JP2007168480A - Vehicle seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance the ease of boarding and operability of various operating parts at the time of boarding. <P>SOLUTION: When it is judged that an occupant's boarding has started, the working position P of a seat 12 is stored in a seat slide position memory means, and the seat 12 is moved backward by a reversing distance A. When thereafter it is judged that the occupant's getting-off is completed, the seat 12 is moved forward by an advancing distance B which is shorter than the reversing distance A. In preparation for boarding again, the seat 12 is kept moved forward from the seat slide position at the time of getting off, and thereby easy boarding can be secured, and also the distance between the occupant and various operation parts at the time of boarding can be shortened, and it is possible to enhance the operability of various operation parts. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat device.

Based on the output signals of the shift lever sensor and the door sensor, the storage lever stores the front and rear positions of the seat when the shift lever is set to the parking position and the door is opened, and the engine operates based on the output signals of the ignition key sensor and the door sensor. There is disclosed a vehicle seat control device provided with a control means CPU that controls the operation of the seat slide mechanism so that when the door is closed and the seat is returned to the front and rear position stored in the storage means ( Patent Document 1).
JP-A-6-74464

  However, in the above-described conventional example, when the vehicle seat is retracted to a position where it is easy to get off after the door is opened, the front and rear positions of the vehicle seat are maintained at the retracted position, and then the passenger gets on the door. Since the front and rear position of the vehicle seat is far from the ignition switch at the time of boarding and the vehicle seat is returned to the stored front and rear position by key operation etc. There is still room for improvement in operability.

  In view of the above facts, the present invention has an object to improve the riding performance and the operability of various operation sections when riding.

  According to the first aspect of the present invention, there is provided a vehicle seat configured such that an occupant can be seated and slidable in a longitudinal direction of the vehicle, and a seat that stores a seat slide position of the vehicle seat during use of the occupant as a use position. A slide position storage means, a getting-off completion judging means for judging completion of getting off of the occupant, and when the ending of getting off of the occupant is judged by the getting-off completion judging means, the seat slide position is closer to the front and rear of the vehicle than a predetermined position. And a seat slide position automatic adjusting means for advancing the vehicle seat within a range rearward of the use position when in the rearward direction.

  In the vehicle seat device according to claim 1, the seat slide position automatic adjustment is performed when the seat slide position is located behind the predetermined position in the vehicle front-rear direction when the ride-off completion determination unit determines that the passenger has exited the vehicle. Since the means advances the vehicle seat, the distance between the vehicle seat and the various operation parts is close at the next boarding, and the various operation parts are easily operated after boarding. Further, the forward movement of the vehicle seat is performed in a range behind the use position stored by the seat slide position storage means, and the occupant can be seated with the seat slide position retracted from the use position. Compared to the case where the vehicle seat moves forward to the use position, the boarding space is wide and the rideability is good.

  Therefore, according to the vehicle seat device of the first aspect, it is possible to improve the rideability and improve the operability of the various operation sections when riding.

  According to a second aspect of the present invention, in the vehicle seat device according to the first aspect of the present invention, the vehicle seat device further includes a getting-off start determining unit that determines the start of the occupant getting off, and the getting-off start determining unit determines whether the occupant starts to get off. In this case, the seat slide position automatic adjusting means retracts the vehicle seat from the use position.

  In the vehicle seat device according to claim 2, the seat slide position automatic adjusting means moves the vehicle seat backward from the use position when the passenger getting off start is determined by the getting off start determining means. The space is widened and the dismounting property is improved.

  According to a third aspect of the present invention, in the vehicle seat device according to the first or second aspect of the present invention, the vehicle seat device further includes boarding completion judging means for judging completion of boarding of the passenger, and the boarding completion judging means uses the boarding completion judging means. When the completion is determined, the automatic seat slide position adjusting means advances the vehicle seat at a speed different from the speed at the time of reverse movement.

  In the vehicle seat device according to claim 3, when the ride completion determination means determines that the occupant has completed the boarding, the seat slide position automatic adjustment means advances the vehicle seat at a speed different from the reverse speed. . Since the moving speed is changed depending on the purpose of moving the vehicle seat, the comfort at the time of getting on and off can be improved.

  According to a fourth aspect of the present invention, in the vehicle seat device according to any one of the first to third aspects, the seat belt capable of restraining the occupant seated on the vehicle seat and the seat in a normal state. And a seat belt automatic sending means for urging the belt in the storing direction and sending out the seat belt in the pulling-out direction when the vehicle seat moves forward.

  In the vehicle seat device according to claim 4, since the seat belt has automatic seat belt feeding means for feeding the seat belt in the pull-out direction when the vehicle seat moves forward, the tension of the seat belt worn by the occupant is It is possible to suppress the vehicle seat from increasing when the vehicle seat moves forward, and to suppress a change in the belt wearing state.

  According to a fifth aspect of the present invention, in the vehicle seat device according to any one of the first to fourth aspects, the vehicle seat device further comprises invalidating means for invalidating the operation of the seat slide position automatic adjusting means. The invalidation state by the activating means is released when a predetermined condition is satisfied, and the operation of the automatic seat slide position adjusting means is validated again.

