JP2009079406A - Power door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a power door which allows use of a pinching detection sensor between a swinging door and a sliding one in common. <P>SOLUTION: This power door (200) makes at least either of the swinging door (300) and the sliding one (400) opened/closed by an opening/closing mechanism with a power source, and brings opening/closing ends of both the doors closest to each other in the closed state of both the doors. The power door comprises an obstacle sensor (600) which is provided in either of two members having a distance between them increased/decreased along with the opening/closing of at least either of the swinging door and the sliding one, and a control means for inhibiting the operation of the opening/closing mechanism in the direction of the closing of at least either of the swinging door and the sliding one, on the basis of a detection signal from the obstacle sensor. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a power door, and more particularly, to a power door in which at least one of a swing door and a slide door is opened and closed by an opening and closing mechanism having a power source, and the opening and closing ends thereof are closest to each other when both the doors are closed.

  A power door of a vehicle or the like is opened and closed by an opening / closing mechanism having a power source. In one-box and minivan vehicles, the side door on the front seat side is often a swing door and the side door on the rear seat side is often a sliding door. The swing door is opened and closed by a swing motion centered on the hinge, and the slide door is opened and closed by a slide motion along the rail.

  An open / close mechanism having a power source is provided for the slide door (see, for example, Patent Document 1), and an open / close mechanism having a power source is also provided for the swing door, if necessary (see, for example, Patent Document 2). .

The open / close ends of the swing door and the slide door come closest when both doors are closed. Since this portion is likely to cause pinching of a human body or the like, a pinching sensor is provided at the open / close end of the sliding door to prevent it, and the sliding door is stopped based on the detection signal (for example, And Patent Document 3).
JP 2004-322725 A (paragraph numbers 0015-0017, 0032-0034, FIGS. 1, 2 and 5) Japanese Patent Laying-Open No. 2005-271825 (paragraph numbers 0016-0025, FIGS. 1 and 2) JP-A-10-338029 (paragraph numbers 0012-0014, 0032-0034, FIGS. 1 and 3)

  The pinching of the human body or the like can also occur when the swing door is closed. In order to prevent such pinching, it is necessary to provide a pinching sensor on the swing door. However, if the pinching sensor is provided on the swing door in addition to the slide door, the number of parts and the number of man-hours increase.

  Therefore, an object of the present invention is to realize a power door in which a pinch detection sensor is shared between a swing door and a slide door.

  In the invention according to claim 1 for solving the problem, at least one of the swing door and the slide door is opened and closed by an opening and closing mechanism having a power source, and the opening and closing ends thereof are closest to each other when both the doors are closed. Based on a failure sensor provided on one of the two members that is a power door and the distance between the swing door and the sliding door increases or decreases with the opening and closing of at least one of the swing door and the detection signal of the failure sensor The power door includes a control unit that prohibits the opening / closing mechanism from moving in a direction in which at least one of the swing door and the slide door is closed.

  According to a second aspect of the present invention for solving the problem, the fault sensor has a flexible objective electrode and a counter electrode spaced apart from the objective electrode, and the control means is just before the doors are fully closed. When the capacitance of the objective electrode increases without responding to the detection signal of the fault sensor in the above, or when the objective electrode comes into contact with the counter electrode, the operation of the opening / closing mechanism is prohibited. It is a power door as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned.

  According to a third aspect of the present invention for solving the problem, the swing door includes an end face facing the open / close end of the slide door with a gap in a state where both the doors are closed, and the slide door from the end face. The sliding door has an end surface facing the front end of the edge of the swing door with a gap in a state where both the doors are closed, and the swing door from the end surface. An outward surface extending in the direction of the edge portion has a flange portion facing the inward surface of the edge portion with a gap, and the failure sensor is attached to the flange portion of the slide door via a support member. In a state where both the doors are closed, a portion from the end surface of the swing door to the inward surface of the edge portion and a front end of the flange portion of the slide door to the outward surface A power door according to claim 2, characterized in that fall between min.

  According to a fourth aspect of the present invention for solving the problem, the counter electrode of the fault sensor is configured so that the end surface of the swing door and the inward surface of the edge portion sandwich the objective electrode when both the doors are closed. The power door according to claim 3, further comprising a first electrode portion and a second electrode portion that face each other.

