JP6828325B2 - Opening / closing device for vehicle opening / closing body, opening / closing control device for vehicle opening / closing body - Google Patents

Description

The present invention relates to an opening / closing device for a vehicle opening / closing body and an opening / closing control device for the vehicle opening / closing body.

Conventionally, a sliding door that opens and closes a door opening of a vehicle is supported by a slide rail provided on the vehicle body so that the sliding door can move in the front-rear direction of the vehicle.
Patent Document 1 discloses an electric sliding door device in which a drum that rotates by being driven by a motor and a cable wound around the drum are provided on the sliding door. In this electric sliding door device, a control unit that detects a motor pulse, determines that the sliding door has reached the fully open position, and stops driving the motor by detecting that the motor pulse does not change for a predetermined fixed time. Has.

Japanese Unexamined Patent Publication No. 2003-314144

In the case of the electric sliding door device of Patent Document 1, a time lag occurs between the time when the sliding door reaches the fully open position and the time when the driving of the motor is stopped. During this time lag, the cable is in a tensioned state because the motor continues to drive even though the sliding door does not displace. Therefore, the cable is repeatedly tensioned each time the sliding door is displaced to the fully open position.

It should be noted that such a problem is not limited to transmitting the driving force of the motor by a cable. For example, the above problem may occur even in an electric sliding door device that employs a mechanical element such as a belt instead of a cable. Further, the displacement target is not limited to the sliding door, but may be a roof window or the like.

An object of the present invention is to provide an opening / closing device for a vehicle opening / closing body and an opening / closing control device for a vehicle opening / closing body in which tension is suppressed on a mechanical element.

In order to solve the above problems, the vehicle opening / closing device includes a drive unit that opens / closes the vehicle opening / closing body by winding a drive cable connecting the vehicle opening / closing body and the vehicle, the vehicle opening / closing body, and the vehicle. A fully open latch device having a latch provided on the other side and engaging with the striker, and a holder for holding the latch in a state of being engaged with the striker, and the holder. Triggered by a detection unit that detects that the latch is held in a state of being engaged with the striker, and a detection that the holder holds the latch in a state of being engaged with the striker in the detection unit. A motor that is a drive source for winding the drive cable as a configuration of the drive unit, which is an opening / closing device for a vehicle opening / closing body including a control unit for stopping the winding of the drive cable in the drive unit. And a pulse sensor that detects the rotation pulse of the motor, and the control unit determines whether or not the vehicle switchgear has reached the fully open position from the detection result of the pulse sensor. When the situation for determining that the vehicle opening / closing body has reached the fully opened position is continuous for a plurality of preset times from the detection result of the pulse sensor, the control unit determines that the detection unit has a defect. Is the gist.

According to this configuration, the winding of the drive cable is stopped when the latch engaged with the striker is held by the holder, that is, when the vehicle opening / closing body is held in the fully open position. .. Therefore, compared with the conventional configuration in which the winding of the drive cable is stopped when the vehicle opening / closing body is held in the fully open position for a certain period of time, this configuration is a mechanical element including the drive cable. The tension is suppressed.

According to this configuration, even if a problem occurs in the detection unit, the motor can be switched from on to off based on the detection result of the pulse sensor. That is, the opening / closing device of the vehicle opening / closing body having this configuration is designed to fail sail in the motor when the vehicle opening / closing body is changed from the closed state to the open state.
According to this configuration, it is determined that the defect occurs only when the defect in the detection unit occurs with a high probability. Therefore, it is easy for the person in charge of vehicle maintenance to make a decision such as replacing the detection unit and related parts.
In the above configuration, the control unit gradually weakens the winding of the drive cable in the drive unit, triggered by the holding tool holding the latch in a state of being engaged with the striker, and finally stops. It is preferable to let it.

According to this configuration, the winding of the drive cable is gradually weakened, so that the inertial force applied to the vehicle opening / closing body at the moment when the winding of the drive cable is stopped is weak. Therefore, the swing back of the vehicle opening / closing body is small, and the load on various mechanical elements such as the vehicle opening / closing body is suppressed.

In order to solve the above problems, the vehicle opening / closing control device that controls the opening / closing of the vehicle opening / closing body by controlling the drive unit that winds up the drive cable connecting the vehicle opening / closing body is the vehicle opening / closing body. And the striker provided on one of the vehicles is engaged with the latch provided on the other side, and the holding tool holds the engaged state as a trigger to wind the drive cable in the drive unit. The vehicle opening / closing body reaches the fully open position from the detection result of the pulse sensor that detects the rotation pulse of the motor, which is a drive source for winding the drive cable and is one configuration of the drive unit. When the situation of determining whether or not the vehicle is open and determining that the vehicle opening / closing body has reached the fully open position from the detection result of the pulse sensor continues for a plurality of preset times, the holder The gist is to determine that it is a defect in the detection unit that detects that the latch is held in a state of being engaged with the striker .

