Door locking system

Abstract

A vehicle door locking system that prevents inconsistency in the state of double locking mechanisms of respective doors from occurring unexpectedly. The vehicle door locking system is provided with a plurality of door locking devices provided in a plurality of doors of a vehicle and a control device. The plurality of door locking devices each include a latch mechanism, a lock mechanism, a double locking mechanism, a motor, and a detector. The double locking mechanism alternately switches between a double locking set state and a double locking set cancel state by driving of the motor in one direction. When switching to the double locking set cancel state is required, the control device drives and controls the motor of the door locking device in which the state of the double locking mechanism detected by the detector is in the double locking set state in one direction, and does not drive and control the motor of the door locking device in which the state of the double locking mechanism detected by the detector is in the double locking set cancel state in one direction.

Description

Technical Field

[0001] This specification discloses a door locking system. Background Technology

[0002] Previously, solutions with a dual locking mechanism driven by a motor have been proposed as such door locking systems (for example, see Patent Document 1).

[0003] Patent documents

[0004] Patent Document 1: Japanese Patent Application Publication No. 2000-45592

[0005] The technical problem that the invention aims to solve

[0006] Imagine a vehicle door locking system in which each of the vehicle's multiple doors is equipped with a door locking device including a dual-locking mechanism. This dual-locking mechanism is configured to alternately switch the setting and disengagement of the dual lock whenever a motor is driven in one direction. In such a system, typically, when dual locking is required, all door locking devices are simultaneously set to dual lock; when dual locking is required to be disengaged, all door locking devices are disengaged. However, in such a system, inconsistencies in the dual-locking states of the doors may occur. For example, a door locking device on a portion of the vehicle's doors (the driver's side door) may have an emergency disengagement function via a key cylinder. In this case, even if the motors of all door locking devices are driven simultaneously in one direction for the normal setting or disengagement of dual locks, it is impossible to ensure that the dual-locking state of the door being disengaged in the emergency is consistent with that of the other doors. Summary of the Invention

[0007] The main objective of this invention is to prevent accidental inconsistencies in the state of the dual locking mechanisms of each door in a door locking system with multiple doors that includes a door locking device with a dual locking mechanism.

[0008] Techniques for solving problems

[0009] To achieve the above-mentioned main objectives, the present invention employs the following technical means.

[0010] The first door locking system of the present invention includes: a plurality of door locking devices disposed on a plurality of doors of a vehicle; and a control device for controlling the plurality of door locking devices, wherein each of the plurality of door locking devices includes: a latching mechanism that selectively forms a latched state that holds a corresponding door in a closed state and a latch-released state that allows the corresponding door to be opened; a locking mechanism that selectively forms a locked state that prevents the latching mechanism from switching to the latch-released state and an unlocked state that allows the latching mechanism to switch to the latch-released state; and a dual locking mechanism that selectively forms a dual locking setting state that prevents the locking mechanism from switching to the unlocked state and a dual locking setting state that allows the locking mechanism to switch to the unlocked state. The system includes: a lock setting release state; a motor that drives the dual locking mechanism; and a detector that detects the state of the dual locking mechanism, which alternately switches between the dual locking setting state and the dual locking setting release state by driving the motor in one direction. When a switch to the dual locking setting release state is required, the control device drives the motor of the door locking device whose dual locking mechanism is in the dual locking setting state (detected by the detector) in the one direction, and does not drive the motor of the door locking device whose dual locking mechanism is in the dual locking setting release state (detected by the detector) in the one direction.

[0011] In the first door locking system of this invention, even if a switch to the double-lock setting release state is required when the double-locking states of some doors differ from those of other doors, the state of the double-locking mechanisms of all doors can be unified to the double-lock setting release state. As a result, inconsistencies in the states of the double-locking mechanisms of each door can be prevented.

[0012] In the second door locking system of the present invention, there are: a plurality of door locking devices disposed on a plurality of doors of a vehicle; and a control device for controlling the plurality of door locking devices, each of the plurality of door locking devices comprising: a latching mechanism that selectively forms a latched state that holds a corresponding door in a closed state and a latch-released state that allows the corresponding door to open; a locking mechanism that selectively forms a locked state that prevents the latching mechanism from switching to the latch-released state and an unlocked state that allows the latching mechanism to switch to the latch-released state; and a dual locking mechanism that selectively forms a dual locking setting state that prevents the locking mechanism from switching to the unlocked state and an unlocked state that allows the locking mechanism to switch to the unlocked state. The system includes: a dual-lock setting release state; a motor that drives the dual-locking mechanism; and a detector that detects the state of the dual-locking mechanism. The dual-locking mechanism alternately switches between the dual-lock setting state and the dual-lock setting release state by driving the motor in one direction. When a switch to the dual-lock setting state is required, the control device drives the motor of the door locking device whose dual-locking mechanism is in the dual-lock setting release state (detected by the detector) in the one direction, and does not drive the motor of the door locking device whose dual-locking mechanism is in the dual-lock setting state (detected by the detector) in the one direction.

[0013] In the second door locking system of this invention, even when a switch to the dual-lock setting state is required when the dual-locking states of some doors differ from those of other doors, the dual-locking mechanisms of all doors can be unified to the dual-lock setting state. As a result, unexpected inconsistencies in the dual-locking mechanisms of each door can be prevented. Attached Figure Description

[0014] Figure 1 This is a schematic structural diagram of a vehicle equipped with the door locking system of the present invention.

[0015] Figure 2 This is a schematic diagram of the door locking device in the unlocked state.

[0016] Figure 3 This is a schematic diagram of the door locking device in the unlocked state.

[0017] Figure 4 This is a schematic diagram of the door locking device when it is in the locked state and the double-lock setting is released.

[0018] Figure 5 This is a schematic diagram of the door locking device when it is in the locked state and the double-lock setting is released.

[0019] Figure 6 This is a schematic diagram of the door locking device in the dual-lock setting state.

[0020] Figure 7 This is a schematic diagram of the door locking device in the dual-lock setting state.

[0021] Figure 8 This is a schematic diagram of the door locking device when the inner door handle is operated from the unlocked state.

[0022] Figure 9 This is a schematic diagram of the door locking device when the inner door handle is operated from the unlocked state.

[0023] Figure 10 This is a schematic diagram of the door locking device when the knocking cam mechanism is in operation.

[0024] Figure 11 This is a schematic diagram of the door locking device when the knocking cam mechanism is in operation.

[0025] Figure 12 This is a schematic diagram of the door locking device when it is switched from a double-lock setting state to a latch-release state via motor drive.

[0026] Figure 13 This is a schematic diagram of the door locking device when it is switched from a double-lock setting state to a latch-release state via motor drive.

[0027] Figure 14 This is a control block diagram of the car door locking device.

[0028] Figure 15 This is a flowchart illustrating an example of a dual-lock control application procedure.

