JP2008230343A - Seat control device and seat control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable an occupant to speedily get on and off a rear part seat by improving the sliding speed of a seat cushion in walk-in motion, without complicating a control circuit or enlarging a motor. <P>SOLUTION: This seat control device is constituted of: the sliding motor 1 to drive the seat cushion in the longitudinal direction; a driving means to drive the sliding motor in the longitudinal direction; an operation switch to operate the sliding motor in the longitudinal direction to move the seat cushion in the longitudinal direction and; a control means to drive and control the sliding motor to advance or to retreat the seat cushion by inputting of the operation switch. The sliding motor has; a brush L for low speed rotation; a brush H for high speed rotation and; an electric power source brush D, and a CPU 3 rotates the sliding motor at high speed by driving the brush for high speed rotation by the driving means in the walk-in motion to advance the seat cushion and advances the seat cushion. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a seat control device and a seat control method for controlling, for example, a walk-in operation and a return operation of a power seat in a passenger seat of a vehicle.

  Conventionally, in order to make it easy to get on and off the rear seat of a two-door type vehicle such as a coupe type or a one-box type vehicle, for example, the seat back (back portion) of the passenger side seat is tilted and the seat cushion ( 2. Description of the Related Art A walk-in mechanism that slides a seat surface forward is known.

  Conventionally, a walk-in mechanism for operating a seat back and a seat cushion by an actuator such as a motor is also known.

JP-A-6-328773

  However, in the method of operating the walk-in mechanism using the motor described above, a passenger who is actually seated on the seat cushion uses a motor for changing the front and rear position of the seat cushion when getting on and off the rear seat. In order to slide the seat cushion, the sliding speed of the seat cushion is slow, and there has been a demand to complete the sliding of the seat cushion in a short time.

  On the other hand, in the past, it has been proposed to control the voltage supplied to the motor by PWM control or boost control, but the control circuit becomes complicated and the sliding speed of the seat cushion cannot be realized sufficiently was there. Furthermore, in consideration of normal position adjustment such as adjusting the front / rear position of the seat cushion in a state where an occupant is seated, there is a problem that the motor becomes large.

  Therefore, the present invention has been proposed in view of the above-described circumstances, and can improve the sliding speed of the seat cushion during the walk-in operation without increasing the complexity of the control circuit and the size of the motor. It is another object of the present invention to provide a seat control device and a seat control method capable of getting into and out of the rear seat.

  According to the first aspect of the present invention, there is provided a slide motor for driving the seat cushion in the front-rear direction, a drive unit for driving the slide motor in the front-rear direction, and a slide motor in the front-rear direction for moving the seat cushion in the front-rear direction. In a seat control device comprising an operation switch operated when driving and a control means for driving and controlling the slide motor to move the seat cushion forward or backward by operation of the operation switch, the slide motor includes a low-speed rotation brush and a high-speed rotation. The control means is configured to drive the high-speed rotation brush with the driving means to rotate the slide motor at a high speed and advance the seat cushion during the walk-in operation for advancing the seat cushion. Features.

  According to a second aspect of the present invention, in the seat control apparatus according to the first aspect, the control means drives the brush for high speed rotation by the driving means during the return operation from the walk-in operation of the seat cushion, and the slide motor Is rotated at a high speed to retract the Seki seat cushion.

  According to a third aspect of the present invention, in the seat control device according to the first or second aspect, the low-speed rotation brush, the high-speed rotation brush, and the power supply brush that drive the seat back in the forward or backward tilt direction. A reclining motor, a reclining motor driving means for driving the reclining motor in a forward or backward tilt direction, and operating the reclining motor in the front-rear direction to move the seat back in the forward or backward tilt direction The reclining operation switch is further provided, and the control means drives the high-speed rotating brush by the reclining motor driving means during the walk-in operation for tilting the seat back forward to rotate the reclining motor at a high speed so that the seat back is moved forward. It is characterized by tilting.

  According to a fourth aspect of the present invention, in the seat control method for moving the seat cushion forward or backward by driving the slide motor, when the seat cushion is moved in the front-rear direction for position adjustment, the low-speed rotating brush and the high-speed brush of the slide motor are used. When the slide motor is driven using the low-speed rotation brush among the rotation brushes and moved in the forward direction of the seat cushion in the walk-in operation of the seat cushion, the low-speed rotation brush and the high-speed rotation brush of the slide motor The slide motor is driven using a high-speed rotating brush.

