JPH04189634A - Seat device for automobile - Google Patents

Abstract

PURPOSE:To improve the getting on/off efficiency of an automobile equipped with a gull wing door, by controlling a drive motor by means of a controlling means so that when the gull wing door having been opened is detected, a seat opposite to the gull wing door operated for opening may be moved to an ascent position. CONSTITUTION:When a seat device main body 16 is descending under a condition in which an auto mode is set by connecting the terminals (a1) and (c1) of a mode changeover switch 40, the (a) contact point switch 42a of a descent position detecting switch 42 and the (b) contact point switch 43b of an ascent position detecting switch 43 become closed, and the relay coil 47c of an ascent relay 47 is excited, and both relay switches 47a, 47b become closed. Accordingly, when a door 2 is operated for opening for the purpose of getting on/off and opened at more than a predetermined angle, the 1st limit switch 44 becomes closed, and battery voltage is impressed at the normal rotation terminal 18a of a motor 18 through the switch 44 and the 1st relay switch 47a, and the body 16 is driven ascendingly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a seat device for a motor vehicle equipped with a gull wing door.

(Prior Art) Gull wing doors, which are rotatably supported by hinges provided at the center of the roof, have been widely known as automobile doors.

Normally, in cars equipped with the above-mentioned gull wing doors, the length of the door in the vertical direction is set as small as possible and the side sills are set accordingly in order to prevent the door from interfering with adjacent vehicles or walls when the door is opened or closed. It is set high and the rotation trajectory of the door is configured to be as small as possible.

On the other hand, in a car equipped with a normal side door that is rotatably supported on a hinge provided at the front end of the door opening,
For example, as described in Japanese Patent Application Laid-Open No. 62-94418, a door switch is provided to detect the opening/closing operation of the door, and when the door is opened, a part of the roof provided close to the door is rotated upward. Some models are equipped with a boarding/exiting control device that increases the ease of boarding and exiting by driving the vehicle or lowering the seat side support on the door side.

[Problem to be solved by the invention]

In cars equipped with the above-mentioned gull wing doors, the height of the side sills is much higher than that of cars equipped with normal side doors, and the seat cushion is located on the side of the side sills. However, there is a problem that it is very difficult to get on and off the vehicle. Additionally, since the door opens by pivoting upward around a hinge on the roof, it is necessary to grasp the armrest that has been rotated to a higher position than the roof to close the door, making it very difficult to operate. The problem is that it's bad.

On the other hand, the boarding/exiting control device described in the above publication can improve the ease of getting in and out of a car equipped with a normal side door, but even if it is applied to a car equipped with a gull wing door, the same reasons as above apply. Therefore, the ease of getting on and off cannot be improved in any way. It is also possible to raise and lower the seat using a lifting mechanism, but if the seat is driven up and down when the door is not fully open, the problem arises that the occupant's head will come into contact with the top of the door. .

An object of the present invention is to provide a seat device for an automobile that can improve the ease of getting in and out of an automobile equipped with a gull wing door.

[Means for Solving the Problems] The vehicle seat device according to the first claim is a vehicle seat device equipped with a gull wing door, in which the vehicle seat can be seated in a lowered position and a lowered position in which the vehicle seat can be seated in an appropriate posture. an elevating support mechanism that supports the elevating support mechanism such that the elevating support mechanism can be raised and lowered to a raised position above a predetermined height; a drive motor that drives the elevating support mechanism; and a detection means that detects that the gull wing door is opened by a predetermined angle or more. and control means for controlling the drive motor to move the seat corresponding to the opened gull wing door to a raised position when the gull wing door opens by a predetermined angle or more in response to an output from the detection means. be.

An automobile seat device according to a second aspect of the present invention is the automobile seat device according to the first aspect, further comprising a closing operation detection means for detecting a closing operation of the gull wing door, and the control means includes a closing operation detection means for detecting a closing operation of the gull wing door. When the gull wing door closes in response to the output, the drive motor is controlled to move the seat corresponding to the closed gull wing door to the lowered position.