[0029] Figure 16 This is a flowchart illustrating an example of a dual-lock unlock control procedure.

[0030] Figure 17 This is a flowchart illustrating an example of a dual-lock unlock control procedure.

[0031] Figure 18 This is a control block diagram of a door locking device in another embodiment.

[0032] Figure 19 This is a control block diagram of a door locking device in another embodiment.

[0033] Figure 20 This is a control block diagram of a door locking device in another embodiment.

[0034] Symbol Explanation

[0035] 10 Door locking device; 20 Latch mechanism; 40 Locking mechanism; 50 Double locking mechanism; 61 First motor; 72 Second motor; 80 Control device; 112A, 112B, 112C, 112D, 212A, 212B, 312 Door locking control device (control device). Detailed Implementation

[0036] Next, the methods for carrying out the present invention will be described with reference to the accompanying drawings.

[0037] Figure 1 This is a schematic structural diagram of a vehicle equipped with the door locking system 10 of the present invention. Figure 2 and Figure 3 This is a schematic diagram of the door locking device 11A in the unlocked state. Figure 4 and Figure 5 This is a schematic structural diagram of the door locking device 11A when it is in the locked state and the double locking setting is released. Figure 6 and Figure 7 This is a schematic structural diagram of the door locking device 11A in the dual-lock setting state. Figure 8 and Figure 9 This is a schematic diagram of the door locking device 11A when the inner door handle 6 is operated from the unlocked state. Figure 10 and Figure 11 This is a schematic structural diagram of the door locking device 11A when the knocking cam mechanism is in operation. Figure 12 and Figure 13 This is a schematic structural diagram of the door locking device 11A when it switches from the dual-lock setting state to the latch release state via the drive of the second motor 71. Figure 14 This is a control block diagram of the door locking device 11A.

[0038] like Figure 1 As shown, in this embodiment, the vehicle has doors 1A, 1B, 1C, and 1D on the left and right sides of the driver's seat, the front passenger seat, and the rear seats. Door 1A is the driver's side door (FrRH), door 1B is the front passenger side door (FrLH), door 1C is the right side door of the rear seats (RrRH), and door 1D is the left side door of the rear seats (RrLH). Alternatively, the vehicle may not have a door in the rear seats, or it may have a rear door.

[0039] like Figure 1As shown, each of the doors 1A, 1B, 1C, and 1D includes a door body 2 forming the lower half of the door and a door frame 3 forming the upper half of the door and guiding the window glass. The door body 2 includes an outer panel 4, an inner panel (not shown) fixed to the inner side (cabin side) of the outer panel 4, and a resin decorative piece (not shown) fixed to the cabin side surface of the inner panel. The doors 1A, 1B, 1C, and 1D, with their rotatable front ends supported by the vehicle body (not shown), can rotate from a fully closed position through a half-open position (half-door position) to a fully open position. The half-open position is a position slightly moved towards the open position than the fully closed position.

[0040] Additionally, doors 1A, 1B, 1C, and 1D each include an outer door handle 5 that is pull-able or rotatable and mounted on the outer panel 4, and an inner door handle 6 that is pull-able or rotatable and mounted on the trim piece. The outer door handle 5 and the inner door handle 6 are forced towards their initial positions by springs (not shown). The vehicle user can manually operate the outer door handle 5 and the inner door handle 6 to move the doors from their initial positions to their open positions, thereby opening doors 1A, 1B, 1C, and 1D. Furthermore, a key lock cylinder 9 that can be manually operated by the user is provided on the outer panel 4 of the driver's side door 1A.

[0041] like Figure 1 As shown, the door locking system 10 includes door locking devices 11A, 11B, 11C, and 11D installed on each of the doors 1A, 1B, 1C, and 1D, as well as a control device 80 for the entire control system (see reference). Figure 14 ).

[0042] like Figure 1 As shown, each door locking device 11A, 11B, 11C, and 11D is respectively disposed in the internal space defined by the outer panel 4 and the inner panel (not shown) of the corresponding door 1A, 1B, 1C, and 1D. More specifically, the door locking devices 11A, 11B, 11C, and 11D are fixed to the inner panel, for example, in a manner located below the outer door handle 5 within this internal space. Furthermore, the door locking devices 11A, 11B, 11C, and 11D are connected to the outer door handle 5 via a flexible cable (inner cable) 7 and an outer cylindrical component (housing) 8, respectively. The cable 7 is inserted into the outer cylindrical component 8, and both transmit the movement of the outer door handle 5 from its initial position to the door open position to the door locking devices 11A, 11B, 11C, and 11D.

[0043] like Figures 2 to 13As shown, the door locking device 11A located on the driver's side door 1A includes a latching mechanism 20, a locking mechanism 40, a double locking mechanism 50, a first motor 61, a second motor 71, and a rotating component 73. The door locking devices 11B located on the passenger side door 1B, and the door locking devices 11C and 11D located on the rear seats door 1C and 1D are the same as the door locking device 11A, except that the emergency release of the double lock can not be achieved by operating the key lock cylinder 9 (described later), so their description is omitted.

[0044] The latching mechanism 20 is configured to selectively form a fully latched state that holds the door 1A in a fully closed position, a partially latched state that holds the door 1A in a half-open position slightly from the fully closed position towards the opening side, and a latch-released state that allows the door 1A to be opened. Furthermore, the fully latched state and the partially latched state are sometimes collectively referred to as the latched state. The latching mechanism 20 includes: a base plate 21, a latch 22, a lifting rod 23, a release rod 31, an opening linkage 32, an outer opening rod 34, an inner rod 35, and an inner opening rod 36.

[0045] The latch 22 has a notch (not shown) capable of engaging with a striker (not shown) fixed to the vehicle body. The latch 22 is supported so as to be rotatable relative to the base plate 21 and can move between a fully latched position, a partially latched position, and a latch-off position by rotation. In the fully latched position, the striker of the vehicle body is held by the notch of the latch 22, thereby holding the door 1A in a fully closed position. In the partially latched position, the door 1A is held in a half-open position while the striker of the vehicle body is still held by the notch of the latch 22. In the latch-off position, the striker is released from the notch of the latch 22, thereby allowing the door 1A to open.

[0046] The latch 22 is forced in the direction of releasing the firing pin by a latch spring (not shown). Furthermore, the rotation of the latch 22 in the direction of releasing the firing pin in the fully latched or half latched position is restricted by the lifting rod 23, thereby holding it in the fully latched or half latched position.

[0047] The lifting rod 23 is supported so that it can rotate relative to the base plate 21 and can be selectively moved to an initial position and a working position by rotation. When the lifting rod 23 is in the initial position, it restricts the latch 22 from rotating in the direction of releasing the firing pin. On the other hand, when the lifting rod 23 moves to the working position, it releases the restriction on the rotation of the latch 22 in the direction of releasing the firing pin. As a result, the latch 22 moves to the latch release position by the latch spring and releases the firing pin, thereby enabling the door 1A to be opened.

