 is closed. On the other hand, the first beam member 11
When A rotates in the direction of arrow E ₂ , the second and third
The beam members 11B and 11C are rotated in the directions of arrows F ₂ and G ₂ , respectively, and the roof 1 is opened.

A-2. "Roof Sub-Drive Mechanism" This sub-drive mechanism partially drives the rear portion 1B of the roof 1 (see FIGS. 1 and 2).
Two sets are installed symmetrically on both the left and right sides of the.

A vertical beam 41 as shown in FIG. 4 is attached to each of the left and right side portions of the rear portion 1B of the roof 1, and the base end thereof has one end 42A of a substantially U-shaped link member 42. It is connected so that it cannot move relative to. Further, a horizontal beam (not shown) is bridged between the ends of the left and right vertical beams 41. The other end 42B of the link member 42
Is connected to the pin 12 of the vehicle body side fixing member 13 described above via the link members 43 and 44. A second hydraulic cylinder 45 is attached between the intermediate portion of the link member 44 and the fixed position on the vehicle body side.

The pin 46 attached to the connecting portion of the vertical beam 41 and the link member 42 has a pin 46 as shown by the two-dot chain line in FIG. 4 for the first beam member 1A of the "roof main drive mechanism" described above. When it is in the rotation limit position in the direction of arrow E ₁ , that is, in the closed roof state, it is rotatably supported at a fixed position by the guide member 32 attached to the beam member 11A. Therefore, in the closed roof state, the vertical beam 41 and the link member 42 can integrally rotate about the support pin 46 in the directions of arrows J ₁ and J ₂ in FIG.

Therefore, in the closed roof state, the second
When the hydraulic cylinder 45 of FIG. 4 expands and contracts, the link member 44 rotates in the directions of arrows K ₁ and K _{2 in} FIG. 4, and the vertical beam 41 rotates about the support pin 46 as an arrow J _1.
And rotate in the J ₂ direction. FIG. 4 shows a state in which the vertical beam 41 is at the rotation limit position in the direction of the arrow J _2, and the rear side portion 1B of the roof 1 at this time is the same as that shown in FIG.
The states of (a) and (d) are obtained. Further, FIG. 6 shows a state in which the vertical beam 41 is at the rotation limit position in the direction of the arrow J _1, and the rear portion 1B of the roof 1 at this time is as shown in FIGS. 2 (b) and 2 (c). ) State. Also, FIG.
Indicates a state in which the vertical beam 41 is being rotated.

On the other hand, the support pin 46 is the same as the support beam 46 shown in FIG.
The guide member 3 attached to the beam member 11A when rotating in the arrow E ₂ direction from the movement limit position in the arrow E ₁ direction as shown by the dotted line, that is, when the roof 1 opens.
It is pushed downward by ₂ and moves in the direction of arrow L _{2 in} FIG. 7.

Therefore, when the roof 1 is opened, as shown by the solid line in FIG. 7, the vertical beam 41 and the link member 42 move in the direction of the arrow L ₂ together with the support pin 46, and the roof cover 2 (see FIGS. 1 and 2). It is stored in the roof storage space that is opened and closed by (see FIG. 2). On the contrary, when the roof 1 is closed, the vertical beam 41 and the link member 42 move in the direction of the arrow L _{1 as} the guide member 32 rotates in the direction of the arrow E _{1 in} FIG. 7 together with the first beam member 11A. To move out of the roof storage space. In addition,
When the first beam member 11A is rotated to the movement limit position in the arrow E ₂ direction, the above-described FIGS.
As shown in, the entire roof 1 is stored in the roof storage space.

A-3. “Roof Cover Driving Mechanism” This driving mechanism is for opening and closing the roof cover 2 (see FIGS. 1 and 2) described above.

In the case of this example, the roof cover 2 is moved to the position shown in FIG. 2 by expanding and contracting the third hydraulic cylinders 51 (see FIG. 1A) provided on both sides of the roof cover 2. It is configured to rotate in the A ₁ direction in (b) and in the A ₂ direction in FIG. 2 (c).

B. "Control Mechanism" This control mechanism is for controlling the above-mentioned first, second and third hydraulic cylinders 21, 45 and 51 in a related manner, and is configured as shown in FIG.

