JP2009061814A - Vehicular lock apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular lock apparatus capable of appropriately performing a lock operation. <P>SOLUTION: A retractable-type vehicular seat is retracted by rotating a seat back on the seat cushion side, releasing a floor lock in such a state that the seat back and the seat cushion are overlapped and being lifted up toward the lateral side of a vehicle body. A striker mounted on the back surface of the seat back is connected with a dragger unit provided on the lateral side of the vehicle body to be fixed. After the unlock operation of the dragger unit is performed (122, 124), spacing of the striker from the dragger unit is estimated (126) and a dragger motor is driven so that the latch of the dragger unit moves to the initial position (128 to 132). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle locking device, and more particularly to a retractable vehicle seat locking device using an electric locking mechanism used for a back door, a trunk, or the like.

  In electric lock devices such as back doors and trunks, when a back door, trunk hood, etc. are closed and a striker is inserted into the lock device, a motor is operated to pull in the striker and lock it. . In such a locking device, when unlocking is instructed by a release switch or the like, the lock with the striker is released by operating the motor to perform the unlocking operation. And when it moves to the release position, the striker is separated from the lock device using the biasing force of the biasing means such as a spring.

On the other hand, in a vehicle having a luggage compartment such as a wagon, a van, or a one-box car, a vehicle seat such as a rear seat can be stowed up and stored to the side of the vehicle body to effectively use the luggage compartment space. is there. For example, in the technique described in Patent Document 1, a folding seat flip-up mechanism for electrically raising and lowering a vehicle seat to the side of the vehicle is proposed, and the vehicle seat is flipped electrically to the vehicle side. Since it is stored in the raised position, it is possible to easily store and unfold the sheet without burden on the operator.
Utility Model Registration No. 2539420

  However, in the technique described in Patent Document 1, there is no description on fixing when the vehicle seat is stored in the side of the vehicle and the vehicle is stored, and the vehicle seat is stored in consideration of vibration during traveling. It is preferable to provide means for fixing the case.

  Therefore, in order to maintain the retracted state of the vehicle seat, it is conceivable to apply an electric lock device used for the above-described back door, trunk or the like.

  However, in a back door, trunk, etc., if the striker remains in the lock device when the lock is released, the lock device will be activated again and start the operation to pull the striker. Need to be separated. In order to prevent this, the back door and the trunk are provided with a biasing means such as a spring for separating the striker when unlocked, and the striker is separated from the lock device by the biasing means. ing.

  However, when the locking device is applied to maintain the retractable state of the retractable vehicle seat as in the technique described in Patent Document 1, the design is provided with a biasing means such as a spring because it is in the vehicle interior. Is not preferable.

  The present invention has been made in consideration of the above facts, and an object of the present invention is to propose a vehicle locking device that can appropriately perform a locking operation.

  In order to achieve the above object, the invention according to claim 1 is directed to locking the connecting member provided at either one of the predetermined part of the vehicle or the vehicle body and connecting the predetermined part to the vehicle body. A connecting means provided in any one of the above, a detecting means for detecting the entry of the connecting member into the connecting means, and when the detecting means detects the entry of the connecting member into the connecting means. Control means for controlling the connecting means to lock the connecting member, and estimating means for estimating that the connecting member is separated from the connecting means when the connecting member is unlocked by the connecting means. And when the estimating means estimates that the connecting member is separated from the connecting means, the connecting means is controlled to be in an initial state in which the connecting member can be locked. It is characterized in that it comprises a period state control means.

  According to the first aspect of the present invention, the connecting means locks the connecting member provided at either the predetermined part of the vehicle or the vehicle body. That is, the predetermined part can be fixed to the vehicle body by locking the connecting member by the connecting means. The connecting means is provided on the vehicle body when the connecting member is provided at a predetermined site, and is provided at the predetermined site when the connecting member is provided on the vehicle body.

  The detecting means detects the entry of the connecting member to the connecting means. As the detection means, for example, a limit switch, various optical switches, and the like can be applied.

  Then, the control means controls the connecting means so as to lock the connecting member when the detecting means detects that the connecting member has entered the connecting means.

  On the other hand, the estimating means estimates that the connecting member is separated from the connecting means when the connecting member is unlocked by the connecting means. For example, the estimation means includes a detection means for detecting the amount of movement of the moving means for moving the predetermined part as in the invention described in claim 2, and is more than a predetermined amount necessary for the connecting member to be separated from the connecting means. When the movement amount is detected by the detection means, it may be estimated that the connection member is separated from the connection means, or the lock by the connection means is released as in the invention of claim 3. When a predetermined time or more necessary for separating the connecting member from the connecting means has elapsed, it may be estimated that the connecting member has been separated from the connecting means, or as in the invention according to claim 4, A detecting unit that detects a moving amount of a moving unit that moves a predetermined part, and when the moving unit detects a moving amount greater than a predetermined amount necessary for the connecting member to be separated from the connecting unit; or That when the lock is connected member from the connecting means from being released has elapsed a predetermined time necessary for spacing, coupling member from the connecting means may be estimated and spaced.

