Automobile zero-gravity seat antiskid system and method based on air bag compensation

Abstract

The invention discloses an automobile zero-gravity seat antiskid system and method based on air bag compensation. The system comprises a first air bag, a second air bag, a third air bag, an air pump and a controller. The first air bag and the second air bag are installed at the front end and the rear end of a seat cushion respectively, and the third air bag is installed on the lower portion of a seat backrest. The first air bag, the second air bag and the third air bag communicate with the air pump. The first air bag is configured to be capable of supporting the middle part of the thigh of a human body in an expanded state; the second air bag is configured to be capable of supporting the upper thigh and the ischium of the human body in an expanded state; the third air bag is configured to provide support for the waist of the human body in an expanded state; and the controller is used for controlling the air pump to inflate the first air bag, the second air bag and the third air bag when the seat is adjusted from the driving posture to the zero-weight posture. When the seat is converted from a driving state to a zero-gravity state, the sliding of the hip and the waist of a human body can be effectively inhibited, and the comfort of passengers is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to an anti-skid system and method for an automobile zero-gravity seat based on airbag compensation. Background Art

[0002] A car seat includes a backrest and a seat cushion. The backrest can rotate relative to the seat cushion, allowing it to switch between a driving posture and a zero-gravity posture. When the seat switches from a driving posture to a zero-gravity posture, the rotation center of the occupant on the seat and the seat back are inconsistent, causing friction and sliding of the occupant.

[0003] Currently, lumbar supports are provided on seats to support the occupant's waist and alleviate the discomfort of the human body.

[0004] However, the current method can only partially alleviate the discomfort caused by the sliding of the waist, and cannot inhibit the relative sliding between the human buttocks and the seat cushion, that is, it cannot alleviate the discomfort caused by the relative sliding between the human buttocks and the seat cushion. Summary of the Invention

[0005] To address the above issues, the present invention provides an airbag-compensated anti-slip system and method for zero-gravity seats in vehicles. This system effectively prevents slippage of the hips and waist during the transition from a driving state to a zero-gravity state, improving passenger comfort. The technical solution is as follows: In a first aspect, an embodiment of the present invention provides an automobile zero-gravity seat anti-slip system based on airbag compensation, comprising: a first airbag, a second airbag, a third airbag, an air pump, and a controller; The first and second airbags are installed at the front and rear ends of the seat cushion respectively, and the third airbag is installed at the lower part of the seat backrest; the first, second and third airbags are all connected to the air pump; The first airbag is configured to support the middle thigh of a human body in an inflated state; The second airbag is configured to support the upper thigh and ischium of the human body in an inflated state; The third airbag is configured to provide support for the human waist in an inflated state; The controller is used for controlling the air pump to inflate the first airbag, the second airbag and the third airbag when the seat is adjusted from the driving posture to the zero-weight posture.

[0006] In one implementation of the embodiment of the present invention, the controller is used to control the air pump to stop inflating the first airbag, the second airbag and the third airbag when the zero-gravity posture of the seat is turned on.

[0007] In one implementation of the embodiment of the present invention, it further includes an angle sensor and a pressure acquisition device; A pressure acquisition device for acquiring pressure distribution information on the seat cushion and pressure information on the lumbar region of the seat; Angle sensor, used to obtain the tilt angle of the seat back; The controller is used to determine the relationship curves of the first airbag pressure, the second airbag pressure, and the third airbag pressure and the tilt angle of the seat back based on the pressure distribution information on the seat cushion in the driving posture and the pressure information of the seat waist; when the seat is adjusted from the driving posture to the zero-weight posture, the first airbag pressure, the second airbag pressure, and the third airbag pressure corresponding to different tilt angles are determined based on the tilt angle of the seat back and the determined relationship curves of the first airbag pressure, the second airbag pressure, and the third airbag pressure and the tilt angle of the seat back; and the air intake speed of the first airbag, the second airbag, and the third airbag is controlled based on the first airbag pressure, the second airbag pressure, and the third airbag pressure.

[0008] In one implementation of the embodiment of the present invention, the controller is further configured to determine that the seat has reached a zero-gravity posture when the tilt angle of the seat back is greater than a set angle threshold.