In FIG. 8, reference numeral 61 is a control unit composed of a sequence circuit, and its power supply terminal 61A is
It is connected to a vehicle battery via a fuse 62 and an ignition switch (not shown). Further, the control unit 61 includes a total of six solenoids 63A, 63B, 64A, 64B in the valve unit 66 as shown in FIG.
65A and 65B are connected. Hydraulic pressure is supplied to the valve unit 66 from a hydraulic pump 67. Solenoids 63A and 63B are connected to the first hydraulic cylinder 21.
The hydraulic cylinder 21 is expanded and contracted by switching the valve 63 for the solenoid, and the solenoids 64A and 64B are connected to the second hydraulic cylinder 45 (see FIG. 4).
The hydraulic cylinder 45 is expanded and contracted by switching the valve 64 for the third hydraulic cylinder 51.
The hydraulic cylinder 51 is expanded and contracted by switching the valve 65 (see FIG. 1A).

A motor 67A for driving the hydraulic pump 67 shown in FIG. 9 is connected to the controller 61 shown in FIG.
As will be described later, the deceleration control unit (deceleration control means) 68 in the control unit 61 controls the drive voltage of the motor 67A in two stages of 9V and 12V. When lowering the drive voltage to 9V, the step-down resistor R is used.

Further, in FIG. 8, reference numeral 71 is a first detection switch for detecting that the roof 1 is in the open roof state, and 72 is a second detection switch for detecting that the roof 1 is in the closed roof state. , 73 are third detection switches (detection means) for detecting that the roof 1 is closed to a predetermined halfway position. These switches 71, 72 and 7
3 is provided in the above-mentioned “main drive mechanism for the roof”, and detects the open / closed state of the roof 1 by utilizing the fact that the constituent members of the main drive mechanism move according to the open / closed state of the roof 1. ..

In the case of this example, the second detection switch 72 is
As shown in FIG. 11, it is attached to the fixed position of the vehicle body side fixing member 13, the first beam member 11A reaches the rotation limit position in the arrow E ₁ direction, and the roof 1 is in the closed roof state. Sometimes, the cam 74 provided on the beam member 11A
However, as shown by the solid line in the figure, the lever 72A of the second detection switch 72 is pushed to close the contact.
In addition, the third detection switch 73 in this example is the same as that shown in FIG.
As shown in FIG. 1, the first link member 31C attached to the fixed position of the vehicle body side fixing member 13 rotates in the direction of arrow M _{1 about} the connection point P with the connection member 31A, and
As shown in (d), when the roof 1 is closed to an intermediate position slightly in front of the closed roof state, the operating body 75 provided on the link member 31C has the third detection switch as shown by the solid line in FIG. The lever 73A of 73 is pushed to close the contact.

In FIG. 8, reference numerals 81 and 82 denote sensors for detecting the operating state of the above-mentioned "roof sub-driving mechanism". One sensor 81 has a vertical beam 41 indicated by an arrow as shown in FIG. Detecting that the rotation limit position in the J ₂ direction is reached, the other sensor 82 detects that the vertical beam 41 has reached the rotation limit position in the arrow J ₁ direction as shown in FIG. ..

Further, reference numerals 83 and 84 in FIG. 8 denote sensors for detecting the operating state of the above-mentioned "roof cover drive mechanism", and one sensor 83 is shown in FIG.
As shown in (a), the roof cover 2 is detected to be closed, and the other sensor 84 detects that the roof cover 2 is opened as shown in FIG. 1 (b).

In FIG. 8, 101 is an open switch operated when the roof 1 is opened, and 102 is the roof 1.
This is a close switch that is operated when closing the.

Further, in FIG. 8, 91 and 92 are
It is a driving motor for the left and right lock mechanisms for locking the front portion 1A (see FIG. 2) of the roof 1 to the frame 3 above the windshield.

Therefore, the control section 61 closes the roof 1 according to the operation procedure shown in FIGS. 1 and 2 when the close switch 102 is operated, and when the open switch 101 is operated, The first, second and third hydraulic cylinders 21, 45 and 51 are relatedly controlled so as to open the roof 1 according to the reverse operation procedure, and the above-mentioned "roof main drive mechanism" and "roof Operate the sub drive mechanism and the roof cover drive mechanism.