  Then, in the initial position control means, when it is estimated that the connecting member is separated from the connecting means by the estimating means, the connecting means is controlled so as to be in an initial state where the connecting member can be locked. That is, since it is controlled to be in an initial lockable state after it is estimated that the connecting member is separated from the connecting means, the connecting means is prevented from returning to the initial state and locking the connecting member again. be able to. Therefore, the locking operation can be performed appropriately.

  As in the invention described in claim 5, the connecting means is either a vehicle seat or a vehicle body whose state can be changed between a seated state in which an occupant can be seated and a storage position stored in a predetermined position of the vehicle body. When the vehicle seat is in the retracted state, one that connects the vehicle seat to the vehicle body by driving the drive means may be applied. At this time, as in the invention described in claim 6, the vehicle seat rotates the seat back to a position where it overlaps the seat cushion, and rotates one side along a direction perpendicular to the rotation center axis of the rotation of the seat back. You may make it apply the thing which will be in a retracted state by rotating a seat cushion as a moving center.

  Further, the connecting means may be configured to retract and lock the connecting member as in the invention described in claim 7.

  Further, the connecting means includes a driving means for driving a lock member for locking the connecting member as in the invention described in claim 8, and the predetermined portion is connected to the vehicle body by driving the driving means. May be. In this case, the control means controls the driving means so as to lock the connecting member, and the initial state control means controls the driving means so as to be in the initial state.

  As described above, according to the present invention, since the connecting means is controlled to be in the initial state after it is estimated that the connecting member is separated from the connecting means, the connecting means returns to the initial state and the connecting member is again connected. It is possible to prevent the lock and prevent the lock operation from being performed appropriately.

  Hereinafter, an example of an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram showing a vehicle-mounted state of a retractable vehicle seat to which a retractable vehicle seat locking device according to an embodiment of the present invention is applied.

  The retractable vehicle seat 10 according to the embodiment of the present invention is applied as a seat (for example, a third seat) such as a rear portion of the vehicle, and is developed from a state in which it can be seated as shown in FIG. As shown to (C), it can be accommodated in the vehicle body side.

  As shown in FIG. 1B, the retractable vehicle seat 10 is stored after the seat back 12 is rotated to a position where it overlaps the seat cushion 14, and then the seat back 12 is moved as shown in FIG. The seat cushion 14 is rotated about one side along the direction perpendicular to the rotating central axis to be rotated and stored in the side of the vehicle body.

  FIG. 2 is a plan view showing the configuration of the retractable vehicle seat 10.

  As shown in FIGS. 2A to 2C, the retractable vehicle seat 10 has a lower end portion of the seat back 12 coupled to the seat cushion 14 via a reclining device 24, and the seat back 12 is connected to the seat cushion 14. It turns to the overlapping position and falls forward of the vehicle. At this time, the headrest 16 simultaneously rotates and falls forward of the vehicle, and the amount of protrusion of the headrest 16 toward the vehicle front is reduced in a state where the seat back 12 overlaps the seat cushion 14.

  The reclining device 24 includes an urging means (not shown) for urging the seat back 12 in the forward tilt direction with respect to the seat cushion 14, and a lock mechanism for holding the seat back 12 at an arbitrary tilt angle with respect to the seat cushion 14. When the seat back 12 is not loaded in the released state of the lock mechanism, the seat back 12 is tilted toward the seat cushion 14 by the urging force of the urging means. On the other hand, when a backward force exceeding the urging force of the urging means is applied to the seat back 12 in the unlocked state, the seat back 12 is inclined rearward with respect to the seat cushion 14.

  In addition, the retractable vehicle seat 10 is provided with a lift-up unit 18 that lifts the retractable vehicle seat 10 by rotating the retractable vehicle seat 10 around one side of the seat cushion 14 along the vehicle front-rear direction. The unit 18 lifts up the retractable vehicle seat 10 to the side of the vehicle body as shown in FIGS.

  On the opposite side of the seat cushion 14 from the lift-up unit 18 (vehicle center side), a floor lock 22 that engages with a lock striker 20 provided on the floor panel is provided, and the floor lock 22 and the lock striker 20 are connected to each other. The retractable vehicle seat 10 and the floor panel are fixed by engaging.

  Further, when the retractable vehicle seat 10 is lifted up to the side of the vehicle body by the lift-up unit 18, a striker 46 provided on the back surface of the seat back 12 and a dragger unit 60 provided on the side of the vehicle body are provided. The retractable vehicle seat 10 is fixed in a state of being accommodated by the dragger unit 60.

  The dragger unit 60 can use a mechanism such as a known trunk closer or back door closer, for example. As shown in FIG. 3, the dragger unit 60 includes a support bracket 64 fixed to the vehicle body, and the support bracket 64 has a notch 64 </ b> A that opens inward in the vehicle width direction. The notched portion 64A allows the latched portion 46A of the striker 46 to be retracted along the vehicle width direction.

