Self-adaptive control method and system for self-adaptive seat of automobile

Abstract

The invention provides a self-adaptive control method and system for an automobile self-adaptive seat, the system comprises a pressure detection system, a control system, a support system, a seat position control system and a display system, the pressure detection system mainly transmits a human body pressure signal to the control system, and the control system analyzes, calculates and processes the pressure to control the seat position. The signal is sent to a seat position control system, and the seat position control system adjusts a seat backrest, a seat cushion, a seat headrest and a seat leg support to corresponding comfortable positions; meanwhile, the control system sends a driving signal to an electromagnetic valve, an air pump is enabled to inflate and deflate air bags of a left side wing supporting system, a right side wing supporting system and a waist support supporting system, then the air bags comfortably support and wrap the side wings and the waist support of the human body, and in addition, the control system sends a state signal of the self-adaptive seat to an electronic display screen at the same time; and the electronic display screen informs the user of the current self-adaptive seat state condition.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile seats, and in particular relates to an adaptive control method and system for an automobile adaptive seat. Background Art

[0002] With the increasing popularity of automobiles, consumers are becoming more and more demanding. In addition to price factors, people are paying more and more attention to the safety and comfort of automobiles. Adaptive seats are not only the key to improving passenger comfort, but also the key technology for developing high-quality automobile seats and forming competitiveness in the automobile seat market. The invention relates to an adaptive control method and system for automobile adaptive seats.

[0003] The existing car seats are manually adjusted according to the passengers, and the adjustment angles and postures are different, which is not comfortable enough. And they are mainly controlled by button switches, which is not intelligent enough in operation. Such manually adjusted seats usually have limited functions for adjustment and control, and cannot meet the needs of highly intelligent automatic adjustment seats. Summary of the invention

[0004] The present invention provides an adaptive control method and system for an automobile adaptive seat, aiming to solve the problems raised by the background technology.

[0005] The present invention is implemented as follows: an automobile adaptive seat adaptive control system includes a pressure detection system, a control system, a support system, a seat position control system and a display system;

[0006] The pressure detection system includes a backrest matrix pressure sensor and a seat cushion matrix pressure sensor, which are used to detect the matrix pressure values ​​of the backrest, side wings and seat cushion of the human body, and convert the detected matrix pressure values ​​into electrical signals and transmit them to the control system;

[0007] The control system is used to arrange the pressure distribution position point signals of the seat back, side wings and seat cushion to form a pressure cloud map, and is also used for subsequent algorithm processing;

[0008] The support system includes a lumbar support system and a wing support system, and the lumbar support system and the wing support system include an air pump, a solenoid valve, a lumbar support air bag and a wing support air bag, and the solenoid valve controls the air pump to inflate and deflate the lumbar support air bag and the wing support air bag;

[0009] The seat position control system includes a motor adjustment module, a backrest motor, a seat cushion motor, a headrest motor and a leg rest motor, wherein the motor adjustment module is used to drive the backrest motor, the seat cushion motor, the headrest motor and the leg rest motor to adjust the backrest, the seat cushion, the headrest and the leg rest to a specified position;

[0010] The display system includes a display screen and a processing system. When the control system generates a pressure cloud map, it is transmitted to the processing system. The processing system displays the distribution cloud map of the human body backrest, side wings and seat cushion on the display screen.

[0011] Preferably, the backrest matrix pressure sensor and the seat cushion matrix pressure sensor detect initial matrix pressure values ​​of the human backrest, side wings and seat cushion when there are no passengers, and also detect changed matrix pressure values ​​of the human backrest, side wings and seat cushion when there are passengers.

[0012] Preferably, the control system includes a storage device for storing seat back, seat cushion and leg support position information corresponding to the height and body shape of the occupant.

[0013] Preferably, the control system presets and stores a comfortable position of the occupant, wherein the comfortable position includes position information of the seat back, seat cushion, headrest and leg rest corresponding to the height and body shape of the occupant.

[0014] Preferably, the seat position control system adjusts the backrest, seat cushion, headrest and leg rest to specified positions after the occupant has adjusted the seat to a comfortable position in advance, and the control system automatically stores the position information data in the control system data storage device.

