JP2008144416A - Door opening/closing system for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door opening/closing system for a vehicle, which can easily and surely control opening/closing by means of a plurality of motors. <P>SOLUTION: This door opening/closing system comprises: a plurality of door opening/closing apparatuses 11 and 11' which are provided with a latch mechanism 14 equipped with a latch 13 for being engaged with a striker (engaging member) 12 so as to be put into a half-latched or fully-latched state, a motor 16a (16a') for driving the latch mechanism 14, and a latched-state detecting means 21 (21') for detecting the latched state; and a control means 4 for driving the latch mechanism 14 so that the latch mechanism 14 can be put into the fully-latched state from a half-latched one, by synchronously starting the drive of all the motors 16a (16a'), when all the latched-state detecting means 21 (21') detect a shift to the half-latched state, in the case where a vehicle door is put into a fully-closed state from a fully-opened one. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle door opening / closing system.

  Conventionally, a vehicle 1 such as a wagon car or a minivan is provided with a flip-up back door 2 as shown in FIG. 16A, or a flip-up back door as shown in FIG. 16B. There is a thing provided with the back door which consists of (upper door) 2 and the lower door 3 of a flip-down type.

  In the vehicle 1 shown in FIG. 16B, the upper door 2 can be opened and closed when the lower door 3 is closed, and the lower door 3 can be opened and closed when the upper door 2 is open, When the lower door 3 is opened, as shown in FIG. 17, when the upper door 2 is in the open state, the lock mechanism 4 on both sides is locked by operating the release lever 5 of the lower door 3 in the closed state. When the lower door 3 is closed manually after the release, and the lower door 3 is closed, the lock mechanism 4 is locked by closing and pushing the lower door 3 manually.

Although the above-described opening and closing of the back door is performed manually, a door opening and closing method using a motor that locks / unlocks the back door locking mechanism of the vehicle by driving control of a single motor is also known (for example, , See Patent Document 1).
JP 2002-250163 A

  The manual door opening / closing method described above requires a force for operating the release lever and a force for pushing the lower door to lock the lock mechanism, and there is a load on the user. In addition, in a situation where the door is not fully pushed in, the lock is not perfect, but this is difficult for the user to understand. In addition, because of the manual opening and closing method, it lacked a high-class feeling.

  In addition, the door opening / closing method using the motor described above is a single motor control, and in order to cope with the increase in the size of the door, if a plurality of motors are used, the opening / closing of the door does not move smoothly, or a motor that sounds loose. There are problems such as quality degradation due to driving sound.

  In view of the above-described problems, an object of the present invention is to provide a vehicle door opening / closing system capable of easily and reliably performing opening / closing control using a plurality of motors.

  The invention according to claim 1, which has been made to solve the above-mentioned problems, is a vehicle door opening / closing system that controls opening / closing of a vehicle door so that the vehicle door is fully closed or fully open. Each of the door opening and closing devices, wherein each door opening and closing device is engaged with an engagement member provided on the vehicle body or the vehicle door so as to be in a half latch state or a full latch state, and the latch mechanism A plurality of door opening / closing devices having a driving motor and a latch state detecting means for detecting a latching state of the latch mechanism, and the plurality of door opening / closing devices when the vehicle door is changed from a fully open state to a fully closed state; When all the latch state detecting means detect that the half latch state is detected, all the motors of the plurality of door opening and closing devices are started to be driven synchronously. Wherein the latching mechanism comprises a control means for driving so that the full latch state from the half-latched state.

  According to the first aspect of the present invention, the vehicle door opening / closing system includes a plurality of door opening / closing devices attached to the vehicle door or the vehicle body, and control means for controlling the plurality of door opening / closing devices. Each door opening and closing device includes a latch mechanism including a latch that is engaged with an engagement member provided on a vehicle body or a vehicle door so as to be in a half latch state or a full latch state, a motor that drives the latch mechanism, Latch state detecting means for detecting the latch state of the latch mechanism. When the control means detects that all the latch state detection means of the plurality of door opening / closing devices are in the half latch state when the vehicle door is changed from the fully open state to the fully closed state, the control means All motors are driven to start synchronously so that the latch mechanism changes from the half latch state to the full latch state. As a result, the opening and closing of the vehicle door can be easily and reliably controlled using a plurality of motors, the load on the user is reduced, and half-fitting of the door (so-called half-door) is eliminated. be able to. In addition, when the vehicle door is controlled from the fully open state to the fully closed state, the full closing operation is not started until all of the plurality of door opening and closing devices are in the half latched state. This can be prevented and the safety of the human body can be secured. In addition, since a plurality of motors are driven and controlled synchronously, a smooth feeling as if a single motor is being controlled is realized, and there is no sense of incongruity. In addition, since a plurality of motors are always driven and controlled at the same time, the motor operating noise is prevented from being shifted and prolonged, and the motor can be quieted.