At this time, the deceleration controller 68 controls the hydraulic pump 6
The drive voltage of the drive motor 67A of No. 7 is switched as follows.

First, when opening the roof 1, the motor 6
The drive voltage of 7 A is kept constant at 12 V, and a relatively high constant hydraulic pressure is supplied from the hydraulic pump 67 to the hydraulic cylinders 21, 45 and 51.

On the other hand, when the roof 1 is closed,
The drive voltage of the motor 67A is set to 12V from (a) to FIG. 1 (d), and the drive voltage is lowered to 9V from FIG. 1 (d) to FIG. 2 (a). ) To Figure 2
Until (d), the drive voltage is returned to 12V. Therefore, between FIG. 1 (d) and FIG. 2 (a), the hydraulic pressure supplied from the hydraulic pump 67 decreases and the roof 1
The closing speed becomes low, and the front side portion 1A thereof hits the frame 3 above the windshield at a low speed. As a result, the impact when closing the roof 1 is prevented.

By the way, the fact that the roof 1 has reached the halfway closed state of FIG. 1D is detected by the above-mentioned third detection switch 73, and the roof 1 is brought to the closed roof state of FIG. 2A. The arrival is detected by the second detection switch 72 described above.

The means for reducing the closing speed of the roof 1 is not limited to the means for reducing the drive voltage of the drive motor 67A of the hydraulic pump 67, and a pressure adjusting valve or the like may be used. What is essential is that the closing speed of the roof 1 can be partially reduced during the closing operation.

[0043]

As described above, the drive control device for the opening / closing roof of the present invention is configured to reduce the closing speed of the opening / closing roof from the time when the opening / closing roof is closed to the predetermined midway position. It is possible to prevent an impact when the opening / closing roof is closed without significantly extending the time required to close the opening / closing roof.

[Brief description of drawings]

1 (a), (b), (c) and (d) are:
It is explanatory drawing of the closing operation | movement procedure to the closed position in the middle of the hood type opening / closing roof of an automobile.

2 (a), (b), (c) and (d):
It is explanatory drawing of the closing operation procedure from the closed position in the middle of the opening and closing roof shown in FIG.

FIG. 3 is a side view of a main drive mechanism for a roof provided in the device of the present invention.

FIG. 4 is a side view of a sub drive mechanism for a roof provided in the device of the present invention.

FIG. 5 is a side view of the roof auxiliary drive mechanism shown in FIG. 4 in different operating states.

FIG. 6 is a side view of the roof sub-operation mechanism shown in FIG. 4 in another different operation state.

FIG. 7 is a side view of the sub drive mechanism for the roof shown in FIG. 4 in still another different operation state.

FIG. 8 is a schematic configuration diagram of a control mechanism included in the device of the present invention.

9 is a schematic configuration diagram of a hydraulic circuit provided with the solenoid shown in FIG.

FIG. 10 is a side view of the peripheral portion of the mounting location of the third detection switch shown in FIG.

FIG. 11 is a side view of the peripheral portion of the mounting location of the second detection switch shown in FIG.

[Explanation of symbols]

1 Roof 1A Front Part 1B Rear Part 3 Frame 11 Vertical Beams 11A, 11B, 11C Beam Member 21 First Hydraulic Cylinder 31 Link Mechanism 41 Vertical Beam 45 Second Hydraulic Cylinder 51 Third Hydraulic Cylinder 61 Control Part 63, 64,65 valve 63A, 63B, 64A, 64B, 65A, 65B solenoid 66 valve unit 67 hydraulic pump 67A hydraulic pump drive motor 68 deceleration control section (deceleration control means) 73 detection switch (detection means)

Claims (1)

[Claims] 1. A drive control device for an opening / closing roof, which drives and controls the opening / closing roof at least in a closing direction, and a detection means for detecting that the opening / closing roof has been closed to a predetermined middle position, and outputting a detection signal. An opening / closing roof drive control device, comprising: deceleration control means for reducing the driving speed of the opening / closing roof in the closing direction when the detection means outputs a detection signal.