JP3465690B2 - Vehicle seat device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat device.

[0002]

2. Description of the Related Art Conventionally, a vehicle seat has been placed in an "in / out position".
There is known a vehicle seat device with a slide and rotation mechanism, which is capable of sliding movement and rotation between a seating position and a "seating position". Here, the "embarkation position" means, for example,
The vehicle seat is in a sliding position in the vehicle interior near the vehicle side opening (door opening or the like), and is a rotational position facing the vehicle side opening. At the "embarkation position", the occupant can easily get on and off the vehicle. Further, the “seating position” is, for example, a rotational position facing the front of the vehicle at a position slightly rearward of the sliding position of the vehicle seat near the opening on the side surface of the vehicle in the vehicle interior. In this vehicle seat device with a sliding and rotating mechanism, a horizontal rotating operation of the vehicle seat and a sliding operation in the vehicle front-rear direction are performed in combination. For example, a seat frame that fixes the vehicle seat is rotated by a rotation motor. Moreover, the slide table located below the seat frame is slid in the vehicle front-rear direction by the slide motor.

[0003]

In the above-mentioned conventional vehicle seat device with slide and rotation mechanism, when the load applied to the slide motor and the rotation motor changes, the operation locus of the vehicle seat changes. There was an occasion.
For example, when the vehicle is stopped on a slope, the load on the slide motor increases or decreases depending on the slope of the slope, but the load on the rotation motor hardly changes.
There was a problem that the load applied to the slide motor and the load applied to the rotation motor differed from each other, deviating from the planned operation locus, and continuing the operation with the deviation.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention provides a vehicle seat device with a slide and rotation mechanism that is capable of automatically correcting even when the vehicle seat deviates from a planned movement locus. With the goal.

[0005]

In order to solve the above-mentioned problems, the invention as set forth in claim 1 is directed to a vehicle seat, a slide mechanism capable of sliding the vehicle seat, and a rotation capable of rotating the vehicle seat. A slide motor for driving the slide mechanism is provided in the slide mechanism, and a rotation motor for driving the slide mechanism is provided in the rotation mechanism. The slide mechanism and the rotation mechanism provide a vehicle seat. A vehicle seat device that rotates while sliding along a predetermined locus, and when the vehicle seat is at a predetermined slide position, compares an appropriate rotation position corresponding to the slide position with an actual rotation position. , Bei a controller for controlling the rotational speed of the rotating motor based on the comparison result
However, the control device pre-sets the preset slide position.
Setting slide positions that have been set for each
It is preset as an appropriate rotation position corresponding to the ride position.
The set rotational position and the set position are stored in the vehicle seat.
When the id position is reached, the set slide position
Rotation is performed by comparing the corresponding set rotation position with the actual rotation position.
If the delay is delayed, increase the rotation speed of the rotation motor
The vehicle seat device reduces the rotation speed of the rotation motor if it advances . According to the vehicle seat device of the first aspect, the rotational position corresponding to the sliding position of the vehicle seat is stable and can be automatically corrected even when the vehicle seat deviates from the planned operation locus. Yes, automatically
It is easy to control the work trajectory.

Further, the invention according to claim 2 is provided with a vehicle seat, a slide mechanism capable of sliding the vehicle seat, and a rotating mechanism capable of rotating the vehicle seat. A sliding motor for driving is provided, and a rotating motor for driving the rotating mechanism is provided for the rotating mechanism. For the vehicle, the sliding mechanism and the rotating mechanism rotate the vehicle seat while sliding the vehicle seat on a predetermined locus. In the seat device, when the vehicle seat is at a predetermined rotation position, an appropriate slide position corresponding to the rotation position is compared with an actual slide position, and the slide motor of the slide motor is compared based on the comparison result. A control device for controlling the rotation speed is provided, and the control device is configured to
A plurality of preset rotational positions that have been preset as rotational positions, and
As a proper slide position corresponding to each set rotation position
It stores the preset slide position and presets, and
The rotation speed reaches each set rotation position, the set rotation position at this time
Setting slide position and actual slide position
If the slide is delayed, the slide motor
Increase the rotation speed, and if the slide progresses, slide
A vehicle seat device that reduces the rotational speed of a vehicle. According to the vehicle seat device of the second aspect, the sliding position corresponding to the rotational position of the vehicle seat is stable and can be automatically corrected even when the vehicle seat deviates from the planned operation locus. Yes, control that automatically corrects the movement trajectory
Is easy.

