JP2018135732A - Control apparatus of opening/closing body for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control apparatus of an opening/closing body for a vehicle capable of reducing unnecessary power consumption.SOLUTION: An ECU90, which is adopted in a door lock device provided with a closer mechanism to shift a striker and a latch from a half-latch state to a full-latch state, an original position device SW93 to detect an original position of the latch, and a closer system 9 determining whether a closing motor 50 is driving or not on the basis of a detected result by the original position device SW93, comprises a normal mode to determine whether the closing motor is driving or not, and a power-saving mode in which the determination is not done so that power consumption is less than that of the normal mode by an amount of power consumption consumed in the determination.SELECTED DRAWING: Figure 20

Description

  The present invention relates to a vehicle opening / closing body control device.

  Usually, a door lock device for a vehicle includes a striker on one of the vehicle door and the vehicle opening, and a latch on the other. The striker and the latch are engaged with each other by moving relative to the opening / closing operation of the vehicle door.

  The door lock device of Patent Document 1 transfers the driving force of the actuator to the latch through the sector gear so as to restrain the striker relative to the latch so as not to move relative to the latch, thereby shifting the latch from the half latch state to the full latch state. A closer unit for performing a so-called closing operation is provided.

Japanese Utility Model Publication No. 6-67775

  The door lock device of Patent Document 1 employs a microcomputer that executes control of the closer portion when the rotation of the latch is detected even when the closer portion is not required to be controlled due to a failure of the closer portion. That is, the microcomputer consumes electric power to execute unnecessary control of the closer part, and there is room for improvement.

  An object of the present invention is to provide a vehicle opening / closing body control device in which unnecessary power consumption is suppressed.

  In order to solve the above-described problem, a closing mechanism as a mechanical configuration that shifts the striker and the latch from the half-engaged state to the fully-engaged state when a driving force is applied, and each configuration of the closer mechanism. In contrast to a vehicle opening / closing body device including a detection unit for detecting a position and a closer system as an electrical configuration for supplying driving force to the closer mechanism based on a detection result of the detection unit, the vehicle opening / closing body control device is A normal mode for determining whether or not to apply a driving force to the closer mechanism based on a detection result of the detection unit, and whether or not to determine whether or not to apply a driving force to the closer mechanism. A power saving mode that consumes less power than the normal mode, and whether or not there is a malfunction in the vehicle opening / closing body device based on the detection result of the detection unit in the normal mode Determining, when a malfunction is determined to have occurred, and summarized in that the transition to the power saving mode.

  As long as it is a product, there is a risk that problems such as a decrease in position detection accuracy may occur in the detection unit due to aging degradation or the like. A situation where the striker and the latch cannot be shifted from the semi-engaged state to the fully-engaged state even if the vehicle opening / closing body device applies driving force to the closer mechanism based on the detection result of the detecting unit in which the malfunction occurs. May occur. When the striker and the latch cannot be normally shifted from the half-engaged state to the fully-engaged state, the power consumption correspondingly is wasted. As a result, there is a possibility that electric power that requires an electrical configuration other than the opening / closing control of the vehicle opening / closing body may be insufficient.

  In that respect, according to the present configuration, the vehicle opening / closing body device has a defect in the vehicle opening / closing body device based on the detection result of the detection unit, with the simple addition of the power saving mode to the normal mode. When it is determined that the problem occurs, the normal mode is shifted to the power saving mode. As a result, power consumption is reduced by not performing unnecessary control. In addition, since no driving force is applied to the closer mechanism, energy consumption is also suppressed in this respect.

  In the above-described configuration, in the normal mode, when the situation in which the malfunction in the vehicle opening / closing body device has occurred continuously for a set number of times set to a plurality of times, it is preferable to shift to the power saving mode. .

  By comprising in this way, it can judge more correctly that the malfunction has generate | occur | produced in the switch body apparatus for vehicles. In other words, for example, when there is a temporary malfunction such as occurrence of cranking or instantaneous interruption, the vehicle opening / closing body control device does not shift to the power saving mode. Since the transition to the unnecessary power saving mode is suppressed, the usability of the vehicle does not deteriorate.

  In the above-described configuration, it is preferable to determine whether or not there is a transition to the power saving mode using the detection unit as a trigger when the striker and the latch are in a half-engaged state.

  By determining the failure in the vehicle opening / closing body device at the timing at which the vehicle opening / closing body control device operates, power consumption is suppressed as compared with the case where the presence or absence of the failure is separately determined.

  In the above configuration, it is preferable to determine whether or not to shift to the power saving mode using the detection unit as a trigger when switching on / off of the power supplied to the closer system is switched.

  The timing for switching on / off the power supplied to the closer system is the timing when the vehicle door is closed, that is, when the striker and the latch are in a fully engaged state. At this timing, since the striker and the latch are in a completely engaged state and the state of each component of the vehicle opening / closing body device is constant, it is easy to more accurately determine whether there is a malfunction in the vehicle opening / closing body control device. .

  The vehicle opening / closing body control device of the present invention has an effect of suppressing unnecessary power consumption.

