Automobile seat fatigue relieving system and method and automobile seat

Abstract

The invention discloses an automobile seat fatigue relieving system and an automobile seat. In the system, a large air bag is composed of a first left air bag, a first right air bag and a connecting channel, the two air bags are communicated through the connecting channel, and the large air bag is connected with a seat cushion supporting structure. The inflation structure comprises a large air bag air valve which is communicated with the air containing cavity of the large air bag through a pipeline. The controller is connected with the atmosphere bag air valve and the air pump and can control the air pump and the atmosphere bag air valve to inflate or deflate the atmosphere bag air containing cavity so as to adjust the hardness of the corresponding position of the automobile seat cushion. Meanwhile, the controller is connected with the seat safety belt early warning device SBR or independently connected with the pressure sensor and used for detecting whether a passenger sits on the seat or not. If a passenger exists, the system is activated, and manual or self-adaptive adjustment of the user is supported; and if no passenger exists, the system is closed, and the controller exhausts the air in the large air bag. When in use, the local hardness of the seat cushion can be changed at one time, and the local hardness of the seat cushion can also be repeatedly changed in a multi-frequency manner, so that the massage effect is achieved. The automobile seat cushion not only can realize soft and hard alternation of local hardness of the seat cushion, but also has a massage function, and meets the increasing long-distance and short-distance use requirements on an automobile seat fatigue relieving system in the market.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle control, and particularly to an automotive seat fatigue relief system, method, and automotive seat. Background Art

[0002] Conventional vehicle seats can only perform mechanical adjustments of sitting postures. For hardness, it can only be adjusted by the softness and hardness of the seat cushion foam and the strength of the skeleton, and the hardness cannot be changed during use, which cannot meet the needs of different consumers for the hardness of the seat, and cannot achieve the soft feeling in the comfort mode and the supporting feeling in the sports mode, and cannot realize the switching of riding comfort for short-distance and long-distance driving. In addition, a single-hardness seat cannot match multiple driving modes such as sports, snow, and sand. The above problems need to be solved urgently. Summary of the Invention

[0003] The purpose of the present invention is to provide an automotive seat fatigue relief system, method, and automotive seat to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: An automotive seat fatigue relief system includes:

[0005] A seat cushion support structure, which is connected to the seat cushion skeleton of the automotive seat;

[0006] An airbag, the airbag includes a first left airbag, a first right airbag, and a connecting channel. The first left airbag and the first right airbag respectively have gas containing cavities, and the gas containing cavities of the first left airbag and the first right airbag are connected through the connecting channel. The airbag is connected to the seat cushion support structure;

[0007] An inflation structure and a pipeline, the inflation structure includes an airbag valve, and the airbag valve is connected to the gas containing cavity of the airbag through the pipeline;

[0008] A controller and an air pump, the controller is respectively connected to the airbag valve and the air pump, and is used to control the air pump and the airbag valve to inflate or deflate the gas containing cavity of the airbag, so as to control the hardness of the corresponding position of the automotive seat cushion;

[0009] A pressure sensor, the pressure sensor is connected to the controller, and is used to detect the pressure in the gas containing cavity.

[0010] Further, the first left airbag and the first right airbag are columnar structures or spherical structures.

[0011] Further, after inflation, at least part of the first left airbag and the first right airbag gradually decreases in height along the direction towards the seat back from one end far away from the seat back; between the connecting channel near the seat back end and the seat back, the distance between the first left airbag and the first right airbag gradually increases, and its height gradually tends to be horizontal.

[0012] Further, it further includes an air pocket, which is connected to the seat cushion support structure. The air pocket includes a second left airbag and a second right airbag. The second left airbag and the second right airbag are respectively provided with a gas storage cavity. The inflation structure includes an air pocket valve. The air pocket valve is communicated with the gas storage cavity of the air pocket through a pipeline. The controller is connected to the air pocket valve to control the air pocket valve to inflate or deflate the gas storage cavity of the air pocket, so as to control the hardness of the corresponding position of the vehicle seat cushion.

