JP5648580B2 - Vehicle seat device - Google Patents

Description

  The present invention relates to a vehicle seat device.

  Conventionally, as a vehicle seat device, what was indicated, for example in patent documents 1 is known. The vehicle seat device includes a lock mechanism that restricts sliding movement of the seat in the vehicle front-rear direction, and a drive source (actuator) for releasing the restriction of the lock mechanism based on an operation of an operation switch. This drive source (actuator) is provided so as to release the restriction of the lock mechanism by pulling the wire connected to the lock mechanism when current is supplied from the controller based on the operation of the operation switch. When it disappears, the lock mechanism is regulated by the biasing force of the spring.

JP 2005-206154 A

  However, in the vehicle seat device as described above, when the operation switch is operated and the state is maintained, for example, even if the situation of the vehicle changes to a situation where the sliding movement of the seat is not preferable, the sliding movement of the seat by the lock mechanism is prevented. There is a possibility that the state where the restriction is released is held and the sheet slides.

  The present invention has been made to solve the above-described problems, and its object is to promptly perform the regulation by the lock mechanism regardless of the operation of the operation switch when the situation of the vehicle changes or the like. It is providing the vehicle seat apparatus which can be fixed.

In order to solve the above problem, in the invention according to claim 1, a lock mechanism for restricting the sliding movement of the seat, and a drive source for restricting and releasing the lock mechanism based on the operation of the operation switch, When the operation switch is operated to cancel the restriction by the lock mechanism, and when seating on the seat is detected, the vehicle seat device includes the operation switch regardless of the operation of the operation switch. The driving source is controlled so as to be regulated by the lock mechanism, and when the regulation by the lock mechanism is released based on the operation of the operation switch, a preset forced regulation other than the operation of the operation switch is set. A control unit that controls the drive source so as to perform regulation by the lock mechanism regardless of operation of the operation switch when the condition is satisfied is provided. The the gist.

  According to this configuration, when the control unit releases the restriction by the lock mechanism based on the operation of the operation switch, the operation of the operation switch is satisfied when a preset forced restriction condition other than the operation of the operation switch is satisfied. Regardless, the drive source is controlled so that the lock mechanism regulates. Therefore, for example, when the condition of the vehicle is changed while the restriction by the lock mechanism is released, the seat can be fixed by quickly performing the restriction by the lock mechanism regardless of the operation of the operation switch.

According to a third aspect of the present invention, in the vehicle seat device according to the first or second aspect , the forcible restriction condition is when a vehicle collision is detected or when there is a possibility of a vehicle collision. The gist is to include urgent conditions to be met.

  According to the configuration, the forced regulation condition includes an emergency condition that is satisfied when a vehicle collision is detected or when it is determined that there is a possibility of a vehicle collision. It is possible to fix the sheet by performing the regulation.

According to a fourth aspect of the present invention, in the vehicle seat device according to the third aspect, when the emergency condition is satisfied, the control unit is configured so that the restriction by the lock mechanism is performed faster than usual. The gist is to control.

  According to this configuration, when the emergency condition is satisfied, the drive source is controlled so that the regulation by the lock mechanism is performed faster than usual. Can be fixed.

According to a second aspect of the present invention, there is provided a vehicle seat device including a lock mechanism that restricts the sliding movement of the seat, and a drive source for restricting and releasing the lock mechanism based on an operation of an operation switch. When the restriction by the lock mechanism is released based on the operation of the operation switch, the lock is applied regardless of the operation of the operation switch if a preset forced restriction condition other than the operation of the operation switch is satisfied. A control unit that controls the drive source so as to perform regulation by a mechanism, and the forcible regulation condition is satisfied when a preset time elapses after the regulation by the lock mechanism is released in a state where the vehicle speed is not zero. Including the mandatory time-lapse regulation conditions.
According to this configuration, when the control unit releases the restriction by the lock mechanism based on the operation of the operation switch, the operation of the operation switch is satisfied when a preset forced restriction condition other than the operation of the operation switch is satisfied. Regardless, the drive source is controlled so that the lock mechanism regulates. Therefore, for example, when the condition of the vehicle is changed while the restriction by the lock mechanism is released, the seat can be fixed by quickly performing the restriction by the lock mechanism regardless of the operation of the operation switch.

  According to the same configuration, the forced regulation condition includes a time lapse mandatory regulation condition that is satisfied when a preset time has elapsed after the regulation by the lock mechanism is released in a state where the vehicle speed is not zero, so the vehicle speed is not zero. When a preset time elapses in the state, the sheet can be fixed by restricting the lock mechanism.

  According to a fifth aspect of the present invention, in the vehicle seat device according to any one of the first to fourth aspects, when the control unit satisfies the forcible restriction condition, the control unit activates the notification means to a notification state. The gist is to inform the effect.

  According to the configuration, when the compulsory restriction condition is satisfied, the notification unit is activated in the notification state to notify that effect. Therefore, the passenger or the like can easily know that the compulsory restriction conditions are satisfied.

  ADVANTAGE OF THE INVENTION According to this invention, when the condition of a vehicle changes, the vehicle seat apparatus which can perform regulation by a lock mechanism quickly and can fix a seat irrespective of operation of an operation switch can be provided.