[Effect]

In the automobile seat device according to the first aspect, the automobile seat has a lowered position where the automobile seat can be seated in an appropriate posture via a lifting support mechanism driven by a drive motor, and a raised position which is a predetermined height above the lowered position. Since the seat is supported so that it can be raised and lowered, by moving the seat to the lowered position, you can sit in an appropriate posture, and by moving the seat to the raised position, the seat cushion can be moved up and down. It is possible to improve the ease of getting on and off by moving the armrest upward relative to the gull wing, and the armrest of the gull wing door that has been rotated upward can be easily grasped, thereby improving the operability of closing the door. On the other hand, when the detection means detects that the gull wing door is opened by a predetermined angle or more, the control means drives the drive motor corresponding to the opened gull wing door and moves the seat to the raised position, so that the roof After the roof of the gullwing door, which is a part of the gullwing door, has rotated upward by more than a predetermined angle together with the gullwing door, the seat is raised, ensuring a sufficient distance between the occupant's head and the roof of the gullwing door. The seat can be moved to the raised position while doing so.

In the automobile seat device according to the second claim, the first
The same effect as the claim can be obtained. In addition, when the closing operation of the gull wing door is detected by the closing operation detection means, the control means drives the drive motor to move the seat corresponding to the closed gull wing door to the lowered position. The seat can be moved to the lowered position while ensuring sufficient distance between the head and the roof of the gull wing door.

(Effect of the invention) According to the automobile seat device according to the first claim, the above [
As explained in detail in the section ``Function'', the ease of getting in and out of a car equipped with a gullwing door can be greatly improved, the ease of closing the gullwing door can be improved, and the head of the occupant can be protected when the seat is moved to the raised position. Effects such as being able to prevent the door from coming into contact with the roof part of the gull wing door can be obtained.

According to the automobile seat device according to the second aspect, the same effects as in the first aspect can be obtained. In addition, since the seat is lowered to the lowered position when the gull wing door is closed, it is possible to prevent the occupant's head from coming into contact with the roof of the gull wing door.

〔Example〕

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

In this embodiment, the present invention is applied to a seat device for an automobile equipped with a gull-wing door. In this embodiment, front, rear, left, and right will be defined based on the front, rear, left, and right of the automobile.

As shown in FIGS. 1 to 3, gull wing doors (hereinafter simply referred to as doors) 2 are provided on both left and right sides of an automobile 1, and the left and right doors 2 are located near the center of a roof 3. The door 2 and the roof 3 are each rotatably supported via a pair of hinges 4, and are connected via a pair of front and rear gas stays 5, and the door 2 is fully closed as shown by solid lines in FIG. They are attached to the vehicle body so as to be rotatable between the two positions and the fully open position shown in phantom lines.

In order to minimize the rotation locus of the door 2, as shown in FIG. It is short, and the side sill 9 is correspondingly high.

The automobile 1 is provided with a pair of separate left and right seat devices 10, and each seat device 10 has a seat back 11 and a seat cushion 1, as shown in FIGS.
2, a reclining device 214 for adjusting the inclination angle of the seat pack 11, and a longitudinal position adjustment device 15 for adjusting the longitudinal position of the seat 13.
In addition, in order to prevent the ease of getting on and off due to the side sills 9 being configured high, the seat device main body 16 is provided with a seat device main body 16 having a well-known configuration as shown in FIG. It can be raised and lowered between a lowered position shown by a solid line and a raised position shown by an imaginary line in which the upper end of the seat cushion 12 is moved a predetermined height (for example, 20 cm) above the upper end of the side sill 9. It includes an elevating support mechanism 17 for supporting and an electric motor 18 for driving the elevating support mechanism 17.

The lifting support mechanism 17 is for supporting the seat device main body 16 provided on the base plate 19 so as to be able to rise and fall, and as shown in FIGS.
A pair of front and rear worm shafts 21 and 22 oriented in the front and back direction are connected to approximately the center of the floor panel 20 below 6 via a connecting member 23, and the worm shafts 21 and 22 have worm screws in opposite directions. The worm shafts 21 and 22 are rotatably supported via a pair of front and rear brackets 24, and the worm shafts 21 and 22 are supported by a pair of front and rear brackets 24. , 1jlt122
It is rotationally driven by an electric motor 18 connected to the rear end of the motor.

