A seat suspension air bag adjustment method and system

Abstract

The application relates to the technical field of air bag damping seats of commercial vehicles, in particular to a seat suspension air bag adjusting method and system. The seat suspension air bag adjusting method comprises the following steps: obtaining a seat vibration amplitude; comparing the obtained seat vibration amplitude with a plurality of vibration amplitude intervals to obtain an air intake amount corresponding to the vibration amplitude interval where the obtained vibration amplitude is located, which is filled into the seat air bag through an air inlet valve; and adjusting the air inlet valve to fill air into the seat air bag according to the air intake amount. The application provides a seat suspension air bag adjusting method and system, so as to solve the problem that the air intake and discharge amount of the air bag cannot adapt to different road conditions and a plurality of vibration amplitudes in air bag damping in the related art.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air bag suspension seats of commercial vehicles, and in particular to a seat suspension air bag adjusting method and system. BACKGROUND

[0002] The damping device of the seat is an important component of the comfort of the seat and is one of the main functional components of the driver's seat.

[0003] In the related art, the current damping seat suspension system of the commercial vehicle mainly includes mechanical damping and air bag damping. The mechanical damping mainly provides the seat damping function by the cross arm + tension spring + damper, sets the passenger weight by adjusting the knob, so as to achieve the preset seat damping effect. The air bag damping mainly provides the seat damping function by the cross arm + air bag + damper + height adjusting valve, controls the hardness of the seat suspension by adjusting the damper, and controls the air bag inflation and deflation by adjusting the height valve, so as to achieve the height adjustment of the seat cushion.

[0004] However, the damping function of the mechanical damping is single, and for drivers of different weights, only one corresponding damping effect can be provided, which cannot meet the damping needs of different working conditions and personalized damping of drivers. The damping function of the air bag damping is rich, and the damping needs of different drivers can be met by adjusting the damping hardness and the height valve, but the adaptability to different working conditions is not good. For example, in the working condition of good road conditions such as highway, the seat amplitude is small, the air bag inflation and deflation amount meets the small amplitude vibration demand, the relative position of the seat cushion basically does not change, and comfortable driving experience is provided. However, when in the working condition of poor road conditions such as construction site and foundation pit, the seat amplitude is large, the air bag inflation and deflation amount cannot meet the large amplitude vibration fast response demand, the relative position of the seat cushion fluctuates greatly, and comfortable driving experience cannot be provided. SUMMARY

[0005] The seat suspension air bag adjusting method and system provided by the embodiments of the present application solve the problem that the air bag inflation and deflation amount in the air bag damping in the related art cannot adapt to different road conditions and various vibration amplitudes.

[0006] To achieve the above purpose, in a first aspect, the embodiments of the present application provide a seat suspension air bag adjusting method, which includes the following steps:

[0007] Obtaining the seat vibration amplitude;

[0008] Comparing the obtained seat vibration amplitude with a plurality of vibration amplitude intervals to obtain the air inlet amount of the air inlet valve filled into the seat air bag corresponding to the vibration amplitude interval where the obtained vibration amplitude is located;

[0009] Adjusting the air inlet valve to inflate the seat air bag according to the air inlet amount.

[0010] In some embodiments, it further includes:

[0011] According to the obtained seat amplitude interval, a working gear of the intake valve is correspondingly calibrated, and an intake amount of air entering the seat air bag through the intake valve corresponding to each working gear of the intake valve is obtained.

[0012] In some embodiments, the step of obtaining the intake amount corresponding to the vibration amplitude interval comprises:

[0013] In the vibration amplitude interval, a plurality of vibration amplitude point values are selected, and the seat is vibrated at a vibration amplitude;

[0014] The seat air bag is inflated;

[0015] The intake amount of air filled into the seat air bag by the intake valve is adjusted, and the seat vibration amplitude after damping by the seat air bag is measured, and the intake amount of air at which the seat vibration amplitude after damping is the smallest is found out;

[0016] By analogy, the intake amount of air of the seat air bag at which the seat vibration amplitude after damping is the smallest at each vibration amplitude point value is found out;

[0017] Based on the intake amount of air at which the seat vibration amplitude after damping is the smallest at each vibration amplitude point value, the intake amount of air of the seat air bag corresponding to the vibration amplitude interval is obtained.

