JP2009091855A - Opening and closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening and closing device which can switch between a high-speed brush and a low-speed brush of a driving motor without relying on positional information of an opening and closing body. <P>SOLUTION: A rotation sensor 27 outputs a rotation detecting signal according to the load applied to a slide motor 26. Based on the rotation detecting signal, a control circuit device 71 supplies a drive power to a slide motor 26 via a common brush 26a and the high-speed brush 26c when the load applied to the slide motor 26 is smaller than a predetermined reference value, and supplies the drive power to the slide motor 26 via the common brush 26a and the low-speed brush 26b when the load applied to the slide motor 26 is larger than the predetermined reference value. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an opening / closing device that opens and closes an opening / closing body by a driving force of a motor or the like.

2. Description of the Related Art Conventionally, an electric slide door device (opening / closing device) that opens and closes an entrance / exit provided on a side of a vehicle by sliding a door panel (opening / closing body) by a driving force of a drive motor or the like is known. For example, in the electric slide door device described in Patent Document 1, the rail that guides the door panel extends linearly along the vehicle front-rear direction from the rear end toward the front end, and from the middle to the front end. The side is curved toward the vehicle interior side. In addition, a drive motor serving as a drive source for sliding the door panel includes three brushes: a common brush, a low speed brush, and a high speed brush. Then, the controller of the electric slide door device drives the drive motor at a low speed or a high speed according to the position of the door panel during the slide movement. For example, the controller drives the drive motor at high speed by supplying drive power via the common brush and the high-speed brush when the door panel slides on a linear portion of the rail. On the other hand, when the door panel slides on the curved portion on the front end side of the rail, the controller drives the drive motor at low speed by supplying drive power via the common brush and the low speed brush.
JP 2003-278445 A

  By the way, since the shape of the rail is generally different for each vehicle type, the position of the door panel for switching between the high speed brush and the low speed brush during sliding movement of the door panel also differs. Therefore, a plurality of types of controllers in which the position of the door panel for switching between the high-speed brush and the low-speed brush is set according to the vehicle type are manufactured, resulting in an increase in manufacturing cost.

  The present invention has been made in view of such circumstances, and an object thereof is to provide an opening / closing device capable of switching between a high-speed brush and a low-speed brush of a drive motor without depending on position information of the opening / closing body. There is.

  In order to solve the above-mentioned problem, the invention according to claim 1 has a common brush, a low-speed brush, and a high-speed brush, and when driving power is supplied through the common brush and the low-speed brush, A fully-closed position for closing the opening formed in the conductive non-moving body is rotated at a lower speed than when the drive power is supplied through the common brush and the high-speed brush, and the opening is opened. A drive motor serving as a drive source for moving the open / close body between the fully open position, a load detection means for detecting a load of the drive motor being driven, and outputting a load detection signal corresponding to the detected load; Control for controlling rotation of the drive motor by switching between the high-speed brush and the low-speed brush for supplying drive power to the drive motor together with the common brush based on the load detection signal It is the gist that a stage.

  According to this configuration, switching between the high-speed brush and the low-speed brush that are energized together with the common brush is performed according to the load applied to the drive motor. Therefore, the high-speed brush and the low-speed brush in the drive motor can be switched without depending on the position information of the opening / closing body. As a result, the position of the opening / closing body that switches between the low-speed brush and the high-speed brush does not have to be set according to the vehicle or the like equipped with the opening / closing device as in the prior art, thereby reducing the manufacturing cost of the opening / closing device. Can be made.

  According to a second aspect of the present invention, in the opening / closing device according to the first aspect, the proximity sensor for detecting, in a non-contact manner, a foreign matter that is close to the closed end on the front side in the moving direction when the open / close body is closed. And when the proximity sensor detects the proximity of the foreign matter when the drive power is supplied to the drive motor via the common brush and the high-speed brush, the common brush Further, the gist of the present invention is to supply drive power to the drive motor via the low-speed brush.

  According to this configuration, when a power supply is supplied to the drive motor via the common brush and the high-speed brush, if the proximity sensor detects a foreign object close to the closed end of the opening / closing body, the control is performed. The means supplies drive power to the drive motor via the common brush and the low speed brush. Therefore, if a foreign object comes close to the closed end of the opening / closing body, the moving speed of the opening / closing body decreases regardless of the load applied to the drive motor. Is easily moved away from the closed end of the opening / closing body. As a result, contact between the foreign matter and the opening / closing body can be suppressed.

  According to a third aspect of the present invention, in the switchgear according to the second aspect, the proximity sensor is disposed at the closed side end and outputs a proximity signal corresponding to the distance to the foreign object. A main body, and when the detection value based on the proximity signal exceeds a first threshold value for detecting the foreign object proximate to the closed end during the closing operation of the opening / closing body, the common unit Drive power is supplied to the drive motor via a brush and the low-speed brush, and the foreign matter in the vicinity of the closed end where the detection value is set to a value larger than the first threshold is detected. The gist of the invention is to control the rotation of the drive motor so as to stop the movement of the open / close body toward the fully closed position when the second threshold value is exceeded.

