Intelligent adjusting type air suspension system

Abstract

The invention discloses an intelligent adjusting type air suspension system, and relates to the technical field of automobile suspensions, the intelligent adjusting type air suspension system comprises a detection module used for real-time detection of road conditions; the air suspension module is used for adjusting the stability of the vehicle; the control module is used for controlling start and stop of the air suspension module; the air suspension module is installed on a vehicle chassis and comprises four air springs, the four air springs are communicated with first control assemblies respectively, the first control assemblies are communicated with air storage bins, the air storage bins are communicated with second control assemblies, the four second control assemblies are jointly communicated with an adjusting assembly, and the adjusting assembly is communicated with a vehicle chassis. The adjusting assembly communicates with a third control assembly, and the third control assembly communicates with an air pump. The height of the air spring can be actively adjusted through active control, the air spring can be adjusted in real time through the air pump when the road condition is monitored in real time through the detection module, and the vehicle shock absorption effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive suspensions, and specifically to an intelligent adjustable air suspension system. Background Art

[0002] An air suspension system (Air Suspension System) is an intelligent suspension system that adjusts the vehicle body height and suspension stiffness through compressed air. It mainly consists of an air supply component, an air spring, a control unit, and sensors. Each component works together to achieve functions such as automatic leveling, height adjustment, and damping control.

[0003] In the existing air suspension system, the air pump is used too frequently. Especially on bumpy roads, it is easy to cause the air pump to overheat, affecting its use. And the four air springs of the vehicle are controlled separately. When the gas inside is compressed, it will return to the air storage tank. When the compression degree is too large, the air pressure in the air storage tank will be too high, resulting in damage. At this time, the air storage tank needs to be exhausted, and then air is extracted from the air to make up for the exhausted gas. This increases the work of the air pump, and there are too many air particulate impurities extracted from the air, which is easy to cause blockage of the pipeline, thus 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 object, the present invention provides the following technical solution: An intelligent adjustable air suspension system, comprising: A detection module for real-time detection of road conditions; An air suspension module for adjusting the stability of the vehicle; 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 includes four air springs. A first control component is respectively connected to the four air springs. A gas storage chamber is connected to the first control component. A second control component is connected to the gas storage chamber. An adjustment component is commonly connected to the four second control components. A third control component is connected to the adjustment component. An air pump is connected to the third control component.

[0006] 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 adjustment component is connected to the air, and the entry and exit of the air are driven by the third control component and the air pump.

[0007] 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.

[0008] Preferably, the air spring comprises: 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; a buffer tray, slidably disposed in the base, and having a diameter smaller than an inner diameter of the base; a buffer spring connected between the buffer tray and the base, and sealing the buffer tray against the pressing surface; 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. 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.

[0009] Preferably, the first control component, the second control component and the third control component have the same structure, and the first control component includes: 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. A pressing chamber fixed to the upper end surface of the valve body; an upper sealing plate, slidably disposed in the pressing chamber; 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; a barrier column fixed to the lower end surface of the lower sealing plate; The electromagnet is fixed in the valve body and is located below the barrier column.

[0010] 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.

[0011] Preferably, the adjustment component includes: 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; 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.

[0012] Compared with the prior art, the present invention provides an intelligent adjustable air suspension system, which has the following beneficial effects: Through the passive control of the first control component, the second control component and the third control component, the air spring of the present invention can respond quickly on roads with small bumps, and can greatly reduce the usage frequency of the air pump, avoiding overheating of the air pump. Through active control, the height of the air spring can be actively adjusted, 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, improving the vehicle shock absorption effect. Moreover, the adjustment component adjusts the volume in the adjustment chamber by discharging or introducing air into the adjustment airbag, thereby controlling the flow direction of the internal gas and preventing external air from blocking the pipeline when entering the adjustment chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the gas flow of an intelligent adjustable air suspension system; Figure 2 It is a schematic structural diagram of the air spring of an intelligent adjustable air suspension system; Figure 3 It is a schematic diagram of the first control component of an intelligent adjustable air suspension system; Figure 4 It is a schematic structural diagram of the adjustment component of an intelligent adjustable air suspension system; 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, communication port one; 29, communication port two; 51, adjustment chamber; 52, connection port; 53, adjustment airbag; 54, contraction port one; 55, contraction port two. DETAILED DESCRIPTION OF THE INVENTION

[0014] Referring to Figures 1 - 4 , the present invention provides a technical solution: an intelligent adjustable air suspension system, including: A detection module for detecting road conditions in real time; An air suspension module for adjusting the stability of the vehicle; A control module for controlling the start and stop of the air suspension module; Among them, the air suspension module is installed on the vehicle chassis and includes four air springs 1. A first control assembly 2 is respectively connected to each of the four air springs 1. A gas storage chamber 3 is connected to the first control assembly 2. A second control assembly 4 is connected to the gas storage chamber 3. An adjustment assembly 5 is commonly connected to the four second control assemblies 4. A third control assembly 6 is connected to the adjustment assembly 5. An air pump 7 is connected to the third control assembly 6.