[0018] In some embodiments, after inflating the seat air bag, the method further comprises the following steps:

[0019] Periodically obtaining the vibration amplitude of the seat;

[0020] Comparing the vibration amplitude obtained in the current period with a plurality of vibration amplitude intervals to obtain the vibration amplitude interval in which the vibration amplitude obtained in the current period is located;

[0021] Judging whether the vibration amplitude interval in which the vibration amplitude obtained in the current period is located is the same as the vibration amplitude interval in which the vibration amplitude obtained in the last period is located;

[0022] If the same, the intake amount of air filled into the seat air bag by the intake valve is not adjusted;

[0023] If not the same, the intake amount of air filled into the seat air bag by the intake valve is adjusted so that the intake amount of air is the intake amount corresponding to the vibration amplitude interval in which the vibration amplitude obtained in the current period is located.

[0024] In a second aspect, a seat suspension adjustment system is provided, comprising:

[0025] A sensor is configured to obtain the vibration amplitude of the seat;

[0026] a controller configured to: compare the obtained vibration amplitude with a plurality of vibration amplitude intervals to obtain an intake amount of air into the seat air bag corresponding to a vibration amplitude interval in which the obtained vibration amplitude is located; and adjust the intake valve to inflate the seat air bag according to the intake amount of air.

[0027] In some embodiments, the sensor is arranged on the seat.

[0028] The intake valve comprises an air inlet and an air outlet, the air inlet is configured to communicate with the air source, and the air outlet is configured to communicate with the seat air bag.

[0029] In some embodiments, the intake valve comprises a moving valve body and a static valve body, the moving valve body is movably arranged in the static valve body, and the axis of the moving valve body is parallel to the axis of the static valve body, the air inlet is arranged on the static valve body, and an air intake passage is arranged between the moving valve body and the static valve body.

[0030] The air intake passage comprises a first exhaust hole arranged on the moving valve body and a second exhaust hole arranged on the static valve body, and the controller is connected to the moving valve body and configured to control the overlapping area of the first exhaust hole and the second exhaust hole.

[0031] In some embodiments, the axis of the moving valve body is parallel to the arrangement direction of the air inlet and the air outlet.

[0032] The intake valve comprises an electromagnetic structure, the electromagnetic structure comprises a first electromagnetic coil arranged close to the air inlet and a second electromagnetic coil arranged close to the air outlet, and the first electromagnetic coil and the second electromagnetic coil are configured to suspend the moving valve body in the static valve body.

[0033] In some embodiments, the air intake passage comprises an exhaust passage arranged inside the moving valve body, one end of the exhaust passage communicates with the first exhaust hole, and the other end of the exhaust passage communicates with the air outlet.

[0034] In some embodiments, the sensor uses a displacement sensor.

[0035] The technical scheme provided by the present application has the following beneficial effects:

[0036] The seat suspension air bag adjustment method and system provided by the embodiments of the present application can adjust the air bag height according to different seat vibration amplitudes corresponding to different road conditions, because the vibration amplitude of the vehicle under various working conditions is obtained by the sensor, and then the air outlet of the intake valve is controlled to adjust the intake and exhaust amount of the air bag.

[0037] The vibration amplitude of the seat is obtained during the driving of the vehicle, and compared with each vibration amplitude interval, so as to obtain the size of the air inlet amount of the seat air bag to which the air inlet valve should be directed, and then the air inlet valve is adjusted to inflate the seat air bag according to the corresponding air inlet amount, the height of the seat air bag is adjusted, comfortable support force and position are provided for the customer, and therefore, the problem that the air inlet and outlet amount of the air bag in the air bag damping cannot adapt to various vibration amplitudes under different road conditions in the related art is solved. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0039] Figure 1 The flowchart of the seat suspension air bag adjustment method provided by the embodiments of the present application is shown in the figure.

[0040] Figure 2 The logic diagram of the seat suspension air bag adjustment method provided by the embodiments of the present application is shown in the figure.

[0041] Figure 3 The flowchart of obtaining the air inlet amount of the seat air bag corresponding to the vibration amplitude interval provided by the embodiments of the present application is shown in the figure.