The block diagram for demonstrating the vehicle seat apparatus of this Embodiment. The flowchart for demonstrating the process of ECU of this Embodiment. The flowchart for demonstrating the process of ECU of this Embodiment. The flowchart for demonstrating the process of ECU of this Embodiment. The flowchart for demonstrating the process of ECU of this Embodiment. The flowchart for demonstrating the process of ECU of another example. The flowchart for demonstrating the process of ECU of another example. The flowchart for demonstrating the process of ECU of another example. The flowchart for demonstrating the process of ECU of another example. The flowchart for demonstrating the process of ECU of another example. The flowchart for demonstrating the process of ECU of another example. The flowchart for demonstrating the process of ECU of another example.

  Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. As shown in FIG. 1, the seat 1 includes a seat cushion 2 that forms a seating surface, and a seat back 3 that is supported to be tiltable at the rear end portion of the seat cushion 2.

  The seat 1 is provided with a lock mechanism 4 for restricting the sliding movement of the seat 1 and a motor M as a driving source for restricting and releasing the lock mechanism 4. The seat 1 of the present embodiment is provided so as to be slidable along a lower rail (not shown) that is fixed to the vehicle floor and extends in the vehicle front-rear direction, and the lock mechanism 4 is for restricting the sliding movement. The lock mechanism 4 is a known mechanism. Specifically, the lock mechanism 4 slides by inserting lock claws provided on the seat 1 side into any one of a plurality of lock holes formed in the lower rail. It restricts movement. The motor M has an output portion connected to the lock mechanism 4 and has a self-binding force that the output portion cannot move in a non-energized state, and the output portion is regulated by the lock mechanism 4 according to the energization direction. It can be driven in two directions: a forward direction which is a releasing side and a reverse direction which is a restricting side. Further, the motor M is provided with a rotation sensor S that can detect the number of rotations of its own rotation shaft that is drivingly connected to the output unit.

  Further, the sheet 1 includes, for example, a release limit switch 5 serving as a release detection unit that detects that the restriction by the lock mechanism 4 is released by contact / non-contact with a lock claw or a part of the output unit, A restriction limit switch 6 is provided as restriction detection means for detecting that restriction by the lock mechanism 4 is being performed.

  Further, the seat 1 is provided with an ECU 7 as a control unit for controlling the motor M, and a side switch 8 and a back switch 9 as operation switches for operating restriction and release by the lock mechanism 4. ing. The side switch 8 is disposed on the side surface of the seat cushion 2, and the back switch 9 is disposed on the back surface of the seat back 3. The side switch 8 and the back switch 9 keep the released state in the energized (pressed) state, and when they are not energized (pressed), they automatically return to the restricted state. This is a set of automatic return type push button operation switches. The seat 1 is provided with a seating sensor 10 that can detect whether or not a passenger is seated.

Next, the electrical configuration of the vehicle seat device of the present embodiment will be described.
As shown in FIG. 1, the ECU 7 is electrically connected to the motor M (including the rotation sensor S), the release limit switch 5, the restriction limit switch 6, the side switch 8, the rear switch 9, and the seating sensor 10. It is connected to the. The ECU 7 is connected to a vehicle speed sensor 11, a collision detection sensor 12, a collision detection sensor 13, and a notification means 14 via an in-vehicle network CAN (controller area network) or a module (not shown). The collision detection sensor 12 is, for example, an acceleration sensor that can detect that a vehicle has collided, and the collision detection sensor 13 can detect, for example, a distance from a subsequent vehicle and can collide (reject). It is a rear radar that can detect that there is high (high). The notification means 14 is an indicator including a car navigation display, a warning lamp, or the like that enables visual notification, a speaker that enables auditory notification, or the like. The ECU 7 is further connected to an ignition sensor 15, a door courtesy switch 16, and the like via an in-vehicle network CAN (controller area network) or a module (not shown).

The ECU 7 controls energization of the motor M based on the operation of the operation switches (the side switch 8 and the back switch 9).
For example, when the side switch 8 is pushed to release the restriction by the lock mechanism 4, the ECU 7 starts the processing shown in FIG. 2 and operates other than the operation of the operation switches (the side switch 8 and the back switch 9). The motor M is controlled so as to maintain the state in which the lock mechanism 4 restricts until the preset release condition is satisfied.

  Specifically, the release condition of the present embodiment is a vehicle speed release condition that is satisfied when the vehicle speed is 0 when the operation switches (side switch 8 and back switch 9) are operated. That is, in step S11, the ECU 7 determines whether or not the vehicle speed detected by the vehicle speed sensor 11 is 0. If the vehicle speed is 0, the ECU 7 proceeds to step S12. If the vehicle speed detected by the vehicle speed sensor 11 is not 0, that is, the vehicle is running, step S11 is repeated.

In step S12, the ECU 7 starts energization of the motor M so that the output unit is driven in the positive direction on the side where the restriction by the lock mechanism 4 is released, and the process proceeds to step S13.
In step S13, the ECU 7 determines whether or not the release limit switch 5 detects that the restriction by the lock mechanism 4 has been released. When it is detected that the release has been released, the ECU 7 proceeds to step S14. Stop energization of the motor M. If it is not detected that the release has been made, the process proceeds to step S15.

