KR102054900B1 - System for controlling posture of vehicle seats - Google Patents

Abstract

A posture control system for a vehicle seat is disclosed.
An attitude control system for a vehicle seat according to an exemplary embodiment of the present invention includes at least one cushion and a seat cushion including a plurality of cushion bolsters, a plurality of lumber supports, and a seat back including a plurality of bolsters, seat cushions, and seat backs. The seat sensing module senses the seating position and posture of the occupant, and learns the posture type and posture correction information of the occupant through the seat sensing module. It includes a support, and a posture control module for controlling the driving of each of the plurality of bolster, it is possible to automatically control the lumber support, bolster, cushion and cushion bolster of the vehicle seat by checking and learning the attitude of the vehicle occupant in real time.

Description

Posture control system for vehicle seats {SYSTEM FOR CONTROLLING POSTURE OF VEHICLE SEATS}

The present invention relates to a vehicle seat posture control system that can improve the posture correction effect and ride comfort of the vehicle occupant by automatically controlling the lumber support, the bolster, the cushion, and the cushion bolster of the vehicle seat by checking and learning the attitude of the vehicle occupant. .

In general, the car seat is mounted inside the car so that the passenger can comfortably reach the destination, and is composed of a head rest, a seat back, a seat cushion, and the like.

The headrest is a part installed to support the head on the seatback that supports the passenger's back, and is attached to prevent the head injury of the passenger due to a collision or the like and to comfort the head. The seat cushion supports the hips of the occupant. The seatback and the seat cushion support the occupant's body directly, and are composed of a seat frame and a spring, and the seat cover surrounds the seat frame and the spring.

Side bolsters which partially protrude forward are provided at both sides of the front surface of the seatback, that is, at portions where both ends of the back of the occupant contact each other. This side bolster will support both the back of the occupant. A cushion bolster is also provided on both sides of the seat cushion, which is configured to support both hips.

Conventionally, side bolsters, cushion bolsters, and the like of a vehicle seat are provided in a fixed state, and there is a problem that the posture of the occupant is pulled to one side by centrifugal force during the change of direction or turning of the vehicle. In particular, if the driver's posture is pulled to one side, a greater problem may occur such as causing a traffic accident. Accordingly, Patent Publication No. 10-1388376 (2014, 4, 16 registration) and the like to obtain the information according to the centrifugal force or rapid acceleration from the driving information of the vehicle, and the technology for controlling the inclination of the vehicle seat according to the centrifugal force or rapid acceleration is proposed. It also became.

However, the control method of the vehicle seat according to the prior art controls the attitude of the occupants only in accordance with the change in the driving information of the vehicle, it is not possible to control the attitude of the occupants unless the situation such as sudden change of direction or rapid acceleration. The position of the occupants may be distorted in the wrong position due to the appearance and structure of the vehicle seat, personal habits, and the like. Therefore, the conventional vehicle seat control methods cannot correct an incorrect driving posture or a riding posture, and there is a problem of not actively solving the inconvenience and fatigue caused by the incorrect posture.

Technical problem of the present invention is to check and learn the attitude of the vehicle occupants in real time to automatically control the lumber support, bolster, cushion and cushion bolster of the vehicle seat, to correct the wrong driving posture or riding posture and the inconvenience caused by the wrong posture It is to provide a posture control system for a vehicle seat that can actively resolve fatigue.

According to an aspect of the present invention, a posture control system for a vehicle seat includes at least one cushion and a seat cushion including a plurality of cushion bolsters, a plurality of lumber supports, and a seat back including a plurality of bolsters. The seat cushion module is configured in the seat cushion and the seat back to sense the seating position and posture of the occupant, and the seat sensing module learns the posture type and posture correction information of the occupant, and includes at least one cushion and a plurality according to the posture correction information. And a posture control module for controlling driving of each of the cushion bolsters, the plurality of lumber supports, and the plurality of bolsters.