[0013] Further, a seat cushion elastic foam is provided between the seat cushion support structure and the air pocket and the airbag respectively. The vehicle seat skin is wrapped in the direction away from the seat cushion support structure for the air pocket and the airbag. The maximum inflation volume in the gas storage cavity is correspondingly set with the maximum compression volume of the seat cushion elastic foam.

[0014] Further, it further includes:

[0015] a backrest support structure, which is connected to the vehicle seat backrest frame;

[0016] a lumbar airbag, which is connected to the backrest support structure. The lumbar airbag is provided with a plurality of lumbar airbags. The lumbar airbags have gas storage cavities inside. The plurality of lumbar airbags are arranged in a continuously partially superimposed manner based on ergonomics;

[0017] The inflation structure includes a lumbar airbag valve. The lumbar airbag valve is communicated with the gas storage cavity of the lumbar airbag through a pipeline. The controller is connected to the lumbar airbag valve to control the air pump and the lumbar airbag valve to inflate or deflate the gas storage cavity of the lumbar airbag, so as to control the hardness of the corresponding position of the vehicle seat backrest.

[0018] Further, the gas storage cavity includes a connecting soft sheet. The gas storage cavities in the first left airbag and the first right airbag are respectively provided with a connecting soft sheet. By setting the height of the connecting soft sheet, the limit distance of the gas storage cavity expanding in the direction away from the first seat cushion support structure is limited;

[0019] A plurality of connecting soft sheets are arranged in the gas storage cavity at intervals in the direction away from the seat backrest, and the length of each connecting soft sheet is set based on ergonomics;

[0020] After the control air pump and the airbag valve inflate the gas storage cavity of the airbag, the connecting channel expands under the action of the air pressure in the airbag, and its expansion height is correspondingly lower than the height of the connecting soft sheet.

[0021] On the other hand, a method for relieving fatigue of a vehicle seat is provided, which is applied to a vehicle seat fatigue relief system described in any one of the above. The method includes:

[0022] Obtain inflation information and exhaust information, where the inflation information and exhaust information respectively include air pump working information and air valve opening information of each air valve in the inflation structure;

[0023] The controller receives the inflation information, generates an air pump operation instruction according to the air pump working information, and generates an air valve opening instruction according to the air valve opening information;

[0024] The air pump receives the air pump operation instruction and drives the air pump to start working according to the air pump operation instruction;

[0025] Each corresponding air valve receives the corresponding air valve opening instruction and drives each air valve to open to the corresponding opening according to the corresponding air valve opening instruction to control the inflation speed and inflation volume of the corresponding gas containing cavity;

[0026] The controller receives the exhaust information, generates an air pump stop instruction according to the air pump working information, and generates an air valve opening instruction according to the air valve opening information;

[0027] The air pump receives the air pump stop instruction and drives the air pump to stop working according to the air pump stop instruction;

[0028] Each corresponding air valve receives the corresponding air valve opening instruction and drives each air valve to open to the corresponding opening according to the corresponding air valve opening instruction to control the exhaust speed and exhaust volume of the corresponding gas containing cavity.

[0029] Furthermore, it further includes:

[0030] Set the cycle control strategy for inflation and deflation of each gas containing cavity based on time and sequence;

[0031] The controller inflates and exhausts each gas containing cavity according to the cycle control strategy to achieve the occupant massage function.

[0032] On the other hand, a vehicle seat is provided, which applies the vehicle seat fatigue relief system described in any one of the above.