  According to a fifth aspect of the present invention, in the seat control method according to the fourth aspect, when the seat back is moved in the front-rear direction for reclining adjustment, the low-speed rotating brush of the reclining motor is driven by the driving means, When the seat back is moved in the forward tilt direction of the seat back in the walk-in operation, the high-speed rotating brush of the reclining motor is driven by the driving means.

  According to the first aspect of the present invention, at the time of the walk-in operation for moving the seat cushion forward, the high-speed rotating brush is driven by the driving means to rotate the slide motor at a high speed, thereby moving the seat cushion forward. Since the forward movement of the seat cushion in the operation can be performed at high speed, it is possible to make it possible to get on and off the rear seat in a short time.

  By using a three-brush motor having a high-speed rotating brush as the slide motor, the seat cushion can be promptly walked in without complicating the control circuit or increasing the size of the motor.

  In the walk-in operation, the torque generated when using the high-speed rotating brush of the slide motor is smaller than the torque generated when the low-speed rotating brush is driven. It is possible to improve safety when touching the seat.

  According to the invention described in claim 2, when the seat cushion is restored from the walk-in operation, the high-speed rotation brush is driven by the driving means to rotate the slide motor at a high speed, and the seat cushion is retracted. The seat cushion can be restored from the walk-in state in a short time.

  According to the invention described in claim 3, during the walk-in operation for tilting the seat back forward, the reclining motor is rotated at a high speed by driving the brush for high speed rotation by the driving means, and the seat back is tilted forward. There is no need to tilt the seat back, and the forward movement of the seat cushion in the walk-in operation can be performed at high speed, so that the passenger can get on and off the rear seat in a short time.

  According to the fourth aspect of the present invention, when the seat cushion is moved in the forward direction in the walk-in operation of the seat cushion, the high-speed rotation brush of the slide motor is driven by the driving means, thereby the seat in the walk-in operation. Since the forward movement of the cushion can be performed at high speed, it is possible to make it possible to get on and off the rear seat in a short time.

  By using a three-brush motor having a high-speed rotating brush as the slide motor, the seat cushion can be promptly walked in without complicating the control circuit or increasing the size of the motor.

  In the walk-in operation, the torque generated when using the high-speed rotating brush of the slide motor is smaller than the torque generated when the low-speed rotating brush is driven. It is possible to improve safety when touching the seat.

  According to the invention described in claim 5, when the seat back is moved in the forward tilt direction in the walk-in operation of the seat back, the seat back is tilted by driving the high-speed rotating brush of the reclining motor with the driving means. This is unnecessary, and the seat cushion can be moved forward in the walk-in operation at a high speed, so that the passenger can get on and off the rear seat in a short time.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of a seat control apparatus showing a first embodiment of the present invention, and FIG. 2 is a time chart of the seat control apparatus showing a first embodiment of the present invention.

  The present invention is applied to, for example, a seat control apparatus configured as shown in FIG. This seat control device controls a seat device having a seat cushion (not shown). The seat device is a power seat with a mechanical slide mechanism and a walk-in mechanism (not shown). The driving force generated by the slide motor 1 connected to the slide mechanism is transmitted to the slide mechanism to slide the seat cushion in the front-rear direction and adjust its position.

  This seat control device controls a passenger seat side seat device mounted on, for example, a two-door type vehicle, and controls the sliding of the seat cushion toward the front of the vehicle when the passenger gets on and off the rear seat. Do.

  The seat control device includes a slide motor 1 that generates a driving force for sliding a seat cushion in the vehicle front-rear direction, a low-speed motor drive circuit 2A, a high-speed motor drive circuit 2B, and a power supply motor that are drive means for the slide motor 1. A drive circuit 2C and a CPU 3 as control means are provided. The slide motor 1 is a three-brush motor including a low-speed rotating brush (low-speed rotating terminal) L, a high-speed rotating brush (high-speed rotating terminal) H, and a common power supply brush (power-supply terminal) D.

  The low-speed motor drive circuit 2A, which is a drive means of the slide motor 1, is connected to the low-speed rotation brush L, the high-speed motor drive circuit 2B is connected to the high-speed rotation brush H, and the power supply motor drive circuit 2C It is connected to the brush D. Each low-speed motor drive circuit 2A, high-speed motor drive circuit 2B, and power supply motor drive circuit 2C are connected to the CPU 3.