The attitude control system for a vehicle seat according to an embodiment of the present invention having various technical features as described above automatically checks and learns the attitude of the vehicle occupant in real time to automatically control the lumber support, bolster, cushion, and cushion bolster of the vehicle seat. . Therefore, it is possible to correct the wrong driving posture or riding posture and actively resolve the discomfort and fatigue caused by the wrong posture. In addition, the posture correction effect and the riding comfort of the vehicle occupant can be achieved.

1 is a block diagram showing a posture control system for a vehicle seat according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating in detail the seat sensing module illustrated in FIG. 1.
3 is a block diagram illustrating the posture control module of FIG. 2 in detail.
FIG. 4 is a flowchart for describing a posture detection method of the posture detector of FIG. 3.
5 is a diagram illustrating a sensing method through the seat sensing module of FIG. 2 and the sensing signal input unit of FIG. 3.
FIG. 6 is a flowchart illustrating a method for checking balance and detecting a correction value of the correction value detector illustrated in FIG. 3.
FIG. 7 is a flowchart illustrating a posture type determination and verification method of the type verification unit illustrated in FIG. 3.
8 is a flowchart illustrating a control amount calculation method of a cushion and a cushion bolster of the control unit shown in FIG. 3.
FIG. 9 is a flowchart illustrating a method for calculating a lumber support control amount of the controller illustrated in FIG. 3.
FIG. 10 is a flowchart for describing a method for calculating a control amount of a bolster part of the controller illustrated in FIG. 3.

The above objects, features, and advantages will be described in detail with reference to the accompanying drawings, whereby those skilled in the art may easily implement the technical idea of the present invention. In describing the present invention, when it is determined that the detailed description of the known technology related to the present invention may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing a posture control system for a vehicle seat according to an embodiment of the present invention.

The attitude control system for a vehicle seat illustrated in FIG. 1 includes a seat cushion 100, a seatback 300, a seat sensing module 200, and an attitude control module 500.

The seat cushion 100 is a lower support seat on which the occupant is seated and includes at least one cushion 120 supporting the hips and thighs of the occupant, and a plurality of cushion bolsters 110a and 110b.

At least one cushion 120 is configured at the lower end of the hip position of the seat cushion 100 to support the hip position of the occupant. The at least one cushion 120 includes a block cushion configured in units of blocks and at least one motor for controlling the degree of expansion of each block cushion. Thus, each cushion 120 is to adjust the degree of expansion of each block cushion in accordance with the cushion control signal and the control method of the posture control module 500.

Each cushion bolster (110a, 110b) is configured in the side portion of the hip and thigh position of the seat cushion 100, and supports both side portions of the hip and thigh. Each cushion bolster (110a, 110b) includes a bolster composed of a plurality of block units and at least one motor for controlling the degree of expansion of each bolster block. Thus, each cushion bolster (110a, 110b) is to adjust the degree of expansion of each cushion bolster in accordance with the cushion bolster control signal of the attitude control module 500.

The seatback 300 is a backrest of the occupant seated on the seat cushion 100, and includes a plurality of lumber supports 320, 330, 420, and a plurality of bolsters 310a, 310b, 410a, which support the back, back, and shoulders of the occupant. 410b).

The plurality of lumber supports 320, 330, and 420 are configured to support the back portion of the seatback 300, and also support the waist and shoulder portions together with the occupant's back. The plurality of lumber supports 320, 330, and 420 may include lumbers configured in at least one block unit, and at least one motor for controlling the degree of expansion of each lumber. Accordingly, each of the lumber supports 320, 330, and 420 allows the expansion degree of each lumber to be adjusted according to the lumber control signal and the control method of the posture control module 500.

The plurality of bolsters 310a, 310b, 410a, and 410b are configured on the side and shoulder side portions of the seat back 300 to support both sides and shoulders of the occupant. Each of the bolsters 310a, 310b, 410a, and 410b includes side bolster blocks formed in block units and at least one motor for controlling the degree of expansion of each bolster block. Thus, each bolster (310a, 310b, 410a, 410b) is to adjust the degree of expansion of each bolster block in accordance with the bolster control signal of the attitude control module 500.