[0009] In one implementation of the embodiment of the present invention, the third airbag is installed between the seat back cover and the back foam; the first airbag and the second airbag are both installed between the seat cushion cover and the seat cushion foam.

[0010] In one implementation of the embodiment of the present invention, foaming grooves are provided at both the front and rear ends of the seat cushion foam; and the first airbag and the second airbag are installed in the two foaming grooves respectively.

[0011] In an implementation of the embodiment of the present invention, the depth of the foaming groove is greater than the thickness of the airbag in the groove.

[0012] In one implementation of the embodiment of the present invention, the first airbag, the second airbag, and the third airbag are all connected to the control valve through separate air paths, and the control valve is also connected to the air pump; The controller is also used to control the control valve to control the air intake speed of the first airbag, the second airbag and the third airbag.

[0013] In one implementation of the embodiment of the present invention, the air pump and the control valve are both installed on the seat back frame.

[0014] In a second aspect, an embodiment of the present invention provides an anti-slip method for a zero-gravity car seat based on airbag compensation, comprising: When the seat is adjusted from the driving posture to the zero-weight posture, the air pump is controlled to inflate the first airbag, the second airbag and the third airbag; The first airbag supports the middle part of the human thigh; the second airbag supports the upper part of the human thigh and ischium to prevent the human H point from slipping; The third airbag provides support for the waist of the human body to prevent the back from slipping.

[0015] The technical solution provided by the embodiment of the present invention has the following beneficial effects: The present invention proposes an anti-slip system and method for a zero-gravity seat in an automobile based on airbag compensation. The system provides a third airbag at the lower part of the seat back, and provides a first airbag and a second airbag at the front and rear ends of the seat cushion respectively. The first airbag, the second airbag and the third airbag are all connected to an air pump. When the seat is adjusted from a driving posture to a zero-gravity posture, the controller controls the air pump to inflate the first airbag, the second airbag and the third airbag. The first airbag expands to support the middle part of the human thigh, and the second airbag expands to support the upper part of the human thigh and ischium. The first airbag and the second airbag cooperate to prevent the human buttocks from sliding. The third airbag expands to support the human waist and prevent the human back from sliding, thereby improving the overall comfort of the occupants. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings in the specification, which constitute a part of this application, are used to provide further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute improper limitations on this application.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an airbag-compensated vehicle zero-gravity seat anti-slip system provided in an embodiment of the present invention; Figure 2 A schematic diagram of the installation structure of the air pump and the electric control valve provided in an embodiment of the present invention; Figure 3 A reference diagram of a zero-gravity sitting posture target provided by an embodiment of the present invention; Figure 4 A comparison chart of the driving sitting posture and the zero-gravity sitting posture provided in an embodiment of the present invention.

[0018] Among them: 1. first airbag, 2. second airbag, 3. third airbag, 4. electric control valve, 5. air pump. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the following detailed description is illustrative and is intended to provide an explanation of one embodiment of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs.

[0021] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0022] In the present invention, terms such as "fixed connection," "connected," and "connection" should be interpreted broadly to mean a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediary. Relevant researchers or technicians in this field may determine the specific meanings of these terms in the present invention based on specific circumstances, and they should not be construed as limitations of the present invention.

[0023] First, an application scenario of an automobile zero-gravity seat anti-slip system based on airbag compensation proposed in an embodiment of the present invention is described.

[0024] An embodiment of the present invention proposes an anti-slip system for a zero-gravity seat of an automobile based on airbag compensation, which is applied to an automobile seat that has a zero-gravity state and can switch between a driving state and a zero-gravity state; Figure 1 As shown, the zero gravity state refers to the lying state, and the driving state refers to the normal sitting state, as shown in Figure 4 As shown, when the seat switches from the driving posture to the zero-gravity posture, the rotation center of the occupant on the seat and the seat back are offset. The misalignment of the rotation center of the occupant and the seat back causes frictional sliding of the occupant.

[0025] Traditional methods alleviate human discomfort by improving fabric materials, foam materials or mechanical seat anti-dive devices. However, such measures are very limited in alleviating the discomfort. Supporting the occupant's waist by providing a lumbar support on the seat can only partially alleviate the discomfort caused by lumbar sliding, and cannot dynamically compensate for sliding displacement.

