JP2017197912A - Door lock system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door lock system that avoids unexpected opening of a vehicle door due to self-weight.SOLUTION: A door lock system includes: a door lock device having a latch mechanism that holds a vehicle door by engaging with a striker, and a release mechanism that disengages the latch mechanism from the striker by release-driving a release motor; an internal electric operation part provided on a grip G on an indoor side of a side door; and a controller for release-driving a release electric motor as operated on the internal electric operation part. The internal electric operation part includes a first internal operation switch SW2 for instructing the controller to release-drive the release motor, and a second internal operation switch SW12 for detecting gripping of the grip G by a driver.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a door lock system for a vehicle such as an automobile.

  The vehicle door drive device described in Patent Document 1 is a drive device for a vehicle door that can be manually opened such as a side door, and the vehicle door drive device is operated in response to an operation on a switch provided on an inside handle of the vehicle door. The door is automatically opened to a predetermined pop-up position before the fully opened state. Then, based on the inclination of the vehicle detected by the three-axis acceleration sensor, when the vehicle door is opened by its own weight due to the inclination of the vehicle, the vehicle door opened to the pop-up opening is held by the electromagnetic brake. .

Japanese Patent Laying-Open No. 2015-14126

  When a vehicle door that is opened by its own weight is held by an electromagnetic brake, a large output may be required for the electromagnetic brake depending on the inclination of the vehicle. In addition, when an external force in the opening direction is applied to the vehicle door, such as in the process of opening to the pop-up opening, or when the vehicle door in the state opened to the pop-up opening is blown by the wind, the electromagnetic brake does not work. The vehicle door may inadvertently open to the fully open state. If the vehicle door is inadvertently opened to the fully open state, for example, when there is an obstacle on the outside of the vehicle, the vehicle door and the obstacle collide, and there is a concern about damage to the vehicle door and the obstacle.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a door lock system that can prevent a vehicle door from being inadvertently opened due to its own weight.

  The door lock system according to one aspect of the present invention releases the engagement of the latch mechanism with the striker by the release drive of the release motor as a drive source and the latch mechanism that engages with the striker to hold the vehicle door. A door lock device having a release mechanism, an internal electrical operation unit provided in a grip inside the vehicle door, and a control for releasing the release motor in response to an operation on the internal electrical operation unit A first operation element for instructing the control unit to release the release motor, and a second operation element for detecting gripping of the grip by an occupant. Have.

  ADVANTAGE OF THE INVENTION According to this invention, the door lock system which can avoid that a vehicle door opens carelessly with dead weight can be provided.

It is a side view of the motor vehicle provided with the door lock system concerning the present invention. It is a perspective view of the vehicle outside of a side door. It is a front view of the vehicle inner side of a side door. It is a perspective view of the door lock device of FIG. It is a partially exploded perspective view of the door lock device. It is an exploded perspective view of a door lock device similarly. It is a rear view of the door lock device. It is a side view of the principal part when the locking / unlocking mechanism of the door lock device is in an unlocked state. It is a side view of the principal part when it is also in a locked state. It is a side view of the principal part of the state which carried out the electric release operation | movement similarly in the unlocked state. It is a side view of the principal part of the state which carried out the electric release operation | movement similarly in the locked state. It is a side view of the principal part of the state which carried out manual release operation similarly in the unlocked state. It is a side view of the principal part of the state which carried out manual release operation similarly in the locked state. It is a block diagram which shows a control circuit. It is a table | surface which shows an example of switching control of validity of the operation of the electrical operation element of a side door, and invalidity. It is a front view which shows an example of the inclination of a motor vehicle. It is a side view which shows the other example of the inclination of a motor vehicle. It is a flowchart of the release drive control of the release motor based on the inclination of the automobile.

  As shown in FIG. 1, each side door of a four-door type automobile V has a door lock device 1 for holding the side door in a closed position, and an outside handle of an external mechanical operation unit provided outside the vehicle. OH and an external electrical operation part, an inside handle IH of an internal mechanical operation part provided inside the vehicle, and an internal electrical operation part are arranged.

  In addition, a key cylinder KC for selectively switching a locking / unlocking mechanism (to be described later) of the door lock device 1 from the outside to the locked state and the unlocked state is disposed on the front side door. Although illustration is omitted, each side door may be provided with a lock knob for selectively switching the locking / unlocking mechanism between the locked state and the unlocked state from the inside of the vehicle.

  Also, in places where the driver's seat can be operated (for example, in the vicinity of the driver's seat or on the side of the side door on the side of the front driver's seat), the internal electrical operation of the side door other than the side door on the front driver's seat There are provided a cancel switch SW5 for switching the operation of the unit to be valid or invalid, and an internal locking / unlocking operation switch SW11 for simultaneously switching the locking / unlocking mechanism of all the doors from the inside of the vehicle to the locked state or the unlocked state.

  As shown in FIG. 2, the external electrical operation unit is an operation switch disposed on the front surface of the outside handle OH, or disposed on the back surface or in the vicinity thereof, and is a door lock device 1 that releases the holding of the side door. An external operation switch SW1 for operating a release mechanism (to be described later) by a release motor. Although external operation switch SW1 is not specifically limited, For example, it is comprised by a touch sensor or a proximity sensor.

  Validity and invalidity of the operation of the external operation switch SW1 are electrically controlled by a control device ECU (Electronic Control Unit). For example, an authorized user (driver) carrying a car-specific transmitter (or electronic key) SW6 approaches a predetermined area with respect to the car V, and the external receiver R1 disposed on the transmitter SW6 and the vehicle body. When the verification of the ID signal is matched in the wireless communication performed between the mobile phone and the mobile phone V and it is authenticated that the authorized user has approached the vehicle V, the operation is validated. The outside receiver R1 is configured to be able to receive the signal of the transmitter SW6 existing in a predetermined area outside the vehicle.

  As shown in FIG. 3, the internal electrical operation unit includes two operation switches disposed on a grip G inside the side door, and a first internal operation switch for operating the release mechanism by a release motor. SW2 and a second internal operation switch SW12 for detecting that the grip G is gripped are provided. The first internal operation switch SW2 and the second internal operation switch SW12 are not particularly limited. For example, the first internal operation switch SW2 and the second internal operation switch SW12 are configured by touch sensors, proximity sensors, or push switches.