  According to a fifth aspect of the invention for solving the problem, the objective electrode of the fault sensor has a first parallel portion and a second parallel portion that are respectively parallel to the first electrode portion and the second electrode portion of the counter electrode. The power door according to claim 4.

  According to a sixth aspect of the present invention for solving the problem, the support member includes a U-shaped portion that fits into the flange portion, and an outer end along the end surface of the sliding door from the opening end of the U-shaped portion. The power door according to claim 5, further comprising an extending portion extending in a direction, wherein one side of the objective electrode is coupled to a distal end of the extending portion of the support member.

  The invention according to claim 7 for solving the problem is characterized in that the objective electrode has a step for avoiding an edge of the swing door in a state where both the doors are closed. It is a power door as described in.

  The invention according to claim 8 for solving the problem is the power door according to claim 7, wherein the step has a slope.

  According to the invention according to claim 1, at least one of the swing door and the slide door is opened and closed by an opening / closing mechanism having a power source, and when both the doors are closed, the power doors whose opening and closing ends are closest to each other are: Based on a failure sensor provided on one of the two members whose distance between the swing door and the sliding door increases or decreases with opening and closing of the swing door and the sliding door, and based on a detection signal of the failure sensor, Since the control means for prohibiting the operation of the opening / closing mechanism in the direction in which at least one of the slide doors closes is provided, it is possible to realize a power door in which a pinch detection sensor is used in common for the swing door and the slide door.

  According to a second aspect of the present invention, the fault sensor includes a flexible objective electrode and a counter electrode spaced from the objective electrode, and the control means provides the fault sensor immediately before the doors are fully closed. When the capacitance of the objective electrode increases without responding to the detection signal, or when the objective electrode comes into contact with the counter electrode, the operation of the opening / closing mechanism is prohibited. It is possible to detect pinching in both the unexposed portion and the unexposed portion.

  According to a third aspect of the present invention, the swing door extends in the direction of the slide door from the end surface facing the open / close end of the slide door with a gap in a state where both the doors are closed. The sliding door includes an end face facing the front end of the edge of the swing door with a gap in a state where both the doors are closed, and extends from the end face in the direction of the swing door. The outwardly facing surface has a flange portion facing the inwardly facing surface of the edge with a gap, and the failure sensor is attached to the flange portion of the sliding door via a support member, In a state where both are closed, the portion from the end surface of the swing door to the inward surface of the edge and the portion from the tip of the flange portion of the slide door to the outward surface In, it is possible to detect the entrapment by sandwiching the swinging door by the slide door in a single sensor.

  According to a fourth aspect of the present invention, the counter electrode of the fault sensor is opposed to the end surface of the swing door and the inward surface of the edge portion with the objective electrode in between in a state where both the doors are closed. Since the first electrode portion and the second electrode portion are provided, it is possible to detect the pinching caused by sliding the door and the pinching caused by the door swing.

  According to the invention according to claim 5, since the objective electrode of the fault sensor has the first parallel portion and the second parallel portion that are parallel to the first electrode portion and the second electrode portion of the counter electrode, respectively, the slide door It is possible to make the same timing for detecting the pinching by the slide and the pinching by the swing of the swing door. In addition, wherever the pinch position is, the timing of pinching detection due to crushing is the same.

  According to the invention which concerns on Claim 6, the said supporting member is extended outward along the end surface of the said slide door from the U-shaped part fitted to the said flange part, and the front end of the opening side of this U-shaped part. Since the objective electrode is coupled to the tip of the extension part of the support member, the objective electrode is placed between the swing door and the slide door in a state where both doors are closed. It can function as a parting seal.

  According to the invention of claim 7, since the objective electrode has a step for avoiding the edge of the swing door in a state where both the doors are closed, pinching detection is performed with the edge of the swing door. It can be made effective until the flange portion of the sliding door overlaps.

  According to the invention which concerns on Claim 8, since the said level | step difference has a slope, the load at the time of closing of both doors can be disperse | distributed.