[0026] In actual use, existing zero-gravity seats experience friction and sliding between the head, back, and head during the entire adjustment process, as the rotation center of the human torso is inconsistent with the rotation center of the backrest. This significantly affects the user experience during the adjustment process. When the seat switches from the driving position to the zero-gravity position, the following defects exist: The displacement of the torso and the backrest changes the ideal position for the driver's driving posture, altering the contact point between the backrest and the shoulders. This shift in contact point alters both the support and the wrapping area of ​​the backrest. This shift makes it difficult to restore the ideal driving position simply by adjusting the body's position and posture.

[0027] Since the head is at the greatest distance from the center of rotation, the offset distance between the head and the headrest is also the most obvious. The head will move down a certain distance relative to the headrest, and most passengers will feel obvious lack of support for their heads.

[0028] In addition, when the seat switches from a driving posture to a zero-gravity posture, the contact position between the back and the backrest is constantly changing, and sliding friction will occur between the human body and the backrest. If the adjustment speed is too fast, the back will feel obvious discomfort.

[0029] Finally, when the seat switches from the driving position to the zero-gravity position, the angle between the thigh and torso changes, and the pressure between the buttocks and the seat cushion changes, causing the buttocks to slide forward. This forward sliding tendency increases the shear force on the ischial spine, which can increase the discomfort of the human body.

[0030] However, none of the current methods can alleviate the discomfort caused by the relative sliding between the human buttocks and the seat cushion.

[0031] Based on this application scenario, an embodiment of the present invention proposes an automobile zero-gravity seat anti-slip system based on airbag compensation.

[0032] Figure 1 3D structural diagram of an automobile zero-gravity seat anti-slip system based on airbag compensation provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the installation structure of the air pump and the electric control valve provided in the embodiment of the present invention; Figure 1 and Figure 2 , an embodiment of the present invention provides an automobile zero-gravity seat anti-skid system based on airbag compensation, comprising: a first airbag 1, a second airbag 2, a third airbag 3, an air pump 5 and a controller; The first airbag 1 and the second airbag 2 are respectively installed at the front and rear ends of the seat cushion, and the third airbag 3 is installed at the lower part of the seat back; the first airbag, the second airbag and the third airbag are all connected to the air pump 5; The first airbag 1 is configured to support the middle thigh of a human body in an inflated state; The second airbag 2 is configured to support the upper thigh and ischium of the human body in an inflated state; The third airbag 3 is configured to provide support for the human waist in an inflated state; The controller is used to control the air pump 5 to inflate the first airbag 1, the second airbag 2 and the third airbag 3 when the seat is adjusted from the driving posture to the zero-weight posture.

[0033] In an embodiment of the present invention, a third airbag is provided at the lower portion of the seat back, and a first airbag and a second airbag are provided at the front and rear ends of the seat cushion, respectively. The first, second, and third airbags are all connected to an air pump. When the seat is adjusted from a driving posture to a zero-weight posture, a controller controls the air pump to inflate the first, second, and third airbags. The first airbag expands to support the middle thigh of the human body, and the second airbag expands to support the upper thigh and ischium of the human body. The first and second airbags cooperate to prevent the human buttocks from sliding. The third airbag expands to support the human waist and prevent the back from sliding, thereby improving overall occupant comfort. This solves the problem of friction and sliding caused by the deviation between the human body and the rotation center of the seat back when the seat is adjusted from a driving posture to a zero-weight posture.

[0034] The "human waist" involved in the embodiment of the present invention not only includes the waist area, but can also be further extended to include a part of the hip area, wherein the waist area is generally the part below the ribs and above the pelvis of the human body.

[0035] In one implementation of the embodiment of the present invention, the third airbag is installed between the seat back cover and the back foam; the first airbag and the second airbag are both installed between the seat cushion cover and the seat cushion foam.

[0036] The first airbag is designed as a long cavity, arranged horizontally along the middle of the front end of the seat cushion, with a width controlled between 200mm and 300mm. It is made of double-layer TPU composite fabric thermally synthesized, and a honeycomb reinforcement structure is set inside to improve creep resistance.