  The vehicle seat device according to claim 5 includes invalidating means for invalidating the operation of the seat slide position automatic adjusting means, and the invalidation state by the invalidating means is obtained when a predetermined condition is satisfied. Therefore, the operation of the automatic seat slide position adjusting means is re-enabled, so that no special operation is required for passengers who are highly effective in operating the automatic seat slide position adjusting means. In addition, the seat slide position automatic adjustment means can be validated.

  As described above, according to the vehicular seat device according to claim 1 of the present invention, it is possible to improve the rideability and improve the operability of various operation sections when riding. An effect is obtained.

  According to the vehicle seat device of the second aspect, it is possible to obtain an excellent effect that the space at the time of dismounting is widened and the dismounting property is improved.

  According to the vehicle seat device of the third aspect, it is possible to obtain an excellent effect that the comfort at the time of getting on and off can be improved.

  According to the vehicle seat device of claim 4, the tension of the seat belt worn by the occupant can be prevented from increasing when the vehicle seat moves forward, and the belt wearing state can be prevented from changing. An excellent effect is obtained.

  According to the vehicle seat device of claim 5, even if the seat slide position automatic adjustment means is invalidated by the invalidation means, for a passenger who has a large effect of operating the seat slide position automatic adjustment means, There is obtained an excellent effect that the seat slide position automatic adjustment means can be validated without requiring a special operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In FIG. 1, a vehicle seat device 10 according to the present embodiment is a device that advances or reverses a vehicle seat 12 configured to be slidable in the vehicle longitudinal direction when an occupant (not shown) gets on and off. 2, for example, a seat slide position storage means provided in the ECU 18, an ignition switch 14 and a door courtesy switch 16, which are examples of a getting-off start judging means and a getting-off completion judging means, an ECU 18, and a seat slide The motor 20, the door courtesy switch 16, the buckle switch 22, and a retractor 24, which is an example of an automatic seat belt feeding means, are provided. The ECU 18 and the seat slide motor 20 are examples of a seat slide position automatic adjustment unit, and the door courtesy switch 16 and the buckle switch 22 are examples of a boarding completion determination unit. In FIG. 2, the ECU 18, the seat slide motor 20, and the buckle switch 22 surrounded by a broken line are components installed in the vicinity of the vehicle seat 12.

  The vehicle seat 12 is, for example, a driver's seat provided with a steering wheel 26, a seat cushion 28 on which an occupant can be seated, a seat back 30 that can support the occupant's back when seated, and an occupant's head. And a headrest 32 that supports the headrest 32. The vehicle seat 12 is configured to be slidable in the vehicle front-rear direction by a seat rail 36 provided on the floor panel 34, for example, and has a seat slide sensor (not shown) capable of detecting the seat slide position. ing. The seat slide position of the vehicle seat 12 can be arbitrarily set according to the occupant's physique, and the ECU 18 can automatically move forward or backward when the occupant gets on and off by controlling the operation of the seat slide motor 20 (FIG. 2). It can be moved backwards.

  The ignition switch 14 is a switch that can be switched between an ON state and an OFF state by, for example, an ignition key (not shown). For example, the engine can be operated in the ON state, and the engine is stopped in the OFF state. It becomes. When a smart key system is used instead of the ignition key, the ignition switch 14 can be turned on and off by a start button or the like (not shown). The smart key system is a smart key as an “electronic key” for transmitting unique identification information (ID), an ID transmitted from the smart key, and the ID and pre-stored registration information. A keyless entry system for a vehicle having a smart key control unit as an “authentication unit” for collation. For example, when an occupant carrying a smart key approaches a door (not shown) of the vehicle, The door is unlocked upon detection, the engine can be started after boarding, and the door is locked when the passenger gets off and leaves the vehicle. This smart key system can be used as an occupant proximity determination means.

  The door courtesy switch 16 is a switch provided on the vehicle body side of the door opening to detect the open / closed state of the door. For example, the door courtesy switch 16 is turned on when the door is open and is turned off when the door is closed. Has been.

  The ECU 18 is a control unit of the vehicle seat device 10 and stores a seat slide position in a seat slide position storage means (for example, a memory device) based on a signal from the seat slide sensor, and also includes an ignition switch 14, a door courtesy switch 16, and According to the state of the buckle switch 22, the start of getting off the vehicle, the completion of getting off, and the completion of getting on are respectively determined, and the seat slide motor 20 and the retractor 24 are operated appropriately.

  The seat slide motor 20 is operated by being controlled by the ECU 18 and is a drive source for moving the vehicle seat 12 forward and backward via a linear motion mechanism (not shown) such as a ball screw. The seat slide motor 20 may be a linear motor, for example.

  The buckle switch 22 is provided in a buckle device (not shown) for fitting the tongue plate of the seat belt, and is turned on when the tongue plate is fitted, and turned off when the tongue plate is detached from the buckle device. Switch.