The invention according to claim 3 is provided with a vehicle seat, a slide mechanism capable of sliding the vehicle seat, and a rotating mechanism capable of rotating the vehicle seat. A sliding motor for driving is provided, and a rotating motor for driving the rotating mechanism is provided for the rotating mechanism. For the vehicle, the sliding mechanism and the rotating mechanism rotate the vehicle seat while sliding the vehicle seat on a predetermined locus. In a seat device, when a vehicle seat moves for a predetermined time, an appropriate slide position and an actual slide position corresponding to the moved time, and an appropriate rotational position and an actual rotation corresponding to the moved time by comparing the position, Bei a controller for controlling the rotational speed of the slide motor and the rotating motor based on the comparison result
Well, the control device is preset as the predetermined time
There are multiple set times and the proper time corresponding to each of these set times.
Set slide position preset as slide position,
As an appropriate rotation position corresponding to each of these set times,
The set rotational position and the set rotational position are stored and the vehicle seat is
When moving for a fixed time, the setting switch corresponding to the set time at this time
When comparing the ride position with the actual slide position
In addition, the set rotational position corresponding to the set time at this time and the actual
Compare the rotation position and slide if the slide is delayed
If the slide is moving forward, increase the rotation speed of the motor
With lowering the rotational speed of the ride motor, rotation is slow
If so, increase the rotation speed of the rotation motor, and the rotation advances.
If so, the vehicle seat device reduces the rotation speed of the rotation motor . According to the vehicle seat device of the third aspect, the sliding position and the rotating position of the vehicle seat corresponding to the passage of time are stable, and even when the vehicle seat deviates from the planned movement trajectory, the vehicle seat automatically moves. Can be modified and
It is easy to control the dynamic locus dynamically.

The invention described in claim 4 is the same as claim 1
The vehicle seat apparatus according to any one to three of, includes a slide position detection means for detecting the slide position of the vehicle seat, and a rotational position detecting means for detecting a rotational position of the vehicle seat, the vehicle It is a seat device. Claim 4
According to the vehicle seat device described in (1), it is easy to detect the slide position and the rotation position.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The configuration of an embodiment of the present invention will be described below with reference to the drawings. First, a case where the vehicle seat device 1 according to the present embodiment is set to the passenger seat on the left side of the driver's seat as shown in FIG. 1 will be exemplified. On the left side of the vehicle seat device 1, a door opening D is provided in the vehicle body. In the vicinity of the vehicle seat device 1, for example, a switch unit (not shown) having a boarding switch and a getting-off switch is provided at a position where a seated person can operate. When the getting-off switch is operated (when turned on), the vehicle seat device 1 slides forward from the seated position facing the front in the vehicle traveling direction to the left side (counterclockwise when viewed in plan). It is moved to the "getting on / off position" near the door opening D by rotating it by about 90 °. When the boarding switch is operated (when it is turned on), the vehicle seat device 1 moves from the boarding / alighting position facing the front in the vehicle traveling direction,
The vehicle is slid to the rear of the vehicle and rotated to the right (clockwise when viewed in plan) by approximately 90 ° to move to the seated position. Note that, hereinafter, the vehicle front direction is indicated by an arrow “front”, the door opening D direction is indicated by an arrow “outside”, and the vehicle upper side is indicated by an arrow “up”.

As shown in FIG. 2, the vehicle seat device 1 according to the present embodiment rotates the vehicle seat 2, the seat frame 3 for fixing the vehicle seat 2, and the seat frame 3. The rotating mechanism 400 is provided. Further, a slide table 10 that rotatably supports the seat frame 3, a slide support base 30 that slidably supports the slide table 10 in the vehicle front-rear direction, and a slide mechanism 200 that slides the slide table 10 are provided.