  According to a second aspect of the present invention, there is provided a vehicular door opening / closing system according to the first aspect, wherein the control means is opened when the vehicle door is changed from a fully closed state to a fully opened state. Open control signal output means, and the control means further synchronizes all the motors of the plurality of door opening and closing devices in response to the input of the open instruction signal from the open instruction signal output means. And the latch mechanism is driven so as to change from the full latch state to the half latch state.

  According to a second aspect of the present invention, the vehicle door opening and closing system further includes an opening instruction signal output means for outputting an opening instruction signal to the control means when the vehicle door is changed from the fully closed state to the fully opened state. The means further starts synchronously driving all the motors of the plurality of door opening and closing devices in response to the input of the opening instruction signal from the opening instruction signal output means so that the latch mechanism changes from the full latch state to the half latch state. Let As a result, even when the vehicle door is changed from a fully closed state to a fully opened state, the drive control of multiple motors is always performed at the same time. A quality vehicle door opening and closing system can be provided.

  According to the first aspect of the present invention, the opening and closing of the vehicle door can be easily and reliably controlled using a plurality of motors, the load on the user is reduced, and the door is half-fitted ( So-called half doors) can be eliminated, and operability and convenience are improved. In addition, when the vehicle door is controlled from the fully open state to the fully closed state, the full closing operation is not started until all of the plurality of door opening and closing devices are in the half latched state. It is possible to prevent this and ensure the safety of the human body, and to prevent vehicle failure and deformation due to foreign object pinching. In addition, since multiple motors arranged at multiple locations on the vehicle door are driven and controlled synchronously, a smooth feeling as if a single motor is being controlled is realized without giving a sense of incongruity. Quality can be realized. In addition, since the plurality of motors are always driven and controlled at the same time, the motor operating noise is prevented from being shifted and prolonged, and the motor can be quieted. Thus, a high-quality vehicle door opening / closing system can be provided.

  According to the second aspect of the present invention, even when the vehicle door is changed from the fully closed state to the fully open state, the drive control of the plurality of motors is always performed at the same time. Therefore, a high-quality vehicle door opening / closing system can be provided.

  Embodiments of the present invention will be described below with reference to the drawings.

  The vehicle door opening and closing system according to the embodiment of the present invention includes, as shown in FIG. 1, for example, a lower door 3 in a back door composed of a flip-up type upper door and a flip-down type lower door of the vehicle 1. Used for open / close control. That is, the vehicle door opening and closing system of the present invention includes two door opening and closing devices 11 and 11 ′ disposed inside both sides of the lower door 3, and a handle switch button 30 a disposed at the tip of the lower door 3. And.

  The lower door 3 is opened and closed by manual operation by a user or the like and by automatic opening / closing control of the two door opening / closing devices 11 and 11 'by operating the handle switch button 30a. The upper door is configured to be opened and closed by another door opening / closing device disposed inside the upper door when the lower door 3 is in a fully closed position (full latched state) described later. Since the opening / closing control of the upper door is not included in the description of the present invention, its detailed description is omitted.

  The two door opening and closing devices 11 and 11 ′ constituting the vehicle door opening and closing system have substantially the same mechanical configuration as that described in Patent Document 1 described above. Will be described by partially utilizing the description and drawings in Patent Document 1.

  FIG. 2 is a block diagram showing an electrical configuration of the vehicle door opening / closing system of the present invention. As shown in FIG. 2, the vehicle door opening / closing system includes door opening / closing devices 11, 11 ′ having the same configuration, a control unit 4, and a handle switch 30.

  The door opening / closing device 11 includes a motor 16a, a latch state detection switch (hereinafter referred to as a latch switch) 21, and a neutral switch 29. The latch switch 21 includes a half latch switch 21a, a full latch switch 21b, and a courtesy switch 21c. The latch switch 21 corresponds to the latch state detecting means in the claims.

  The door opening / closing device 11 'includes a motor 16a', a latch state detection switch (hereinafter referred to as a latch switch) 21 ', and a neutral switch 29'. The latch switch 21 'includes a half latch switch 21a', a full latch switch 21b ', and a courtesy switch 21c'. Similarly, the latch switch 21 'corresponds to the latch state detecting means in the claims.

  The control unit 4 includes a control / determination unit 5, input circuits 6, 7, 8 and motor drive circuits 9, 10 connected to the control / determination unit 5. The control unit 4 corresponds to the control means in the claims. The control / determination unit 5 includes a determination unit 5a and a control unit 5b. The handle switch 30 is connected to the input circuit 6. The handle switch 30 corresponds to the opening instruction signal output means in the claims.

  The motor 16 a of the door opening / closing device 11 is connected to the motor drive circuit 9, and the latch switch 21 and the neutral switch 29 are connected to the input circuit 7. The motor 16 a ′ of the door opening / closing device 11 ′ is connected to the motor drive circuit 10, and the latch switch 21 ′ and the neutral switch 29 ′ are connected to the input circuit 8. The control unit 4 can be configured by a microcomputer or the like.

  Next, the mechanical configuration of the door opening / closing device 11 will be described. Detailed description of the configuration of the door opening / closing device 11 ′ having the same configuration will be omitted, but the components identical to those of the door opening / closing device 11 will be denoted by “ A description will be given with a “′” attached.