[0048] The release lever 31 is supported so as to be rotatable relative to a housing (not shown) of the door locking device 11A, and can be selectively moved to an initial position and a working position by rotation. When the release lever 31 is in the initial position, the lifting lever 23 is also in the initial position. Furthermore, when the release lever 31 moves to the working position, the lifting lever 23 is pressed, causing it to move to the working position. The release lever 31 includes a rotating component engaging portion 311 and a lifting lever engaging portion 312.

[0049] The opening linkage 32 is supported so as to be rotatable relative to the outer opening lever 34. Therefore, the opening linkage 32 can both rotate relative to the outer opening lever 34 and move integrally with the outer opening lever 34. Furthermore, by rotating relative to the outer opening lever 34, the opening linkage 32 can be in the unlocked position (see reference...). Figure 2 and Figure 3 ) and lock position (refer to) Figure 4 and Figure 5 The lever 32 can move between the unlocked and locked positions. Furthermore, the lever 32 can move between the initial position and the working position by moving together with the outer lever 34 in each of the unlocked and locked positions.

[0050] The opening linkage 32 includes a release lever engagement portion 321 and a spring engagement portion 322. When the opening linkage 32 is in the unlocked position, and is moved from the initial position to the working position via the outer opening lever 34, the release lever engagement portion 321 engages with the release lever 31 and presses the release lever 31, thereby moving the release lever 31 from the initial position to the working position. Consequently, the lifting lever engagement portion 312 of the release lever 31 engages with the lifting lever 23 and presses the lifting lever 23, moving the lifting lever 23 from the initial position to the working position, thus switching the latching mechanism 20 to the latch-out state. Furthermore, the opening linkage 32 is configured such that, even when moved from the initial position to the working position, the release lever engagement portion 321 will not engage (contact) with the release lever 31 when the opening linkage 32 is in the locked position. Therefore, when the opening linkage 32 is in the locked position, the latching mechanism 20 cannot be switched to the latch-out state. The spring engagement portion 322 is a protrusion that protrudes in a direction parallel to the axis of rotation of the opening link 32 relative to the outer opening rod 34. The opening link force spring 33 is engaged in the spring engagement portion 322.

[0051] The outer opening lever 34 is supported so as to be rotatable relative to the housing and can be selectively moved to an initial position and a working position by rotation. The outer opening lever 34 is forced to the initial position by the outer opening lever force spring 343. The outer opening lever 34 is connected to the outer door handle 5 of the door 1A. When the outer door handle 5 is manually operated, the outer opening lever 34 moves from the initial position to the working position in conjunction with the outer door handle 5. The outer opening lever 34 includes an inner lever engagement portion 341 and an opening linkage support portion 342. The opening linkage support portion 342 is the part that supports the opening linkage 32 so as to be rotatable.

[0052] The inner rod 35 is supported so as to be rotatable relative to the housing and can be selectively moved to an initial position and a working position by rotation. The inner rod 35 includes an inner opening rod engagement portion 351 and an outer opening rod engagement portion 352. The outer opening rod engagement portion 352 is configured to engage and disengage with the inner rod engagement portion 341 of the outer opening rod 34. When the inner rod 35 moves from the initial position to the working position, the outer opening rod engagement portion 352 engages with the inner rod engagement portion 341 of the outer opening rod 34 and presses the outer opening rod 34, thereby moving the outer opening rod 34 from the initial position to the working position.

[0053] The inner opening lever 36 is supported so as to be rotatable relative to the housing and can be selectively moved to an initial position and a working position by rotation. The inner opening lever 36 is forced to the initial position by an inner opening lever force spring. The inner opening lever 36 is connected to the inner door handle 6 of the door 1A. When the inner door handle 6 is manually operated, the inner opening lever 36 and the inner door handle 6 move in conjunction from the initial position to the working position. The inner opening lever 36 includes an inner lever engagement portion 361. The inner lever engagement portion 361 is configured to engage and disengage with the inner opening lever engagement portion 351 of the inner lever 35. When the inner opening lever 36 moves from the initial position to the working position, the inner lever engagement portion 361 engages with the inner opening lever engagement portion 351 of the inner lever 35, pressing the inner lever 35, thereby moving the inner lever 35 from the initial position to the working position.

[0054] Thus, in addition to moving the outer opening lever 34 from its initial position to its working position by manually operating the outer door handle 5, the inner opening lever 36 and the inner lever 35 can also be moved from their initial positions to their working positions by manually operating the inner door handle 6, thereby moving the outer opening lever 34 from its initial position to its working position. Furthermore, when the outer opening lever 34 moves from its initial position to its working position with the opening linkage 32 in the unlocked position, the opening linkage 32, the release lever 31, and the lifting lever 23 move from their initial positions to their working positions in sequence (see reference). Figure 8 and Figure 9This switches the latching mechanism 20 to the latch-out state. Thus, the user can manually switch the latching mechanism 20 from the latched state to the latch-out state by operating the outer door handle 5 or the inner door handle 6, thereby opening the door 1A. On the other hand, when the opening linkage 32 is in the locked position, even if the opening linkage 32 moves to the working position, it will not contact (lock) the release lever 31. Therefore, even if the user manually operates the outer door handle 5 or the inner door handle 6, they cannot switch the latching mechanism 20 to the latch-out state, and thus cannot open the door 1A.

[0055] Locking mechanism 40 can switch between locking states (see reference) Figure 4 and Figure 5 ) and unlock status (refer to) Figure 2 and Figure 3 The locked state prevents the latch mechanism 20 from being switched to the unlocked state by manually operating the outer door handle 5 or the inner door handle 6. The unlocked state allows the latch mechanism 20 to be switched to the unlocked state by manually operating the outer door handle 5 or the inner door handle 6. The locking mechanism 40 includes: a locking lever 41, a locking linkage 42, an active lever 43, and a locking state detection switch 44.

[0056] The locking lever 41 is supported so as to be rotatable relative to the housing and can be selectively moved to an unlocked position and a locked position by rotation. The locking lever 41 includes a gear portion 411 and a locking link engagement portion 412. The gear portion 411 is a sector gear portion that meshes with a worm gear 62 mounted on the rotating shaft of the first motor 61. The locking link engagement portion 412 is formed at a position radially outward from the rotation center of the locking lever 41. One end of the locking link 42 is rotatably connected to the locking link engagement portion 412.

[0057] The locking link 42 is an elongated component. A cam pin engagement portion 421 is formed in the middle of the locking link 42 along its length. The cam pin engagement portion 421 is formed to protrude in a direction orthogonal to the length of the locking link 42. In addition, a locking link engagement portion 412 is rotatably connected to a locking lever 41 at one end of the locking link 42 along its length, and a locking link engagement portion 431 is rotatably connected to a drive lever 43 at the other end of the locking link 42 along its length. The locking link 42 is linked with the locking lever 41. When the locking lever 41 moves to the unlock position, the locking link 42 moves to the unlock position; when the locking lever 41 moves to the lock position, the locking link 42 moves to the lock position.