  According to this configuration, when the detection value exceeds the first threshold during the closing operation of the opening / closing body, the drive power is supplied to the drive motor via the common brush and the low speed brush, and the detection value is the second threshold. If it exceeds, the movement of the opening / closing body to the fully closed position side is stopped. Therefore, when the detected value exceeds the first threshold value, the moving speed of the opening / closing body is reduced regardless of the load applied to the drive motor, so that the foreign object is not in contact with the closed end of the opening / closing body. Is easily moved away from the closed end of the opening / closing body. Furthermore, when the detected value exceeds the second threshold value, the movement of the opening / closing body toward the fully closed position is stopped, so that contact between the foreign matter and the opening / closing body can be prevented in advance. For these reasons, when the rotation of the drive motor is controlled in accordance with the two threshold values for detecting a foreign object close to the closed end, the reliability of preventing contact between the foreign object and the opening / closing body can be improved. .

  According to a fourth aspect of the present invention, there is provided the opening / closing apparatus according to any one of the first to third aspects, further comprising an inclination detecting means for detecting an inclination amount in a moving direction of the opening / closing body, wherein the control means is If the opening / closing body detects that the opening / closing body is inclined more than a predetermined reference inclination amount toward the front side in the moving direction of the opening / closing body based on the detection result of the inclination detecting means, the common brush Further, the gist of the present invention is to supply drive power to the drive motor via the low-speed brush.

  According to this configuration, when the control unit detects that the opening / closing body is inclined more than the predetermined reference inclination amount toward the front side in the moving direction of the opening / closing body, the control means passes through the common brush and the low-speed brush. Drive power is supplied to the drive motor. Therefore, for example, when the opening / closing body comes into contact with a foreign object because the weight of the opening / closing body is applied to the front side in the moving direction of the opening / closing body, the opening / closing device is arranged on a downhill where a large pinching load is easily applied to the foreign object In this case, the moving speed of the opening / closing body is reduced, and the contact between the opening / closing body and a foreign object is suppressed.

  According to a fifth aspect of the present invention, in the opening / closing device according to any one of the first to fourth aspects, the non-moving body is a body of a vehicle, and the opening / closing body is a side of the vehicle. The gist of the invention is that the door panel is slidably moved along the front-rear direction of the vehicle so as to open and close the opening provided in the vehicle.

  According to this configuration, in the opening / closing apparatus having an opening formed on the side of the vehicle and a door panel that closes the opening, the high-speed brush and the low-speed brush in the drive motor do not depend on the position information of the opening / closing body. You can switch to a brush.

  According to the present invention, it is possible to provide an opening / closing device capable of switching between a high-speed brush and a low-speed brush of a drive motor without depending on position information of the opening / closing body.

DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a vehicle 2 equipped with an electric sliding door device (opening / closing device) 1. As shown in FIG. 1, the vehicle 2 includes a vehicle body (body) 3 made of a conductive metal material, and a left and right side surface of the vehicle body 3 is formed with an entrance / exit 4 as a rectangular opening. Yes. The entrance / exit 4 is opened / closed by a door panel 5 formed of a conductive metal material and having a rectangular shape corresponding to the entrance / exit 4. In addition, as shown in FIG. 2, a front passenger door panel 6 having conductivity is provided in front of the passenger door 4, and the door panel 5 in a state in which the passenger door 4 is closed and the front passenger door panel 6. In the middle, a conductive center pillar 7 is provided so as to extend in the vertical direction of the vehicle 2.

  As shown in FIG. 1, the door panel 5 is attached to the vehicle body 3 so as to be movable in the front-rear direction via an operating mechanism 10 to open and close the entrance / exit 4, and the door panel 5 has a latch or the like. A locking mechanism (not shown) is provided. The lock mechanism is configured such that the door panel 5 cannot move with respect to the vehicle body 3 when the door panel 5 is in a state of closing the entrance 4 (that is, the door panel 5 is disposed at the fully closed position Pc shown in FIG. 2). It is for fixing as much as possible. A half latch detection unit 11 (see FIG. 4) is provided in the vicinity of the lock mechanism, and the half latch detection unit 11 sends a half latch detection signal to the electric sliding door when the lock mechanism is in a half latch state. The data is output to the control circuit device 71 (see FIG. 4) of the device 1. For example, a limit switch that is turned on when the latch of the lock mechanism abuts when the lock mechanism is in a half latch state is used as the half latch detection means 11.

  The operating mechanism 10 includes an upper rail 12, a lower rail 13, a center rail 14 provided on the vehicle body 3, and an upper arm 15, a lower arm 16, and a center arm 17 provided on the door panel 5 side.

  The upper rail 12 and the lower rail 13 are respectively provided at an upper part and a lower part of the entrance 4 in the vehicle 2 and extend along the front-rear direction of the vehicle 2. The center rail 14 is provided at a substantially central portion of a portion of the vehicle 2 that is behind the entrance / exit 4 and extends along a substantially front-rear direction of the vehicle 2. Each of the rails 12 to 14 is linearly formed along the vehicle front-rear direction from the rear end to the front end side, and is curved so that the front end side faces the vehicle interior side from the middle.

  The arms 15 to 17 are fixed at predetermined positions on the upper, lower, and central portions of the door panel 5 on the vehicle interior side. The upper arm 15 is connected to the upper rail 12, the lower arm 16 is connected to the lower rail 13, the center arm 17 is connected to the center rail 14, and the arms 15 to 17 are connected to the rails 12 to 12. 14, the vehicle 2 can move in the front-rear direction.