  The seat control device includes a seat cushion forward switch 4 operated by a passenger in the passenger seat and a seat cushion backward switch 5, and the seat cushion forward switch 4 and the seat backward switch 5 provide a seat slide adjustment switch input circuit 6. Via the CPU 3. A seat back forward tilt detection switch 7, a seat cushion advance detection switch 8, a seat back return position detection switch 9, and a seat cushion return position detection switch 10 that detect the positions of the seat cushion and the seat back are a walk-in switch input circuit. 11 is connected to the CPU 3. These detection switches 7, 8, 9, and 10 are constituted by limit switches attached to the seat.

  When the seat cushion forward switch 4 is operated while the passenger is seated in the passenger seat, the operation of the seat control device is input to the CPU 3 via the seat slide adjustment input circuit 6, and the CPU 3 The low-speed motor drive circuit 2A and the power supply motor drive circuit 2C are turned on, the slide motor 1 is rotated in the forward direction by low-speed operation, and the seat cushion is advanced and adjusted to an arbitrary position. When the seat cushion retreat switch 5 is operated, the CPU 3 turns on the low speed motor drive circuit 2A and the power supply motor drive circuit 2C to rotate the slide motor 1 in the retreat direction at a low speed operation, thereby retreating the seat cushion. Adjust to any position. As a result, the seat cushion moves at a low speed, and fine adjustment of the seat cushion can be facilitated.

  In the first embodiment of the present invention, when a passenger in the rear seat gets on and off by causing the passenger seat to walk-in, the walk-in operation pedal attached to the seat is operated to tilt the seat back forward. When the seat back is tilted forward, the seat back forward tilt detection switch 7 is turned on at time t1 shown in FIG. 2, and an on-state signal of the seat back forward tilt detection switch 7 is sent to the CPU 3 via the walk-in switch input circuit 11. Entered. In response to this, the CPU 3 turns on the high-speed motor drive circuit 2B and the power-supply motor drive circuit 2C to rotate the slide motor 1 in the forward direction at a high speed to advance the seat cushion. When the slide motor 1 advances the seat cushion at a high speed and the seat cushion moves to the most advanced position at time t2, the seat cushion advance position detection switch 8 is turned on. When the on-state signal of the seat cushion advance position detection switch 8 is input to the CPU 3 via the walk-in switch input circuit 11, the CPU 3 turns off the high-speed motor drive circuit 2B and the power supply motor drive circuit 2C to slide. The high speed operation of the motor 1 is stopped. Thereby, in a state where the seat back is tilted forward, the seat cushion moves to the most advanced position, and it is easy to get on and off the rear seat.

  Next, when the passenger gets on and off the rear seat and returns the seat device, as shown at time t3 in FIG. 2, the seat cushion advance position detection switch 8 is on and the seat back is returned to the original position. The seat back return position detection switch 9 is turned on. When an on-state signal of the seatback return position detection switch 9 is input to the CPU 3 via the walk-in switch input circuit 11, the CPU 3 turns on the high-speed motor drive circuit 2B and the power supply motor drive circuit 2C, and the slide motor 1 is moved backward at high speed.

  When the seat cushion is returned to the original position by the backward movement operation of the slide motor 1 at a high speed, the seat cushion rearward return position detection switch 10 is turned on as shown at time t4 in FIG. An on-state signal of the switch 10 is input to the CPU 3 via the walk-in switch input circuit 11, and the CPU 3 turns off the high-speed motor drive circuit 2B and the power supply motor drive circuit 2C to stop the high-speed operation of the slide motor 1. To do. Thereby, the seat back and the seat cushion return to the state before the walk-in operation.

  The high-speed rotating brush H of the slide motor 1 generates less torque than the low-speed rotating brush L. However, since the occupant is not seated on the seat device, the seat cushion can be slid forward or backward. The torque becomes sufficient, and the walk-in operation and the return operation can be performed at high speed without any problem.

  In this embodiment, the return operation from the walk-in operation of the seat cushion is returned at a high speed using the high speed rotating brush H of the slide motor 1, but the seat belt is mounted when riding on the rear seat. In consideration of the seating time such as, the return time can be delayed by using the low-speed rotating brush L of the slide motor 1.