[0058] The drive lever 43 is supported so that it can rotate coaxially with and independently of the inner lever 35 relative to the housing. The drive lever 43 is linked to the locking lever 41 via the locking link 42, thereby selectively moving to a locked position and an unlocked position. When the locking lever 41 moves to the locked position, the drive lever 43 moves to the locked position; when the locking lever 41 moves to the unlocked position, the drive lever 43 moves to the unlocked position. The locked position is one end of the movable range of the drive lever 43, and the unlocked position is the other end of the movable range of the drive lever 43. The drive lever 43 is selectively forceped to the locked and unlocked positions by a limiting spring (not shown). Specifically, the drive lever 43 is forceped to the locked position when it is located on the locked position side compared to the middle position of its movable range, and is forceped to the unlocked position when it is located on the unlocked position side compared to the middle position of its movable range.

[0059] The drive lever 43 includes a locking link engagement portion 431 and a spring mounting portion 432. The locking link engagement portion 431 is the part that rotatably connects to the locking link 42. The spring mounting portion 432 is the part for mounting the opening link force spring 33. When the drive lever 43 is in the locked position, the opening link force spring 33 holds the opening link 32 in the locked position; when the drive lever 43 is in the unlocked position, the opening link force spring 33 holds the opening link 32 in the unlocked position. However, even when the drive lever 43 is in the unlocked position, the opening link force spring 33 can allow the opening link 32 to be in the locked position through elastic deformation. For example, as... Figure 3 and Figure 5 As shown, the opening link force spring 33 is a torsion helical spring with two parallel arms that can elastically deform by expanding into each other. The spring engagement portion 322 of the opening link 32 is located between the two arms of the opening link force spring 33 and protrudes in a direction parallel to the axis of rotation of the opening link 32.

[0060] The lock state detection switch 44 detects the state of the locking mechanism 40 (locked state, unlocked state). The lock state detection switch 44 is configured to be pressed by the locking lever 41 when the locking lever 41 is in the unlocked position (unlocked state). Figure 2 and Figure 3 When the locking lever 41 is in the corresponding locked position (in the locked state), it separates from the locking lever 41 (refer to...). Figure 4 and Figure 5 ).

[0061] The first motor 61 is the drive source for the locking mechanism 40. A worm gear 62 is mounted on the rotating shaft of the first motor 61. The worm gear 62 meshes with the gear portion 411 of the locking lever 41. In the locking mechanism 40, when the locking lever 41 moves to the locking position by the driving force of the first motor 61, the drive lever 43, which is linked to the locking lever 41 via the locking link 42, moves to the locking position, thereby moving the opening link 32 to the locking position. Conversely, in the locking mechanism 40, when the locking lever 41 moves to the unlocking position by the driving force of the first motor 61, the drive lever 43, which is linked to the locking lever 41 via the locking link 42, moves to the unlocking position, thereby moving the opening link 32 to the unlocking position. Thus, the door locking device 11A can switch between the locked and unlocked states by the driving force of the first motor 61. Furthermore, when the locking mechanism 40 is in the unlocked state, the door locking device 11A can switch the latching mechanism 20 from the latched state to the latch-off state by manually operating the outer door handle 5 or the inner door handle 6, thereby allowing the door 1 to be opened.

[0062] When the locking mechanism 40 is in the locked state, the double locking mechanism 50 can be set in the double locking state (see reference). Figure 6 and Figure 7 ) and the dual-lock setting unlock state (refer to Figure 4 and Figure 5 The dual locking mechanism 50 switches between the two states. The dual locking setting state prevents switching the locking mechanism 40 to the unlocked state. The dual locking setting deactivation state allows switching the locking mechanism 40 to the unlocked state. The dual locking mechanism 50 is composed of a tapping cam mechanism that alternates between the dual locking setting state and the dual locking setting deactivation state through a tapping operation in the same direction.

[0063] The double locking mechanism 50 (tapping cam mechanism) includes: a pin 51, an outer cylinder 52, an inner cylinder 53, and a pin-applying spring (not shown). The pin 51 is a long, rod-shaped component. A pin cam portion (not shown) is formed on the outer circumferential surface of the pin 51. The pin cam portion is a protrusion extending in the axial direction. Furthermore, the pin 51 is inserted into the outer cylinder 52 and the inner cylinder 53 with its front and rear ends exposed, and is rotatable relative to the outer cylinder 52 and the inner cylinder 53, and can move along the axial direction. Furthermore, by moving along the axial direction, the pin 51 can selectively move to a protruding position and a retracted position. The protruding position is the position where the pin 51 moves forward (from the rear end towards the front end). The retracted position is the position where the pin 51 moves backward (from the front end towards the rear end). Moreover, the pin 51 is forceped forward in the axial direction relative to the outer cylinder 52 by the pin-applying spring. An outer cylinder cam portion (not shown) is formed on the inner circumferential surface of the outer cylinder 52. The outer cylinder cam portion has multiple cam teeth and cam grooves that are alternately formed circumferentially. The pin 51 is held in a protruding position by engaging with the cam groove of the outer cylinder cam portion, and is held in a retracted position by engaging with the cam teeth of the outer cylinder cam portion. The inner cylinder 53 is a striking member inserted into the outer cylinder 52 and is movable relative to the outer cylinder 52 along its axial direction. The inner cylinder 53 can move between a non-switching position and a switched position by moving along its axial direction. An inner cylinder cam portion (not shown) is formed on the end face of the inner cylinder 53 opposite to the pin cam portion. The inner cylinder cam portion is a cam surface with multiple alternating ridges and valleys formed circumferentially. As the inner cylinder 53 moves from the non-switching position to the switched position, the inner cylinder cam portion presses against the pin cam portion of the pin 51 by overcoming the force of the pin-applying spring through the cam surface, thereby pressing the pin 51 backward and rotating it. Additionally, a cam arm 531 is formed on the outer circumferential surface of the inner cylinder 53. The cam arm 531 is a tongue-shaped portion that protrudes in a direction orthogonal to the axis of the inner cylinder 53.

[0064] like Figure 11 As shown, in the double locking mechanism 50, pressing the cam arm 531 causes the rotating component 73 to rotate clockwise, moving the inner cylinder 53 from the non-switching position to the switching position. This engages the cam surface of the inner cylinder cam portion with the pin cam portion, pressing the pin 51 backward while rotating it. Then, releasing the pressure on the cam arm 531 returns the inner cylinder 53 from the switching position to the non-switching position, and the pin 51 moves forward due to the force of the pin spring, engaging the pin cam portion with the cam tooth or cam groove of the outer cylinder cam portion of the outer cylinder 52. Thus, each time the cam arm 531 is operated and released, the pin cam portion alternately engages with the cam tooth and cam groove, alternately switching the pin 51 to the protruding position and the retracted position.