  The lower arm 16 is moved in the front-rear direction by driving the drive mechanism 21. More specifically, a drive pulley 22 and a driven pulley 23 of the drive mechanism 21 that rotate about the vertical axis of the vehicle 2 are provided at a position closer to the vehicle interior side than the lower rail 13. An endless belt 24 is stretched around the driving pulley 22 and the driven pulley 23, and the end of the lower arm 16 is fixed to the endless belt 24.

  As shown in FIGS. 1 and 4, a slide actuator 25 constituting the drive mechanism 21 is connected to the drive pulley 22. The slide actuator 25 is disposed on the vehicle interior side, and includes a slide motor 26 and a speed reduction mechanism (not shown) that reduces the rotation of the slide motor 26 and transmits it to the drive pulley 22. When the slide motor 26 is driven and the drive pulley 22 rotates, the endless belt 24 is driven to rotate, the lower arm 16 moves in the front-rear direction, and the door panel 5 slides in the front-rear direction.

  The slide motor 26 includes three brushes: a common brush 26a, a low speed brush 26b, and a high speed brush 26c. The common brush 26a and the low speed brush 26b are arranged at positions facing each other across the rotation shaft (not shown) of the slide motor 26, and the high speed brush 26c is predetermined in the circumferential direction with respect to the low speed brush 26b. It is arranged at a position shifted by an angle. The drive power is supplied to the slide motor 26 through the common brush 26a and the low speed brush 26b, or the drive power is supplied through the common brush 26a and the high speed brush 26c. When driving power is supplied using the low speed brush 26b, the slide motor 26 rotates at a low speed and a high torque. On the other hand, when the driving power is supplied using the high-speed brush 26c, the slide motor 26 rotates with the high-speed bottom torque as compared with the case where the driving power is supplied using the low-speed brush 26b.

  A rotation sensor 27 that detects the rotation of the slide motor 26 is provided in the slide actuator 25. The rotation sensor 27 includes, for example, a permanent magnet (not shown) provided to rotate integrally with a rotation shaft (not shown) of the slide motor 26 or a reduction gear (not shown) that constitutes the speed reduction mechanism, and the permanent magnet. The Hall IC is arranged as a rotation detection signal (load detection signal), and a pulse signal corresponding to a change in the magnetic field of the permanent magnet due to the rotation of the permanent magnet. Is output. Incidentally, since the door panel 5 is operated by the driving force of the slide motor 26, the rotation detection signal becomes a signal corresponding to the position of the door panel 5, and every time the door panel 5 moves a predetermined distance, the H (high potential) level. The potential level is switched from L to L (low potential) level or from L level to H level.

  A closer actuator 28 constituting the drive mechanism 21 is disposed in the door panel 5. The closer actuator 28 includes a closer motor 29 and a speed reduction mechanism (not shown) for reducing the rotation of the closer actuator 28. When the closer motor 29 is driven, the door panel 5 is moved to a position where the lock mechanism can be locked.

  Further, the electric sliding door device 1 includes an operation switch 31 that is electrically connected to the control circuit device 71. The operation switch 31 controls an opening signal to slide the door panel 5 so as to open the entrance / exit 4 when the operation switch 31 is operated by the passenger of the vehicle 2 to open the entrance / exit 4. Output to the circuit device 71. On the other hand, when the operation switch 31 is operated so as to close the entrance / exit 4 by the occupant, the operation switch 31 generates a closing signal for sliding the door panel 5 so as to close the entrance / exit 4. To 71. The operation switch 31 is provided in a predetermined part (dashboard or the like) in the vehicle interior, a surface of the door panel 5 on the vehicle interior side, a portable item (not shown) carried along with the ignition key, and the like.

  In addition, the electric sliding door device 1 includes a foreign matter detection device 41 for detecting a conductive foreign matter X1 existing between the door panel 5 and the entrance / exit 4 and a foreign matter X2 having no electrical conductivity (see FIG. 2). In addition, the foreign object detection device 41 includes a sensor main body 42, an ON-OFF detection unit 43, and a CV conversion circuit 44.

  As shown in FIG. 2, the cable-shaped sensor main body 42 is disposed along the front end portion in the traveling direction when the door panel 5 is closed, that is, along the front end portion 5 a of the door panel 5. The length of the sensor body 42 in the longitudinal direction is substantially equal to the length of the front end portion 5a of the door panel 5 in the vertical direction, and is made of an insulating resin material (including rubber and elastomer). It is accommodated in the formed substantially cylindrical holding member (not shown), and is fixed to the front end portion of the door panel 5 through the holding member.

  As shown in FIG. 3A, the insulating layer 51 provided at the center of the sensor body 42 is formed of an elastically deformable insulator (soft synthetic resin material, rubber, etc.) having insulating properties and resilience. In addition, it has a long and substantially cylindrical shape. A spacing hole 51 a extending along the longitudinal direction of the insulating layer 51 is formed at the radial center of the insulating layer 51. The spacing hole 51 a is formed by separating the spacing recesses 51 b to 51 e that are recessed toward the radially outer side at four locations that are equiangularly spaced in the circumferential direction in the cross section along the radial direction of the insulating layer 51. By forming the shape connected by the portions, the cross-sectional shape in the direction orthogonal to the longitudinal direction of the insulating layer 51 forms a cross shape. The separation hole 51a extends along the longitudinal direction of the insulating layer 51 so that the four separation recesses 51b to 51e are spiral.