The best mode for carrying out the invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the best mode for carrying out the invention.
FIG. 1 is a left side view showing the appearance of a vehicle equipped with a power door. As shown in FIG. 1, the vehicle 100 is equipped with a power door 200 as a side door. The power door 200 includes a swing door 300 on the front seat side and a slide door 400 on the rear seat side. The swing door 300 and the slide door 400 are each opened and closed by a known opening / closing mechanism having a power source.

  The power door 200 is an example of the best mode for carrying out the invention. The configuration of the power door 200 shows an example of the best mode for carrying out the invention relating to the power door.

  The front part of the swing door 300 is attached to the body of the vehicle 100 via a hinge 310, and is opened and closed by a reciprocating swinging motion outward about the hinge 310. As a result, the rear end of the swing door 300 becomes the open / close end.

  The rear portion of the slide door 400 is attached to the body of the vehicle 100 via the rail 410 and opens and closes by a reciprocating slide motion to the rear along the rail 410. As a result, the front end of the slide door 400 becomes the open / close end.

  When both the swing door 300 and the slide door 400 are closed, the distance between the rear end of the swing door 300 and the front end of the slide door 400 is minimized. That is, when both doors are closed, their open / close ends are closest to each other.

  In FIG. 2, the structure of the opening-and-closing end part of both doors is shown typically. 2 corresponds to a cross-sectional view of the AA portion of the power door 200 shown in FIG. As shown in FIG. 2, the swing door 300 and the slide door 400 are closed on the vehicle exterior side of the center pillar 500, and their ends face each other with a gap. In FIG. 2, the upper side is the outside of the vehicle, the lower side is the inside of the vehicle, the right is the front, and the left is the rear. The same applies hereinafter.

  The swing door 300 has an end surface 302 that faces the open / close end of the slide door 400 with a gap, and an edge 304 that extends from the end surface 302 in the direction of the slide door 400. The edge portion 304 extends along the outer surface of the swing door 300. The end surface 302 is the inside of the vehicle as viewed from the edge portion 304.

  The end surface 302 and the edge portion 304 extend over the entire height of the swing door 300 in a direction perpendicular to the paper surface (vertical direction of the vehicle 100). The end surface 302 is an example of an end surface in the present invention. The edge part 304 is an example of the edge part in this invention.

  The sliding door 400 has an end surface 402 that faces the tip of the edge portion 304 of the swing door 300 with a gap, and a flange portion 404 that extends from the end surface toward the swing door 300. The flange portion 404 is the inside of the vehicle as viewed from the end surface 402.

  The front end of the flange portion 404 is opposed to the end surface 302 of the swing door 300 with a gap, and the outward surface is opposed to the inward surface of the edge portion 304 of the swing door 300 with a gap.

  The end surface 402 and the flange portion 404 extend over the entire height of the sliding door 400 in a direction perpendicular to the paper surface (a vertical direction of the vehicle 100). The end surface 402 is an example of an end surface in the present invention. The flange portion 404 is an example of the flange portion in the present invention.

  A failure sensor 600 is provided on the flange portion 404 of the slide door 400. The failure sensor 600 enters between the portion from the outward surface to the tip of the flange portion 404 and the portion from the inward surface to the end surface 302 of the edge 304 of the swing door 300.

  The failure sensor 600 includes an objective electrode 602 and a counter electrode 604 that faces the objective electrode 602 with a gap. The objective electrode 602 and the counter electrode 604 are attached to the flange portion 404 via the support member 610. The support member 610 is made of an insulating material. The support member 610 has a U-shaped structure that fits into the flange portion 404.

  The fault sensor 600 is an example of a fault sensor in the present invention. The objective electrode 602 is an example of the objective electrode in the present invention. The counter electrode 604 is an example of the counter electrode in the present invention. The support member 610 is an example of a support member in the present invention.

  The objective electrode 602 is an electrode floated from the ground, and is configured in a generally tubular shape so as to surround the counter electrode 604. The counter electrode 604 is an electrode connected to the ground, and extends in parallel inside the objective electrode 602.