A pair of left and right rack members 25 extending in the front-rear direction are provided on the floor panel 20 corresponding to the left and right sides of the seat device main body 16, and a rack 25a is formed at the top of each rack member 25. Above are a pair of front and rear rotation shafts 2 extending in the left and right rack members 25 and extending in the left and right direction.
Binions 27 that mesh with the left and right racks 25a are fixed to both ends of both rotating shafts 26, respectively, and worm shafts 21 and 2 are provided approximately in the center of the front and rear rotating shafts 26 in the axial direction.
When the worm wheels 28 meshing with the worm shafts 21 and 2 are respectively fixed and the electric motor 18 is driven to rotate in the forward direction, the worm shafts 21 and
22 and the worm wheel 28, the two rotating shafts 26 are driven to rotate in mutually opposite directions, and the two rotating shafts 26 are driven to rotate in mutually opposite directions through the rack 25a and the pinion 27, as shown by imaginary lines in FIG. When the two rotating shafts 26 are moved in parallel in the direction toward each other and the electric motor 18 is driven to rotate in the opposite direction, both rotating shafts 26 are moved in parallel in the direction away from each other as shown by solid lines.

A pair of left and right link members 29 are connected to both left and right ends of the front and rear rotating shafts 26 so as to be relatively rotatable with a pinion 27 in between, and a guide slit elongated in the longitudinal direction is provided in the middle part of each link member 29. 30 are formed, and a set of two link members 29 on the front side and a set of two link members 29 on the rear side are crossed in a substantially X shape and connected by a connecting pin 31 movably attached to the guide slit 30, and Support brackets 32 extending downward are fixed near the four corners of the base plate 19 that supports the link member 29, and the upper end of the link member 29 is rotatable relative to each of these four support brackets 32 via a shaft member 33 oriented in the left-right direction. As shown in FIG. 4, when the electric motor 18 is driven to rotate in the forward direction and the two rotating shafts 26 approach each other, the seat device main body 16 rises to the raised position shown in the imaginary line, and the electric motor 18 is driven to rotate in the opposite direction and both rotating shafts 26 are separated from each other, they descend to the lowered position shown by the solid line.

The left and right seat devices 10 switch the rotation direction of the electric motor 18 and set the energization timing.
Each of them is equipped with a control device having the following configuration. Note that since the left and right seat devices 210 are provided with control devices having similar configurations, the control device provided in the right seat device 10 will be described.

The instrument panel of the automobile 1 is provided with a mode selection switch 40 (see FIG. 10) for switching between manual mode and auto mode, and a mode selection switch 40 (see FIG. 10) for raising or lowering the seat device main body 16 in the manual mode. A lift switch 41 (see FIG. 10) is provided.

As shown in FIG. 5, the floor panel 20 has a rotating shaft 2.
A lower position detection switch 42 and a higher position detection switch 43 are provided via a bracket, respectively, to detect the lowered position and raised position of the seat device main body 16 by detecting the forward position and backward position of the seat device 6. 43
The limit switch is composed of a two-stage switching type limit switch having an A contact switch and a B contact switch.

As shown in FIG. 3, of the pair of front and rear hinges 4 that rotatably support the door 2, the front hinge 4 is equipped with a pair of limit switches 44 and 45 and a variable resistor 35 for speed adjustment. has been done.

As shown in FIG. 6, the limit switches 44 and 45 are fixed to the front end of the hinge member 4a on the vehicle body side, and the switch parts of the limit switches 44 and 45 are attached to the front end of the hinge bin 4b that rotates together with the door 2. A cam 46 that can be operated by pressing is formed, and the first limit switch 44 is connected to the door 2.
The second limit switch 45 is closed when the door 2 is opened to a predetermined opening degree or more as indicated by the dashed line, and the second limit switch 45 is opened when the door 2 is substantially fully opened as indicated by the dashed line. Note that the opening degree of the door 2 at which the first limit switch 44 is closed is such that when the occupant is seated on the seat device main body 16 held in the raised position, the occupant's head forms part of the roof of the door. The opening degree is set to such an extent that it does not come into contact with the roof portion 2b of No. 2 (see FIG. 2).