[0015] A method for adaptive control of an automobile adaptive seat, which is based on the adaptive control system of an automobile adaptive seat, is specifically as follows:

[0016] Control method of pressure detection system: the pressure detection system transmits the pressure distribution position point signal of the seat back, side wing and seat cushion to the control system. When there is no occupant in the seat, the back matrix pressure sensor and the seat cushion matrix pressure sensor transmit the detected initial matrix pressure value of the human back, side wing and seat cushion to the pressure detection system. Then, when there is an occupant in the seat, the back matrix pressure sensor and the seat cushion matrix pressure sensor transmit the detected changed matrix pressure value of the human back, side wing and seat cushion to the pressure detection system. After receiving the initial matrix pressure value and the changed matrix pressure value, the pressure detection system converts them into initial pressure matrix electrical signal and changed pressure matrix electrical signal and transmits them to the control system.

[0017] Control method of the control system: the control system first arranges the pressure distribution position point signals of the seat back, side wings and seat cushion to form a pressure cloud map, and then performs algorithmic processing on the initial pressure matrix electrical signals of the seat back, side wings and seat cushion sent by the pressure detection system and the changed pressure matrix electrical signals; the control system calculates the pressure value difference between the initial matrix pressure value and the changed matrix pressure value, and then marks the uneven positions of the high and low points of the pressure difference on the pressure cloud map, thereby realizing the inflation and deflation of the uneven pressure positions of the lumbar support air bag and the side wing support air bag, so that the pressure of the human body on the seat is evenly distributed to achieve a comfort effect, and at the same time, the seat position start signal is pressed, and the control system automatically adjusts the backrest, seat cushion, headrest and leg support to the specified position;

[0018] Control method of the support system: the control system calculates the pressure difference between the initial matrix pressure value and the changed matrix pressure value, and then marks the uneven positions of the high and low points of the pressure difference on the pressure cloud map. When the pressure difference between the high and low points is unevenly distributed, the control system drives the solenoid valve in the support system to open, and then the air pump inflates and deflates the lumbar support air bag and the side wing support air bag. At the same time, the pressure detection system continues to detect until the lumbar support and side wing pressure of the human body on the seat are evenly distributed, then the solenoid valve is closed and the air pump stops working;

[0019] Control method of the seat position control system: When the passenger sits on the seat, he manually touches the seat position switch on the display screen to trigger the seat position start signal. The display system software transmits the seat position start signal to the control system through CAN communication. The seat control system outputs the seat position motor drive signal (PWN modulation signal) to the motor adjustment module. The motor adjustment module adjusts the backrest motor, seat cushion motor, headrest motor and leg support motor to the specified position.

[0020] Control method of the display system: When the control system calculates the pressure cloud map, it sends it to the processing system, and the processing system displays the distribution cloud map of the human body backrest, side wings and seat cushion on the display screen. At the same time, when the lumbar support system and side wing support system are adjusted to the specified position, they will be displayed on the display screen. In addition, when the occupant sits on the seat for the first time, the backrest, seat cushion, headrest and leg rest are adjusted to the most specified position through the display screen and saved. The data saved at this time is automatically stored in the memory of the control system so that the seat can automatically adjust the backrest, seat cushion, headrest and leg rest to the specified position next time.

[0021] Preferably, the control system automatically adjusts the backrest, seat cushion, headrest and leg support to the specified position by:

[0022] After the occupant sits on the seat, he presses the adjustment buttons for the seat back, seat cushion, headrest and leg rest on the display screen. At this time, the seat back, seat cushion and leg rest reach the specified position and are saved. At this time, the control system's memory stores the seat back, seat cushion, headrest and leg rest position information corresponding to the occupant's height and body shape. When the occupant sits next time, he presses the seat position start signal, and the seat controller outputs a drive signal to adjust the seat back, seat cushion, headrest and leg rest to the specified position set in advance.

