An Adaptive Comfort Airbag Adjustment System, an Adjustment Seat, and an Adjustment Method

Abstract

The present invention relates to an adaptive comfort airbag adjustment system, an adjustable seat and an adjustment method. The adjustment system includes a first middle adjustment air cushion, a first wing adjustment air cushion, a second middle adjustment air cushion, a second wing adjustment air cushion, a first pressure detection pad, a second pressure detection pad, a detection pad controller, an adjustment air circuit assembly, an air pump and an air cushion controller. The first middle adjustment air cushion is arranged in the middle area of the seat backrest, and the first wing adjustment air cushion is arranged in the wing area of the seat backrest. The second middle adjustment air cushion is arranged in the middle area of the seat cushion, and the second wing adjustment air cushion is arranged in the wing area of the seat cushion. The first pressure detection pad is used to detect the pressure distribution of the backrest, and the second pressure detection pad is used to detect the pressure distribution of the seat cushion. The adjustment system can real-time feedback pressure data through flexible pressure detection pads, and use fine-tuning air cushions to solve the comfort differences caused by different passengers, thereby improving the comfort of the seat.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive parts, particularly to automotive seats, and specifically to an adaptive comfort airbag adjustment system, an adjustable seat, and an adjustment method. Background Art

[0002] During the production process of automotive seats, seats are designed based on a standard human model. However, in actual use, due to differences in human weight, body shape, and posture, there are actually differences in seats, which leads to fatigue when people sit on the seats for a long time. Fatigue affects the driving of passengers. Therefore, fine-tuning the seat according to the human body to reduce human fatigue and increase human comfort is the current development direction of automotive intelligence.

[0003] In the prior art, the foam of the seat has been continuously optimized to solve the problem of seat comfort through methods such as slow rebound, ultra-soft, and memory. However, due to the large differences in human weight and body posture, the method of adjusting the foam cannot completely solve the problem. Summary of the Invention

[0004] In view of the above problems, the purpose of the present invention is to provide an adaptive comfort airbag adjustment system. This adjustment system uses a flexible pressure detection pad to real-time feedback pressure data, and uses a fine-tuning airbag to solve the comfort differences caused by different passengers according to the pressure data, thereby improving the comfort of the seat.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An adaptive comfort airbag adjustment system includes N first middle adjustment airbags, a first wing adjustment airbag, N second middle adjustment airbags, a second wing adjustment airbag, a first pressure detection pad, a second pressure detection pad, a detection pad controller, an adjustment air circuit assembly, an air pump, and an airbag controller;

[0007] Among them, the N first middle adjustment airbags are arranged in the middle area of the seat backrest, and the first wing adjustment airbag is arranged in the wing area of the seat backrest; the N second middle adjustment airbags are arranged in the middle area of the seat cushion, and the second wing adjustment airbag is arranged in the wing area of the seat cushion;

[0008] The first pressure detection pad is arranged on the inner side of the seat backrest skin. The first pressure detection pad includes two backrest wing parts and a backrest main body part; the two backrest wing parts are arranged on the first wing adjustment airbag, and multiple sensors are arranged inside the backrest wing parts; the backrest main body part is arranged on the N first middle adjustment airbags, and the backrest main body part includes N pressure detection areas. The N pressure detection areas are arranged opposite to the N first middle adjustment airbags, and multiple sensors are arranged in each pressure detection area;

[0009] The second pressure detection pad is arranged inside the seat cushion skin. The second pressure detection pad includes two seat cushion wing parts and a seat cushion main body part. The two seat cushion wing parts are arranged on the upper surface of the second wing adjustment air cushion, and a plurality of sensors are arranged inside the seat cushion wing parts. The seat cushion main body part 62 is arranged on the upper surface of the 8 second middle adjustment air cushions 3. The seat cushion main body part includes N pressure detection areas, and the N pressure detection areas are arranged opposite to the N second middle adjustment air cushions. There are a plurality of sensors in each pressure detection area. The first pressure detection pad and the second pressure detection pad are connected to the detection pad controller, and are used to send the data monitored by each sensor in the first pressure detection pad and the second pressure detection pad to the detection pad controller.

[0010] The detection pad controller is used to calculate the pressure values P bs1 、P bs2 of the two wing areas of the seat back according to the data monitored by each sensor in the two backrest wing parts of the first pressure detection pad; calculate the pressure values P bm1 、P bm2…… P bmn of the N pressure detection areas in the middle of the seat back according to the data monitored by each sensor in the backrest main body part of the first pressure detection pad; calculate the pressure values P cs1 、P cs2 of the two wing areas of the seat cushion according to the data monitored by each sensor in the two seat cushion wing parts of the second pressure detection pad; calculate the pressure values P cm1 、P cm2…… P cmn of the N pressure detection areas in the middle of the seat cushion according to the data monitored by each sensor in the seat cushion main body part of the second pressure detection pad, and send the calculated data to the air cushion controller.