  On the support bracket 64, a latch 66 is supported as a lock member so as to be rotatable around a support shaft 66A. The latch 66 is formed with a notch 66B that allows the latched portion 46A to move back and forth while oscillating around the support shaft 66A and displacing the notch 64A. The support bracket 64 also supports a crank mechanism 68 that converts the rotation of the dragger motor 62 into the swing of the latch 66 and transmits it. Thereby, in the dragger unit 60, the rotation axis 62A of the dragger motor 62 rotates in one direction (the direction of arrow D shown in FIG. 3), so that the latch 66 reciprocally swings, and the notch 66B and the notch 64A The overlapping position is displaced in the longitudinal direction of the notch 64A.

  That is, the dragger unit 60 prevents the latched portion 46A from being pulled out of the cutout portion 64A by inserting the latched portion 46A of the striker 46 into both of the cutout portions 64A and 66B. It is designed to be held on the car body. More specifically, as shown in FIG. 4A, the dragger unit 60 moves the rotation shaft 62A of the dragger motor 62 with the arrow D in a state where the latched portion 46A of the striker 46 is located at a position where it can be latched by the latch 66. When rotating in the direction, as shown in FIG. 4B, the latch 66 rotates in the direction of arrow E, and the latched portion 46A that has entered the notch 66B is pulled into the back of the notch 64A.

  As shown in FIG. 4 (B), when the latch 66 further rotates in the direction of arrow E from the half latch position, as shown in FIG. 4 (C), the full latch position substantially perpendicular to the notch 64A is obtained. When the latch 66 further rotates in the direction of arrow E, the latched portion 46A becomes the maximum retracted position located near the deepest portion of the notch portion 64A, as shown in FIG. When the maximum retracted position is reached, the latch 66 is rotated in the direction of the arrow F opposite to the direction of the arrow E by the rotation of the dragger motor 62 in the direction of the arrow D. The position shown in FIG. 4E where the latched portion 46A is slightly returned from the maximum retracted position to the opening side of the notch 64A by the slight rotation of 66 is the retracting operation completion position.

  Further, the dragger unit 60 rotates the rotation shaft 62A of the dragger motor 62 in the direction of the arrow D from the state in which the latch 66 is in the retracting operation completion position. As shown in FIG. 4G, the latched portion 46A is pushed out (released) from the opening side of the notch 64A, and as shown in FIG. It becomes possible to open from the notch 66B. When the latched portion 46A is separated from the notched portion 66B of the latch 66 by the operation of the lift-up unit 18, the rotation shaft 62A of the dragger motor 62 is slightly rotated in the direction of arrow D, and the latched portion shown in FIG. The portion 46A is returned to the latch standby position (initial position).

  FIG. 5 is a diagram for explaining a portion for detecting the rotational position of the dragger motor 62.

  As shown in FIG. 5A, the rotation axis 62 </ b> A of the dragger motor 62 is provided with a printed circuit board 32 having a contact shape 30 that can detect the rotation position of the dragger motor 62. The printed circuit board 32 also rotates with the rotation of the shaft 62A.

  Three contact points E, OPN, and CLS are provided at positions facing the printed circuit board 30. The contact point E is always in contact with the contact shape 30 of the printed circuit board 32, and the set OPN and the contact point CLS are connected to the printed circuit board 32. The contactor shape 30 is turned on and off, and the rotation position of the dragger motor 62, that is, the locked state can be detected from the on / off state of the contacts OPN and CLS.

  In addition, the dragger unit 60 is provided with a CTY switch 34 for detecting the entry of the striker 46 into the notch 66B. The CTY switch 34 is turned on and off in response to the swing of the latch 66, and the CTY switch 34 is turned off when the striker 46 enters the notch 66B and the latch 66 swings. Thereby, the approach of the striker 46 can be detected. In the present embodiment, a mechanical limit switch or the like is applied, but the present invention is not limited to this, and various switches such as an optical type can be applied.

  In this embodiment, each terminal is turned on / off as shown in FIG. 5B by the state of the dragger unit 60 (initial position, close start position, close completion position, open start position, as the dragger motor 62 rotates). ON / OFF is performed according to the open completion position.

  FIG. 6 is a block diagram showing the configuration of the control system of the retractable vehicle seat 10 according to the embodiment of the present invention.

  The retractable vehicle seat 10 according to the embodiment of the present invention is controlled by the seat storage ECU 40 to move the retractable vehicle seat 10 to the retracted position or to the deployed position (seatable position).

  The seat storage ECU 40 is connected to a switch 42 for instructing to store and unfold the retractable vehicle seat 10, and the passenger operates the switch 42 to store the retractable vehicle seat 10. The unfolding operation is controlled. For example, the switch 42 may be capable of performing operations such as an instruction to release the lock mechanism of the reclining device 24, a storage instruction, and a deployment instruction. The switch 42 is provided with an indicator such as a lamp and is output from the seat storage ECU 40. It may be lit or blinked by a switch indicator signal.