To explain the structure of mounting the speed adjusting variable resistor 35, as shown in FIGS. 7 and 8, a cover member 36 is fixed to the rear end of the hinge member 4a on the vehicle body side, and a cover member 36 is fixed to the rear end of the hinge member 4a on the vehicle body side. The rear end protrudes into the cover member 36, and a substantially disc-shaped resistor 37 is spline-fitted to the rear end of the hinge pin 4b. A fixed terminal 38 is fixed to the rear of the resistor 37. 38 projects rearward through an arcuate guide slit 36a formed in the cover member 36;
A guide groove 37a is formed on the outer periphery of the resistor 37, and a variable terminal 39 provided on the cover member 36 is slidably pressed into contact with the inner end surface of the guide groove 37a. The resistance value is set so as to have the characteristics shown in FIG. 9 depending on the degree of opening of the door 2.

The electrical circuit of the seat device i10 will be explained with reference to FIG. 10.

Terminal a1 of the mode selector switch 40 is connected to the positive electrode of the battery, and when the mode selector switch 40 is operated and terminals a1 and b1 are connected, manual mode is set, and when terminal al and terminal C1 are connected, auto mode is set. is set.

First, we will explain the electric circuit in manual mode.

The terminal b1 of the mode selector switch 40 is connected to the terminal a2 of the lift switch 41, and the terminal b of the lift switch 41 is connected to the terminal b1 of the lift switch 41.
2 is connected to the forward rotation terminal 18a of the electric motor 18, terminal C2 is connected to the reverse rotation terminal 18b of the electric motor 18, terminal d2 is open, and the ground side terminal 1 of the electric motor 18
8c is connected to the movable terminal 39 of the speed adjusting variable resistor 35, and the fixed terminal 38 of the speed adjusting variable resistor 35 is grounded.

Operate the mode selector switch 40 to set the manual mode, operate the lift switch 41 to set terminal a2 and terminal b.
When terminals a2 and C2 are connected, the electric motor 18 is driven to rotate in the forward direction, and the seat device main body 16 is driven upward. When terminals a2 and terminal C2 are connected, the electric motor 18 is driven to rotate in the reverse direction, and the seat device main body 18 is driven upward. Driven down. At this time, the resistance value of the speed adjusting variable resistor 35 changes as shown in FIG. 9 according to the opening degree of the door 2, and the rotational speed of the electric motor 18 is adjusted according to this resistance value. Therefore, it rises at a low speed at the start of the ascent and also at a low speed near the end of the ascent, preventing sudden changes in the ascent and descent speed at the start and end of the ascent, making smooth ascent and descent possible.

Next, the electric circuit in auto mode will be explained.

When the door 2 opens at a predetermined angle or more, the seat device main body 16
to the raised position, press the mode selector switch 40.
The terminal C1 is connected to the forward rotation terminal 18a via the first limit switch 44 and the first relay switch 47a of the lifting relay 47, and the terminal CL is connected in parallel to the relay coil 47c of the lifting relay 47. It is grounded through the second relay switch 47b of the raised relay 47, the a contact switch 42a of the lower position detection switch 42, and the b contact switch 43b of the lower position detection switch 43.

On the other hand, in order to move the seat device main body 16 to the lowered position in conjunction with the closing operation of the door 2, the terminal c1 of the mode changeover switch 40 is connected to the second limit switch 45 and the first relay switch 48a of the lowering relay 48. The terminal c1 is connected to the relay coil 48c of the descending relay 48, the second relay switch 48b of the descending relay 48 connected in parallel, and the a contact switch 43a of the ascending position detection switch 43. and the b contact switch 42b of the lower position detection switch 42.

When the seat device main body 16 is in the lowered position with the terminals al and c1 of the mode changeover switch 40 connected to set the auto mode, the a contact switch 42a of the lowered position detection switch 42 is closed. At the same time, the b contact switch 43b of the elevated position detection switch 43
is closed, the relay coil 47c of the ascending relay 47 is excited, and both relay switches 47a and 47b are closed.