[0011] The adjustment air circuit assembly includes a plurality of branch pipelines. The plurality of branch pipelines are used to connect the N first middle adjustment air cushions, the first wing adjustment air cushion, the N second middle adjustment air cushions, and the second wing adjustment air cushion to the air pump. A regulating valve is installed on the branch pipeline.

[0012] The air pump and the regulating valve are connected to the air cushion controller.

[0013] The air cushion controller is used to calculate the average force P1 of the overall force-bearing area of the seat back, the average force P2 of the overall force-bearing area of the seat cushion, the average force P3 of the middle force-bearing area of the seat back, and the average force P4 of the middle force-bearing area of the seat cushion according to the data sent by the detection pad controller, and calculate The values, as well as the pressure differences between the two flank regions of the seat backrest / the pressure value of the flank region with relatively large pressure and the pressure differences between the two flank regions of the seat cushion / the pressure value of the flank region with relatively large pressure; compare them with the thresholds preset in the air cushion controller respectively; when exceeding the threshold, control the air pump and the corresponding regulating valve to open, and adjust the corresponding regulating air bag to make it within the set threshold.

[0014] Preferably, the N first middle regulating air cushions and the first flank regulating air cushions are fixed to the foam layer of the seat backrest by means of pasting and straps, and the first pressure detection pads are sewn to the inner side of the skin layer of the seat backrest; the N second middle regulating air cushions and the second flank regulating air cushions are fixed to the foam layer of the seat cushion by means of pasting and straps, and the second pressure detection pads are sewn to the inner side of the skin layer of the seat cushion; the foam layer serves as the bottom for support, and the skin layer is fixed by C-shaped nails and the steel wires of the foam layer.

[0015] Preferably, one end of the branch pipeline is communicated with the main pipeline, and the other end is communicated with the regulating air bag, and the main pipeline is connected with the air pump; the air pump is arranged inside the seat frame.

[0016] Preferably, the first pressure detection pads and the second pressure detection pads are connected to the detection pad controller through signal lines.

[0017] Preferably, the air cushion controller is provided with a data storage module, and the data storage module is used for memorizing and storing historical adjustment data.

[0018] The present invention also provides an adaptive comfort airbag adjustment seat, which includes a seat body, and the seat body includes a seat backrest and a seat cushion, and the above-mentioned adaptive comfort airbag adjustment system is installed on the seat backrest and the seat cushion.

[0019] The present invention also provides an adjustment method for an adaptive comfort airbag adjustment seat, and the method includes the following steps:

[0020] Step S1, initialization: After the adaptive comfort airbag adjustment system is started, the first pressure detection pads, the second pressure detection pads, the N first middle regulating air cushions, the first flank regulating air cushions, the N second middle regulating air cushions, and the second flank regulating air cushions perform self-checks. When there is no one sitting and there is no additional force, the system is initialized, the data of the first pressure detection pads and the second pressure detection pads are set to zero, the first middle regulating air cushions, the first flank regulating air cushions, the second middle regulating air cushions, and the second flank regulating air cushions empty the internal gas, and enter the state of waiting for someone to sit.

[0021] Step S2. Passenger seating: The passenger sits on the seat. After a set time, if the first pressure detection pad and the second pressure detection pad detect that the body posture force is stable, step S3 is executed;

[0022] Step S3. Pressure detection: Each sensor in the first pressure detection pad and the second pressure detection pad collects pressure data and sends the monitored data to the detection pad controller. The detection pad controller calculates the pressure values P bs1 , P bs2 of the two flank areas of the seat back according to the data monitored by each sensor in the two flank parts of the first pressure detection pad; calculates the pressure values P bm1 , P bm2…… P bmn of the N pressure detection areas in the middle of the seat back according to the data monitored by each sensor in the backrest main body part of the first pressure detection pad; calculates the pressure values P cs1 , P cs2 of the two flank areas of the seat cushion according to the data monitored by each sensor in the two flank parts of the second pressure detection pad; calculates the pressure values P cm1 , P cm2…… P cmn of the N pressure detection areas in the middle of the seat cushion according to the data monitored by each sensor in the cushion main body part of the second pressure detection pad, and sends the calculated data to the air cushion controller;

[0023] Step S4. Coarse adjustment: The air cushion controller calculates the average force P1 of the overall force area of the seat back, the average force P2 of the overall force area of the seat cushion, the average force P3 of the middle force area of the seat back, and the average force P4 of the middle force area of the seat cushion according to the data sent by the detection pad controller. The calculation formulas are as follows:

[0024]

[0025]

[0026]

[0027]

[0028] Seat back flank adjustment:

[0029] If the pressure value of one of the two flank areas of the seat back is 0, no flank adjustment is performed;