  The counter electrode 604 includes a first electrode portion 642 that faces the end surface 302 of the swing door 300 with the objective electrode 602 interposed therebetween, and a second electrode that faces the inward surface of the edge 304 of the swing door 300 with the objective electrode 602 interposed therebetween. An electrode portion 644 is provided. The first electrode portion 642 is an example of the first electrode portion in the present invention. The second electrode portion 644 is an example of the second electrode portion in the present invention.

  The objective electrode 602 includes a first parallel portion 622 parallel to the first electrode portion 642 of the counter electrode 604 and a second parallel portion 624 parallel to the second electrode portion 644 of the counter electrode 604. The first parallel portion 622 is an example of the first parallel portion in the present invention. The second parallel portion 624 is an example of a second parallel portion in the present invention.

  The objective electrode 602 is made of a flexible conductive material. As the flexible conductive material, for example, conductive rubber or conductive plastics is used. The counter electrode 604 is made of a conductive material. The material of the counter electrode 604 may be either a flexible conductive material or a non-flexible conductive material. For example, the same material as the objective electrode 602 or a metal conductor is used.

  The objective electrode 602 and the counter electrode 604 constitute a capacitor. Thus, the fault sensor becomes a capacitive fault sensor. When the exposed portion of the human body such as bare hands or bare feet approaches or contacts the objective electrode 602, the capacitance of the human body increases because the capacitance of the human body is connected in parallel. Such an increase in capacitance is used to detect the approach or contact of a human body. Hereinafter, the approach or contact of the human body is simply referred to as contact.

  On the other hand, when a non-exposed portion of a human body such as a gloved hand or a shoe-worn foot comes into contact with the objective electrode 602, the capacitance does not increase. However, when the crushed objective electrode 602 contacts the counter electrode 604, the objective electrode 602 and the counter electrode 604 are short-circuited. Such a short-circuit state is used for detecting pinching of an unexposed human body.

  The obstacle sensor is not limited to the electrostatic capacity type, and for example, as shown in FIG. 3, the contact of an object may be detected by a piezoelectric type obstacle sensor in which a piezoelectric element 606 is supported by a bracket 612. In addition, a method using an appropriate physical quantity such as a pressure or electric resistance of gas or liquid may be used. Hereinafter, an example of the capacitance method will be described, but the same applies to other methods.

  The failure sensor 600 may be attached to the swing door 300 instead of the slide door 400, or may be attached to the center pillar 500. Since the gap between these three increases and decreases with the opening and closing of the swing door 300 and the slide door 400, it is possible to detect pinching by disposing a failure sensor. The swing door 300, the slide door 400, and the center pillar 500 are an example of one of two members that increase or decrease the distance between the swing door and the slide door according to the present invention.

  FIG. 4 shows the relationship between the open / close ends of the doors when the swing door 300 and the slide door 400 are closed. FIG. 4A shows a state in which the slide door 400 is closed where the swing door 300 is already closed. As shown by the arrow, the slide door 400 slides forward, and then slides obliquely in the in-vehicle direction to be in a closed state as shown in FIG.

  In the process of sliding the slide door 400, the tip of the flange portion 404 approaches the tip of the edge portion 304 of the swing door 300, so that a human body or the like may be caught in this portion.

  FIG. 4B shows a state where the swing door 300 is closed where the slide door 400 is already closed. As shown by the arrow, the swing door 300 swings in the in-vehicle direction and is in a closed state as shown in FIG.

  In such a swinging process of the slide door 400, the inward surface of the edge portion 304 approaches the outward surface of the flange portion 404 of the slide door 400, so that a human body or the like may be caught in this portion.

  FIG. 5 shows a block diagram of the open / close control system of the power door 200. As shown in FIG. 5, the output signal of the failure sensor 600 is input to the determination unit 703 through the preprocessing unit 701, and the output signal of the determination unit 703 is input to the control units 705a and 705b.

  A user open / close command is also input to the control units 705a and 705b through the open / close switches 707a and 707b. The control units 705a and 705b are control units for the swing door 300 and the slide door 400, respectively, and the open / close switches 707a and 707b are open / close switches for the swing door 300 and the slide door 400, respectively.

  The control units 705a and 705b control the power sources 800a and 800b of the opening / closing mechanisms for the swing door 300 and the slide door 400, respectively, based on the user's opening / closing command and the output signal of the determination unit 703. A portion including the determination unit 703 and the control units 705a and 705b is an example of a control unit in the present invention. These are constituted by, for example, a microcomputer.