  The seat belt is a webbing for restraining an occupant seated on the vehicle seat 12 and is appropriately pulled out from the retractor 24 when the occupant wears the seat belt. The seat belt is normally urged in the storing direction (for example, the winding direction) by the retractor 24, but the vehicle seat 12 is automatically operated when the occupant is seated on the vehicle seat 12 and the seat belt is mounted. When the vehicle moves forward, it is sent out in the pull-out direction from the retractor 24 based on the control of the ECU 18. That is, the retractor 24 is a motor-driven retractor that can rotate, for example, a spool around which a seat belt is wound by operating a motor (not shown) in the direction in which the seat belt is pulled out. Although the retractor 24 is given as an example of the automatic seat belt sending means, the invention is not limited to this, and the seat belt can be sent automatically when the vehicle seat 12 automatically moves forward. If so, other means may be used.

(Function)
FIGS. 3 to 10 show eight types of control flows for the vehicle seat device 10, and the operation of the vehicle seat device 10 will be described below according to these control flows.

[First control flow]
As shown in FIG. 3, in the first control flow (when getting off), the state of the ignition switch 14 is determined in process S111, and in the next process S112, whether the door is open, that is, the door courtesy switch 16 is turned on. It is judged whether or not. This determination is made by the ECU 18 connected to the ignition switch 14 and the door courtesy switch 16 in FIG.

  Here, in FIG. 3, when the ignition switch 14 is in the OFF state and the door is opened, it is determined that the occupant gets out of the vehicle from now on, and in step S113, the seat slide position at that time, that is, The use position P (FIG. 1) of the vehicle seat 12 is stored in the seat slide position storage means. Specifically, after the ECU 18 determines the start of getting off, the use position P of the vehicle seat 12 is stored in the seat slide position storage means based on a signal from the seat slide sensor.

  Next, in preparation for the passenger to get off, in step S114, the vehicle seat 12 is moved backward by a predetermined amount, for example, Acm by the automatic seat slide position adjusting means. Specifically, in FIGS. 1A and 2, when the seat slide motor 20 is operated by a predetermined amount by the ECU 18, the vehicle seat 12 moves backward from the use position P in the direction of arrow R by Acm and stops. As a result, the vehicle seat 12 moves away from the steering wheel 26 and the foot space of the occupant is increased, so that the dismounting property is improved.

  Next, in process S115 of FIG. 3, it is determined by the ECU 18 whether the door is closed, that is, whether the door courtesy switch 16 is OFF, and in the next process S116, it is confirmed that the door is closed in process S115. For example, it is determined whether or not a certain time has passed since the timer. Further, in step S117, it is determined whether or not the ignition switch 14 is turned off or the key is not inserted into the key hole (not shown) of the ignition switch 14 when the ignition key is used.

  That is, after the process S114, for example, when the occupant gets off the ignition switch 14 (or removes the ignition key) and gets off, and when a certain time elapses after closing the door, it is determined that the occupant has exited, and the process In S118, the vehicle seat 12 is moved forward by a predetermined amount, for example, Bcm by the seat slide position automatic adjusting means. Specifically, in FIGS. 1B and 2, when the seat slide motor 20 is operated by a predetermined amount by the ECU 18, the vehicle seat 12 advances from the use position P in the direction of arrow F by Bcm and stops. Since the forward travel distance B at this time is smaller than the reverse travel distance A, for example, the vehicle seat 12 has not returned to the use position P, and the distance and foot space between the vehicle seat 12 and the steering wheel 26 are the use position. It is wider than the case where the vehicle seat 12 is positioned at P. For this reason, the boarding | operating property at the time of a passenger | crew getting on next becomes favorable. Further, since the vehicle seat 12 is closer to the ignition switch 14 than when the passenger gets off, the operability of the ignition switch 14 as an example of various operation sections when the occupant gets on next time is also good. This forward movement is performed when the seat slide position when getting off the vehicle is behind the predetermined position, and when it is ahead of the predetermined position, it is not performed because the foot space for getting on the vehicle is reduced. The predetermined position is, for example, a central position in the seat slide range.

  Next, a control flow after the passenger gets on will be described. In the first control flow shown in FIG. 3 (during boarding), in process S121, the ECU 18 determines whether the door is closed, that is, whether the door courtesy switch 16 is OFF. In the next process S122, the ignition switch 14 is determined. Is determined. That is, when the occupant gets on, closes the door, starts the engine, etc. and turns on the ignition switch 14, it is determined that the occupant has completed the boarding. In step S123, the vehicle seat is automatically adjusted by the seat slide position automatic adjusting means. 12 moves forward to the use position P. Specifically, in FIGS. 1C and 2, when the seat slide motor 20 is operated by a predetermined amount by the ECU 18, the vehicle seat 12 moves forward in the direction of arrow F (A−B) cm and stops. As a result, the seat slide position of the occupant's vehicle seat 12 has returned to the use position P, so that the occupant can start driving the vehicle without again adjusting the seat slide position.