[0030] If the pressure values of the two flank areas of the seat back are both not 0, and Then, inflate and adjust the adjustable air cushions at the bottoms of the two flanking regions of the seat back with relatively high pressure, so that the pressure difference between the two flanking regions of the seat back / the pressure value of the flanking region with relatively high pressure ≤ 15%;

[0031] If the pressure values of the two flanking regions of the seat back are both non-zero, and and / or then inflate and adjust the adjustable air cushions at the bottoms of the flanking regions greater than 10% to make them less than or equal to 10%, and at the same time make the pressure difference between the two flanking regions of the seat back / the pressure value of the flanking region with relatively high pressure ≤ 15%;

[0032] Adjustment of the seat cushion flanks:

[0033] If the pressure value of one of the two flanking regions of the seat cushion is 0, no flank adjustment is performed;

[0034] If the pressure values of the two flanking regions of the seat cushion are both non-zero, and then inflate and adjust the adjustable air cushions at the bottoms of the two flanking regions of the seat cushion with relatively high pressure, so that the pressure difference between the two flanking regions of the seat cushion / the pressure value of the flanking region with relatively high pressure ≤ 15%;

[0035] If the pressure values of the two flanking regions of the seat cushion are both non-zero, and and / or then inflate and adjust the adjustable air cushions at the bottoms of the flanking regions greater than 10% to make them less than or equal to 10%, and at the same time make the pressure difference between the two flanking regions of the seat cushion / the pressure value of the flanking region with relatively high pressure ≤ 15%;

[0036] Adjustment of the middle region of the seat back:

[0037] Calculate respectively the value of. If the value of a certain pressure detection region exceeds 8%, then inflate and adjust the adjustable air cushion at its bottom to make it less than or equal to 8%;

[0038] Adjustment of the middle region of the seat cushion:

[0039] Calculate respectively the value of. If the value of a certain pressure detection region exceeds 8%, then inflate and adjust the adjustable air cushion at its bottom to make it less than or equal to 8%;

[0040] Step S5, Fine-tuning judgment: After the set time for rough adjustment is completed, the first pressure detection pad and the second pressure detection pad detect the force distribution again. When both the middle region of the seat back and the middle region of the seat cushion meet the adjustment criteria of step S4, that is: and are all less than or equal to 8%, and for the two wing regions of the seat back and the two wing regions of the seat cushion then make fine adjustments; otherwise, repeat step S4;

[0041] Step S6, fine tuning: When making fine adjustments, reduce the air intake of the air cushion to 30% of that during rough tuning; the adjustment standards for the two wing regions of the seat back and the two wing regions of the seat cushion are the same as those in step S4, or adjust the standard to the pressure difference between the two wing regions / the pressure value of the wing region with a larger pressure ≤ 6%; adjust the standards for the middle region of the seat back and the middle region of the seat cushion to that the and values are all less than or equal to 4%, and the adjustment process is the same as that in step S4;

[0042] Step S7, stability judgment: After the set time for fine tuning is completed, detect the stability of the body posture under stress. If the requirements are met, stop the adjustment; otherwise, repeat step S6 for detailed adjustment.

[0043] The advantages and positive effects of the present invention are:

[0044] (1) The adjustment system provided by the present invention can collect the human body pressure on the seat in real time through the sensors on the first pressure detection pad and the second pressure detection pad, and summarize the data to the detection pad controller. The detection pad controller calculates according to the sensor data, conducts pressure distribution feedback, and then can determine the pressure distribution situation through the calculation of the air cushion controller. According to the pressure distribution situation, the air cushion is adjusted adaptively to adjust the stress state of the seat, making the human body pressure distribution value more uniform and the human body more comfortable.

[0045] (2) The adjustment system provided by the present invention has the function of personal adaptive comfort adjustment. Under different sitting postures of a person, it calculates the pressure distribution of the human body in real time, so as to adjust the corresponding air cushion distribution pressure, and can also improve the comfort level when the human body changes its body posture.

[0046] (3) The adjustment system provided by the present invention has the function of adaptive comfort adjustment for different people. For people with different weights and body shapes, through the force analysis of the detection pad, it can analyze the pressure distribution of weight and body posture for the passengers, and memorize the data. When the same passenger takes the seat next time, the air cushion can be initially adjusted according to the memorized data, and then fine-tuned according to the detected pressure.

[0047] (4) The adaptive comfort adjustment seat structure provided by the present invention has the function of comfort adjustment. With the support of the force analysis data of the detection pad, the air cushion can support the points with large forces and maintain pressure, so as to keep the stress of the human body uniform and reduce the fatigue feeling during long-term sitting.

[0048] (5) The adjustment method of the present invention adjusts twice through coarse adjustment and fine adjustment, taking into account the efficiency and function of the seat for adaptive comfort adjustment, and realizing the adjustment of the adaptive comfort automotive seat. Description of the Drawings

[0049] Figure 1 It is a schematic installation diagram of the adjustment air cushion of the present invention on the seat:

[0050] Figure 2 It is a schematic installation diagram of the second middle adjustment air cushion and the second side wing adjustment air cushion of the present invention;

[0051] Figure 3 It is a schematic installation diagram of the second pressure detection pad and the detection pad controller of the present invention.