  As described above, according to the first embodiment, during the walk-in operation for advancing the seat cushion, the high-speed rotation brush is driven by the driving means to rotate the slide motor 1 at a high speed to advance the seat cushion. Thus, the forward movement of the seat cushion in the walk-in operation can be performed at high speed, so that the passenger can get on and off the rear seat in a short time.

  Then, by making the slide motor 1 a 3-brush motor having a high-speed rotating brush, the seat cushion can be promptly walked in without complicating the control circuit or increasing the size of the motor.

  In the walk-in operation, the torque generated when the high-speed rotating brush H of the slide motor 1 is used is smaller than the torque generated when the low-speed rotating brush L is driven. The safety when touching the moving seat device can be improved.

  FIG. 3 is a block diagram showing the configuration of the seat control apparatus showing the second embodiment of the present invention, and FIG. 4 is a flowchart of the seat control apparatus showing the second embodiment of the present invention.

  As shown in FIG. 3, the seat control apparatus of the second embodiment is similar to the first embodiment described above, and includes a slide motor 1 that generates a driving force that slides the seat cushion in the vehicle front-rear direction, and driving of the slide motor 1. A low-speed motor drive circuit 2A, a high-speed motor drive circuit 2B, a power supply motor drive circuit 2C, which are means, and a CPU 3 which is a control means are provided.

  The slide motor 1 is a three-brush motor including a low-speed rotation brush (low-speed rotation terminal) L, a high-speed rotation brush (high-speed rotation terminal) H, and a common power supply brush (power supply terminal) D. The low-speed motor drive circuit 2A, which is a drive means of the slide motor 1, is connected to the low-speed rotation brush L, the high-speed motor drive circuit 2B is connected to the high-speed rotation brush H, and the power supply motor drive circuit 2C It is connected to the brush D. Each low-speed motor drive circuit 2A, high-speed motor drive circuit 2B, and power supply motor drive circuit 2C are connected to the CPU 3. The seat control device includes a seat cushion advance switch 4 and a seat cushion retract switch 5 operated by a passenger in the passenger seat, and the seat cushion advance switch 4 and the seat retract switch 5 are connected to the CPU 3 via the seat slide adjustment switch input circuit 6. It is connected to the.

  The slide motor 1 is provided with a rotation sensor 12 using two Hall elements, and the rotation sensor 12 is connected to the CPU 3. The rotation sensor 12 generates a pulse signal while the slide motor 1 is rotating, and the CPU 3 receives this pulse signal, and calculates the current position of the seat cushion by adding and subtracting the rotation direction and the number of pulses of the slide motor 1. The current position is stored in the memory of the CPU 3.

  And in 2nd Embodiment, as shown in FIG. 3, in addition to the slide control to the front-back direction of a seat cushion, a seat control apparatus front-seats by the reclining motor 13 connected with the reclining mechanism of a seat back. Adjust to any angle by tilting or tilting backward.

  The reclining motor 13 includes a low-speed rotating brush (low-speed rotating terminal) L, a high-speed rotating brush (high-speed rotating terminal) H, and a common power brush (power-supply terminal) D, like the slide motor 1. There are three brush motors. The low-speed motor drive circuit 14A, which is the driving means for the reclining 13, is connected to the low-speed rotation brush L, the high-speed motor drive circuit 14B is connected to the high-speed rotation brush H, and the power supply motor drive circuit 14C is connected to the power supply brush D. Has been. Each low speed motor drive circuit 14A, high speed motor drive circuit 14B, and power supply motor drive circuit 14C are connected to the CPU 3.

  The seat control device includes a seat back forward tilt switch 15 and a seat back rearward tilt switch 16 operated by a passenger in the passenger seat, and the seat back forward tilt switch 15 and the seat back rearward tilt switch 16 are input to the reclining adjustment switch. The circuit 3 is connected to the CPU 3.

  The reclining motor 13 is provided with a rotation sensor 23 using two Hall elements, and the rotation sensor 23 is connected to the CPU 3. The rotation sensor 23 generates a pulse signal while the reclining motor 13 is rotating, and the CPU 3 receives this pulse signal, and calculates the current angle of the seat back by adding and subtracting the rotation direction and the number of pulses of the reclining motor 13. The current angle is stored in the memory of the CPU 3.