  FIG. 3 is a perspective view showing an outline of the door opening and closing device 11. The door opening / closing device 11 includes a latch mechanism 14 including a latch 13 that can be engaged with a striker 12 (shown only in FIG. 5) as an engagement member fixed to the vehicle body opening side closed by the lower door 3. ing. The door opening / closing device 11 includes an operating mechanism 15 for operating the latch mechanism 14 and a motor unit 16 as an actuator capable of driving the operating mechanism 15. The motor unit 16 includes a motor 16a that is driven and controlled by the control unit 4 described above.

  4 to 8 are views showing the operating states of the latch mechanism 14, the operating mechanism 15, and the motor unit 16 using only the movable members. As shown in FIGS. 4 to 8, in addition to the latch 13, the latch mechanism 14 is provided with a locking piece 17 that can be engaged with the latch 13.

  The latch 13 is rotatably supported by a housing 14A (shown only in FIG. 3) of the latch mechanism 14 in a state where a latch support shaft (not shown) is passed through a hole 13A formed in the latch 13. The latch 13 is provided with a U-shaped groove 13C opened in the outer peripheral surface 13B. The striker 12 can be introduced into the U-shaped groove 13C as the lower door is manually moved. The latch 13 is formed with first and second engaging protrusions 13D and 13E that can engage with the locking piece 17 so as to protrude outward from the outer peripheral surface 13B.

  A latch lever 18 is fixed to the latch 13. The latch support shaft is also inserted into a hole 18 </ b> A formed in the latch lever 18. The latch lever 18 is formed with an arm portion 18B extending away from the center of rotation of the latch 13, and an engaging pin 18C is erected at the tip of the arm portion 18B.

  The locking piece 17 is fixed to a locking piece support shaft 19 that is disposed in equilibrium with the latch support shaft and is rotatably supported by the housing 14A. A locking piece lever 20 is fixed to the upper end portion of the locking piece support shaft 19.

  FIG. 5 is a plan view of the latch 13 and the locking piece 17. The latch 13 is urged counterclockwise in FIG. 5 by a spring (not shown). The locking piece 17 is also urged by a spring (not shown) in the clockwise direction in FIG.

  When the striker 12 is disposed in the U-shaped groove 13C and the first engagement protrusion 13D of the latch 13 and the locking piece 17 are engaged (half-latch state, state of FIG. 5), The lower door is in a semi-closed state.

  When the striker 12 is disposed in the U-shaped groove 13C and the second engagement protrusion 13E of the latch 13 and the locking piece 17 are engaged (full latched state), the lower door is Fully closed.

  In the half latch state and the full latch state, when the engagement piece 17 is rotated counterclockwise to disengage the engagement piece 17 from the latch 13, the latch 13 is rotated by the biasing force of the spring. Then, it can be held in an open state by abutting against a stopper (not shown). When the latch 13 is in the open state, the striker 12 can be introduced into the U-shaped groove 13C or removed from the U-shaped groove 13C by manually moving the lower door. In addition, when the latch 13 is in the open state, the locking piece 17 is disposed in a position that abuts against a stopper (not shown) and enables engagement with the latch 13.

  The latch mechanism 14 includes a latch switch 21 (shown only in FIG. 3) that can detect the position state of the latch 13. The latch switch 21 includes a half latch switch 21a that detects a half latch state, a full latch switch 21b that detects a full latch state, and a courtesy switch 21c that turns on and off a courtesy lamp (not shown) that is turned on when the back door is opened. .

  FIG. 10 is a diagram showing the relationship between the ranges of the on / off states of the half latch switch 21a, the full latch switch 21b, and the courtesy switch 21c.

  Specifically, the half latch switch 21a maintains the state from the on state to the off state immediately before the latch 13 rotates from the open state side to the close state side, and immediately before the half latch state. When the latch 13 is rotated from the closed state side to the open state side, the state is changed from the off state to the on state immediately after the half latch state is established, and the state is maintained.

  Further, the full latch switch 21b maintains the state from the off state to the on state when the latch 13 is turned from the open state side to the close state side and when the latch 13 is turned to the full latch state. When turning from the closed state side to the open state side, the state is changed from the on state to the off state when the full latch state is lost, and the state is maintained.

  The courtesy switch 21c is switched from the on-state to the off-state during the period from the half-latch state to the full-latch state when the latch 13 rotates from the open state side to the closed state side, and maintains that state. At the same time, when the latch 13 is rotated from the closed state side to the open state side, the state is changed from the off state to the on state immediately before the half latch state is established.

  The control unit 4 determines that the time point when the half latch switch 21a changes from the ON state to the OFF state is the time point when the state of the latch 13 changes to the half latch state, and the full latch switch 21b changes from the OFF state to the ON state. The time point is determined as the time point when the state of the latch 13 becomes the full latch state. Further, the control unit 4 determines that the full latch switch 21b has changed from the on state to the off state, and further the latch 13 has changed to the open state, and the full latch switch 21b has changed from the off state to the on state. Is determined as the time when the state of the latch 13 becomes the full latch state.

