An intelligent adjustable air suspension system

Abstract

The present invention discloses an intelligent adjustable air suspension system, which relates to the technical field of automobile suspension, and comprises a detection module for real-time detection of road conditions; an air suspension module for adjusting the stability of the vehicle; and a control module for controlling the start and stop of the air suspension module; wherein the air suspension module is installed on the vehicle chassis, and comprises four air springs, each of the four air springs being connected to a first control component, each of the first control components being connected to an air storage bin, each of the air storage bin being connected to a second control component, each of the four second control components being commonly connected to an adjustment component, each of the adjustment components being connected to a third control component, and each of the third control components being connected to an air pump; the height of the air spring can be actively adjusted through active control, and when the detection module monitors the road conditions in real time, the air spring can be adjusted in real time through the air pump, thereby improving the shock absorption effect of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile suspension, in particular to an intelligent adjustable air suspension system. Background Art

[0002] The air suspension system is an intelligent suspension system that uses compressed air to adjust the vehicle body height and suspension hardness. It is mainly composed of air supply components, air springs, control units and sensors. These components work together to achieve functions such as automatic leveling, height adjustment and damping control.

[0003] The air pump in the existing air suspension system is used too frequently, especially on bumpy roads, which can easily cause the air pump to overheat and affect its use. In addition, the car's four air springs are controlled separately, and the internal gas will return to the air tank when compressed. When the degree of compression is too large, the air pressure in the air tank will be too high and damage will occur. At this time, the air tank needs to be vented and then the exhausted gas is extracted from the air, which increases the work of the air pump. In addition, too many air particulate impurities are extracted from the air, which can easily cause blockage of the pipeline, thereby affecting the use of the air suspension.

[0004] In view of the above problems, the present invention provides an intelligent adjustable air suspension system to solve the above problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solutions: an intelligent adjustable air suspension system, comprising:

[0006] Detection module, used for real-time detection of road conditions;

[0007] Air suspension module, used to adjust the vehicle's stability;

[0008] A control module, used to control the start and stop of the air suspension module;

[0009] Among them, the air suspension module is installed on the vehicle chassis and includes four air springs. The four air springs are respectively connected to a first control component, the first control component is connected to an air storage tank, the air storage tank is connected to a second control component, the four second control components are commonly connected to an adjustment component, the adjustment component is connected to a third control component, and the third control component is connected to an air pump.

[0010] Preferably, the initial set pressure thresholds of the first control component, the second control component and the third control component are different, and are divided into active control and passive control, and the regulating component is connected to the air, and the entry and exit of air are driven by the third control component and the air pump.

[0011] Preferably, the active control of the first control component, the second control component and the third control component is active opening and closing through a control module, and the passive control is passive opening and closing by the compression degree of the air spring.

[0012] Preferably, the air spring comprises:

[0013] The base is fixed on the chassis of the vehicle, and a flow opening is provided on the lower end surface thereof, and a pressing surface is provided on the upper end of the inner portion of the base;

[0014] a buffer tray, slidably disposed in the base, and having a diameter smaller than an inner diameter of the base;

[0015] a buffer spring connected between the buffer tray and the base, and sealing the buffer tray against the pressing surface;

[0016] The rubber bladder is fixed on the base, and an air outlet is formed on the lower end surface of the rubber bladder. The air outlet is communicated with the interior of the base and is located above the buffer tray.

[0017] The air inlet is arranged at the lower end of the rubber sac and is communicated with the interior of the base through a communicating pipe. The communicating pipe passes through the buffer tray and is slidably connected to the buffer tray.

[0018] Preferably, the first control component, the second control component and the third control component have the same structure, and the first control component includes:

[0019] A valve body, with pipes connected to both ends, one end of which is connected to the flow port of the air spring, and the other end of which is connected to the air storage bin. The valve body is provided with a first communication port and a second communication port, and the first communication port and the second communication port are arranged on different axes.

[0020] A pressing chamber fixed to the upper end surface of the valve body;

[0021] an upper sealing plate, slidably disposed in the pressing chamber;

[0022] a lower sealing plate, slidably disposed in the valve body, and a pressing spring is disposed between the upper sealing plate and the lower sealing plate;

[0023] a barrier column fixed to the lower end surface of the lower sealing plate;

[0024] The electromagnet is fixed in the valve body and is located below the barrier column.

[0025] Preferably, the barrier column includes a sealing section, which is in a truncated cone shape, with a sliding section fixed to its lower end surface, and the sliding section is a cylindrical structure, with a magnet fixed to its lower end surface, and the magnet corresponds to the electromagnet.

[0026] Preferably, the adjustment component includes:

[0027] The regulating chamber has a connecting port on its side wall, and the connecting port is connected to the gas storage chamber through a pipeline and a second control component;

[0028] The regulating airbag is coaxially fixed in the regulating chamber, and has a first contraction opening and a second contraction opening respectively at its upper and lower ends, and both the first contraction opening and the second contraction opening are connected to a third control component.