[0033] Compared with the prior art, the beneficial effects of the present invention are: during the use of the present invention, the hardness of the seat cushion can be changed to meet the needs of different consumers for the seat hardness, achieving a soft feeling in the comfort mode and a supporting feeling in the sports mode, realizing the switching of ride comfort for short-distance and long-distance driving, and enabling the seat to match multiple driving and riding modes such as sports, snow, and sand. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structural connection of the vehicle seat in the embodiment of the present invention;

[0035] Figure 2 It is a schematic diagram of the structural connection of the vehicle seat fatigue relief system in the embodiment of the present invention;

[0036] Figure 3 Schematic diagram of the positions where the occupant interacts with the small airbag and the large airbag in the embodiments of the present invention;

[0037] Figure 4 Schematic diagram of the state of the small airbag and the large airbag when not inflated in the embodiments of the present invention;

[0038] Figure 5 Schematic diagram of the state of the small airbag and the large airbag after inflation in the embodiments of the present invention;

[0039] Figure 6 Top view schematic diagram of the large airbag in the embodiments of the present invention;

[0040] Figure 7 Schematic diagram of two connection channels arranged in the large airbag in the embodiments of the present invention;

[0041] Figure 8 Top view (a) and side view (b) of the large airbag in the embodiments of the present invention;

[0042] Figure 9 Schematic diagram of the connecting soft sheet in the gas accommodation cavity in the embodiments of the present invention;

[0043] Figure 10 Flowchart of a method for relieving fatigue of an automotive seat in the embodiments of the present invention;

[0044] In the figure: 10, large airbag; 20, seat cushion support structure; 30, automotive seat cushion skeleton; 40, inflation structure; 50, pipeline; 60, air pump; 70, connecting soft sheet; 80, small airbag; 90, backrest support structure; 11, first left airbag; 12, first right airbag; 13, connection channel; 81, second left airbag; 82, second right airbag; 91, lumbar airbag; 911, lumbar support airbag. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0046] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 construed as a limitation on the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Please refer to the accompanying drawings of the specification. The present invention provides a technical solution: as Figure 1 shown, an anti-fatigue system for an automotive seat, comprising:

[0049] a seat cushion support structure 20, which is connected to the seat cushion frame 30 of the automotive seat;

[0050] a large airbag 10, the large airbag 10 includes a first left airbag 11, a first right airbag 12 and a connection channel 13. The first left airbag 11 and the first right airbag 12 respectively have gas containing chambers, and the gas containing chambers of the first left airbag 11 and the first right airbag 12 are communicated through the connection channel 13. The large airbag 10 is connected to the seat cushion support structure 20;

[0051] an inflation structure 40 and a pipeline 50, the inflation structure 40 includes an airbag valve for the large airbag, and the airbag valve for the large airbag is communicated with the gas containing chamber of the large airbag 10 through the pipeline 50;

[0052] a controller and an air pump 60, the controller is respectively connected to the airbag valve for the large airbag and the air pump 60, and is used to control the air pump 60 and the airbag valve for the large airbag to inflate or deflate the gas containing chamber of the large airbag 10, so as to control the hardness of the corresponding position of the automotive seat cushion;

[0053] a pressure sensor, the pressure sensor is connected to the controller and is used to detect the pressure in the gas containing chamber.

[0054] In the above embodiments, a first left airbag 11 and a first right airbag 12 are arranged below the ischium of the seat cushion to form a large airbag 10. When the large airbag 10 is not inflated, it has a relatively soft sitting feeling, and when the large airbag 10 is inflated, it has a relatively hard sitting feeling. The hardness adjustment system consists of an air pump 60, a pipeline 50, a controller, and the large airbag 10. By sending instructions to the controller, the controller realizes the inflation and deflation of the large airbag 10 through the air pump 60. Different inflation amounts correspond to different seat cushion hardnesses. The controller is connected to a pressure sensor. When the detected pressure in the airbag exceeds the threshold value, the inflation stops, which plays a role in protecting the product. The first left airbag 11 and the first right airbag 12 are respectively arranged below the two sides of the ischium. The first left airbag 11 and the first right airbag 12 are connected through a connection channel 13 in the middle, which plays a role in balancing the pressures of the two side airbags. The connection channel 13 can be a single connection channel or arranged as multiple independent connection channels, such as Figure 7 shown, arranged as two connected channels 13. Preferably, the rising height of the connection channel 13 is within 1 / 5 to 1 / 3 of the rising height of the two side airbags; the controller is connected to the seat belt pre-warning device SBR or separately connected to the pressure sensor, and is used to detect whether there is a passenger on the seat. If there is a passenger, the system is activated to support manual or adaptive adjustment by the user. If there is no passenger, the system is closed, and the controller empties the gas in the large airbag.