  The ON / OFF output of the full latch switch 21b and the half latch switch 21a is based only on the position state of the latch 13 regardless of whether or not the striker 12 is introduced into the U-shaped groove 13C of the latch 13. Done.

  The motor unit 16 includes an output pinion gear 23 connected to the motor 16a via a reduction gear structure (not shown). The motor unit 16 is driven and controlled by the control unit 4, and the output pinion gear 23 can be driven to rotate in both forward and reverse directions by the control. The motor unit 16 has the same output driving force and output driving speed of the output pinion gear 23 in both the forward and reverse directions.

  The operating mechanism 15 includes an operating gear 24 as an operating member that is driven by being engaged with the output pinion gear 23. The operation gear 24 is rotatably supported by a gear support shaft 25 that is not parallel to the latch support shaft and the locking piece support shaft 19. The operating gear 24 has a substantially fan shape in plan view, and a tooth portion 24A that can be engaged with the output pinion gear 23 is formed in an arc-shaped portion thereof. A tooth and an operating pin 24B are vertically fixed by caulking on a portion near the outer periphery of the operating gear 24 and on a surface on one end side in the circumferential direction.

  On the gear support shaft 25, a closing lever 26 is disposed in a rotatable state. The closing lever 26 can be rotated counterclockwise when the contacted portion 26A of the closing lever 26 contacts the operating pin 24B based on the rotation of the operating gear 24 in the counterclockwise direction in FIG. It is like that.

  Further, the closing lever 26 can be brought into contact with the engaging pin 18C of the latch lever 18 based on the counterclockwise rotation in FIG. ing. When the closing lever 26 is further rotated counterclockwise in FIG. 4 in a state where the closing operation piece 26B is in contact with the engaging pin 18C, the latch 13 is moved in the closing direction (from the open state side to the full latch state side). (Moving direction).

  The closing lever 26 is urged clockwise in FIG. 4 by a spring (not shown), and in a state where it is not in contact with the operating pin 24B, it is in contact with a stopper (not shown) so as to be held at a predetermined position. It has become.

  The operating mechanism 15 is rotatably supported by an opening lever supporting shaft 27 parallel to the gear supporting shaft 25, on the side opposite to the operating gear 24 across the closing lever 26. An open lever 28 is provided. Based on the clockwise rotation of the operating gear 24 in FIG. 4, the opening lever 28 can be rotated clockwise by the contacted portion 28 </ b> A of the opening lever 28 contacting the operating pin 24 </ b> B. It has become.

  The open lever 28 is provided with an open operation piece 28B that can come into contact with the locking piece lever 20 on the opposite side of the contacted portion 28A across the open lever support shaft 27. The open actuating piece 28B can come into contact with the locking piece lever 20 based on the clockwise rotation of the open lever 28 by the actuating gear 24 in FIG. When the opening lever 28 is further rotated in the clockwise direction in FIG. 4 in a state where the open operation piece 28B is in contact with the locking piece lever 20, the locking piece 17 is disengaged from the latch 13 (FIG. 4). In a counterclockwise direction).

  Note that the opening lever 28 is urged counterclockwise in FIG. 4 by a spring 28C (shown only in FIG. 3), and in a state where it is not in contact with the operating pin 24B, it comes into contact with a stopper (not shown). It is designed to be held in position.

  In the door opening and closing device 11, the operating gear 24 is released from the door fully closed side and the door fully closed release with reference to the neutral position of the operating gear 24 where the operating pin 24B and the levers 26 and 28 do not contact each other (non-interfering). The control unit 4 controls the motor unit 16 so as to rotate to the side. Note that the operating gear 24 is in a state where the operating gear 24 is close to the rotating direction side (counterclockwise side in FIGS. 4 and 6 to 8) for operating the closing lever 26 with reference to the neutral position. A state in which 24 is close to the door fully closed side or a state in which the door is on the door fully closed side will be referred to. Further, the operation gear 24 is in a state where the operation gear 24 is close to the rotation direction side (the clockwise direction in FIGS. 4 and 6 to 8) for operating the opening lever 28 with reference to the neutral position. It will be referred to as a state close to the door fully closed release side or a state on the door fully closed release side.

  When the operating gear 24 is in the neutral position, a predetermined gap is ensured between the operating pin 24B of the operating gear 24 and the abutted portions 26A and 28A of the levers 26 and 28. When the operating gear 24 is rotated by a predetermined angle or more, they can come into contact with each other.

  Further, when the operating pin 24B and the levers 26 and 28 do not interfere with each other, the levers 26 and 28 are respectively held at the predetermined positions so as not to interfere with the latch mechanism 14 side. Therefore, in this state, the striker 12 introduced into the U-shaped groove 13C can be pressed based on manual movement of the back door or the like, so that the latch 13 can be in a half latch state or a full latch state. It has become.