  Note that the speed at which the seat slide position automatic adjusting means advances the vehicle seat 12 in the process S123 may be set to be different from the reverse speed in the process S114. For example, by setting the reverse speed higher than the forward speed, the vehicle seat 12 can be quickly moved backward when getting off, and for example, the next rider has a larger physique than the previous rider, and the memory When the vehicle seat 12 moves forward to the used use position P, when the foot becomes narrow, a time margin for performing an operation or the like for stopping the forward movement can be secured.

  Before the seat slide position is automatically adjusted, if the vehicle seat 12 is moved rearward by the seat slide operation of the occupant and a sufficient space for getting off is secured, the seat slide position is automatically The vehicle seat 12 may not be moved backward by the adjusting means.

[Second control flow]
As shown in FIG. 4, in the second control flow (when getting off), an occupant detection sensor (not shown) is used as the getting-off completion determination means, and in the second control flow (when getting on), the occupant detection sensor is used as the completion completion determination means. This is different from the first control flow in this point. Accordingly, the processing from S211 to S214 is the same as the processing from S111 to S114 in the first control flow (when getting off), and thus the description thereof will be omitted, and the processing from S215 onward will be described. The occupant detection sensor is, for example, a load sensor or an image sensor that can detect that an occupant is seated on the vehicle seat 12.

  In the process S215, it is determined by the ECU 18 whether or not the occupant detection sensor is turned off, that is, whether or not the occupant has got off. In the next process S216, the completion of the occupant's getting off is confirmed in the process S215. It is determined whether a certain time has passed. That is, after the processing S214, when a certain time elapses after the occupant gets off, it is determined that the occupant has exited, and in the processing S217, the vehicle seat 12 is moved by a predetermined amount, for example, Bcm forward by the seat slide position automatic adjustment means. Move to. The specific action is the same as that in step S118 of the first control flow (when getting off), and the rideability when the occupant next gets on and the operability of the ignition switch 14 and the like are good.

  Next, a control flow after the passenger gets on will be described. In the second control flow shown in FIG. 4 (during boarding), in process S221, it is determined by the ECU 18 whether the door courtesy switch 16 is OFF, that is, whether the door is closed, and in the next process S222, an occupant detection sensor is detected. It is determined whether or not is ON. That is, when the occupant gets on and sits on the vehicle seat 12 and closes the door, it is determined that the occupant has completed the boarding. In step S223, the vehicle seat 12 is moved to the use position P by the seat slide position automatic adjusting means. Move forward until Since the advancement of the vehicle seat 12 can be started at an earlier time point than when the ignition switch 14 is turned on as a trigger for the completion of boarding as in step S122 of the first control flow (when boarding) in FIG. It is easy to reach the ignition etc. quickly and the vehicle can be started quickly. The specific operation when the vehicle seat 12 moves forward is the same as the process S123 of the first control flow (when boarding).

[Third control flow]
As shown in FIG. 5, in the third control flow, in the vehicle seat device 10 having the invalidating means, when the operation of the automatic seat slide position adjusting means is invalidated by the invalidating means, the invalidation is performed. Three examples of predetermined conditions in which the activated state is released and reactivated (returned) are illustrated, and a control flow in the case where each condition is applied is shown.

  First, in step S312 of FIG. 5A, the first condition is that the vehicle seat 12 slides forward from the rear at a predetermined seat slide position by the operation of the occupant, that is, the occupant advances the vehicle seat 12 forward. It is set to exceed a predetermined seat slide position when it is moved. Such a condition is set as a condition for canceling the invalidating means, for example, for a large occupant who has relatively little need to automatically adjust the seat slide position of the vehicle seat 12 for the occupant who had previously been in the vehicle. Therefore, if the operation of the automatic seat slide position adjusting means is disabled by the occupant, the automatic seat slide position adjusting means does not operate even when the next occupant is relatively small, and the occupant himself Since the vehicle seat 12 is advanced to adjust the seat slide position, the operation is used as a trigger for canceling the invalidation.

  A control flow when the first condition is applied will be described. In step S311, it is determined whether the seat slide position automatic adjustment means has been disabled after the passenger has boarded, and in step S312, whether the vehicle seat 12 has moved beyond the predetermined seat slide position from the rear to the front. Judgment is made. Specifically, the ECU 18 monitors a signal from the seat slide sensor, and determines whether or not the vehicle seat 12 has advanced and passed a predetermined seat slide position from the rear to the front.

  If the ECU 18 determines that the passage has been performed, the invalidation state of the seat slide position automatic adjustment means is canceled in step S313, and the validation state is restored. In this case, the occupant does not need to perform the invalidation cancellation operation separately, and adjusts the seat slide position according to his / her physique, so that the seat slide position passes the predetermined seat slide position from the rear to the front. In this case, the invalidation state is automatically canceled. By re-enabling the operation of the automatic seat slide position adjusting means, it is possible to enjoy the convenience of improving the riding performance and improving the operability of the ignition switch 14 and the like.