[0023] Preferably, the method by which the motor adjustment module in the seat position control system adjusts the backrest motor, the seat cushion motor, the headrest motor and the leg support motor to the specified position is:

[0024] The designated position is set by the occupant beforehand by adjusting the seat to the position, and the control system automatically stores the position information data in the control system data storage.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention patent discloses an adaptive control method and system for an adaptive seat, including a pressure detection system, a control system, a support system, a seat position control system and a display system. The pressure detection system mainly transmits the human body pressure signal to the control system. The control system performs pressure analysis and calculation processing and gives the signal to the seat position control system. The seat position control system adjusts the seat back, seat cushion, seat headrest and seat leg support to corresponding comfortable positions; at the same time, the control system gives a driving signal to the solenoid valve to enable the air pump to inflate and deflate the air bags of the left and right wing support systems and the lumbar support system, thereby achieving the air bags to comfortably support and wrap the human body's flanks and lumbar support. In addition, the control system also sends the status signal of the adaptive seat to the electronic display screen, and the electronic display screen informs the user of the current status of the adaptive seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a control block diagram of the adaptive control system of the present invention;

[0028] Figure 2 It is a logic block diagram of the adaptive control system of the present invention. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0031] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] See also Figure 1 to Figure 2 , the present invention provides a technical solution: an adaptive control method and system for an automobile adaptive seat, the adaptive seat adaptive control system includes a pressure detection system, a control system, a support system (including a lumbar support system and a wing support system), a seat position control system and a display system;

[0035] Control method of pressure detection system: The pressure detection system mainly includes a backrest matrix pressure sensor and a seat cushion matrix pressure sensor; first, the pressure detection system transmits the pressure distribution position point signal to the control system, when there is no occupant in the seat, the backrest matrix pressure sensor and the seat cushion matrix pressure sensor will transmit the detected initial matrix pressure values ​​of the human backrest, side wings and seat cushion to the pressure detection system; when there is an occupant in the seat, the backrest matrix pressure sensor and the seat cushion matrix pressure sensor will transmit the detected changed matrix pressure values ​​of the human backrest, side wings and seat cushion to the pressure detection system, the pressure detection system receives the initial pressure value and the changed pressure value, and converts them into initial pressure electrical signals and changed pressure electrical signals and transmits them to the control system.

[0036] Control method of the control system: The control system first arranges the pressure distribution position point signals to form a pressure cloud map, and then performs algorithmic processing on the initial pressure electrical signals of the backrest, side wings and seat cushion and the changed pressure electrical signals of the backrest, side wings and seat cushion sent by the pressure detection system (specifically by calculating the initial and changed pressure difference, and then marking the uneven positions of the high and low points of the pressure difference on the pressure cloud map), thereby inflating and deflating the uneven pressure positions of the side wings and lumbar support air bags, so that the pressure of the human body on the seat is evenly distributed, achieving a comfort effect. At the same time, press the seat position start signal, and the control system automatically adjusts the backrest, seat cushion, headrest and leg support to the corresponding comfortable position (working principle: after the occupant sits on the seat, press the backrest, seat cushion, headrest and leg support adjustment buttons on the seat display to adjust the backrest, seat cushion, headrest and leg support to the most comfortable position and save it. At this time, the control system's memory stores the seat backrest, seat cushion, headrest and leg support position information corresponding to the occupant's height and body shape. The next time the occupant sits, press the seat position start signal, and the seat controller outputs a drive signal to adjust the seat backrest, seat cushion, headrest and leg support to the corresponding comfortable position set in advance).

[0037] Control method of support system (including lumbar support system and wing support system): the support system mainly includes an air pump, a lumbar support air bag and a wing support air bag, wherein the lumbar support air bag includes upper, middle and lower lumbar support air bags, and the wing support air bags include left and right wing support air bags; when the occupant sits on the seat, the pressure detection system detects the occupant matrix pressure value, and feeds back the pressure matrix electrical signal to the control system, the control system performs algorithm analysis, when the pressure difference between the high and low pressure points is unevenly distributed, the control system drives the solenoid valve in the support system to open, and the air pump inflates and deflates the lumbar support air bag and the wing support air bag, and at the same time the pressure detection system continues to detect until the lumbar support and wing pressure of the human body on the seat are evenly distributed, then the solenoid valve is closed and the air pump stops working.