[0065] In the double locking mechanism 50, when the locking link 42 of the locking mechanism 40 is in the locked position, when the pin 51 moves to the protruding position, the pin 51 engages with the cam pin engagement portion 421 of the locking link 42, thereby restricting the movement of the locking link 42 from the locked position to the unlocked position (see reference). Figure 6 and Figure 7 Therefore, switching of the locking mechanism 40 to the unlocked state (double-lock setting state) is prohibited. On the other hand, in the double-locking mechanism 50, when the pin 51 moves to the retracted position, the engagement between the pin 51 and the cam pin engagement portion 421 is released, thereby allowing the locking link 42 to move from the locking position to the unlocking position (see reference). Figure 4 and Figure 5 This allows the locking mechanism 40 to switch to the unlocked state (dual locking setting unlocked state).

[0066] The double-locking state detection switch 54 detects the state of the double-locking mechanism 50 (double-locking set state, double-locking set release state). The double-locking state detection switch 54 is configured to be pressed by pin 51 when pin 51 is in the retracted position (double-locking set release state). Figure 4 and Figure 5 When pin 51 is in the protruding position (dual locking setting state), it separates from pin 51 (refer to...). Figure 6 and Figure 7 ).

[0067] The second motor 71 is the drive source for the rotating component 73. A worm gear 72 is mounted on the rotating shaft of the second motor 71. The worm gear 72 meshes with the rotating component 73, which is configured as a worm wheel. The second motor 71 can drive the rotating component 73 in both forward and reverse rotation directions.

[0068] The rotating component 73 can be moved between a neutral position, a latch-release corresponding position, and a cam-operated position by being driven to rotate by the second motor 71. The neutral position is the middle position of the movable range of the rotating component 73. The latch-release corresponding position is the position at one end of the movable range of the rotating component 73. The cam-operated position is the position at the other end of the movable range of the rotating component 73. In addition, the rotating component 73 includes a release lever engagement portion 731 and a cam engagement portion 732. The release lever engagement portion 731 is configured to engage and disengage with the rotating component engagement portion 311 of the release lever 31. However, when the rotating component 73 is in a rotational position between the neutral position and the latch-release corresponding position, the rotating component engagement portion 311 of the release lever 31 is in contact with the release lever engagement portion 731 of the rotating component 73; when the rotating component 73 is in a rotational position between the neutral position and the cam-operated position, the rotating component engagement portion 311 of the release lever 31 is not in contact with the release lever engagement portion 731. The cam engagement portion 732 is configured to engage and disengage with the cam arm 531 of the double locking mechanism 50. However, when the rotating member 73 is in a rotational position between the neutral position and the cam actuation position, the cam arm 531 contacts the cam engagement portion 732 of the rotating member 73. When the rotating member 73 is in a rotational position between the neutral position and the latch release position, the cam arm 531 does not contact the cam engagement portion 732.

[0069] Therefore, as Figure 12 and Figure 13 As shown, the rotating component 73 is driven in one direction by the second motor 71. Figure 12 The rotating component 73 is rotated clockwise to move from the neutral position to the latch-released position. This causes the release lever engagement portion 731 of the rotating component 73 to engage with the rotating component engagement portion 311 of the release lever 31, pressing the release lever 31 and moving it to the working position. Then, when the release lever 31 reaches the working position, the lifting lever engagement portion 312 of the release lever 31 engages with the lifting lever 23, pressing it and moving it to the working position, thus switching the latch mechanism 20 to the latch-released state. Because the rotating component 73 presses the release lever 31 directly without passing through the opening linkage 32, the latch mechanism 20 can be switched to the latch-released state via the second motor 71 regardless of the state of the locking mechanism 40 or the double locking mechanism 50.

[0070] In addition, such as Figure 10 and Figure 11 As shown, the rotating component 73 is driven by the second motor 71 to move in the opposite direction ( Figure 11The rotating component 73 is moved from the neutral position to the cam actuation position by rotating (clockwise). This causes the cam engagement portion 732 of the rotating component 73 to engage with and press the cam arm 531 of the double locking mechanism 50, moving the inner cylinder 53 (tapping component) from the non-switching position to the switching position. Each time the rotating component 73 is moved from the neutral position to the cam actuation position by the opposite driving force of the second motor 71, and then returned to the neutral position by the force of the rotating component's spring, the state of the double locking mechanism 50 can be alternately switched between the double locking setting state and the double locking setting deactivation state.

[0071] Additionally, the door locking device 11A includes a key lever 45, a key switch lever 46, and a key crank 47. The key lever 45 can rotate integrally with the inner cylinder (bolt) of the key lock cylinder 9 through operation of the key lock cylinder 9. The key switch lever 46 can rotate relative to the housing and moves in conjunction with the key lever 45 between a neutral position, an unlocking position, and a locking position. Thus, the key switch lever 46 moves from the neutral position to the unlocking position or the locking position in conjunction with the operation of the key lock cylinder 9. The neutral position is the middle position of the movable range of the key switch lever 46. The unlocking position is the position where the lever rotates in one direction from the neutral position. The locking position is the position where the lever rotates in the opposite direction from the neutral position.

[0072] The key crank 47 is supported so that it can rotate relative to the housing and can be selectively moved to an initial position and a working position by rotation. When the key switch lever 46 moves from the neutral position to the unlocking position, the key crank 47 is pressed by the key switch lever 46 and moves from the initial position to the working position. Then, when the key crank 47 moves to the working position, the key crank 47 presses the cam arm 531, causing the inner cylinder 53 to move from the non-switching position to the switching position. Therefore, when the double locking mechanism 50 is in the double locking setting state, it is possible to switch to the double locking setting release state by operating the key lock cylinder 9. Thus, even if the double locking cannot be released by the second motor 71, for example, when the vehicle battery is depleted, the double locking can be manually released in an emergency. However, the key lock cylinder 9 is only located on the driver's side door 1A, and the emergency release of the double locking can only be performed on the driver's side door 1A. Therefore, it is possible that the locking or unlocking state of the driver's side door 1A is inconsistent with that of the other doors 1B, 1C, and 1D.