  In addition, inside the insulating layer 51, electrode lines 52a to 52d held by the insulating layer 51 are arranged. Each of the electrode wires 52a to 52d includes a flexible central electrode 53 formed by twisting conductive thin wires, and a cylindrical conductive coating layer 54 that has conductivity and elasticity and covers the outer periphery of the central electrode 53. It is composed of And each electrode line 52a-52d is arrange | positioned between the four space | gap recessed parts 51b-51e of the insulating layer 51 so that the spiral along the space | interval recessed parts 51b-51e may be made, respectively. In addition, the electrode lines 52 a to 52 d are embedded in the insulating layer 51 with a little more than half in the circumferential direction between the spaced recesses 51 b to 51 e.

  As shown in FIG. 4, the electrode line 52a and the electrode line 52c are conductive at one end in the longitudinal direction (the right end in FIG. 4), and the electrode line 52b and the electrode line 52d are also one end in the longitudinal direction (FIG. 4). In the right end). The electrode line 52c and the electrode line 52d are electrically connected via the resistor 55 at the other end in the longitudinal direction (the left end in FIG. 4). Further, the other end in the longitudinal direction of the electrode line 52b (the left end in FIG. 4) is connected to the ground GND (grounded to the vehicle body 3), and the other end in the longitudinal direction of the electrode line 52a (FIG. 4). (The left end portion) is electrically connected to the ON-OFF detector 43. Then, power is supplied to the electrode line 52 a via the control circuit device 71 and the ON-OFF detector 43.

  As shown in FIG. 3A, a sensor electrode 56 having conductivity is provided on the outer periphery of the insulating layer 51. The sensor electrode 56 has a cylindrical shape and covers the insulating layer 51 from one end to the other end in the longitudinal direction. The outer periphery of the sensor electrode 56 is covered with a cylindrical outer skin 57. The outer skin 57 is made of an insulating material, is elastically deformable, and has a length in the longitudinal direction equal to the length in the longitudinal direction of the insulating layer 51.

  As shown in FIG. 4, the ON-OFF detection unit 43 comes into contact with the foreign body X1 and X2 (see FIG. 4) that exist between the door body 5 and the peripheral edge of the entrance / exit 4 together with the sensor body 42. The pressure sensor which detects X1 and X2 is comprised. The ON-OFF detection unit 43 is connected to the ground GND.

  Here, in a normal state where the pressing force is not applied to the sensor body 42 (the state shown in FIG. 3A), the current supplied to the electrode wire 52a is transmitted from the electrode wire 52a through the electrode wires 52c and 52d. When flowing to the electrode line 52b, the current flows through the resistor 55. On the other hand, for example, when a pressing force is applied to the sensor main body 42 from the direction of the arrow α (the state shown in FIG. 3B), the outer skin 57, the sensor electrode 56, and the insulating layer 51 are elastically deformed, and the electrode wires 52a and One of the electrode lines 52c and one of the electrode lines 52b and 52d come into contact with each other and are short-circuited. Then, the current flowing from the electrode line 52a to the electrode line 52b via the electrode lines 52c and 52d flows without passing through the resistor 55, and becomes a voltage value between the electrode line 52a and the ground GND in a normal state. In contrast, the voltage value between the electrode line 52a and the ground GND changes. The ON-OFF detection unit 43 detects a change in the voltage value between the electrode line 52a and the ground GND at this time, and selects one of the electrode line 52a and the electrode line 52c, and any of the electrode line 52b and the electrode line 52d. A contact detection signal indicating that the voltage value has changed is output to the control circuit device 71 based on the fact that one of them is in contact and short-circuited with each other. For example, the ON-OFF detection unit 43 has a threshold value set based on the voltage value between the electrode line 52a and the ground GND in a normal state, and between the detected electrode line 52a and the ground GND. When the voltage value exceeds the threshold value, a contact detection signal is output. When the pressing force on the sensor main body 42 is removed, the outer skin 57, the sensor electrode 56, and the insulating layer 51 are restored, and the electrode lines 52a to 52d are also restored and become non-conductive.

  The CV conversion circuit 44 is electrically connected to the sensor electrode 56 and detects the conductive foreign matter X1 existing between the door electrode 5 and the periphery of the entrance / exit 4 together with the sensor electrode 56 in a non-contact manner. An electrostatic capacity type proximity sensor is configured. The CV conversion circuit 44 is disposed in the door panel 5 and is electrically connected to the control circuit device 71. The CV conversion circuit 44 detects the electrostatic capacitance between the sensor electrode 56 and the ground, or between the sensor electrode 56 and the conductive foreign material X1. The CV conversion circuit 44 is a sensor based on an electrical signal (proximity signal) that is input from the sensor electrode 56 of the sensor body 42 and that corresponds to the distance between the sensor electrode 56 and the foreign object X1 (or the ground). The capacitance at the electrode 56 is detected. Then, the CV conversion circuit 44 calculates a change amount of the electrostatic capacitance in the sensor electrode 56 per predetermined measurement time set in advance, and outputs the calculation result (detected value) to the control circuit device 71. When the foreign object X1 comes close to the sensor main body 42, the capacitance between the foreign object X1 and the sensor electrode 56 increases, so that the amount of change in the electrostatic capacity at the sensor electrode 56 increases. Therefore, when the foreign object X1 comes close to the sensor main body 42, the detection value increases.