The perspective view which shows schematic structure of a door lock apparatus. The perspective view which shows schematic structure of a door lock apparatus. The top view which shows schematic structure of a door lock apparatus. The schematic structure of a latch mechanism, and operation | movement explanatory drawing (unlatching state). The schematic structure of a latch mechanism and operation | movement explanatory drawing (at the time of striker approach). Schematic configuration and operation explanatory diagram of the latch mechanism (half latch state). Schematic configuration and operation explanatory diagram of the latch mechanism (at the time of closing operation). Schematic configuration and operation explanatory diagram of the latch mechanism (full latch state). Schematic configuration and operation explanatory diagram of the latch mechanism (at the time of release operation). Schematic configuration and operation explanatory diagram of the latch mechanism (release completion state). Schematic configuration and operation explanatory diagram of the closer mechanism (half latch state: before closing operation). Schematic configuration and operation explanatory diagram of the closer mechanism (at the time of closing operation: meshing start). Schematic configuration and operation explanatory diagram of the closer mechanism (at the time of closing operation: latch lever rotation). The top view which shows the 1st drive gear and 2nd drive gear in a meshing start position. Schematic configuration and operation explanatory diagram of the closer mechanism (full latch state: closing operation completed). Schematic configuration and operation explanatory diagram of the closer mechanism (full latch state: initial position return). Schematic structure and operation explanatory diagram of the closer mechanism (full latch state: before release operation). Schematic configuration and operation explanatory diagram of the closer mechanism (at the time of release operation: lever contact). Schematic configuration and operation explanatory diagram of the closer mechanism (unlatched state: release operation completed). The block diagram which shows the electrical constitution of a closer system. The flowchart which shows the process sequence of ECU. The flowchart which shows the process sequence of ECU.

Hereinafter, an embodiment of a vehicle door lock device including an ECU as a control unit of a closer mechanism in the configuration will be described with reference to the drawings.
As shown in FIGS. 1 to 3, the vehicle door lock device 1 includes a latch mechanism 20 that engages with a striker 10 that relatively moves in accordance with an opening / closing operation of a vehicle door (not shown), and a relative position of the engaged striker 10. A closer mechanism 30 is provided as a mechanical structure for shifting the latch mechanism 20 from the half-latched state to the fully-latched state so as to be restrained so as not to move, and a closer system 9 is provided as an electrical structure for controlling the closer mechanism 30.

  In addition, the door lock device 1 of this embodiment is provided in the back door of the vehicle which is not shown in figure. And by restricting the striker 10 provided at the rear opening of the vehicle so as not to be relatively movable, the back door can be held in a fully closed state.

  More specifically, the door lock device 1 of this embodiment includes a base plate 42 having a striker input / output part 41. The latch mechanism 20 includes a latch 43 that engages with the striker 10 that has entered the striker entry / exit 41 and a pole 44 that engages with the striker 10.

  Specifically, the base plate 42 has a base portion 42a formed in a substantially flat plate shape. Note that the base plate 42 of the present embodiment is formed by plastic processing (pressing) a plate material. The striker entry / exit portion 41 is provided in a shape in which one end of the base portion 42a is cut out in a slit shape.

  Further, on the base portion 42a of the base plate 42, two support shafts 45 and 46 are erected in such a manner that the striker insertion / extraction portion 41 is sandwiched in the groove width direction (left and right direction in FIGS. 1 and 3). Yes. In the present embodiment, the support shafts 45 and 46 are provided so as to be rotatable in such a manner that the base end side penetrates the base portion 42 a of the base plate 42. The latch 43 and the pole 44 are configured to rotate integrally with the support shafts 45 and 46 by being fixed to the support shafts 45 and 46, respectively.

  More specifically, as shown in FIGS. 4 to 10, the latch 43 formed in a substantially flat plate is formed with a striker engagement groove 47 that opens to the outer peripheral surface thereof. The latch 43 is urged to rotate counterclockwise in each figure by a latch urging spring (coil spring) (not shown). Further, the latch 43 is brought into contact with a stopper portion (not shown) provided on the base plate 42 so that the latch bias spring of the latch biasing spring is located at a position where the opening end of the striker engagement groove 47 faces the striker input / output portion 41. The rotation based on the urging force is restricted. Then, the latch mechanism 20 of the present embodiment is configured such that the striker 10 that has entered the striker entry / exit portion 41 is engaged with the striker engagement groove 47 of the latch 43.

  On the other hand, the pole 44 is urged to rotate clockwise in each figure by a pole urging spring (torsion coil spring) (not shown). Further, the pawl 44 is provided with an engaging portion 44a that moves in a direction approaching the outer peripheral surface of the latch 43 by rotation based on the biasing force of the pole biasing spring. Further, the pole 44 is configured such that the engaging portion 44 a engages with the outer peripheral surface of the latch 43 in a state where the striker 10 is engaged with the striker engaging groove 47. And the latch mechanism 20 of this embodiment can hold | maintain the state which the striker 10 engages with the striker engaging groove 47 of the latch 43 by this.

  That is, as shown in FIGS. 5 and 6, the striker 10 that has entered the striker entry / exit portion 41 engages with the striker engagement groove 47, thereby pressing the latch 43 and moving inside the striker entry / exit portion 41. It moves relative to the side (from the bottom to the top in each figure). As a result, the latch 43 rotates in the clockwise direction in each figure against the biasing force of the latch biasing spring.

  At this time, the engaging portion 44a of the pawl 44 is apparently slid on the outer peripheral surface of the latch 43 in contact with the latch 43 while being pressed against the outer peripheral surface of the latch 43 based on the biasing force of the pole biasing spring. Move. Then, the latch mechanism 20 of the present embodiment is configured to rotate the latch 43 by engaging the engaging portion 43a on the pole 44 side with the engaging portion 43a on the latch 43 side formed on the outer peripheral surface thereof. Are now regulated.