  In the present embodiment, the neutral switch 29 as a neutral position detection sensor provided in the operation mechanism 15 detects whether the operation gear 24 is in the state of the door fully closed side or the door fully closed release side. To be able to be. The neutral switch 29 includes a rotor 29B rotatably supported by a base portion 29A (shown only in FIG. 3) fixed to the base side of the operating mechanism 15. The rotor 29B is provided with an engaging portion 29C that can engage with the sensor pin 24E provided on the operating gear 24. The neutral switch 29 performs the detection by a change in the orientation of the rotor 29B based on the rotation of the operating gear 24 when the sensor pin 24E and the engaging portion 29C are engaged.

  When the operating gear 24 is substantially in the neutral position, the engaging portion 29C and the sensor pin 24E are engaged (states of FIGS. 3 and 6). In the state where the operating gear 24 is close to the fully closed side with respect to the neutral position, the rotor 29B is rotated so that the engaging portion 29C faces upward (the state of FIG. 5), and the neutral switch 29 is controlled by the control unit. 4 is in a state in which an off signal is output (neutral switch off state as a first state) (see FIG. 9). Further, in a state where the operation gear 24 is close to the door fully closed release side with respect to the neutral position, the rotor 29B is rotated so that the engaging portion 29C faces downward (the state of FIG. 7), and the neutral switch 29 Is in a state in which an OFF signal is not output to the control unit 4 (neutral switch on state as the second state) (see also FIG. 9).

  The control unit 4 determines that the time point when the neutral switch 29 is switched between the on state and the off state is the time point when the operating gear 24 is in the neutral position. That is, the neutral switch 29 is configured to detect the neutral position by switching between the on state and the off state.

  Further, the control unit 4 determines that the time point when the state of the neutral switch 29 is switched from the off state to the on state is a time point when the operating gear 24 reaches the neutral position from the door fully closed release side. Further, the control unit 4 determines that the time when the state of the neutral switch 29 is switched from the on state to the off state is a time when the operating gear 24 reaches the neutral position from the door fully closed side.

  In the state where the operating gear 24 is close to the door fully closed side and the door fully closed release side and the sensor pin 24E is disengaged from the engaging portion 29C, the orientation of the rotor 29B remains in the state at the time of disengagement. 24E and the engaging portion 29C are held in a state where they can be re-engaged.

  Next, the operation of the vehicle door opening / closing system having the above-described configuration will be described with reference to FIGS. FIG. 11 is a state transition diagram of the vehicle door opening and closing system of the present invention, and FIGS. 12A and 12B are operation explanatory views showing the main part of the door opening and closing device when operating from the fully open state to the closing direction, respectively. FIGS. 13A and 13B are operation explanatory views showing the main part of the door opening and closing device when operating from the fully closed state to the open direction, respectively, and FIG. 14 is a case of operating from the fully open state to the closing direction. FIG. 15 is a signal timing chart of the main part of the door opening / closing device when operating in the opening direction from the fully closed state.

  First, the operation of changing the lower door 3 of the back door from the fully open state to the fully closed state will be described. When the lower door 3 of the back door is fully open (step S1 in FIG. 11) (timing block A in FIG. 14), the latch 13 (13 ′) is in the open state and the operating gear 24 (24 ′). Is almost neutral.

  In this state, the half latch switch 21a (21a ') of the latch switch 21 (21') is on, the full latch switch 21b (21b ') is off, and the courtesy switch 21c (21c') is on. . Further, the operating gear 24 (24 ') is in a stationary state with a slight shift toward the door fully closed side with respect to the neutral position, and the neutral switch 29 is in an OFF state.

  In this state, the user moves the lower door 3 in the closing direction manually or the like, and the latch 13 (13 ′) is moved by the striker 12 (12 ′) introduced into the U-shaped groove 13C (13C ′). Is rotated in the closing direction, the latch 13 (13 ') is engaged with the first engaging protrusion 13D (13D') and the locking piece 17 (17 '), as shown in FIG. Half-latch state.

  At this time, when both the half latch switch 21a of the door opening and closing device 11 and the half latch switch 21a 'of the door opening and closing device 11' are switched from the on state to the off state, the determination unit 5a of the control unit 4 It is determined that the latch of the switchgear is in the half latched position (step S2), and the process proceeds to the next step S3. That is, in step S2, half-latch position detection of all door opening / closing devices is set as condition 1, and when this condition 1 is satisfied, the process can proceed to the next step. Therefore, even if only one of the two door opening / closing devices 11 and 11 'is confirmed to detect the half latch position, if the half latch position of the other door opening / closing device is not confirmed, the process can proceed to the next step. Instead, when the half-latch position detection of both of the two door opening / closing devices 11 and 11 'is confirmed, it is possible to proceed to the next step.

  When the above condition 1 is satisfied, the control unit 5b of the control unit 4 next sets the door opening and closing devices 11 and 11 'to the synchronous fully closed operation standby state and waits for a predetermined time (for example, 0.3 seconds). (Step S3) (timing block B in FIG. 14).