[0015] As a preferred embodiment, when the vehicle turns, at this time, the control module can synchronously adjust the two air springs 1 on the same side. That is to say, by controlling the module to turn on the first control assembly 2, the second control assembly 4, and the third control assembly 6 on the same side, so that the adjustment assembly 5 can raise or lower the air spring 1. It should be noted that the control module can respectively control the opening and closing of multiple first control assemblies 2, second control assemblies 4, and third control assemblies 6, so as to perform corresponding adjustments according to various postures of the vehicle, improving the degree of intelligence.

[0016] In this embodiment, the initial set pressure thresholds of the first control assembly 2, the second control assembly 4, and the third control assembly 6 are different, and are divided into active control and passive control. And the adjustment assembly 5 is connected to the air, and the entry and discharge of air are driven by the third control assembly 6 and the air pump 7.

[0017] As a preferred embodiment, the active control of the first control assembly 2, the second control assembly 4, and the third control assembly 6 is to actively open and close through the control module, and the passive control is to passively open and close according to the compression degree of the air spring 1.

[0018] Among them, when in active control, its opening and closing are controlled by the control module. When in passive control, when the gas in the air spring 1 is compressed and the compression amount exceeds the pressure threshold of the first control assembly 2, the gas in the air spring 1 is released to the gas storage chamber 3. At this time, when the air spring 1 is continuously compressed and reaches the pressure threshold of the second control assembly 4, the gas is released to the adjustment assembly 5. When the pressure in the adjustment assembly 5 reaches the pressure threshold of the third control assembly 6, the air in the adjustment assembly 5 is discharged, and the air discharged from the adjustment assembly 5 is not connected to the gas entering the adjustment assembly 5 from the gas storage chamber 3, avoiding the blockage of the pipeline by external air entering the adjustment assembly 5.

[0019] In this embodiment, the air spring 1 includes: A base 11, fixed on the vehicle chassis, with a circulation port 12 opened on its lower end surface, and an inclined pressing surface 15 is opened at the upper end inside the base 11; A buffer plate 13, slidably arranged in the base 11, and its diameter is smaller than the inner diameter of the base 11; A buffer spring 14 is connected between the buffer disc 13 and the base 11, and the buffer disc 13 is attached and sealed to the pressing surface 15; A rubber bladder 16 is fixed on the base 11. An air outlet 17 is formed in the lower end surface of the rubber bladder 16. The air outlet 17 is communicated with the inside of the base 11 and is located above the buffer disc 13; An air inlet 18 is formed in the lower end of the rubber bladder 16 and is communicated with the inside of the base 11 by a connecting pipe. The connecting pipe penetrates through the buffer disc 13 and is slidably connected to the buffer disc 13.

[0020] It should be noted that the initial air pressures in the rubber bladder 16 and the base 11 are the same, and the diameter of the air outlet 17 is larger than that 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, creating an air pressure difference above and below the buffer disc 13, thereby pushing the buffer disc 13 to slide and providing damping for the rubber bladder 16 to prevent the vehicle from rising and falling too much during the compression process. However, when the height of the rubber bladder 16 needs to be adjusted, the air pressure inside the rubber bladder 16 is controlled through the air inlet 18.

[0021] As a preferred embodiment, the structures of the first control component 2, the second control component 4, and the third control component 6 are the same. The first control component 2 includes: A valve body 21, with pipes connected to both ends thereof. One end is communicated with the communication port 12 of the air spring 1, and the other end is communicated with the air storage chamber 3. A communication port one 28 and a communication port two 29 are formed inside the valve body 21, and the communication port one 28 and the communication port two 29 are arranged non - coaxially; A pressing chamber 22 is fixed on the upper end surface of the valve body 21; An upper sealing plate 23 is slidably arranged in the pressing chamber 22; A lower sealing plate 25 is slidably arranged inside the valve body 21, and a pressing spring 24 is arranged between the upper sealing plate 23 and the lower sealing plate 25; A barrier post 26 is fixed on the lower end surface of the lower sealing plate 25; An electromagnet 27 is fixed inside the valve body 21 and is located below the barrier post 26.

[0022] That is to say, by injecting gas into the pressing chamber 22, the pressing degree 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.

[0023] As a preferred embodiment, the barrier column 26 includes a sealing section 261. The sealing section 261 is frustum-shaped, and a sliding section 262 is fixed to its lower end surface. The sliding section 262 is a cylindrical structure, and a magnet 263 is fixed to its lower end surface. The magnet 263 corresponds to the electromagnet 27.

[0024] That is to say, during active control, a repulsive force is generated by the energization of the electromagnet 27, thereby pushing the barrier column 26 to slide, so that the first communication port 28 and the second communication port 29 are communicated. During passive control, at this time, the electromagnet 27 is in a non-energized state, and the sealing section 261 is pushed by gas pressure, so that the first communication port 28 and the second communication port 29 are communicated.