  Validity and invalidity of the operation of the first internal operation switch SW2 are electrically controlled by a control device ECU (Electronic Control Unit). For example, a legitimate user (driver) carrying the transmitter SW6 is in the vehicle V, and the ID signal is verified by wireless communication performed between the transmitter SW6 and the in-vehicle receiver R2 disposed on the vehicle body. If they match and authenticate that the authorized user is in the vehicle V, the operation is validated. The in-vehicle receiver R2 is configured to be able to receive a signal from the transmitter SW6 existing in a predetermined area in the vehicle. The detection of gripping of the grip G by the second internal operation switch SW12 is used to execute the release drive of the release motor based on the operation of the first internal operation switch SW2.

  The second internal operation switch SW12 for detecting gripping of the grip G is preferably provided on the back surface of the grip G facing the inner panel IP of the side door, whereby the user can operate the second internal operation switch SW12. It is possible to detect gripping of the grip G without making it conscious. The first internal operation switch SW2 may be provided on the front surface of the grip G or may be provided on the back surface of the grip G, and is provided at an appropriate position of the grip G in consideration of operability. Can do.

  The transmitter SW6 is built in a wireless communication type portable operation switch SW10 that is also an external electric operation element carried by the user, or is configured separately from the portable operation switch SW10. The portable operation switch SW10 has an open switch portion that is operated when the release mechanism is operated by the release motor, and a lock / unlock switch portion that is operated when the locking / unlocking mechanism is switched. In addition, an open switch part is allocated for every side door, and a lock / unlock switch part is used as all the doors in common. Further, the operations of the open switch unit and the lock / unlock switch unit are valid when the ID signal of the transmitter SW6 is authenticated, and are invalid when the ID signal is not authenticated.

  4 is an external perspective view of the door lock device 1, FIG. 5 is a partially exploded perspective view of the door lock device 1, FIG. 6 is an exploded perspective view of the door lock device 1, and FIG. FIGS. 8 to 13 are explanatory diagrams of the operation of the main part. In addition, the azimuth | direction used by the following description points out the state which attached the door lock apparatus 1 to the side door.

  The door lock device 1 is mounted in the side door, and engages with the striker S on the vehicle body side to hold the side door in the closed position, and the side door is locked or unlocked. And an operation unit 3 having a locking / unlocking mechanism including mechanical elements (such as a lever and a link) that can be selectively switched to a locked state.

  For example, as shown in FIG. 7, the latch unit 2 includes, as main elements, a body 4 fixed to a rear end portion in the side door by a plurality of bolts (not shown), and accommodated in the body 4. The latch mechanism (not shown) including the latch 5 engageable with the striker S fixed to the side and the ratchet 6 engageable with the latch 5, and in the direction of releasing the engagement relationship between the ratchet 6 and the latch 5 And an open lever 7 (see, for example, FIG. 6) that can be released.

  The latch 5 is pivotally supported in the body 4 by a latch shaft 8 facing in the front-rear direction, and a full latch engaging portion 51 and a half latch engaging portion 52 with which the ratchet 6 can be engaged, and a striker provided in the body 4 It has the engaging groove 53 which can be engaged with the striker S which approachs the approach groove | channel 41. As shown in FIG.

  As shown in FIG. 7, the striker entry groove 41 of the body 4 is provided slightly higher than the substantially central portion in the up-down direction, and has a shape that opens on the vehicle inner side and extends in the vehicle outer direction. Note that reference sign “X” shown in FIG. 7 indicates a striker entry that is an entry path when the striker S enters the striker entry groove 41 and engages with the engagement groove 53 of the latch 5 when the side door is closed. Show the line.

  In addition, the latch 5 is in the open position corresponding to the open state of the side door that is not engaged with the striker S as the side door is closed (position rotated approximately 90 degrees clockwise from the position shown in FIG. 7). Is rotated counterclockwise by a predetermined angle against the biasing force of a spring (not shown), and engages with the striker S that has entered the striker entry groove 41 along the striker entry line X from the left in FIG. Full latch position (position shown in FIG. 7) corresponding to the fully closed state in which the engagement groove 53 is completely engaged with the striker S through the half latch position corresponding to the half door state where the groove 53 is slightly engaged. In addition, as the striker S moves out of the striker entry groove 41 due to the opening operation of the side door, it rotates in the opposite direction.

  The ratchet 6 is below the striker entry groove 41 and is pivotally supported in the body 4 by a ratchet shaft 9 facing in the front-rear direction, and in an engagement direction (counterclockwise in FIG. 7) by a spring (not shown). The side door is held in a fully closed state by being engaged with the full latch engaging portion 51, and being biased in the direction of engaging with either the full latch engaging portion 51 or the half latch engaging portion 52 of the latch 5. Further, the side door is held in a half door state by engaging with the half latch engaging portion 52.

  As shown in FIG. 6, the open lever 7 is pivotally supported on the front side of the body 4 so as to be coaxial with the ratchet 6 and so as to be able to rotate integrally with the ratchet 6. By rotating clockwise), the engagement relationship between the ratchet 6 and the latch 5 is released. A released portion 71 is provided at an end portion of the open lever 7 that extends toward the vehicle interior side.

  Next, the operation unit 3 will be described.

  As shown in FIG. 6, the operation unit 3 includes a first cover 10 made of a synthetic resin having a substantially L shape in plan view and fixed to the body 4 so as to cover the front surface of the body 4, and a vehicle of the first cover 10. A second cover 11 made of synthetic resin that closes the side facing inward, a waterproof side cover 12 made of synthetic resin that closes the substantially upper half of the second cover 11 from the inside of the vehicle, and a first cover 10. And a waterproof top cover 13 that covers the upper mating surface of the second cover 11 and an operation mechanism (not indicated) accommodated in the housing.

  The “inside of the housing” used in this description is an accommodation formed between the side surface of the first cover 10 that is substantially perpendicular to the front surface of the body 4 and the side surface of the second cover 11 that faces the side surface. Refers to space.