[0042] Figure 4 The flowchart of adaptively controlling the air inlet amount of the seat air bag filled by the air inlet valve provided by the embodiments of the present application is shown in the figure.

[0043] Figure 5 The sectional view of the air inlet valve in the third gear provided by the embodiments of the present application is shown in the figure.

[0044] Figure 6 The sectional view of the air inlet valve in the first or second gear provided by the embodiments of the present application is shown in the figure.

[0045] Figure 7 The gas flow direction diagram of the air inlet valve in the third gear provided by the embodiments of the present application is shown in the figure.

[0046] In the figure: 1, sensor; 2, air inlet valve; 21, air inlet; 22, air outlet; 3, moving valve body; 31, first exhaust hole; 32, exhaust passage; 33, first sliding end; 34, second sliding end; 4, static valve body; 41, second exhaust hole; 5, first electromagnetic coil; 6, second electromagnetic coil. DETAILED DESCRIPTION

[0047] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0048] The seat suspension air bag adjusting method provided in the embodiments of the present application can solve the problem that the air bag damping cannot adapt to different road conditions and various vibration amplitudes.

[0049] Referring to Figures 1 to 4 The seat suspension air bag adjusting method provided in the embodiments of the present application includes the following steps:

[0050] S1, when the vehicle is in a driving state, the vibration amplitude of the seat.

[0051] In this step, the vibration amplitude of the seat can be measured by the sensor 1. Specifically, the sensor 1 can be a displacement sensor, which obtains the relative displacement amount of the seat in the up-down direction relative to the vehicle body floor to obtain the vibration amplitude of the seat. Further, the displacement sensor is arranged on the seat.

[0052] S2, comparing the obtained vibration amplitude of the seat with a plurality of vibration amplitude intervals to obtain the air intake amount of the intake valve 2 into the seat air bag corresponding to the vibration amplitude interval where the obtained vibration amplitude is located.

[0053] In this step, the vibration amplitude interval is calibrated in advance, and each vibration amplitude interval corresponds to the air intake amount of the intake valve 2 into the seat air bag calibrated in advance.

[0054] Obviously, the more the number of vibration amplitude intervals, the narrower the range of vibration amplitude interval values, the more accurate the control of the air intake amount of the seat air bag, and the better the effect, but the higher the control difficulty; and the fewer the number of intervals, the wider the range of vibration amplitude interval values, the more rough the control of the air intake amount of the seat air bag, and the worse the control effect, but the lower the control difficulty.

[0055] Therefore, the number of the above vibration amplitude intervals can be determined according to actual needs.

[0056] For example, as an example, taking the design state as 0 point, the vibration amplitude interval includes: [0mm, A1), [A1, A2), [A2, A3), [A3, ±40mm).

[0057] It should be noted that A1, A2 and A3 are all amplitude values, and A1 < A2 < A3, and optionally, the interval of the vibration amplitude interval value can be 10 mm, that is, A1 is ±10 mm, A2 is ±20 mm, and A3 is ±30 mm; of course, the upper and lower limits and the number of the above interval values are only examples, the number of intervals should be expanded to multiple gears for charge and discharge volume control, and the upper limit of the value range is not necessarily 40 mm, and should be different according to the definition of different product development technical characteristics.

[0058] S3, adjusting the intake valve 2 to charge the seat air bag according to the intake amount.

[0059] Since each vibration amplitude interval corresponds to a pre-calibrated intake amount of the intake valve 2 into the seat air bag, the seat vibration amplitude point value measured under a certain working condition can be corresponded to a certain vibration amplitude interval, so as to obtain the intake amount of the intake valve 2 into the seat air bag.

[0060] The seat suspension air bag adjusting method provided by the embodiment of the application has the principle that the vehicle amplitude under various working conditions is obtained through the sensor 1, the air outlet amount of the air outlet of the intake valve 2 is controlled, and then the charge and discharge amount of the seat air bag is adjusted, so that the air bag height can be adjusted according to different seat vibration amplitudes under different road conditions.

[0061] The seat vibration amplitude is obtained during vehicle driving, and compared with each vibration amplitude interval, so as to obtain the intake amount of the intake valve 2 into the seat air bag, and then the intake valve 2 is adjusted to charge the seat air bag according to the corresponding intake amount, the height of the seat air bag is adjusted, and comfortable support force and position are provided for customers, so that the problem that the charge and discharge amount of the air bag in the air bag damping cannot adapt to different road conditions and various vibration amplitudes in the related art can be solved.