  In addition, the electric slide door device 1 includes an inclination sensor 61 for detecting the amount of inclination of the door panel 5 in the moving direction. The inclination sensor 61 is disposed, for example, inside the door panel 5 and is electrically connected to the control circuit device 71. The inclination sensor 61 of the present embodiment detects the inclination angle θ1 in the moving direction of the door panel 5 and outputs the detection result to the control circuit device 71 (see FIG. 5). In the present embodiment, since the moving direction of the door panel 5 during the opening operation and the closing operation is the front-rear direction of the vehicle 2, the inclination sensor 61 is orthogonal to the horizontal line L1 extending horizontally as shown in FIG. An inclination angle θ1 in the front-rear direction of the door panel 5 with respect to the straight line L2 extending in the vertical direction is detected and output. FIG. 5 illustrates a state in which the door panel 5 is inclined by the inclination angle θ1 toward the front side in the moving direction when the door panel 5 is closed. In FIG. 5, L <b> 3 is a center line of the door panel 5.

  The electric sliding door device 1 of the present embodiment is controlled by a control circuit device 71. The control circuit device 71 is provided, for example, in the vicinity of the slide motor 26 and is supplied with drive power from the battery 72 of the vehicle 2.

  The control circuit device 71 includes a slide actuator 25 based on various signals input from the half latch detection unit 11, the rotation sensor 27, the operation switch 31, the CV conversion circuit 44, the ON-OFF detection unit 43, and the tilt sensor 61. And the closer actuator 28 is controlled. That is, the control circuit device 71 opens the door panel 5 to the fully open position Po when the open signal is input from the operation switch 31, and closes the door panel 5 to the fully closed position Pc when the close signal is input. The slide motor 26 is controlled so as to make it happen. Further, when the half latch detection signal is input from the half latch detection means 11 when the door panel 5 is closed, the control circuit device 71 moves the closer motor 29 to move the door panel 5 to a position where the door panel 5 can be locked. Control. Further, the control circuit device 71 detects the position of the door panel 5 based on the rotation detection signal input from the rotation sensor 27 and detects the load applied to the slide motor 26 based on the pulse width of the rotation detection signal.

  The control circuit device 71 includes a foreign object proximity determination circuit 71 a that forms a proximity sensor together with the CV conversion circuit 44 and the sensor electrode 56. The foreign object proximity determination circuit 71a is used for comparison with the detection value input from the CV conversion circuit 44 in order to detect the conductive foreign object X1 (see FIG. 4) adjacent to the front end 5a of the door panel 5. There are two threshold values Th1 and Th2. The first threshold Th1 uses the sensor main body 42 in advance by closing the door panel 5 by driving the slide motor 26 at a high speed in a state where there is no conductive foreign matter X1 between the door panel 5 and the entrance 4. The change in capacitance is actually detected, and is set based on the detected actual change in capacitance. On the other hand, the second threshold Th <b> 2 closes the door panel 5 by driving the slide motor 26 at a low speed in a state where there is no conductive foreign matter X <b> 1 between the door panel 5 and the entrance / exit 4, so Is used to actually detect a change in capacitance, and is set based on the detected actual change in capacitance. The first threshold value Th1 is set to a value larger than the detection value output by the CV conversion circuit 44 when there is no foreign object X1 in the vicinity of the front end portion 5a of the door panel 5, and the second threshold value is set. Th2 is set to a value larger than the first threshold value Th1.

  The foreign object proximity determination circuit 71a receives the detection value input from the CV conversion circuit 44 and the first value when drive power is supplied to the slide motor 26 via the common brush 26a and the high speed brush 26c. The threshold value Th1 is compared. On the other hand, when drive power is supplied to the slide motor 26 via the common brush 26a and the low speed brush 26b, the foreign object proximity determination circuit 71a receives the detection value input from the CV conversion circuit 44 and the second value. To the threshold value Th2.

Next, the operation of the electric sliding door device 1 will be described generally.
When an open signal is input from the operation switch 31, the control circuit device 71 drives the slide motor 26 in a direction for opening the door panel 5. At this time, the control circuit device 71 supplies drive power to the slide motor 26 via the common brush 26a and the high speed brush 26c, and drives the slide motor 26 at high speed. Then, when the door panel 5 is disposed at the fully open position Po, the control circuit device 71 stops the slide motor 26.

On the other hand, when a closing signal is input from the operation switch 31, the control circuit device 71 performs a slide motor driving process shown in FIG.
When a closing signal is input from the operation switch 31, the control circuit device 71 compares the inclination angle θ 1 detected by the inclination sensor 61 with a predetermined reference inclination angle θs (see FIG. 5), and the door panel 5. Is determined to be inclined more than a predetermined reference inclination angle θs toward the front side in the moving direction when the door panel 5 is closed (step S10). The reference inclination angle θs is an inclination angle when the door panel 5 is inclined forward (that is, the front side in the movement direction during the closing operation), and is the weight of the door panel 5 applied to the front side in the movement direction during the closing operation. Is set to an angle at which the predetermined size becomes a predetermined size.