  The operation mechanism is effective for locking / unlocking motor 14 as a driving source of the locking / unlocking mechanism, locking / unlocking worm wheel 15 that can be rotated forward and reverse by driving of locking / unlocking motor 14, and door opening operation of outside handle OH. A lock lever 16 movable to an unlock position to be disabled and a lock position to be disabled, an open link 18 movable to the unlock position and the lock position together with the lock lever 16, and an inside lever 19 linked to the inside handle IH The key lever 20 connected to the key cylinder KC, the outside lever 21 linked to the outside handle OH, the release motor 22 as a drive source of the electric release mechanism, and can be rotated by driving the release motor 22. Release worm wheel 23 and release worm wheel 23 An electric release lever 24 that performs a release operation by rotation (for example, a counterclockwise rotation in FIG. 8), and a wiring that is electrically connected to the locking and unlocking motor 14, the release motor 22, and various switches are provided. And the wiring plate 25. Further, in the accommodation space between the second cover 11 and the waterproof side cover 12, a knob lever 17 linked to a lock knob for manual operation provided inside the side door is provided. When the lock knob is omitted, the knob lever 17 is also omitted.

  The locking / unlocking mechanism in this embodiment includes a locking / unlocking motor 14 as a drive source, a mechanical element locking / unlocking worm wheel 15, a lock lever 16, and an open link 18.

  The “unlocked state” used in the following description refers to a state in which the lock lever 16, the knob lever 17 and the open link 18 are in the unlocked position, and the “locked state” refers to the lock lever 16, The knob lever 17 and the open link 18 are each in a locked position. In addition, the structure of the locking / unlocking mechanism is not limited to this embodiment, and can be variously changed.

  The electric release mechanism includes a release motor 22 as a drive source, a release worm wheel 23, and an electric release lever 24.

  The locking / unlocking motor 14 is housed in a housing, and its own case (yoke) 14a is higher than the striker entry line X shown in FIG. 7, and the output shaft 14b pivotally supported by the case 14a faces downward. Are arranged as follows. Thereby, it is possible to prevent the rainwater that has entered from the striker entry groove 41 from entering the case 14 a of the locking / unlocking motor 14 as much as possible.

  The wiring plate 25 is integrally formed with a coupler 251 to which an in-vehicle battery (not shown) and an external connector (not shown) of an external power source connected to the control unit ECU are connected. Wiring for supplying electric power and outputting various signals is provided, and the case 14a of the locking / unlocking motor 14 is fixed in the housing so as to cover the case 14a from the inside of the vehicle. The wiring of the wiring plate 25 is connected to the terminals of the locking / unlocking motor 14 and the releasing motor 22 and the external connector connected to the coupler 251 so that the locking / unlocking motor 14 and the releasing motor 22 are controlled by the control unit ECU. Are electrically connected to each other. FIG. 5 omits the wiring plate 25 in order to clearly show the internal structure of the operation unit 3.

  As shown in FIG. 8, the locking / unlocking worm wheel 15 is pivotally supported in the housing by a shaft 26 facing inward and outward from the case 14 a of the locking / unlocking motor 14, and the locking / unlocking motor 14. By engaging with the worm 141 fixed to the output shaft 14b, the spring 27 (see FIG. 6) wound around the shaft 26 is resisted against the urging force based on the drive of the locking / unlocking motor 14. When the rotation of the locking / unlocking motor 14 stops from the neutral position (for example, the position shown in FIG. 8) and stops, the spring 27 returns to the neutral position again.

  The knob lever 17 is pivotally supported on the side surface of the second cover 11 by a shaft 111 provided on the second cover 11, and a connecting arm portion 171 extending downward is manually operated via a connecting member 28 constituted by a Bowden cable. By being connected to the lock knob for operation, the unlock position shown in FIG. 8 and the counterclockwise rotation from the unlock position shown in FIG. Rotate to the lock position shown. The operation of the lock knob is transmitted to the lock lever 16 and the open link 18 via the knob lever 17 as described later. When the lock knob is omitted, the connecting member 28 is also omitted.

  The waterproof side cover 12 is fixed to the outer surface of the second cover 11 after the knob lever 17 is assembled to the second cover 11, so that the outer side surface of the second cover 11 including the region where the knob lever 17 is installed. Close part to prevent rainwater from entering the housing.

  The lock lever 16 is pivotally supported in the housing by a shaft 101 provided on the inner side surface of the first cover 10 and projecting in the in-vehicle direction, and a tooth portion 161 formed at an obliquely lower front portion has a locking worm wheel 15 for locking and unlocking. The upper portion is connected to the key lever 20, and the connecting protrusion 162 formed on the diagonally front upper portion passes through the arc hole 112 provided in the second cover 11. 172. Further, the lock lever 16 is provided with an arm portion 164 having a guide wall 165 extending downward from the vicinity of the rotation center. Note that the rotation center of the shaft 101, that is, the lock lever 16, is arranged to be higher than the striker approach line X in the housing.

  Thus, the lock lever 16 rotates the key lever 20 based on the operation of the key cylinder KC, rotates the knob lever 17 based on the operation of the lock knob, and rotates the locking / unlocking worm wheel 15 based on the driving of the locking / unlocking motor 14. 8 can be rotated to the unlock position shown in FIG. 8 and the lock position shown in FIG. 9 rotated clockwise by a predetermined angle from the unlock position. Each is held elastically in the locked position. Note that when the locking / unlocking worm wheel 15 is in the neutral position, the tooth portion 161 of the lock lever 16 adopts a configuration in which the tooth portion 151 of the locking / unlocking worm wheel 15 is disengaged. The rotation of the lock lever 16 based on the operation of the lock knob and the key cylinder KC is not transmitted to the locking / unlocking worm wheel 15.

  The holding member 29 is constituted by a torsion spring, and the coil portion is supported by a columnar support portion 102 (see FIG. 6) integrally formed on the inner surface of the first cover 10, and both arm portions are connected to the lock lever 16. When the lock lever 16 is rotated from the unlock position (or the lock position) to the lock position (or the unlock position) by being installed so as to sandwich the protrusion 162, it is between the unlock position and the lock position. The urging direction is changed from the unlocking direction (or the locking direction) to the locking direction (or the unlocking direction) at the substantially intermediate position.