[0029] Compared with the prior art, the present invention provides an intelligent adjustable air suspension system with the following beneficial effects:

[0030] The present invention can enable the air spring to respond quickly on slightly bumpy road sections through passive control of the first control component, the second control component and the third control component, and can greatly reduce the frequency of use of the air pump to avoid overheating of the air pump. The height of the air spring can be actively adjusted through active control, and when the detection module monitors the road conditions in real time, the air spring can be adjusted in real time through the air pump to improve the vehicle's shock absorption effect. The adjustment component adjusts the volume of the adjustment chamber by adjusting the air discharged or entering the air bag, thereby controlling the flow direction of the internal gas and avoiding external air from clogging the pipe entering the adjustment chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A gas flow diagram of an intelligent adjustable air suspension system;

[0032] Figure 2 A schematic diagram of the structure of an air spring of an intelligent adjustable air suspension system;

[0033] Figure 3 is a schematic diagram of a first control component of an intelligent adjustable air suspension system;

[0034] Figure 4 A schematic diagram of the structure of an adjustment component of an intelligent adjustable air suspension system;

[0035] In the figure: 1. air spring; 2. first control component; 3. air storage chamber; 4. second control component; 5. adjustment component; 6. third control component; 7. air pump; 11. base; 12. circulation port; 13. buffer plate; 14. buffer spring; 15. pressing surface; 16. rubber bladder; 17. air outlet; 18. air inlet; 21. valve body; 22. pressing chamber; 23. upper sealing plate; 24. pressing spring; 25. lower sealing plate; 26. barrier column; 261. sealing section; 262. sliding section; 263. magnet; 27. electromagnet; 28. connecting port 1; 29. ​​connecting port 2; 51. adjustment chamber; 52. connecting port; 53. adjusting airbag; 54. contraction port 1; 55. contraction port 2. DETAILED DESCRIPTION

[0036] Reference Figures 1-4 The present invention provides a technical solution: an intelligent adjustable air suspension system, comprising:

[0037] Detection module, used for real-time detection of road conditions;

[0038] Air suspension module, used to adjust the vehicle's stability;

[0039] A control module, used to control the start and stop of the air suspension module;

[0040] In which, the air suspension module is installed on the vehicle chassis and includes four air springs 1. The four air springs 1 are respectively connected to a first control component 2, the first control component 2 is connected to an air storage tank 3, the air storage tank 3 is connected to a second control component 4, the four second control components 4 are commonly connected to an adjustment component 5, the adjustment component 5 is connected to a third control component 6, and the third control component 6 is connected to an air pump 7.

[0041] As a preferred embodiment, when the vehicle turns, the two air springs 1 on the same side can be adjusted synchronously through the control module, that is, the first control component 2, the second control component 4 and the third control component 6 located on the same side are opened through the control module, so that the adjustment component 5 can raise or lower the air spring 1. It should be noted that the opening and closing of multiple first control components 2, second control components 4 and third control components 6 can be controlled separately through the control module, so as to make corresponding adjustments according to various postures of the vehicle, thereby improving the degree of intelligence.

[0042] In this embodiment, the initial set pressure thresholds of the first control component 2, the second control component 4 and the third control component 6 are different, and are divided into active control and passive control, and the adjustment component 5 is connected to the air, and the entry and exit of air are driven by the third control component 6 and the air pump 7.

[0043] As a preferred embodiment, the active control of the first control component 2, the second control component 4 and the third control component 6 is active opening and closing through the control module, and the passive control is passive opening and closing by the compression degree of the air spring 1.

[0044] Among them, when actively controlled, its opening and closing is controlled by the control module. When passively controlled, when the gas in the air spring 1 is compressed, when the compression amount exceeds the pressure threshold of the first control component 2, the gas in the air spring 1 is released into the air storage bin 3. At this time, when the air spring 1 continues to be compressed, it reaches the pressure threshold of the second control component 4. At this time, the gas is released into the regulating component 5. When the pressure in the regulating component 5 reaches the pressure threshold of the third control component 6, the air in the regulating component 5 is discharged, and the air discharged from the regulating component 5 is not connected with the gas entering the regulating component 5 from the air storage bin 3, so as to avoid external air from clogging the pipeline entering the regulating component 5.

[0045] In this embodiment, the air spring 1 includes:

[0046] The base 11 is fixed on the vehicle chassis, and a flow opening 12 is provided on the lower end surface thereof. A pressing surface 15 is provided on the upper end of the inner portion of the base 11;

[0047] a buffer tray 13 slidably disposed in the base 11 and having a diameter smaller than the inner diameter of the base 11;

[0048] a buffer spring 14 connected between the buffer tray 13 and the base 11 and sealing the buffer tray 13 against the pressing surface 15;

[0049] The rubber bladder 16 is fixed to the base 11 and has an air outlet 17 on its lower end surface. The air outlet 17 is connected to the interior of the base 11 and is located above the buffer tray 13.