  In step S312, when a passenger with a large physique gets on as in the previous case, the vehicle seat 12 does not move forward, and the seat slide position moves forward from the rear to the predetermined seat slide position even if the vehicle is advanced. When the vehicle seat 12 has not passed, the invalid state of the seat slide position automatic adjusting means is maintained, so that the vehicle seat 12 does not automatically move forward or backward when getting on and off. Further, the operation of moving the vehicle seat 12 forward is not limited to the occupant actually boarded, but may be a person other than the occupant.

  Next, in the case where the vehicle seat 12 has a seat memory function capable of storing and recalling an arbitrary seat slide position, the ECU 18 moves to the memory switch by pressing a memory switch (not shown). The use position P stored correspondingly is called, and the seat slide motor 20 is operated by a necessary amount, so that the vehicle seat 12 can be moved to the use position P. Therefore, in the process S322 of FIG. 5B, as a second condition for releasing and enabling the invalid state of the automatic seat slide position adjusting means, a memory different from the memory switch corresponding to the seat slide position immediately after boarding is used. The switch is set to be turned on. That is, the occupant who boarded last time is different from the occupant who boarded next time, and the memory switch for the next occupant that is different from the memory switch corresponding to the seat slide position (use position P) used by the previous occupant is turned ON. Is a trigger for canceling the invalid state of the seat slide position automatic adjustment means.

  Such a condition is set as a condition for canceling the invalidation means. For example, if the occupant who was on the previous ride is a large occupant and the next occupant is relatively small, the small occupant By turning on the memory switch, the vehicle seat 12 is moved to its own use position P, which is different from the seat slide position used by the occupant who got on the last time. It will be used as a trigger.

  A control flow when the second condition is applied will be described. In FIG. 5B, after the occupant gets on, whether or not the seat slide position automatic adjustment means is invalidated is determined in step S321, and is different from the memory switch corresponding to the seat slide position at the time of boarding in step S322. It is determined whether the memory switch is turned on. Specifically, the ECU 18 monitors the state of each memory switch, and determines whether or not a memory switch different from the memory switch corresponding to the seat slide position at the time of riding is turned on.

  If the ECU 18 determines that the memory switch has been turned ON, the invalidation state of the seat slide position automatic adjustment means is canceled and returns to the validation state in step S323. Also in this case, the occupant does not need to operate the memory switch for the purpose of releasing the invalidation state, and the invalidation state is automatically released simply by turning on the own memory switch. By re-enabling the operation of the automatic seat slide position adjusting means, it is possible to enjoy the convenience of improving the riding performance and improving the operability of the ignition switch 14 and the like.

  In step S322, if a passenger with a large physique gets on as in the previous case, the memory switch is not operated at all, and if the memory switch corresponding to the seat slide position immediately after boarding is turned on, the seat Since the invalid state of the slide position automatic adjusting means is maintained, the vehicle seat 12 does not automatically move forward or backward when getting on and off.

  Next, when the vehicle has a smart key system, it is possible to determine the occupant who has boarded the vehicle using smart keys having different IDs for each occupant. Therefore, in the processes S332 and S333 in FIG. 5C, as a third condition for canceling and enabling the invalid state of the seat slide position automatic adjustment means, the passenger of the passenger who invalidated the seat slide position automatic adjustment means The ID of the smart key is stored, and it is set that the ID as a result of collation between the ID and the ID of the smart key of the next passenger is mismatched.

  Such a condition is set as a condition for canceling the invalidation means. For example, when the occupant who was on the previous ride is a large occupant and the next occupant is relatively small, the change of the occupant is smart. This is because it can be easily identified by the key system.

  A control flow when the third condition is applied will be described. In FIG. 5C, after the occupant gets on, it is determined whether or not the invalid operation of the seat slide position automatic adjustment means using the invalidation means is performed in the process S331, and when the invalidation operation is performed, the process S332 is performed. The ID of the occupant's smart key is stored. Specifically, when the seat slide position automatic adjustment means is relatively low, for example, when a large occupant gets on and operates the invalidation means to invalidate the seat slide position automatic adjustment means, The ID of the smart key possessed by the passenger is stored.

  Here, when an occupant gets off and then, for example, a small occupant gets on, in step S333, the stored ID is collated with the ID of the occupant's smart key, and the IDs do not match. In step S334, the sheet slide position automatic adjustment unit disabled in step S334 is enabled again and returned. If the IDs match, the invalid state of the automatic seat slide position adjusting means is maintained in step S335, so that the vehicle seat 12 does not automatically move forward or backward when getting on and off.

  In this way, by using the smart key system, the invalid state of the automatic seat slide position adjusting means can be automatically canceled only by the passenger getting on. By re-enabling the operation of the automatic seat slide position adjusting means, it is possible to enjoy the convenience of improving the riding performance and improving the operability of the ignition switch 14 and the like.