[0052] Figure 4 It is a schematic installation diagram of the first middle adjustment air cushion and the first pressure detection pad inside the seat of the present invention;

[0053] Figure 5 It is a schematic diagram of the first pressure detection pad of the present invention;

[0054] Figure 6 It is a regulation flowchart of the adaptive comfort airbag adjustment system of the present invention;

[0055] Figure 7 It is the initial pressure distribution diagram of the middle area of the seat cushion of the present invention;

[0056] Figure 8 It is the pressure distribution diagram of the middle area of the seat cushion after adjustment of the present invention;

[0057] Reference numerals: seat back A, seat cushion B, first middle adjustment air cushion 1, first side wing adjustment air cushion 2, second middle adjustment air cushion 3, second side wing adjustment air cushion 4, first pressure detection pad 5, second pressure detection pad 6, detection pad controller 7, air pump 8, air cushion controller 9, branch pipeline 10, foam layer 11, skin layer 12, backrest side wing part 51, backrest main body part 52, sensor 53, seat cushion side wing part 61, seat cushion main body part 62. Detailed Embodiments

[0058] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0059] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "lower", etc. is: based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing the present application 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 should not be construed as a limitation to the present application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0060] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "arrangement", "connection" 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, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0061] As Figures 1 to 5 shown, the present invention provides an automobile seat adaptive comfort airbag adjustment system, which includes eight first middle adjustment air cushions 1, a first side wing adjustment air cushion 2, eight second middle adjustment air cushions 3, a second side wing adjustment air cushion 4, a first pressure detection pad 5, a second pressure detection pad 6, a detection pad controller 7, an adjustment air circuit assembly, an air pump 8, and an air cushion controller 9;

[0062] Among them, the eight first middle adjustment air cushions 1 are arranged in the middle area of the seat backrest A, and the first side wing adjustment air cushion 2 is arranged in the side wing area of the seat backrest A; the eight second middle adjustment air cushions 3 are arranged in the middle area of the seat cushion B, and the second side wing adjustment air cushion 4 is arranged in the side wing area of the seat cushion B;

[0063] The first pressure detection pad 5 is arranged on the inner side of the seat backrest skin. The first pressure detection pad 5 includes two backrest side wing parts 51 and a backrest main body part 52; the two backrest side wing parts 51 are arranged on the first side wing adjustment air cushion 2, and multiple sensors 53 are arranged inside the backrest side wing parts; the backrest main body part 52 is arranged on the eight first middle adjustment air cushions 1, and the backrest main body part includes eight pressure detection areas, and the eight pressure detection areas are arranged opposite to the eight first middle adjustment air cushions. Multiple sensors 53 are arranged in each pressure detection area;

[0064] The second pressure detection pad 6 is disposed inside the seat cushion skin. The second pressure detection pad 6 includes two seat cushion flank portions 61 and a seat cushion main body portion 62. The two seat cushion flank portions 61 are disposed on the second flank adjustment air cushion 4, and a plurality of sensors are provided inside the seat cushion flank portions. The seat cushion main body portion 62 is disposed on the eight second middle adjustment air cushions 3. The seat cushion main body portion 62 includes eight pressure detection regions, and the eight pressure detection regions are disposed opposite to the eight second middle adjustment air cushions 3. A plurality of sensors are provided in each pressure detection region. The first pressure detection pad 5 and the second pressure detection pad 6 are connected to a detection pad controller 7, and are configured to send the data monitored by each sensor 53 in the first pressure detection pad 5 and the second pressure detection pad 6 to the detection pad controller 7.

[0065] The detection pad controller 7 is configured to calculate the pressure values P bs1 、P bs2 of the two flank regions of the seat back according to the data monitored by each sensor in the two backrest flank portions of the first pressure detection pad; calculate the pressure values P bm1 、P bm2…… P bm8 of the eight pressure detection regions in the middle of the seat back according to the data monitored by each sensor in the backrest main body portion of the first pressure detection pad; calculate the pressure values P cs1 、P cs2 of the two flank regions of the seat cushion according to the data monitored by each sensor in the two seat cushion flank portions of the second pressure detection pad; calculate the pressure values P cm1 、P cm2…… P cm8 of the eight pressure detection regions in the middle of the seat cushion according to the data monitored by each sensor in the seat cushion main body portion of the second pressure detection pad, and send the calculated data to the air cushion controller 9.