  The lock lever 16 is unlocked and stopped when the lock lever 16 is in contact with a rubber stopper (not shown) fixed to the inner surface of the first cover 10. .

  On the upper outer peripheral surface of the lock lever 16 is provided a cam surface 163 with which the detection part of the locking / unlocking state detection switch SW7 assembled to the wiring plate 25 contacts. The locking / unlocking state detection switch SW7 outputs a signal corresponding to the unlocked / locked state of the locking / unlocking mechanism when the detection unit relatively slides on the cam surface 163 as the lock lever 16 rotates. The output signal is transmitted to the control device ECU via the wiring of the wiring plate 25.

  The open link 18 has a connecting hole 182 on the lower rotating part 181, and a plate-like connecting part 211 provided at the inner end of the outside lever 21 is inserted into the connecting hole 182. As a result, the connecting portion 211 of the outside lever 21 is connected to the connecting portion 211 so as to be rotatable by a predetermined angle in the front-rear direction, and the connecting protrusion 183 provided on the upper portion is connected to the arm portion 164 of the lock lever 16 as described later. Accordingly, in conjunction with the unlock position of the lock lever 16 and the movement to the lock position, the unlock position (the position shown in FIG. 8) around the connecting portion 211 of the outside lever 21 and the counterclockwise direction from the unlock position. It rotates to the lock position (position shown in FIG. 9) rotated by a predetermined angle.

  Further, the open link 18 is provided with a release portion 184 that is substantially at the center in the vertical direction and that can come into contact with the released portion 71 of the open lever 7 from below when in the unlock position shown in FIG. Provided. Further, a torsion spring 36 is installed on the rotating portion 181 of the open link 18.

  The torsion spring 36 is unlocked with respect to the open link 18 around the connecting portion 211 of the outside lever 21 by being hooked on the open link 18 at one end and the connecting portion 211 of the outside lever 21 at the other end. A biasing force in the direction (clockwise in FIG. 8) is always applied. The urging force of the torsion spring 36 is set to be smaller than the holding force that elastically holds the lock lever 16 of the holding member 29 in the locked position.

  The connecting protrusion 183 of the open link 18 is slidable in the vertical direction with respect to the arm portion 164 of the lock lever 16 and is responsive to rotation of the lock lever 16 in the locking direction (counterclockwise in FIG. 8). Only the arm 164 of the lock lever 16 is connected to the guide wall 165 so as to be able to contact the guide wall 165.

  Thus, in the unlocked state shown in FIG. 8, when the lock lever 16 rotates to the lock position, the open link 18 has the guide wall 165 of the lock lever 16 against the connecting projection 183 of the open link 18. By abutting, it is rotated from the unlock position to the lock position shown in FIG. Further, in the locked state shown in FIG. 9, when the lock lever 16 rotates to the unlock position, the open link 18 does not depend on the mutual contact relationship between the guide wall 165 and the connecting projection 183. The urging force of the torsion spring 36 follows the rotation of the lock lever 16 and rotates from the lock position to the unlock position shown in FIG.

  In the locked state shown in FIG. 9, a biasing force in the unlocking direction (clockwise) of the torsion spring 36 is acting on the lock lever 16, but the biasing force of the torsion spring 36 is the holding member 29. Therefore, the lock lever 16 and the open link 18 are not rotated to the unlock position by the urging force of the torsion spring 36.

  The outside lever 21 is pivotally supported on the lower portion of the front surface of the body 4 by a shaft 31 facing in the front-rear direction so as to be rotatable in the vertical direction, and the connecting portion 211 inside the vehicle is connected to the open link 18 as described above. A connecting portion 212 provided at an end portion on the outer side of the vehicle is connected to the outside handle OH via a connecting member (not shown) in the vertical direction, so that a spring (not shown) is operated based on the door opening operation of the outside handle OH. It is rotated by a predetermined angle in the release direction (counterclockwise in FIG. 6) against the urging force (not shown), and the open link 18 is released upward by the rotation.

  The release motor 22 is in the housing, so that its own case (yoke) 22a is below the striker entry line X, and the output shaft 22b pivotally supported by the case 22a faces obliquely downward. Be placed.

  Since the release motor 22 is arranged below the striker entry line X, there is a possibility that rainwater that has entered from the striker entry groove 41 may adhere to the release motor 22. Since the shaft 22b is disposed so as to face rearward and downward, rainwater intrusion into the case 22a can be minimized.

  The release worm wheel 23 has a disk shape and is pivotally supported in the housing by a shaft 39 facing inward and outward of the vehicle, and fixed to an output shaft 22b pivotally supported by the case 22a of the release motor 22. The set position (for example, the position shown in FIG. 8) against the urging force of the spring 35 (see FIG. 6) wound around the shaft 39 based on the drive of the release motor 22. ) To the position shown in FIG. 10, and when the release motor 22 stops rotating, it returns from the position rotated by the urging force of the spring 35 to the set position again. Further, the release worm wheel 23 is provided with an involute curved cam surface 231 in which the distance from the rotation center to the outer peripheral surface is gradually increased, for example, counterclockwise in FIG.

  The electric release lever 24 is in the housing, and a central portion in the front-rear direction is pivotally supported by the shaft 103. The electric release lever 24 extends forward, and a tip portion thereof is slidable on the cam surface 231 of the release worm wheel 23. The arm portion 241 has a second arm portion 242 that extends rearward and whose tip portion can abut against the released portion 71 of the open lever 7 from below.

  For example, as shown in FIG. 8, when the release worm wheel 23 is in the set position, the distal end portion of the first arm portion 241 of the electric release lever 24 contacts the small diameter portion of the cam surface 231 of the release worm wheel 23. Thus, the electric release lever 24 is held at the set position shown in FIG. In this state, when the release worm wheel 23 is rotated by a predetermined angle clockwise from the set position shown in FIG. 8 to the release position shown in FIG. The distal end portion of the first arm portion 241 slides relative to the cam surface 231 and is displaced to the large diameter portion of the cam surface 231, so that the electric release lever 24 rotates to the release operation position shown in FIG. Then, the tip of the second arm portion 242 comes into contact with the released portion 71 of the open lever 7 from below to release the open lever 7 and release the engagement relationship between the latch 5 and the ratchet 6. The side door can be opened.