  In addition, a meter indicator 44 is connected to the seat storage ECU 40, and the occupant is notified by the meter indicator 44 such as a lamp of the operation of the retractable vehicle seat 10 or abnormal operation.

  Further, the seat storage ECU 40 includes a back latch motor 48 for releasing the locking mechanism provided in the above-described reclining device 24 for rotating the seat back 12 to a position overlapping the seat cushion 14, and a lock provided on the floor panel. A floor latch motor 50 that engages the striker 20 and the floor lock 22, a storage motor 52 that is provided in the lift-up unit 18 and lifts the seat cushion 14 to the side of the vehicle body, and the striker 46 and the dragger unit 60 are connected. A dragger motor 62 is connected.

  In the present embodiment, the seat storage ECU 40 drives the back latch motor 48 according to the instruction of the switch 42, thereby releasing the lock mechanism that restricts the rotation of the seat back 12 toward the seat cushion 14 side. The seat back 12 rotates and falls in a direction overlapping the seat cushion 14 by a reaction force of a biasing means such as a spring. At this time, the lock of the headrest 16 is also released at the same time using a wire or the like, so that the headrest 16 rotates forward and falls down.

  Then, the seat storage ECU 40 drives the storage motor 52 in a state where the headrest 16 is tilted and the seat back 12 is tilted, whereby the retractable vehicle seat 10 is lifted up to the side of the vehicle body and stored in the side of the vehicle body. When the position of the retractable vehicle seat 10 is reached, the dragger motor 62 is driven to connect and lock the striker 46 on the back surface of the seat back 12 of the retractable vehicle seat 10 and the dragger unit 60.

  In order to detect this series of operations, the seat storage ECU 40 includes a reclining position switch 54, a floor lock switch 56, a CTY switch 34, an OPN switch (terminal OPN and ground terminal E) 36, a CLS switch (terminal CLS and The ground terminal E) 38, the Hall IC 58, and the buzzer 70 are connected.

  The reclining position switch 54 is provided at the rotating portion of the seat back 12 and the seat cushion 14, detects the angle between the seat back 12 and the seat cushion 14, and outputs the detection result to the seat storage ECU 40.

  The floor lock switch 56 is provided in the floor lock 22, detects the engagement between the lock striker 20 provided on the floor panel and the floor lock 22, and outputs the detection result to the seat storage ECU 40.

  The CTY switch 34 detects the entry of the striker 46 into the notch 66B and outputs the detection result to the seat storage ECU 40.

  The OPN switch 36 and the CLS switch 38 detect the rotational position of the dragger motor 62, that is, the locked state, and output the detection result to the seat storage ECU 40.

  The Hall IC 58 detects the rotation of the storage motor 52 and outputs a detection pulse to the seat storage ECU 40.

  The buzzer 70 generates a warning sound when the retractable vehicle seat 10 is stored or unfolded according to an instruction from the seat storage ECU 40.

  Here, the operation of the retractable vehicle seat 10 under the control of the seat storage ECU 40 will be described.

  First, when the occupant's switch 42 is operated to store the retractable vehicle seat 10, the seat storage ECU 40 receives the storage signal of the switch 42 and controls the back latch motor 48 to lock the reclining device 24. Release the mechanism. As a result, the seat back 12 falls to the seat cushion 14 side by the urging force of the urging means.

  When the seat back 12 falls to the seat cushion 14 side, the state is detected by the reclining position switch 54 and a detection result is output to the seat storage ECU 40. The seat storage ECU 40 receives the detection result of the reclining position switch 54 and drives the floor latch motor 50. As a result, the engagement between the lock striker 20 and the floor lock 22 is released.

  When the engagement between the lock striker 20 and the floor lock 22 is released, the state is detected by the floor lock switch 56 and the detection result is output to the seat storage ECU 40. In response to the detection result of the floor lock switch 56, the seat storage ECU 40 generates a warning sound from the buzzer 70 and drives the storage motor 52. As a result, the retractable vehicle seat 10 is lifted up to the side of the vehicle body.

  When the retractable vehicle seat 10 is lifted to the side of the vehicle body, the striker 46 on the back of the seat back 12 is inserted into the notch 64A of the dragger unit 60, the CTY switch 34 is turned off, and the off signal is stored in the seat. It is output to the ECU 40. The seat storage ECU 40 receives the off signal of the CTY switch 34, drives the dragger motor 62, and stops the dragger motor 62 when the CLS switch 38 is turned on. As a result, the dragger unit 60 is locked.

  On the other hand, when the deployment of the retractable vehicle seat 10 is instructed by the occupant's switch 42 operation, the seat storage ECU 40 receives the deployment signal of the switch 42 and drives the dragger motor 62, and the OPN switch 36 is turned on. By the way, the dragger motor 62 is stopped. As a result, the dragger unit 60 is unlocked.