The seat sensing module 200 is configured at the front seating portion and the backrest portion of the seat cushion 100 and the seat back 300 to output touch and pressure sensing signals according to the seating position and weight of the occupant.

FIG. 2 is a diagram illustrating in detail the seat sensing module illustrated in FIG. 1.

As shown in FIG. 2, the seat sensing module 200 senses the touch and pressure in the Y-axis direction, which are the front and rear directions of the seat cushion 100, and outputs the Y-axis direction touch and pressure sensing signals of the seat cushion 100. The second sensing unit 240 and the second sensing unit for outputting the X-axis touch and pressure sensing signal of the seat cushion 100 by sensing the touch and pressure in the X-axis direction, which is the left and right directions of the seat cushion 100 250.

In addition, the seat sensing module 200 senses the touch and pressure in the Y-axis direction, which is the up and down direction of the seatback 300, and outputs the Y-axis touch and pressure sensing signals of the seatback 300 to the third sensing unit 210. The fourth sensing unit 220 which outputs the first X-axis direction touch and pressure sensing signals of the seatback 300 by sensing the touch and pressure in the first X-axis direction, which are the left and right directions of the seatback 300, and the seatback ( And a fifth sensing unit 230 for sensing a touch and pressure in the second X-axis direction in the left and right directions of the 300 and outputting a second X-axis touch and pressure sensing signal of the seatback 300.

Each of the first to fifth sensing units 210 to 250 includes a plurality of touch sensors or pressure sensors arranged side by side in the X-axis direction or the Y-axis direction, so that the touch and pressure sensing signals according to the seating and weight of the occupant are real-time. And generate it to the posture control module 500.

The posture control module 500 detects and learns the posture of the occupant through the seat sensing module 200 to detect the posture type and posture correction information of the occupant. The posture control module 500 may include at least one cushion 120, a plurality of cushion bolsters 110a and 110b, a plurality of lumber supports 320, 330 and 420, and a plurality of bolsters 310a, 310b and 410a according to the posture correction information. 410b) Generates and outputs respective control signals for controlling the driving.

Specifically, the posture control module 500 is the X and Y axis direction touch and pressure sensing signal of the seat cushion 100, the Y axis direction touch and pressure sensing signal of the seat back 300, In addition, the first and second X-axis touch and pressure sensing signals in the left and right directions of the seatback 300 are respectively received.

The posture control module 500 detects and analyzes a posture, a position, a center, and a balance of the occupant by comparing and analyzing each input touch and pressure sensing signal, and a correction value for correcting the posture of the occupant according to the analysis result. Create Accordingly, the posture control module 500 determines the seating posture type of the occupant based on the detected correction value, and compares the identified type information with previously accumulated and stored information. The driving of each cushion 120, cushion bolsters 110a, 110b, lumber supports 320, 330, 420, and bolsters 310a, 310b, 410a, and 410b are controlled to correct the posture of the occupant according to the comparative analysis result. To generate and output the control signals for.

The at least one cushion 120, the plurality of cushion bolsters 110a, 110b, the plurality of lumber supports 320, 330, 420, and the plurality of bolsters 310a, 310b, 410a, 410b are control signals from the posture control module 500. Each motor is configured to operate accordingly. According to the motor operation, the degree of expansion of each cushion 120, cushion bolsters 110a and 110b, lumber supports 320, 330 and 420, and bolsters 310a, 310b, 410a and 410b are controlled.

3 is a block diagram illustrating the posture control module of FIG. 2 in detail.

The posture control module 500 illustrated in FIG. 3 includes a sensing signal input unit 510, a posture detector 520, a center detector 530, a correction value detector 540, a type checker 550, a database 560, A controller 570 and a driver 582.