[0025] It should be noted that when the compression degree of the air spring 1 is small, the pressure generated by gas compression at this time is less than the threshold value of the first control assembly 2, and shock absorption is carried out through the elasticity of the air spring 1 itself. When the gas compression pressure is greater than the threshold value of the first control assembly 2, the gas flows into the air storage chamber 3 for pressure relief and buffering. At this time, the air pressure in the air storage chamber 3 increases. When the air spring 1 rebounds, the gas can be conveyed back into 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 assembly 2, the air flow in the air storage chamber 3 is depressurized into the adjustment assembly 5. At this time, the air pressure in the adjustment assembly 5 increases, which can cause the gas to flow back, facilitating the rebound of the air spring 1. That is to say, the initial pressures in the air spring 1, the air storage chamber 3, and the adjustment assembly 5 are the same, facilitating the circulation of the gas.

[0026] In this embodiment, the adjustment assembly 5 includes: An adjustment chamber 51, with a connection port 52 opened on its side wall. The connection port 52 is communicated with the air storage chamber 3 through a pipeline and the second control assembly 4; An adjustment airbag 53, coaxially fixed in the adjustment chamber 51, and a first contraction port 54 and a second contraction port 55 are respectively opened at its upper and lower ends. The first contraction port 54 and the second contraction port 55 are both connected with a third control assembly 6.

[0027] That is to say, after the gas enters the adjustment chamber 51, it will squeeze the adjustment airbag 53. When the air spring 1 is about to rebound, at this time, the adjustment airbag 53 rebounds synchronously, thereby pushing the gas to flow back. When the adjustment airbag 53 is compressed to the limit, the first contraction port 54 and the second contraction port 55 are opened for pressure relief through the third control assembly 6. At this time, when the air spring 1 is about to rebound, the adjustment airbag 53 is pressurized and inflated through the air pump 7.

[0028] Specifically, when the vehicle turns, the control module can synchronously adjust the two air springs 1 on the same side. That is, the control module turns on the first control component 2, the second control component 4, and the third control component 6 on the same side, so that the adjustment component 5 raises or lowers the air spring 1. It should be noted that the control module can separately control the opening and closing of multiple first control components 2, second control components 4, and third control components 6, so as to perform corresponding adjustments according to various postures of the vehicle and improve the degree of intelligence.

[0029] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An intelligent adjustable air suspension system, characterized in that, Including: A detection module for real-time detection of road conditions; An air suspension module for adjusting the stability of the vehicle; A control module for controlling the start and stop of the air suspension module; Among them, the air suspension module is installed on the vehicle chassis and includes four air springs (1). A first control component (2) is respectively connected to each of the four air springs (1). A gas storage chamber (3) is connected to the first control component (2). A second control component (4) is connected to the gas storage chamber (3). An adjustment component (5) is commonly connected to the four second control components (4). A third control component (6) is connected to the adjustment component (5). An air pump (7) is connected to the third control component (6).

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. And the adjustment component (5) is connected to the air, and the entry and discharge of air are driven by the third control component (6) and the air pump (7).

3. An 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 to actively open and close through the control module, and the passive control is to passively open and close according to the compression degree of the air spring (1).

4. An intelligent adjustable air suspension system according to claim 1, characterized in that, The air spring (1) includes: A base (11) fixed on the vehicle chassis, with a circulation port (12) opened on its lower end surface, and a pressing surface (15) inclinedly opened at the upper end inside the base (11); A buffer disc (13) slidably arranged inside the base (11), and its diameter is smaller than the inner diameter of the base (11); A buffer spring (14) connected between the buffer disc (13) and the base (11), and fitting and sealing the buffer disc (13) with the pressing surface (15); A rubber bladder (16) fixed on the base (11), with an air outlet (17) opened on its lower end surface, and the air outlet (17) is communicated with the inside of the base (11) and is located above the buffer disc (13); An air inlet (18) opened at the lower end of the rubber bladder (16) and communicated with the inside of the base (11) by a connecting pipe. The connecting pipe penetrates through the buffer disc (13) and is slidably connected to the buffer disc (13).

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

6. An intelligent adjustable air suspension system according to claim 5, characterized in that, The barrier column (26) includes a sealing section (261). The sealing section (261) is frustum-shaped, and a sliding section (262) is fixed to its lower end face. The sliding section (262) is a cylindrical structure, and a magnet (263) is fixed to its lower end face. The magnet (263) corresponds to the electromagnet (27).

7. An intelligent adjustable air suspension system according to claim 1, characterized in that, The adjusting assembly (5) includes: An adjusting chamber (51), with a connection port (52) opened on its side wall. The connection port (52) is communicated with the gas storage chamber (3) by a pipeline and the second control assembly (4); An adjusting airbag (53) is coaxially fixed inside the adjusting chamber (51), and a first contraction port (54) and a second contraction port (55) are respectively opened at its upper and lower ends. The first contraction port (54) and the second contraction port (55) are both connected with a third control assembly (6).

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