[0038] Control method of seat position control system: The seat position control system includes a motor adjustment module, a backrest motor, a seat cushion motor, a headrest motor and a leg support motor. When the occupant sits on the seat, he manually touches the seat position switch on the display screen to trigger the seat position start signal. The display system transmits the triggered seat position start signal to the control system through CAN communication. The seat control system outputs a seat position motor drive signal (PWN modulation signal) to the motor adjustment module (integrated motor H-bridge module, which controls the start and forward and reverse rotation by driving the H-bridge on and off through the PWN modulation signal). The motor adjustment module adjusts the backrest motor, seat cushion motor, headrest motor and leg support motor to the corresponding positions (the specific position information is determined by the occupant in advance when the seat is adjusted to a comfortable position, and the control system automatically stores the position information data in the control system data storage device).

[0039] The display system control method is as follows: the display system includes a display screen and a processing system; when the control system calculates the pressure distribution cloud map and sends it to the processing system, the processing system displays the human body backrest and side wing distribution cloud map on the display screen, and at the same time, when the lumbar support system and the side wing support system are adjusted to a comfortable position, they will be displayed on the display screen. In addition, when the occupant sits on the seat for the first time, the backrest, seat cushion, headrest and leg support are adjusted to the most comfortable position through the display screen and saved. At this time, the saved data is automatically stored in the controller's memory so that the seat can automatically adjust the backrest, seat cushion, headrest and leg support to the most comfortable position next time.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adaptive control system for an automobile adaptive seat, characterized in that: Includes pressure detection system, control system, support system, seat position control system and display system; The pressure detection system includes a backrest matrix pressure sensor and a seat cushion matrix pressure sensor, which are used to detect the matrix pressure values ​​of the backrest, side wings and seat cushion of the human body, and convert the detected matrix pressure values ​​into electrical signals and transmit them to the control system; The control system is used to arrange the pressure distribution position point signals of the seat back, side wings and seat cushion to form a pressure cloud map, and is also used for subsequent algorithm processing; The support system includes a lumbar support system and a wing support system, and the lumbar support system and the wing support system include an air pump, a solenoid valve, a lumbar support air bag and a wing support air bag, and the solenoid valve controls the air pump to inflate and deflate the lumbar support air bag and the wing support air bag; The seat position control system includes a motor adjustment module, a backrest motor, a seat cushion motor, a headrest motor and a leg rest motor, wherein the motor adjustment module is used to drive the backrest motor, the seat cushion motor, the headrest motor and the leg rest motor to adjust the backrest, the seat cushion, the headrest and the leg rest to a specified position; The display system includes a display screen and a processing system. When the control system generates a pressure cloud map, it is transmitted to the processing system, and the processing system displays the distribution cloud map of the human body backrest and side wings on the display screen.

2. The vehicle adaptive seat adaptive control system according to claim 1, characterized in that: The backrest matrix pressure sensor and the seat cushion matrix pressure sensor detect the initial matrix pressure values ​​of the human backrest, side wings and seat cushion when there are no passengers, and also detect the changed matrix pressure values ​​of the human backrest, side wings and seat cushion when there are passengers.

3. The vehicle adaptive seat adaptive control system according to claim 1, characterized in that: The control system comprises a storage device for storing position information of a seat back, a seat cushion, a headrest and a leg support corresponding to the height and body shape of an occupant.

4. The vehicle adaptive seat adaptive control system according to claim 1, characterized in that: The control system presets and stores a comfortable position of the occupant, wherein the comfortable position includes position information of a seat back, a seat cushion, a headrest and a leg rest corresponding to the height and body shape of the occupant.

5. The vehicle adaptive seat adaptive control system according to claim 1, characterized in that: The seat position control system adjusts the backrest, seat cushion, headrest and leg rest to a specified position. The occupant adjusts the seat to a comfortable position in advance, and the control system automatically stores the position information data in the control system data storage.