  The inside lever 19 is a circle provided in the second cover 11 in the housing. The inside lever 19 is pivotally supported by a shaft 103 coaxial with the electric release lever 24 at a slightly lower portion in the center in the vertical direction. The first arm portion 191 that protrudes outward from the arc-shaped opening 113 (see FIG. 5), the second arm portion 192 that extends obliquely rearward and downward, and the upper end portion of the first arm portion 191 are connected to the knob lever 17. An unlocking action portion 193 that can abut against a lower portion 173 of the arm portion 171, and the upper portion of the first arm portion 191 is connected to the side door via a connecting member 33 constituted by a Bowden cable or the like. By being connected to the inside handle IH, the biasing force of the spring 34 wound around the shaft 103 based on the door opening operation of the inside handle IH. Anti to, for example, from the set position shown in FIG. 8 counterclockwise rotated by a predetermined angle, to the releasing operation, as shown in FIG.

  An abutting portion 192a that can abut against the rotating portion 181 of the open link 18 from below when the inside lever 19 is released is formed at the distal end portion of the second arm portion 192.

  The connecting member 33 passes between the case 14a of the locking / unlocking motor 14 disposed in the upper part of the housing and the case 22a of the release motor 22 disposed in the lower part, so that the first lever of the inside lever 19 is passed. It is connected to the upper part of the arm part 191. Thereby, since the connection member 33 does not overlap with the case 14a, 22a having a large thickness in the in-vehicle direction in the in-vehicle direction, the thickness of the housing in the in-vehicle direction can be reduced.

  Next, an electric circuit including the control device ECU according to the present embodiment will be described.

  As shown in FIG. 14, the control unit ECU is configured as an integrated one-chip CPU together with a ROM storing a control program and a RAM functioning as a work area of the CPU. The control process is executed. In addition, the control device ECU includes an authentication unit that performs verification of an ID signal for wireless communication performed between the transmitter SW6 and each of the receivers R1 and R2. The authentication unit may be separated from the control device ECU.

  The input ports of the control device ECU include the receivers R1, R2, the external operation switch SW1 of each side door, the first internal operation switch SW2 of each side door, the second internal operation switch SW12 of each side door, A cancel switch SW5, a locking / unlocking state detection switch SW7, a vehicle speed sensor SW9 for detecting the vehicle speed, an internal locking / unlocking operation switch SW11, and a tilt sensor SW13 for detecting the tilt of the vehicle V are electrically connected to each other. Each signal is input after being connected. Further, the locking / unlocking motor 14 and the release motor 22 are electrically connected to the output ports, respectively.

  The cancel switch SW5 is operated when switching to an unset state in which the operation of the first internal operation switch SW2 provided on a side door other than the side door on the front driver's seat side is enabled or a cancel state in which it is disabled. The control unit ECU receives the cancel signal of the cancel switch SW5, holds it in an unset state that enables the operation of the first internal operation switch SW2, and receives the cancel signal of the cancel switch SW5. (1) The operation state of the internal operation switch SW2 is held in a cancel state that invalidates the operation.

  The unlocking / unlocking state detection switch SW7 detects the state of the locking / unlocking mechanism, and transmits the unlock signal by detecting the unlocked state and the lock signal by detecting the locked state, respectively. To do.

  The vehicle speed sensor SW9 detects the stop or travel of the automobile. When the vehicle speed sensor SW9 detects a stop or a predetermined speed or less, it detects a stop signal, or detects a stop speed or more. Transmits a running signal to the control unit ECU.

  The internal locking / unlocking operation switch SW11 is provided in the vehicle, and transmits an unlock signal to the control device ECU by an unlock operation and a lock signal by the lock operation. When receiving the unlock signal, the control unit ECU performs the unlock driving control of the locking / unlocking motor 14 to switch the locking / unlocking mechanism to the unlocked state, and when receiving the lock signal, In order to switch the lock mechanism to the locked state, lock drive control of the locking / unlocking motor 14 is performed. Electric power is supplied to the locking / unlocking motor 14 from, for example, a battery power source mounted in an automobile.

  The inclination sensor SW13 can detect the roll angle (rotation angle around the axis extending in the front-rear direction) and the pitch angle (rotation angle around the axis extending in the left-right direction) and the detected roll angle and pitch with respect to the vertical axis. Signals corresponding to the corners are respectively transmitted to the control device ECU. The inclination sensor SW13 can be constituted by a triaxial acceleration sensor, for example. When a triaxial acceleration sensor is mounted on the vehicle V for the purpose of collision detection, the triaxial acceleration sensor may be used as the tilt sensor SW13.

  The control unit ECU receives the signals from the transmitter SW6, the cancel switch SW5, the locking / unlocking state detection switch SW7, the vehicle speed sensor SW9, and the inclination sensor SW13, and according to the reception status at that time, The external operation switch SW1, the first internal operation switch SW2, and the portable operation switch SW10 perform switching control for enabling or disabling the door opening operation, and the external operation switch SW1 that is enabled and the first internal switch By receiving the door opening operation signal (release driving instruction) of the operation switch SW2 and the portable operation switch SW10, release drive control of the side door release motor 22 that has been operated to open the door is performed.

  The switching control of the control device ECU is as shown in FIG. In the column of “transmitter SW6” shown in FIG. 15, “authentication (outside the vehicle)” indicates that the user carrying the transmitter SW6 is within a predetermined area outside the vehicle, and the receiver R1 and the transmitter SW6 are connected to the vehicle. The result of the ID signal verification performed between the transmitter SW6 and the transmitter SW6 is authenticated, and “non-authentication” means that the transmitter SW6 does not exist in a predetermined area outside the vehicle and in the vehicle, The transmitter SW6 is not authenticated, and “authentication (in the vehicle)” is the state in which the transmitter SW6 is in the vehicle, that is, the user gets into the vehicle, and the in-vehicle receiver R2 and the transmitter SW6 This is a case where the result of collation of the ID signals performed in between matches the transmitter SW6.