  In step S15, the ECU 7 determines whether a preset time (for example, 3 seconds) has elapsed since the start of energization. If the preset time (for example, 3 seconds) has not elapsed, the ECU 7 Return to S13. That is, the ECU 7 releases the restriction by the release limit switch 5 within a range in which a preset time (for example, 3 seconds) does not elapse when releasing the restriction based on the operation of the operation switches (the side switch 8 and the back switch 9). Energization for driving the output unit in the forward direction is performed on the motor M until the detection is detected, and energization to the motor M is stopped when the release is detected. The time set in advance in step S15 (for example, 3 seconds) is a time when it is detected that the restriction has been released first by the release limit switch 5 without passing if the operation is performed normally. This is the time that elapses when some failure occurs in the power transmission path or the like.

In step S15, the ECU 7 proceeds to step S16 when a preset time (for example, 3 seconds) elapses.
In step S16, the ECU 7 stops energization of the motor M, operates the notification means 14 to the notification state, notifies the fact (for example, that the release has not been performed normally), and causes step S17 to Transition. That is, the ECU 7 stops energization of the motor M when a preset forced stop condition other than detection by the release limit switch 5 or the regulation limit switch 6 is satisfied while the motor M is energized. Yes, the forced stop condition of the present embodiment is a time lapse forced stop condition that is satisfied when a preset time (for example, 3 seconds) elapses.

  In step S17, the ECU 7 determines whether or not the forced stop count value is “3”. If not, the ECU 7 proceeds to step S18. In step S18, the ECU 7 increments the forced stop count value (initial value is “0”) by 1 (+1), and returns to step S12. If the forced stop count value is “3” in step S17, the process proceeds to step S14, and the state where the energization to the motor M is stopped is held. That is, the ECU 7 stops the energization of the motor M when a preset time (for example, 3 seconds) elapses without the release being detected by the release limit switch 5, and then performs retry control for energizing the motor M again. , A preset number of times (three times in this example).

  Further, for example, when the side switch 8 is pushed to release the restriction by the lock mechanism 4, the ECU 7 starts the process shown in FIG. 3 in parallel with the process shown in FIG. In step S22, the operation of other operation switches (other than the operated side switch 8), that is, the rear switch 9, is invalidated, and the process proceeds to step S22.

  In step S22, the ECU 7 determines whether or not a preset time (for example, 3 minutes) has elapsed. When the preset time (for example, 3 minutes) has elapsed, the ECU 7 proceeds to step S23, and other operation switches. That is, the operation of the back switch 9 is made effective. If the preset time (for example, 3 minutes) has not elapsed, step S22 is repeated. In the present embodiment, the time end condition that is satisfied when a preset time (for example, 3 minutes) elapses is set as a priority end condition (a condition for ending priority on the previously operated operation switch). ing. That is, the ECU 7 starts the control of the motor M based on the operation of the operation switch (side switch 8) that has been operated first, and then operates until another time switch (priority end condition) is satisfied. The operation of (rear switch 9) is invalidated.

Further, when it is detected that the restriction is released in step S13 (see FIG. 2), the ECU 7 starts the process shown in FIG. 4 in parallel with the process in step S14.
As shown in FIG. 4, in step S31, the ECU 7 determines whether or not the collision detection sensor 12 and the collision detection sensor 13 have detected a vehicle collision or a possibility of a vehicle collision, If a vehicle collision is detected or it is determined that there is a possibility of a vehicle collision, the process proceeds to step S32. If it is determined that no vehicle collision has been detected and there is no possibility of a vehicle collision, step S31 is repeated.

  In step S <b> 32, the ECU 7 energizes the motor M so that the output unit is driven in the reverse direction, which is the side where the lock mechanism 4 is regulated, performs regulation by the lock mechanism 4, and informs the notifying means 14. To that effect (for example, the restriction by the lock mechanism 4 for an emergency state). That is, when the restriction by the lock mechanism 4 is released based on the operation of the operation switches (the side switch 8 and the back switch 9), the ECU 7 satisfies a preset forced restriction condition other than the operation of the operation switch. The motor M is controlled so as to be regulated by the lock mechanism 4 regardless of the operation of the operation switch. In the present embodiment, the forcible restriction condition is an emergency condition that is satisfied when a vehicle collision is detected or when it is determined that there is a possibility of a vehicle collision.

  Next, when the state is shifted to the step S14, the ECU 7 starts the processing shown in FIG. 5 when the hand is released from the side switch 8 so as to be controlled by the lock mechanism 4 and the ECU 7 starts the processing shown in FIG. The motor M is controlled so as to hold the state where the restriction by the lock mechanism 4 is released until a preset restriction condition is satisfied.

  Specifically, the restriction condition of the present embodiment is a time passage restriction condition that is satisfied when a preset time (for example, 10 seconds) has elapsed since the operation switches (the side switch 8 and the back switch 9) are operated. ing. That is, in step S41, the ECU 7 determines whether or not a preset time (for example, 10 seconds) has elapsed since the operation switches (side switch 8 and back switch 9) were operated (after the automatic return). If the preset time (for example, 10 seconds) has not elapsed, the process proceeds to step S42. In step S42, the ECU 7 operates the notification means 14 to the notification state to notify the fact (for example, that the state is still released), and returns to step S41.

The ECU 7 proceeds to step S43 when a preset time (for example, 10 seconds) has elapsed in step S41.
In step S43, the ECU 7 puts the notification unit 14 into a non-notification state (for example, terminates the notification that the released state is still maintained), and the output unit regulates the lock mechanism 4. Energization of the motor M is started so as to drive in the reverse direction, and the process proceeds to step S44.