[0055] Preferably, the first left airbag 11 and the first right airbag 12 are in a columnar structure or a spherical structure.

[0056] In the above embodiments, as Figure 4 shown, the first left airbag 11 and the first right airbag 12 are in the non-inflated state. As Figure 5 shown, the first left airbag 11 and the first right airbag 12 are in a columnar structure after inflation; as Figure 6 shown, in this embodiment, it is preferred that the length and width of the first left airbag 11 and the first right airbag 12 are respectively between 70 and 100 mm and between 100 and 150 mm, and the length and width of the connection channel 13 are respectively between 60 and 150 mm and between 20 and 30.

[0057] Preferably, at least part of the first left airbag 11 and the first right airbag 12 after inflation gradually decreases in height along the direction towards the seat back at one end away from the seat back; between the connection channel near the seat back end and the seat back, the distance between the first left airbag 11 and the first right airbag 12 gradually increases, and its height gradually tends to be horizontal.

[0058] In the above embodiments, as Figure 8As shown in the figure, Figure a is a top view schematic diagram of the large airbag. Between the end of the connection channel close to the seat back and the seat back, the distance between the first left airbag 11 and the first right airbag 12 gradually increases; Figure b is a side view schematic diagram of the large airbag. After inflation, at least part of the first left airbag 11 and the first right airbag 12 gradually decreases in height towards the seat back from the end far from the seat back, and in the area between the end of the connection channel close to the seat back and the seat back, its height gradually tends to be horizontal. This setting method makes the occupant more comfortable. In this embodiment, it is preferably that after inflation, the first left airbag 11 and the first right airbag 12 gradually decrease in height towards the seat back from the end far from the seat back, and the height difference of the decrease is between 10 and 20 mm, and then tends to be horizontal.

[0059] Preferably, it further includes a small airbag 80. The small airbag 80 is connected to the seat cushion support structure 20. The small airbag 80 includes a second left airbag 81 and a second right airbag 82. The second left airbag 81 and the second right airbag 82 are respectively provided with gas storage chambers. The inflation structure 40 includes a small airbag valve. The small airbag valve is connected to the gas storage chambers of the small airbag 80 through a pipeline 41. The controller is connected to the small airbag valve to control the small airbag valve to inflate or deflate the gas storage chambers of the small airbag 80, so as to control the hardness of the corresponding position of the car seat cushion.

[0060] Preferably, a seat cushion elastic foam is provided between the seat cushion support structure 20 and the large airbag 10 and the small airbag 80 respectively. The car seat skin is covered in the direction away from the seat cushion support structure 20 for the small airbag 80 and the large airbag 10. The maximum inflation volume in the gas storage chamber is correspondingly set with the maximum compression volume of the seat cushion elastic foam.

[0061] In the above embodiment, the small airbag 80 and the large airbag 10 are arranged in a sandwich structure between the seat cushion elastic foam and the seat skin. When not inflated, the upper surface of the large airbag 10 is basically flush with the surface of the seat cushion elastic foam. What the occupant feels is the hardness of the seat cushion foam. After inflation, the thickness of the airbag increases and is higher than the surface of the seat cushion elastic foam, and the hardness of the inflated airbag is greater than the hardness of the seat cushion elastic foam. The occupant's sitting feeling is relatively hard, the support feeling is improved, and the pressure on the non-airbag area of the legs and buttocks becomes smaller, which can improve blood circulation in the human body and achieve the effect of relieving fatigue. The principle of the small airbag 80 under the legs is the same as that of the large airbag 10. The maximum inflation volume of the two airbags can be set to 50% - 100%, depending on the matching state with the foam.