  When the dragger unit 60 is unlocked, the seat storage ECU 40 generates a buzzer 70 and drives the storage motor 52. As a result, the retractable vehicle seat 10 is lifted down to the seating position from the side of the vehicle body, the lock striker 20 and the floor lock 22 are engaged, and the floor lock switch 56 is turned on. Here, when the occupant wakes up the seatback 12, the seatback state is enabled.

  In addition, when the storage motor 52 is driven and a predetermined number of pulses is detected by the Hall IC 58, the seat storage ECU 40 drives the dragger motor 62 to move the dragger motor 62 to the initial position.

  By the way, since the dragger unit 60 of the present embodiment is applied to a trunk, a back door or the like, when the CTY switch 34 is turned off, the locking operation is started, and for example, a foreign object is inserted. When the CTY switch 34 is turned off, the dragger motor 62 is activated to draw in foreign matter.

  Therefore, in the present embodiment, the dragger motor 62 is driven after detecting whether or not the retractable vehicle seat 10 is to be stored. That is, when the retractable vehicle seat 10 is not stored, the driving of the dragger motor 62 is prohibited.

  In the present embodiment, whether or not the retractable vehicle seat 10 is to be stored is detected by detecting whether or not the floor lock switch 56 is turned off. Whether or not is detected. That is, when storage of the retractable vehicle seat 10 is instructed by the switch 42, the floor lock switch 56 is turned off until the dragger unit 60 is operated. It can be determined whether or not 10 is to be stored. In the present embodiment, the floor lock switch 56 detects whether or not the retractable vehicle seat 10 is about to be stored. However, the present invention is not limited to this. For example, a seating sensor or the like is provided on the seat cushion. When seating of a passenger is detected, it can be determined that the retractable vehicle seat 10 is not to be stored. Or you may make it detect whether it is going to store retractable vehicle seat 10 using other various sensors.

  Further, as described above, the dragger unit 60 of the present embodiment is in a state in which the latched portion 46A of the striker 46 can be opened from the notch 66B of the latch 66, and when the striker 46 is separated from the dragger unit 60, At this time, if the striker 46 is not separated from the dragger unit 60, the dragger motor 62 is driven and moved to the initial position, the CTY switch 34 is turned off, and the locking operation is performed again. It will start. Therefore, in the present embodiment, after the separation of the striker 46 from the dragger unit 60 is estimated, the dragger motor 62 is driven to return the dragger unit 60 to the initial position.

  More specifically, the estimation of the separation of the striker 46 from the dragger unit 60 is based on the Hall IC 58 that detects the rotation of the storage motor 52 based on whether the storage motor 62 is driven and the striker 46 is separated from the dragger unit 60. It is estimated by counting the number of pulses. In the present embodiment, when the Hall IC 58 detects a predetermined number of pulses (the number of pulses necessary to move away from the dragger unit 60 from the striker 46), the striker 46 is separated from the dragger unit 60. to decide. In the present embodiment, the separation of the striker 46 from the dragger unit 60 is estimated by detecting the number of pulses of the storage motor 52 by the Hall IC 58. However, the present invention is not limited to this. By detecting the time required for the striker 46 to move away from the dragger unit 60, the separation of the striker 46 from the dragger unit 60 may be estimated.

  Next, a process performed by the seat storage ECU 40 of the retractable vehicle seat 10 according to the embodiment of the present invention configured as described above will be described. FIGS. 7 and 8 are flowcharts showing an example of a flow of processing performed by the seat storage ECU 40 of the retractable vehicle seat 10 according to the embodiment of the present invention. FIG. FIG. 8 shows processing related to the dragger unit 60. Note that the flowchart shown in FIG. 7 is started when the switch 42 is operated, and the flowchart shown in FIG. 8 is described as starting when the power source of the battery mounted on the vehicle is connected.

  First, in step 80, it is determined whether or not an instruction to deploy the retractable vehicle seat 10 is given. This determination is made as to whether or not the switch 42 has been operated to instruct the deployment of the retractable vehicle seat. If the determination is affirmative, the routine proceeds to step 82; Since it is instructed to store 10, the process proceeds to step 92.

  In step 82, it is determined whether or not the dragger unit 60 has been unlocked. This determination waits until the OPN switch 36 is detected to be turned on in the processing related to the dragger unit 60 described later, and then proceeds to step 84. .

  In step 84, the storage motor 52 is actuated in the direction in which the retractable vehicle seat 10 is deployed, and the routine proceeds to step 86. The buzzer 70 is sounded in conjunction with the operation of the retractable motor 52 to notify the occupant of the unfolding operation of the retractable vehicle seat 10.

  In step 86, it is determined whether or not the switch 42 is turned off (the deployment instruction is canceled). If the determination is negative, the process proceeds to step 88, and if the determination is affirmative, the process proceeds to step 90 and stored. The motor 52 is stopped, the buzzer 70 is sounded for 10 seconds, a notification is given (warning) that the buzzer has stopped halfway, and the process is terminated. That is, in the present embodiment, the retracting operation of the retractable vehicle seat 10 is performed only while the switch 42 is being operated. However, the present invention is not limited to this, and the switch 42 instructs deployment. In such a case, the storage motor 52 may be stopped after completing a series of unfolding operations. In this case, it is preferable to provide a mechanism for detecting the pinching of an object or the like and stopping the storage motor 52.