  In step S44, the ECU 7 determines whether or not the restriction by the lock mechanism 4 is detected by the restriction limit switch 6. When the restriction is detected, the ECU 7 proceeds to step S45. Stop energization of the motor M. On the other hand, if it is not detected that the restriction has been detected, the process proceeds to step S46.

  In step S46, the ECU 7 determines whether or not a preset time (for example, 3 seconds) has elapsed since the start of energization. If the preset time (for example, 3 seconds) has not elapsed, the ECU 7 Return to S44. That is, when the ECU 7 performs the restriction based on the operation of the operation switches (the side switch 8 and the back switch 9), the restriction is performed by the restriction limit switch 6 within a range in which a preset time (for example, 3 seconds) does not elapse. Energization is performed to drive the output unit in the reverse direction to the motor M until it is detected, and energization to the motor M is stopped when the regulation is detected. Note that the time set in advance in step S46 (for example, 3 seconds) is the time when it is detected that the restriction is first performed by the restriction limit switch 6 without passing if it operates normally. This is the time that elapses when some failure occurs in the power transmission path or the like.

In step S46, the ECU 7 proceeds to step S47 when a preset time (for example, 3 seconds) elapses.
In step S47, the ECU 7 stops energization of the motor M, operates the notification means 14 to the notification state, notifies the fact (for example, that regulation is not normally performed), and causes step S48 to proceed. Transition.

  In step S48, the ECU 7 determines whether or not the forced stop count value is “3”. If it is not “3”, the ECU 7 proceeds to step S49. In step S49, the ECU 7 increments the forced stop count value (initial value is “0”) by 1 (+1), and returns to step S43. In step S48, if the forced stop count value is "3", the process proceeds to step S45, and the state where the energization to the motor M is stopped is held. That is, the ECU 7 stops the energization of the motor M when a preset time (for example, 3 seconds) elapses without the restriction being detected by the restriction limit switch 6, and then performs retry control for energizing the motor M again. , A preset number of times (three times in this example).

Next, the operation of the vehicle seat device configured as described above will be described.
For example, when the side switch 8 is pushed to release the restriction by the lock mechanism 4, the restriction by the lock mechanism 4 is not released during traveling. When the vehicle speed is 0, that is, when the vehicle is stopped, energization to the motor M is started to release the restriction. At this time, the operation of other operation switches (other than the operated side switch 8), that is, the operation of the rear switch 9, is invalidated for a preset time (eg, 3 minutes).

  When the release limit switch 5 detects that the restriction by the lock mechanism 4 has been released, the energization of the motor M is stopped. Further, after it is detected that the restriction is released, if it is determined by the collision detection sensor 12 and the collision detection sensor 13 that a vehicle collision is detected or there is a possibility of a vehicle collision, the restriction is performed. The motor M is energized and regulated by the lock mechanism 4 and is notified by the notification means 14. In addition, when it is not detected that the restriction is released by the release limit switch 5 and a preset time (for example, 3 seconds) has elapsed since the start of energization, the energization to the motor M is stopped, and then the motor is again activated. Retry control for energizing M is performed a preset number of times (three times in this example).

  Further, when the hand is released from the side switch 8 in a state where the restriction by the lock mechanism 4 is released and the energization to the motor M is stopped, the side switch 8 is automatically restored, and then a preset time (for example, The state where the restriction is released is maintained until 10 seconds), and the notification means 14 notifies the fact. Then, when a preset time (for example, 10 seconds) elapses, energization of the motor M is started to the side that performs the regulation.

  When the restriction limit switch 6 detects that the restriction by the lock mechanism 4 has been performed, the energization of the motor M is stopped. In addition, when the restriction limit switch 6 does not detect that the regulation has been performed and a preset time (for example, 3 seconds) has elapsed since the start of energization, the energization of the motor M is stopped, and then the motor is again activated. Retry control for energizing M is performed a preset number of times (three times in this example).

Next, the characteristic effects of the above embodiment will be described below.
(1) When the restriction by the lock mechanism 4 is released by the ECU 7 based on the operation of the operation switches (the side switch 8 and the back switch 9), preset forcible restriction conditions other than the operation of the operation switch are satisfied. When this is done, the motor M is controlled so that the lock mechanism 4 is regulated regardless of the operation of the operation switch. Specifically, in the present embodiment, the compulsory restriction condition is an emergency condition that is satisfied when a vehicle collision is detected or when it is determined that there is a possibility of a vehicle collision. Sometimes, the sheet 1 can be fixed by quickly regulating the lock mechanism 4.

  (2) When the compulsory restriction condition (emergency condition) is satisfied, the notification means 14 is activated to notify the fact. Therefore, the passengers can easily know that the compulsory restriction condition (emergency condition) is satisfied.

  (3) When the ECU 7 cancels the restriction by the lock mechanism 4 based on the operation of the operation switches (the side switch 8 and the back switch 9), the output unit is connected to the motor M until the release limit switch 5 detects the release. Is energized to drive the motor in the positive direction (the side to release the restriction), and when the release is detected, the energization to the motor M is stopped. Since the motor M has a self-binding force that does not move in the non-energized state, the electric current is maintained while the restriction by the lock mechanism 4 is released even if the operation for releasing the restriction of the operation switch is continued. Is interrupted. Further, when the ECU 7 performs the regulation based on the operation of the operation switch, the motor M is energized to drive the output unit in the reverse direction (regulating side) until the regulation is detected by the regulation limit switch 6. At the same time, when the regulation is detected, the power supply to the motor M is stopped. Therefore, the flow of current is interrupted after the regulation by the lock mechanism 4 is performed. As a result, it is possible to prevent the current from continuing to flow through the motor M, to improve the durability of the motor M compared to the case where the current continues to flow, and to reduce the power consumption. Can do.