By adopting this open / close control device, tension is suppressed on mechanical elements such as drive cables.

The opening / closing device for the vehicle opening / closing body and the opening / closing control device for the vehicle opening / closing body of the present invention can suppress the application of tension to the mechanical element.

(A) is a side view of the vehicle when the sliding door is fully closed, and (b) is a side view of the vehicle when the sliding door is fully open. The block diagram which shows the outline of the mechanical structure and the electrical structure of a sliding door. (A) is a schematic view showing a driving unit when the sliding door is opened, and (b) is a schematic diagram showing a driving unit when the sliding door is closed. Top view of the guide pulley. Side view of the guide pulley. (A) is a plan view of the fully open latch device when the striker and the latch are not engaged, and (b) is a plan view of the fully open latch device when the striker and the latch are completely engaged. (A) is a partially enlarged view of FIG. 6 (a), and (b) is a partially enlarged view of FIG. 6 (b). A time chart showing the control timing of the drive motor in the control device. A time chart showing the load on the motor.

Hereinafter, a first embodiment in which the opening / closing device of the vehicle opening / closing body is embodied in an electric sliding door device will be described with reference to the drawings.
<First Embodiment>
As shown in FIGS. 1A and 1B, the vehicle 1 includes a sliding door 3 that opens and closes a door opening 2 provided on the side surface of the vehicle. The sliding door 3 corresponds to a vehicle opening / closing body.

As shown in FIG. 2, the slide door 3 is a roller unit 7, 8, which is provided on the side surface of the vehicle and is displaceable along each slide rail of the upper rail 4, the lower rail 5, and the center rail 6 extending in the front-rear direction of the vehicle. 9 is provided. The slide door 3 opens and closes the door opening 2 by the roller units 7, 8 and 9 being displaced in the vehicle front-rear direction along the slide rails (see FIG. 1).

As shown in FIG. 2, the vehicle 1 has an electric sliding door device 10. The electric slide door device 10 includes a fully closed latch device 11 that holds the slide door 3 in a fully closed state, a slide door drive unit 12 that opens and closes the slide door 3, and a fully open latch device that holds the slide door 3 in a fully open state. A fully closed latch device 11, a sliding door driving unit 12, and a control device 14 for controlling the fully open latch device 13 are provided.

The control device 14 corresponds to a control unit, and is electrically connected to a door handle sensor 16 that detects an operation on the door handle 15 provided on the sliding door 3. Further, the control device 14 has various detection units such as a contact sensor (not shown) provided on the front edge of the slide door 3 for detecting pinching between the slide door 3 and the door opening 2, and sounds that there is an abnormality. It is also electrically connected to various notification units such as speakers that appeal to human senses.

The fully closed latch device 11 is a well-known latch device including a latch that can be fitted to a striker provided in a vehicle and a pole that holds the latch in an annular state with the striker. The front and rear 2 of the slide door 3 It is provided in a place. Since the fully closed latch device 11 is a well-known latch device, detailed description and illustration thereof will be omitted.

As shown in FIGS. 3 (a) and 3 (b), the slide door drive unit 12 includes a drum 22 rotated by a drive motor 21, an open side drive cable 23 connecting the drum 22 and the vehicle 1, and a closed drive cable 23. It is provided with a side drive cable 24.

As shown in FIGS. 4 and 5, the open side drive cable 23 is laid on the open side intermediate pulley 25 and the open side guide pulley 26 which constitutes a part of the center roller unit 9.

The closed side drive cable 24 is laid on the closed side guide pulley 28 which forms a part of the closed side intermediate pulley 27 and the center roller unit 9.
The open side guide pulley 26 is a general term for the first open side pulley 26a and the second open side pulley 26b, and the closed side guide pulley 28 is a combination of the first closed side pulley 28a and the second closed side pulley 28b. It is a generic term. The first open side pulley 26a and the first closed side pulley 28a are provided coaxially, and the second open side pulley 26b and the second closed side pulley 28b are provided coaxially.