[0050] The air inlet 18 is provided at the lower end of the rubber bladder 16 and is communicated with the interior of the base 11 through a communicating pipe. The communicating pipe passes through the buffer tray 13 and is slidably connected to the buffer tray 13 .

[0051] It should be noted that the initial air pressure in the rubber bladder 16 and the base 11 is the same, and the diameter of the air outlet 17 is larger than the diameter of the air inlet 18. That is to say, when the rubber bladder 16 is compressed, the gas inside it is discharged through the air outlet 17 and the air inlet 18. At this time, more gas passes through the air outlet 17, causing an air pressure difference between the upper and lower parts of the buffer plate 13, thereby pushing the buffer plate 13 to slide, providing damping for the rubber bladder 16, and avoiding excessive ups and downs of the vehicle due to a rapid compression process. However, when the height of the rubber bladder 16 needs to be adjusted, the air pressure in the rubber bladder 16 is controlled through the air inlet 18.

[0052] As a preferred embodiment, the first control component 2, the second control component 4 and the third control component 6 have the same structure, and the first control component 2 includes:

[0053] The valve body 21 has pipes connected to its two ends, one end of which is connected to the flow port 12 of the air spring 1, and the other end is connected to the air storage bin 3. The valve body 21 has a first communication port 28 and a second communication port 29 formed inside. The first communication port 28 and the second communication port 29 are arranged on different axes.

[0054] A pressing chamber 22 is fixed to the upper end surface of the valve body 21;

[0055] An upper sealing plate 23 is slidably disposed in the pressing chamber 22;

[0056] A lower sealing plate 25 is slidably disposed in the valve body 21 , and a pressing spring 24 is disposed between the upper sealing plate 23 and the lower sealing plate 25 ;

[0057] a barrier column 26 fixed to the lower end surface of the lower sealing plate 25;

[0058] The electromagnet 27 is fixed in the valve body 21 and is located below the barrier column 26 .

[0059] That is, by injecting gas into the pressing chamber 22 , the degree of pressing on the pressing spring 24 can be adjusted, thereby adjusting the different pressure thresholds of the first control component 2 , the second control component 4 and the third control component 6 .

[0060] As a preferred embodiment, the blocking column 26 includes a sealing section 261, which is in the shape of a truncated cone, and a sliding section 262 is fixed on its lower end surface. The sliding section 262 is a cylindrical structure, and a magnet 263 is fixed on its lower end surface. The magnet 263 corresponds to the electromagnet 27.

[0061] That is to say, during active control, repulsive force is generated by energizing the electromagnet 27, thereby pushing the blocking column 26 to slide, so that the connecting port 1 28 and the connecting port 2 29 are connected. During passive control, the electromagnet 27 is in a non-energized state, and the sealing section 261 is pushed by gas pressure, so that the connecting port 1 28 and the connecting port 2 29 are connected.

[0062] It should be noted that when the compression degree of the air spring 1 is relatively small, the pressure generated by the gas compression is less than the threshold value of the first control component 2, and shock absorption is performed by the elasticity of the air spring 1 itself. When the gas compression pressure is greater than the threshold value of the first control component 2, the gas flows to the air storage bin 3 for pressure relief and buffering. At this time, the air pressure in the air storage bin 3 increases. When the air spring 1 rebounds, the gas can be transported back to the air spring 1 again to complete the internal circulation of the gas. However, after the gas in the air spring 1 continues to be compressed to the threshold value of the first control component 2, the airflow in the air storage bin 3 is relieved to the regulating component 5. At this time, the air pressure in the regulating component 5 increases, which can cause the gas to flow back, facilitating the rebound of the air spring 1. In other words, the initial pressures in the air spring 1, the air storage bin 3, and the regulating component 5 are the same, which facilitates the circulation of the gas.

[0063] In this embodiment, the adjustment component 5 includes:

[0064] The regulating chamber 51 has a connecting port 52 on its side wall, and the connecting port 52 is connected to the gas storage chamber 3 via a pipe and the second control component 4;

[0065] The regulating airbag 53 is coaxially fixed in the regulating chamber 51 , and has a first contraction opening 54 and a second contraction opening 55 at its upper and lower ends, respectively. Both the first contraction opening 54 and the second contraction opening 55 are connected to the third control component 6 .

[0066] That is to say, after the gas enters the regulating chamber 51, it will squeeze the regulating airbag 53. When the air spring 1 is about to rebound, the regulating airbag 53 will rebound synchronously, thereby pushing the gas to flow back. When the regulating airbag 53 is compressed to the limit, the contraction port 1 54 and the contraction port 2 55 will open the pressure relief through the third control component 6. At this time, when the air spring 1 is about to rebound, the pressure in the regulating airbag 53 is increased and expanded through the air pump 7.