  In the “authentication (outside of vehicle)” state of the transmitter SW6, the operation of the external operation switch SW1, the portable operation switch SW10, and the first internal operation switch SW2 of the side door on the front driver's seat side is stopped by the vehicle speed sensor SW9. Is detected, regardless of the detection states of the cancel switch SW5 and the unlocking / unlocking state detection switch SW7. On the other hand, when the cancel switch SW5 holds the cancel state, the vehicle speed sensor SW9 outputs a stop signal when the front passenger side side door and the rear side door first internal operation switch SW2 are operated. Is also invalid.

  In the “non-authenticated” state of the transmitter SW6, when the cancel switch SW5 is held in the unset state, the vehicle speed sensor SW9 outputs a stop signal when the first internal operation switch SW2 of each side door is operated. If it is, it is valid. All other operations are invalid. In this way, even when a legitimate user is not in the vehicle, the passenger can quickly open the side door by operating the first internal operation switch SW2, and prevents the passenger from being trapped. can do. From the viewpoint of security, all operations including the operation of the first internal operation switch SW2 of each side door when the cancel switch SW5 is held in the unset state may be invalidated.

  In the “authentication (in-vehicle)” state of the transmitter SW6, the operation of the external operation switch SW1 of each side door is valid when the unlocking / unlocking state detection switch SW7 detects the unlocked state, but the lock Invalid if a state is detected. By doing in this way, when a user exists in a vehicle, there is no possibility that a door will be unexpectedly opened from the outside by an outsider. Further, the operation of the first internal operation switch SW2 on the side door on the front driver's seat side is effective regardless of the detection state of the cancel switch SW5 and the unlocking / unlocking state detection switch SW7, but the side door and rear side on the front passenger seat side The operation of the first internal operation switch SW2 of the door is valid if the unlocking / unlocking state detection switch SW7 detects the unlocked state and is held in the unset state by the operation of the cancel switch SW5, and the unlocking / unlocking state detecting switch SW7 Is invalid when the lock state is detected or when the cancel switch SW5 holds the cancel state.

  When the control device ECU receives a door opening operation signal of the external operation switch SW1 and the portable operation switch SW10 that are enabled, the control device ECU executes the release drive of the motor 22 for releasing the side door that has been opened. To do. Further, when the control device ECU receives a door opening operation signal from the first internal operation switch SW2 that is enabled, the control device ECU is operated to open the door based on the inclination of the vehicle V detected by the inclination sensor SW13. The success or failure of opening the side door due to its own weight and the presence or absence of gripping of the grip G of the side door that has been opened by the door detected by the second internal operation switch SW12 are determined. The release motor 22 is driven to release. Electric power is supplied to the release motor 22 from, for example, a battery power source mounted in an automobile.

  FIGS. 16 and 17 show an example of determining success or failure of opening due to the weight of the side door based on the inclination of the automobile V. FIG.

  FIG. 16 shows a case where the automobile V rolls around the axis extending in the front-rear direction so that the side portion on the driver's seat side of the vehicle is directed downward. In this case, the side door and the rear on the front driver seat side are shown. On the side door on the driver's seat side, the weight of each side door acts in the opening direction. When the direction in which the side of the driver's side of the vehicle faces downward is the positive direction of rolling, the control unit ECU determines that the roll angle θ detected by the tilt sensor SW13 is, for example, 0 ° <θ. It is determined that the side door and the side door on the rear driver's seat side are opened due to their own weight. In addition, when 0 °> θ, the control device ECU determines that the opening of the side door on the front passenger seat side and the side door on the rear passenger seat side is opened by its own weight.

  FIG. 17 shows a case where the automobile V is pitched around an axis extending in the left-right direction so that the front portion of the vehicle is directed downward. In this case, all the side doors have their own weights. Acts in the opening direction. With the direction in which the front of the vehicle faces downward as the positive direction of pitching, the control unit ECU opens all side doors under its own weight when the pitch angle φ detected by the inclination sensor SW13 is, for example, 0 ° <φ. It is determined to be successful.

  The release drive control of the control unit ECU when a door opening operation signal from the first internal operation switch SW2 that is enabled is received is as shown in FIG.

  When the control device ECU receives a door opening operation signal from the first internal operation switch SW2 (step S1), the weight of the side door subjected to the door opening operation based on the inclination of the vehicle V detected by the inclination sensor SW13. The success or failure of opening is determined (step S2).

  When the determination result of opening due to its own weight is a successful determination (step S2-Yes), the control unit ECU holds the grip G of the side door that has been opened based on the output signal of the second internal operation switch SW12. It is determined whether or not (step S3).

  When the grip G is gripped (step S3-Yes), the control device ECU executes the release drive of the side door release motor 22 that has been operated to open the door (step S4). On the other hand, when the grip G is not gripped (step S3-No), the control device ECU does not perform the release drive of the side door release motor 22 that is operated to open the door (step S5).

  When the determination result of opening due to its own weight is NO (step S2-No), the control device ECU determines whether the grip G is gripped based on the output signal of the second internal operation switch SW12. Instead, the release drive of the release motor 22 for the side door that has been operated to open the door is executed (step S6).

  As described above, when the determination result of the opening due to the weight of the side door that has been operated to open the door is a successful determination, the release drive of the release motor 22 is executed only when the grip G is gripped, and the side door is opened. By making the door openable, the occupant holding the grip G can support the weight of the side door acting in the opening direction and external forces such as wind, and the side door will inadvertently open to the fully open state. It can be avoided.

  Preferably, the control device ECU determines the release drive instruction and releases the release motor 22 when the door opening operation signal (release drive instruction) from the first internal operation switch SW2 is continuously received for a predetermined time. To do. Thereby, it is possible to suppress the release motor 22 from being driven to release due to an erroneous operation of the first internal operation switch SW2.

  Next, main operations of the door lock device 1 will be described.

  In the state described below, the side door is in the closed state, the control unit ECU authenticates the ID signal of the transmitter SW6, the vehicle speed sensor SW9 outputs a stop signal, and the cancel switch SW5 is operated to cancel the state. It is assumed that the operations of the external operation switch SW1, the first internal operation switch SW2, and the portable operation switch SW10 are all valid.