The sensing signal input unit 510 is the X and Y axis direction touch and pressure sensing signals of the seat cushion 100, the Y axis direction touch and pressure sensing signals of the seat back 300, and the seat back 300 through the seat sensing module 200. The first X-axis and the second X-axis direction touch and pressure sensing signals in the left and right directions are respectively input. The sensing signal input unit 510 filters and A / D-converts the touch and sensing signals of the X-axis and the Y-axis of the seat cushion 100, the Y-axis of the seatback 300, the first X-axis, and the second X-axis, respectively. The posture detection unit 520 transmits the result. Here, the touch and sensing signals of the X-axis and Y-axis of the A / D-converted seat cushion 100, the Y-axis of the seatback 300, the first X-axis and the second X-axis are the attitude detector 520 and the center detector ( 530, the correction value detector 540, and the like, respectively.

FIG. 4 is a flowchart for describing a posture detection method of the posture detector of FIG. 3. FIG. 5 is a diagram illustrating a sensing method through the seat sensing module of FIG. 2 and the sensing signal input unit of FIG. 3.

4 and 5, the posture detector 520 may include the X and Y axes of the seat cushion 100, the Y axis and the first X axis of the seat back 300 respectively input from the sensing signal input unit 510. The touch and sensing signals of the second X-axis are respectively analyzed to generate posture information of a passenger seated in the seat cushion 100 and the seatback 300.

Referring to FIG. 5, first, the posture detection unit 520 starts to sense the weight in the third sensing unit 210 through the Y-axis touch and pressure sensing signals of the third sensing unit 210 of the seatback 300. Position Y'a point information is first detected. Then, the third sensing unit 210 detects the Y'b point information, which is the position where the weight is detected because the weight is not detected. In this way, when the Y'a point information and the Y'b point information are detected, the intermediate point between the Y'a point information and the Y'b point information is stored as the Yn point information.

In addition, the posture detection unit 520 may start position Ya point information at which the weight is detected by the first sensing unit 240 through the Y-axis direction touch and pressure sensing signal of the first sensing unit 240 of the seat cushion 100. Also detect. In addition, since the weight is not detected by the first sensing unit 240, the Yb point information, which is a position where the weight detection is completed, may be detected. Similarly, when Ya point information and Yb point information are detected, intermediate point information of Ya point information and Yb point information can also be stored.

The posture detector 520 analyzes the touch and pressure sensing signals of each of the second and second sensing units 250 and 250 and 230 of the seat cushion 100 and the respective sensing units. The information of the weight detection start point, the weight detection end point, and the intermediate point can all be detected. Accordingly, the posture detection unit 520 analyzes all the start point information, the intermediate point information, and the end point information for which the weight is detected for each of the first to fifth sensing units 210 to 250, and synthesizes the sheet position by simulating it. In addition, the boarding posture and the position of the occupant in the front-back direction (or front-back direction) may be analyzed.

The center detector 530 analyzes touch and sensing signals of the X-axis and the Y-axis of the seat cushion 100, the Y-axis of the seatback 300, the first X-axis, and the second X-axis, respectively. The center point information of the occupant seated in the seatback 300 is calculated.

Similarly, referring to FIG. 5, the center detector 530 may be weighted by the second sensing unit 250 through the X-axis direction touch and pressure sensing signals of the second sensing unit 250 configured in the seat cushion 100. Detects the detected starting position Xa point information. Then, the second sensing unit 250 detects the Xb point information, which is a position where the weight is detected because no weight is detected. Subsequently, when the Xa point information and the Xb point information are detected, the intermediate position between the Xa point information and the Xb point information is stored as the Xn point information.

In addition, the center detector 530 detects starting position X'a point information at which the weight is sensed by the fourth sensing unit 220 through the first X-axis direction touch and pressure sensing signal of the fourth sensing unit 220. do. In addition, since the weight is not detected by the fourth sensing unit 220, X'b point information, which is a position where the weight is detected, is detected. Subsequently, when the X'a point information and the X'b point information are detected, the intermediate position between the X'a point information and the X'b point information is stored as the X'n point information.