  Next, when the determination unit 5a determines that the waiting time has ended (condition 2) (step S4), the control unit 5b then places the door opening and closing devices 11 and 11 ′ in the synchronous fully closed operation state (step S5). (Timing block C in FIG. 14). That is, the control unit 5b starts synchronously driving the motors 16a and 16a 'of the door opening and closing devices 11 and 11' in a normal direction.

  As a result, as shown in FIG. 12, the operating gear 24 (24 ′) starts to rotate counterclockwise, and when the rotating angle reaches a predetermined angle, the operating pin 24B (24B ′) is closed. The closing lever 26 (26 ') starts rotating by contacting the contacted portion 26A (26A') of the lever 26 (26 ').

  When the rotation angle of the closing lever 26 (26 ') reaches a predetermined angle and then further rotates, the closing operation piece 26B (26B') comes into contact with the engagement pin 18C (18C '). In this state, the latch 13 (13 ') is rotated to the full latch state side. When the closing operation piece 26B (26B ′) is rotated to the position indicated by the dotted line in FIG. 12B, the engagement pin 18C (18C ′) is accordingly rotated to the position indicated by the dotted line (FIG. 12). 6 state). As a result, the striker 12 (12 ′) (not shown in FIG. 6) is drawn so that the lower door 3 is fully closed by the rotation of the latch 13 (13 ′). The courtesy switch 21c (21c ') is switched from the on state to the off state during the rotation of the latch 13 (13').

  When the latch 13 (13 ') reaches a position beyond the full latch state where the lower door 3 can be held in the fully closed state, the full latch switch 21b (21b') is switched from the off state to the on state. The motor 16a (16a ') of the motor unit 16 (16') is driven to rotate the latch 13 (13 ') until the full latch switch 21b (21b') is turned on. Engagement between the mating protrusion 13E (13E ') and the locking piece 17 (17') is ensured. When the determination unit 5a detects that the full latch switch 21b (21b ') is turned on, the control unit 5b controls to stop the motor 16a (16a') accordingly. That is, the controller 5b asynchronously stops driving the motor 16 and the motor 16 '.

  At this time, when both the full latch switch 21b of the door opening / closing device 11 and the full latch switch 21b 'of the door opening / closing device 11' are switched from the off state to the on state, the determination unit 5a of the control unit 4 The latch 13 of the switchgear is in the fully latched position, and it is determined that all fully-closed operations have been completed (condition 3) (step S6), and the process proceeds to the next step.

  Next, the control unit 5b of the control unit 4 places the door opening and closing devices 11 and 11 'into the fully closed return standby state, and waits for a predetermined time (for example, 0.3 seconds) (step S7) (timing block D in FIG. 14). ).

  Next, when the determination unit 5a determines that the fully closed return waiting time has ended (condition 4) (step S8), the control unit 5b then activates the door opening and closing devices 11 and 11 ′ to perform a synchronous fully closed return operation (neutral position). (Return operation) state (step S9) (timing block E in FIG. 14). That is, the control part 5b starts synchronously the reverse drive of the motors 16a and 16a 'of the door opening and closing devices 11 and 11'. As a result, the second engaging protrusion 13E (13E ') and the locking piece 17 (17') are securely engaged, and the latch 13 (13 ') is brought into the full latch state, and the closing operation piece 26B (26B). ′) And the engagement pin 18C (18C ′) are disengaged, and the stress acting excessively on the latch mechanism 14 (14 ′) and the actuation mechanism 15 (15 ′) is relieved (FIG. 7). State).

  When the operation gear 24 (24 ') starts to rotate clockwise by the reverse rotation of the motor 16a (16a') and is rotated to the neutral position, the neutral switch 29 (29 ') is turned on. Then, the switching from the off state to the on state is made, and the determination unit 5a is notified that this switching has occurred.

  The determination unit 5a determines that the operation gear 24 (24 ') has reached the neutral position due to the occurrence of the switching (the condition 5), and accordingly, the control unit 5b determines that the motor 16a ( 16a ') is controlled to stop (step S10). At this time, the operating gear 24 (24 ') slightly exceeds the neutral position due to the time lag of control by the control unit 5b and the mechanical inertia of the motor unit 16 (16') and the operating gear 24 (24 ') itself. Stop at the position. In this state, the operating gear 24 (24 ′) is slightly offset toward the door fully closed release side with respect to the neutral position. In a position slightly beyond this neutral position, even if the operating pin 24B (24B ') contacts the contacted portion 28A (28A') of the opening lever 28 (28 '), the open operating piece 28B (28B) ') And before the locking piece lever 20 (20') interferes, the locking piece 17 (17 ') is not opened.

  This state is a fully closed state in which the lower door 3 is completely closed (step S11) (timing block F in FIG. 14).

  Next, an operation for changing the lower door 3 of the back door from the fully closed state to the fully opened state will be described. When the lower door 3 of the back door is in the fully closed state (step S11 in FIG. 11) (timing block H in FIG. 15), the latch 13 (13 ′) is in the closed state and the operating gear 24 (24 ′ ) Is almost neutral.

