JPH0438231A - Power rotary seat control method and device - Google Patents

Abstract

PURPOSE:To prevent any contact between a seat and a center pillar or a console box, etc., and a motor's overcurrent attributable to that, by performing an automatic rotation of the seat at a driving position and an interval between boarding and alighting positions, only at a specified neutral position preset. CONSTITUTION:A power rotary seat controller 10 consists of a operating switch means 12, a position detecting means 14 and a central processing unit 16 which is provided with a microcomputer 56 and, in turn, this microcomputer 56 controls three motors M1 - M3 via a relay drivers 58 and size relays L1 - L6. In this case, for example, when a seat 20 is reached to a driving seat or boarding and alighting positions by drive of the motor M3, this motor is stopped at once. Then, the seat 20 is rotated at the driving position and at an interval between boarding and alighting positions only in the neutral positions of a seat 20 and a seat back 22. In brief, the seat 20 is rotated without making it contact with a body's center pillar and people at the rear seat, etc.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a power rotating seat control method and a power rotating seat control method for rotating a seat between a driving position and an entry/exit position by controlling the drive of a motor. Regarding equipment.

[Conventional technology]

For example, in vehicles, etc., a seat rotation device operated by drive control of a motor is equipped as a seating posture control device, and the configuration called a power rotation seat is such that the direction of the entire seat can be changed by the operation of the seat rotation device. Are known.

The motor of this powerful rotary seat is driven and controlled by a controller equipped with a controller, a microcomputer, and the like.

Power rotating seats are generally widely adopted as dry)<- seats, and can be rotated between a normal driving position and an entry/exit position facing the door at a predetermined angle by a predetermined switch/switch operation. It is configured to be movable. With this configuration, the driver (seated person) can quickly get on and off the vehicle without being obstructed by on-vehicle equipment such as a steering wheel, thereby improving the ease of getting on and off the vehicle.

In addition, it is well known that such a power rotating seat has a configuration in which other seating posture control devices such as a seat slide device and a reclining device are also provided.

In such a configuration, the driver can adjust the seat position, angle, etc. according to the driver's body shape, preference, degree of fatigue, when driving, when getting in and out of the car, etc., and can arbitrarily set a good seating posture. Ru.

[Problem to be solved by the invention]

By the way, in the well-known 1< saw rotation seat as described above, the seat is rotated while maintaining the seating posture set according to the driver's body shape, preference, etc. In other words, depending on the front and back position of the seat, the reclining angle of the seat back, etc., the edges of the seat cushion and seat back may come into contact with onboard equipment such as the steering wheel or console box, or the center pillar of the body of the seat. There is a risk that the rotation of the machine may be forcibly blocked. Forcible seat rotation prevention locks up the motor and creates a JI5 current in the motor as an overload condition, overheating and damaging the motor and damaging the seat cushion, seat bank, and
Damage other parts.

Therefore, for example, a configuration is known in which the moving speed of a sheet, etc. is monitored, an overload state of the motor is detected from a change in the moving speed, and when an overload state is detected, the motor is immediately stopped (Unexamined Japanese Patent Publication No. (Sho 61-067663). , 2, the motor is immediately stopped upon detection of an overload state of the motor, thereby protecting the motor from overcurrent.

However, with such a configuration, it is not possible to prevent motor overload in advance, so contact with on-board equipment, etc. is unavoidable, and there is a risk of adversely affecting seats, on-board equipment, etc. .

In addition, in cases where there is a person sitting in the rear seat, the seat is near the rear most and the seat is at the lowest position.

If the saw is carelessly rotated from the rearwardly tilted position, the edge of the seat back may unexpectedly come into contact with the rear seat occupant, potentially injuring the rear seat occupant.

Furthermore, when getting on and off by rotating the seat,
The door must be opened wide to prevent contact with the driver's feet. However, in view of recent traffic and parking conditions, it is difficult to always secure enough space to open the door wide, and due to the approach of pedestrians, bicycles, etc., it is difficult to close the door even when the seat is rotating. There are times when you have to. Therefore, if the seat 1- is carelessly rotated when the door does not open within 1 minute, the driver's foot will come into contact with the door, forcing the door to open, damaging the door, etc. There is a risk of injury etc.

Also, when closing the door while the seat is rotating, does the driver's foot make contact with the door? I can't kick it.

The object of the present invention is to provide a power rotary seat control method and a power rotary seat control device that improve safety by preventing the seat from coming into contact with on-vehicle equipment or the like.

[Means to solve the problem]

In order to achieve this object, according to the power rotation seat control method of the present invention, the seat can be placed in the front and rear positions where the seat cushion and the seat back can be rotated without contacting onboard equipment or the occupants of other seats. The reclining angle of the back is preset as the neutral position of the seat and seat back. The structure is such that the seat and seat back return to the neutral position and then automatically rotate in the corresponding direction by motor drive control based on a predetermined switch operation when getting in or out of the vehicle. has been done.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

As shown in FIGS. 1 and 2, the power rotation seatback ff1lo according to the present invention includes an operation switch means 12, a position detection means 14, and a central processing unit 16. In addition, the power rotating seat control device 10
further includes, for example, a slide motor M1, a reclining motor M2, and a rotation motor M3.