As shown in FIGS. 3A and 3B, when the drive motor 21 is driven and the drum 22 is rotated, one of the open side drive cable 23 and the closed side drive cable 24 is wound around the drum 22. At the same time, the other is fed out from the drum 22. As a result, the center roller unit 9 moves to the front or rear of the vehicle, and the roller units 7 and 8 follow this. In this way, the sliding door 3 opens and closes the door opening 2 (see FIGS. 1A and 1B).

As shown in FIGS. 3A and 3B, well-known tensioner mechanisms 29 are provided at the vehicle-side ends of the open-side drive cable 23 and the closed-side drive cable 24, respectively. .. The tensioner mechanism 29 absorbs changes in cable length due to aging and temperature differences.

As shown in FIGS. 6A and 6B, the fully open latch device 13 is provided on the lower arm 31 constituting the lower roller unit 8 and is a latch that can be fitted with the striker S provided on the vehicle body. 32 and a pole 33 for holding the latch 32 in the fitted state with the striker S are provided.

More specifically, the latch 32 is capable of swinging around the swing shaft O1 and is provided in a U-shape in the direction of 10 o'clock from the swing shaft O1 as shown in FIG. 6A. It has a first engaging portion 34 having a shape, and a bulging portion 35 provided in a direction from 3:00 to 5:00 from the swing shaft O1 and projecting in an arc shape. The counterclockwise end face of the bulging portion 35 is a second engaging portion 36 that can be engaged with the engaging end portion 37 described later.

As shown in FIG. 6A, the latch 32 has an open position where the first engaging portion 34 is located in the 10 o'clock direction when the swing shaft O1 is centered, and a position where the latch 32 is rotated clockwise from the open position. As shown in FIG. 6B, the first engaging portion 34 is rotationally displaced from the fitting position located in the 12 o'clock direction when the swing shaft O1 is centered.

The latch 32 in the open position allows the striker S to enter the first engaging portion 34 and the striker S to be detached from the first engaging portion 34. Further, the latch 32 at the fitting position is held by the pole 33 described later, thereby restricting the striker S from coming off from the first engaging portion 34.

The pole 33 can swing around the swing shaft O2 provided in the direction from the swing shaft O1 to 6 o'clock, and extends from the 2 o'clock direction to the 8 o'clock direction around the swing shaft O2. It is a shaped member. The pole 33 is constantly urged in the counterclockwise direction in the figure by an urging means (not shown), and a second pole 33 is attached to an end located in the direction of 2 o'clock from the swing axis O2. A hook-shaped engaging end portion 37 that can be engaged with the engaging portion 36 is formed. Further, the end portion (see FIGS. 7 (a) and 7 (b)) located on the directional side of the swing shaft O2 at 8 o'clock is an L-shaped push capable of engaging with the pole switch 40 described later. It is said to be the end 38. The outer end surface of the push end portion 38 when the swing shaft O2 is centered has a smooth arc shape.

As shown in FIG. 6A, the pole 33 has a non-holding position where the engaging end portion 37 contacts the outer edge of the bulging portion 35 and a position where the pole 33 is rotated counterclockwise from the non-holding position. The abutment portion 37 is rotationally displaced between the second engaging portion 36 and the holding position where it engages.

The pole 33 in the non-holding position allows the rotational displacement of the latch 32 in the counterclockwise direction, and the pole 33 in the holding position regulates the rotational displacement of the latch 32 in the counterclockwise direction.
The pole 33 is mechanically connected to the door handle 15 (see FIGS. 1 and 2) via a wire cable W (see FIG. 2). When the door handle 15 is operated, the pole 33 rotates clockwise against the urging force of the urging means (not shown) in conjunction with the door handle 15. As a result, the holding state and the non-holding state of the latch 32 can be switched.

The fully open latch device 13 includes a pole switch 40 located in the direction of 8 o'clock from the swing shaft O2. The pole switch 40 is a push switch located on the displacement locus of the push end 38 when the pole 33 is rotationally displaced between the non-holding position and the holding position.

As shown in FIG. 6A, the pole switch 40 is in a state of being pressed (on) by the push end 38 when the pole 33 is in the non-holding position, and as shown in FIG. 6B, the pole switch 40 is in a state of being pressed (on). When the 33 is in the holding position, the pressing by the pushing end 38 is canceled (off).

Next, the control in the control device 14 and the effects associated with the control will be described.
As shown in FIG. 2, the control device 14 is electrically connected to the door handle sensor 16 that detects an operation on the door handle 15.

When the control device 14 detects an operation on the door handle 15 when the slide door 3 is in the fully open state (see FIG. 1B), the control device 14 drives the drive motor 21 (see FIG. 3) to fully open the slide door 3. To the fully closed state (see FIG. 1 (a)).