Similarly, the center detector 530 detects the start position X ″ point information at which the weight is sensed by the fifth sensing unit 230 through the second X-axis direction touch and pressure sensing signal of the fifth sensing unit 230. Then, the fifth sensing unit 230 detects X ″ b point information, which is a position where the weight is detected because the weight is not detected. Subsequently, when X ″ a point information and X ″ b point information are detected, an intermediate position between X ″ a point information and X ″ b point information is stored as X ″ n point information.

Thereafter, the center detector 530 calculates M1 and M2 values, which are the inclination scale values of the occupants, by using Equation 1 below.

[Equation 1]

In this way, the center detector 530 analyzes all of the touch and sensing signals of the X and Y axes of the seat cushion 100, the Y axis of the seat back 300, the first X axis, and the second X axis, respectively, to determine the seat cushion ( 100 and the left and right tilt scale values M1 and M2 of the occupant seated in the seatback 300 may be calculated.

FIG. 6 is a flowchart illustrating a method for checking balance and detecting a correction value of the correction value detector illustrated in FIG. 3.

Referring to FIG. 6, the correction value detector 540 uses the seat cushion 100 and the seat cushion 100 using the center point information Yn of the posture detector 520 and the inclination scale values M1 and M2 of the center detector 530. After analyzing the balance of the weight of the occupant seated on the seatback 300 and the weight of the weight, the correction value for correcting the posture of the user is calculated.

In detail, when the inclination scale values M1 and M2 of the center detector 530 are less than a predetermined level, the correction value detector 540 may assume that the occupant is sitting in an upright position. That is, M1 may be M2M0.

The correction value detector 540 analyzes the touch and sensing signals of the X-axis and the Y-axis of the seat cushion 100, the Y-axis of the seatback 300, the first X-axis, and the second X-axis, respectively, and the seat cushion 100. And the maximum weight, minimum weight, average weight information W of the occupant seated in the seatback 300 can be calculated. As illustrated in FIG. 6, the weight information Wm detected through the respective touch and sensing signals may be sequentially compared with the weight information Xn of adjacent sensors. In addition, the balance of the weight and weight of the occupant is analyzed according to the size of the weight information. Here, m and n are integers except 0.

Thereafter, the correction value detector 540 calculates a correction value reflecting a balance according to the weight of the occupant and the weight of the occupant, that is, the correction value C for correcting the posture of the user using Equation 2 below.

[Equation 2]

Here, Xl is the maximum value among the weight information W- (Wn-4) of the sensors adjacent to each other, and Xr is the maximum value among the weight information W- (Wm-4) of the other adjacent sensors.

FIG. 7 is a flowchart illustrating a posture type determination and verification method of the type verification unit illustrated in FIG. 3.

Referring to FIG. 7, the type checking unit 550 detects a passenger's seating posture type based on the correction value C calculated by the correction value detecting unit 540 and information previously accumulated and stored in the database 560.

In detail, the type checking unit 550 may perform the X-axis and the Y-axis, the seatback (for example, T min (T min), where T is an integer except 0) in real time or in a predetermined period. The parameters analyzed from the touch and sensing signals of the Y-axis, the first X-axis, and the second X-axis of 300) are all compared with previously accumulated and stored information. Here, the parameters analyzed from the respective touch and sensing signals may be used to correct center point information (Yn), tilt scale values (M1, M2), maximum weight, minimum weight, average weight information W, and posture correction of the respective sensor units. Is the correction value C.

On the other hand, the pre-accumulated and stored information includes a plurality of parameter information according to a plurality of preset types, that is, center point information (Yn), inclination scale values (M1, M2), maximum weight, minimum weight, and average weight, respectively, according to a set type. Information W and correction value C for posture correction.

As such, the type checking unit 550 may preset a plurality of parameters respectively analyzed from touch and sensing signals of the X-axis and the Y-axis, the Y-axis of the seatback 300, the first X-axis, and the second X-axis. Compared with the plurality of parameter information according to the type, the type information and the parameter information having the highest similarity are detected.