  In this state, the half latch switch 21a (21a ') of the latch switch 21 (21') is off, the full latch switch 21b (21b ') is off, and the courtesy switch 21c (21c') is off. . In addition, the operation gear 24 (24 ') is in a stationary state with a slight shift toward the door fully open with respect to the neutral position, and the neutral switch 29 is in an on state.

  In this state, when the user operates the handle switch button 30a to bring the lower door 3 into the fully closed release state (open state), and the handle switch 30 is turned from the OFF state to the ON state (Step S12). Condition 6) Next, the controller 5b starts the motor drive circuits 9 and 10 so as to synchronously start the drive control of the motors 16a and 16a 'for releasing the fully closed state with respect to the door opening and closing devices 11 and 11'. Is set to the synchronous fully open operation state (step S13) (timing block I in FIG. 15). That is, the control part 5b starts synchronously the reverse drive of the motors 16a and 16a 'of the door opening and closing devices 11 and 11'.

  As a result, as shown in FIG. 13, the operating gear 24 (24 ') starts to rotate clockwise, and when the rotating angle reaches a predetermined angle, the operating pin 24B (24B') opens. The opening lever 28 (28 ') starts rotating by contacting the contacted portion 28A (28A') of the lever 28 (28 ').

  When the rotation angle of the opening lever 28 (28 ') reaches a predetermined angle and then further rotates, the open operation piece 28B (28B') contacts the locking piece lever 20 (20 '). In this state, the locking piece 17 (17 ′) is rotated in the direction of releasing the engagement with the latch 13 (13 ′). When the open operation piece 28B (28B ′) is rotated to the position indicated by the dotted line in FIG. 12B, the locking piece lever 20 (20 ′) is rotated to the position indicated by the dotted line (state of FIG. 8). As a result, the engagement between the locking piece 17 (17 ′) and the latch 13 (13 ′) is released, and the latch 13 (13 ′) is rotated to the open state side by the biasing force of the spring. As a result, the striker 12 (12 ′) can be removed from the U-shaped groove 13C (13C ′), and the lower door 3 can be brought into a fully closed release state.

  Thus, when the latch 13 (13 ') is rotated from the full latch state side to the open state side, the full latch switch 21b (21b') is first turned from the OFF state to the ON state during the rotation. After that, the courtesy switch 21c (21c ′) is switched from the OFF back to the ON state, and finally the half latch switch 21a (21a ′) is switched from the OFF state to the ON state. When the determination unit 5a detects that the courtesy switch 21c (21c ') is turned on, the control unit 5b controls to stop the motor 16a (16a') accordingly. That is, the controller 5b asynchronously stops driving the motor 16 and the motor 16 '.

  At this time, when both the courtesy switch 21c of the door opening and closing device 11 and the courtesy switch 21c 'of the door opening and closing device 11' are switched from the off state to the on state, the determination unit 5a opens the latches of all the door opening and closing devices. Then, the lower door 3 is in a state in which the lower door 3 can be moved in the opening direction by manual operation or the like, and it is determined that all the full opening operations are completed (condition 7) (step S14), and the process proceeds to the next step.

  Next, the control unit 5b places the door opening and closing devices 11 and 11 ′ into the fully open return standby state, and waits for a predetermined time (for example, 0.3 seconds) (step S15) (timing block J in FIG. 15).

  Next, when the determination unit 5a determines that the fully open return waiting time has expired (condition 8) (step S16), the control unit 5b then causes the door opening and closing devices 11 and 11 'to operate synchronously fully open (neutral position return operation). ) State (step S17) (timing block K in FIG. 15). That is, the control unit 5b starts synchronously driving the motors 16a and 16a 'of the door opening and closing devices 11 and 11' in a normal direction.

  When the actuating gear 24 (24 ') starts to rotate counterclockwise by the forward rotation of the motor 16a (16a') and is turned to the neutral position, the neutral switch 29 (29 ' ) Is switched from the on state to the off state, and the determination unit 5a is informed that this switching has occurred.

  The determination unit 5a determines that the operation gear 24 (24 ') has reached the neutral position due to the occurrence of this switching, and the neutral position return end (condition 9). In response, the control unit 5b determines that the motor 16a ( 16a ') is controlled to stop (step S18). At this time, the operating gear 24 (24 ') slightly exceeds the neutral position due to the time lag of control by the control unit 5b and the mechanical inertia of the motor unit 16 (16') and the operating gear 24 (24 ') itself. Stop at the position. In this state, the operating gear 24 (24 ′) is slightly shifted toward the door fully closed side with respect to the neutral position. At a position slightly beyond this neutral position, even if the operating pin 24B (24B ') contacts the contacted portion 26A (26A') of the closing lever 26 (26 '), the closing operating piece 26B (26B ′) And the engaging pin 18C (18C ′) are before they interfere with each other, so that the latch 13 is not closed.

  This state is a fully opened state in which all operations of the door opening / closing device 11 (11 ′) toward the fully opened state are completed and the lower door 3 can be moved in the opening direction by manual operation or the like, and the process returns to step S1. It is in a state (timing block L in FIG. 15).