  Specifically, in the present embodiment, the engaging portion 43a on the latch 43 side is the opening end of the striker engaging groove 47, more specifically, the side that is pressed when the striker 10 is engaged (in each figure). The upper side wall surface is set. Then, the latch mechanism 20 of the present embodiment restricts the rotation in the biasing direction by the latch biasing spring, that is, in the direction in which the striker 10 is discharged from the striker engaging groove 47. 43 is configured to hold the state in which the striker 10 is engaged (corresponding to a half-latch state and a half-engaged state).

  Further, the door lock device 1 according to the present embodiment is configured such that when the latch mechanism 20 is in a half latch state, the closer mechanism 30 is operated to close the latch mechanism 20. ing.

  That is, as shown in FIGS. 7 and 8, the latch mechanism 20 of the present embodiment is driven by the closer mechanism 30, so that the rotation position corresponding to the half-latch state (see FIG. 6, half-latch position Ph). The latch 43 is configured to rotate in the closing direction (clockwise direction in each figure) against the biasing force of the latch biasing spring. In addition, the pawl 44 engages with a second engaging portion 43b formed on the peripheral surface of the latch 43, so that the pawl 44 is latched at a position rotated in the closing direction (see FIG. 8, full latch position Pf). The latch 43 is configured to be restricted from rotating based on the urging force of the urging spring. Then, the latch mechanism 20 of this embodiment shifts to a full latch state (corresponding to a fully engaged state) in which the striker 10 that engages with the striker engaging groove 47 of the latch 43 is restrained so as not to be relatively movable. It is configured.

  Furthermore, the door lock device 1 of the present embodiment is configured such that the closer mechanism 30 is operated to release the latch mechanism 20 based on, for example, an operation input to an opening operation switch (not shown).

  That is, as shown in FIGS. 9 and 10, the latch mechanism 20 of the present embodiment is driven by the closer mechanism 30 so that the pole 44 resists the biasing force of the pole biasing spring in each figure. , It is configured to rotate counterclockwise (release position Pr). Further, the latch 43 is thereby released from the rotation restriction due to the engagement with the pawl 44, so that the latch 43 rotates in the anti-close direction based on the urging force of the latch urging spring (in FIG. Clockwise). Then, the latch mechanism 20 according to the present embodiment releases the restraint of the striker 10 and discharges the striker 10 from the striker engagement groove 47 so as to return to the unlocked state as shown in FIG. It is configured.

(Closer mechanism)
Next, the closer mechanism 30 provided in the door lock device 1 of the present embodiment will be described.

  As shown in FIGS. 1 to 3, the closer mechanism 30 of the present embodiment includes an actuator 51 that uses a close motor 50 as a drive source, and a speed reduction mechanism 52 that decelerates the rotation of the actuator 51.

  Specifically, the door lock device 1 of the present embodiment is erected on the base portion 42a of the base plate 42 together with the support shafts 45 and 46 of the latch 43 and the pole 44 constituting the lock member of the latch mechanism 20 as described above. Two support shafts 55 and 56 are provided. In the present embodiment, the base end portions of the support shafts 55 and 56 are fixed so as not to rotate relative to the base portion 42a of the base plate 42. Further, reduction gears (61, 62) are pivotally supported on the support shafts 55, 56, respectively. In the speed reduction mechanism 52 of the present embodiment, the output gear (not shown, pinion or worm) of the actuator 51 is meshed with the first speed reduction gear 61 side supported by the support shaft 55. .

  Specifically, in the present embodiment, a pinion gear 63 that rotates integrally with the first reduction gear 61 is supported on the support shaft 55. In the present embodiment, the pinion gear 63 is integrally formed with the first reduction gear 61 together with the spacer 64 interposed therebetween. The second reduction gear 62 is supported by the support shaft 56 in a state where the second reduction gear 62 meshes with the pinion gear 63. The reduction mechanism 52 of the present embodiment is based on the gear ratio between the output gear of the actuator 51 (not shown) and the first reduction gear 61 and the gear ratio between the pinion gear 63 and the second reduction gear 62. The rotation of the actuator 51 is decelerated.

  Further, the closer mechanism 30 of the present embodiment includes a first drive gear 71 driven by the actuator 51 via the speed reduction mechanism 52 and a second drive gear 72 that rotates by meshing with the first drive gear 71. I have. In the present embodiment, the first drive gear 71 is formed integrally with the second reduction gear 62 that constitutes the final gear of the reduction mechanism 52. The second drive gear 72 is formed integrally with a latch lever 73 that is pivotally supported by the support shaft 45 of the latch 43.

  Specifically, the latch lever 73 of this embodiment includes a connecting portion 73 a that has a substantially flat outer shape and is arranged in parallel with the latch 43 by being pivotally supported by the support shaft 45. A plurality of gear teeth 74 arranged in the circumferential direction are formed at the peripheral edge of the connecting portion 73a. Thus, the latch lever 73 of the present embodiment is configured such that the connecting portion 73a and the sector gear 75 functioning as the second drive gear 72 are integrally formed.

  Further, the latch lever 73 includes a lever portion 73b extending from the peripheral portion of the connecting portion 73a to the latch 43 side along the extending direction of the support shaft 45. The latch 43 of this embodiment is provided with an engaging portion 43d for the lever portion 73b.

  That is, the latch lever 73 rotates when the driving force of the actuator 51 is transmitted through the first driving gear 71 that meshes with the second driving gear 72. The closer mechanism 30 according to the present embodiment is configured to cause the latch mechanism 20 to close by rotating the latch 43 with the latch lever 73.