  In step 88, it is determined whether or not the retractable vehicle seat 10 has been rotated to the deployed position. This determination determines whether or not the floor lock switch 56 is turned on. If the determination is negative, the process returns to step 86. If the determination is affirmative, the process proceeds to step 90, where the buzzer 70 is sounded and developed. Is notified to the occupant, and the storage motor 52 is stopped to end the series of processes.

  On the other hand, in step 92, it is determined whether or not the floor lock 22 has been released. This determination determines whether or not the floor lock switch 56 has been turned off, and waits until the determination is affirmed before proceeding to step 94.

  In step 94, the storage motor 52 is actuated in the direction in which the retractable vehicle seat 10 is stored, and the routine proceeds to step 94. Note that the buzzer 70 is sounded in conjunction with the operation of the storage motor 52 to notify the occupant of the storage operation of the retractable vehicle seat 10.

  In step 96, it is determined whether or not the switch 42 is turned off (the storage instruction is canceled). If the determination is negative, the process proceeds to step 98. If the determination is affirmative, the process proceeds to step 90 and stored. The motor 52 is stopped, the buzzer 70 is sounded for 10 seconds, and it is notified that the buzzer has stopped halfway, and the process is terminated. That is, in the present embodiment, the retracting operation of the retractable vehicle seat 10 is performed only while the switch 42 is being operated. However, the present invention is not limited to this, and the storage is instructed by the switch 42. In this case, the storage motor 52 may be stopped after a series of storage operations are completed. In this case, it is preferable to provide a mechanism for detecting the pinching of an object or the like and stopping the storage motor 52.

  In step 98, it is determined whether or not the retractable vehicle seat 10 has been rotated to the retracted position. The determination determines whether or not the CTY switch 34 is turned off. If the determination is negative, the process returns to step 96. If the determination is affirmative, the process proceeds to step 90, where the buzzer 70 is sounded and expanded. Notifying the occupant of the completion, the storage motor 52 is stopped, and the series of processes is completed.

  On the other hand, in the dragger unit 60, first, in step 100, an initialization process of the dragger motor 62 is performed. The initialization process of the dragger motor 62 is stopped by detecting the initial position (FIG. 4A) from the on / off state of each switch 42 by rotating the dragger motor 62 in the reverse direction, for example. In the present embodiment, the initialization process is performed by rotating the dragger motor 62 in the reverse direction, but the initialization process may be performed by rotating the dragger motor 62 forward.

  Next, at step 102, it is determined by the seat storage ECU 40 whether or not the CTY switch 34 is turned off. That is, it is determined whether or not the striker 46 is inserted into the dragger unit 60 and the CTY switch 34 is turned off. If the determination is affirmative, the process proceeds to step 104. If the determination is negative, the process proceeds to step 118. To do.

  In step 104, the seat storage ECU 40 determines whether or not the floor lock switch 56 is off. That is, it is determined whether or not the retractable vehicle seat 10 is to be stored. If the determination is negative, the process proceeds to step 106, and if the determination is affirmative, the process proceeds to step 112.

  In step 106, it is determined by the seat storage ECU 40 whether or not a predetermined time has elapsed. If the determination is negative, the process returns to step 104, and if the determination is positive, the process proceeds to step 108.

  In step 108, the warning lamp of the meter indicator 44 is turned on by the control of the seat storage ECU 40, and the process proceeds to step 110. That is, when the CTY switch 34 is turned off and the floor lock switch 56 is turned on, a foreign object may have entered the dragger unit 60, so that the occupant is warned by the meter indicator 44.

  In step 110, it is determined by the seat storage ECU 40 whether or not the vehicle has been restored. In this determination, the seat storage ECU 40 determines whether or not a predetermined return process has been performed, and waits until the determination is affirmed. When the determination is affirmed, the process returns to step 102 and the above-described processing is repeated. That is, even when the CTY switch 34 is turned off, when the retractable vehicle seat 10 is not stored, the operation of the dragger motor 62 is prohibited, so that the dragger unit 60 can be prevented from being drawn in. Even if the CTY switch 34 is turned off by an occupant's finger, the operation of the dragger motor 62 is prohibited, so that the occupant's finger is not pulled in.

  On the other hand, in step 112, the dragger motor 62 is operated by the control of the seat storage ECU 40, and the process proceeds to step 114.

  In step 114, the seat storage ECU 40 determines whether or not the lock completion position is reached. In this determination, it is determined whether or not the CLS switch 38 is turned on, and the process waits until the determination is affirmed and the process proceeds to step 116.

  In step 116, the dragger motor 62 is stopped by the control of the seat storage ECU 40, and the process proceeds to step 118.

  In step 118, the seat storage ECU 40 determines whether or not there is an unlock instruction. This determination is made by determining whether or not the deployment operation is instructed by operating the switch 42 by the occupant. If the determination is negative, the process returns to step 102 and the above-described processing is repeated. Goes to step 120.