Next, the slide support 30, the slide table 10 and the slide mechanism 200 will be described with reference to FIGS.
It will be described based on. As shown in FIG. 2, the slide support base 30 includes a base 31 formed of a substantially rectangular plate that is long in the front-rear direction of the vehicle. The base 31 is horizontally fixed to the floor of the vehicle. Two left and right fixed side holding members 32, which are long in the front-rear direction, are provided in parallel on the upper surfaces of both ends of the base 31 in the vehicle width direction. Further, inside each of the fixed side holding members 32, a guide plate 33 having a substantially L-shaped cross section is provided in parallel with each of the fixed side holding members 32 at a predetermined interval. A V-shaped groove 32a is formed inside each of the fixed-side holding members 32 in the longitudinal direction. The slide table 10 includes a base 12 formed of a substantially rectangular plate that is long in the front-rear direction, and two left and right moving-side holding members 11 that are long in the front-rear direction are provided on the bottom surfaces of both ends of the base 12 in the vehicle width direction. Are provided in parallel. A V-shaped groove 11a is formed on the outer side of each moving-side holding member 11 in the longitudinal direction.

Holding member 1 for moving side of slide table 10
The width of 1 can be fitted to be substantially equal to the distance between the fixed side holding member 32 of the slide support base 30 and the guide plate 33.
As shown in FIG. 3, the fixed-side holding member 32 of the slide support base 30 and the moving-side holding member 11 of the slide table 10 are shown.
Are arranged such that one side surface thereof faces each other. A V-shaped groove 11a of the moving-side holding member 11 on the opposite surface,
A large number of steel balls 34 are sandwiched between the stationary side holding member 32 and the V-shaped groove 32a, thereby forming a pair of left and right linear guide mechanisms 35. In this way, the slide table 10 can slide in the vehicle front-rear direction.

As shown in FIG. 2, a drive shaft 20a of the sliding motor 20 of the slide mechanism 200 is provided with a screw shaft support member 20b. To the screw shaft support member 20b, a screw shaft 21 having a length approximately equal to the longitudinal direction of the slide support base 30 is connected. Then, the screw shaft 21 rotates according to the rotation of the drive shaft 20a of the sliding motor 20. A slide nut 23 is provided on the screw shaft 21. The nut bracket 22 is connected to the upper end surface of the slide nut 23. The slide motor 20 and the screw shaft support member 20b are fixed below the slide support base 30. The screw shaft 21 is rotatably supported below the slide support base 30. The nut bracket 22 is fixed to the slide table 10. Then, for example, when the sliding motor 20 rotates in the forward direction, the screw shaft 21 rotates in the forward direction. Then, the slide nut 23 and the nut bracket 22 connected to the screw shaft 21 are sent in the front direction of the vehicle. Therefore, the slide table 10 connected to the nut bracket 22 slides in the vehicle front direction. On the other hand, when the sliding motor 20 rotates in the opposite direction, the screw shaft 21
Rotates in the opposite direction. Then, the slide nut 23 and the nut bracket 22 connected to the screw shaft 21 are sent in the rearward direction of the vehicle. Therefore, the nut bracket 22
The slide table 10 connected to the vehicle slides rearward of the vehicle.