  More specifically, as shown in FIGS. 11 to 16, the first drive gear 71 of the present embodiment has a sector gear 77 that meshes with the second drive gear 72 in the circumferential range where the gear teeth 76 are formed. Is used. The initial position P0 of the first drive gear 71 is set to a rotational position that does not mesh with the second drive gear 72.

  That is, the closer mechanism 30 of the present embodiment is configured such that the torque transmission path of the actuator 51 is disconnected between the first drive gear 71 and the second drive gear 72 in the normal state of being in a standby state. Has been. Thus, by allowing the latch 43 to freely rotate, the smooth operation of the latch mechanism 20 is ensured. Specifically, the transition from the unlatched state to the half latched state and the transition from the full latched state to the unlatched state are smoothly performed.

  Further, as shown in FIGS. 11 to 13, the closer mechanism 30 of the present embodiment has its speed reduction mechanism 52 during the closing operation after the latch mechanism 20 shifts to the half latch state by the engagement of the striker 10 with the latch 43. The second reduction gear 62 constituting the final gear is configured to rotate in the counterclockwise direction (first direction) in each drawing. That is, when the first drive gear 71 rotates integrally with the second reduction gear 62 and shifts from a state where it does not mesh with the second drive gear to a state where it meshes with the second drive gear 72, the closing operation is performed. The torque transmission path of the actuator 51 is established. The closer mechanism 30 of the present embodiment is configured so that the latch lever 73 formed integrally with the second drive gear 72 is closed in the closing direction (in the drawings) based on the drive force transmitted to the second drive gear 72. (Clockwise direction).

  Here, as shown in FIG. 12 and FIG. 14, the first drive gear 71 and the second drive gear 72 of the present embodiment have the gear tooth intervals α1 and β1 at the portions where the meshing thereof is started, respectively. It is set wider than the gear tooth intervals α0, β0 of other portions. Specifically, the sector gear 77 constituting the first drive gear 71 has a second gear tooth 76b and a third gear between the first gear tooth 76a and the second gear tooth 76b constituting the meshing start end. It has a gear shape that is wider than between the teeth 76c and between the gear teeth 76c to 76e thereafter. Similarly, the sector gear 75 constituting the second drive gear 72 also has a second gear tooth 74b and a third gear tooth between the first gear tooth 74a and the second gear tooth 74b constituting the meshing start end. 74c, and a gear shape that is wider than that between the gear teeth 74c to 74e thereafter. Thus, the closer mechanism 30 of the present embodiment is configured so that the gear teeth 74 and 76 do not interfere when the meshing of the first drive gear 71 and the second drive gear 72 is started. Yes.

  Further, the latch lever 73 of the present embodiment is provided so as to be rotatable relative to the support shaft 45 of the latch 43. Then, the closer mechanism 30 according to the present embodiment has its latch lever at the rotation position (engagement start position P1) where the engagement of the first drive gear 71 with the second drive gear 72 is started as shown in FIG. The lever portion 73 b of 73 is configured not to engage with the engaging portion 43 d of the latch 43.

  Specifically, the latch lever 73 of the present embodiment is configured such that a lever portion 73 b extending in the extending direction of the support shaft 45 is disposed on the radially outer side of the latch 43. Further, the engaging portion 43 d of the latch 43 is provided so as to protrude radially outward from the peripheral portion of the latch 43. As shown in FIG. 12, the closer mechanism 30 of the present embodiment includes a lever portion 73b that constitutes an engaging portion on the latch lever 73 side when the first drive gear 71 is in the meshing start position P1. A gap X in the circumferential direction is formed between the engaging portion 43d on the latch 43 side.

  That is, the closer mechanism 30 of the present embodiment has a latch lever 73 formed integrally with the second drive gear 72 due to the presence of the gap X when the first drive gear 71 and the second drive gear 72 are engaged with each other. The lever portion 73b runs idle without engaging with the engaging portion 43d of the latch 43.

  Specifically, as shown in FIG. 13, the gap X is a rotational position where the first drive gear 71 and the second drive gear 72 are engaged with each other by a plurality of gear teeth 74 and 76 (see FIG. 13). It disappears at the mesh establishment position P2). That is, the lever portion 73 b of the latch lever 73 that runs idle is set to abut on the engaging portion 43 d of the latch 43. Further, the lever portion 73b of the latch lever 73 that contacts the engaging portion 43d of the latch 43 presses the engaging portion 43d of the latch 43 in the circumferential direction. Then, the closer mechanism 30 of the present embodiment causes the latch 43 to be driven by the driving force of the actuator 51 in a state where the stable engagement between the first driving gear 71 and the second driving gear 72 is established. It can be rotated in the closing direction.

  As shown in FIGS. 15 and 16, the closer mechanism 30 of the present embodiment has a second mechanism when the latch mechanism 20 is in a fully latched state, that is, when the closing operation of the latch mechanism 20 is completed. The rotation direction of the reduction gear 62 and the first drive gear 71 is configured to be reversed (rotation in the clockwise direction in the figure). As a result, the rotation position of the first drive gear 71 is shifted from the close completion position P3 (see FIG. 15) where the closing operation of the latch mechanism 20 is completed to the initial position P0 (FIG. 16) that does not mesh with the second drive gear 72. The closing operation is terminated by returning to (see).