  (4) When the ECU 7 is energized to the motor M, the energization to the motor M is stopped when a preset forced stop condition other than the detection by the release limit switch 5 or the regulation limit switch 6 is satisfied. . Specifically, in the present embodiment, the forced stop condition is a time lapse forced stop condition that is satisfied when a preset time (for example, 3 seconds) elapses. For example, the release limit switch 5 or the restriction limit Even if some failure occurs in the switch 6, it is possible to prevent the current from continuing to flow through the motor M when a preset time (for example, 3 seconds) elapses.

  (5) When the forced stop condition (time lapse forced stop condition) is satisfied, the ECU 7 stops the energization of the motor M, and then the retry control for energizing the motor M again is set a predetermined number of times (this embodiment) 3 times in the form). In this case, since there is a case where it can be eliminated by retry control in the case where a light mechanical catch has occurred, for example, the possibility of recovering normal driving can be increased.

  (6) When the forced stop condition (time lapse forced stop condition) is satisfied, the notification means 14 is activated in the notification state by the ECU 7 to notify that effect. Therefore, the passengers can easily know that the forced stop condition (time lapse forced stop condition) is satisfied.

  (7) When the ECU 7 performs the restriction by the lock mechanism 4 based on the operation of the operation switches (the side switch 8 and the back switch 9), the lock mechanism 4 is set until a preset restriction condition other than the operation of the operation switch is satisfied. The motor M is controlled so that the state in which the restriction by is released is maintained. Specifically, in the present embodiment, the restriction condition is a time passage restriction condition that is satisfied when a preset time (for example, 10 seconds) has elapsed since the operation switch was operated. The state where the restriction by the lock mechanism 4 is released is maintained until (for example, 10 seconds) elapses. Therefore, for example, even when the operation switch is not operated, the seat 1 can be freely moved until a preset time elapses, and convenience can be improved.

  (8) The operation switches (the side switch 8 and the back switch 9) keep the released state in the energized (pressed) state, and release the hand when the energized (not pressed) state is maintained. And) an automatic return type push button operation switch that automatically returns to a regulated state. Therefore, even after releasing the operation switch, the seat 1 can be moved freely until the regulation condition is satisfied, and convenience can be improved.

  (9) The operation switches (the side switch 8 and the back switch 9) include a back switch 9 disposed on the back of the seat back 3. Therefore, for example, it is possible to move the seat 1 freely until the regulation condition is satisfied even after the passenger in the seat behind the seat back 3 urges (presses) the rear switch and releases the hand. Therefore, it is possible to easily go out of the vehicle through the front vehicle door.

  (10) When performing the regulation by the lock mechanism 4 based on the operation of the operation switch, the notification means 14 is operated to the notification state until the restriction condition is satisfied by the ECU 7 (for example, the state that has been released yet) Is held). Therefore, the passenger can easily know that the state where the restriction by the lock mechanism 4 is released is maintained.

  (11) When the ECU 7 releases the restriction by the lock mechanism 4 based on the operation of the operation switches (the side switch 8 and the back switch 9), the ECU 7 is locked until a preset release condition other than the operation of the operation switch is satisfied. The motor M is controlled so that the state in which the restriction by the mechanism 4 is performed is maintained. Specifically, in the present embodiment, the release condition is a vehicle speed release condition that is satisfied when the vehicle speed is 0 when the operation switch is operated. Therefore, until the vehicle speed becomes 0, that is, while the vehicle is traveling. The state in which the restriction by the lock mechanism 4 is performed is maintained. Therefore, for example, it is possible to prevent the seat 1 from sliding unexpectedly due to the behavior of the vehicle.

  (12) The motor M is controlled by the ECU 7 based on the operation of the operation switch (for example, the side switch 8) that has been operated first, and then another operation switch (for example, the rear switch 9) until the priority termination condition is satisfied. Is disabled. Therefore, priority is given to the operation of the operation switch on the side that has been operated first, and for example, it is possible to prevent an abnormal operation from being performed by operating another operation switch.

  (13) Since the priority end condition includes a time end condition that is satisfied when a preset time (for example, 3 minutes) has elapsed, the other end of the operation switch is set until the preset time (for example, 3 minutes) has elapsed. The operation is invalidated. Therefore, for example, the operation of the operation switch on the side that has been operated first can be prevented from performing an abnormal operation, and a state in which the restriction is canceled due to some abnormality such as sticking of the operation switch in advance can be prevented. When the set time (for example, 3 minutes) is exceeded, the lock mechanism 4 can be regulated by operating other operation switches.

The above embodiment may be modified as follows.
-The cancellation | release conditions (refer FIG. 2, step S11) of the said embodiment may be changed into other cancellation | release conditions. For example, the release condition may be a seat release condition that is satisfied when no passenger is seated on the seat 1 when the rear switch 9 is operated (see FIG. 6).