[0062] Further, in the above step S2, the embodiment of the application further comprises corresponding to calibrate the working gear of the intake valve 2 according to the obtained seat amplitude interval, and obtaining the intake amount of the intake valve 2 into the seat air bag corresponding to each working gear of the intake valve 2.

[0063] Specifically, one vibration amplitude interval corresponds to one working gear of the intake valve 2, as shown in Figure 2 According to the seat vibration amplitude obtained by the sensor 1, the controller judges the vibration amplitude interval into which the seat vibration amplitude falls.

[0064] For example, when the vibration amplitude falls into the interval [0mm, ±10mm), the vehicle operating condition is identified as high-speed, national road, and the driving environment is good, and the controller controls the intake valve 2 to be in the first gear; when the vibration amplitude falls into the interval [±10mm, ±20mm), the vehicle operating condition is identified as provincial road and county road, and the driving environment is general, and the controller controls the intake valve 2 to be in the second gear; when the vibration amplitude falls into the interval [±20mm, ±40mm), the vehicle operating condition is identified as construction site and foundation pit, and the driving environment is poor, and the controller controls the intake valve 2 to be in the third gear; specifically, the air charging and discharging amount of the seat airbag by the intake valve 2 is third gear > second gear > first gear.

[0065] In the above step S2, the step of obtaining the air intake amount corresponding to the vibration amplitude interval includes:

[0066] S201. In the vibration amplitude interval, select several vibration amplitude point values, and make the seat vibrate at a vibration amplitude;

[0067] For example, in the vibration amplitude interval [0mm, ±40mm), select three vibration amplitude values [0mm, ±10mm), [±10mm, ±20mm), and [±20mm, ±40mm).

[0068] S202. Charge the seat airbag.

[0069] S203. Adjust the air intake amount of the intake valve 2 into the seat airbag, and measure the seat vibration amplitude after the seat airbag is damped, and find the air intake amount when the seat vibration amplitude after damping is the smallest.

[0070] Specifically, keep the vibration amplitude unchanged, measure the damping effect of the seat airbag at different air intake amounts of the intake valve 2 into the seat airbag, and change different vibration amplitude point values, perform multiple experiments, and determine the air charging amount of the seat airbag when the damping effect is the best at the vibration amplitude.

[0071] S204. Similarly, find the air intake amount of the seat airbag when the seat vibration amplitude after damping is the smallest at each vibration amplitude point value.

[0072] S205. Based on the air intake amount when the seat vibration amplitude after damping is the lowest at each vibration amplitude point value, obtain the air intake amount of the seat airbag corresponding to the vibration amplitude interval.

[0073] Alternatively, a common optimization method can be used to process the air charging amount of the seat airbag by the intake valve 2 when the damping effect is the best at each vibration amplitude point value, to obtain the air charging amount of the seat airbag by the intake valve 2 corresponding to each vibration amplitude interval.

[0074] For example, the average value of the inflation volume of the air intake valve 2 on the seat airbag when the vibration reduction effect is best can be calculated at each vibration amplitude point value in a certain vibration amplitude range. This average inflation volume can be used as the inflation volume of the air intake valve 2 on the seat airbag corresponding to that vibration amplitude range.

[0075] Similarly, the inflation volume of the seat airbag corresponding to the intake valve 2 in other vibration amplitude ranges can be obtained.

[0076] Of course, other commonly used optimization methods can also be used, such as curve fitting, simulation, etc.

[0077] Because road conditions often change during vehicle operation, the vibration amplitude of the seat constantly changes, such as when driving from a flat road to a construction site, or vice versa. When a vehicle is traveling from a relatively flat road to a bumpy construction site, the seat vibration amplitude is smaller on the flat road, and the airbag intake is lower. However, upon entering a construction site, the seat vibration amplitude increases, and the airbag needs a higher intake to achieve better vibration damping. Therefore, to solve this problem, see [link to relevant documentation]. Figure 4 As shown, this application also provides a strategy for adaptively controlling the air intake valve to inflate the seat airbag. Specifically, after inflating the seat airbag, the method further includes the following steps:

[0078] S401, periodically acquire the vibration amplitude of the seat.