  That is, in the full latch state, the rotation of the latch 43 based on the biasing force of the latch biasing spring is restricted based on the engagement relationship with the pawl 44 (see FIG. 8). The lever portion 73b of the latch lever 73 is configured to press the engaging portion 43d of the latch 43 only when the latch lever 73 rotates in the closing direction. The door lock device 1 according to the present embodiment thus allows the latch lever 73 to rotate in the anti-close direction (counterclockwise direction in the figure) as the first drive gear 71 rotates in the reverse direction. Also, the latch mechanism 20 is held in a fully latched state.

  Further, as shown in FIGS. 2, 3, and 14, the latch lever 73 of the present embodiment is rotationally biased in the anti-close direction based on the biasing force of the lever biasing spring 78 (torsion coil spring). ing. Specifically, the closer mechanism 30 of the present embodiment is configured to hold the housing 79 on the base portion 42 a of the base plate 42. Each urging spring (for latch and for pole) including the lever urging spring 78 is held by the housing 79.

  Further, in the present embodiment, the housing 79 is provided with a stopper portion 80 that restricts the rotation of the latch lever 73 by contacting the latch lever 73 biased by the lever biasing spring 78. . Then, the closer mechanism 30 of the present embodiment allows the first drive gear 71 and the second drive gear 72 to engage with each other when the first drive gear 71 and the second drive gear 72 are not engaged with each other. One gear tooth 74a) is held at a predetermined meshing start position P1 ′.

  As shown in FIGS. 1, 2, and 17 to 19, the closer mechanism 30 according to the present embodiment includes a pressing pin 81 that rotates integrally with the first drive gear 71, and presses against the pressing pin 81. And an open lever 82 that rotates by being operated.

  The pressing pin 81 of the present embodiment has an axial shape extending along the extending direction of the support shaft 56 and is fixed to the second reduction gear 62. The open lever 82 is pivotally supported on the support shaft 56 of the second reduction gear 62. Further, in the present embodiment, the pressing pin 81 and the open lever 82 are opposite to the sector gear 77 constituting the first drive gear 71 in the extending direction of the support shaft 56, that is, in FIG. 1 and FIG. It is arranged above the reduction gear 62. Then, the closer mechanism 30 of the present embodiment has a second direction opposite to the first direction meshing with the first drive gear 71 and the second drive gear 72 during the closing operation (clockwise in FIGS. 17 to 19). When the second reduction gear 62 rotates in the direction), the pressing pin 81 as the pressing member presses the open lever 82.

  Specifically, the open lever 82 has a substantially L-shaped plate shape whose base end side is pivotally supported by the support shaft 56. Note that the open lever 82 of the present embodiment is formed by plastic processing (press processing) of a plate material. Further, a pressing portion 82a is formed at the tip portion of the open lever 82 by bending. The contact portion 82b with the pressing pin 81 has an arc shape that is curved in accordance with the axial shape (cylindrical shape) of the pressing pin 81.

  In the present embodiment, the support shaft 46 of the pole 44 is provided with a lift lever 84 that rotates integrally with the pole 44. The lift lever 84 of the present embodiment has a substantially L-shaped lever body 84a that is fixed to the support shaft 46 so that the tip side extends along the axial direction of the support shaft 46, and the side of the lever body 84a. An abutting portion 84b extending in the direction. The lift lever 84 is also formed by plastic working (pressing) a plate material. The closer mechanism 30 according to the present embodiment is configured to release the latch mechanism 20 when the pressing portion 82a of the open lever 82 presses the contact portion 84b of the lift lever 84 and rotates the pole 44. It has become.

  More specifically, as shown in FIGS. 17 to 19, the pressing pin 81 of this embodiment is a position where the support shaft 56 is sandwiched between the first gear teeth 74 a of the sector gear 77 constituting the first drive gear 71. That is, it is fixed to the second reduction gear 62 at a position separated by approximately 180 ° in the circumferential direction. The initial position P0 ′ of the pressing pin 81 is set to a rotation position that does not come into contact with the open lever 82 pivotally supported by the support shaft 56 of the second reduction gear 62.

  That is, the closer mechanism 30 according to the present embodiment is in a state in which the torque transmission path of the actuator 51 is cut between the pressing pin 81 and the open lever 82 in the normal state (see FIG. 11) in the standby state. It is configured as follows. Thus, by allowing the pawl 44 to freely rotate, the smooth operation of the latch mechanism 20 is ensured.

  Further, the closer mechanism 30 of the present embodiment has a second reduction gear 62 that constitutes the final gear of the reduction mechanism 52 during a release operation based on an opening operation request such as an operation input to an opening operation switch (not shown). It is configured to rotate in the second direction (counterclockwise direction in each figure). Then, as shown in FIG. 18, the pressing pin 81 of the present embodiment thereby rotates integrally with the second reduction gear 62 together with the first drive gear 71, thereby contacting the contact portion 82 b of the open lever 82. It comes into contact (contact position P4).

  That is, in the present embodiment, the torque transmission path of the actuator 51 during the release operation is established by shifting the pressing pin 81 to the open lever 82 and pressing the open lever 82 in this manner. . Then, as shown in FIG. 19, the closer mechanism 30 of the present embodiment is configured such that the open lever 82 that rotates integrally with the pressing pin 81 presses the lift lever 84, and thereby the support mechanism 56 passes through the support shaft 56. The pole 44 connected to the lift lever 84 is configured to rotate in a direction away from the latch 43 (release direction, counterclockwise direction in the figure).