Next, the slide table 10, the seat frame 3, and the rotating mechanism 400 will be described with reference to FIGS. 2 and 4. As shown in FIG. 2, the slide table 10
The rotation of the support shaft 40a of the rotation motor 40 located above is converted into horizontal rotation by, for example, a bevel gear and transmitted to the support shaft 40b. The gear 40 is attached to the support shaft 40b.
1 is connected. Further, the gear 41 meshes with the outer ring 51 of the turntable 50. The turntable 50 is an outer ring 51
The outer ring 51 and the inner ring 52 are configured so as to be capable of smooth relative rotation by a large number of steel balls 53 shown in FIG. 4 interposed therebetween. Then, the outer ring 51 meshing with the gear 41 is rotated by the rotation mechanism 40.
The gear 41 and the inner ring 52 are fixed to the slide table 10 below the seat frame 3 above the rotating mechanism 400.
It is fixed to. The vehicle seat 2 is placed on the seat frame 3. Then, for example, the rotation motor 40
When is rotated in the positive direction, the gear 41 rotates counterclockwise as viewed from above. Here, since the outer ring 51 is fixed to the slide table 10, the gear 41 meshes with the outer ring 51 and rotates the outer periphery of the outer ring 51 together with the rotation motor 40 counterclockwise. Further, since the gear 41 is fixed to the seat frame 3, the seat frame 3 also rotates in the vehicle outer direction as the gear 41 rotates. Also,
Since the inner ring 52 is fixed to the seat frame 3,
With the rotation of the seat frame 3, the inner circumference of the outer ring 51 rotates. When the rotation motor 40 rotates in the opposite direction,
The gear 41 rotates clockwise when viewed from above. here,
Since the outer ring 51 is fixed to the slide table 10, the gear 41 meshes with the outer ring 51 while
The outer periphery of 1 rotates clockwise with the rotation motor 40. Further, since the gear 41 is fixed to the seat frame 3, the seat frame 3 also rotates in the vehicle inward direction as the gear 41 rotates. Moreover, since the inner ring 52 is fixed to the seat frame 3, the inner periphery of the outer ring 51 rotates as the seat frame 3 rotates. In this way
The vehicle seat 2 is horizontally rotatable with respect to the slide table 10 together with the seat frame 3. Further, the vehicle seat 2 is attached to the seat frame 3 via a swing-out type elevating / lowering device, and a swing-type elevating / lowering operation of the elevating / lowering device allows a substantially circular shape between the interior and the outside when viewed from the front of the vehicle. It may be capable of moving up and down in an arc. Also,
The vehicle seat 2 is attached to the seat frame 3 via a slide-type elevating device, and at a boarding / alighting position, a slidable elevating operation of the elevating device allows diagonally ascending / descending between the inside and the outside when seen from the front of the vehicle. Good.

Next, the rotation mechanism 400 and the slide mechanism 2
The control of 00 will be described with reference to FIG. A load connecting portion 140 is provided on a spindle 40a of the rotating motor 40. In the present embodiment, in the load connection unit 140,
The support shaft 40 in which the rotation of the support shaft 40a is converted into the horizontal rotation.
The gear 41 is connected to b. The gear 41 is connected to the seat frame 3. Spindle 4 of rotation motor 40
0a is provided with an encoder 141 that outputs a number of pulses according to the rotation speed of the rotation motor 40. The output of the encoder 141 is transmitted to the control device 150 as a rotation motor position detection signal. A power supply connection portion 143 is provided on an end surface of the rotation motor 40 opposite to the support shaft 40a. The output of the encoder 141 is transmitted to the control device 150 as a rotation motor position detection signal. On the other hand, although the configuration around the sliding motor 20 is similar to the configuration around the rotating motor 40, a screw shaft support member 20b is provided at the load connecting portion of the sliding motor 20. The output of the encoder (not shown) of the slide motor 20 is transmitted to the control device 150 as a slide motor position detection signal. The encoder 141 provided in the rotation motor 40 corresponds to the "rotational position detecting means" in the claims. An encoder (not shown) of the slide motor 20 corresponds to "slide position detecting means" in the claims. Control device 150
Determines the rotation position from the rotation motor position detection signal. Also, the slide position is determined from the slide position detection signal. Then, by using a combination of the set slide position and the set rotational position stored in advance in the storage device,
A rotation motor control signal (instructing normal rotation or reverse rotation or stop) is transmitted to the rotation motor control device 142 as necessary. In addition, a slide motor control signal is transmitted to a slide motor control device (not shown) as necessary. Details of the processing of this operation will be described later. The rotation motor control device 142 controls to turn on / off the power supply of the rotation motor 40 in response to the rotation motor control signal. The output terminal of the rotation motor control device 142 is connected to the plus terminal of the power supply connection portion 143 of the rotation motor 40. Further, the input terminal of the rotation motor control device 142 is connected to the motor power supply. Further, the negative terminal of the power supply connection portion 143 is connected to the ground level. The connection of the slide motor control device is similar to that of the rotation motor control device 142.