[0037] The second airbag is designed as a rectangular cavity, with the upper surface fitting the curved surface of the seat cushion foam. The interior is also equipped with a honeycomb reinforcement structure to improve creep resistance. The bottom is provided with a wavy pleated area to adapt to the pressure deformation of different body shapes. The volume is about 3 to 5 times that of the first airbag.

[0038] The third airbag is designed as a rectangular cavity, with the upper surface fitting the curved surface of the backrest foam. A honeycomb reinforcement structure is also set inside to improve the anti-creep performance, and a wavy pleated area is set at the bottom to adapt to the pressure deformation of different body shapes.

[0039] In one implementation of the embodiment of the present invention, foaming grooves are provided at both the front and rear ends of the seat cushion foam; and the first airbag and the second airbag are installed in the two foaming grooves respectively.

[0040] The first airbag and the second airbag are both connected to a separate mounting base, and a fixing ring is provided in the two foaming grooves; the fixing ring can be made of nylon, etc., and is connected to the fixing ring through the mounting base, and the first airbag and the second airbag are installed in the two foaming grooves respectively.

[0041] In one implementation of this embodiment, the depth of the foam groove is greater than the thickness of the airbag within it, and a retaining flange is provided at the edge of the foam groove to prevent displacement of the first and second airbags during seat posture adjustment. If desired, the foam groove depth can be set to 1.1 times the airbag thickness, with a 5mm high retaining flange at the edge.

[0042] Among them, the first airbag is mainly used to support the middle part of the human thigh during the seat posture conversion process, maintain the stability of the pressure value between the human buttocks and the seat cushion, and thus eliminate the tendency of the ischium to move forward; the second airbag is mainly used to support the upper thigh and ischium during the seat posture conversion process, compensate for the displacement difference caused by the offset of the rotation center of the human body and the backrest, and cooperate with the first airbag to prevent the human buttocks from sliding.

[0043] In one implementation of the embodiment of the present invention, the first airbag, the second airbag, and the third airbag are all connected to the control valve 4 through separate air paths, and the control valve 4 is also connected to the air pump; The controller is also used to control the control valve 4 to control the air intake speed of the first airbag, the second airbag and the third airbag.

[0044] Control valve 4 integrates a solenoid proportional valve and an air pressure distribution module. It connects to the air pump 5 via the main intake pipe, an 8mm Φ reinforced silicone tube extending from the pump outlet to the control valve behind the backrest suspension spring. Control valve 4 connects to the first, second, and third airbags via an outlet pipe. This outlet pipe is divided into four independent branches: two connecting to the third airbag, and two connecting to the first and second airbags, respectively, after passing through the gap in the suspension spring. All airbags are coated with a wear-resistant braided layer, and key bends are reinforced with stainless steel spiral sheaths. Quick-connect fittings and silicone-based sealing grease are used at the pipe joints to ensure airtightness within operating conditions of -40°C to 120°C.

[0045] In one implementation of the present invention, the air pump and control valve are both mounted on the seat back frame. The air pump is mounted on the side panels of the back frame via an aluminum alloy bracket, and a silicone shock-absorbing pad is placed between the aluminum alloy bracket and the back frame to isolate vibration noise.

[0046] The control valve is installed in the lower middle part of the seat back frame, and a silicone shock-absorbing pad is set between the control valve and the seat back frame to isolate vibration noise.

[0047] In terms of the seat frame structure, an airbag mounting platform is added to the front of the seat basin frame. The platform surface is machined with matrix positioning holes, forming an interference fit with the positioning column at the bottom of the airbag. The suspension spring support beam of the backrest frame is reinforced and stamped from 3mm thick high-strength steel plate. A pipeline channel is opened in the middle and a plastic guide groove is embedded to ensure that the air pipe maintains smooth bending when the seat posture changes. The seat cushion foam adopts a zoned density design, and the density of the airbag installation area is controlled at 45kg / m 3 To provide necessary support, the density of the surrounding transition area is gradually reduced to 30kg / m 3 To ensure riding comfort, a network of 0.5mm deep air guide grooves, 2mm wide and 10mm apart, are molded into the foam surface to guide the gas diffusion path during airbag inflation.