  Further, in the closer mechanism 30 of the present embodiment, when the latch mechanism 20 is brought into an unlatched state by releasing the engagement between the latch 43 and the pawl 44, that is, when the release operation of the latch mechanism 20 is completed. Is configured such that the rotation direction of the second reduction gear 62 and the pressing pin 81 is reversed (rotation in the counterclockwise direction in the figure). Then, similarly to the above-described closing operation, the rotation position of the pressing pin 81 is returned from the release completion position P5 where the release operation of the latch mechanism 20 is completed to the initial position P0 ′, so that the release operation is performed. It is configured to end.

  As shown in FIGS. 2 and 3, the open lever 82 of this embodiment is rotationally biased by the biasing force of the torsion coil spring 85 that is fitted into the support shaft 56. Further, the open lever 82 is in contact with a stopper (not shown) so that the rotation based on the urging force of the torsion coil spring 85 is restricted. And the closer mechanism 30 of this embodiment is comprised so that the contact position P4 (refer FIG. 18) of the press pin 81 with respect to the open lever 82 may become fixed by this.

More specifically, as shown in FIG. 1, the closer system 9 of the present embodiment includes an ECU 90 that supplies driving power to the closing motor 50 of the actuator 51.
The ECU 90 of the present embodiment is in the half latch SW 91 that detects that the rotation position of the latch 43 is in the half latch position Ph corresponding to the half latch state (see FIG. 6), and in the full latch position Pf that corresponds to the full latch state. (See FIG. 8), that is, connected to the courtesy SW 92 that detects the open / closed state of the vehicle door.

  Further, the ECU 90 is connected to the original position SW93 that detects that the rotation position of the latch lever 73 is the original position Pm that does not affect the rotation of the latch 43 (see FIG. 11). The original position of the latch lever 73 is defined as a position where the latch lever 73, in particular, the lever portion 73b is not located on the rotation locus of the engaging portion 43d of the latch 43.

  In addition, a release signal indicating that the restraint of the striker 10 by the latch mechanism 20 should be released is input to the ECU 90, for example, when an opening operation switch (not shown) is operated.

  The ECU 90 of the present embodiment is configured to control the rotation of the close motor 50 that supplies the driving power, that is, the operation of the actuator 51, based on the output signals of these switches.

  More specifically, as shown in FIG. 20, the ECU 90 includes an input / output circuit to which battery power + B is input, an input / output power supply circuit, a wakeup input circuit, an input circuit, an output circuit, and a microcomputer 96. The output circuit has a relay 97 for switching the power supply path to the close motor 50. When the microcomputer 96 switches the contact state of the relay 97, the driving direction of the close motor 50 is switched.

  The ECU 90 has two programs: a normal mode in which the control of the close motor 50 is executed, and a power saving mode in which the control of the close motor 50 is not executed. The ECU 90 in the normal mode executes processing based on a processing procedure described below based on a predetermined trigger.

When the normal mode and the power saving mode are compared, the power consumed by the ECU 90 is less in the power saving mode because the control of the close motor 50 is not executed.
Next, a processing procedure of the ECU 90 (normal mode) when it is detected that a vehicle door (not shown) is closed and the latch 43 is located at the half latch position Ph will be described. It is assumed that both the original position SW abnormality flag and the continuous reset detection flag are OFF. Here, the original position SW abnormality flag and the continuous reset detection flag are stored in a storage unit (not shown) set in the ECU 90.

  In this example, when the half latch SW 91 is ON, the latch 43 is not located at the half latch position Ph. When the half latch SW 91 is OFF, the latch 43 is at the half latch position Ph. It is located at. When the original position SW93 is ON, the latch lever 73 is not located at the original position Pm. When the original position SW93 is OFF, the latch lever 73 is located at the original position Pm. Indicates. Further, when the courtesy SW 92 is ON, the vehicle door (not shown) is open (not fully closed), and when the courtesy SW 92 is OFF, the vehicle door (not shown) is closed. (It is in the fully closed state).

  As shown in FIG. 21, the ECU 90 starts the closer delay time when the process is started by the fact that the half latch SW 91 is switched from ON to OFF while both the original position SW abnormality flag and the continuous reset detection flag are OFF. (Step S1), it is determined whether or not the original position SW93 is OFF (step S2).

If YES in step S2, that is, if the original position SW93 is OFF, the ECU 90 drives the close motor 50 to rotate forward (step S3). Thereafter, the ECU 90 determines whether or not the half latch SW 91 has been switched from OFF to ON, and if this does not hold, whether or not the forward overtime has elapsed (step S4).
If YES in step S4, that is, if the half latch SW91 is switched from OFF to ON, or if the forward overtime has elapsed, the ECU 90 stops the close motor 50 (step S5) and counts the relay protection time (step S5). Step S6).

  Note that the latch lever 73 rotates clockwise by the forward rotation of the close motor 50. Along with this, the latch 43 moves with the latch lever 73 and rotates clockwise, thereby pulling the striker 10 (close operation). As a result, the vehicle door is shifted from the half door state to the fully closed state. Further, when the half latch SW 91 is switched from OFF to ON, the original position SW 93 is inevitably switched from OFF to ON.

Next, the ECU 90 drives the close motor 50 in reverse (step S7), and then determines whether or not the original position SW93 has been switched from ON to OFF (step S8).
If YES in step S8, that is, if the original position SW93 is switched from ON to OFF, the ECU 90 resets the original position SW abnormality detection counter Cs (Cs = 0), and then stops the close motor 50 (step S9). (Step S10), a series of processing ends.

  If NO in step S4, that is, if the half latch SW 91 is not switched from OFF to ON and the forward overtime has not elapsed, the ECU 90 proceeds to step S2.