[0079] Specifically, the period size can be set according to actual needs, such as acquiring the vibration amplitude of the seat once every 2 minutes or once every 5 minutes.

[0080] S402. Compare the vibration amplitude obtained in the current cycle with several vibration amplitude intervals to obtain the vibration amplitude interval in which the vibration amplitude obtained in the current cycle is located.

[0081] S403. Determine whether the vibration amplitude range obtained in the current cycle is the same as the vibration amplitude range obtained in the previous cycle.

[0082] S404. If the same, do not adjust the amount of air intake valve 2 that fills the seat airbag.

[0083] S405. If they are not the same, adjust the air intake valve 2 to fill the seat airbag with air so that the air intake is the air intake corresponding to the vibration amplitude range in which the vibration amplitude obtained in the current cycle is located.

[0084] The strategy of adaptively controlling the air intake amount of the seat air bag by the air intake valve can better adaptively adjust the air intake amount of the seat air bag by the air intake valve 2 according to the current driving road condition of the vehicle when the vibration amplitude information of the seat is acquired in time, adapt different vibration amplitudes of the seat under different operating conditions, and provide comfortable support force and position for the passenger and comfortable driving experience for the customer.

[0085] Based on the seat suspension adjustment method, as shown in Figures 5 to 7 The embodiment of the present application also provides a seat suspension adjustment system, which comprises a sensor 1 and a controller, wherein the sensor is used to acquire the vibration amplitude of the seat; the controller is used to compare the acquired vibration amplitude with a plurality of vibration amplitude intervals, obtain the air intake amount of the seat air bag corresponding to the vibration amplitude interval where the acquired vibration amplitude is located through the air intake valve 2, and adjust the air intake valve 2 to charge the seat air bag according to the air intake amount.

[0086] In some optional embodiments, the sensor 1 is arranged on the seat to acquire the vibration amplitude of the seat; as shown in Figure 5 The air intake valve 2 comprises an air inlet 21 and an air outlet 22, the air inlet 21 is connected in communication with the air source, and the air outlet 22 is connected in communication with the seat air bag.

[0087] It should be noted that the air inlet 21 of the air intake valve 2 is connected in communication with the air source, the air amount of the air source entering the air inlet 21 is constant, and the controller controls the air amount of the air outlet 22 of the air intake valve 2 to control the air intake amount of the seat air bag by the air intake valve 2. Optionally, the air source is a gas cylinder mounted on the vehicle body.

[0088] Optionally, as shown in Figure 5 and Figure 6 The air intake valve 2 comprises a moving valve body 3 and a static valve body 4, the moving valve body 3 is movably arranged in the static valve body 4, the axis of the moving valve body 3 is parallel to the axis of the static valve body 4, the air inlet 21 is arranged on the static valve body 4, and an air inlet passage is arranged between the moving valve body 3 and the static valve body 4.

[0089] The air inlet passage comprises a first air outlet hole 31 arranged on the moving valve body 3 and a second air outlet hole 41 arranged on the static valve body 4, the controller is connected with the moving valve body 3 and is used to control and adjust the overlapping area of the first air outlet hole 31 and the second air outlet hole 41.

[0090] Specifically, as shown in Figure 7 Figure 7 ​The arrow in the figure points to the direction of the gas flow from the air inlet 21 to the air outlet 22 of the air inlet valve 2. It can be seen that the side wall of the static valve body 4 is hollow, the air inlet 21 is arranged in the hollow part of the side wall of the static valve body 4, and the second exhaust hole 41 is arranged on the inner wall of the static valve body 4. The first exhaust hole 31 is correspondingly arranged on the dynamic valve body 3. By adjusting the position of the dynamic valve body 3 in the static valve body 4, the first exhaust hole 31 and the second exhaust hole 41 have different overlapping areas, and then the gas with different flow rates flows through the air inlet valve 2 and fills into the seat air bag from the air outlet 22 of the air inlet valve 2.