The control unit 570 compares the type information identified by the type checking unit 550 with previously accumulated and stored information, so that the posture of the occupant can be corrected, and each cushion 120, cushion bolsters 110a and 110b, and lumber support And generate respective control signals for controlling the driving of the 320, 330, and 420 and the bolsters 310a, 310b, 410a, and 410b.

In other words, the controller 570 compares the type information identified by the type checking unit 550 and the parameter information about the type information with the preset parameter information of the normal posture. And to control the driving of each cushion 120, cushion bolster (110a, 110b), lumber support (320, 330, 420), and bolster (310a, 310b, 410a, 410b) so that the posture of the occupant can be corrected according to the comparison result Each control signal is generated.

8 is a flowchart illustrating a control amount calculation method of a cushion and a cushion bolster of the control unit shown in FIG. 3.

Referring to FIG. 8, the controller 570 may analyze the type information and the parameter information about the type information identified by the type checking unit 550 with reference parameter information of a predetermined posture so that the posture of the occupant may be corrected. A control signal is generated for each cushion 120 and cushion bolsters 110a and 110b.

To this end, the controller 570 firstly analyzes the parameters (center point information Yn) and the tilt scale value M1, respectively, which are analyzed from the touch and sensing signals of the Y-axis, the first X-axis, and the second X-axis of the seatback 300. M2), maximum weight, minimum weight, average weight information W, and correction value C) for posture correction are all read.

Accordingly, the controller 570 first calculates the maximum operating range of each cushion 120 and the cushion bolsters 110a and 110b, and calculates each cushion 120 and the cushion bolster based on the inclination scale values M1 and M2. The left and right correction ratios of 110a and 110b are calculated. The correction ratios of the cushions 120 and the cushion bolsters 110a and 110b are recalibrated within the maximum range by reflecting the center point information Yn, the inclination scale values M1 and M2, and the average weight information W.

The controller 570 controls the degree of expansion of each cushion 120 and the cushion bolsters 110a and 110b by reflecting the calculated correction value C in the left and right correction ratios of the cushion 120 and the cushion bolsters 110a and 110b. To generate a cushion bolster control signal.

FIG. 9 is a flowchart illustrating a method for calculating a lumber support control amount of the controller illustrated in FIG. 3.

Referring to FIG. 9, the controller 570 may analyze the type information and the parameter information about the type information identified by the type checking unit 550 with reference parameter information of a predetermined posture so that the attitude of the occupant may be corrected. It generates a control signal of each lumber support (320, 330, 420).

To this end, the control unit 570 is a parameter (center point information (Yn), tilt scale values (M1, M2) analyzed from the touch and sensing signals of the Y-axis, the first X-axis and the second X-axis of the seatback 300, respectively). ), Maximum weight, minimum weight, average weight information W, and correction value C) for posture correction.

Accordingly, the controller 570 first calculates the maximum operating range of each of the lumber supports 320, 330, and 420, and analyzes the tilt scale values M1 and M2 and the center point information Yn. Then, it is checked whether the occupant is located in the center by checking whether the degree of inclination coincides with the center point information Yn.

The controller 570 calculates a control ratio of each of the lumber supports 320, 330, and 420 within the maximum range by reflecting the center point information Yn, the inclination scale values M1, M2, and the average weight information W, and then displays each lumber support ( Lumber support control signals for controlling the degree of expansion of the 320, 330, 420 are generated.

FIG. 10 is a flowchart for describing a method for calculating a control amount of a bolster part of the controller illustrated in FIG. 3.

Referring to FIG. 10, the controller 570 may analyze the type information and the parameter information about the type information identified by the type checking unit 550 with reference parameter information of a predetermined posture to correct the posture of the occupant. A control signal for each bolster 310a, 310b, 410a, 410b is generated.

To this end, the control unit 570 is a parameter (center point information (Yn), tilt scale values (M1, M2) analyzed from the touch and sensing signals of the Y-axis, the first X-axis and the second X-axis of the seatback 300, respectively). ), Maximum weight, minimum weight, average weight information W, and correction value C) for posture correction.