[0073] like Figure 14As shown, the control device 80 is composed of a microprocessor centered on a CPU 81. Besides the CPU 81, it also includes a ROM 82 for storing processing programs, a RAM 83 for temporary data storage, input / output ports, and a communication port. The control device 80 inputs signals from various switches, such as the lock state detection switch 44 and the dual lock state detection switch 54, for each of the door locking devices 11A, 11B, 11C, and 11D. Additionally, the control device 80 also inputs signals from the door opening / closing switch 91 and a wireless remote key 92 configured as a so-called smart key. The door opening / closing switch 91 is a switch used to indicate the opening and closing of the doors through user operation, and is located near the outer door handle 5 or the outer door handle 5 of the outer panel 4 of the driver's side door 1A and the passenger side door 1B. Furthermore, the door opening / closing switch 91 can be a push-button switch or a touch switch. Alternatively, the door opening / closing switch 91 can also be a sensor that detects the operation of the outer door handle 5. The remote key 92 can remotely lock, unlock, apply and deactivate double locks on doors 1A, 1B, 1C, and 1D. Additionally, the control device 80 outputs drive signals to the first motor 61 and the second motor 71 for each of the door locking devices 11A, 11B, 11C, and 11D.

[0074] Next, the operation of the door locking system 10 of this embodiment, configured as described, will be explained. The operation when double locking is requested and the operation when double locking is requested will be explained in particular. First, the operation when double locking is requested will be explained, and then the operation when double locking is requested will be explained. Figure 15 This is a flowchart of an example of a dual-lock application control program executed by the CPU 81 of the control device 80.

[0075] When executing the dual-lock application control procedure, the CPU 81 of the control device 80 first determines whether a dual-lock application request has been received from the host system (step S100). A dual-lock application request may be, for example, initiated after a predetermined time has elapsed since the response from the user-carried remote key 92 has disappeared, or by operating the remote key 92 or the door open / close switch 91 to lock the doors, and by switching the locking mechanisms 40 of the door locking devices 11A, 11B, 11C, and 11D to the locked state. If the CPU 81 determines that no dual-lock application request has been received, the procedure ends.

[0076] On the other hand, when the CPU 81 determines that a dual-locking application request has been received, it inputs a signal from the dual-locking state detection switch 54 of the door locking device 11A located on the driver's seat (FrRH) door 1A (step S102). Next, the CPU 81 determines, based on the input signal, whether the state of the dual-locking mechanism 50 of the FrRH is the dual-locking setting release state (step S104). When the CPU 81 determines that the state of the dual-locking mechanism 50 of the FrRH is the dual-locking setting release state, it drives and controls the corresponding second motor 71 to switch the state of the dual-locking mechanism 50 (step S106), proceeding to step S108. On the other hand, when the CPU 81 determines that the state of the dual-locking mechanism 50 of the FrRH is not the dual-locking setting release state but the dual-locking setting state, it skips step S106 and proceeds to step S108.

[0077] Next, the CPU 81 receives a signal from the dual-lock status detection switch 54 of the door locking device 11B in the passenger seat (FrLH) (step S108). Then, based on the input signal, the CPU 81 determines whether the state of the dual-lock mechanism 50 of the FrLH is the dual-lock setting release state (step S110). When the CPU 81 determines that the state of the dual-lock mechanism 50 of the FrLH is the dual-lock setting release state, it drives and controls the corresponding second motor 71 to switch the state of the dual-lock mechanism 50 (step S112), proceeding to step S114. On the other hand, when the CPU 81 determines that the state of the dual-lock mechanism 50 of the FrLH is not the dual-lock setting release state but the dual-lock setting state, it skips step S112 and proceeds to step S114.

[0078] Next, the CPU 81 receives a signal from the dual-lock status detection switch 54 of the door locking device 11C on the right side of the rear seat (RrRH) (step S114). Then, based on the input signal, the CPU 81 determines whether the state of the dual-lock mechanism 50 of RrRH is the dual-lock setting release state (step S116). When the CPU 81 determines that the state of the dual-lock mechanism 50 of RrRH is the dual-lock setting release state, it drives and controls the corresponding second motor 71 to switch the state of the dual-lock mechanism 50 (step S118), proceeding to step S120. On the other hand, when the CPU 81 determines that the state of the dual-lock mechanism 50 of RrRH is not the dual-lock setting release state but the dual-lock setting state, it skips step S118 and proceeds to step S120.

[0079] Next, the CPU 81 receives a signal from the dual-lock status detection switch 54 of the door locking device 11D on the left side of the rear seat (RrLH) (step S120). Then, the CPU 81 determines, based on the input signal, whether the state of the dual-lock mechanism 50 of the RrLH is the dual-lock setting release state (step S122). When the CPU 81 determines that the state of the dual-lock mechanism 50 of the RrLH is the dual-lock setting release state, it drives and controls the corresponding second motor 71 to switch the state of the dual-lock mechanism 50 (step S124), ending the process. On the other hand, when the CPU 81 determines that the state of the dual-lock mechanism 50 of the RrLH is not the dual-lock setting release state but the dual-lock setting state, step S124 is skipped, ending the process.

[0080] The second motor 71 is used to switch the state of the latching mechanism 20 and the state of the double-locking mechanism 50. Furthermore, the double-locking mechanism 50 is configured such that, when the second motor 71 switches the state of the latching mechanism 20, a reverse drive alternates between the double-locking setting state and the double-locking setting deactivation state. Therefore, for example, manually releasing the double-lock of the driver's side door 1A in an emergency may result in inconsistent application and deactivation states of the double-locking between the driver's side door 1A and the other doors 1B, 1C, and 1D. In this embodiment, when the CPU 81 receives a double-locking application request, it checks the state of the double-locking mechanism 50 for each of the door locking devices 11A, 11B, 11C, and 11D of the vehicle using the double-locking state detection switch 54 to determine whether the double-locking mechanism 50 is in the double-locking setting deactivation state. Furthermore, the CPU81 drives and controls the corresponding second motor 71 for door locking devices in the dual-lock setting unlocked state to switch the state of the dual-lock mechanism 50, while not driving and controlling the corresponding second motor 71 for door locking devices in the dual-lock setting state. Thus, when applying the dual-lock requirement, the state of the dual-lock mechanism 50 of all doors 1A, 1B, 1C, and 1D can be unified to the dual-lock setting state.

[0081] Next, the action required to unlock the double lock will be explained. Figure 16 and Figure 17 This is a flowchart of an example of a dual lockout control procedure executed by CPU81.

[0082] When executing the dual-lock release control procedure, CPU 81 first determines whether a dual-lock release request has been received from the host system (step S200). A dual-lock release request is generated, for example, when the door lock is released via operation of the remote key 92 or the door open / close switch 91. After the dual-lock is released, the door lock is also released. If CPU 81 determines that no dual-lock release request has been received, the procedure ends.