  Further, in any of the control flows of FIGS. 5A, 5B, and 5C, it is not known that the vehicle seat apparatus 10 is provided with the seat slide position automatic adjusting means, and the seat slide Even if the user does not know the method for canceling the invalidation state of the automatic position adjusting means, the invalidation state can be canceled and the function can be used without being aware of it.

[Fourth control flow]
As shown in FIG. 6, in the fourth control flow (when getting off), the processing from S411 to S413 is the same as the processing from S111 to S113 of the first control flow (when getting off) in FIG. Is omitted, and the processing after step S414 will be described.

  In process S414, assuming that the front end of the seat slide range is FM and the rear end is RM, the sheet slide position stored by the sheet position storage means is a range from the front end FM to the rear less than a, and a range from a to less than b. Alternatively, the ECU 18 determines which of the range from b to the rear end RM belongs, and in step S415, the vehicle seat 12 is moved backward by a slide amount that is predefined according to the seat slide position. The backward travel distance is, for example, Acm when the stored seat slide position is in the range from the front end FM to the rear and less than a, Bcm when it is in the range from a to less than b, and from b to the rear end RM. Ccm when in range.

  Here, the magnitude of the reverse travel distance is A> B> C. When the seat slide position is close to the front end FM, the reverse travel amount is increased, and when the seat slide position is close to the rear end RM, the reverse travel amount is decreased. In this case, a reverse amount intermediate between the reverse amount close to the front end FM and the reverse amount close to the rear end RM is set. When the seat slide position is close to the front end FM, the reverse amount can be improved by increasing the reverse amount of the vehicle seat 12, and when the seat slide position is close to the rear end RM, the reverse amount is reduced. This is because the influence on the rear seat occupant can be reduced.

  On the other hand, in the fourth control flow of FIG. 6 (during boarding), in process S421, it is determined by the ECU 18 whether the door courtesy switch 16 is OFF, that is, whether the door is closed, and in the next process S422, the ignition switch. It is determined whether 14 is ON. That is, it is determined that the occupant has completed the boarding when the ignition switch 14 is turned on by, for example, starting the engine by closing the door and closing the door.

  Then, in process S423, the seat slide position stored at the time of the previous disembarkation (process S413) is the range from the front end FM of the seat slide range to the rear less than a, the range from a to b and the rear end RM from b to b. The ECU 18 determines which of the above-mentioned ranges, and advances the vehicle seat 12 by a slide amount that is predefined in accordance with the seat slide position in step S424. The advance distance is, for example, A′cm when the stored seat slide position is in the range from the front end FM to the rear and less than a, Bcm when the seat slide position is in the range from a to b, and b to the rear end. Ccm when in the range up to RM.

  Here, when comparing the magnitudes of the forward travel distance A ′ and the reverse travel distance A, A ′ <A. That is, when the stored seat slide position is close to the front end FM, the vehicle seat 12 is moved forward by a distance A ′ smaller than the reverse travel distance A, that is, the forward travel distance is reduced. Even when a stranger gets on, it is easy to ensure a distance from the instrument panel or the like. In addition, when the stored seat slide position is behind a or more from the front end FM of the seat slide range, the vehicle seat 12 moves forward by the same Bcm or Ccm as the distance traveled backward when the vehicle got off the previous time. In this case, even if the vehicle is moved forward by the same distance as the reverse travel distance, a sufficient foot space is ensured and a sufficient distance from the instrument panel or the like is sufficient.

[Fifth control flow]
As shown in FIG. 7, in the fifth control flow (during boarding), the door courtesy switch 16 in FIG. 2 and an occupant detection sensor (not shown) are used as boarding completion determination means. The fifth control flow (when boarding) will be described. First, in process S51, the ECU 18 determines whether the door courtesy switch 16 is OFF, that is, whether the door is closed. In the next process S52, the occupant detection sensor is detected. It is determined whether or not is ON. In other words, when the occupant gets on, sits on the vehicle seat 12 and closes the door, it is determined that the occupant has completed boarding.

  Then, in step S53, it is determined whether or not the buckle switch 22 is turned on. For example, when a passenger wears a seat belt and a tongue plate (not shown) is fitted into a buckle device (not shown), the buckle switch 22 is turned on. In step S54, the ECU 18 moves (advances) the vehicle seat 12 to the previously stored seat slide position, that is, the use position P. This use position P is, for example, the seat slide position stored in step S113 in FIG. The specific operation when the vehicle seat 12 moves forward is the same as the process S123 of the first control flow (when boarding). At this time, the retractor 24 is operated by the ECU 18 in synchronization with the forward movement of the vehicle seat 12, and the seat belt is sent out in the pull-out direction. Thereby, it can suppress that the tension | tensile_strength of the seatbelt with which the passenger | crew is mounted | worn increases at the time of the advance of the vehicle seat 12, and it can suppress that a change arises in a belt mounting state.

  On the other hand, even if the occupant is not wearing a seat belt, the vehicle seat 12 moves forward to the previously stored seat slide position, that is, the use position P when a certain time has elapsed. At this time, since the occupant has not yet worn the seat belt, it is not necessary to operate the retractor 24, and only the vehicle seat 12 moves forward. Thus, when the vehicle seat 12 moves forward before the seat belt is mounted, the seat belt may be mounted after the vehicle seat 12 is moved.