The controller 570 first checks the contact area of the occupant who is in contact with the seatback 300 in order to control the respective bolsters 310a, 310b, 410a, and 410b. Here, the ratio of the contact area of the occupant to the area of the front surface of the seatback 300 may be Q%. The occupant area ratio Q% of the occupant can be calculated using Equation 3 below.

[Equation 3]

Thereafter, the controller 570 calculates an operation ratio value U% for each bolster 310a, 310b, 410a, and 410b. The operating ratio value U% for each bolster 310a, 310b, 410a, or 410b can be calculated using Equation 4 below.

[Equation 4]

After calculating the operation ratio U% for each bolster 310a, 310b, 410a, 410b, the operation ratio for each bolster 310a, 310b, 410a, 410b is corrected. The operating ratio correction for each bolster 310a, 310b, 410a, 410b can be corrected using Equation 5 below.

[Equation 5]

The controller 570 recalibrates the operation ratio correction for each bolster 310a, 310b, 410a, 410b, and then reflects the calculated correction value C to the left and right correction ratios of the bolsters 310a, 310b, 410a, 410b. In addition, a control signal for controlling the degree of expansion of each bolster (310a, 310b, 410a, 410b) is generated.

Finally, the driver 582 responds to respective control signals for controlling the driving of the cushions 120, the cushion bolsters 110a and 110b, the lumber supports 320, 330 and 420, and the bolsters 310a, 310b, 410a and 410b. Thus, the motors configured in the cushions 120, the cushion bolsters 110a and 110b, the lumber supports 320, 330 and 420, and the bolsters 310a, 310b, 410a and 410b are driven.

As described above, the vehicle seat posture control system according to the embodiment of the present invention checks the vehicle occupant's posture in real time and learns the cushions 120, cushion bolsters 110a and 110b of the vehicle seat, and lumber. Supports 320, 330, 420, and bolsters 310a, 310b, 410a, 410b are automatically controlled. Therefore, it is possible to correct the wrong driving posture or riding posture and actively resolve the discomfort and fatigue caused by the wrong posture. In addition, the posture correction effect and ride comfort of the vehicle occupant can be improved.

The various embodiments disclosed in the specification and drawings are merely presented as specific examples for clarity and are not intended to limit the scope of the various embodiments of the present invention. Therefore, the scope of the various embodiments of the present invention is to be included in the scope of the various embodiments of the present invention in addition to the embodiments described herein, all changes or modifications derived based on the technical spirit of the various embodiments of the present invention. Should be interpreted.

100: seat cushion
110a. 110b: plural cushion bolster
120: cushion
200: sheet sensing module
300: seatback
500: attitude control module

Claims (8)