Further, when the control device 14 detects an operation on the door handle 15 when the slide door 3 is in the fully closed state (see FIG. 1A), the control device 14 drives the drive motor 21 (see FIG. 3) to slide. The door 3 is displaced from the fully closed state to the fully open state (see FIG. 1B).

The control device 14 controls the drive motor 21 as follows when the slide door 3 is displaced from the fully closed state to the fully open state.
That is, as shown in FIG. 8, the control device 14 engaged the latch 32 with the striker S from a non-holding position where the pole switch 40 was turned from on to off, that is, the pole 33 did not hold the latch 32. The drive motor 21 is switched from on to off, triggered by the displacement to the holding position for holding the state.

As a result, as shown in FIG. 9, in this example, when the engagement between the latch 32 and the striker S is completed, the drive motor 21 is immediately switched from on to off. Therefore, unlike the conventional case, there is no time to restrain the rotation of the drive motor. Since the time during which the rotation of the drive motor is restrained is the time during which tension continues to be applied to the drive cable, according to the electric sliding door device 10 of this example, the tension on the mechanical elements such as the drive cables 23 and 24 is applied. The hook is suppressed. As a result, the occurrence of defects in mechanical elements such as the drive cables 23 and 24 is suppressed.

<Second embodiment>
Next, a second embodiment of the electric sliding door device 10 will be described. The main difference between the second embodiment and the first embodiment is that when the pole switch 40 is switched from on to off, the control device 14 gradually weakens the drive of the drive motor 21. .. Therefore, in the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 8, the control device 14 triggers that the pole switch 40 is turned from on to off, and as shown by the alternate long and short dash line in FIG. 8, the drive motor gradually weakens the driving force. 21 is controlled.

Here, not only the sliding door 3 but also the mechanical elements that are displaced or operated are provided with a margin for surely reaching the target position, that is, so-called play. Therefore, when the drive motor 21 is momentarily switched from on to off, the slide door 3 moves by the amount of play due to inertia, and also swings back due to the reaction.

In that respect, as in this example, the drive of the drive motor 21 is controlled so that the driving force is gradually weakened, so that the backlash of the slide door 3 is moved slowly. Therefore, there is little swing back due to recoil, and the load on the roller units 7, 8 and 9 supporting the slide door 3 and various mechanical elements provided around the door opening 2 is reduced.

<Third embodiment>
Next, a third embodiment of the electric sliding door device 10 will be described. The main difference between the third embodiment and the first embodiment is that the control device 14 uses the information of the pulse sensor provided in the drive motor 21 to control the drive motor 21. Therefore, in the third embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 2, the drive motor 21 constituting the slide door drive unit 12 is provided with a pulse sensor 21a for detecting the rotation of the drive motor 21. The pulse sensor 21a generates a pulse whose on / off is reversed every time the rotor of the drive motor 21 rotates by a predetermined amount. The pulse sensor 21a is electrically connected to the control device 14.

The control device 14 uses the detection result of the pulse sensor 21a for determining the failure of the pole switch 40 and controlling the drive motor 21.
For example, as shown by the alternate long and short dash line in FIG. 8, a case where the detection result of the pole switch 40 is kept on, that is, a so-called on-failure case will be described.

In this case, the control device 14 monitors the detection result of the pulse sensor 21a. Since there is a physical limit to the length of the rails 4, 5 and 6 to which the roller units 7, 8 and 9 supporting the slide door 3 are displaced, the roller units 7, 8 and 9 have rails 4, 5 and 6. The rearward movement of the vehicle is restricted at the end of the vehicle. When the movement of the slide door 3 is restricted, the drive of the drive motor 21 is also regulated, so that the on / off, which is the detection result of the pulse sensor 21a, is not reversed and is maintained in the on or off state.

The control device 14 switches the drive motor 21 from on to off as shown by the alternate long and short dash line in FIG. 8 with the detection that the detection result of the pulse sensor 21a is maintained in the on or off state.

Although the case where the pole switch 40 fails on is described, the control device 14 controls in the same manner even when the pole switch 40 fails off.
As described above, according to this example, even if the pole switch 40 fails, the drive motor 21 can be switched from on to off. That is, according to the electric sliding door device 10 of this example, a fail sale is achieved.

When the slide door 3 is displaced from the fully closed state to the fully open state, the control device 14 sets a state in which the drive motor 21 is stopped according to the detection result of the pulse sensor 21a a plurality of times (for example, 5). When the number of times is continuous, it is determined that there is a problem with the pole switch 40, and information indicating that fact is stored in a storage device or the like (not shown). It should be noted that various notification units such as a speaker and an indicator may appeal to the user's sense of information indicating a malfunction of the pole switch 40.