  As the power sources 800a and 800b, for example, motors or the like are used. The power sources 800a and 800b are not limited to motors, and may be appropriate power sources such as hydraulic, pneumatic, or electric cylinders. Hereinafter, an example of a motor will be described, but the same applies to other power sources.

  FIG. 6 shows an electrical configuration of a part including the failure sensor 600 and the preprocessing unit 701. As shown in FIG. 6, the failure sensor 600 is electrically configured by connecting an inductor L and a resistor R in parallel to a capacitor C including an objective electrode 602 and a counter electrode 604.

The preprocessing unit 701 includes an oscillation circuit 701a and a waveform shaping circuit 701b, and an LCR parallel circuit is commonly connected to the oscillation circuit 701a and the waveform shaping circuit 701b.
The oscillation frequency of the oscillation circuit 701a is given by the following equation.

here,
C ′: a combined value L ′ of the capacitance of the capacitor C and the capacitance of the oscillation circuit L ′: a combined value of the inductance of the inductor L and the inductance of the oscillation circuit. As a result, the capacitance C of the objective electrode 602 is converted into the frequency f. The frequency f decreases and increases corresponding to the increase and decrease of the capacitance C, respectively.

  The waveform shaping circuit 701b uses the voltage across the LCR parallel circuit as an input signal, shapes the waveform into a rectangular wave, and outputs it. 7A and 7B show an input signal waveform and an output signal waveform of the waveform shaping circuit 701b, respectively.

  The waveform shaping circuit 701b shapes a sine wave AC voltage having a DC bias as shown in (a) into a rectangular wave signal as shown in (b) using the waveform shaping threshold Vp. The frequency of the rectangular wave signal matches the frequency of the sine wave AC voltage. The frequency of the sine wave AC voltage is the oscillation frequency f of the oscillation circuit 701a.

  As a result, a rectangular wave signal having a frequency corresponding to the capacitance C is obtained. The frequency of the rectangular wave signal decreases and increases corresponding to the increase and decrease of the capacitance C, respectively. 8A and 8B show the decrease in the oscillation frequency accompanying the increase in the capacitance C and the corresponding decrease in the frequency of the rectangular wave signal.

  When the objective electrode 602 contacts the counter electrode 604, the LCR parallel circuit is in a short circuit state. For this reason, the input signal of the waveform shaping circuit 701b disappears and becomes 0 as shown in FIG. 9A, and the output signal of the waveform shaping circuit 701b correspondingly becomes as shown in FIG. 9B. 0.

  The determination unit 703 measures the frequency of the rectangular wave signal input from the waveform shaping circuit 701b. Frequency measurement is performed by measuring the number of rising edges of a rectangular wave within a measurement period (for example, 1 mS).

  The determination unit 703 also compares the frequency measurement value with a predetermined threshold value to determine whether there is contact or pinching. Threshold values are prepared for contact determination and pinching determination, respectively. Hereinafter, the threshold value for contact determination is referred to as a contact threshold value, and the threshold value for pinching determination is referred to as a pinching threshold value. The sandwiching threshold is smaller than the contact threshold.

  Based on these two types of threshold values, contact between the exposed human body and the sandwiched non-exposed human body is distinguished and determined. The control units 705a and 705b control the power sources 800a and 800b based on the determination signal and the user's opening / closing command, respectively.

  When it is determined that the exposed human body or the like is in contact or the non-exposed human body or the like is sandwiched, the control units 705a and 705b prohibit the sandwiching by prohibiting the operation of the opening / closing mechanism in the direction in which the door is closed. At this time, the opening / closing mechanism may be operated in the direction in which the door is reversed.

  FIG. 10 shows a contact detection state. FIG. 10A shows a state in which the exposed human body 10 is in contact with the obstacle sensor 600 in the process of closing the slide door 400. At this time, the capacitance of the objective electrode 602 of the obstacle sensor 600 increases, and based on this, the contact of the exposed human body 10 is detected, so that the sliding door 400 is stopped or reversed by the control unit 705b.