Then, the power rotating seat control device 10 includes a motor M1
By driving M3, the front and rear positions of the rotating seat (seat) 20, the inclination angle (reclining angle) of the seat back 22, the direction of the seat, etc. can be controlled. Usually, DC geared motors can be used as the motors M1 to M3. Further, the rotary seat 1-20 is generally installed as a driver seat, as shown in FIG. 3, for example.

For example, as shown in FIGS. 2 and 4, the motor M1 is installed as a drive source for the seat slide device 26, and the seat slide device is disposed between the seat 20 and the vehicle floor 28, and the motor M1 is installed as a drive source for the seat slide device 26. The seat is configured to be able to move (slide) in the front and rear directions by driving the seat.

The motor is formed with a rotation sensor (not shown), such as a reed switch type sensor, for example.

For example, as shown in FIG. 1, the rotation sensor of the motor M1 is connected to the central processing unit 16 via an overload detection circuit 30, which will be described later. It is configured so that it can be counted by the processing unit.

The number of rotations of the motor Ml, that is, the position of the seat 20 in the longitudinal direction, is detected based on the number of pulses generated from the rotation sensor.

Further, the motor M2 is installed as a drive source for the reclining device 32, and the reclining device can swing the seat back 22 in the front and back direction by driving the motor M2, and adjust the inclination angle (reclining angle) of the seat bank. It is composed of

Here, as can be seen from FIG. 1, the motor M2 is
For example, a light emitting diode 34 and a phototransistor 36
The rotation sensor 38 is connected to the central processing unit 16 via, for example, an overload detection circuit 3o. Then, the number of rotations of the motor M2, that is, the reclining angle of the seat back 22, is detected based on the number of pulses generated from the phototransistor 36 as the motor M2 rotates. It should be noted that the rotation sensor 38 only needs to detect the reclining angle of the seat back 22, and the structure including the light-emitting tie-out 34 and the phototransistor 36 is well known, and the structure itself is not the gist of the present invention, so it will not be described in detail. does not explain.

Further, the motor M3 is installed as a drive source for the seat rotation device 40. The seat rotation device 4o is, for example,
As shown in FIGS. 2 and 4, the seat rotating device 40 includes a rotating plate 42 operably connected to a motor M3, and the rotating plate is attached to the bottom of the seat cushion 44. , the no h20 is configured to be rotatable within a predetermined range in the horizontal direction by the rotation of the rotary plate 42 as the motor M3 is driven.

As shown in FIG. 3, the seat rotation device 40 is configured, for example, to a driving position with the seat facing forward and a corresponding door 4.
The seat is rotated between the boarding position and the boarding position facing toward the 6th side, and the seated person can board and exit the vehicle at the boarding and exiting position. The rotation angle of the seat 20 is, for example, approximately 300 degrees.

Here, the motor M3 is similar to the old motor, for example,
It has a rotation sensor connected to the central processing unit 16 via the overload detection circuit 30, and is configured to be able to detect the rotation angle of the seat 20 based on the number of pulses output to the central processing unit 16. ing.

In addition, the seat slide device 26 and the reclining device 3
2 and the seat rotation device 40 each have a known configuration, and since the configuration is not the gist of the present invention, it will not be described in detail.

By the way, as shown in FIGS. 1 and 2, the power rotating seat control device 10 of the embodiment is configured to further include a motor mounted as a drive source for the side support device 48, for example.

The site support device 48 includes, for example, the seat back 2
A pair of side supports 49 are provided on both sides of the seat, and are driven by a motor M4 between a support position that prevents the seated person from losing their posture and an open position (boarding/exiting position) that is separated from the seated person. (See Fig. 5).

The side supports 49 are normally located in the oven position, and are swung to the support position by detecting lateral acceleration, for example, and held for a predetermined time to support the upper body of the seated person.

Further, the seated person gets on and off the vehicle at the oven position of the side support 49. side support 49
As shown in Figure 5, the support positions are divided into soft support positions, which are usually used on city roads, and hard support positions, which are usually used on mountain roads. are configured so that they can be selected as appropriate.

Note that the side support device 48 has a known configuration,
The configuration itself is not the gist of the present invention, and since the rotary saw 120 may or may not have a side support device, the configuration and operation of the side support device will not be described in detail. In the embodiment, the rotary seat 20 to which the side support device 48 is attached
Although illustrated as a power rotating seat control device 10 that can control the power rotating seat control device 10, the present invention is not limited to this, and a configuration may be adopted in which the side support device is omitted.

Motors M1 to M3 are operated by, for example, operation switch means 12.
As shown in FIG. 1, the operation switch means are roughly divided into a manual switch 12a and an auto switch 12b. The manual switch 12a includes, for example, a slide switch 50, a reclining switch 52, and a rotation switch 54.

As shown in FIG. 1, the switches 50 to 54 of the manual switch 12a may be configured, for example, depending on the operating direction.
An automatic return type 7-saw switch having a neutral positive/in and two-position contact can be used to switch the rotation direction of the motors M1 to M3. Each switch of the manual switch 12a is connected to the central processing unit 16, as shown in FIGS. 1 and 2.