6. A method for controlling an adaptive seat of an automobile, characterized in that: This method is based on the automotive adaptive seat adaptive control system as claimed in claim 1, and is specifically as follows: Control method of pressure detection system: the pressure detection system transmits the pressure distribution position point signal of the seat back and the seat cushion to the control system. When there is no occupant in the seat, the back matrix pressure sensor and the seat cushion matrix pressure sensor transmit the detected initial matrix pressure value of the human back, side wing and seat cushion to the pressure detection system. Then, when there is an occupant in the seat, the back matrix pressure sensor and the seat cushion matrix pressure sensor transmit the detected changed matrix pressure value of the human back, side wing and seat cushion to the pressure detection system. After receiving the initial matrix pressure value and the changed matrix pressure value, the pressure detection system converts them into initial pressure matrix electrical signal and changed pressure matrix electrical signal and transmits them to the control system. Control method of the control system: the control system first arranges the pressure distribution position point signals of the seat back, side wings and seat cushion to form a pressure cloud map, and then performs algorithmic processing on the initial pressure matrix electrical signals of the seat back, side wings and seat cushion and the changed pressure matrix electrical signals of the seat back, side wings and seat cushion sent by the pressure detection system; the control system calculates the pressure value difference between the initial matrix pressure value and the changed matrix pressure value, and then marks the uneven positions of the high and low points of the pressure difference on the pressure cloud map, thereby realizing the inflation and deflation of the uneven pressure positions of the lumbar support air bag and the side wing support air bag, so that the pressure of the human body on the seat is evenly distributed to achieve a comfort effect, and at the same time, the seat position start signal is pressed, and the control system automatically adjusts the backrest, seat cushion, headrest and leg support to the specified position; Control method of the support system: the control system calculates the pressure difference between the initial matrix pressure value and the changed matrix pressure value, and then marks the uneven positions of the high and low points of the pressure difference on the pressure cloud map. When the pressure difference between the high and low points is unevenly distributed, the control system drives the solenoid valve in the support system to open, and then the air pump inflates and deflates the lumbar support air bag and the side wing support air bag. At the same time, the pressure detection system continues to detect until the lumbar support and side wing pressure of the human body on the seat are evenly distributed, then the solenoid valve is closed and the air pump stops working; Control method of the seat position control system: When the occupant sits on the seat, he manually touches the seat position switch on the display screen to trigger the seat position start signal, and the display system software transmits the trigger seat position start signal to the control system through CAN communication. The seat control system outputs the seat position motor drive signal (PWN modulation signal) to the motor adjustment module, and the motor adjustment module adjusts the backrest motor, seat cushion motor, headrest motor, headrest motor and leg support motor to the specified position; Control method of display system: when the control system calculates the pressure cloud map, it sends it to the processing system, and the processing system displays the pressure cloud map of the human body backrest, side wings and seat cushion on the display screen. At the same time, when the lumbar support system and side wing support system are adjusted to the specified position, they will be displayed on the display screen. In addition, when the occupant sits on the seat for the first time, the backrest, seat cushion, headrest and leg rest are adjusted to the most specified position through the display screen and saved. The data saved at this time is automatically stored in the memory of the control system so that the seat can automatically adjust the backrest, seat cushion, headrest and leg rest to the specified position next time.

7. The method for controlling an adaptive seat of an automobile according to claim 6, characterized in that: The method for the control system to automatically adjust the backrest, seat cushion, headrest and leg support to the specified position is: After the occupant sits on the seat, he presses the backrest, seat cushion and leg rest adjustment buttons on the display screen. At this time, the backrest, seat cushion and leg rest reach the specified position and are saved. At this time, the control system's memory stores the seat backrest, seat cushion and leg rest position information corresponding to the occupant's height and body shape. When the occupant sits next time, he presses the seat position start signal, and the seat controller outputs a drive signal to adjust the seat backrest, seat cushion, headrest and leg rest to the set specified position.

8. The method for controlling an adaptive seat of an automobile according to claim 6, characterized in that: The method for the motor adjustment module in the seat position control system to adjust the backrest motor, the seat cushion motor, the headrest motor and the leg support motor to the specified position is: The designated position is set by the occupant beforehand by adjusting the seat to the position, and the control system automatically stores the position information data in the control system data storage.

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