Therefore, when the seat device body 16 is held in the lowered position and the door 2 is opened by a predetermined angle or more for getting on and off, the first limit switch 44 is closed and the first limit switch 44 is closed.
Battery voltage is applied to the forward rotation terminal 18a of the electric motor 18 via the limit switch 44 and the first relay switch 47a, and the seat device main body 16 is driven upward.

At this time, the a contact switch 42a is opened, but the second
Since the relay coil 47c continues to be energized via the relay switch 47b and the first relay switch 47a is kept in the closed state, the electricity is transferred to the electric motor 18 via the first limit switch 44 and the first relay switch 47a. continues to be energized. In this way, when the seat device main body 16 moves to the raised position, the b contact switch 43b of the raised position detection switch 43 is opened, thereby cutting off the power to the relay coil 47c, and relay switches 47a and 4
7b is opened and power to the electric motor 18 is cut off,
The seat device main body 16 is held in the raised position.

In the above-mentioned raised position, the a contact switch 43a of the raised position detection switch 43 is closed, and the b contact switch 42b of the lowered position detection switch 42 is closed,
The relay coil 48c of the lowering relay 48 is excited and both relay switches 48a and 48b are closed.

Therefore, when the door 2 is closed after getting on and off, the second limit switch 45 is closed.
and the electric motor 18 via the first relay switch 48a.
A battery voltage is applied to the reverse rotation terminal 18b of the seat device main body 16, and the seat device main body 16 is driven downward. Then, like the lifting relay 47, the first relay switch 48a is held in the closed state, the seat device main body 16 is moved to the lowered position, and the b contact switch 42b of the lowered position detection switch 42 is opened in the lowered position. By doing so, relay coil 4
8c is cut off, relay switches 48a and 48
b is opened, power to the electric motor 18 is cut off, and the seat device main body 16 is held in the lowered position. Note that even in the auto mode, the resistance value of the speed adjusting variable resistor 35 changes depending on the degree of opening of the door 2, so smooth up and down movement is possible as in the manual mode.

Next, the operation of the sheet device 10 will be explained.

In the manual mode, the seat device main body 16 can be moved to the raised or lowered position by operating the lift switch 41, so when getting out of the vehicle, the upper end of the seat cushion 12 should be aligned with the side sill 9 with the door 2 open.
The seat device main body 16 is moved to a raised position that is a predetermined height higher than the upper end of the vehicle so that passengers can easily get off the vehicle, and the seat device main body 16 is held in the raised position with the door 2 open when getting on the vehicle. After riding, the seat device main body 16 can be moved to the lowered position to take an appropriate seating posture.

On the other hand, in the auto mode, when the door 2 is opened at a predetermined angle or more, the seat device main body 16 on the side that is opened moves to the raised position, so that the distance between the occupant's head and the roof portion 2b is maintained sufficiently. The seat device main body 16 can be moved to the raised position while securing the seat device main body 16 held in the raised position.
You can easily get off the train.

When the door 2 is opened to a predetermined angle or more during boarding, the seat device main body 16 on the side that has been opened is moved to the raised position, and the driver can easily sit on the seat device main body 16 held in the raised position. I can do it.

After getting on the vehicle, you will close the door 2 by grasping the arm rate 2a (see Figure 2) of the door 2, but the seat device main body 16
is held in the raised position, the armrest 2a of the door 2 that has rotated upward can be easily grasped to close the door 2, and the seat device main body 16 moves to the lowered position as the door 2 is closed. Therefore, the seat device main body 16 is secured while ensuring a sufficient distance between the occupant's head and the roof portion 2b.
can be moved to the lowered position, and an appropriate sitting posture can be taken in the lowered position.

In the manual mode and auto mode, the seat device main body 16 is controlled by the speed adjusting variable resistor 35 whose resistance value changes as shown in FIG.
Since the lifting speed of the elevator is adjusted, sudden changes in lifting speed at the start and end of lifting can be prevented and smooth lifting can be achieved.