  As described above, according to the vehicle door opening / closing system of the present invention, the opening / closing control of the back door can be easily and reliably performed using a plurality of motors, and the load on the user is reduced. At the same time, half-fitting of the door (so-called half-door) can be eliminated, and operability and convenience are improved. In addition, when the back door is controlled from opening to closing, the full closing operation is not started until all of the plurality of door opening and closing devices are in the half latched state, thereby preventing the user from being caught between the doors. Thus, it is possible to ensure the safety of the human body and prevent vehicle breakdown and deformation due to foreign object pinching. In addition, since multiple motors arranged at multiple locations on the back door are driven and controlled synchronously, a smooth feeling as if a single motor is being controlled is achieved without causing a sense of incongruity. Quality can be realized. In addition, since the plurality of motors are always driven and controlled at the same time, the motor operating noise is prevented from being shifted and prolonged, and the motor can be quieted. Thus, a high-quality vehicle door opening / closing system can be provided.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this, A various deformation | transformation and application are possible.

  For example, in the above-described embodiment, the case where the striker is disposed on the vehicle body side and the door opening and closing device is provided on the vehicle door side has been described, but instead, the striker is disposed on the vehicle door side, A door opening / closing device may be provided on the vehicle body side.

  Further, in the above-described embodiment, the operation standby state is set for a predetermined time. However, instead of this, an operation without the operation standby state may be performed.

  Moreover, although the above-mentioned embodiment demonstrated the case where it was used for the opening / closing control of the lower door in the back door comprised by the flip-up type upper door of a vehicle, and a spring-down type lower door, this invention is this The present invention is not limited to this, and can be applied to open and close any door of a vehicle as long as the door is opened and closed using a plurality of motors.

It is a figure which shows the principal part of the vehicle to which the vehicle door opening / closing system which concerns on embodiment of this invention is applied. 1 is a block diagram showing an electrical configuration of a vehicle door opening / closing system according to an embodiment of the present invention. 1 is a perspective view showing a mechanical outline of a door opening and closing device constituting a vehicle door opening and closing system according to an embodiment of the present invention. It is a state explanatory drawing which shows the principal part of a door opening / closing apparatus in the state which has a working gear in a substantially neutral position. It is a top view which shows the principal part of the latch mechanism of a door opening / closing apparatus. It is operation | movement explanatory drawing which shows the principal part of a door opening / closing apparatus. It is operation | movement explanatory drawing which shows the principal part of a door opening / closing apparatus. It is operation | movement explanatory drawing which shows the principal part of a door opening / closing apparatus. It is action | operation explanatory drawing of the neutral switch of a door opening / closing apparatus. It is action | operation explanatory drawing of the latch state detection switch of a door opening / closing apparatus. It is a state transition diagram explaining operation | movement of the vehicle door opening / closing system which concerns on embodiment of this invention. (A) And (B) is the operation | movement explanatory drawing which shows the principal part of a door opening / closing apparatus in the case of operate | moving from a fully open state to a close direction, respectively. (A) And (B) is the operation | movement explanatory drawing which shows the principal part of the door opening / closing apparatus in the case of each operating in an open direction from a fully closed state. It is a signal timing chart of the principal part of the door opening / closing device when operating in the closing direction from the fully open state. It is a signal timing chart of the principal part of the door opening / closing device when operating in the open direction from the fully closed state. (A) And (B) is a figure explaining the opening-and-closing method of the back door in the conventional vehicle, respectively. It is a figure explaining arrangement | positioning of the locking mechanism in the opening-and-closing system of FIG.16 (B).

Explanation of symbols

4 Control unit (control means)
11, 11 'door opening and closing device 12 striker (engagement member)
13 Latch 14 Latch mechanism 16a, 16a 'Motor 21, 21' Latch switch (state detection means)
30 Handle switch (open instruction signal output means)

Claims (2)

In a vehicle door opening and closing system that controls opening and closing so that a vehicle door is in a fully closed state or a fully open state,
A plurality of door opening / closing devices provided on a vehicle door or a vehicle body, wherein each door opening / closing device is engaged with an engagement member provided on the vehicle body or the vehicle door so as to be in a half latch state or a full latch state. A plurality of door opening and closing devices, each having a latch mechanism, a motor that drives the latch mechanism, and a latch state detection unit that detects a latch state of the latch mechanism;
When the vehicle door is changed from a fully open state to a fully closed state, all the plurality of door opening / closing devices are detected when it is detected that all the latch state detecting means of the plurality of door opening / closing devices are in a half latch state. Control means for starting driving the motor synchronously, and driving the latch mechanism so as to change from the half latch state to the full latch state;
A vehicle door opening and closing system comprising: The vehicle door opening and closing system according to claim 1,
An opening instruction signal output means for outputting an opening instruction signal to the control means when the vehicle door is changed from a fully closed state to a fully opened state;
The control means further starts synchronously driving all the motors of the plurality of door opening and closing devices in response to the input of the opening instruction signal from the opening instruction signal output means, and the latch mechanism is in the fully latched state. The vehicle door opening and closing system is driven so as to be in the half latch state.

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