  If NO in step S2, that is, if the original position SW93 is ON, the ECU 90 drives the close motor 50 in reverse (step S11), and then whether or not the original position SW93 is switched from ON to OFF is established. If not, it is determined whether or not the reverse overtime has elapsed (step S12).

  If YES in step S12, that is, if the original position SW93 is switched from ON to OFF, or if the reverse overtime has elapsed, the ECU 90 stops the close motor 50 (step S13) and counts the relay protection time ( In step S14), the process proceeds to step S3.

  Note that if NO in step S12, that is, if the original position SW93 is not switched from ON to OFF and the reverse overtime has not elapsed, the ECU 90 proceeds to step S11.

If NO in step S8, that is, if the original position SW93 is not switched from ON to OFF, the ECU 90 determines whether or not the reverse overtime has elapsed (step S15).
If YES in step S15, that is, if the reverse overtime has elapsed, the ECU 90 increments the original position SW abnormality detection counter Cs (Cs ← Cs + 1) (step S16), and then the original position SW abnormality detection counter Cs It is determined whether or not the set value is exceeded (step S17). In this example, it is assumed that the setting value for determining abnormality is set to 20, but this setting value can be changed as appropriate.

  If YES in step S17, that is, if the original position SW abnormality detection counter Cs is greater than or equal to the set value, the ECU 90 switches the original position SW abnormality flag from OFF to ON (step S18), and the process proceeds to step S9. .

If NO in step S15, that is, if the reverse overtime has not elapsed, the ECU 90 proceeds to step S7.
If NO in step S17, that is, if the original position SW abnormality detection counter Cs is less than the set value, the ECU 90 proceeds to step S10.

  Next, the processing procedure of the ECU 90 when the power supply is reset will be described. The power reset means that the power supplied from the battery to the closer system 9 is turned on and off by operating the start switch of the vehicle.

As shown in FIG. 22, when the process is started with a power reset as a trigger, the ECU 90 determines whether or not the original position SW93 is OFF (step S21).
If YES in step S21, that is, if the original position SW93 is OFF, the ECU 90 resets the continuous reset detection counter Cr (Cr = 0) (step S22) and ends the series of processes.

  If NO in step S21, that is, if the original position SW93 is ON, the ECU 90 increments the continuous reset detection counter Cr (Cr ← Cr + 1) (step S23), and then the continuous reset detection counter Cr is greater than or equal to the set value. Is determined (step S24). In this example, it is assumed that the setting value for determining abnormality is set to 20, but this setting value can be changed as appropriate.

  If YES in step S24, that is, if the continuous reset detection counter Cr is greater than or equal to the set value, the ECU 90 switches the continuous reset flag from OFF to ON (step S25), and the process proceeds to step S22.

  If NO in step S24, that is, if the continuous reset detection counter Cr is less than the set value, the ECU 90 drives the close motor 50 in reverse (step S26), and then the original position SW93 is switched from ON to OFF. If this is not true, it is determined whether or not the reverse overtime has elapsed (step S27).

  If YES in step S27, that is, if the original position SW93 is switched from ON to OFF, or if the reverse rotation overtime has elapsed, the ECU 90 stops the close motor 50 (step S28) and ends the series of processes.

  If NO in step S27, that is, if the original position SW93 is not switched from ON to OFF and the reverse overtime has not elapsed, the ECU 90 proceeds to step S26.

  21 and 22, the ECU 90 determines whether or not at least one of the original position SW abnormality flag and the continuous reset detection flag is ON. When at least one of the original position SW abnormality flag and the continuous reset detection flag is ON, the ECU 90 shifts from the normal mode to the power saving mode.

  The ECU 90 that has shifted to the power saving mode notifies that the pull-in from the half latch position Ph of the latch 43 to the full latch position Pf by the control of the close motor 50 is not executed through various notification units (for example, a speaker, a display, or the like). Is desirable.

Note that, in a dealer, a maintenance shop, or the like, the transition from the power saving mode to the normal mode is impossible unless the program is rewritten by external connection to the ECU 90.
Next, the effect of the door lock device by adopting the ECU 90 will be described.

  When either the original position SW abnormality flag or the continuous reset detection flag is ON, the closer mechanism 30 employs an ECU 90 that shifts from the normal mode to the power saving mode in which the control of the closing motor 50 is not performed with little power consumption. .

  As long as it is a product, there is a possibility that a malfunction such as a decrease in position detection accuracy may occur in the original position SW93 due to aged deterioration or the like. Even if the close motor 50 is driven based on the detection result of the original position SW93 where the malfunction occurs and the driving force is transmitted to the latch 43, the striker 10 and the latch 43 are shifted from the half latch state to the full latch state. Situation may occur. When the striker 10 and the latch 43 are not normally shifted from the half latch state to the full latch state, the power consumption corresponding thereto, that is, the power consumed by the close motor 50 and consumed by the ECU 90 for control. Power is wasted. As a result, there is a possibility that the electric power required for the electrical configuration other than the door lock device 1 employed in the vehicle is insufficient.

  In this regard, according to the present configuration, when it is determined that a problem has occurred in the original position SW93 by simply adding the power saving mode to the normal mode of the ECU 90, it is possible to save power from the normal mode. Transition to mode. As a result, power consumption is reduced by the amount that ECU 90 does not perform unnecessary control. Moreover, since the close motor 50 is not driven, power consumption is also suppressed in the close motor 50.