[0062] Preferably, it further includes:

[0063] A backrest support structure 90, and the backrest support structure 90 is connected to the car seat backrest frame;

[0064] The lumbar support airbag 91 is connected to the backrest support structure 90. The lumbar support airbag 91 is provided with a plurality of lumbar support airbags 911. Each lumbar support airbag 911 has a gas accommodation chamber, and the plurality of lumbar support airbags 911 are arranged in a continuously partially overlapping manner based on ergonomics.

[0065] The inflation structure 40 includes a lumbar support airbag valve. The lumbar support airbag valve is communicated with the gas accommodation chamber of the lumbar support airbag 91 through a pipeline 50. The controller is connected to the lumbar support airbag valve to control the air pump 60 and the lumbar support airbag valve to inflate or deflate the gas accommodation chamber of the lumbar support airbag 91, so as to control the hardness of the corresponding position of the car seat backrest.

[0066] In the above embodiment, the controller can adjust the lumbar support airbag 91 at the same time. When adjusting the hardness of the seat cushion, it will slightly change the sitting posture of the member. The lumbar support airbag 91 is adjusted through its own algorithm at the same time to make the human body in a comfortable sitting posture. The lumbar support airbag 91 can also be controlled separately. Among them, the large airbag 10 and the small airbag 80 in the seat cushion area, and the lumbar support airbag 91 can also realize the massage function. The airbags are alternately inflated and deflated through the algorithm of the controller, and at the same time follow a specific order and time to achieve the effect of relaxing muscles and relieving fatigue.

[0067] Preferably, the gas accommodation chamber includes a connecting soft sheet 70. The gas accommodation chambers in the first left airbag 11 and the first right airbag 12 are respectively provided with a connecting soft sheet 70. By setting the height of the connecting soft sheet 70, the limit distance of the gas accommodation chamber expanding in the direction away from the first seat cushion support structure 20 is restricted.

[0068] A plurality of connecting soft sheets 70 are arranged in the gas accommodation chamber at intervals in the direction away from the seat backrest, and the length of each connecting soft sheet 70 is set based on ergonomics.

[0069] Preferably, after the air pump 60 and the large airbag valve inflate the gas accommodation chamber of the large airbag 10, the connecting channel 13 expands under the action of the air pressure in the large airbag, and its expansion height is correspondingly lower than the height of the connecting soft sheet 70.

[0070] In the above embodiment, a connecting soft sheet 70 is provided in the middle of the airbag to limit the inflation height of the airbag. When the airbag is compressed and has no gas, the connecting soft sheet 70 is folded and stored inside the airbag. When the airbag is full of gas, the connecting soft sheet 70 is stretched, and the connecting soft sheet 70 ensures that there is no bulge in the middle of the airbag, ensuring the flatness of the airbag surface. Preferably, the rising height of the connecting channel 13 is within 1 / 5 to 1 / 3 of the rising height of the airbags on both sides. The connecting channel 13 can be set to one or multiple.

[0071] On the other hand, as Figure 10 shown, a method for relieving fatigue of a car seat is provided, which is applied to the system for relieving fatigue of a car seat described in any one of the above, and includes:

[0072] Obtain the pressure information of each gas containing cavity through a pressure sensor;

[0073] Obtain inflation information and exhaust information. The inflation information and exhaust information respectively include air pump working information, air valve opening information of each air valve in the inflation structure, and pressure threshold information set for the corresponding gas containing cavity;

[0074] The controller receives the inflation information, generates an air pump operation instruction according to the air pump working information, and generates an air valve opening instruction according to the air valve opening information;

[0075] The air pump receives the air pump operation instruction and drives the air pump to start working according to the air pump operation instruction. When;