As described above, since the seat device main body 16 is arranged to be able to be raised and lowered between the raised position and the lowered position, when getting on and off, the seat device main body 16 can be moved to the raised position, greatly improving the ease of getting on and off the vehicle. After that, the user can easily close the door 2 by grasping the armrest 2a of the door 2 from above the seat device main body 16 held in the raised position, and also move the seat device main body 16 to the lowered position to take an appropriate seating posture. I can do it. Moreover, the seat device main body 1 when going up and down
6 is adjusted by the speed adjusting variable resistor 35, so that sudden changes in the lifting speed at the start and end of lifting are prevented and smooth lifting is possible.

Furthermore, when the auto mode is selected, the seat device main body 16 is moved to the raised position when the door 2 opens at a predetermined angle or more, and the seat device main body 16 is moved to the lowered position when the door 2 is closed. In addition to saving the effort of operating the lift switch 41 each time the occupant gets on and off, the seat device main body 16 is raised and lowered while maintaining a sufficient distance between the occupant and the roof portion 2b, so that the occupant's head comes into contact with the upper end of the door 2. You can prevent this from happening.

In this embodiment, the variable resistor 35 for speed adjustment is connected to the hinge 4.
Although it is provided in the gas stay 5, it may be provided in the gas stay 5.

That is, as shown in FIG. 11, this speed adjustment variable resistor 35A is connected to a film-like printed resistor 37A stuck to the gas stay 5 Noviston rod 5a, and a fixed terminal provided in the middle of the printed resistor 37A. 38A, and a printed resistor 37A provided on the main body 5b of the gas stay 5.
The variable terminal 39A may be pressed into contact with the variable terminal 39A.

Mio Kubetsu's side> The above control device may be configured as follows. Note that the configuration other than the control device is the same as that of the previous embodiment, so a description thereof will be omitted.

This control device includes a door switch 50 that detects the open state of the door 2, a pair of opening detection sensors 51 that detect the opening of the left and right doors 2, and a rotor provided at the rear of the left and right electric motors 18. Clear encoder 52 and left and right electric motors 18
A control unit 53 is provided to control the rotation direction and amount of rotation.

As shown in FIG. 2, each door switch 50 is provided at the upper end of the side sill 9 so that the switch part is operated at the lower end of the door 2, and is turned off when the door 2 is closed.
This is a bush switch with a general configuration that turns on when the door 2 is opened.

As shown in FIG. 12, each of the opening degree detection sensors 51 is
Each opening detection sensor 51 is provided with a pair of detection parts 51a and 51b made of a semiconductor magnetic resistance element, which are attached to the hinge members 4a of the front pair of hinges 4 on the vehicle body side. 51a and 51b are arranged facing a plurality of teeth to be detected 54 formed at predetermined intervals at the rear end of the hinge bin 4b, and are also arranged at positions shifted by a predetermined angle in phase in the circumferential direction of the hinge bin 4b, When the door 2 is opened/closed, the rain detection sections 51a and 51b detect the opposing detection teeth 54, respectively, and the rain detection sections 51a and 51b output detection signals. Note that when the door 2 is opened, the detection signal from the detection section 51a is output before the detection section 51b, and when the door 2 is closed, the detection signal from the detection section 51b is output before the detection section 51a. be done.

As shown in FIG. 13, the control unit 53 includes four detection parts 51a of the left and right opening degree detection sensors 51.
- Detection signals from the left and right electric motors 18 are inputted, as well as detection signals from the encoders 52 of the left and right electric motors 18, and the control unit 53 outputs drive currents of control voltages to be described later to the left and right electric motors 18. .

The control unit 53 is mainly composed of a microcomputer, and each detection section 51a.
It is equipped with an A/D converter for A/D converting the detection signal from 51b, a drive circuit for driving the electric motor 18, etc. A control programmer l for controlling the seat elevation and lowering for driving the electric motor 18 in forward or reverse rotation to adjust the height position of the seat device main body 16 and a memory map necessary for this control are input and stored in advance.

Next, the above-mentioned seat elevation control will be explained with reference to the flowchart in FIG. Seat elevation control for controlling the height of the right seat device main body 16 will be described. Si
(i=1.2.3, . . . ) indicates each step.