[0083] On the other hand, when the CPU 81 determines that a dual-lock setting release request has been received, it inputs a signal from the dual-lock status detection switch 54 of the door locking device 11A disposed on the driver's seat (FrRH) door 1A (step S202). Next, the CPU 81 determines whether the state of the dual-lock mechanism 50 of the FrRH is the dual-lock setting state based on the input signal (step S204). When the CPU 81 determines that the state of the dual-lock mechanism 50 of the FrRH is the dual-lock setting state, it drives and controls the corresponding second motor 71 to switch the state of the dual-lock mechanism 50 (step S206). Then, the CPU 81 inputs a signal from the dual-lock status detection switch 54 of the FrRH (step S208). Next, the CPU 81 determines whether the state of the dual-lock mechanism 50 of the FrRH has been switched to the dual-lock setting release state based on the input signal (step S210). When CPU81 determines that the state of the dual-lock mechanism 50 of FrRH has not switched to the dual-lock setting release state, it increments the value of the dual-lock anomaly detection counter used by FrRH by 1 (step S212) and determines whether the dual-lock anomaly detection counter used by FrRH has reached a threshold (e.g., value 2 or value 3) (step S214). When CPU81 determines that the dual-lock anomaly detection counter used by FrRH is lower than the threshold, it returns to step S206 and repeats the process.

[0084] During the repeated processing of steps S206 to S214, if the state of the dual-locking mechanism 50 of FrRH has not switched to the dual-locking setting release state, and if it is determined in step S214 that the dual-locking exception detection counter used by FrRH is above the threshold, the CPU81 outputs an error (step S264) and terminates the program. On the other hand, if the CPU81 determines in step S210 that the state of the dual-locking mechanism 50 of FrRH has switched to the dual-locking setting release state, it resets the dual-locking exception detection counter used by FrRH to the value 0 (step S216) and proceeds to step S218.

[0085] Next, CPU 81 inputs a signal from the dual-lock status detection switch 54 of the door locking device 11B in the passenger seat (FrLH) (step S218). Next, CPU 81 determines, based on the input signal, whether the dual-lock mechanism 50 of FrLH is in the dual-lock setting state (step S220). When CPU 81 determines that the dual-lock mechanism 50 of FrLH is in the dual-lock setting state, it drives and controls the corresponding second motor 71 to switch the state of the dual-lock mechanism 50 (step S222). Next, CPU 81 inputs a signal from the dual-lock status detection switch 54 of FrLH (step S224). Next, CPU 81 determines, based on the input signal, whether the state of the dual-lock mechanism 50 of FrLH has switched to the dual-lock setting deactivation state (step S226). When CPU81 determines that the state of the dual-lock mechanism 50 of FrLH has not switched to the dual-lock setting release state, it increments the value of the dual-lock anomaly detection counter used by FrLH by 1 (step S228) and determines whether the dual-lock anomaly detection counter used by FrLH is above the threshold (e.g., value 2 or value 3) (step S230). When CPU81 determines that the dual-lock anomaly detection counter used by FrLH is below the threshold, it returns to step S222 and repeats the process.

[0086] During the repeated processing of steps S222 to S230, if the state of the dual-locking mechanism 50 of FrLH has not switched to the dual-locking setting release state, and if it is determined in step S230 that the dual-locking exception detection counter used by FrLH is above the threshold, the CPU81 outputs an error (step S264) and terminates the program. On the other hand, if it is determined in step S226 that the state of the dual-locking mechanism 50 of FrLH has switched to the dual-locking setting release state, the CPU81 resets the dual-locking exception detection counter used by FrLH to the value 0 (step S232) and proceeds to step S234.

[0087] Next, CPU 81 inputs a signal from the dual-lock status detection switch 54 of the door locking device 11C on the right side of the rear seat (RrRH) (step S234). Next, CPU 81 determines, based on the input signal, whether the state of the dual-lock mechanism 50 of RrRH is in the dual-lock setting state (step S236). When CPU 81 determines that the state of the dual-lock mechanism 50 of RrRH is in the dual-lock setting state, it drives and controls the corresponding second motor 71 to switch the state of the dual-lock mechanism 50 (step S238). Next, CPU 81 inputs a signal from the dual-lock status detection switch 54 of RrRH (step S240). Next, CPU 81 determines, based on the input signal, whether the state of the dual-lock mechanism 50 of RrRH has switched to the dual-lock setting release state (step S242). When CPU81 determines that the state of the dual-lock mechanism 50 of RrRH has not switched to the dual-lock setting release state, it increments the value of the dual-lock anomaly detection counter used by RrRH by 1 (step S244) and determines whether the dual-lock anomaly detection counter used by RrRH is above the threshold (e.g., value 2 or value 3) (step S246). When CPU81 determines that the dual-lock anomaly detection counter used by RrRH is below the threshold, it returns to step S238 and repeats the process.

[0088] During the repeated processing of steps S238 to S246, if the state of the dual-locking mechanism 50 of RrRH has not switched to the dual-locking setting release state, and if it is determined in step S246 that the dual-locking exception detection counter used by RrRH is above the threshold, the CPU81 outputs an error (step S264) and terminates the program. On the other hand, if it is determined in step S242 that the state of the dual-locking mechanism 50 of RrRH has switched to the dual-locking setting release state, the CPU81 resets the dual-locking exception detection counter used by RrRH to the value 0 (step S248) and proceeds to step S250.

[0089] Next, the CPU 81 receives a signal from the dual-lock status detection switch 54 of the door locking device 11D on the left side of the rear seat (RrLH) (step S250). Next, the CPU 81 determines, based on the input signal, whether the state of the dual-lock mechanism 50 of the RrLH is in the dual-lock setting state (step S252). When the CPU 81 determines that the state of the dual-lock mechanism 50 of the RrLH is in the dual-lock setting state, it drives and controls the corresponding second motor 71 to switch the state of the dual-lock mechanism 50 (step S254). Next, the CPU 81 receives a signal from the dual-lock status detection switch 54 of the RrLH (step S256). Next, the CPU 81 determines, based on the input signal, whether the state of the dual-lock mechanism 50 of the RrLH has switched to the dual-lock setting deactivation state (step S258). When CPU81 determines that the state of the dual-locking mechanism 50 of RrLH has not switched to the dual-locking setting release state, it increments the dual-locking exception detection counter used by RrLH by 1 (step S260) and determines whether the dual-locking exception detection counter used by RrLH is above the threshold (e.g., value 2 or value 3) (step S262). When CPU81 determines that the dual-locking exception detection counter used by RrLH is below the threshold, it returns to step S254 and repeats the process.

[0090] During the repeated processing of steps S254 to S262, if the state of the dual-locking mechanism 50 of RrLH has not switched to the dual-locking setting release state, and if it is determined in step S262 that the dual-locking exception detection counter used by RrLH is above the threshold, the CPU81 outputs an error (step S264) and terminates the program. On the other hand, if it is determined in step S258 that the state of the dual-locking mechanism 50 of RrLH has switched to the dual-locking setting release state, the CPU81 resets the dual-locking exception detection counter used by RrLH to the value 0 (step S266) and terminates the program.