  That is, when the operation switch (side switch 8 or back switch 9) is pushed to release the restriction by the lock mechanism 4, the ECU 7 operates the operation switch operated in step S51 as shown in FIG. Is not the rear switch 9, and if it is not the rear switch 9 (the side switch 8), the process proceeds to step S12 (refer to FIG. 2 hereinafter). If the operated switch is the back switch 9, the process proceeds to step S52. In step S52, the ECU 7 determines whether or not a passenger is seated on the seat 1 based on the information detected by the seating sensor 10, and if not, the step S12 (hereinafter, FIG. 2) is performed. To see). If seated, the process returns to step S51.

  In this way, even if the back switch 9 is operated, the state in which the restriction by the lock mechanism 4 is performed is maintained until no passenger is seated on the seat 1. Therefore, for example, it is possible to prevent the seat 1 from sliding unexpectedly (to the seated passenger) by operating the back switch 9 from behind.

The regulation condition of the above embodiment (see step S41 in FIG. 5) may be changed to another regulation condition.
For example, the restriction condition may be an ignition restriction condition that is satisfied when the ignition is turned on if the ignition is turned off when the operation switch is operated (see FIG. 7).

  That is, when the restriction by the lock mechanism 4 is released and the energization of the motor M is stopped, when the hand is released from the side switch 8 (when the side switch 8 is automatically restored), the ECU 7 performs an ignition in step S61. Based on the information detected by the sensor 15, it is determined whether or not the ignition is off (on). If it is off, the process proceeds to step S42. In step S42, the ECU 7 activates the notification unit 14 to the notification state to notify the fact (for example, that the released state is still maintained), and returns to step S61. If the ignition is on in step S61, the ECU 7 proceeds to step S43 (refer to FIG. 5 hereinafter).

  In this way, even when the side switch 8 is released, the state where the restriction by the lock mechanism 4 is released is maintained until the ignition is turned on. Therefore, for example, even when the operation switch is not operated, the seat 1 can be freely moved until the ignition is turned on, and convenience can be improved.

In addition, for example, the regulation condition may be a vehicle speed regulation condition that is satisfied when the vehicle speed is zero when the operation switch is operated and is not zero (see FIG. 8).
That is, when the restriction by the lock mechanism 4 is released and the energization of the motor M is stopped, when the hand is released from the side switch 8 (when the side switch 8 automatically returns), the ECU 7 in step S71 determines the vehicle speed. It is determined whether or not the vehicle speed detected by the sensor 11 is 0. If the vehicle speed is 0, the process proceeds to step S42. In step S42, the ECU 7 operates the notification means 14 to the notification state to notify the fact (for example, that the released state is still maintained), and returns to step S71. In step S71, if the vehicle speed is not zero, that is, the vehicle is running, the ECU 7 proceeds to step S43 (refer to FIG. 5 hereinafter).

  In this way, even if the hand is released from the side switch 8, the state where the restriction by the lock mechanism 4 is released is maintained until the vehicle speed becomes zero, that is, until the vehicle moves. Therefore, for example, even when the operation switch is not operated, the seat 1 can be freely moved until the vehicle moves, and convenience can be improved.

Further, for example, the restriction condition may be a door restriction condition that is satisfied when the vehicle door is in the closed state when the operation switch is operated (see FIG. 9).
That is, when the restriction by the lock mechanism 4 is released and the energization of the motor M is stopped, when the hand is released from the side switch 8, the ECU 7 updates the information detected by the door courtesy switch 16 in step S81. Based on this, it is determined whether or not the vehicle door is open (off) or closed (on), and if it is open (off), the process proceeds to step S42. In step S42, the ECU 7 activates the notification means 14 to the notification state to notify the fact (for example, that the state is still released), and returns to step S81. In step S81, if the vehicle door is in the closed state (ON), the ECU 7 proceeds to step S43 (refer to FIG. 5 hereinafter).

  If it does in this way, even if it removes a hand from side switch 8, the state where regulation by lock mechanism 4 is canceled will be held until a vehicle door is made into a closed state. Therefore, for example, even when the operation switch is not operated, the seat 1 can be moved freely until the vehicle door is closed, and convenience can be improved.

  Further, for example, the restriction condition may be a restriction condition after the collision that is satisfied when the collision detection flag is reset if the collision is detected when the operation switch is operated (see FIG. 10).

  That is, when the restriction by the lock mechanism 4 is released and the energization to the motor M is stopped, when the hand is released from the side switch 8 (when the side switch 8 automatically returns), the ECU 7 performs a collision in step S91. It is determined whether or not the vehicle collision is detected by the detection sensor 12, and if the vehicle collision is detected, the process proceeds to step S42. Whether or not a vehicle collision is detected by the collision detection sensor 12 is determined by a collision detection flag. Specifically, the collision detection flag is set to “1” when a vehicle collision is detected. Is "1" ("0"), and if it is "1", the process proceeds to step S42. Further, the collision detection flag is maintained at “1” until it is reset at a maintenance shop or the like, for example, and becomes “0” when reset. In step S42, the ECU 7 activates the notification unit 14 to the notification state to notify the fact (for example, that the state is still released), and returns to step S91. In step S91, the ECU 7 proceeds to step S43 (refer to FIG. 5 hereinafter) if a vehicle collision is not detected, that is, if the collision detection flag is “0”.

  If it does in this way, even if it releases a hand from side switch 8, if it is after collision detection (until a collision detection flag is reset), the state where regulation by lock mechanism 4 is canceled will be held. Therefore, for example, even after the operation switch is not operated, the seat 1 can be freely moved after the collision is detected, and the convenience can be improved.