[0066] The regulating air circuit assembly includes a plurality of branch pipelines 10. The plurality of branch pipelines 10 are configured to connect the eight first middle adjustment air cushions 1, the first flank adjustment air cushion 2, the eight second middle adjustment air cushions 3, and the second flank adjustment air cushion 4 to an air pump. A regulating valve is installed on the branch pipeline 10; alternatively, one end of the branch pipeline 10 is connected to a main pipeline, and the other end is connected to a regulating air bag. The main pipeline is connected to the air pump 8.

[0067] The air pump 8 and the regulating valve are connected to the air cushion controller 9.

[0068] The air cushion controller 9 is configured to calculate the average force value P1 of the overall force-bearing region of the seat back, the average force value P2 of the overall force-bearing region of the seat cushion, the average force value P3 of the middle force-bearing region of the seat back, and the average force value P4 of the middle force-bearing region of the seat cushion according to the data sent by the detection pad controller 7, and calculate The values, as well as the pressure differences between the two flank regions of the seat backrest / the pressure values of the flank region with relatively large pressure and the pressure differences between the two flank regions of the seat cushion / the pressure values of the flank region with relatively large pressure; respectively compare them with the thresholds preset in the air cushion controller; when exceeding the threshold, control the air pump 8 and the corresponding regulating valve to open, and adjust the corresponding regulating air bag so that it is within the set threshold.

[0069] In this embodiment, the 8 first middle regulating air cushions 1 and the first flank regulating air cushions 2 are fixed to the foam layer 11 of the seat backrest by means of pasting and straps, and the first pressure detection pad 5 is stitched to the inner side of the skin layer 12 of the seat backrest; the 8 second middle regulating air cushions and the second flank regulating air cushions are fixed to the foam layer of the seat cushion by means of pasting and straps, and the second pressure detection pad is stitched to the inner side of the skin layer of the seat cushion; the first pressure detection pad 5 and the second pressure detection pad 6 are connected to the detection pad controller 7 through signal lines; the foam layer 11 serves as the bottom for support, and the skin layer 12 is fixed by C-shaped nails and the steel wires of the foam layer, and the four layers are fixed to the vehicle seat frame as a whole.

[0070] Furthermore, the air pump 8 is arranged inside the seat frame; the air cushion controller 9 has a data storage module, and the data storage module is used to memorize and store the historical adjustment data.

[0071] Embodiment 2

[0072] As Figure 1 shown, the present invention provides an adaptive comfort airbag-adjustable seat, which includes a seat body. The seat body includes a seat backrest A and a seat cushion B, and the adaptive comfort airbag adjustment system described in Embodiment 1 is installed on the seat backrest A and the seat cushion B.

[0073] Embodiment 3

[0074] As Figure 6 shown, the present invention provides an adjustment method for an adaptive comfort airbag-adjustable seat, including the following steps:

[0075] Step S1, initialization: After the adaptive comfort airbag adjustment system is started, the first pressure detection pad, the second pressure detection pad, the 8 first middle regulating air cushions, the first flank regulating air cushions, the 8 second middle regulating air cushions, and the second flank regulating air cushions perform self-checks. When there is no one sitting and there is no additional force, the system is initialized, the data of the first pressure detection pad and the second pressure detection pad are set to zero, and the first middle regulating air cushions, the first flank regulating air cushions, the second middle regulating air cushions, and the second flank regulating air cushions empty the internal gas and enter the state of waiting for someone to sit.

[0076] Step S2. Passenger sitting: The passenger sits on the seat. After 5 seconds of the set time, if the first pressure detection pad and the second pressure detection pad detect that the body posture force is stable (the pressure dynamic deviation value is less than 5%), then step S3 is executed;

[0077] Step S3. Pressure detection: Each sensor in the first pressure detection pad and the second pressure detection pad collects pressure data, and sends the monitored data to the detection pad controller. The detection pad controller calculates the pressure values P bs1 、P bs2 of the two flank areas of the seat back according to the data monitored by each sensor in the two flank parts of the first pressure detection pad; calculates the pressure values P bm1 、P bm2…… P bm8 of the 8 pressure detection areas in the middle of the seat back according to the data monitored by each sensor in the backrest main body part of the first pressure detection pad; calculates the pressure values P cs1 、P cs2 of the two flank areas of the seat cushion according to the data monitored by each sensor in the two flank parts of the second pressure detection pad; calculates the pressure values P cm1 、P cm2…… P cm8 of the 8 pressure detection areas in the middle of the seat cushion according to the data monitored by each sensor in the seat cushion main body part of the second pressure detection pad, and sends the calculated data to the air cushion controller;

[0078] Taking the initial pressure distribution diagram of the middle area of the seat cushion as an example, it can be seen through Figure 7 that the initial pressure in the middle area of the seat cushion is uneven;

[0079] Step S4. Coarse adjustment: The air cushion controller calculates the average force P1 of the overall force-bearing area of the seat back, the average force P2 of the overall force-bearing area of the seat cushion, the average force P3 of the middle force-bearing area of the seat back, and the average force P4 of the middle force-bearing area of the seat cushion according to the data sent by the detection pad controller. The calculation formulas are as follows:

[0080]

[0081]

[0082]

[0083]

[0084] Seat back flank adjustment:

[0085] If the pressure value of one of the two flank areas of the seat back is 0, no flank adjustment is performed;

[0086] If the pressure values of both flanking regions of the seat backrest are not zero, and then inflate and adjust the regulating air cushion at the bottom of the flanking region with the larger pressure among the two flanking regions of the seat backrest, so that the pressure difference between the two flanking regions of the seat backrest / the pressure value of the flanking region with the larger pressure ≤ 15%;

[0087] If the pressure values of both flanking regions of the seat backrest are not zero, and and / or then inflate and adjust the regulating air cushion at the bottom of the flanking region greater than 10% to make it less than or equal to 10%, and at the same time make the pressure difference between the two flanking regions of the seat backrest / the pressure value of the flanking region with the larger pressure ≤ 15%;

[0088] Seat cushion flanking adjustment:

[0089] If the pressure value of one of the two flanking regions of the seat cushion is zero, no flanking adjustment is performed;

[0090] If the pressure values of both flanking regions of the seat cushion are not zero, and then inflate and adjust the regulating air cushion at the bottom of the flanking region with the larger pressure among the two flanking regions of the seat cushion, so that the pressure difference between the two flanking regions of the seat cushion / the pressure value of the flanking region with the larger pressure ≤ 15%;

[0091] If the pressure values of both flanking regions of the seat cushion are not zero, and and / or then inflate and adjust the regulating air cushion at the bottom of the flanking region greater than 10% to make it less than or equal to 10%, and at the same time make the pressure difference between the two flanking regions of the seat cushion / the pressure value of the flanking region with the larger pressure ≤ 15%;

[0092] Seat backrest middle region adjustment:

[0093] Calculate respectively the value of, if a certain pressure detection region the value of exceeds 8%, then inflate and adjust the regulating air cushion at its bottom to make it less than or equal to 8%;

[0094] Seat cushion middle region adjustment:

[0095] Calculate respectively the value of, if a certain pressure detection region the value of exceeds 8%, then inflate and adjust the regulating air cushion at its bottom to make it less than or equal to 8%;

[0096] Step S5, Fine-tuning Judgment: 5 seconds after the coarse-tuning is completed, the first pressure detection pad and the second pressure detection pad detect the force distribution again. When both the middle area of the seat back and the middle area of the seat cushion meet the adjustment criteria of Step S4, that is: and are both less than or equal to 8%, and the of both the two flank areas of the seat back and the two flank areas of the seat cushion, then perform fine adjustment and execute Step S6; otherwise, repeat Step S4;

[0097] Step S6, Fine-tuning: During fine-tuning, the air intake of the adjustment air cushion is reduced to 30% of that in the coarse-tuning; the adjustment criteria for both the two flank areas of the seat back and the two flank areas of the seat cushion are adjusted to the pressure difference between the two flank areas / the pressure value of the flank area with a larger pressure ≤ 6%; the criteria for the middle area of the seat back and the middle area of the seat cushion are adjusted to the pressure detection area and both values are less than or equal to 4%, and the adjustment process is the same as Step S4;

[0098] After fine-tuning, the pressure distribution of the seat back and the seat cushion is uniform. Taking the pressure in the middle area of the seat cushion after adjustment as an example, through Figure 8 it can be determined that the pressure distribution in the middle area of the seat cushion after adjustment is uniform;

[0099] Step S7, Stability Judgment: 10 seconds after the fine-tuning is completed, detect the stability of the body posture under force; if it meets the requirements, that is, the dynamic pressure deviation value is less than 5% (±5%), then stop the adjustment (end); otherwise, repeat Step S6 for detailed adjustment.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, rather than to limit them; although the embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the solutions of the embodiments of the present invention.