  In addition, a switch for a walk-in mechanism when a passenger in the rear seat gets on and off is provided. These switches are operated in conjunction with a driver-seat-side walk-in operation switch 18 provided near the driver's seat, a driver-seat-side return switch 19 provided near the driver's seat, and a walk-in operation pedal provided in the passenger seat. A pedal switch 20 and a passenger seat side return switch 21 provided in the passenger seat are provided, and these switches are connected to the CPU 3 via a walk-in switch input circuit 22.

  The operation of the seat control device including such a reclining motor 13 is performed by operating the seat back forward tilt switch 15 via the reclining adjustment switch input circuit 17 when the passenger is seated in the passenger seat. Input to the CPU 3, the CPU 3 turns on the low-speed motor drive circuit 14A and the power supply motor drive circuit 14C, rotates the reclining motor 13 in the forward tilt direction at a low speed operation, and tilts the seat back forward to an arbitrary position. Adjust to. Further, when the seat back backward tilt switch 16 is operated, the CPU 3 turns on the low speed motor drive circuit 14A and the power source motor drive circuit 14C, and rotates the reclining motor 14 in the backward tilt direction at a low speed operation, so that the seat back is moved. Tilt back and adjust to any position.

  Next, the walk-in operation of the seat control apparatus configured as described above will be described with reference to the flowchart shown in FIG.

  First, in step S1, the seat control device determines whether or not to start the walk-in operation of the seat device by determining whether or not the driver's seat side walk-in operation switch 18 is turned on. If it is determined that the driver's seat side walk-in operation switch 18 is turned on, the process proceeds to step S3. If it is determined that the driver's seat side walk-in operation switch 18 is not turned on, the process proceeds to step S2. In step S2, it is determined whether or not the operation pedal switch 20 provided in the passenger seat is turned on. If it is determined that the operation pedal switch 20 is turned on, the process proceeds to step 3, and if it is determined that the operation pedal switch 20 is not turned on, the process proceeds to step S11.

  In step S3, the CPU 3 determines whether or not the value of the sheet return position flag is “1”. If the value of the seat return position flag is “1” in step S3, it is assumed that the seat device is in the normal seating position, and the process proceeds to step S4 to perform the walk-in operation of the seat device. If it is not “1”, the CPU 3 terminates the process without performing the walk-in operation.

  In step S4, the CPU 3 turns on the high-speed rotation motor drive circuit 14B and the power supply motor drive circuit 14C, rotates the reclining motor 13 in the forward tilt direction at high speed, and starts an operation of tilting the seat back forward. . At this time, the position of the seat back before starting the forward tilting operation is stored in the memory by the CPU 3.

  In the next step S5, it is determined whether or not the seat back has reached a predetermined forward tilt position. At this time, the CPU 3 calculates the current position of the seat back by calculating the number of pulses generated from the rotation sensor 23 by the rotation of the reclining motor 13, and is stored in the calculated current position of the seat back and the memory. A predetermined forward tilt position is compared.

  If the current position of the seat back has not reached the predetermined forward tilt position, the process returns to step S4, the reclining motor 13 is rotated at a high speed in the forward tilt direction, and the forward tilt operation of the seat back is continued. When the position reaches a predetermined forward tilt position, the process proceeds to step S6. In step S6, the CPU 3 turns off the high-speed rotation motor drive circuit 14B and the power supply motor drive circuit 14C, stops driving the reclining motor 13, and proceeds to step S7.

  In step S7, the high-speed motor drive circuit 2B and the power supply motor drive circuit 2C are turned on, the seat slide motor 1 is rotated in the forward direction at a high speed, and the operation of advancing the seat cushion is started. At this time, the position of the seat cushion before starting the forward movement operation is stored in the memory by the CPU 3.

  In the next step S8, it is determined whether or not the seat cushion has reached a predetermined forward position. At this time, the CPU 3 calculates the current position of the seat cushion by calculating the number of pulses generated by the rotation sensor 12 as the slide motor 1 rotates, and is stored in the calculated current position of the seat cushion and the memory. A predetermined forward tilt position is compared.