[0048] In one implementation of the embodiment of the present invention, it further includes an angle sensor and a pressure acquisition device; A pressure acquisition device for acquiring pressure distribution information on the seat cushion and pressure information on the lumbar region of the seat; Angle sensor, used to obtain the tilt angle of the seat back; The controller is used to determine the relationship curves of the first airbag pressure, the second airbag pressure, and the third airbag pressure and the tilt angle of the seat back based on the pressure distribution information on the seat cushion in the driving posture and the pressure information of the seat waist; when the seat is adjusted from the driving posture to the zero-weight posture, the first airbag pressure, the second airbag pressure, and the third airbag pressure corresponding to different tilt angles are determined based on the tilt angle of the seat back and the determined relationship curves of the first airbag pressure, the second airbag pressure, and the third airbag pressure and the tilt angle of the seat back; and the air intake speed of the first airbag, the second airbag, and the third airbag is controlled based on the first airbag pressure, the second airbag pressure, and the third airbag pressure.

[0049] When driving, the pressure distribution information on the seat cushion and the pressure information on the seat waist obtained by the pressure acquisition device can reflect the weight of the human body to a certain extent; when driving, the pressure distribution information on the seat cushion and the pressure information on the seat waist obtained by the pressure acquisition device are used to select the relationship curve of the first airbag pressure, the second airbag pressure and the third airbag pressure and the inclination angle of the seat back that are adapted to the weight of the human body from the database.

[0050] The database stores relationship curves between the first airbag pressure, the second airbag pressure, and the third airbag pressure and the seat back tilt angle that are adapted to various human body weights; each relationship curve is obtained by fitting the first airbag pressure, the second airbag pressure, and the third airbag pressure when the human body is in the most comfortable state at different seat back tilt angles with the same human weight.

[0051] During the process of adjusting the seat from a driving posture to a zero-weight posture, the first airbag pressure, the second airbag pressure and the second airbag pressure corresponding to the inclination angle can be directly determined according to the inclination angle of the seat back. On this basis, by controlling the air intake speed of the first airbag, the second airbag and the third airbag and the rotation angle of the seat back, when the seat back reaches a rotation angle, the pressures of the first airbag, the second airbag and the third airbag reach the determined first airbag pressure, the second airbag pressure and the second airbag pressure corresponding to the rotation angle, so that the human body is always in the most comfortable state during the process of adjusting the seat from a driving posture to a zero-weight posture.

[0052] In an implementation of the embodiment of the present invention, the controller performs PID control on the air intake speeds of the first airbag, the second airbag, and the third airbag.

[0053] In one implementation of an embodiment of the present invention, the controller is also used to determine that the seat is adjusted from a driving posture to a zero-gravity posture when the tilt angle of the seat back continues to increase; and to determine that the seat has reached a zero-gravity posture when the tilt angle of the seat back is greater than a set angle threshold.

[0054] In one implementation of the embodiment of the present invention, the controller is used to control the air pump to stop inflating the first airbag, the second airbag and the third airbag when the zero-gravity posture of the seat is turned on.

[0055] An embodiment of the present invention provides an airbag-compensated anti-slip system for zero-gravity seats in automobiles. When the seat's zero-gravity posture is activated, the air intake speeds of the first, second, and third airbags are adjusted according to the backrest's rotation angle to ensure that the first, second, and third airbags reach the desired pressure when the backrest reaches the desired rotation angle, preventing the body's hips and waist from sliding and maintaining the most comfortable state at all times. When it is necessary to switch back to the driving posture, the system initiates a reverse pressure relief sequence, releasing the gas within the airbags in layers according to a specific time sequence. This, combined with the synchronous reset action of the seat frame, ensures a close fit between the body and the seat surface, effectively eliminating the sliding friction that is common during traditional seat posture switching. This coordinated mechanism ensures both ride comfort and safety during posture transitions.

[0056] The embodiment of the present invention further provides an anti-slip method for a zero-gravity seat of an automobile based on airbag compensation, comprising: When the seat is adjusted from the driving posture to the zero-weight posture, the air pump is controlled to inflate the first airbag, the second airbag and the third airbag; The first airbag supports the middle part of the human thigh; the second airbag supports the upper part of the human thigh and ischium to prevent the human H point from slipping; The third airbag provides support for the waist of the human body to prevent the back from slipping.