[0091] As shown in Figures 5 to 7 , the present application provides an embodiment, along the length direction of the static valve body 4, three second exhaust holes 41 are arranged, and similarly, three first exhaust holes 31 are arranged on the dynamic valve body 3, Figure 5 , and Figure 7 , the first exhaust hole 31 and the second exhaust hole 41 are completely overlapped, at this time, the air inlet valve 2 has the maximum air filling amount for the seat air bag; Figure 6 , the first exhaust hole 31 and the second exhaust hole 41 are partially overlapped, at this time, the air inlet valve 2 has a smaller air filling amount for the seat air bag.

[0092] Further, referring to Figures 5 to 7 , the axis of the dynamic valve body 3 is parallel to the arrangement direction of the air inlet 21 and the air outlet 22;

[0093] The air inlet valve 2 includes an electromagnetic structure, the electromagnetic structure includes a first electromagnetic coil 5 arranged close to the air inlet 21 and a second electromagnetic coil 6 arranged close to the air outlet 22, and the first electromagnetic coil 5 and the second electromagnetic coil 6 are used to suspend the dynamic valve body 3 in the static valve body 4.

[0094] Specifically, the first electromagnetic coil 5 and the second electromagnetic coil 6 generate magnetic force after being energized, for example, the first electromagnetic coil 5 and the second electromagnetic coil 6 generate repulsive force, so that the dynamic valve body 3 is suspended in the static valve body 4. By changing the current intensity passing through the first electromagnetic coil 5 and the second electromagnetic coil 6, the increase and decrease of the magnetic force of one side can be realized, and then the dynamic valve body 3 moves along the axis in the static valve body 4, and the overlapping area of the first exhaust hole 31 and the second exhaust hole 41 is adjusted.

[0095] Further, referring to Figures 5 to 7 , the dynamic valve body 3 includes a dynamic valve body main body, a first sliding end 33 and a second sliding end 34, wherein the first sliding end 33 and the second sliding end 34 are respectively connected to the two ends of the dynamic valve body main body, the first exhaust hole 31 is arranged on the dynamic valve body main body, the dynamic valve body main body is arranged in the static valve body 4, and the diameters of the first sliding end 33 and the second sliding end 34 are smaller than the diameter of the dynamic valve body main body, so that the dynamic valve body 3 will not be pulled out when moving in the static valve body 4.

[0096] Further, referring toFigures 5 to 7 As shown, the intake passage includes an exhaust passage 32 arranged inside the moving valve body 3, one end of the exhaust passage 32 is communicated with the first exhaust hole 31, and the other end is communicated with the gas outlet 22. Figure 7 As shown, the exhaust passage 32 is arranged along the axis direction of the moving valve body 3, and the gas flow direction is the intake port 21-the hollow part of the side wall of the static valve body 4-the second exhaust hole 41-the first exhaust hole 31-the exhaust passage 32-the gas outlet 22.

[0097] Further, the intake valve 2 is connected with an air bag height adjusting valve, and the controller controls the air intake amount of the seat air bag to control the height of the seat air bag.

[0098] Further, the above-mentioned controller is a vehicle ECU controller, the vehicle ECU controller records the air intake amount corresponding to each vibration amplitude interval calibrated in advance, the sensor inputs the obtained seat vibration amplitude into the vehicle ECU controller, the vehicle ECU controller outputs an execution signal to the intake valve 2 according to the pre-set control logic, and the real-time adjustment of the position of the moving valve body 3 in the static valve body 4 by the first electromagnetic coil 5 and the second electromagnetic coil 6 realizes the dynamic adjustment of the air intake and exhaust amount of the seat air bag, improves the response speed of the seat air bag, can adapt to different damping amplitudes of the seat under different operating conditions, provides comfortable support force and position for the customer, and has good driving experience.

[0099] In the description of the present application, it should be noted that the positions or position relationships indicated by the terms "upper", "lower" and the like are based on the positions or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0100] It should be noted that, in the present application, the relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0101] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above embodiments are illustrative, and not restrictive, of the scope of the application.