  Further, the ECU 90 of this example does not switch the original position SW abnormality flag from OFF to ON unless the original position SW abnormality detection counter Cs reaches a set value (here, 20) or more. Further, the ECU 90 does not switch the continuous reset flag from OFF to ON unless the continuous reset detection counter Cr reaches a set value (here, 20) or more. That is, ECU 90 does not shift from the normal mode to the power saving mode unless the situation in which the problem has occurred continues for a set number of times set to a plurality of times.

  By configuring in this way, it is possible to more accurately determine that a problem has occurred in the original position SW93. In other words, for example, when there is a temporary malfunction such as the occurrence of cranking or instantaneous interruption, the ECU 90 does not shift to the power saving mode. Since the transition to the unnecessary power saving mode in the ECU 90 is suppressed, the usability of the vehicle does not deteriorate.

  In addition, the ECU 90 determines whether or not there is a transition to the power saving mode, triggered by the fact that the striker 10 and the latch 43 are in the half latch state. Thus, by performing at the timing at which the door lock device 1 operates, power consumption is suppressed as compared with a case where the presence or absence of a defect is separately determined.

Further, the ECU 90 determines whether or not to shift to the power saving mode, triggered by switching of the on / off of the power supplied to the closer system 9 as a trigger.
The timing when the on / off of the power supplied to the closer system 9 is switched is the timing when the vehicle door is closed, that is, when the striker 10 and the latch 43 are fully engaged. At this timing, since the state of each component of the door lock device 1 is constant, it is easy to more accurately determine whether or not there is a problem in the original position SW93.

In addition, you may change the said embodiment as follows.
-Although the said embodiment was actualized in the door lock apparatus 1 provided in the back door of the vehicle, you may apply to the door lock apparatus used for another door.

  In the above embodiment, the first drive gear 71 is driven by the actuator 51 via the speed reduction mechanism 52, but the torque transmission path from the actuator 51 to the first drive gear 71 can be arbitrarily changed. Good.

  In the above embodiment, the second drive gear 72 rotates the latch 43 based on the drive force of the actuator 51 transmitted by meshing with the first drive gear 71. The structure which rotates the pole 44 may be sufficient.

  In the above embodiment, the pressing pin 81 having an axial shape is used as the pressing member, but the shape of the pressing member may be arbitrarily changed. The shapes of the open lever 82 as the lever member and the lift lever 84 provided on the support shaft 46 of the pole 44 may also be arbitrarily changed.

-As for each structure of the door lock apparatus 1 in the said embodiment, if the rotation aspect of the latch 43 is ensured, a shape etc. may be changed suitably.
In the above embodiment, the ECU 90 does not have to perform the process associated with the power reset, that is, the process in FIG.

  In the above embodiment, the set value of the original position SW abnormality detection counter Cs for switching the original position SW abnormality flag from OFF to ON may be changed as appropriate as long as it is set a plurality of times.

  In the above embodiment, the setting value of the continuous reset detection counter Cr for switching the continuous reset flag from OFF to ON may be changed as appropriate as long as it is set to a plurality of times.

  In the above embodiment, the detection unit for determining a defect in this example is the original position SW93, but may be changed to a half latch SW91, a courtesy SW92, or the like. Further, a plurality of SWs may be determined at the same time.

-In above-mentioned embodiment, ECU90 may abbreviate | omit the count of the closer delay time and the relay protection time among the processes shown in FIG.
In the above embodiment, the electrical configuration of the ECU 90 shown in FIG. 20 is an example, and may be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 ... Door lock device, 9 ... Closer system, 10 ... Striker, 20 ... Latch mechanism, 30 ... Closer mechanism, 43 ... Latch, 50 ... Close motor, 51 ... Actuator, 52 ... Reduction mechanism, 61 ... First reduction gear, 62 ... 2nd reduction gear, 71 ... 1st drive gear, 72 ... 2nd drive gear, 73 ... Latch lever (lever member), 75 ... Sector gear, 77 ... Sector gear, 90 ... ECU, 91 ... Half latch SW, 92 ... Courtesy SW, 93 ... Original position SW, 96 ... Microcomputer, 97 ... Relay.

Claims (4)

A closer mechanism as a mechanical configuration that shifts the striker and the latch from the semi-engaged state to the fully-engaged state by applying the driving force;
A detection unit for detecting the position of each component of the closer mechanism;
With respect to a vehicle opening / closing body device comprising a closer system as an electrical configuration for supplying a driving force to the closer mechanism based on a detection result of the detection unit,
A normal mode for determining whether or not to apply driving force to the closer mechanism based on the detection result of the detection unit, and whether or not to determine whether or not to apply driving force to the closer mechanism. A power saving mode that consumes less power than the mode, and in the normal mode, based on the detection result of the detection unit, the presence / absence of a defect in the vehicle opening / closing body device is determined, and a defect has occurred. When it is determined, the vehicle opening / closing body control device that shifts to the power saving mode. The vehicle opening / closing body control device according to claim 1,
In the normal mode, the vehicle opening / closing body control device that shifts to the power saving mode when a situation in which a problem occurs in the vehicle opening / closing body device continuously occurs a set number of times set to a plurality of times. In the vehicle opening / closing body control device according to claim 1 or 2,
A vehicular opening / closing body control device that determines whether or not there is a transition to the power saving mode using the detection unit as a trigger when the striker and the latch are in a half-engaged state. In the vehicle opening / closing body control device according to any one of claims 1 to 3,
A vehicular opening / closing body control device that determines whether or not to shift to the power saving mode by using the detection unit as a trigger when switching on / off of the power supplied to the closer system is switched.

Images