[0057] It should be noted that the above-mentioned embodiment provides an anti-slip method embodiment of a zero-gravity seat for automobile based on airbag compensation and an anti-slip system for a zero-gravity seat for automobile based on airbag compensation, which belong to the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0058] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. An automobile zero-gravity seat anti-slip system based on airbag compensation, characterized in that: include: a first airbag, a second airbag, a third airbag, an air pump, and a controller; The first and second airbags are installed at the front and rear ends of the seat cushion respectively, and the third airbag is installed at the lower part of the seat backrest; the first, second and third airbags are all connected to the air pump; The first airbag is configured to support the middle thigh of a human body in an inflated state; The second airbag is configured to support the upper thigh and ischium of the human body in an inflated state; The third airbag is configured to provide support for the human waist in an inflated state; The controller is used for controlling the air pump to inflate the first airbag, the second airbag and the third airbag when the seat is adjusted from the driving posture to the zero-weight posture.

2. The vehicle zero-gravity seat anti-slip system based on airbag compensation according to claim 1, characterized in that: Also included are an angle sensor and a pressure acquisition device; A pressure acquisition device for acquiring pressure distribution information on the seat cushion and pressure information on the lumbar region of the seat; Angle sensor, used to obtain the tilt angle of the seat back; The controller is used to determine the relationship curves of the first airbag pressure, the second airbag pressure, and the third airbag pressure and the tilt angle of the seat back based on the pressure distribution information on the seat cushion in the driving posture and the pressure information of the seat waist; when the seat is adjusted from the driving posture to the zero-weight posture, the first airbag pressure, the second airbag pressure, and the third airbag pressure corresponding to different tilt angles are determined based on the tilt angle of the seat back and the determined relationship curves of the first airbag pressure, the second airbag pressure, and the third airbag pressure and the tilt angle of the seat back; and the air intake speed of the first airbag, the second airbag, and the third airbag is controlled based on the first airbag pressure, the second airbag pressure, and the third airbag pressure.

3. The vehicle zero-gravity seat anti-slip system based on airbag compensation as claimed in claim 2, characterized in that: The controller is further configured to determine that the seat has reached a zero-gravity posture when the tilt angle of the seat back is greater than a set angle threshold.

4. The vehicle zero-gravity seat anti-slip system based on airbag compensation as claimed in claim 1, characterized in that: The controller is used to control the air pump to stop inflating the first airbag, the second airbag and the third airbag when the zero-gravity posture of the seat is opened.

5. The vehicle zero-gravity seat anti-slip system based on airbag compensation as claimed in claim 1, characterized in that: The third airbag is installed between the seat back cover and the back foam; the first airbag and the second airbag are both installed between the seat cushion cover and the seat cushion foam.

6. The vehicle zero-gravity seat anti-slip system based on airbag compensation as claimed in claim 5, characterized in that: Foaming grooves are provided at the front and rear ends of the seat cushion foam; the first airbag and the second airbag are installed in the two foaming grooves correspondingly.

7. The vehicle zero-gravity seat anti-slip system based on airbag compensation as claimed in claim 6, characterized in that: The depth of the foaming groove is greater than the thickness of the airbag in the groove.

8. The vehicle zero-gravity seat anti-slip system based on airbag compensation as claimed in claim 1, characterized in that: The first airbag, the second airbag and the third airbag are all connected to the control valve through separate air paths, and the control valve is also connected to the air pump; The controller is also used to control the control valve to control the air intake speed of the first airbag, the second airbag and the third airbag.

9. The vehicle zero-gravity seat anti-slip system based on airbag compensation as claimed in claim 1, characterized in that: The air pump and control valve are both mounted on the seat back frame.

10. A method for preventing slipping of a zero-gravity car seat based on airbag compensation, characterized in that: include: When the seat is adjusted from the driving posture to the zero-weight posture, the air pump is controlled to inflate the first airbag, the second airbag and the third airbag; The first airbag supports the middle part of the human thigh; the second airbag supports the upper part of the human thigh and ischium to prevent the human H point from slipping; The third airbag provides support for the waist of the human body to prevent the back from slipping.

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