  Then, the control circuit device 71 is configured such that the inclination angle θ1 is an inclination angle toward the front side in the movement direction when the door panel 5 is closed, and is equal to or larger than the reference inclination angle θs (reference inclination amount) (step S10: YES). ), The drive power is supplied to the slide motor 26 via the common brush 26a and the low speed brush 26b, and the door panel 5 is slid to the fully closed position Pc side (step S50).

  On the other hand, when the tilt angle θ1 is smaller than the reference tilt angle θs (step S10: NO), the control circuit device 71 determines whether the load applied to the slide motor 26 based on the rotation detection signal is equal to or greater than a predetermined reference value. It is determined whether or not (step S20). Incidentally, the case where the inclination angle θ1 is smaller than the reference inclination angle θs means that the inclination angle to the front side in the moving direction at the closing operation time of the door panel 5 is smaller than the reference inclination angle θs, or the door panel 5 is closed operation. It is a case where it inclines to the back side of the moving direction. The reference value is set based on a measurement result obtained by performing an experiment in advance on the pulse width of the rotation detection signal when a predetermined load is applied to the slide motor 26.

  When the load applied to the slide motor 26 is larger than the reference value (step S20: YES), the control circuit device 71 supplies drive power to the slide motor 26 via the common brush 26a and the low speed brush 26b, and the door panel 5 is slid to the fully closed position Pc side (step S50). On the other hand, when the load applied to the slide motor 26 is smaller than the reference value (step S20: NO), the control circuit device 71 supplies drive power to the slide motor 26 via the common brush 26a and the high speed brush 26c. Then, the door panel 5 is slid to the fully closed position Pc side (step S30).

  Further, when the drive power is supplied to the slide motor 26 via the common brush 26a and the high speed brush 26c, the control circuit device 71 is input from the CV conversion circuit 44 in the foreign object proximity determination circuit 71a. The detected value is compared with the first threshold value (step S40). If the detected value is equal to or greater than the first threshold Th1 (step S40: YES), the foreign object proximity determination circuit 71a determines that there is a foreign object X1 that is close to the front end 5a of the door panel 5. When the foreign object X1 approaching the front end 5a of the door panel 5 is detected by the foreign object proximity determination circuit 71a based on the detected value being equal to or greater than the first threshold value Th1, the control circuit device 71 detects the common brush 26a. Then, drive power is supplied to the slide motor 26 via the low speed brush 26b (step S50). On the other hand, when the detected value is smaller than the first threshold value Th1 (step S40: NO), the control circuit device 71 compares the detected value with the second threshold value Th2 (step S60).

  When the detected value is larger than the second threshold Th2 (step S60: YES), the foreign object proximity determination circuit 71a determines that there is a foreign object X1 that is further closer to the front end 5a of the door panel 5. When the foreign object X1 that is further closer to the front end portion 5a of the door panel 5 is detected by the foreign object proximity determination circuit 71a based on the detected value being equal to or greater than the second threshold Th2, the control circuit device 71 detects the common brush. The drive power is supplied through 26a and the high speed brush 26c to reverse the slide motor 26, and the door panel 5 is moved to the fully open position Po side by a predetermined distance (step S80). Thereafter, the control circuit device 71 stops the slide motor 26 (step S90) and ends the slide motor driving process.

  On the other hand, when the detected value is smaller than the second threshold Th2 (step S60: NO) and the half latch detection signal is not input (step S70: NO), the control circuit device 71 performs step Proceed to S20. When the half latch detection signal is input (step S70: YES), the control circuit device 71 stops the slide motor 26 (step S90) and ends the slide motor driving process. In addition, after the half latch detection signal is input and the slide motor 26 is stopped, the control circuit device 71 drives the closer motor 29 to the position where the door panel 5 can be locked by the lock mechanism, that is, the fully closed position Pc. Move. When the door panel 5 is disposed at the fully closed position Pc, the control circuit device 71 stops the closer motor 29.

  When the contact detection signal is input from the ON-OFF detection unit 43 during the closing operation of the door panel 5, the control circuit device 71 supplies driving power via the common brush 26a and the high speed brush 26c and slides. After the motor 26 is reversed and the door panel 5 is moved to the fully open position Po side by a predetermined distance, the slide motor 26 is stopped.

As described above, the present embodiment has the following effects.
(1) Switching between the high-speed brush 26c and the low-speed brush 26b energized together with the common brush 26a is performed according to the load applied to the slide motor 26. Therefore, it is possible to switch between the high speed brush 26c and the low speed brush 26b in the slide motor 26 without depending on the position information of the door panel 5. As a result, the position of the door panel 5 for switching between the high-speed brush 26c and the low-speed brush 26b does not have to be set according to the shape of the rails 12 to 14 of the vehicle 2 as in the prior art. The manufacturing cost of the door device 1 can be reduced.

  (2) The detection value output from the CV conversion circuit 44 exceeds the first threshold Th1 when driving power is supplied to the slide motor 26 via the common brush 26a and the high speed brush 26c. When the foreign object X1 close to the front end portion 5a of the door panel 5 is detected based on the above, the control circuit device 71 supplies drive power to the slide motor 26 via the common brush 26a and the low speed brush 26b. Accordingly, when the foreign object X1 comes close to the front end portion 5a of the door panel 5, the moving speed of the door panel 5 is reduced regardless of the load applied to the slide motor 26. Therefore, before the foreign object X1 and the front end portion 5a of the door panel 5 come into contact with each other, The foreign object X1 can be easily moved away from the front end portion 5a of the door panel 5. As a result, contact between the foreign matter X1 and the door panel 5 can be suppressed.