The central processing unit 16 is formed with a microcomputer (microcomputer) 56, and the microcomputer is configured to process input according to a stored program and to generate appropriate control signals. As can be seen from FIGS. 1 and 2, the control signal is output to the relay driver 58, and the relay control circuit controls, for example, relays R1□1 to RL.
Activate the appropriate relay among 6. And relay R
1, ]~RL6, the energized relays switch the corresponding relay contacts 6RL1a~R1, 6a, respectively, thereby controlling the driving of the motors M1~ and 3, respectively.

For example, when the sliding switch 50 of the manual switch is operated at an arbitrary seat position, a corresponding signal is output to the central processing unit 16. Then, the control signal processed by the central processing unit 16 is output to the relay driver 58, and the signal from the relay driver causes, for example, relay RL1. RL2
energized, the corresponding relay contact RL1a,
RL2a is switched.

Then, by switching the relay contacts RL1a and RL2a, the motor 20 is driven in the corresponding direction, the seat 20 is moved in the longitudinal direction, and the longitudinal position of the seat is adjusted.

For example, when the motor rotates in the forward direction, the seat 20
Configured to move forward.

Here, as shown in FIG. 1, relay 1? L1, RL
2, for example, slide limit switch 60.62
are connected to each other. As the slide limit switches 60 and 62, for example, automatic return type pushbutton switches can be used.
It is provided to be able to detect the movement limit position of 0. When the seat 20 reaches the front limit position, the slide limit switch 60 is turned off, and when the seat 20 reaches the rear limit position, the slide limit switch 62 is turned off and relays RL1. It is configured to de-energize the corresponding relay of RL2 and immediately stop the old motor.

In such a configuration, the slide limit switch 60.
62 restricts excessive movement of the seat 20, so the range of movement of the seat 20 in the front-rear direction can be limited.

The sliding switch 50 of the operation switch means is normally operated, for example, when making fine adjustments to the front and rear positions of the drive body 3, and when setting the drive position of a driver other than the owner driver.

Furthermore, when the reclining switch 52 and the rotation switch 54 are operated, corresponding signals are output to the central processing unit 16 in the same manner as described above, and a processed control signal is output from the central processing unit to the relay driver 5δ. Ru. Then, the motor M2. l'! 3 is driven in the corresponding direction, the gear pack 22 is swung back and forth, and the seat 20 is rotated horizontally.

In addition, the relay shown in Fig. 1 [,? , RL8 indicates a relay for the motor M4 of the side support device 48, and the relay RL7 . The motor M4 can be driven and controlled by energizing RL8 and switching the corresponding relay contacts RL7a and RL8a.

The swing range of the seatback 22 is defined, for example, by the number of pulses generated by the rotation detection circuit 38, and when the measured value corresponding to the reclining angle reaches a set value at a preset limit position, the motor M2 is activated. It will be stopped immediately. The reclining switch 52 is normally operated when finely adjusting the reclining angle of the seat back 22. Note that the regulation of the swing range of the seatback 22 is not limited to the number of pulses of the rotation detection circuit 38, and may be defined by, for example, a limit switch or the like.

Here, for example, the rotation sensors of motors old to M3 are connected to the central processing unit 16 via the overload detection circuit 30. The overload detection circuit 30 determines whether the motor is old or old or
The rotational speed of each motor is detected and monitored, and the rotational speed of each motor is compared with a preset value. and,
When the rotation speed of motor old ~ M3 falls below the set value,
It is configured to determine that a motor is overloaded, output a motor stop signal to the central processing unit 16, and immediately stop the corresponding motor.

In such a configuration, the motor M1 is
Even if ~M3 becomes overloaded, the corresponding motor is immediately stopped, so overheating, damage, etc. of the motor can be reliably prevented, and the safety of the motor is ensured.

Incidentally, the range of rotation of the seat 20 by the seat rotation device 40 is limited, for example, by the rotation position detection switch 14a of the position detection means 14. As shown in FIG. 1, the rotational position detection switch 14a includes, for example, a driving position switch [4, a boarding/exiting position switch 66]
each switch is formed with a central processing unit 1
6, respectively. The operating position switch 64 and the getting-on/off position switch 66 of the rotational position detection switch are arranged so as to be turned on when the 7-toe 20 reaches the operating position and the getting-on/off position, and each switch is turned on. The motor 13 is configured to stop immediately. Position switch 64 for driving, position switch for getting on and off
As the notch 66, for example, an automatic return type push-pull switch can be used.

In such a configuration, the seat 20 reaches the driving position or the getting-on/off position by driving the motor M3, and any switch 64.6 of the rotary position detection switch 14a is activated.
6 is turned on, a corresponding detection signal is output to the central processing unit 16, and the motor M3 is immediately stopped.

Therefore, excessive rotation of the seat 20 is prevented, the driving position and the getting on/off position of the seat can be reliably defined, and overheating and damage to the motor can be reliably prevented, ensuring the safety of the motor. .