  If the current position of the seat cushion has not reached the predetermined forward position, the process returns to step S7, the slide motor 1 is rotated in the forward direction at a high speed, the forward movement of the seat back is continued, and the current position of the seat cushion is predetermined. When the forward position is reached, the process proceeds to step S9. In step S9, the CPU 3 turns off the high-speed rotation motor drive circuit 2B and the power supply motor drive circuit 2C, stops driving the slide motor 1, and proceeds to step S10. Thereby, the walk-in operation of the passenger seat can be performed at high speed.

  In step S10, since the walk-in operation of the passenger seat is completed and the passenger seat is in the walk-in state, the CPU 3 sets the walk-in state flag to “1” to prepare for the passenger seat return operation. The return position flag is changed to “0” and the process is terminated.

  Next, the return operation from the walk-in state by the seat control device will be described.

  In step 11 after the negative determination is made in step S2 described above, the CPU 3 determines whether or not the return operation from the walk-in state is started by determining whether or not the driver seat side return switch 19 is turned on. To do. When it is determined that the driver's seat side return switch 19 is turned on, the process proceeds to step S13, and when it is determined that the driver's seat side return switch 19 is not operated, the process proceeds to step S12.

  In step S12, it is determined whether or not the passenger seat side return switch 21 provided in the passenger seat is turned on. If it is determined that the passenger seat side return switch 21 is turned on, the process proceeds to step 13, and if it is determined that the passenger seat side return switch 21 is not turned on, the CPU 3 ends the process.

  In step S13, the CPU 3 determines whether or not the value of the walk-in state flag is “1”. If the value of the walk-in state flag is “1” in step S13, it is assumed that the seat device is in the walk-in state, and the process proceeds to step S14 to perform the return operation of the seat device, and the walk-in state flag is “1”. If not, the CPU 3 ends the process without performing the return operation.

  In step S <b> 14, the CPU 3 turns on the high-speed rotation motor drive circuit 14 </ b> B and the power supply motor drive circuit 14 </ b> C, rotates the reclining motor 13 in the backward tilt direction at high speed, and starts an operation of tilting the seat back backward. .

  In step S15, it is determined whether or not the seat back has returned to the position before starting the walk-in operation, that is, the storage position stored in the memory of the CPU 3. At this time, the CPU 3 calculates the current position of the seat back by calculating the number of pulses generated by the rotation sensor 23 as the reclining motor 13 rotates, and the stored current position of the seat back and the memory stored in the memory. The position, that is, the return position is compared. If the current position of the seat back has not reached the return position, the process returns to step S14, the reclining motor 13 is rotated at a high speed in the backward tilt direction, and the backward tilting operation of the seat back is continued to return the current position of the seat back. When the position is reached, the process proceeds to step S16.

  In step S16, the CPU 3 turns off the high-speed rotation motor drive circuit 14B and the power supply motor drive circuit 14C, stops the driving of the reclining motor 13, and proceeds to step S17.

  In step S17, the high-speed motor drive circuit 2B and the power supply motor drive circuit 2C are turned on, the seat slide motor 1 is rotated in the reverse direction at a high speed, and the operation of retracting the seat cushion is started.

  In step S18, it is determined whether or not the seat cushion has returned to the position before starting the walk-in operation, that is, the storage position stored in the memory of the CPU 3. At this time, the CPU 3 calculates the current position of the seat cushion by calculating the number of pulses generated by the rotation sensor 12 as the slide motor 1 rotates, and is stored in the calculated current position of the seat cushion and the memory. Compare the return tilt position.

  If the current position of the seat cushion has not reached the return position, the process returns to step S17, the slide motor 1 is rotated in the backward direction at a high speed, and the backward movement of the seat cushion is continued, so that the current position of the seat cushion becomes the return position. If it reaches, it will progress to step S19. In step S19, the CPU 3 turns off the high-speed rotation motor drive circuit 14B and the power supply motor drive circuit 14C, stops the driving of the reclining motor 13, and proceeds to step S19. As a result, the passenger seat can be returned from the walk-in state at a high speed.

  In step S20, since the return operation of the passenger seat from the walk-in state has been completed and the passenger seat has returned to the return state, the CPU 3 sets the walk-in state flag to “0” and performs the walk-in operation of the passenger seat. In preparation, the sheet return position flag is changed to “1”, and the process ends.

  In the present embodiment, the position of the sheet device is detected by the rotation sensor attached to the motor. However, it can also be detected by using a switch as in the first embodiment.