  (3) When the detected value output from the CV conversion circuit 44 exceeds the first threshold Th1 during the closing operation of the door panel 5, the drive power is supplied to the slide motor 26 via the common brush 26a and the low speed brush 26b. When the detected value exceeds the second threshold Th2, the slide motor 26 is reversed and the door panel 5 is moved to the fully open position Po side by a predetermined distance. Accordingly, when the foreign object X1 comes close to the front end portion 5a of the door panel 5, the moving speed of the door panel 5 is reduced regardless of the load applied to the slide motor 26. Therefore, before the foreign object X1 and the front end portion 5a of the door panel 5 come into contact with each other, The foreign object X1 can be easily moved away from the front end portion 5a of the door panel 5. Furthermore, when the detection value output from the CV conversion circuit 44 exceeds the second threshold Th2, the movement of the door panel 5 toward the fully closed position Pc is stopped, so that the contact between the foreign matter X1 and the door panel 5 is obviated. Can be prevented. As described above, when the rotation of the slide motor 26 is controlled according to the two threshold values Th1 and Th2 for detecting the foreign matter X1 adjacent to the front end portion 5a of the door panel 5, the contact between the foreign matter X1 and the door panel 5 is prevented. Reliability can be increased. Further, even when the door panel 5 is in contact with the foreign object X1, it is possible to suppress a large pinching load from being applied to the foreign object X1 from the door panel 5.

  (4) When the control circuit device 71 detects that the door panel 5 is inclined more than the predetermined reference inclination angle θs toward the front side in the moving direction when the door panel 5 is closed, the common brush 26a and the low speed Drive power is supplied to the slide motor 26 via the brush 26b. Therefore, for example, when the door panel 5 comes into contact with the foreign object X1 due to the weight of the door panel 5 on the front side in the moving direction of the door panel 5, the vehicle is on a downhill where a large pinching load is easily applied to the foreign object X1 from the door panel 5. When 2 is arrange | positioned, the moving speed of the door panel 5 becomes small, and the contact with the door panel 5 and the foreign material X1 is suppressed.

In addition, you may change embodiment of this invention as follows.
In the above embodiment, the present invention has been described in detail with the electric slide door device 1 that opens and closes the entrance / exit 4 provided on the left side surface of the vehicle 2 by sliding the door panel 5 by the driving force of the slide motor 26. However, any opening / closing device other than the electric sliding door device 1 of the above embodiment can be used as long as it is an opening / closing device that opens and closes the opening by moving the door panel with a drive motor having a common brush, a low speed brush, and a high speed brush. The invention may be applied. For example, you may apply this invention to the opening / closing apparatus which opens and closes the opening part provided in the back of the vehicle with the flip-up-type back door.

  In the above embodiment, the tilt sensor 61 detects the tilt angle θ1 in the moving direction of the door panel 5 with respect to the straight line L2 orthogonal to the horizontal line L1. However, the tilt sensor 61 may be a known tilt sensor, and is not limited to the one that detects the tilt angle θ1 as long as the tilt amount in the moving direction of the door panel 5 can be detected.

  The electric sliding door device 1 may be configured not to include the tilt sensor 61. In this case, step S10 is omitted in the slide motor driving process. If it does in this way, a number of parts can be reduced and the manufacturing cost of electric slide door device 1 can be reduced more.

  In the above embodiment, when the detection value output from the CV conversion circuit 44 is larger than the second threshold Th2, the control circuit device 71 supplies the drive power via the common brush 26a and the high speed brush 26c. Then, the slide motor 26 is reversed to move the door panel 5 toward the fully open position Po by a predetermined distance. However, when the detected value output from the CV conversion circuit 44 is larger than the second threshold Th2, the control circuit device 71 supplies driving power via the common brush 26a and the low speed brush 26b to supply the slide motor 26. May be reversed and the door panel 5 may be moved to the fully open position Po side by a predetermined distance. When the detected value is larger than the second threshold Th2, the control circuit device 71 may stop the door panel 5 by stopping the supply of drive power to the slide motor 26.

  In the above embodiment, the load applied to the slide motor 26 is detected based on the pulse width of the rotation detection signal output from the rotation sensor 27. However, the load applied to the slide motor 26 may be detected, for example, by detecting the current value of the current supplied to the slide motor 26 with a current sensor or the like. In this case, the current sensor outputs a voltage signal corresponding to the current value of the current supplied to the slide motor 26 to the control circuit device 71 as a load detection signal. Further, the load applied to the slide motor 26 may be detected based on both the rotation detection signal output from the rotation sensor 27 and the current value of the current supplied to the slide motor 26. In this way, the detection accuracy of the load applied to the slide motor 26 is improved.