[0076] Each corresponding air valve receives the corresponding air valve opening instruction and drives each air valve to open to the corresponding opening according to the corresponding air valve opening instruction to control the inflation speed of the corresponding gas containing cavity;

[0077] When the controller receives the pressure threshold information and the pressure information, and the pressure of the gas containing cavity reaches the pressure threshold, it is determined that the gas containing cavity has reached the required inflation volume, and the inflation of the gas containing cavity is stopped;

[0078] The controller receives the exhaust information, generates an air pump shutdown instruction according to the air pump working information, and generates an air valve opening instruction according to the air valve opening information;

[0079] The air pump receives the air pump shutdown instruction and drives the air pump to stop working according to the air pump shutdown instruction;

[0080] Each corresponding air valve receives the corresponding air valve opening instruction and drives each air valve to open to the corresponding opening according to the corresponding air valve opening instruction to control the exhaust speed and exhaust volume of the corresponding gas containing cavity.

[0081] Among them, preferably, the controller is connected to the seat belt warning device SBR or is separately connected to the pressure sensor, and is used to detect whether there is a passenger on the seat. If there is a passenger, the system is activated to support manual or adaptive adjustment by the user. If there is no passenger, the system is turned off, and the controller empties the gas in the airbag.

[0082] Preferably, it further includes:

[0083] Set an inflation and deflation cycle control strategy for each gas containing cavity based on time and sequence;

[0084] The controller inflates and exhausts each gas containing cavity according to the cycle control strategy to realize the function of massaging the occupant.

[0085] Among them, the large airbag 10, small airbag 80 in the seat cushion area, and the lumbar support airbag 91 can also achieve a massage function. By means of the algorithm of the controller, the airbags are alternately inflated and deflated while following a specific order and time to achieve the effect of relaxing muscles and relieving fatigue.

[0086] On the other hand, an automotive seat is provided, which applies the automotive seat fatigue relief system described in any one of the above.

[0087] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car seat fatigue relief system, characterized in that: include: A seat cushion support structure, the seat cushion support structure is connected to a seat cushion frame of an automobile seat; The large air bag comprises a first left air bag, a first right air bag and a connecting passage. The first left air bag and the first right air bag respectively have a gas containing chamber. The gas containing chambers of the first left air bag and the first right air bag are connected through the connecting passage. The large air bag is connected to the seat cushion support structure. The inflatable structure and pipeline, the inflatable structure includes an air valve of the large air bag, and the air valve of the large air bag is connected with the gas containing chamber of the large air bag through the pipeline; A controller and an air pump, wherein the controller is connected to the air valve of the large air bag and the air pump respectively, and is used to control the air pump and the air valve of the large air bag to inflate or deflate the gas containing cavity of the large air bag, so as to control the hardness of the corresponding position of the automobile seat cushion; The pressure sensor is connected to the controller and is used to detect the pressure in the gas containing chamber.

2. The vehicle seat fatigue relief system according to claim 1, characterized in that: The first left airbag and the first right airbag are columnar structures or spherical structures.

3. The vehicle seat fatigue relief system according to claim 1, characterized in that: After being inflated, the first left airbag and the first right airbag gradually decrease toward the seat back at least partially along the height away from one end of the seat back; between the end of the connecting channel close to the seat back and the seat back, the distance between the first left airbag and the first right airbag gradually increases, and their heights gradually tend to be horizontal.

4. The automobile seat fatigue relief system according to claim 1, characterized in that: It also includes a small air bag, which is connected to the seat cushion support structure. The small air bag includes a second left air bag and a second right air bag. The second left air bag and the second right air bag are respectively provided with a gas containing cavity. The inflation structure includes a small air bag valve. The small air bag valve is connected to the gas containing cavity of the small air bag through a pipeline. A controller is connected to the small air bag valve to control the small air bag valve to inflate or deflate the gas containing cavity of the small air bag, so as to control the hardness of the corresponding position of the car seat cushion.