  As described above, according to the second embodiment, in addition to the operational effects of the first embodiment, the reclining motor is driven by the high-speed rotation brush by the driving means during the walk-in operation for tilting the seat back forward. By rotating the seat 13 at a high speed and tilting the seat back forward, there is no need to tilt the seat back, and the seat cushion can be moved forward in the walk-in operation at a high speed. It can be in a ready state.

  The above-described embodiment is an example of the present invention. For this reason, the present invention is not limited to the above-described embodiment, and various modifications can be made depending on the design and the like as long as the technical idea according to the present invention is not deviated from this embodiment. Of course, it is possible to change.

It is a block diagram which shows the structure of the sheet | seat control apparatus which shows 1st Embodiment of this invention. It is a time chart of the sheet control device showing the first embodiment of the present invention. It is a block diagram which shows the structure of the sheet | seat control apparatus which shows 2nd Embodiment of this invention. It is a flowchart of the sheet | seat control apparatus which shows 2nd Embodiment of this invention.

Explanation of symbols

1 Slide motor 2A Motor drive circuit for low speed 2B Motor drive circuit for high speed 2C Motor drive circuit for power supply 3 CPU
DESCRIPTION OF SYMBOLS 4 Seat forward switch 5 Seat reverse switch 6 Seat slide adjustment switch input circuit 7 Seat back forward tilt detection switch 8 Seat cushion forward detection switch 9 Seat back return position detection switch 10 Seat cushion rear return position detection switch 11 Walk-in switch input circuit 12 Rotation sensor 13 Reclining motor 14A Low speed motor drive circuit 14B High speed motor drive circuit 14C Power supply motor drive circuit 15 Seat back forward tilt switch 16 Seat back rear tilt switch 17 Reclining adjustment switch input circuit 18 Driver's seat side walk-in operation switch 19 Driver side return switch 20 Walk-in operation pedal switch 21 Passenger side return switch 22 Walk-in switch input circuit 23 Rotation sensor

Claims (5)

A slide motor for driving the seat cushion in the front-rear direction;
Driving means for driving the slide motor in the front-rear direction;
An operation switch that is operated when the slide motor is driven in the front-rear direction in order to move the seat cushion in the front-rear direction;
In a seat control device comprising control means for driving and controlling the slide motor to advance or retract the seat cushion by operating the operation switch,
The slide motor has a low-speed rotation brush, a high-speed rotation brush, and a power supply brush,
The control means drives the high-speed rotating brush with the driving means to rotate the slide motor at a high speed during a walk-in operation for advancing the seat cushion to advance the seat cushion. Control device. The seat control device according to claim 1,
The control means drives the high-speed rotating brush with the driving means to rotate the slide motor at a high speed when the seat cushion is restored from the walk-in operation, thereby retreating the seat cushion. Sheet control device. In the seat control device according to claim 1 or 2,
A reclining motor having a low-speed rotating brush, a high-speed rotating brush, and a power supply brush for driving the seat back in a forward tilt direction or a backward tilt direction;
Driving means for the reclining motor for driving the reclining motor in a forward or backward tilt direction;
A reclining operation switch for operating the reclining motor in the front-rear direction in order to move the seat back in the forward or backward tilt direction;
The control means drives the high-speed rotation brush by the reclining motor driving means during the walk-in operation for tilting the seat back forward to rotate the reclining motor at a high speed to tilt the seat back forward. A sheet control device characterized by the above. In a seat control method for moving a seat cushion forward or backward by driving a slide motor,
When the seat cushion is moved in the front-rear direction for position adjustment, the slide motor is driven using a low-speed rotation brush among the low-speed rotation brush and the high-speed rotation brush of the slide motor,
When moving in the forward direction of the seat cushion in the walk-in operation of the seat cushion, the slide motor is driven using a high-speed rotation brush among the low-speed rotation brush and the high-speed rotation brush of the slide motor. A characteristic sheet control method. The sheet control method according to claim 4,
When moving the seat back in the front-rear direction for reclining adjustment, the driving means drives the brush for low-speed rotation of the reclining motor,
A seat control method comprising: driving a high-speed rotating brush of a reclining motor by a driving means when moving the seat back in a forward tilt direction in the walk-in operation of the seat back.

Images