The rotation motor controller 142 PWM-controls the rotation motor 40. The description will be made with reference to the waveform of the A portion input to the plus terminal of the power supply connection portion of the rotation motor 40. In the PWM control, the width of the ON pulse is changed to control the input power to the rotation motor 40. That is, the rotation speed is controlled by the duty of the pulse (ratio of ON / OFF time of the pulse). As shown in the waveform of the portion A of FIG. 5, when the duty is maximum, the rotation speed is maximum. Further, as shown in the waveform of the A portion of FIG. 5, when the duty is minimum, the rotation speed is minimum. In the present embodiment, the case where the rotation motor control device 142 PWM-controls the rotation motor 40 has been described, but the control device 150 may perform PWM control. That is, the rotation motor control device 142 may be omitted. Further, the slide motor control device is also configured so that the slide motor 20 can be PWM-controlled.

Next, the processing of the present embodiment will be described with reference to FIGS.
It will be described based on the flowchart of FIG. First, the process of the operation of moving the vehicle seat 2 from the "riding position" to the "seating position" by turning on the boarding switch will be described with reference to FIG. The processing of this operation is executed by a CPU (not shown) in the control device 150. Further, the storage device 151 (FIG. 5) in the control device 150 stores in advance the relationship between the set slide position and the set rotational position as shown in FIG. Then, the slide mechanism 200 and the rotation mechanism 400 are controlled so that the operation locus of the vehicle seat 2 follows the relationship between the set slide position and the set rotation position. The set slide position and the set rotational position shown in FIG. 8 are displayed in hexadecimal. First, step S1
At 0, it is determined whether or not the boarding switch is turned on.
Here, the boarding switch is a switch for moving the vehicle seat 2 from the "riding position" to the "seating position". If the boarding switch is on, the process proceeds to step S12.
If the boarding switch is off, the process ends. In step S12, the slide motor 20 and the rotation motor 40 are rotated in the forward direction. That is, the control device 15
0 is a slide motor control device and a slide motor 2
A slide motor control signal for rotating 0 in the forward direction is transmitted. Similarly, the control device 150 transmits a rotation motor control signal for rotating the rotation motor 40 in the forward direction to the rotation motor control device 142. Then, the process proceeds to step S14. In step S14, the slide position and the rotation position of the vehicle seat 2 are detected in an arbitrary cycle, and the process proceeds to step S16. For example, the rotation position of the vehicle seat 2 is detected using the rotation motor position detection signal (output pulse of the encoder 141). Also,
Similarly to the rotation motor 40, the slide motor position detection signal (encoder output pulse) output from the encoder provided in the slide motor 20 is used to detect the slide position of the vehicle seat 2. Step S1
At 6, it is determined whether the slide position and the rotational position are the limit values. If it is the limit value, the process proceeds to step S26. If it is not the limit value, the process proceeds to step S18. The limit value is, for example, a slide position or a rotation position in the sitting position.
In this case, the fact that the limit value has been reached means that the vehicle seat 2 has moved to the slide position or the rotation position corresponding to the sitting position. For example, “E2” of the set slide position shown in FIG. 8 is set as the limit value of the slide position,
"C2" of the set rotation position is set as the limit value of the rotation position. In step S18, it is determined whether the slide position is one of the set slide positions shown in FIG. For example,
If there are six combinations of the set slide position and the set rotation position shown in FIG. 7, the slide position is "30",
If any of "60", "91", "B2", "CA", and "E2", the process proceeds to step S20. If it is not the set slide position, the process returns to step S14. Step S
In step 20, it is determined whether or not the rotation position is the setting rotation position corresponding to the setting slide position adapted in step S18. For example, when the set slide position adapted in step S18 is "30", it is determined whether the rotational position is "70". If the rotational position is "70", it is determined that the rotational position is the set rotational position. When it is determined that it is the set rotation position, the process returns to step S14. If it is determined that the position is not the set rotation position, the process proceeds to step S22. In step S22, it is determined whether the rotational position is larger than the set rotational position. If it is determined that the rotation position is larger than the set rotation position, the process proceeds to step S23. If it is determined that the rotation position is smaller than the set rotation position, step S24
Proceed to. In step S23, the rotation speed of the rotation motor is reduced. This means that the rotational speed is lower than the sliding operation, and thus the rotational speed is reduced. For example,
The control device 150 transmits to the rotation motor control device 142 a rotation motor control signal for rotating the motor in the forward direction at a predetermined rotation speed lower than before. The rotation motor control device 142 performs on / off control (PWM control) of the motor power source using the rotation motor control signal,
The rotation speed of the rotation motor 40 is reduced. Then, the process returns to step S14. In step S24, the rotation speed of the rotation motor is increased. This means increasing the rotation speed because the rotation operation is slower than the slide operation.
This process is the same as the case of lowering the rotation speed in step S23. Then, the process returns to step S14. Further, in step S26, it is determined that the vehicle seat 2 has moved to the "seating position", the sliding motor and the rotation motor are turned off, and the process is ended. It should be noted that the operation may be stopped if the boarding switch is turned off before the processing ends in step S12 and subsequent steps shown in FIG. In this case, the operation is continued by continuing to operate the boarding switch.