[0067] Specifically, when the vehicle turns, the two air springs 1 on the same side can be adjusted synchronously through the control module, that is, the first control component 2, the second control component 4 and the third control component 6 on the same side are opened through the control module, so that the adjustment component 5 raises or lowers the air spring 1. It should be noted that the control module can control the opening and closing of multiple first control components 2, second control components 4 and third control components 6 respectively, so as to make corresponding adjustments according to the various postures of the vehicle, thereby improving the degree of intelligence.

[0068] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An intelligent adjustable air suspension system, characterized in that: include: Detection module, used for real-time detection of road conditions; Air suspension module, used to adjust the vehicle's stability; A control module, used to control the start and stop of the air suspension module; The air suspension module is installed on a vehicle chassis and includes four air springs (1), the four air springs (1) are respectively connected to a first control component (2), the first control component (2) is connected to an air storage bin (3), the air storage bin (3) is connected to a second control component (4), the four second control components (4) are commonly connected to an adjustment component (5), the adjustment component (5) is connected to a third control component (6), and the third control component (6) is connected to an air pump (7); The air spring (1) comprises: A base (11) is fixed on the vehicle chassis, and a flow opening (12) is provided on the lower end surface thereof. A pressing surface (15) is provided on the upper end of the interior of the base (11); a buffer tray (13) slidably disposed in the base (11), and having a diameter smaller than the inner diameter of the base (11); A buffer spring (14) is connected between the buffer disk (13) and the base (11) and seals the buffer disk (13) and the pressing surface (15); A rubber sac (16) is fixed on the base (11), and an air outlet (17) is provided on its lower end surface. The air outlet (17) is communicated with the interior of the base (11) and is located above the buffer tray (13); An air inlet (18) is provided at the lower end of the rubber sac (16) and is connected to the interior of the base (11) through a connecting pipe. The connecting pipe passes through the buffer disk (13) and is slidably connected to the buffer disk (13). The diameter of the air outlet (17) is larger than the diameter of the air inlet (18); When the rubber sac (16) is compressed, gas is discharged through the gas outlet (17) and the gas inlet (18), forming a pressure difference between the upper and lower parts of the buffer disk (13), pushing the buffer disk (13) to slide, and providing damping for the rubber sac (16).

2. The intelligent adjustable air suspension system according to claim 1, characterized in that: The initial set pressure thresholds of the first control component (2), the second control component (4) and the third control component (6) are different and are divided into active control and passive control. The regulating component (5) is connected to the air, and the air intake and exhaust are driven by the third control component (6) and the air pump (7).

3. The intelligent adjustable air suspension system according to claim 2, characterized in that: The active control of the first control component (2), the second control component (4) and the third control component (6) is active opening and closing through a control module, and the passive control is passive opening and closing according to the compression degree of the air spring (1).

4. The intelligent adjustable air suspension system according to claim 1, characterized in that: The first control component (2), the second control component (4) and the third control component (6) have the same structure, and the first control component (2) includes: A valve body (21) is connected to two ends of which are pipes, one end of which is in communication with the flow port (12) of the air spring (1), and the other end of which is in communication with the air storage bin (3). A first communication port (28) and a second communication port (29) are provided inside the valve body (21), and the first communication port (28) and the second communication port (29) are arranged on different axes. A pressing chamber (22) fixed to the upper end surface of the valve body (21); An upper sealing plate (23) is slidably disposed in the pressing chamber (22); A lower sealing plate (25) is slidably disposed in the valve body (21), and a pressing spring (24) is disposed between the upper sealing plate (23) and the lower sealing plate (25); A barrier column (26) fixed to the lower end surface of the lower sealing plate (25); The electromagnet (27) is fixed in the valve body (21) and is located below the barrier column (26).

5. The intelligent adjustable air suspension system according to claim 4, characterized in that: The barrier column (26) includes a sealing section (261), the sealing section (261) is in a truncated cone shape, and a sliding section (262) is fixed to its lower end surface. The sliding section (262) is a columnar structure, and a magnet (263) is fixed to its lower end surface. The magnet (263) corresponds to the electromagnet (27).

6. The intelligent adjustable air suspension system according to claim 1, characterized in that: The regulating component (5) comprises: The regulating chamber (51) has a connecting port (52) on its side wall, and the connecting port (52) is connected to the gas storage chamber (3) via a pipeline and a second control component (4); The regulating airbag (53) is coaxially fixed in the regulating chamber (51), and has a first shrinkage opening (54) and a second shrinkage opening (55) at its upper and lower ends, respectively. The first shrinkage opening (54) and the second shrinkage opening (55) are both connected to a third control component (6).

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