-You may change the compulsory regulation conditions (refer step S31 in FIG. 4) of the said embodiment into another compulsory regulation condition.
For example, the forced restriction condition may be a time lapse forced restriction condition that is satisfied when a preset time (for example, 20 seconds) elapses after the restriction by the lock mechanism 4 is released in a state where the vehicle speed is not zero (FIG. 11). reference).

That is, when it is detected that the restriction is released in step S13 (see FIG. 2), the ECU 7 starts the process shown in FIG. 11 in parallel with the process in step S14.
As shown in FIG. 11, in step S101, the ECU 7 determines whether or not a preset time (for example, 20 seconds) has elapsed since the restriction is released in a state where the vehicle speed is not zero, and the vehicle speed is not zero. When a preset time (for example, 20 seconds) elapses, the process proceeds to step S102. If the preset time (for example, 20 seconds) has not elapsed while the vehicle speed is not 0, step S101 is repeated.

  In step S102, the ECU 7 energizes the motor M so that the output unit is driven in the reverse direction on the side where the lock mechanism 4 is regulated, regulates the lock mechanism 4, and informs the notifying means 14 to the reporting state. To that effect (for example, performing a restriction by the lock mechanism 4).

  If it does in this way, when the preset time (for example, 20 seconds) will pass in the state where the vehicle speed is not 0, the restriction | limiting by the lock mechanism 4 will be performed and the sheet | seat 1 can be fixed. Accordingly, it is possible to forcibly prevent the state in which the restriction is released during traveling from continuing for a long time (for example, longer than 20 seconds).

  In the above embodiment, the seat 1 is provided so as to be slidable along the lower rail extending in the vehicle front-rear direction, and the lock mechanism 4 is for restricting the slide movement along the vehicle front-rear direction. However, the direction of the slide movement is not limited to this.

  For example, the seat 1 may be embodied in the case where the seat 1 is provided so as to be slidable along the vehicle longitudinal direction and the vehicle width direction. In this case, for example, as the lock mechanism 4, a front / rear lock mechanism for restricting the sliding movement of the seat 1 along the vehicle front-rear direction and a width lock mechanism for restricting the slide movement of the seat 1 along the vehicle width direction. And as the operation switches corresponding to each of them, a front / rear operation switch and a width operation switch are provided. In this case, the ECU 7 controls the motor M based on the operation of the front / rear operation switch or the width operation switch on the side operated first, and thereafter disables the operation of other operation switches until the direction priority end condition is satisfied. It is good. The direction priority end condition is, for example, a time end condition that is satisfied when a preset time (for example, 3 minutes) elapses, as in the priority end condition. In this way, for example, the operation of the front / rear operation switch or the width operation switch on the side operated first is prioritized, and the release of the restriction by the front / rear lock mechanism and the release of the restriction by the width lock mechanism are prevented at the same time. can do. The front / rear operation switch and the width operation switch may be arranged on the side surface of the seat cushion 2 (having a side switch) and arranged on the back surface of the seat back 3 (having a back switch). It is good also as a structure provided only one each.

  In this case, the motor M (drive source) can drive its output part in two directions, the forward direction and the reverse direction, and the regulation by the front and rear lock mechanism is released by driving in the forward direction from the neutral position. The restriction by the width lock mechanism may be released by driving in the reverse direction from the neutral position. In this way, the restriction of the two lock mechanisms (front / rear lock mechanism and width lock mechanism) can be released respectively, and the motor M (drive source) of the motor M (drive source) is compared with the case where the drive sources are provided in the two lock mechanisms, respectively. The number can be reduced (to one). Since the motor M (drive source) is generally heavy and expensive, for example, by reducing the number of the motor M (drive source), for example, the seat 1 to be mounted can be reduced in weight and price. be able to.

  Further, in this case, the release detection means (release limit switch 6) releases the restriction by the front / rear release limit switch (front / rear release detection means) for detecting that the restriction by the front / rear lock mechanism is released, and the restriction by the width lock mechanism. It is good also as a structure provided with the width cancellation | release limit switch (width cancellation | release detection means) which detects having been performed. Then, when it is detected that the front and rear release limit switch and the width release limit switch are simultaneously released, the ECU 7 invalidates the operation of the operation switches (front and rear operation switches and width operation switches). Also good. In addition, when it is detected that the front and rear release limit switch and the width release limit switch are simultaneously released, the ECU 7 may cause the notification means 14 to operate in a notification state to notify that effect. Specifically, for example, when an operation switch (front / rear operation switch or width operation switch) is operated, the ECU 7 performs FIG. 12 in parallel with the normal operation processing (for example, see FIGS. 2 and 5). The process shown in FIG. Then, when it is detected in step S111 that the restriction is simultaneously released by the front / rear release limit switch and the width release limit switch, the ECU 7 proceeds to step S112, and the operation switches (front / rear operation switch and width operation switch) are switched. While invalidating the operation, the notifying means 14 is activated to notify the fact. At the same time, if it is not detected that the restriction is released, step S111 is repeated.

  In this way, since it is detected that the restriction has been released at the same time, the operation of the operation switches (front / rear operation switch and width operation switch) is invalidated. In this state, only one of the width lock mechanism and the width lock mechanism can be released. Moreover, since the notification means 14 is set to the notification state and the fact is notified, the passenger can easily know that some failure has occurred.