  In step 120, the dragger motor 62 is operated by the control of the seat storage ECU 40, and the routine proceeds to step 122.

  In step 122, it is determined by the seat storage ECU 40 whether the unlocking is completed. In this determination, it is determined whether or not the OPN switch 36 is turned on. The process waits until the determination is affirmed, and the process proceeds to step 124.

  In step 124, the dragger motor 62 is stopped by the control of the seat storage ECU 40, and the process proceeds to step 126.

  In step 126, it is determined whether or not the striker 46 is separated from the dragger unit 60. This determination is made as to whether or not the retractable vehicle seat 10 has been lifted down by operating the switch 42 to drive the storage motor 18. More specifically, it is determined whether or not the number of pulses detected by the Hall IC 58 of the storage motor 52 has detected a predetermined number of pulses (the number of pulses necessary for the striker 46 to move away from the dragger unit 60). The process waits until the determination is affirmed and proceeds to step 128. That is, when the storage motor 52 is driven by a predetermined number of pulses, the striker 46 is separated from the dragger unit 60, so this is determined. The determination in step 126 is based on whether or not the number of pulses detected and output by the Hall IC 58 has exceeded a predetermined number, or a predetermined time (the time required for the striker 46 to move away from the dragger unit 60). ) It may be determined whether or not it has elapsed. Thereby, even when the Hall IC 58 is broken, the separation of the striker 46 from the dragger unit 60 can be estimated appropriately. Further, it may be determined whether or not the striker 46 is separated from the dragger unit 60 by determining only whether or not a predetermined time has elapsed.

  In step 128, the dragger motor 62 is operated by the control of the seat storage ECU 40, and the process proceeds to step 130. As described above, since it is determined in step 126 that the striker 46 is separated from the dragger unit 60, the operation of the dragger motor 62 to the initial position is started, so that the striker 46 is still inserted in the dragger unit 60. Thus, it is possible to prevent the dragger motor 62 from being operated and being locked again.

  In step 130, the seat storage ECU 40 determines whether or not the dragger motor 62 has reached the initial position. In this determination, it is determined whether or not the OPN switch 36 is turned on. The process waits until the determination is affirmed, and the routine proceeds to step 132.

  In step 132, the dragger motor 62 is stopped by the control of the seat storage ECU 40, and the process returns to step 102 and the above-described processing is repeated.

  As described above, in the present embodiment, if the floor lock switch 56 is not turned off even if a foreign object is inserted into the dragger unit 60, it is determined that the retractable vehicle seat 10 is not to be stored and the dragger motor 62 is Since the operation is prohibited, the dragger motor 62 does not operate and the finger is not caught in the dragger unit 60 even if the occupant accidentally inserts the finger and the CTY switch 34 is turned off. Therefore, it is possible to reliably prevent malfunction of the dragger unit 60 due to foreign matter.

  Further, in the present embodiment, after estimating that the striker 46 is separated from the dragger unit 60 by counting the number of pulses of the Hall IC 58, the latch 66 of the dragger unit 60 is moved to the initial position. Since the dragger motor 62 is driven, it is possible to prevent the dragger motor 62 from being operated and locked again while the striker 46 is still inserted in the dragger unit 60 (CTY switch 34 is off). Therefore, the locking operation can be performed appropriately.

  In the above embodiment, whether or not the retractable vehicle seat 10 is to be stored is detected based on the on / off state of the floor lock switch 56. However, whether or not the retractable vehicle seat is to be stored is detected. The detection of whether or not is not limited to this. For example, it is possible to detect whether or not the retractable vehicle seat is to be stored by providing a seating sensor or the like and detecting whether or not the occupant is not seated. Alternatively, the reclining position sensor 54 may detect whether or not the retractable vehicle seat is to be stored by detecting whether or not the seat back 12 is overlapped with the seat cushion 14. . When using a seating sensor, instead of determining whether or not the floor lock switch 56 is OFF in step 104, it is determined whether or not the occupant is not seated by the seating sensor, and the occupant is not seated. In the case where the reclining position sensor 56 is used, similarly, in step 104, it is determined whether or not the seat back 12 is overlapped with the seat cushion 14 by the reclining position sensor 56. Then, when the seat back 12 is in a state of being overlapped with the seat cushion 14, the process may proceed to step 112.

  Alternatively, whether or not the retractable vehicle seat 10 is to be stored by determining from the detection result of the Hall IC 58 whether or not the retractable vehicle seat 10 has been lifted up to the side of the vehicle body by driving the storage motor 18. It may be detected whether or not.