Next, the processing of the operation of moving the vehicle seat 2 from the "seating position" to the "riding position" by turning on the getting-off switch will be described with reference to FIG. First, in step S30, it is determined whether or not the getting-off switch is turned on. Here, the getting-off switch is a switch for moving the vehicle seat 2 from the "seating position" to the "embarking position". If the exit switch is on, step S32
Proceed to. If the exit switch is off, the process ends. In step S32, the slide motor 20 and the rotation motor 40 are rotated in the forward direction. That is, the control device 150 transmits a slide motor control signal for rotating the slide motor 20 in the reverse direction to the slide motor control device. Similarly, the control device 150
Transmits a rotation motor control signal for rotating the rotation motor 40 in the reverse direction to the rotation motor control device 142. Then, the process proceeds to step S34. Step S34
Then, the slide position and the rotation position of the vehicle seat 2 are detected in an arbitrary cycle, and the process proceeds to step S36. For example,
The rotation position of the vehicle seat 2 is detected using the rotation motor position detection signal (output pulse of the encoder 141). Further, like the rotation motor 40, the slide motor position detection signal (encoder output pulse) output from the encoder provided in the slide motor 20 is used to detect the slide position of the vehicle seat 2. . In step S36, it is determined whether the slide position and the rotational position are the limit values. If it is the limit value, the process proceeds to step S46. If it is not the limit value, the process proceeds to step S38. The limit value is, for example, a slide position or a rotation position at the entry / exit position. In this case, reaching the limit value means that the vehicle seat 2 has moved to the slide position or the rotation position corresponding to the entry / exit position. For example, the slide position “0” is the limit value of the slide position, and the rotation position “0” is the limit value of the rotation position. In step S38, it is determined whether the slide position is one of the set slide positions shown in FIG. For example, if there are six combinations of the set slide position and the set rotation position shown in FIG. 8, the slide positions are “30”, “60”, “9”.
If any of "1", "B2", "CA", and "E2", the process proceeds to step S40. If it is not the set slide position, the process returns to step S34. In step S40, it is determined whether or not the rotation position is the setting rotation position corresponding to the setting slide position adapted in step S38. For example, when the set slide position adapted in step S38 is "30", it is determined whether the rotational position is "70". If the rotational position is "70", it is determined that the rotational position is the set rotational position. When it is determined that it is the set rotation position, the process returns to step S34. If it is determined that the position is not the set rotation position, the process proceeds to step S42. In step S42, it is determined whether the rotational position is larger than the set rotational position. If it is determined that the rotation position is larger than the set rotation position, the process proceeds to step S43. If it is determined that the rotation position is smaller than the set rotation position, the process proceeds to step S44. In step S43, the rotation speed of the rotation motor is increased.
This is because the rotation operation is slower than the slide operation,
It means increasing the rotation speed. For example, the control device 1
50 transmits to the rotation motor control device 142 a rotation motor control signal for rotating in the reverse direction at a predetermined rotation speed higher than before. Rotation motor control device 1
42 uses the rotation motor control signal to perform on / off control (PWM control) of the motor power supply to increase the rotation speed of the rotation motor 40. Then, the process returns to step S34. In step S44, the rotation speed of the rotation motor is reduced. This means that the rotation speed is lower than the slide operation, so that the rotation speed is reduced. This process is similar to the case of increasing the rotation speed in step S43. Then, the process returns to step S34. Also, step S
At 46, it is determined that the vehicle seat 2 has moved to the "getting on / off position", the slide motor and the rotation motor are turned off, and the process ends. Note that the operation may be stopped if the getting-off switch is turned off before the processing is ended in step S32 and subsequent steps shown in FIG. In this case, the operation is continued by continuing to operate the getting-off switch.