Here, in this invention, the seat is configured to rotate between the driving position and the getting-on/off position only when the seat 20 and the seat back 22 are in the non-neutral position. The neutral position of the seat 20 is, for example, when the seat is rotated, the center pillar 68 of the body, the console box 70 and the rear seat 72
The seat position is defined as a position where the seat does not come into contact with the occupants, for example, a position approximately 40 degrees forward from the rear most.

In addition, the neutral body position of the seat back 22 is as follows:
When the seat 20 rotates, the seat back is defined at a position where the seat back does not come into contact with a person sitting on the rear seat 72 or the assistant seat 74, for example, at a position approximately 20 degrees rearward from the vertical.

The neutral positions of the seat 20 and the seat back 22 are detected, for example, by the neutral switch 14b of the position detection means 14. The neutral switch 14b includes a sliding switch 76 for detecting the neutral position of the seat 20 and a reclining switch 78 for detecting the neutral position of the seat back 22. As shown in FIG. 1, automatic return type pushbutton switches can be used as the neutral switch slide switch 76 and reclining switch 78, and each switch is connected to the central processing unit 16. The slide switch 76, the reclining switch 78, the seat 20, and the seat back 22 are arranged so as to turn on at the same time they reach the canutral position, and detect signals generated when each switch is turned on. The configuration is such that motor M2 immediately stops due to this.

In such a configuration, the seat 20 is rotated without contacting the center pillar 68 of the body or the seat occupant, so that the seat is forcibly prevented from rotating due to contact, that is, the motor M3 is restrained. can be prevented, and
Damage to the seat, etc., and injury to rear seat occupants can be prevented by placing the seat upright. Therefore, the safety of the motor M3, the seat 20, the seat back 22, the seated person, etc. is sufficiently ensured.

Further, as shown in FIGS. 1 and 2, in the power rotating seat control device IO of the present invention, the ignition switch 80 of the automobile is connected to the central processing unit 16. Then, when the ignition switch 80 is turned off, the stopped state of the automobile engine is detected, and the power rotating seat control device 10 is configured so that the seat 20 is rotated by the drive of the motor M3 only when the ignition switch 80 is turned off. It is configured. In such a configuration, the seat 20 does not rotate when the ignition switch 80 is on, that is, when the vehicle is running or when the vehicle is in standby mode such as waiting at a traffic light. Therefore, malfunction of the seat 20 can be prevented and safety can be ensured.

Furthermore, as shown in FIG. 1, the present invention includes door detection means 82 and 84 for detecting the opening and opening angle of the door 46 corresponding to the seat 20 in, for example, two stages. The rotation of the actuator can be controlled accordingly.

The door detection means 82, for example, as shown in FIG.
It is provided to detect opening of the door 46 at an opening angle of 01 or more. The opening angle θ1 of the door 46 is set, for example, to an extent that allows confirmation of the rear when the vehicle is traveling in reverse. As the door detection means 82, for example, a door switch that turns on the room lamp 86 when the door 46 is opened can be used.

Further, the door detection means 84 is provided to be able to detect the opening of the door 46 at an opening angle of 02 or more, for example, and the opening angle θ
2 is set to the minimum angle at which the driver's feet and the like do not come into contact even when the seat 20 rotates. Door detection means 8
4, for example, an automatic return type pushbutton switch can be used, and is provided separately from the door detection means (door switch) 82.

As shown in FIG. 1, the door detection means 82, 84 are each connected to the central processing unit 16.

In the present invention, the seat 20 is rotated only when the door 46 is opened at an opening angle of 02 or more.

That is, when the opening angle of the door 46 is less than or equal to θ2, the seat 20 does not rotate, so the driver's feet do not come into contact with the door 46 or the like, and the safety of the seated person is ensured.

Note that even when the opening angle of the door 46 is less than 0.02 mm, the seat 20 and the seat back 22 are set to their respective neutral positions.

In other words, the seat 20 is set rearward from the normal driving position, and the reclining angle of the seat back 22 is set to be more vertical than when the passenger is normally seated. Therefore, even from the driving position of the seat 20, the driver can
It is possible to get on and off the vehicle without being obstructed by the steering wheel 88, etc. Therefore, even in a parking space where the door 46 cannot be opened at an opening angle of 02 or more, as long as the door can be opened at an angle that allows the driver's body to pass through, boarding and alighting can be carried out in the conventional manner.

By the way, the auto switch 12 of the operation switch means 12
b includes, for example, a boarding switch 90 and a boarding switch 92 that are operated when getting on and off the vehicle, and a seat 20 that is arbitrarily set.
It further includes a set switch 94 for storing the position and reclining angle of the seat back 22 in a memory function (not shown) of the central processing unit 16. The memory function of the central processing unit 16 is, for example,
Memory 1 for specific occupants (owner/driver)
and memory 2 for any seated person (any driver)
and are formed individually. Then, by using the set switch 94, the positions of the seat 20 and seat back 22 set to the desired positions are stored in the memory 1,
It is configured such that it can be stored in either memory 2.

As the riding switch 90, for example, an automatic return type saw-and-type switch having a neutral position and a two-position contact can be used. And boarding switch 9
0 rotates the seat 20 to the driving position, reads out the contents of either memory 1 or memory 2, and performs memory regeneration in which the seat and seat back 22 are automatically moved to the memory position.