  Stopping or reversing of the sliding door 400 is immediately performed as soon as contact is detected by the failure sensor 600 at any stage after the sliding door 400 starts to slide in the closing direction as well as just before closing.

  FIG. 10B shows a state in which the exposed human body 10 is in contact with the obstacle sensor 600 in the process of closing the swing door 300. At this time, the capacitance of the objective electrode 602 of the obstacle sensor 600 increases, and based on this, the contact of the exposed human body 10 is detected, so that the swing door 300 is stopped or reversed by the control unit 705a.

  The swing door 300 is stopped or reversed not only immediately before closing as shown in the figure, but also immediately after contact detection by the failure sensor 600 at any stage after the swing door 300 starts swinging in the closing direction.

  FIG. 11 shows a pinching detection state. FIG. 11A shows a state where the non-exposed human body 10 ′ is sandwiched between the slide door 400 and the swing door 300 in the process of closing the slide door 400. At this time, the objective electrode 602 of the failure sensor 600 is crushed and the first parallel portion 622 is short-circuited to the first electrode portion 642. Based on this, it is detected that the non-exposed human body 10 ′ is caught, and the control unit 705 b stops or reverses the slide door 400.

  FIG. 11B shows a state in which the non-exposed human body 10 ′ is sandwiched between the swing door 300 and the slide door 400 in the process of closing the swing door 300. At this time, the objective electrode 602 of the failure sensor 600 is crushed and the second parallel portion 624 is short-circuited to the second electrode portion 644. Based on this, it is detected that the non-exposed human body 10 'is caught, and the swing door 300 is stopped or reversed by the control unit 705a.

  Since the first parallel part 622 and the first electrode part 642 and the second parallel part 624 and the second electrode part 644 are parallel to each other, the slide door 400 is closed and the swing door 300 is closed. Can be detected at a unified timing.

  FIG. 12 shows an example of a specific configuration of the failure sensor 600. In FIG. 12, the same parts as those in FIG. As shown in FIG. 12, the support member 610 of the failure sensor 600 has an extended portion 614. The extending portion 614 extends outward along the end surface 402 of the sliding door 400 to the same level as the outer surface of the sliding door 400. The extension part 614 is an example of the extension part in the present invention.

  In the objective electrode 602 of the obstacle sensor 600, the extended portion of the second parallel portion 624 rises in an inverted S shape, and the tip thereof is coupled laterally to the tip of the extended portion 614 of the support member 610. Accordingly, the extended portion of the second parallel portion 624 has a slope 626 at the rising portion and a seal surface 628 at the same level as the outer surface of the slide door 400.

  The sealing surface 628 has a step d with respect to the second parallel portion 624. This level difference d is a level difference enough to avoid the edge 304 of the swing door 300. The step d is an example of a step in the present invention.

  As shown in FIG. 13, even if the edge 304 of the swing door 300 and the flange 404 of the slide door 400 overlap each other due to the step d, the edge 304 of the swing door 300 becomes the objective electrode 602. Do not touch. For this reason, the range in which contact or pinching can be detected can be expanded to just before closing.

  In the fully closed state, as shown in FIG. 14, the tip of the edge 304 of the swing door 300 contacts the slope 626 of the objective electrode 602. At this time, since the load at the time of contact is dispersed by the slope 626, the contact durability of the objective electrode 602 is improved.

  In order to avoid a malfunction due to the contact of the edge 304 with the inclined surface 606, the control units 705a and 705b do not respond to a detection signal from just before the closing until the closing. Such an operation is performed based on position signals fed back from the swing door 300 and the slide door 400, respectively.

  In the closed state, the gap between the tip of the edge 304 of the swing door 300 and the end surface 402 of the slide door 400 is closed by the seal surface 628 of the objective electrode 602. The seal surface 628 is at the same level as the outer surface of the slide door 400. For this reason, the objective electrode 602 also functions as a parting seal.