[0091] In this way, when the CPU 81 receives a double-lock release request, it checks the state of the double-lock mechanism 50 for each of the door locking devices 11A, 11B, 11C, and 11D on the vehicle's doors using the double-lock state detection switch 54 to determine whether the double-lock mechanism 50 is in the double-lock setting state. Furthermore, for door locking devices in the double-lock setting state, the CPU 81 drives and controls the corresponding second motor 71 to switch the state of the double-lock mechanism 50; for door locking devices in the double-lock setting release state, it does not drive and control the corresponding second motor 71. Therefore, for a double-lock release request, the state of the double-lock mechanism 50 on all doors 1A, 1B, 1C, and 1D can be uniformly set to the double-lock setting release state. In addition, even if the CPU81 drives the second motor 71 corresponding to the door locking device in the dual-lock setting state, it repeats the drive control of the second motor 71 until the number of repetitions reaches the specified number (until the dual-locking abnormality detection counter is above the threshold) without switching to the dual-locking setting release state, thereby more reliably releasing the dual lock.

[0092] Furthermore, since the dual locking mechanism 50 is configured to alternate between the dual locking setting state and the dual locking setting release state by a tapping operation, and the switching to the dual locking setting release state and the latch release state is realized by a single motor (second motor 71), the manufacturing cost can be further reduced by reducing the number of parts.

[0093] Furthermore, the present invention is not limited to the above-described embodiments. As long as it falls within the technical scope of the present invention, it can be implemented in various ways, which is self-evident.

[0094] For example, in the above embodiment, the first motor 61 is used to drive the locking mechanism 40, and the second motor 71 is used to drive both the latch mechanism 20 and the double locking mechanism 50. However, the first motor 61 may also be used to drive both the locking mechanism 40 and the double locking mechanism 50, and the second motor 71 may be used only to drive the latch mechanism 20. Alternatively, different motors may be used to drive the latch mechanism 20, the locking mechanism 40, and the double locking mechanism 50, respectively.

[0095] In the above embodiment, the door locking system 10 has a single control device 80 that controls multiple door locking devices 11A, 11B, 11C, and 11D. However, as... Figure 18Similar to the door locking system 110 shown, the same number of door locking control devices 112A, 112B, 112C, and 112D can be independently provided with the control device 80 to control multiple door locking devices 11A, 11B, 11C, and 11D respectively. The control device 80 is configured to communicate with the door locking control devices 112A, 112B, 112C, and 112D and to receive signals from the remote key 92. In this case, during the dual-lock application control procedure, for example, when the control device 80 receives a dual-lock application request in step S100, it instructs the door locking control device 112A to perform steps S102 to S106, instructs the door locking control device 112B to perform steps S108 to S112, instructs the door locking control device 112C to perform steps S114 to S118, and instructs the door locking control device 112D to perform steps S120 to S124. Furthermore, in the dual-lock release control procedure, for example, when the control device 80 receives the dual-lock release request in step S200, it instructs the door lock control device 112A to execute steps S202 to S216 and S264, instructs the door lock control device 112B to execute steps S218 to S232 and S264, instructs the door lock control device 112C to execute steps S234 to S248 and S264, and instructs the door lock control device 112D to execute steps S250 to S266. The door lock control devices 112A, 112B, 112C, and 112D control their respective door lock devices 11A, 11B, 11C, and 11D through parallel processing.

[0096] In addition, such as Figure 19The door locking system 210 shown may also be independently equipped with a door locking control device 212A that controls some of the multiple door locking devices 11A, 11B, 11C, and 11D (e.g., door locking devices 11A and 11B), and a door locking control device 212B that controls the remaining multiple (e.g., door locking devices 11C and 11D). The control device 80 is configured to communicate with the door locking control devices 212A and 212B and to receive signals from the remote key 92. In this case, during the dual-lock application control procedure, for example, when the control device 80 receives a dual-lock application request in step S100, it instructs the door locking control device 212A to perform the processing steps S102 to S112, and instructs the door locking control device 212B to perform the processing steps S114 to S124. Furthermore, in the dual-lock release control procedure, for example, when the control device 80 receives the dual-lock release request in step S200, it instructs the door lock control device 212A to execute steps S202 to S232 and S264, and instructs the door lock control device 212B to execute steps S234 to S266. The door lock control devices 212A and 212B control the corresponding door lock devices 11A, 11B, 11C, and 11D respectively through parallel processing.

[0097] In addition, such as Figure 20 Like the door locking system 310 shown, it can also have a single door locking control device 312 independently of the control device 80 that receives signals from the remote key 92. This door locking control device 312 controls multiple door locking devices 11A, 11B, 11C, and 11D.

[0098] [Industry availability]

[0099] This invention can be applied to industries such as the manufacturing of vehicle door locking systems.

Claims

1. A vehicle door locking system comprising: multiple door locking devices disposed on multiple doors of a vehicle; And a control device for controlling the plurality of door locking devices, The plurality of door locking devices each include: a latching mechanism that selectively forms a latched state that holds a corresponding door in a closed state and a latch-released state that allows the corresponding door to open; a locking mechanism that selectively forms a locked state that prevents the latching mechanism from switching to the latch-released state and an unlocked state that allows the latching mechanism to switch to the latch-released state; a dual locking mechanism that selectively forms a dual locking set state that prevents the locking mechanism from switching to the unlocked state and a dual locking set release state that allows the locking mechanism to switch to the unlocked state; a motor that drives the dual locking mechanism; and a detector that detects the state of the dual locking mechanism. The dual-locking mechanism alternately switches between the dual-locking setting state and the dual-locking setting deactivation state by driving the motor in one direction. When a switch of the dual locking mechanism is required, the control device drives the motor of the door locking device whose dual locking mechanism state detected by the detector is inconsistent with the required switching target state in one direction, and does not drive the motor of the door locking device whose dual locking mechanism state detected by the detector is consistent with the required switching target state in one direction.

2. The door locking system as described in claim 1, wherein, When a switch to the dual-lock setting release state is required, the control device drives the motor of the door locking device whose dual-lock mechanism is detected by the detector to the one direction, and does not drive the motor of the door locking device whose dual-lock mechanism is detected by the detector to the one direction.

3. The door locking system as described in claim 2, wherein, Even if the corresponding motor is driven in one direction, and the state of the dual locking mechanism detected by the corresponding detector remains unchanged in the dual locking setting state, the control device repeats the drive control of the corresponding motor in one direction until the state of the dual locking mechanism detected by the corresponding detector changes to the dual locking setting release state, or the repetition reaches a predetermined number of times.

4. The door locking system as described in claim 1, wherein, When a switch to the dual-lock setting state is required, the control device drives the motor of the door locking device whose dual-lock mechanism is detected by the detector to the one direction, and does not drive the motor of the door locking device whose dual-lock mechanism is detected by the detector to the one direction.

5. The door locking system as described in any one of claims 1 to 4, wherein, It also has: A first motor drives the locking mechanism; as well as A second motor drives the latching mechanism. The dual locking mechanism alternately switches between the dual locking setting state and the dual locking setting release state by driving the second motor, which is the motor, in the opposite direction to driving the latch mechanism.

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