Further, as the exit switch 92, for example, an automatic return type push-pull switch can be used, and the seat 2o and trunk bag 22 are automatically moved to the entry/exit position when the exit switch is turned on.

In the present invention, a seating detection means 96 is provided for detecting the presence or absence of a person sitting on the seat 20. For example, a pressure-sensitive seating sensor can be used as the seating detection means g6, and the seating sensor is disposed within the seat cushion 44 of the saw 20, as shown in FIGS. 2 and 4.
Connected to the central processing unit 16 (see Figure 1)
. In such a configuration, for example, when the seating sensor (seating detection means) 96 detects pressure, a signal is output to the central processing unit 16, and the presence of a person sitting on the seat 20 is detected. Then, depending on whether or not there is a person sitting on the seat 20, the driving position and the getting on/off position of the seventh seat are respectively set.

Further, as shown in FIG. 1, for example, the speed adjusting means 9
8 is preferably provided in the motor M3 so that the rotational speed of the seat 20 between the driving position and the getting on/off position can be adjusted. According to such a configuration, the rotation speed of the seat 20 that matches human sensibilities can be appropriately selected, so that the comfort of the driver is not impaired.

Here, the operation switch means 12, the position detection means 1
4 is the operable position of the driver, even if the second
As shown in the figure, it is arranged on the side of the seat cushion 44, etc. However, it is sufficient that the operation switch means 12 is located at a position where the driver can easily operate it, and is not limited to the side of the seat cushion 44. It is also possible to adopt a configuration in which a body detection means 14 is provided.

In addition, reference numeral 10◎ in Fig. 1 indicates the side support 49.
The side support device 48 swings to the selected support position when the lateral acceleration detecting means 102 connected to the central processing unit 16 detects a lateral acceleration equal to or higher than a reference value. be done.

Further, reference numerals 104 and 106 indicate the side support 49.
The position detection means for detecting the soft support position and swing limit position (open position, hard support position), respectively, is shown.

For example, a flowchart shown in FIGS. 6 to 10 shows a method of controlling a power rotating seat using the power rotating seat control device 10 configured as described above when a driver gets on and off the vehicle, centering on the rotation of the seat 20 in response to the opening of the door 46. This will be explained below.

For example, as shown in FIG.
When the power is turned on (152), the contents of the central processing unit are first initialized (154), and the seat 20, seat back 22, side supports 49, etc. are set to their initial states. Then, it is determined whether the manual switch 12a of the operation switch means 12 has been operated (15B).

C. Assuming that any of the switches 50 to 54 of the manual switches 12a is operated in an arbitrary direction, the corresponding manual switch is turned on, and (
15B), the determination is YES.

Then, first, the drive of motors M3 to M3 is stopped by operating the boarding switch 90 and the exiting switch 92, and the seat 20 is moved to the memory position, neutral position, etc.
, stop the automatic movement of the seat back 22 (15g
), then along the manual operation subroutine,
Processed accordingly (160). That is, in such a configuration, priority is given to driving the motors M1 to M3 by operating the manual switch 12a. Therefore, the operability of the seat slide device 26, the reclining device 32, the seat rotating device 40, etc., and the safety of the seated person are ensured.

In the manual operation subroutine, by operating the manual switch 12a, the corresponding motor M3 is driven in any direction, and the longitudinal position and direction of the seat 20, the reclining angle of the seat back 22, etc. can be arbitrarily set. It's enough.

In other words, since a conventional control method for a motor control device such as a known power seat can be used, a detailed explanation will be omitted.

Then, under the manual operation subroutine (160), after arbitrarily adjusting the positions of the seat 20 and seat back 22 according to body shape, preference, etc., the boarding switch 9
If you select memory 1 or memory 2 with 0 and operate the set switch 94, the seat and seat back positions will be stored in memory 1 or memory 2 (16
2).

Further, for example, when the manual switch 12a is not operated, the manual switch is off, so (
156), it is determined No, and then it is determined whether the ignition switch 70 is turned on (164).

Here, for example, assuming that the driver seated in the seat 20 turns off the ignition switch 80 after the car is running but before the driver gets out of the car,
First, it is determined NO in (164), and then it is determined whether or not the seating sensor 96 is on, that is, whether or not there is a person sitting on the seat 20 (166).

Since the seating switch 96 is turned on before the driver gets off the vehicle, YES is determined in (16B), and the process is appropriately processed according to the alighting operation subroutine (
168).

As shown in FIG. 7, in the alighting operation subroutine, first, the side support 49 is moved to the open position by driving the motor M4 (202). Then, it is determined whether or not the exit switch 92 has been operated (204). At this time, the vehicle waits until the hour wheel switch 92 is operated and turned on, and the determination at (204) is No, and the exit switch 90 is turned on. Then, the exit switch 92 is turned on, and when it is determined YES in (204), the seat 20 is first moved to the neutral position by the drive of the motor (206). Then, it is determined at any time whether the sheet 20 has reached the neutral position (20g).
, until the sheet reaches the neutral position)
10, and the motor Ml is continuously driven.