Claims

1. A method for adjusting a seat suspension airbag, characterized in that, It includes the following steps: Obtain the amplitude of seat vibration; The obtained seat vibration amplitude is compared with several vibration amplitude ranges to obtain the amount of air intake that is filled into the seat airbag through the air intake valve (2) corresponding to the vibration amplitude range in which the obtained vibration amplitude is located. Adjust the air intake valve (2) to inflate the seat airbag according to the air intake volume; After inflating the seat airbag, the following steps are also included: The vibration amplitude of the seat is periodically acquired; The vibration amplitude obtained in the current cycle is compared with several vibration amplitude intervals to obtain the vibration amplitude interval in which the vibration amplitude obtained in the current cycle is located. Determine whether the amplitude range of the current vibration amplitude is the same as the amplitude range of the previous vibration amplitude. If they are the same, then the intake valve (2) will not be adjusted to increase the amount of air entering the seat airbag; If they are not the same, adjust the intake valve (2) to fill the air into the seat airbag so that the intake volume is the intake volume corresponding to the vibration amplitude range in which the vibration amplitude obtained in the current cycle is located.

2. The seat suspension airbag adjustment method as described in claim 1, characterized in that, It also includes: Based on the obtained seat amplitude range, the corresponding working position of the intake valve (2) is calibrated, and the intake volume of air entering the seat airbag through the intake valve (2) corresponding to each working position of the intake valve (2) is obtained.

3. The seat suspension airbag adjustment method as described in claim 2, characterized in that, The steps for obtaining the intake volume corresponding to the vibration amplitude range include: Within the vibration amplitude range, select several vibration amplitude points and make the seat vibrate with one vibration amplitude. Inflate the seat airbags; Adjust the air intake valve (2) to increase the amount of air intake into the seat airbag, and measure the seat vibration amplitude after the seat airbag is damped, and find the air intake amount when the seat vibration amplitude is minimized. By analogy, find the air intake of the seat airbag when the seat vibration amplitude is minimized at each vibration amplitude point. Based on the air intake volume at the lowest vibration amplitude of the seat after vibration reduction at each vibration amplitude point, the air intake volume of the seat airbag corresponding to the vibration amplitude range is obtained.

4. A seat suspension adjustment system for implementing the seat suspension airbag adjustment method as described in claim 1, characterized in that, It includes: Sensor (1), which is used to: acquire the vibration amplitude of the seat; The controller is used to: compare the acquired vibration amplitude with several vibration amplitude intervals to obtain the amount of air entering the seat airbag through the air intake valve (2) corresponding to the vibration amplitude interval in which the acquired vibration amplitude is located; and adjust the air intake valve (2) to inflate the seat airbag according to the amount of air intake.

5. The seat suspension adjustment system as described in claim 4, characterized in that: The sensor (1) is mounted on the seat; The air intake valve (2) includes an air inlet (21) and an air outlet (22). The air inlet (21) is used to connect to an air source, and the air outlet (22) is connected to the seat airbag.

6. The seat suspension adjustment system as described in claim 5, characterized in that: The intake valve (2) includes a moving valve body (3) and a stationary valve body (4). The moving valve body (3) is movably disposed in the stationary valve body (4), and the axis of the moving valve body (3) is parallel to that of the stationary valve body (4). The intake port (21) is disposed on the stationary valve body (4), and an intake channel is provided between the moving valve body (3) and the stationary valve body (4). The air intake channel includes a first exhaust port (31) disposed on the moving valve body (3) and a second exhaust port (41) disposed on the stationary valve body (4). The controller is connected to the moving valve body (3) and is used to control and adjust the overlapping area of ​​the first exhaust port (31) and the second exhaust port (41).

7. The seat suspension adjustment system as described in claim 6, characterized in that: The axis of the moving valve body (3) is parallel to the setting direction of the air inlet (21) and the air outlet (22); The intake valve (2) includes an electromagnetic structure, which includes a first electromagnetic coil (5) disposed near the intake port (21) and a second electromagnetic coil (6) disposed near the outlet port (22). The first electromagnetic coil (5) and the second electromagnetic coil (6) are used to suspend the moving valve body (3) in the stationary valve body (4).

8. The seat suspension adjustment system as described in claim 6, characterized in that: The air intake channel includes an exhaust channel (32) disposed inside the moving valve body (3). One end of the exhaust channel (32) is connected to the first exhaust hole (31), and the other end is connected to the air outlet (22).

9. The seat suspension adjustment system as described in claim 4, characterized in that: The sensor (1) is a displacement sensor.

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