  Further, in the above-described embodiment, the retractable vehicle seat 10 is stored by lifting up to the side of the vehicle body. However, the present invention is not limited to this. For example, the seat back 12 of the vehicle seat 10 is seated. It may be applied to the storage of the retractable vehicle seat 10 by providing a rotation hinge in the vehicle width direction in the state of being tilted to the cushion 14 side, as shown in FIG. Similarly to the embodiment, the retractable vehicle seat 10 is lifted up to the side of the vehicle body (FIG. 9A), and then the retractable vehicle seat 10 is moved in the direction of arrow X in FIG. You may make it apply to what slides (vehicle back or front) (FIG.9 (B)) and locks to the dragger unit 60. FIG. In the case shown in FIG. 9, the estimation of the separation of the striker 46 from the dragger unit 60 can be estimated by detecting the sliding movement distance of the retractable vehicle seat 10 by the number of pulses of a motor, a sensor or the like. It is.

  Furthermore, in the above-described embodiment, an example in which the present invention is applied to the dragger unit 60 of the retractable vehicle seat 10 has been described. However, the present invention is not limited to this. For example, as shown in FIG. Thus, the present invention may be applied to the lock device 48 provided in the electric trunk that opens and closes the trunk lid 76. In this case, the estimation of the separation of the striker 77 from the locking device 48 can be estimated, for example, by detecting the movement of the actuator 74 or the like.

It is a perspective view which shows the vehicle mounting state of the retractable vehicle seat to which the locking device for retractable vehicle seat according to the embodiment of the present invention is applied. It is a top view which shows the structure of a retractable vehicle seat. It is a figure which shows the structure of a dragger unit. It is a figure for demonstrating operation | movement of a dragger unit. It is a figure for demonstrating the part which detects the rotation position of a dragger motor. It is a block diagram which shows the structure of the control system of the retractable vehicle seat concerning embodiment of this invention. It is a flowchart which shows an example of the flow of the process regarding expansion | deployment and storage of the vehicle seat performed by seat storage ECU of the retractable vehicle seat concerning embodiment of this invention. It is a flowchart which shows an example of the flow of the process regarding the dragger unit performed by seat storage ECU of the retractable vehicle seat concerning embodiment of this invention. It is a figure which shows the other structure of a retractable vehicle seat. It is a figure which shows schematic structure of an electrically driven trunk.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Retractable vehicle seat 12 Seat back 14 Seat cushion 18 Lift-up unit 34 CTY switch 40 Seat storage ECU
46, 77 striker 52 retractable motor 58 Hall IC
60 Dragger unit 62 Dragger motor
66 Latch 74 Actuator 76 Trunk lid 78 Vehicle locking device

Claims (8)

A connecting member provided on either the predetermined part or the vehicle body for locking the connecting member provided on either the predetermined part of the vehicle or the vehicle body and connecting the predetermined part to the vehicle body;
Detecting means for detecting entry into the connecting member to the connecting means;
Control means for controlling the connecting means so as to lock the connecting member when the detecting means detects that the connecting member has entered the connecting means;
Estimating means for estimating that the connecting member is separated from the connecting means when the connecting member is unlocked by the connecting means;
An initial state control means for controlling the connecting means so as to be in an initial state in which the connecting member can be locked when the estimating means estimates that the connecting member is separated from the connecting means;
A vehicle locking device comprising:   The estimation unit includes a detection unit that detects a movement amount of a moving unit that moves the predetermined part, and the detection unit detects a movement amount that is greater than or equal to a predetermined amount necessary for the connection member to be separated from the connection unit. The vehicle locking device according to claim 1, wherein when detected, the connecting member is estimated to be separated from the connecting means.   The estimation means estimates that the connection member has been separated from the connection means when a predetermined time or more required for the connection member to be separated from the connection means has elapsed since the lock by the connection connection means was released. The vehicle locking device according to claim 1, wherein:   The estimation unit includes a detection unit that detects a movement amount of a moving unit that moves the predetermined portion, and the movement amount that is greater than a predetermined amount necessary for the connection member to be separated from the connection unit is the detection unit. Or when the connecting member is separated from the connecting means when a predetermined time or more necessary for the connecting member to be separated from the connecting means has elapsed since the lock by the connecting means was released. The vehicle locking device according to claim 1, wherein the vehicle locking device is estimated.   The connecting means is provided in either the vehicle seat or the vehicle body that can be changed between a seating state in which an occupant can sit and a storage position stored in a predetermined position of the vehicle body, and the vehicle seat is stored in the storage device. The vehicle seat is connected to the vehicle body by locking the connecting member provided on either the vehicle seat or the vehicle body in the state. The vehicle locking device according to Item.   The vehicle seat is rotated by rotating the seat back to a position overlapping the seat cushion, and rotating the seat cushion around one side along the direction perpendicular to the rotation center axis of the seat back. The vehicle locking device according to claim 5, wherein the vehicle locking device is in a retracted state.   The locking device for a retractable vehicle seat according to any one of claims 1 to 6, wherein the connecting means pulls and locks the connecting member.   The connection means includes drive means for driving a lock member for locking the connection member, and the predetermined means is connected to the vehicle body by driving the drive means, and the control means locks the connection member. The vehicle according to any one of claims 1 to 7, wherein the driving unit is controlled so that the initial state control unit controls the driving unit to be in the initial state. Locking device.

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