When the seat 20 reaches the neutral position by the drive of the motor and YES is determined in (208), it is then determined whether the opening angle of the front door on the corresponding driver seat side is θ>θ1. be judged (
210). At this time, the opening angle of the door 46 is the set value θ1
The determination is NO until the door is opened more than the set value θ1, and the door waits until the door is opened more than the set value θ1. In other words, the seat 20 does not rotate when the door 46 is closed or opened to check the rear when the driver has no intention of exiting the vehicle. If the door 46 is opened to a greater extent than the set value θ1 and YES is determined in (210), then it is determined whether the opening angle of the door is θ1≦θ2 (212).

Here, if there is enough parking space for the car and the opening angle of the driver's door 46 is 02 or more, (
212), it is determined NO, and then it is determined whether the opening angle of the door is θ≧02 (214). Then, after determining YES in (214), it is determined whether the door has swung in the closing direction and the opening angle of the door has been returned to θ2 by θ (216), and the opening status of the door is determined. will be reconfirmed.

For example, if the door opening angle θ is greater than the set value θ2,
If it is determined NO in (216), first, the seat back 22 is swung to the neutral position by the drive of the motor M2 (21g). At this time, it is determined at any time whether the seat back 22 has reached the neutral position (220), and the determination is No and the driving of the motor M2 is continued until the seat back 22 reaches the neutral position. Then, when the driver 22 reaches the neutral position and it is determined YES in (220), the seat 20 is rotated from the driving position to the getting-on/off position by the drive of the motor M3 (222), A seated person exits the vehicle at the entry/exit position of the seat.

Next, it is determined whether the seating sensor 96 is off (2
24). For example, if it is assumed that the seated person exits the vehicle at the boarding/exiting position of the seat 20, then at (224) YE
Then, as shown in FIG.
It is determined whether or not the is stopped (226). If it is assumed that the seat 20 remains in the boarding/exiting position after the seated person exits the vehicle, YES is determined in (226), and it is determined whether or not the seat is in the driving position (22).
g).

Here, for example, if the seated person leaves the seat while the seat 20 is rotating, the seating sensor 96 turns off, and YES is determined at (224) in FIG. 7, (224) in FIG. 226), it is determined NO, and motor M3
and stop the rotation of the seat immediately (230).
.

Then, the seat 20 is in the getting on/off position etc. (228)
If the determination is NO, the seat 20 is rotated to the driving position by driving the motor M3 (234) after a delay of, for example, one second (232). In such a configuration, since the stopped state is maintained for one second after the driver leaves the seat, it is possible to prevent the seat 20 from coming into contact with the driver's feet, etc., and the safety of the driver after getting out of the vehicle is ensured. Thereafter, it is determined whether or not the door is closed (236). If the door is detected to be closed and the determination is YES, the process returns to the main routine shown in FIG.

According to such a configuration, the driver can easily get out of the vehicle by rotating the seat 20 in the neutral position control. Even after leaving the seat 20, contact with the door 46, seat, etc. is prevented within 1 minute.
The safety of the seated person is ensured.

By the way, if the door 46 is once opened wide and the opening angle is set to θ≧02, and then the opening angle of the door is reduced to less than 02 due to the approach of another vehicle, etc., then the following will occur as shown in FIG. 7 (214).
(216), it is determined as YES, and
In any position of the seat 20, the motor M3 is driven to immediately return the seat to the driving position (23
g). Then, it is determined at any time whether the seat 20 has reached the driving position (240), and if it is determined to be YES,
The seat back 22 is swung to the neutral position by driving the motor M2 (242). After that, (2
In step 24), the presence or absence of a dry door is detected, and if the seated person does not get off the vehicle and it is determined as No in step 224, the opening angle of the door 46 is reconfirmed in step 216. .

Then, the opening angle of the door 46 is smaller than the set value θ2,
If the driver exits the vehicle while the determination is YES in (212) or (21G), the determination is YES in (224). Then, next, (
At 226) it is determined whether the seat 20 is stopped, and at (228) it is determined whether the seat is in the driving position. Since the opening angle of the door 46 is smaller than the set value θ2 and the seat 20 is stopped at the driving position, YES is determined in both (226) and (22g), the door is closed, and in (23B), If YES, the process returns to the main routine shown in FIG.

In other words, in a parking space or the like where the door 46 cannot be opened more than 02 degrees, the seat 20 does not rotate even if the door is opened. However, even when the opening angle of the door 46 is less than 0.02, the seat 20 and seat back 22 are set to the neutral position, so that the driver can exit the vehicle without being hindered by on-vehicle equipment such as the steering wheel 88.

Therefore, the door 46 is not forcibly opened due to the rotation of the seat 20, and injuries to the legs of the seated person and scratches from the door can be prevented within 1 minute.

Furthermore, when the driver is in the vehicle, there is no one sitting on the seat 20 and the seating sensor 96 is off.
In step (166) of FIG. 6, the determination is No, and the process is appropriately processed according to the riding operation subroutine of FIG.