  In the embodiment described above, the foreign object proximity determination circuit 71a has two threshold values, the first threshold value Th1 and the second threshold value Th2, in order to detect the foreign object X1 that is close to the front end 5a of the door panel 5. However, the foreign object proximity determination circuit 71a may be configured to have only one threshold value for detecting the foreign object X1 that is close to the front end portion 5a of the door panel 5. In this case, the foreign object proximity determination circuit 71a compares the detection value output from the CV conversion circuit 44 with a threshold value, and when the detection value is larger than the threshold value, the foreign object X1 adjacent to the front end 5a of the door panel 5 is detected. Judge that there is. When the foreign object proximity determination circuit 71a determines that there is a foreign object X1 close to the front end 5a, the control circuit device 71 reverses the slide motor 26 and moves the door panel 5 to the fully open position Po side by a predetermined distance.

  In the above embodiment, the foreign object proximity determination circuit 71 a is provided inside the control circuit device 71. However, the foreign object proximity determination circuit 71 a may be provided so as to be subsequent to the control circuit device 71 and upstream of the CV conversion circuit 44.

  In the above embodiment, the proximity sensor configured by the CV conversion circuit 44, the sensor electrode 56, and the foreign object proximity determination circuit 71a is a conductive foreign object X1 existing between the door panel 5 and the periphery of the entrance 4 It is a capacitance type proximity sensor that detects non-contact. However, the proximity sensor provided in the electric sliding door device 1 is not limited to the capacitive type, and a high-frequency transmission type proximity sensor using electromagnetic induction may be used.

  The electric sliding door device 1 does not include the proximity sensor configured by the CV conversion circuit 44, the sensor electrode 56, and the foreign object proximity determination circuit 71a, but includes the sensor main body 42 and the ON-OFF detection unit 43. A configuration including only a pressure-sensitive sensor may be used. In this case, the sensor electrode 56, the CV conversion circuit 44, and the foreign object proximity determination circuit 71a of the sensor body 42 can be omitted.

The perspective view of the vehicle provided with the electric slide door apparatus. The side view of the vehicle provided with the electric slide door apparatus. (A) And (b) is sectional drawing of a sensor main body. The block diagram which shows the electric constitution of an electric slide door apparatus. Explanatory drawing for demonstrating the inclination state of a door panel. The flowchart which shows a slide motor drive process.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Electric slide door apparatus, 2 ... Vehicle, 3 ... Body as non-moving body, 4 ... Entrance / exit as opening part, 5 ... Door panel as opening / closing body, 26 ... Slide motor as drive motor, 26a ... Common brush, 26b ... low speed brush, 26c ... high speed brush, 27 ... rotation sensor as load detection means, 42 ... sensor body, 44 ... CV conversion circuit constituting proximity sensor, 61 ... tilt detection means Inclination sensor 71 ... Control circuit device as control means, 71a ... Foreign object proximity determination circuit constituting proximity sensor, Pc ... Fully closed position, Po ... Fully open position, Th1 ... First threshold, Th2 ... Second threshold, X1 is a foreign object, θ1 is a tilt angle as a tilt amount, θs is a reference tilt angle as a reference tilt amount.

Claims (5)

A common brush, a low-speed brush, and a high-speed brush. When driving power is supplied via the common brush and low-speed brush, driving power is supplied via the common brush and high-speed brush. A drive source for rotating the opening / closing body between a fully closed position for closing the opening formed in the conductive non-moving body and a fully open position for opening the opening, which is rotated at a lower speed than the case A drive motor,
Load detection means for detecting a load of the driving motor being driven and outputting a load detection signal corresponding to the detected load;
Control means for controlling the rotation of the drive motor by switching between the high-speed brush and the low-speed brush for supplying drive power to the drive motor together with the common brush based on the load detection signal. An opening / closing device characterized by that. The switchgear according to claim 1,
Providing a proximity sensor for non-contact detection of a foreign object that is close to the closed end on the front side in the movement direction during the closing operation of the opening and closing body,
When the proximity sensor detects the proximity of the foreign matter when the drive power is supplied to the drive motor via the common brush and the high-speed brush, the control means detects the common brush and the low-speed An opening / closing device for supplying a driving power to the driving motor via a brush. The switchgear according to claim 2, wherein
The proximity sensor includes a sensor main body that is disposed at the closed side end and outputs a proximity signal according to a distance between the foreign object,
When the detection value based on the proximity signal exceeds a first threshold value for detecting the foreign object close to the closed end during the closing operation of the opening / closing body, the control means is configured to detect the common brush and the low speed. A second power source for supplying the driving power to the driving motor via a brush for detecting the foreign matter in proximity to the closed end where the detection value is set to a value larger than the first threshold value. An opening / closing apparatus that controls the rotation of the drive motor so as to stop the movement of the opening / closing body toward the fully closed position when a threshold value is exceeded. The switchgear according to any one of claims 1 to 3,
Inclination detecting means for detecting the amount of inclination in the moving direction of the opening and closing body,
When the control means detects that the opening / closing body is inclined more than a predetermined reference inclination amount toward the front side in the moving direction of the opening / closing body based on the detection result of the inclination detecting means. An opening / closing device that supplies driving power to the driving motor through the common brush and the low-speed brush. The switchgear according to any one of claims 1 to 4,
The non-moving body is a vehicle body;
The opening / closing apparatus, wherein the opening / closing body is a door panel that is slidably moved along the front-rear direction of the vehicle to open and close the opening provided on a side of the vehicle.

Images