The relationship between the set slide position and the set rotational position shown in FIG. 7 of the present embodiment is an example, and by changing the correspondence between the set slide position and the set rotational position,
The amount of slide and the amount of rotation can be adjusted. That is, the operation locus of the vehicle seat 2 can be changed without changing the configuration (mechanism) of the vehicle seat device 1. Further, since the rotating operation and the sliding operation are performed in synchronization with each other, for example, even if there is a change in the load, a constant operation locus can be obtained by following the change. Further, although the combination of the set slide position and the set rotational position is set to six types, any number of types may be used. The larger the number, the more accurate the trajectory can be obtained. In the present embodiment, the slide mechanism 200 is used as the slide motor 2.
0, the rotation mechanism 400 is provided with a rotation motor 40. This eliminates the need for a gear or the like for converting a sliding operation into a rotating operation or converting a rotating operation into a sliding operation as in the case of a single motor. Therefore, the installation space can be small. Also,
It doesn't require big gears, so it's aesthetically pleasing. In the present embodiment, the rotation position is compared with the set rotation position corresponding to the slide position with the slide position as the reference, and the rotation motor 40 is controlled as described above. May be compared with the set slide position corresponding to the rotation position, and the slide motor 20 may be PWM-controlled. Further, both the slide motor 20 and the rotation motor 40 are PWM-controlled so that both the slide position and the rotation position become the set slide position and the set rotation position with reference to the elapsed time when the vehicle seat 2 moves. You may. In this case, for example, when an abnormality occurs and the movement of the vehicle seat 2 is stopped midway, the elapsed time is not counted. Then, from the time when the movement of the vehicle seat 2 is resumed, the elapsed time is cumulatively counted again. (Corresponding to claim 3.) Although both the rotation motor 40 and the slide motor 20 are PWM-controllable, one of them may be used. For example, the rotation motor control device 1
Only 42 may have a configuration in which the rotation speed can be changed by PWM control. Although PWM control is used for each motor, other control methods may be used as long as the rotation speed can be changed. Further, in the present embodiment, it is determined whether the vehicle seat 2 is in the sitting position or in the entry / exit position by the limit value of the set slide position or the set rotational position, but it may be determined by a limit switch, for example. However, they may be used in combination. The configuration and operation of the present invention are not limited to this embodiment.

[0020]

As described above, according to the vehicle seat device of the present invention, it is possible to automatically correct even if the vehicle seat deviates from the planned operation locus.
Therefore, it is easy to automatically control the operation locus.
Further, according to the vehicle seat device of the fourth aspect , it is easy to detect the slide position and the rotation position.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an embodiment of a vehicle seat device of the present invention.

FIG. 2 is a schematic view of an embodiment of a vehicle seat device of the present invention.

FIG. 3 is an explanatory diagram of a slide mechanism of a slide table.

FIG. 4 is an explanatory view of a rotation mechanism of a seat frame.

FIG. 5 is an explanatory diagram of PWM control of a rotation motor.

FIG. 6 is a flowchart showing the operation of the present embodiment.

FIG. 7 is a flowchart showing the operation of the present embodiment.

FIG. 8 is a diagram showing a relationship between a set slide position and a set rotational position.