In the boarding operation subroutine of FIG. 9, first, it is determined whether the opening angle θ of the door 46 is larger than the set value θ1 (252), and the process waits until the door is opened and a YES determination is made. Then, for example, if the door 46 is opened and YES is determined in (252), then it is determined whether the seat 20 is in the alighting position (254), and the seat is already in the alighting position. 7, the determination is YES, and it is determined whether the opening angle of the door is 01≦θ and 02 (256).

At this time, the seat 20 is not in the exit position 7 and (25
If it is determined No in step 4), for example, the side support 49 is swung to the open position by driving the motor M4 (2511), and the motor 1
．． -2 in sequence to move the seat and seat back 22 to the neutral position, and set the seat exit position 7 (260), (262)
.

For example, when the door 46 is closed again after the exit position of the seat 20 is set, NO is determined in (256), and it is also determined whether the opening angle of the door is larger than the set angle θ2. At (264), the determination is NO and the opening of the door is awaited. For example, when the door 46 is opened to a greater extent than the set value θ2, (2
5G) and YES in (264), respectively.Next, it is determined whether the door opening angle is smaller than the set value θ2, and the door opening status is reconfirmed (2f+B) o For example, when the opening angle of the door 46 is larger than the set value θ2, (266)
If the answer is YES, the seat 20 is rotated to the getting-on/off position by driving the motor M3 (268).

Further, when the opening angle of the door 46 becomes smaller than the set value θ2, 7-h20 is immediately returned to the operating position (270
), the safety of the seated person is ensured.

Then, it is determined whether the seating sensor 96 is off (272). (26g) or (270), when the driver gets on the vehicle and the landing sensor 96 turns on, YES is determined in (272), and then the seat stops. It is determined whether or not it is (274). Assuming that the saw i-20 is stopped at either the driving position or the getting on/off position, YES is determined in (274), and it is determined whether the getting on board switch 90 has been operated in memory 1 (276).
It is sequentially determined whether the memory 2 has been manipulated (27B).

Here, for example, after the ON state of the seating sensor 96 is detected and YES is determined in (272), (27)
If it is determined No in step 4), the motor is immediately stopped and the sliding of the seat 20 is stopped (280);
After that, in (27G) and (278), the operating direction of the boarding switch 90 is determined.

In (276) and (278), the boarding switch 9
When the operation direction of 0 is determined, as shown in FIG.
First, it is determined whether the seat 20 is in the neutral position (282). At this time, if the seat 20 is already in the neutral position, (2
If YES is determined in g2) and the seat is not in the neutral position, NO.
It is determined that the seat is moved to the neutral position by driving the motor M1 (284).

When the seat 20 is set to neutral position control,
Next, it is determined whether or not the seat back is in the neutral position (286), and if it is not in the neutral position, it is determined to be IIO, and the motor M2
The seatback is moved to the neutral position (28g).

Then, in (28g), if the seat back 22 is moved to the neutral position, or if it is determined YES in (2g6>), then the seat 20 is rotated to the driving position by the drive of the motor M3. be done (290)
. When the seat 20 is rotated, it is determined at any time whether or not the seat has reached the driving position (292), and until the driving position is reached, the determination is No and the motor M3 continues to be driven. Ru.

When the seat 20 reaches the driving position and YES is determined in step (292), it is determined whether or not the ride switch 90 has been operated in the memory 1 (step 294).

At this time, when the boarding switch 90 is operated in memory 1 and YES is determined at (27B) in FIG. 9, YES is determined at (294) in FIG. 10, and the motor M2 is driven. As the seat back 22 is swung to the memory position of memory 1 (296),
By driving the motor Ml, the seat 20 is slid to the memory position controller of the memory 1 (298) O. Also, operate the boarding switch 90 to the memory 2, and select YES at NOl (27g) at (276) in FIG.
If each of these is determined, NO is determined at (294) in FIG. 10. Then, the seat back 22 is swung to the memory position 7 of the memory 2 by the drive of the motor M2 (300), and the seat 20 is slid to the memory position 7 of the memory 2 by the drive of the motor M2 (302). ). After the seat 20 is moved to the memory position, the process returns to the main routine shown in FIG.

As described above, according to the power rotating seat control method of the present invention, the seat 2 is rotated between the driving position and the getting on/off position only in a predetermined neutral position control set in advance.
0 automatic rotation is performed. That is, when the seat 20 is rotated, since both the seat and the seat back 22 are set to neutral position control, contact with the center pillar 68, console box 70, etc. is prevented.

Therefore, the old motor is restrained due to contact between the seat 20 and the center pillar 68, console box 70, etc.
In other words, the overload state of the motor can be suppressed, and overheating, damage, etc. of the motor M3 can be prevented.

Further, the opening angle of the door 46 is detected, and a predetermined opening angle θ is determined.
It is preferable that the seat 20 is automatically rotatable only when two or more openings are made. In such a configuration, the door 46 is
In parking spaces where two or more spaces cannot be opened, the seat 20 does not rotate even if the door is opened, and passengers can get in and out of the vehicle while remaining in the driving position. Therefore, the door 46 is not forced to open due to the rotation of the seat 20.
Injuries to the feet of those seated, scratches on the door, etc. can be prevented in just one minute.