A seat cushion comprising at least one cushion and a plurality of cushion bolsters;
A seatback comprising a plurality of lumber supports and a plurality of bolsters;
A seat sensing module configured in the seat cushion and the seat back to sense a seating position and a posture of a passenger;
The posture type and posture correction information of the occupant is learned through the seat sensing module, and the at least one cushion, the plurality of cushion bolsters, the plurality of lumber supports, and the plurality of bolsters are respectively configured according to the posture correction information. A posture control module for controlling driving,
The sheet sensing module
A first sensing unit configured to sense the touch and pressure in the Y-axis direction, which are the front and rear directions of the seat cushion, and to output the Y-axis direction touch and pressure sensing signals of the seat cushion;
A second sensing unit configured to sense a touch and pressure in an X-axis direction in the left and right directions of the seat cushion and output a X-axis touch and pressure sensing signal of the seat cushion;
A third sensing unit configured to sense the touch and pressure in the Y-axis direction, which is the up-down direction of the seatback, and to output the Y-axis touch and pressure sensing signals of the seatback;
A fourth sensing unit configured to sense a touch and pressure in a first X-axis direction in the left and right directions of the seatback and output a first X-axis touch and pressure sensing signal of the seatback; And
A fifth sensing unit configured to sense a touch and pressure in a second X-axis direction in the left and right directions of the seatback and output a second X-axis touch and pressure sensing signal of the seatback;
The posture control module
A sensing signal input unit configured to receive and process the X and Y axis touch and sensing signals of the seat cushion, the Y axis, the first X axis and the second X axis touch and sensing signals of the seat back through the seat sensing module;
Analyzing the touch and sensing signals of the seat cushion X and Y axes, the seat back Y axis, the first X axis, and the second X axis, respectively, input from the sensing signal input unit, and seating the seat cushion and the seat back. A posture detector configured to generate posture information of a passenger;
Analyzing touch and sensing signals of the X and Y axes of the seat cushion, the Y and Y axes, and the first and second X axes of the seat cushion, respectively, to calculate center point information of a passenger seated in the seat cushion and the seat back. A center detector; And
A correction value detector for analyzing a balance of the occupant seated on the seat cushion and the seatback using the center point information to calculate a correction value for correcting the attitude of the occupant;
The center detection unit
Detecting both the start point information, the intermediate point information, and the end point information for which the weight is detected for each of the first to fifth sensing units,
The starting point information, the middle point information, and the end point information detected for each of the first to fifth sensing units are analyzed by a preset equation, and the left and right tilt scale values of the occupants seated on the seat cushion and the seat back are analyzed. Yields,
The occupant's left and right tilt scale values (M1) (M2) are obtained by equations (1) and (2).
Formula (1)

Formula (2)

Here, Xn is an intermediate position between the start position where the weight is sensed in the second sensing unit and the position where the weight sensing ends because the weight is not detected in the second sensing unit,
X ″ n is the middle position between the start position where the weight is sensed in the fifth sensing unit and the position where the weight sensing ends because no weight is sensed in the fifth sensing unit,
X'n is an intermediate position between the start position where the weight is detected in the fourth sensing unit and the position where the weight sensing is finished because no weight is detected in the fourth sensing unit. delete delete The method of claim 1,
The posture detection unit
Detecting all of the start point information, the intermediate point information, and the end point information of each of the first to the fifth sensing unit is detected,
A posture control system for a vehicle seat, which analyzes the forward and backward riding attitude and position of a passenger by synthesizing the starting point information, the intermediate point information, and the end point information sensed for each of the first to fifth sensing units to a seat position. . delete The method of claim 1,
The correction value detector
Analyze each of the touch and sensing signals detected for each of the first to fifth sensing units, and calculate the maximum weight, minimum weight, and average weight information of the occupant seated in the seat cushion and the seatback
The weight information detected through the respective touch and sensing signals is sequentially compared with the weight information of any one of the other adjacent sensors to balance the weight of the occupant with the weight of the occupant according to the size of the weight information. Attitude control system for vehicle seat to analyze. The method of claim 1,
The posture control module
A type checking unit for determining a seating posture type of the occupant based on the correction value calculated by the correction value detector and information previously accumulated and stored in a database;
Each control signal for controlling the driving of each cushion, cushion bolster, lumber support, and bolster so that the posture of the occupant can be corrected by comparing and analyzing the type information and the accumulated and stored information previously identified by the type checking unit. A control unit for generating them; And
For each vehicle seat including a drive unit for driving the motor configured in each of the cushion, cushion bolster, lumber support, and each of the cushion, cushion bolster, lumber support, and the bolster in response to each control signal for controlling the driving of the bolster Posture control system. The method of claim 7, wherein
The type checking unit
Center point information, inclination scale value, maximum weight, minimum weight, average weight information, for each of the first to fifth sensing units obtained by analyzing all the touch and sensing signals sensed by the first to fifth sensing units, respectively; And the type information with the highest similarity by comparing the center point information, the tilt scale value, the maximum weight, the minimum weight, the average weight information, and the correction value for the posture correction, respectively, according to a plurality of preset types for the posture correction. A posture control system for detecting a vehicle seat.

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