<When the unlocking mechanism is unlocked and the outside handle OH is operated to open the door>
In the unlocked state of the locking / unlocking mechanism shown in FIG. 8, when the outside handle OH is operated to open the door, the door opening operation is transmitted to the outside lever 21 via a connecting member (not shown), The lever 21 performs a release operation. As a result, the open link 18 connected to the connecting portion 211 of the outside lever 21 is released upward from the set position shown in FIG. 8, and the release portion 184 becomes the released portion 71 of the open lever 7 by the release operation. Abutting from below, the open lever 7 is released. Thereby, the ratchet 6 can be disengaged from the full latch engaging portion 51 of the latch 5 to open the side door. Thereby, if the locking / unlocking mechanism is in the unlocked state, the side door can be opened by the door opening operation by the mechanical operation of the outside handle OH regardless of whether the operation of the external operation switch SW1 is valid / invalid. it can.

<When the inside handle IH is operated while the unlocking mechanism is unlocked>
In the unlocked state of the locking / unlocking mechanism shown in FIG. 8, when the inside handle IH is operated to open the door, the opening operation is transmitted to the inside lever 19 via the connecting member 33. The inside lever 19 is released to rotate a predetermined angle counterclockwise about the shaft 103 coaxial with the electric release lever 24, and as shown in FIG. 12, the contact portion 192a of the second arm portion 192 is opened. The open link 18 is released upwardly by coming into contact with the rotating portion 181 of the link 18 from below. In the open link 18, the release portion 184 comes into contact with the released portion 71 of the open lever 7 from below by the release operation, and the open lever 7 is rotated in the release direction to release the engagement of the latch mechanism, thereby opening the side door. Can be opened.

<When the outside handle OH is operated when the locking / unlocking mechanism is locked>
When the outside handle OH is operated to open the door in the locked state shown in FIG. 9, the operation is transmitted to the outside lever 21 and the open link 18 is released upward from the set position shown in FIG. However, the release portion 184 of the open link 18 moves across the front of the released portion 71 of the open lever 7 and is in an idle state where it does not come into contact with the released portion 91. Cannot be opened, and the side door cannot be opened.

<When the inside handle IH is operated while the locking / unlocking mechanism is in the locked state>
When the inside handle IH is operated to open the door in the locked state shown in FIG. 9, the inside lever 19 is released from the set position shown in FIG. 9 against the urging force of the spring 34 (counterclockwise in FIG. 9). As shown in FIG. 13, the unlocking portion 193 of the inside lever 19 contacts the part 173 of the knob lever 17, so that the lock lever 16 and the open link 18 are moved from the locked position to the unlocked position. Move to.

  In this case, the open link 18 is unlocked together with the lock lever 16 in combination with the release operation of the inside lever 19 and the upward movement in an idling state across the front of the released portion 71 of the open lever 7. 13, the open link 18 is unlocked because a part of the open link 18 abuts the part of the open lever 7 from a direction in which the open lever 7 cannot rotate, as shown in FIG. Stop before the position. Then, once the inside handle IH is returned to the non-operation position, the open link 18 moves downward, and a part of the open link 18 is disengaged from a part of the open lever 7, so that the unloading force is applied by the torsion spring 36. Move to the locked position and move to the unlocked position. As a result, the locking / unlocking mechanism is completely switched to the unlocked state. After that, by operating the inside handle IH again to open the door, the engagement of the latch mechanism can be released and the side door can be opened.

  By configuring the locking / unlocking mechanism to be switched from the locked state to the unlocked state by opening the door of the inside handle IH, for example, the power of the battery of the automobile V is insufficient and the locking / unlocking motor 14 and the release motor 22 are driven. If this is not possible, the side door can be opened by the door opening operation of the inside handle IH even when the locking / unlocking mechanism is in the locked state, and the occupant can be prevented from being trapped.

<When the unlocking mechanism is in the unlocked state or the locked state, and the open switch portion of the external operation switch SW1 or the portable operation switch SW10 is operated>
When the control device ECU receives the door opening operation signal of either the external operation switch SW1 or the portable operation switch SW10, the control device ECU moves the door opening worm wheel 23 from the set position to the release direction (for example, a clock in FIG. 8). The release motor 22 is controlled to be driven to rotate in the direction). As a result, the electric release lever 24 moves the cam of the release worm wheel 23 with the tip of the first arm portion 241 as the release worm wheel 23 rotates in the release direction regardless of the state of the locking / unlocking mechanism. The surface 231 is slid to rotate from the set position to the release operation position (the position shown in FIG. 10 in the unlocked state and FIG. 11 in the locked state), and the tip of the second arm portion 242 is covered by the open lever 7. The release lever 71 is brought into contact with the release portion 71 from below, and the open lever 7 is released. Thereby, the engagement state of a latch mechanism is cancelled | released and the door by which door opening operation was carried out can be opened.

  In this operation, the electric release lever 24 directly releases the open lever 7 regardless of the state of the locking / unlocking mechanism. Therefore, even when the locking / unlocking mechanism is in the locked state, the external operation switch SW1 or With one door opening operation of the portable operation switch SW10, the door opened by the release drive of the release motor 22 can be quickly opened.

<When the first internal operation switch SW2 is operated when the locking / unlocking mechanism is in the unlocked state or the locked state>
When the control device ECU receives the door opening operation signal of the first internal operation switch SW2, the control device ECU controls the release of the motor 22 for releasing the door that has been opened. In the release drive control of the release motor 22, as described above, the success or failure of the side door that has been opened based on the inclination of the vehicle V detected by the inclination sensor SW13 due to its own weight, and the second internal operation switch SW12. Whether or not the grip G of the side door that has been operated to open the door is detected is detected, and the determination result of opening by the dead weight of the side door is a successful determination and the grip G is gripped, or the side When the determination result of opening due to the weight of the door is negative, the release drive of the release motor 22 for the side door that has been operated to open the door is executed. Thereby, the electric release lever 24 is released regardless of the state of the locking / unlocking mechanism, and the door that has been operated to open the door can be opened by one opening operation of the first internal operation switch SW2.

<When the door opening operation of the external operation switch SW1 or the portable operation switch SW10 and the unlocking operation of the internal locking / unlocking operation switch SW11 are performed substantially simultaneously when the locking / unlocking mechanism is in the locked state>
The control unit ECU receives the door opening operation signal of either the external operation switch SW1 or the portable operation switch SW10, thereby controlling the release of the door release motor 22 that has been operated to open the door, and the internal locking / unlocking operation. By receiving the unlock operation signal of the switch SW11, the unlock drive control of the locking / unlocking motor 14 is performed.