With this configuration, it is determined that a defect has occurred in the pole switch 40 only when a defect has occurred with a high probability, and this information is stored. Therefore, it is easy for the person in charge of vehicle maintenance to make a decision such as replacing the pole switch 40 and parts related thereto.

The above embodiment may be changed as follows.
-In the above embodiment, the fully open latch device 13 is provided on the lower arm 31 constituting the lower roller unit 8, but may be provided on the upper roller unit 7 or the center roller unit 9. Further, the fully open latch device 13 may be provided in a plurality of the roller units 7, 8 and 9.

-In the above embodiment, the drive cables 23 and 24 may be wide like a belt.
-In the above embodiment, the pole switch 40 is a push switch that can switch between a pressed state and an open state by rotating the pole 33, but it is not limited to the push switch and can detect the rotational position of the pole 33. Just do it.

-In the above embodiment, the sliding door has been described as a vehicle opening / closing body, but the vehicle opening / closing body is not limited to the sliding door. For example, it may be a sunroof or the like.

S ... striker, W ... wire cable, 1 ... vehicle, 2 ... door opening, 3 ... sliding door (vehicle opening / closing body), 4, 5, 6 ... rail, 7, 8, 9 ... roller unit, 10 ... electric slide Door device (opening / closing device for vehicle opening / closing body), 11 ... Fully closed latch device, 12 ... Sliding door drive unit, 13 ... Fully open latch device, 14 ... Control device (control unit), 15 ... Door handle, 16 ... Door handle sensor , 21 ... Drive motor, 21a ... Pulse sensor, 22 ... Drum, 23, 24 ... Drive cable, 25 ... Open side intermediate pulley, 26 ... Open side guide pulley, 27 ... Closed side intermediate pulley, 28 ... Closed side guide pulley, 29 ... tensioner mechanism, 31 ... lower arm, 32 ... latch, 33 ... pole, 34 ... first engaging part, 35 ... bulging part, 36 ... second engaging part, 37 ... engaging end, 38 ... pushing end Unit, 40 ... Pole switch (detection unit).

Claims (3)

A drive unit that opens and closes the vehicle opening / closing body by winding up a drive cable that connects the vehicle opening / closing body and the vehicle.
Fully open having a striker provided on one of the vehicle opening / closing body and the vehicle, a latch provided on the other side to engage with the striker, and a holder for holding the latch in a state of being engaged with the striker. Latch device and
A detector that detects that the holder holds the latch in an engaged state with the striker.
A vehicle switchgear including a control unit that stops winding of the drive cable in the drive unit, triggered by detection in the detection unit that the holder holds the latch in a state of being engaged with the striker. It is an opening and closing device of
As one configuration of the drive unit, a motor that is a drive source for winding the drive cable and
It is equipped with a pulse sensor that detects the rotation pulse of the motor.
The control unit determines whether or not the vehicle opening / closing body has reached the fully open position based on the detection result of the pulse sensor.
When the situation for determining that the vehicle opening / closing body has reached the fully opened position is continuous for a plurality of preset times from the detection result of the pulse sensor, the control unit determines that the vehicle has a defect in the detection unit. Switchgear for the switchgear. In the opening / closing device for the vehicle opening / closing body according to claim 1.
The control unit uses the holding tool holding the latch in a state of being engaged with the striker as a trigger to gradually weaken the winding of the drive cable in the drive unit and finally stop the vehicle opening / closing body. Switchgear. An opening / closing control device for a vehicle opening / closing body that controls the opening / closing of the vehicle opening / closing body by controlling a drive unit that winds up a drive cable connecting the vehicle opening / closing body and the vehicle.
The drive in the drive unit is triggered by the engagement of the latch provided on the other with the striker provided on either the vehicle opening / closing body or the vehicle and the holding tool holding the engaged state. It stops the winding of the cable ,
It is determined whether or not the vehicle opening / closing body has reached the fully open position from the detection result of the pulse sensor that detects the rotation pulse of the motor that is the drive source for winding the drive cable and is one of the drive units. With
A state in which the holder engages the latch with the striker when the situation of determining that the vehicle opening / closing body has reached the fully open position from the detection result of the pulse sensor continues for a plurality of preset times. An opening / closing control device for a vehicle opening / closing body that determines that a defect is found in the detection unit that detects holding in .

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