[Explanation of symbols]

1 Vehicle seat device 2 Vehicle seat 3 seat frame 10 slide table 20 Slide motor 21 screw shaft 22 Nut bracket 23 Slide nut 30 slide support 40 rotation motor 41 gears 50 turntable 51 outer ring 52 Inner ring 141 encoder 142 Rotation motor control device 150 control device 151 storage device

─────────────────────────────────────────────────── --- Continuation of the front page (72) Inventor Kenji Murabayashi 100 Kanayama, Ichiriyama-cho, Kariya city, Aichi Toyota Auto Body Co., Ltd. (72) Kenji Horiguchi 100 Kanayama, Ichiriyama-cho, Kariya city, Aichi Toyota (56) References Japanese Patent Laid-Open No. 63-284043 (JP, A) Actual Development 7-4149 (JP, U) Special Table 8-500561 (JP, A) (58) Fields investigated (Int .Cl. ⁷ , DB name) B60N 2/00-2/54 A47C 1/023

Claims (4)

(57) [Claims] 1. A vehicle seat, a slide mechanism capable of sliding the vehicle seat, and a rotation mechanism capable of rotating the vehicle seat, wherein the slide mechanism is provided with a sliding motor for driving the vehicle seat. A vehicle seat device that is provided with a rotation motor that drives the rotation mechanism, and that rotates the vehicle seat while sliding the vehicle seat along a predetermined locus by the slide mechanism and the rotation mechanism. there when in a predetermined slide position, by comparing the actual rotational position and the correct rotational position corresponding to the slide position, a control device for controlling the rotational speed of the rotating motor based on the comparison result , The control device is preset as the predetermined slide position.
Multiple set slide positions and the slides for each of these settings.
Preset as the proper rotation position corresponding to the
Stores the constant rotation position and the vehicle seat slides each setting
When the position is reached, it corresponds to the set slide position at this time.
Compare the set rotation position with the actual rotation position, and rotate slowly.
If so, increase the rotation speed of the rotation motor, and the rotation advances.
If so, a vehicle seat device that reduces the rotation speed of the rotation motor . 2. A vehicle seat, a slide mechanism capable of sliding the vehicle seat, and a rotation mechanism capable of rotating the vehicle seat, wherein the slide mechanism is provided with a sliding motor for driving the vehicle seat. A vehicle seat device that is provided with a rotation motor that drives the rotation mechanism, and that rotates the vehicle seat while sliding the vehicle seat along a predetermined locus by the slide mechanism and the rotation mechanism. there when in the predetermined rotational position is compared with the actual slide position an appropriate slide position corresponding to the rotational position, a control device for controlling the rotational speed of the slide motor on the basis of the comparison result , The control device is preset as the predetermined rotation position.
Corresponding to multiple set rotation positions and each of these set rotation positions
Set the preset slide as the proper slide position
The vehicle seat reaches each set rotational position.
When it reaches, the setting slide corresponding to the setting rotation position at this time
Slide position is compared with the actual slide position.
If so, increase the rotation speed of the slide motor to
If the drive is advanced, reduce the rotation speed of the slide motor.
A vehicle seat device. 3. A vehicle seat, a slide mechanism capable of sliding the vehicle seat, and a rotation mechanism capable of rotating the vehicle seat, wherein the slide mechanism is provided with a sliding motor for driving the vehicle seat. A vehicle seat device that is provided with a rotation motor that drives the rotation mechanism, and that rotates the vehicle seat while sliding the vehicle seat along a predetermined locus by the slide mechanism and the rotation mechanism. Is moved for a predetermined time, the proper slide position and the actual slide position corresponding to this moved time,
And, by comparing the actual rotational position and the correct rotational position corresponding to the moved time, a control device for controlling the rotational speed of the slide motor and the rotating motor based on the comparison result, wherein The control device has a plurality of preset times as the predetermined time.
Set time, and the appropriate slurs corresponding to each of these set times.
Set slide position preset as id position and this
Preset as an appropriate rotational position corresponding to each set time
The set rotational position is stored and the vehicle seat is set at each setting.
When moving for a while, the setting slide corresponding to the set time at this time
The slide position and the actual slide position, and
Set rotation position and actual rotation position corresponding to the set time at
If the slide is delayed, the slide mode is compared.
Increase the rotation speed of the
The rotation speed of the motor is reduced and the rotation is delayed.
If so, increase the rotation speed of the rotation motor and allow the rotation to proceed.
For example, a vehicle seat device that reduces the rotation speed of the rotation motor . 4. A vehicle seat apparatus according to any one of claims 1 to 3, a slide position detection means for detecting the slide position of the vehicle seat, the rotational position for detecting the rotational position of the vehicle seat A vehicle seat device comprising a detection means.