  Thus, the electric release lever 24 is released from the set position shown in FIG. 9 regardless of the state of the locking / unlocking mechanism. On the other hand, the locking / unlocking mechanism performs a switching operation from the locked state shown in FIG. 9 to the unlocked state by driving the locking / unlocking motor 14 substantially simultaneously with the release operation of the electric release lever 24. As a result, as shown in FIG. 10, the electric release lever 24 directly releases the open lever 7, and the locking / unlocking mechanism is switched from the locked state to the unlocked state without contacting the open lever 7. In this case, even if the release operation of the electric release lever 24 and the switching operation of the locking / unlocking mechanism from the locked state to the unlocked state overlap each other, a part of the open link 18 of the locking / unlocking mechanism is open to the open lever 7. Since the so-called panic phenomenon that the open link 18 stops once before the unlocking position is brought into contact with the lever 7 from a non-rotatable direction, the door of the external operation switch SW1 or the portable operation switch SW10 is opened once. With the operation, the door can be opened quickly, and the locking / unlocking mechanism can be reliably switched to the unlocked state.

Although one embodiment of the present invention has been described above, the following various modifications and changes, or combinations thereof, can be made to the above embodiment within the scope not departing from the gist of the present invention. It is.
(1) With the door opening / closing device using a motor or the like as a drive source, the door is opened by an electric operation element such as the first internal operation switch SW2, and the side door is released from the engagement with the striker S of the latch mechanism. Automatically opens the door.
(2) When the vehicle speed sensor SW9 detects traveling from the stopped state, the locking / unlocking motors 14 of all the side door locking / unlocking mechanisms are controlled to be locked, and the locking / unlocking mechanisms are switched to the locked state.
(3) Even when the authentication unit is not authenticating the ID signal, the door opening operation of the external operation switch SW1 of the unlocked side door is enabled and the door is opened by the door opening operation. To be able to.

1 Door lock device 2 Latch unit 3 Operation unit 4 Body 5 Latch (latch mechanism)
6 Ratchet (latch mechanism)
7 Open lever 8 Latch shaft 9 Ratchet shaft 10 First cover 11 Second cover 12 Waterproof side cover 13 Waterproof top cover 14 Locking / unlocking motor 14a Case 14b Output shaft 15 Locking / unlocking worm wheel (locking / unlocking mechanism)
16 Lock lever (locking / unlocking mechanism)
17 Knob lever 18 Open link (locking / unlocking mechanism)
19 Inside lever 20 Key lever 21 Outside lever 22 Release motor 22a Case 22b Output shaft 23 Release worm wheel (release mechanism)
24 Electric release lever (release mechanism)
25 Wiring plate 26 Shaft 27 Spring 28 Connecting member 29 Holding member 31 Shaft 33 Connecting member 34 Spring 35 Spring 36 Torsion spring 39 Shaft 41 Striker entry groove 51 Full latch engaging part 52 Half latch engaging part 53 Engaging groove 71 Release part 101 Shaft 102 Supporting portion 103, 111 Shaft 112 Arc hole 113 Opening 141 Worm 151 Tooth portion 161 Tooth portion 162 Connecting projection 163 Cam surface 164 Arm portion 165 Guide wall 171 Connecting arm portion 172 Connecting hole 173 Part 181 Rotating portion 182 Connection hole 183 Connection protrusion 184 Release part 191, 191A First arm part 192 Second arm part 192a Contact part 193 Unlocking action part 211, 212 Connection part 221 Warm 231 Cam surface 241 First arm part 242 Second arm part 251 Coupler EC Controller G grip IH inside handle (internal mechanical operating portion)
IP inner panel KC Key cylinder OH Outside handle R1 Outside receiver R2 In-car receiver S Striker SW1 External operation switch SW2 First internal operation switch (first operation element)
SW5 Cancel switch SW6 Transmitter SW7 Locking / unlocking state detection switch SW9 Vehicle speed sensor SW10 Portable operation switch SW11 Internal locking / unlocking operation switch SW12 Second internal operation switch (second operation element)
SW13 Tilt sensor (Tilt detector)
X Strike approach line V Car θ Roll angle φ Pitch angle

Claims (8)

A door lock device having a latch mechanism that engages with the striker and holds the vehicle door, and a release mechanism that releases the engagement of the latch mechanism with the striker by a release drive of a release motor as a drive source;
An internal electrical operation section provided on a grip inside the vehicle door;
A control unit that releases and drives the release motor in response to an operation on the internal electrical operation unit;
With
The internal electrical operation unit includes a first operation element that instructs the control unit to release the release motor, and a second operation element that detects gripping of the grip by an occupant. The door lock system according to claim 1,
The second operating element is a door lock system provided on a back surface of the grip facing an inner panel of the vehicle door. The door lock system according to claim 1,
Further comprising a tilt detector for detecting the tilt of the vehicle;
When the control unit receives a release drive instruction from the first operation element, the control unit determines whether or not the vehicle door is opened by its own weight based on the vehicle inclination detected by the inclination detection unit, and the determination result When the determination is successful, the door lock system that releases and drives the release motor only when the grip of the grip is detected by the second operation element. The door lock system according to claim 3,
When the determination result is NO, the control unit releases the electric motor for release regardless of whether the grip of the grip is detected by the second operating element. The door lock system according to claim 3 or 4,
When the control unit receives the release drive instruction from the first operating element continuously for a predetermined time, the control unit determines the release drive instruction and releases the release motor. The door lock system according to any one of claims 1 to 5,
The door lock device further includes a locking / unlocking mechanism that can be selectively switched between an unlocked state in which the engagement of the latch mechanism with the striker can be released and a locked state in which the latch mechanism cannot be released. The door lock system according to claim 6,
The door lock system, wherein the locking / unlocking mechanism is switchable from the locked state to the unlocked state in accordance with an operation of an inside handle inside the vehicle door. The door lock system according to any one of claims 1 to 7,
A door lock system further comprising a door opening and closing device that automatically opens the vehicle door in a state where the engagement of the latch mechanism with the striker is released.

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