[Sixth control flow]
As shown in FIG. 8, in the sixth control flow, the smart key system is used as a getting-off completion judging means in the processing S616 when getting off and as a getting-out judging means in the processing S622 when getting on. In the sixth control flow (when boarding), the processing from step 611 to processing S615 is the same as the processing from S111 to processing S115 of the first control flow (when getting off). When it is determined in S611 and 612 that the occupant starts to get off, the use position P (FIG. 1) of the vehicle seat 12 is stored in the seat slide position storage means in the process S613, and in the process S614 by the automatic seat slide position adjusting means. The vehicle seat 12 moves backward by a certain amount, for example, Acm. In step S615, the ECU 18 determines whether the door is closed, that is, whether the door courtesy switch 16 is OFF.

  In the process S616, it is determined whether or not the occupant is away from the vehicle based on the presence or absence of the smart key radio wave detection. In the process S617, for example, a timer etc. It is determined whether it has elapsed. That is, after the process S614, the occupant carrying the smart key gets off, closes the door, leaves the vehicle, and it is determined that the occupant has exited after a certain period of time has elapsed since the smart key radio wave is no longer detected. In step S618, the vehicle seat 12 is moved forward by a predetermined amount, for example, Bcm by the automatic seat slide position adjusting means. The specific operation of the automatic seat slide position adjusting means is the same as the processing S118 of the first control flow (when getting off).

  Next, a control flow after the occupant gets on will be described. In the sixth control flow shown in FIG. 8 (during boarding), in process S621, it is determined by the ECU 18 whether the door is closed, that is, whether the door courtesy switch 16 is OFF. In the next process S622, the smart key is turned on. It is determined whether radio waves are detected. That is, since the radio signal of the smart key is detected when the occupant gets in, it is determined that the occupant has completed the boarding as soon as the door is closed, and in step S623, the specific operation of the seat slide position automatic adjusting means is as follows: This is the same as step S123 of the first control flow (during boarding).

  In this way, in the sixth control flow, the smart key system is used as the getting-off completion judging means and the boarding completion judging means, and it is judged that the boarding is completed when the door is closed after boarding, so the ignition switch is turned on. The forward movement of the vehicle seat 12 is started from the front, and the seat slide position quickly returns to the use position P. For this reason, the occupant can start driving quickly.

[Seventh control flow]
As shown in FIG. 9, in the seventh control flow, a smart key system is used as occupant proximity determination means for recognizing the approach of the occupant to the vehicle when boarding. Since the seventh control flow is a flowchart related to boarding, it does not include the control flow when getting off, but the ID of the smart key possessed by the last boarding passenger is It is remembered.

  In the process S71, it is monitored whether or not the smart key radio wave is detected. A person who has the smart key, that is, a passenger who is about to get on the vehicle, approaches the driver's seat of the vehicle, for example. When radio waves are detected, it is determined that an occupant has approached. At this time, the door may be unlocked at the same time. Next, when the proximity of the occupant is determined, in step S72, it is checked whether or not the ID of the recognized smart key is the same as the ID stored at the previous disembarkation. The vehicle seat 12 is automatically moved backward by a predefined slide amount from the seat slide position corresponding to.

  That is, since the vehicle seat 12 automatically moves to a position that is somewhat retracted from the use position P of the occupant who is about to get on from now on, the foot space becomes wider and the riding performance becomes better. In addition, since the use position P of each occupant corresponding to the ID of the smart key can be grasped by using the smart key system, for example, when the occupant who got on the last time is small and the current occupant is large, Taking into account the difference in the use position P, the vehicle seat 12 is moved backward by a large amount, so that a sufficient foot space can be ensured when boarding. For example, when the previous occupant is large and the current occupant is small, the vehicle seat 12 may be automatically advanced by a predetermined amount in consideration of the difference in each use position P.

  The movement control of the vehicle seat 12 in the process S73 is not limited to the above-described one. For example, the vehicle seat 12 moves backward (process S114) or moves forward (process S118) in the first control flow (when getting off) in FIG. In addition, when the vehicle seat 12 moves backward at the start of getting off and moves forward after completion of getting off, the movement of the vehicle seat 12 is controlled based on the seat slide position after the advancement.

[Eighth control flow]
As shown in FIG. 10, in the eighth control flow (when boarding), the door courtesy switch 16 and the buckle switch 22 shown in FIG. Since the eighth control flow is a flowchart related to getting on and off, the control flow at getting off is not included, but when it is determined that the occupant who got on the previous time starts getting off, as in step S113 of FIG. The seat slide position at that time, that is, the use position P is stored in the seat slide position storage means.

  The eighth control flow (during boarding) will be described. First, in process S81, the ECU 18 determines whether or not the door courtesy switch 16 is OFF, that is, whether or not the door is closed. In the next process S82, the buckle switch 22 is activated. It is determined whether or not it is turned on. That is, when the occupant gets on and closes the door, the tongue plate is fitted into the buckle device and the seat belt is attached, the buckle switch 22 is turned on, and it is determined that the occupant has completed the boarding.