Even when the opening angle of the door 46 is less than 0.02, the sow), 20, /-dopa, and ri 22 are set to the neutral position control, so the driver gets off the vehicle without being disturbed by onboard equipment such as the steering wheel 88. can. In other words, the driver can get in and out of the vehicle according to the open state of the door 46, so the driver can get in and out of the vehicle according to the parking space, etc., without being forced to take an unreasonable posture.

Furthermore, even if the door 46 is closed due to the approach of a following vehicle, pedestrian, bicycle, etc. while the seat 20 is rotating, the seat is immediately returned to the driving position, so the safety of the driver and the motor M3 is reduced to 1. - can be secured in minutes.

According to the power rotating seat control device 1O of the present invention, despite its simple configuration, the above power rotating seat control method can be appropriately performed, preventing the restraint of the motor in advance, and The safety of M3 is improved.

In the embodiment, it is embodied as the driver seat 2o, but it is not limited to this, and the unstand seat 7
4, this invention may be applied.

Although suitable for automobile seats, the power rotating seat control of the present invention can also be applied to other seats, such as seats for trains, airplanes, ships, etc., hairdressing seats, massage seats, etc. The device may also be applied.

The above-mentioned embodiments are for illustrating the present invention, and are not intended to limit the present invention in any way, and any modifications, modifications, etc. made within the technical scope of the present invention are also included in the present invention. Needless to say.

C Effects of the Invention As described above, according to the power rotating seat control method of the present invention, the seat can be automatically rotated between the driving position and the getting-on/off position only at a predetermined neutral position. movement is carried out. Therefore, when the seat is rotated, overcurrent of the motor due to contact with the center pillar, console box, etc. can be prevented, and the safety of the motor can be ensured.

Since the seat is rotated in the neutral position, the safety of the seat occupant is sufficiently ensured. and,
When the seat is used as a front seat, the safety of rear seat occupants is ensured.

Further, it is preferable that the opening angle of the door is detected and the seat is automatically made rotatable only when the door is opened at a predetermined opening angle or more. With such a configuration, in a parking space or the like where the door cannot be opened beyond a predetermined angle, the seat does not rotate even if the door is opened, and passengers can get in and out of the vehicle while remaining in the driving position.

Therefore, it is possible to obtain a posture for getting on and off the vehicle depending on the door opening situation, and it is possible to easily get on and off the vehicle depending on the parking space and the like.

According to the power rotation seat control device of the present invention, despite its simple configuration, the above-mentioned power rotation seat control method can be appropriately carried out, and the restraint of the motor can be prevented in advance to prevent the seated person from Motor safety is improved.

In addition, if a door detection means is provided to detect the opening of the door at a predetermined angle or more, and the seat can be rotated only when the door is opened at a predetermined angle or more, the safety of the seated person and the motor will be further ensured. .

[Brief explanation of drawings]

FIG. 1 is a detailed block diagram centered on the central processing unit of a power rotating seat control device according to the present invention, FIG. 2 is a schematic block diagram of the power rotating seat control device, and FIG. 3 is a power rotating seat control device according to the present invention. FIG. 4 is a schematic side view of the inside of the vehicle equipped with a power rotating seat; FIG. 5 is a schematic plan view of the seat equipped with a side support device; FIG. 6 is a schematic top view of the vehicle equipped with the seat; 10 to 10 are flowcharts of the power rotating seat control method of the present invention. 10: power rotating seat control device, 12: operation switch means, 12a: manual switch, 12b: t-to switch, 14: position detection means, 14a: rotational position detection switch, 14b = neutral switch, 16;
Central processing unit, 20: rotating seat (driver 7-
door), 22 near pack, 46; door, 56 two microcomputers (microcomputers). Figure Figure Figure Figure 10

Claims (4)

[Claims] (1) In a power rotation seat control method in which the seat is rotated between a driving position and an entry/exit position using motor drive control, the seat cushion and seat back may come into contact with onboard equipment or occupants of other seats. The forward and backward position of the seat and the reclining angle of the seatback, which allow the seat to rotate without any movement, are set in advance as the neutral position of the seat and seatback, and the motor is activated under a predetermined switch operation when getting in and out of the vehicle. A power rotation seat control method in which the seat and seatback are returned to the neutral position by drive control, and then the seat is automatically rotated in the corresponding direction. (2) The power rotating seat control method according to claim 1, wherein the opening angle of the corresponding door is detected, and the seat is automatically rotated only when the door is opened by a predetermined opening angle or more. (3) At least a series of motors for adjusting the longitudinal position of the seat, the reclining angle of the seatback, and the direction of the seat, an operation switch means operated when exiting or entering the vehicle, and a neutral position of the seat and seatback. and a central processing unit that processes information input from the operation switch means, position detection means, etc. according to a program, and controls the drive of the motor. The seat is automatically rotated in the corresponding direction after the seat and seat back return to the neutral position by motor drive control under a predetermined switch operation when getting on or off the vehicle. Power rotating seat control device. (4) The power source according to claim 3, further comprising door detection means for detecting the opening of a door, and enabling automatic seat rotation only when the corresponding door is opened at a predetermined opening angle or more. Rotating seat control device.