When the door switch 50 is turned on by the opening operation of the door 2, this control is repeated every minute time (for example, 2 m5ec), and first, the detection signal from the opening detection sensor 51 and the detection signal from the encoder 52 are read. Rare (S 1
), the current opening degree θゎ of the door 2 is calculated based on the output signal from the opening detection sensor 51 (S2). Furthermore, door 2
The opening degree θ is determined by detecting the number of outputs from the detection unit 51a (the number of outputs of No. 3 is zero when the door 2 is closed, adding it when the door 2 is opening, and subtracting it when the door 2 is closing). It is obtained by integrating the number of times and the angle formed by the adjacent detected parts 54.

Next, the target height H of the seat device main body 16 according to the opening degree of the door 2 is calculated from the map shown in FIG. 15 using the current door opening degree θゎ (S3), and then the electric motor The target rotation angle θ□ of the electric motor 16 is calculated using the target height H from the map shown in FIG. (S5), and then the target rotation angle θ
The deviation Δθ between 8 and the current rotation angle θ□ is Δθ−θ9−θ
It is calculated using the formula □ (S6).

Next, it is determined whether the deviation Δθ is Δθ=O, that is, whether the seat device main body 16 is maintained at the target height H (S7), and the target height H is changed by the opening/closing operation of the door 2. If the determination is No, the routine from 88 to S14 is executed, and the electric motor 18 is driven to rotate forward or backward, and the height of the seat device main body 16 is adjusted to the target height H.

That is, the rotation speed ω of the electric motor 18 required this time is calculated by dividing the absolute value lΔθ1 of the deviation Δθ by the minute time (for example, 2m5ec) during which the seat elevation control is repeated (S8), and then the rotation speed ω of the electric motor 18 is calculated. The control voltage ■ to be applied is calculated using the rotation speed ω of the electric motor 18 from the map shown in FIG. 17 (39), and then it is determined whether the control voltage V is larger than the predetermined voltage α (SIO ), Yes
In the case of , the control voltage ■ is set to ■−α (S11).
If the answer is No, the process directly proceeds to 312. Note that the predetermined voltage α is an upper limit voltage for preventing the lifting speed of the seat device main body 16 from becoming too high.

In S12, it is determined whether the deviation Δθ is Δθ>0, that is, whether the target height H is higher than the current height of the seat device main body 16, and if Yes, the electric motor 18 is driven by the control voltage ■. A current is output (S13), and the electric motor 18
is driven in forward rotation at a rotation speed ω according to the control voltage ■, and N
In the case of o, a drive current in the opposite direction to the control voltage ■ is output to the electric motor 18 (S15), and the electric motor 18 is driven to rotate in the reverse direction at a rotational speed ω corresponding to the control voltage ■.

When the above steps 31 to S14 are repeated and the seat device main body 1B moves to the target height H, the determination in S7 is Yes and the electric motor 18 is stopped (Si2). As shown in the characteristics of FIG. 15, the rising speed is set to be low near the start and end of the rise of the seat device main body 16.

Next, the operation of the seat elevation control will be explained.

When the door 2 is opened, the door 2 moves at a predetermined angle θ. After the above-mentioned opening operation, the electric motor 1 on the side of the door 2 that was opened
A predetermined control voltage ■ is applied to the seat device main body 16.
is raised to a target height H corresponding to the opening degree of the door 2 in conjunction with the opening operation of the door 2, and when the door 2 is closed, the door 2 changes from the fully open position to the predetermined opening degree θ. While the door 2 is being closed, a control voltage ■ is applied to the electric motor 18 of the two closed doors, and the seat device main body 16 moves to the target height H according to the opening degree of the door 2 in conjunction with the closing operation of the door 2. Therefore, the seat device main body 16 can be raised and lowered while keeping the distance between the occupant's head and the roof portion 2b substantially constant.