  When it is determined in step S82 that the buckle switch 22 is turned on, the ECU 18 moves (advances) the vehicle seat 12 to the previously stored seat slide position, that is, the use position P. The specific operation when the vehicle seat 12 moves forward is the same as the process S123 of the first control flow (when boarding).

  In the eighth control flow, for example, an operation in which an occupant is seated on a vehicle seat 12 that is a driver's seat and a seat belt is attached is considered as preparation for driving the vehicle, and the seat belt is attached using the vehicle seat 12. A trigger for advancing to position P is used. By using the seat belt as a trigger, the vehicle seat 12 can be advanced to the use position P at an earlier stage than when the ignition switch 14 is turned on. Further, since the vehicle seat 12 does not move forward until the occupant wears the seat belt, the occupant's hand can easily reach the seat belt when the seat belt is worn. Furthermore, by not using the ignition switch 14 as a trigger, the vehicle seat 12 can be moved backward to a position where the ignition switch 14 cannot be reached when getting off the vehicle, and the foot space and the like can be further increased to improve the getting off property. be able to.

(A) In a vehicle seat device, it is a side view showing a state in which a vehicle seat moves backward by a reverse travel distance A from a use position when it is determined that a passenger gets off the vehicle. (B) It is a side view showing a state in which the vehicle seat moves forward by a forward distance B after it is determined that the occupant has finished getting off the vehicle. (C) It is a side view showing a state where the vehicle seat moves forward by a distance (A-B) and returns to the use position after it is determined that the occupant has completed boarding. It is a block diagram which shows an example of the components connected to ECU of the vehicle seat apparatus. It is a flowchart which shows a 1st control flow. It is a flowchart which shows a 2nd control flow. (A) In a 3rd control flow, it is a flowchart which shows the control flow at the time of setting the conditions which cancel | release the invalidation state of a seat slide position automatic adjustment means to pass a predetermined seat slide position from back to front. is there. (B) In the third control flow, the condition for canceling the invalid state of the seat slide position automatic adjustment means is that a memory switch different from the memory switch corresponding to the seat slide position at the time of boarding is pressed. It is a flowchart which shows the control flow in a case. (C) In the third control flow, the condition for canceling the invalidation state of the seat slide position automatic adjustment means is stored as the ID of the smart key of the occupant who invalidated the seat slide position automatic adjustment means; It is a flowchart which shows the control flow at the time of supposing that ID as a result of collation with the ID of the smart key of the passenger who boarded next becomes inconsistent. It is a flowchart which shows a 4th control flow. It is a flowchart which shows a 5th control flow. It is a flowchart which shows a 6th control flow. It is a flowchart which shows a 7th control flow. It is a flowchart which shows an 8th control flow.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle seat apparatus 12 Vehicle seat 14 Ignition switch (Get-off start judging means, getting-off completion judging means, boarding completion judging means)
16 door courtesy switch (alighting start determination means, alighting completion determination means, boarding completion determination means)
18 ECU
20 Seat slide motor (automatic adjustment means for seat slide position)
22 Buckle switch (Boarding completion judging means)
24 Retractor (seat belt automatic feeding means)
P Use position

Claims (5)

A vehicle seat configured to be slidable in the longitudinal direction of the vehicle, on which an occupant can be seated;
A seat slide position storage means for storing a seat slide position of the vehicle seat at the time of use of the occupant as a use position;
Getting off completion judging means for judging completion of getting off the passenger,
When the occupant completion determination is determined by the disembarkation completion determination means, the vehicle seat is within a range behind the use position when the seat slide position is behind the predetermined position in the vehicle front-rear direction. Automatic means for adjusting the seat slide position to advance the
A vehicle seat device comprising: A getting-off start judging means for judging the start of getting off of the passenger,
2. The vehicle according to claim 1, wherein the seat slide position automatic adjusting unit moves the vehicle seat backward from the use position when the getting-off start determining unit determines that the occupant starts to get off. Sheet equipment. Boarding completion judging means for judging completion of boarding of the occupant;
2. The seat slide position automatic adjusting means moves the vehicle seat forward at a speed different from the speed when retreating when the boarding completion judging means judges the boarding completion of the occupant. Alternatively, the vehicle seat device according to claim 2. A seat belt capable of restraining the occupant seated on the vehicle seat;
A seat belt automatic sending means that normally urges the seat belt in the storing direction and sends the seat belt in the pulling direction when the vehicle seat moves forward,
The vehicle seat device according to any one of claims 1 to 3, wherein the vehicle seat device is provided. Invalidating means for invalidating the operation of the seat slide position automatic adjusting means;
5. The invalidation state by the invalidating means is canceled when a predetermined condition is satisfied, and the operation of the seat slide position automatic adjusting means is revalidated. The vehicle seat device according to claim 1.

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