5. The vehicle seat fatigue relief system according to claim 4, characterized in that: Cushion elastic foam is arranged between the seat cushion support structure and the small air bag and the large air bag respectively. The small air bag and the large air bag are covered with a car seat skin in a direction away from the seat cushion support structure. The maximum inflation volume in the gas containing cavity is set correspondingly to the maximum compression volume of the seat cushion elastic foam.

6. The vehicle seat fatigue relief system according to claim 1, characterized in that: Also includes: A backrest support structure, the backrest support structure is connected to a backrest frame of a vehicle seat; The lumbar support air bag is connected to the backrest support structure, and is provided with a plurality of lumbar support air bags, each of which has a gas accommodating cavity, and the plurality of lumbar support air bags are arranged in a continuous and partially superimposed manner based on ergonomics; The inflation structure includes a lumbar support air bag valve, which is connected to the gas containing chamber of the lumbar support air bag through a pipeline; a controller is connected to the lumbar support air bag valve to control the air pump and the lumbar support air bag valve to inflate or deflate the gas containing chamber of the lumbar support air bag to control the hardness of the corresponding position of the car seat back.

7. The vehicle seat fatigue relief system according to claim 1, characterized in that: The gas containing cavity includes a connecting soft film, and the gas containing cavity in the first left airbag and the first right airbag is respectively provided with a connecting soft film, and the maximum expansion distance of the gas containing cavity in the direction away from the first cushion support structure is limited by setting the height of the connecting soft film; A plurality of connecting soft sheets are arranged in the gas containing cavity, the plurality of connecting soft sheets are arranged at intervals in a direction away from the seat back, and the length of each connecting soft sheet is set based on ergonomics; After the air pump and the air valve of the air bag are controlled to inflate the gas containing cavity of the air bag, the connecting channel is expanded by the air pressure in the air bag, and its expanded height is correspondingly lower than the height of the connecting soft film.

8. A method for relieving fatigue of a car seat, applied to a system for relieving fatigue of a car seat as claimed in any one of claims 1 to 7, characterized in that: include: Obtaining pressure information of each gas containing cavity through a pressure sensor; Acquire inflation information and exhaust information, wherein the inflation information and exhaust information respectively include air pump operation information and valve opening information of each air valve in the inflation structure, and pressure threshold information set for the corresponding gas containing chamber; The controller receives the inflation information, generates an air pump operation instruction according to the air pump operation information, and generates an air valve opening instruction according to the air valve opening information; The air pump receives the air pump operation instruction, and drives the air pump to start working according to the air pump operation instruction. Each corresponding gas valve receives a corresponding gas valve opening instruction, and drives each gas valve to open to a corresponding opening according to the corresponding gas valve opening instruction, so as to control the inflation speed of the corresponding gas containing cavity; When the controller receives the pressure threshold information and the pressure information and the pressure of the gas containing chamber reaches the pressure threshold, it is determined that the gas containing chamber reaches the required inflation volume and the inflation into the gas containing chamber is stopped; The controller receives the exhaust information, generates an air pump shutdown instruction according to the air pump working information, and generates an air valve opening instruction according to the air valve opening information; The air pump receives an air pump stop instruction, and drives the air pump to stop working according to the air pump stop instruction; Each corresponding gas valve receives a corresponding gas valve opening instruction, and drives each gas valve to open to a corresponding opening according to the corresponding gas valve opening instruction, so as to control the exhaust speed and exhaust volume of the corresponding gas containing chamber.

9. The method for relieving fatigue of a car seat according to claim 8, characterized in that: include: Setting a periodic control strategy for inflation and deflation of each gas containing chamber based on time and sequence; The controller inflates and exhausts each gas containing cavity according to a periodic control strategy to achieve a massage function for the occupants.

10. A car seat, characterized in that: A car seat fatigue relief system according to any one of claims 1 to 7.

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