  In the above embodiment, although not particularly mentioned, the ECU 7 determines that a vehicle collision is detected or there is a possibility of a vehicle collision when the emergency condition is satisfied, that is, in step S31 shown in FIG. Then, the motor M may be controlled so that the restriction by the lock mechanism 4 is performed faster than usual. In normal times, the motor M is driven at an optimum speed in consideration of various effects such as noise and vibration of the motor M. On the other hand, when the emergency condition is satisfied, the noise and vibration are large. Even then, the motor M is driven at a speed faster than normal.

If it does in this way, in the case of emergency, the sheet | seat 1 can be fixed by performing regulation by the lock mechanism 4 more rapidly.
In the above embodiment, the release detection means and the restriction detection means are limit switches (release limit switch 5 and restriction limit switch 6). However, the invention is not limited to this, and the restriction by the lock mechanism 4 is released. It is good also as other cancellation | release detection means which detects this, and it is good also as another regulation detection means which detects that regulation by the lock mechanism 4 is performed. For example, the release detection unit and the regulation detection unit may be the rotation sensor S or the lock current detection unit. In the case of the rotation sensor S, for example, it may be detected based on the number of pulses output from the rotation sensor S that the restriction is released or the restriction is being performed. It may be detected that the restriction has been released or that the restriction has been performed based on the time since the stop (that is, it is determined that the stop has occurred mechanically). In the case of the lock current detection means, for example, the current value to be energized is detected, and the restriction is released based on the current value (that is, it is determined that the lock current is mechanically stopped) May be detected. In addition, for example, the release detection unit and the regulation detection unit may be timers. In this case, the forced stop condition (time lapse forced stop condition that is satisfied when a preset time elapses) in the above-described embodiment is used. It becomes impossible to adopt.

  In the above embodiment, the forced stop condition is the time lapse forced stop condition that is satisfied when a preset time has elapsed, but the present invention is not limited to this, and may be changed to another condition. For example, it is good also as a rotation number excess forced stop condition satisfy | filled when the number of the pulses output from the rotation sensor S exceeds the preset number. Even in this case, even if some failure occurs in the release detection means and the restriction detection means (release limit switch 5, restriction limit switch 6, etc.), the number of pulses output from the rotation sensor S is a preset number. By satisfying the excessive rotation speed forcible stop condition that is satisfied when the value exceeds the value, it is possible to prevent the current from continuing to flow through the motor M.

  Although not specifically mentioned in the above embodiment, the seat 1 includes an ottoman, and the ECU 7 stores the ottoman when releasing the restriction based on the operation of the operation switch. Good. In this way, when the restriction is released, the ottoman does not get in the way when the seat 1 is slid.

  In the above embodiment, although not particularly mentioned, the ECU 7 cancels the restriction by the lock mechanism 4 regardless of the operation of the operation switch when the seat back 3 is tilted forward (so-called large tilt). The motor M may be controlled. Further, the ECU 7 may control the motor M so that when the seat back 3 is raised thereafter, the lock mechanism 4 performs regulation regardless of the operation of the operation switch. In this way, for example, it is possible to easily carry out that the passenger who was in the seat behind the seat back goes out of the vehicle through the vehicle door on the front side, and convenience can be improved.

  In addition, you may implement not only a change but the said embodiment and each other example with respect to it as much as possible.

  DESCRIPTION OF SYMBOLS 1 ... Seat, 4 ... Lock mechanism, 7 ... ECU (control part), 8 ... Side switch (operation switch), 9 ... Back switch (operation switch), 14 ... Notification means, M ... Motor (drive source).

Claims (5)

A vehicle seat device comprising: a lock mechanism that restricts sliding movement of a seat; and a drive source for restricting and releasing the lock mechanism based on an operation of an operation switch,
When the operation switch is operated to release the restriction by the lock mechanism and the seating on the seat is detected, the drive is performed so that the restriction by the lock mechanism is performed regardless of the operation of the operation switch. And when the restriction by the lock mechanism is released on the basis of the operation of the operation switch, the operation switch can be operated when a preset forced restriction condition other than the operation of the operation switch is satisfied. Regardless, a vehicle seat device comprising a control unit that controls the drive source so as to be regulated by the lock mechanism. A vehicle seat device comprising: a lock mechanism that restricts sliding movement of a seat; and a drive source for restricting and releasing the lock mechanism based on an operation of an operation switch,
When the restriction by the lock mechanism is released on the basis of the operation of the operation switch, if the preset restrictive condition other than the operation of the operation switch is satisfied, the lock mechanism A control unit for controlling the drive source so as to perform regulation;
The vehicle seat device according to claim 1, wherein the forced restriction condition includes a time lapse forced restriction condition that is satisfied when a preset time elapses after the restriction by the lock mechanism is released in a state where the vehicle speed is not zero. The vehicle seat device according to claim 1 or 2 ,
The forced restriction condition includes an emergency condition that is satisfied when a vehicle collision is detected or when it is determined that there is a possibility of a vehicle collision. The vehicle seat device according to claim 3 ,
If the said emergency part is satisfy | filled, the said control part will control the said drive source so that regulation by the said locking mechanism may be performed faster than normal time, The vehicle seat apparatus characterized by the above-mentioned. The vehicle seat device according to any one of claims 1 to 4,
If the said control part satisfy | fills the said forced control conditions, the notification means will be act | operated to an alerting | reporting state, and it will alert | report that.

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