  As mentioned above, the power door for the vehicle has been exemplified as the best mode for carrying out the invention. However, the power door of the present invention is not limited to the vehicle, but is used for power doors for ships, aircrafts, etc., or indoors and outdoors. It may be a power door for an appropriate use such as a power door to be used.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view of a vehicle equipped with a power door as an example of the best mode for carrying out the invention. It is a figure which shows typically the structure of the opening-and-closing end part of a swing door and a slide door. It is a figure which shows typically the structure of the opening-and-closing end part of a swing door and a slide door. It is a figure which shows the operating state of the opening / closing end part of a swing door and a slide door. It is a block diagram which shows the structure of the control system of the power door of an example of the best form for implementing invention. It is a block diagram which shows the partial structure of the control system of the power door of an example of the best form for implementing invention. It is a figure which shows each the input signal waveform and output signal waveform of a waveform shaping circuit. It is a figure which shows each the input signal waveform and output signal waveform of a waveform shaping circuit. It is a figure which shows each the input signal waveform and output signal waveform of a waveform shaping circuit. It is a figure which shows a contact detection state. It is a figure which shows a pinching detection state. It is a figure which shows the operating state of the opening / closing end part of a swing door and a slide door. It is a figure which shows the operating state of the opening / closing end part of a swing door and a slide door. It is a figure which shows the operating state of the opening / closing end part of a swing door and a slide door.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100: Vehicle 200: Power door 300: Swing door 302: End surface 304: Edge part 310: Hinge 400: Slide door 402: End surface 404: Flange part 410: Rail 500: Center pillar 600: Fault sensor 602: Objective electrode 604: Opposition Electrode 606: Piezoelectric element 610: Support member 612: Bracket 614: Extension part 622: First parallel part 624: Second parallel part 626: Slope 628: Seal surface 642: First electrode part 644: Second electrode part 701: Preprocessing unit 701a: Oscillation circuit 701b: Waveform shaping circuit 703: Determination unit 705a, 705b: Control unit 707a, 707b: Open / close switch 800a, 800b: Power source

Claims (8)

At least one of the swing door and the slide door is opened / closed by an opening / closing mechanism having a power source, and when both the doors are closed, their opening / closing ends are closest to each other,
A fault sensor provided on one of the two members whose distance between the swing door and the sliding door increases or decreases with the opening and closing of at least one of the swing door and the slide door;
A power door comprising: control means for prohibiting operation of the opening / closing mechanism in a direction in which at least one of the swing door and the slide door is closed based on a detection signal of the failure sensor. The fault sensor is
Having a flexible objective electrode and a counter electrode spaced from the objective electrode;
The control means includes
Without responding to the detection signal of the fault sensor just before the doors are fully closed,
2. The power door according to claim 1, wherein when the capacitance of the objective electrode increases or when the objective electrode comes into contact with the counter electrode, the operation of the opening / closing mechanism is prohibited. The swing door is
In the state where both the doors are both closed, an end surface facing the opening / closing end of the slide door with a gap therebetween, and an edge portion extending from the end surface toward the slide door,
The sliding door is
In a state where both the doors are closed, an end surface facing the tip of the edge of the swing door with a gap and an outward surface extending from the end surface toward the swing door are inward of the edge. Having a flange portion facing the surface with a gap,
The fault sensor is
It is attached to the flange portion of the sliding door via a support member, and in a state where both the doors are closed, from the end portion of the swing door to the inward surface of the edge portion and from the front end of the flange portion of the slide door The power door according to claim 2, wherein the power door enters between the portions facing the outward surface. The counter electrode of the fault sensor is
In a state where both the doors are closed, the first electrode portion and the second electrode portion respectively facing the inward surfaces of the end surface and the edge of the swing door with the objective electrode interposed therebetween,
The power door according to claim 3. The objective electrode of the fault sensor is
The power door according to claim 4, further comprising a first parallel portion and a second parallel portion that are parallel to the first electrode portion and the second electrode portion of the counter electrode, respectively. The support member is
A U-shaped portion that fits into the flange portion, and an extending portion that extends outward along the end face of the slide door from the opening-side tip of the U-shaped portion;
The objective electrode is
The power door according to claim 5, wherein one side is coupled to a tip of an extended portion of the support member. The objective electrode is
The power door according to claim 6, further comprising a step for avoiding an edge of the swing door when both the doors are closed. The power door according to claim 7, wherein the step has a slope.

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