Claims

1. An adjustment method for an adaptive comfort airbag-adjusted seat, characterized in that, The method includes the following steps: Step S1, Initialization: After the adaptive comfort airbag adjustment system is started, the first pressure detection pad, the second pressure detection pad, N first middle adjustment airbags, the first side wing adjustment airbag, N second middle adjustment airbags, and the second side wing adjustment airbag perform self-checks. When there is no one sitting and no additional force, the system is initialized. The data of the first pressure detection pad and the second pressure detection pad are set to zero, and the first middle adjustment airbag, the first side wing adjustment airbag, the second middle adjustment airbag, and the second side wing adjustment airbag empty the internal gas and enter the state of waiting for someone to sit. Step S2, Passenger sitting: When a passenger sits on the seat and after a set time, if the first pressure detection pad and the second pressure detection pad detect that the body posture force is stable, then step S3 is executed. Step S3, Pressure Detection: Each sensor in the first pressure detection pad and the second pressure detection pad collects pressure data and sends the monitored data to the detection pad controller. The detection pad controller calculates the pressure values P bs1 , P bs2 ; of the two wing areas of the seat back according to the data monitored by each sensor in the two wing parts of the first pressure detection pad; calculates the pressure values P of the N pressure detection areas in the middle of the seat back according to the data monitored by each sensor in the backrest main part of the first pressure detection pad bm1、 P bm2…… P bmn ; calculates the pressure values P cs1 , P cs2 ; of the two wing areas of the seat cushion according to the data monitored by each sensor in the two wing parts of the second pressure detection pad; calculates the pressure values P of the N pressure detection areas in the middle of the seat cushion according to the data monitored by each sensor in the cushion main part of the second pressure detection pad cm1、 P cm2…… P cmn , and sends the calculated data to the air cushion controller; Step S4, Coarse adjustment: The airbag controller calculates the average force P1 of the overall force-bearing area of the seat backrest, the average force P2 of the overall force-bearing area of the seat cushion, the average force P3 of the middle force-bearing area of the seat backrest, and the average force P4 of the middle force-bearing area of the seat cushion according to the data sent by the detection pad controller. The calculation formulas are as follows: Seat backrest side wing adjustment: If the pressure value in one of the two side wing areas of the seat backrest is 0, no side wing adjustment is performed. If the pressure values of both flanking regions of the seat backrest are not zero, and then inflate and adjust the air cushions at the bottom of the flanking regions of the seat backrest with relatively higher pressure so that the pressure difference between the two flanking regions of the seat backrest / the pressure value of the flanking region with relatively higher pressure ≤ 15%; If the pressure values of both flanking regions of the seat backrest are not zero, and and / or then inflate and adjust the air cushions at the bottom of more than 10% of the flanking regions to make them less than or equal to 10%, and at the same time make the pressure difference between the two flanking regions of the seat backrest / the pressure value of the flanking region with a larger pressure ≤ 15%; Seat cushion side wing adjustment: If the pressure value in one of the two side wing areas of the seat cushion is 0, no side wing adjustment is performed. If the pressure values of both flanking regions of the seat cushion are not 0, and then inflate and adjust the air cushion at the bottom of the flanking region with a larger pressure among the two flanking regions of the seat cushion, so that the pressure difference between the two flanking regions of the seat cushion / the pressure value of the flanking region with a larger pressure ≤ 15%; If the pressure values of both flanking regions of the seat cushion are not zero, and and / or then inflate and adjust the air cushions at the bottom of more than 10% of the flanking regions so that they are less than or equal to 10%, and at the same time make the pressure difference between the two flanking regions of the seat cushion / the pressure value of the flanking region with a larger pressure ≤ 15%; Seat backrest middle area adjustment: Calculate separately the value. If the value of a certain pressure detection area exceeds 8%, inflate and adjust the adjustment air cushion at its bottom to make it less than or equal to 8%; Seat cushion middle area adjustment: Calculate separately the value. If the value of a certain pressure detection area exceeds 8%, inflate and adjust the adjustment air cushion at its bottom so that it is less than or equal to 8%; Step S5, Fine-tuning Judgment: After the coarse adjustment is completed for the set time, the first pressure detection pad and the second pressure detection pad detect the force distribution again. When both the middle area of the seat backrest and the middle area of the seat cushion meet the adjustment criteria of Step S4, that is: and are both less than or equal to 8%, and for the two flank areas of the seat backrest and the two flank areas of the seat cushion then perform fine adjustment; otherwise, repeat Step S4; Step S6, Fine Tuning: During fine tuning, reduce the intake air volume of the air cushion to 30% of that during coarse tuning; the adjustment criteria for the two flank areas of the seat backrest and the two flank areas of the seat cushion are the same as in Step S4, or adjust the criteria to the pressure difference between the two flank areas / the pressure value of the flank area with higher pressure ≤ 6%; adjust the criteria for the middle area of the seat backrest and the middle area of the seat cushion to that the values of and are both less than or equal to 4%. The adjustment process is the same as in Step S4; Step S7, Stability judgment: After the fine adjustment is completed for a set time, the stability of the body posture force is detected. If it meets the requirements, the adjustment stops; otherwise, step S6 is repeated for fine adjustment.

2. The adjustment method for an adaptive comfort airbag-adjusted seat according to claim 1, characterized in that, The adaptive comfort airbag adjustment seat includes a seat body, and the seat body includes a seat backrest and a seat cushion. The adaptive comfort airbag adjustment system is installed on the seat backrest and the seat cushion.