The seat device main body 16 is held in the raised position when the door 2 is fully opened, and is held in the lowered position when the door 2 is fully closed, so that the ease of getting in and out of the vehicle is greatly improved as in the previous embodiment. Note that even if the door 2 cannot be fully opened due to parking space, etc., if the door 2 is opened by a predetermined opening degree θ6 or more, the seat device main body 16 will rise accordingly, ensuring relatively good ease of getting in and out. I can do it.

As shown in Figure 2%15, since the rate of change of the target height H with respect to the opening degree θゎ of the door 2 is suppressed when the door 2 is fully open and near the fully closed position, the change rate of the target height H with respect to the opening degree θゎ of the door 2 is suppressed. The lifting speed at the end of the process is suppressed to a low level, allowing smooth lifting and lowering.

The control voltage ■ applied to the electric motor 18 has a deviation Δθ
Since the calculation is performed using the target rotation speed ω that is set according to The lifting speed of the device main body 16 becomes low, and the seat device main body 16 can be smoothly stopped at the target height H according to the opening degree of the door 2.

As described above, the control device described above can greatly improve the ease of getting on and off the vehicle, as in the embodiment described above, and also allows for smooth ascending and descending. In addition, since the height of the seat device main body 16 is set according to the opening degree of the door 2, even if the door 2 is held in a half-open state, the seat device main body 16 will rise unnecessarily, causing the occupant's head to fall. can be prevented from coming into contact with the roof part 2b.

In this embodiment, the opening degree of the door 2 is calculated from the rotation angle of the hinge bin 4b, but a sensor is provided to detect the stroke amount of the piston rod 5b of the gas stay 5, and the opening degree of the door 2 is calculated from the stroke amount. You can do it like this.

In this embodiment, the seat device main body 16 is raised when the door 2 opens to a predetermined opening degree or more, but the seat device main body 16 may be raised after the door 2 is fully opened.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of an automobile, FIG. 2 is a vertical sectional view of the automobile, and FIG.
4 is a side view of the main part of the seat device, FIG. 5 is a perspective view of the elevating support mechanism, FIG. 6 is a side view of the main part of the hinge, and FIG. 7 is a vertical sectional view of the main part of the hinge. Figure 8 is a perspective view of the speed adjustment volume, Figure 9 is a characteristic diagram of the speed adjustment volume,
FIG. 10 is an electric circuit diagram of the seat device, FIG. 11 is a vertical sectional view of the main part of the gas stay when a speed adjustment volume is provided in the gas stay, and FIGS. 12 to 17 are related to the first modification. Fig. 12 is a perspective view of the main parts of the hinge, Fig. 13 is a block diagram of the control system of the seat device, Fig. 14 is a flowchart of the seat elevation control routine, and Fig. 15 is the target of the door opening and the seat device main body. Diagram showing the relationship between heights, 1st
FIG. 6 is a diagram showing the relationship between the rotation angle of the electric motor and the height of the seat device body, and FIG. 17 is a characteristic diagram of the electric motor. 1...Car, 2...Gullwing door, 17...
Lifting support mechanism, 13...Seat, 16...Seat device main body, 18...Electric motor, 44...First limit switch, 45...Second limit switch, 5
1... Opening degree detection sensor, 51a, 51b... Detection section,
53...Control unit. Figure 1 1: Car 2: Gull wing door Figure 4 Figure 5 Figure 6 People Figure 9 Figure 11 Figure 5A Figure 12 Figure 13 Q

Claims (2)

[Claims] (1) In a seat device for a car equipped with a gull wing door, the car seat is supported so as to be movable up and down between a lowered position where the car seat can be sat in an appropriate posture and a raised position at a predetermined height above the lowered position. an elevating support mechanism; a drive motor for driving the elevating support mechanism; a detection means for detecting that the gull wing door is opened by a predetermined angle or more; A seat device for an automobile, sometimes comprising a control means for controlling a drive motor so as to move a seat corresponding to an opened gull wing door to a raised position. (2) A closing operation detection means for detecting a closing operation of the gull wing door is provided, and when the gull wing door is closed in response to an output from the closing operation detection means, the control means is configured to control a seat corresponding to the closed gull wing door. 2. The vehicle seat device according to claim 1, wherein the drive motor is controlled to move the seat to the lowered position.