3. The adjustment method for an adaptive comfort airbag-adjusted seat according to claim 1, characterized in that, The adaptive comfort airbag adjustment system includes N first middle adjustment airbags, a first side wing adjustment airbag, N second middle adjustment airbags, a second side wing adjustment airbag, a first pressure detection pad, a second pressure detection pad, a detection pad controller, an adjustment air path assembly, an air pump, and an airbag controller; Among them, the N first middle adjustment airbags are arranged in the middle area of the seat backrest, and the first side wing adjustment airbag is arranged in the side wing area of the seat backrest; the N second middle adjustment airbags are arranged in the middle area of the seat cushion, and the second side wing adjustment airbag is arranged in the side wing area of the seat cushion; The first pressure detection pad is arranged on the inner side of the seat backrest skin. The first pressure detection pad includes two backrest side wing parts and a backrest main body part; the two backrest side wing parts are arranged above the first side wing adjustment airbag, and multiple sensors are arranged inside the backrest side wing parts; the backrest main body part is arranged above the N first middle adjustment airbags, and the backrest main body part includes N pressure detection areas. The N pressure detection areas are arranged opposite to the N first middle adjustment airbags, and multiple sensors are arranged in each pressure detection area; The second pressure detection pad is arranged inside the seat cushion skin. The second pressure detection pad includes two seat cushion flank parts and a seat cushion main body part. The two seat cushion flank parts are arranged on the upper surface of the second flank adjustment air cushion, and multiple sensors are arranged inside the seat cushion flank parts. The seat cushion main body part is arranged on the upper surface of the 8 second middle adjustment air cushions. The seat cushion main body part includes N pressure detection areas, and the N pressure detection areas are arranged opposite to the N second middle adjustment air cushions. Multiple sensors are arranged in each pressure detection area. The first pressure detection pad and the second pressure detection pad are connected to the detection pad controller, and are used to send the data monitored by each sensor in the first pressure detection pad and the second pressure detection pad to the detection pad controller. The detection pad controller is configured to calculate the pressure values P of the two flank regions of the seat back based on the data monitored by the sensors in the two backrest flank parts of the first pressure detection pad bs1 , P bs2 ; calculate the pressure values P of the N pressure detection regions in the middle of the seat back based on the data monitored by the sensors in the backrest main body part of the first pressure detection pad bm1 , P bm2…… P bmn ; calculate the pressure values P of the two flank regions of the seat cushion based on the data monitored by the sensors in the two seat cushion flank parts of the second pressure detection pad cs1 , P cs2 ; calculate the pressure values P of the N pressure detection regions in the middle of the seat cushion based on the data monitored by the sensors in the seat cushion main body part of the second pressure detection pad cm1 , P cm2…… P cmn , and send the calculated data to the air cushion controller; The adjustment air circuit assembly includes multiple branch pipelines, and the multiple branch pipelines are used to connect the N first middle adjustment air cushions, the first flank adjustment air cushion, the N second middle adjustment air cushions, and the second flank adjustment air cushion to the air pump. A regulating valve is installed on the branch pipeline. The air pump and the regulating valve are connected to the air cushion controller. The air cushion controller is used to calculate the average force P1 of the overall force-bearing area of the seat backrest, the average force P2 of the overall force-bearing area of the seat cushion, the average force P3 of the middle force-bearing area of the seat backrest, and the average force P4 of the middle force-bearing area of the seat cushion according to the data sent by the detection pad controller, and calculate the values of the pressure difference between the two flank areas of the seat backrest / the pressure value of the flank area with a relatively large pressure and the pressure difference between the two flank areas of the seat cushion / the pressure value of the flank area with a relatively large pressure; compare them with the thresholds preset in the air cushion controller respectively; when the threshold is exceeded, the air pump and the corresponding regulating valve are controlled to open to adjust the corresponding regulating airbag so that it is within the set threshold.

4. The adjustment method for an adaptive comfort airbag-adjusted seat according to claim 3, characterized in that, The N first middle adjustment air cushions and the first flank adjustment air cushion are fixed to the foam layer of the seat back by means of pasting and straps. The first pressure detection pad is sewn inside the skin layer of the seat back. The N second middle adjustment air cushions and the second flank adjustment air cushion are fixed to the foam layer of the seat cushion by means of pasting and straps. The second pressure detection pad is sewn inside the skin layer of the seat cushion. The foam layer serves as a bottom support, and the skin layer is fixed by C-shaped nails and steel wires of the foam layer.

5. The adjustment method for an adaptive comfort airbag-adjusted seat according to claim 3, characterized in that, One end of the branch pipeline is communicated with the main pipeline, and the other end is communicated with the adjustment air bag. The main pipeline is connected to the air pump. The air pump is arranged inside the seat frame.

6. The adjustment method of an adaptive comfort airbag-adjustable seat according to claim 3, characterized in that, The first pressure detection pad and the second pressure detection pad are connected to the detection pad controller through signal lines.

7. The adjustment method of an adaptive comfort airbag-adjustable seat according to claim 3, characterized in that, The air cushion controller is provided with a data storage module, and the data storage module is used to memorize and store historical adjustment data.

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