Air supply system of air suspension, air suspension assembly and vehicle

Abstract

The utility model provides an air supply system of an air suspension, an air suspension assembly and a vehicle. The air supply system comprises an air storage tank, a first pipeline and an air compression device. The first end of the first pipeline is connected to the air storage tank, and the second end of the first pipeline is suitable for being connected to an air spring. The air compression device comprises an air outlet mechanism, and the air outlet mechanism is connected to the first pipeline through a first one-way valve so that air can flow to the air spring from the air compression device. According to the air supply system of the air suspension, air can be prevented from entering the air compression device when the air storage tank directly supplies air to the air spring, waste of compressed air cannot be caused, the pressurization time of the air spring is prevented from being prolonged, and the use experience of the air spring is improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of automobile chassis, and more specifically relates to an air supply system of an air suspension, an air suspension assembly and a vehicle. Background Art

[0002] At present, in the air supply system of the air suspension in the prior art, when the air tank supplies air to the air spring, the gas discharged from the air tank will pass through the air compressor, which will not only cause waste of compressed air, but also prolong the pressurization time of the air suspension and reduce the user experience of the air suspension. Utility Model Content

[0003] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0004] In order to at least partially solve the above problems, the utility model provides an air supply system for an air suspension in a first aspect, the air supply system for the air suspension comprising:

[0005] gas tank;

[0006] a first pipeline, a first end of the first pipeline being connected to the air storage tank, and a second end of the first pipeline being suitable for being connected to an air spring;

[0007] An air compressor device comprises an air outlet mechanism, wherein the air outlet mechanism is connected to the first pipeline via a one-way valve so that gas can flow from the air compressor device to the air spring.

[0008] According to the air supply system of the air suspension of the first aspect of the utility model, the compressed air in the air tank can be transmitted to the air spring through the first pipeline, and the setting of the first one-way valve can prevent the gas in the air tank from entering the air compressor when the air is directly supplied to the air spring, which will not cause waste of compressed air, thereby preventing the pressurization time of the air spring from being extended and improving the use experience of the air spring.

[0009] Optionally, the air supply system also includes a second two-way valve and a third two-way valve, the second two-way valve is arranged in the first pipeline, and the second two-way valve is arranged between the air outlet mechanism and the air storage tank; the third two-way valve is arranged in the first pipeline, and the third two-way valve is suitable for being arranged between the air outlet mechanism and the air spring.

[0010] Optionally, a connection point between the air outlet mechanism and the first pipeline is located between the second two-way valve and the third two-way valve.

[0011] Optionally, the air supply system further comprises a second pipeline, a first end of the second pipeline is suitable for being connected to the air spring, and a second end of the second pipeline is connected to the air tank.

[0012] Optionally, the air compression device further includes an air intake mechanism, and the air intake mechanism is connected to the second pipeline.

[0013] Optionally, the air supply system includes a first two-way valve and a fourth two-way valve, the first two-way valve is arranged in the second pipeline and between the air intake mechanism and the air storage tank, and the fourth two-way valve is arranged in the second pipeline and between the air intake mechanism and the air spring.

[0014] Optionally, a connection between the air intake mechanism and the second pipeline is located between the first two-way valve and the fourth two-way valve.

[0015] Optionally, the air outlet mechanism includes a dryer, and the dryer is connected to the one-way valve and the first pipeline respectively.

[0016] Optionally, the air supply system further includes a discharge pipeline and a fifth two-way valve, wherein the fifth two-way valve is arranged in the discharge pipeline, a first end of the discharge pipeline is connected between the one-way valve and the dryer, and a second end of the discharge pipeline is suitable for being connected to the outside.

[0017] Optionally, the gas supply system further comprises an air supply pipeline, a first end of which is suitable for being connected to an external gas source, and a second end of which is connected to the gas storage tank.

[0018] A second aspect of the utility model provides an air suspension assembly, comprising an air supply system and an air spring according to the above-mentioned air suspension.

[0019] According to the air suspension assembly of the second aspect of the utility model, when the air tank directly supplies air to the air spring, no waste of compressed air is caused, thereby preventing the pressurization time of the air suspension assembly from being prolonged and improving the user experience of the air suspension assembly.

[0020] A third aspect of the utility model provides a vehicle, comprising the air suspension assembly according to the above.

[0021] The vehicle according to the third aspect of the utility model has an air suspension assembly with a short pressurization time, which improves the user experience of the air suspension assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0023] Figure 1 A schematic diagram of the layout of an air suspension according to a first preferred embodiment of the utility model; and

[0024] Figure 2 This is a schematic diagram of the layout of the air suspension of the second preferred embodiment of the utility model.

[0025] Description of Reference Numerals

[0026] 100: Air spring 101: Air suspension valve

[0027] 110: Gas tank 120: Air compressor

[0028] 121: Air compressor 122: Dryer

[0029] 123: First one-way valve 124: Second one-way valve

[0030] 130: First pipeline 140: Second pipeline

[0031] 141: First two-way valve 131: Second two-way valve

[0032] 132: Third two-way valve 142: Fourth two-way valve

[0033] 150: Discharge line 151: Fifth two-way valve

[0034] 160: Air supply pipeline 161: The third one-way valve

[0035] 170: External air source 180: Pressure sensor

[0036] 190: Third pipeline 290: Gas storage pipeline

[0037] 291: Sixth two-way valve DETAILED DESCRIPTION

[0038] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some technical features known in the art are not described.

[0039] In this document, ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0040] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0041] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0042] Unless otherwise stated, the numerical ranges herein include not only the entire range within its two endpoints but also include several sub-ranges contained therein.

[0043] The following combination Figure 1 and Figure 2 The air supply system of the air suspension according to the utility model is described in two embodiments.

[0044] First embodiment

[0045] Figure 1 The air supply system of an air suspension according to the first embodiment is shown, comprising an air tank 110, a first pipeline 130 and an air compressor 120. A first end of the first pipeline 130 is connected to the air tank 110, and a second end of the first pipeline 130 is suitable for being connected to an air spring 100. The air compressor 120 comprises an air outlet mechanism, which is connected to the first pipeline 130 via a first one-way valve 123, so that gas can flow from the air compressor 120 to the air spring 100.

[0046] According to the air supply system of the air suspension of the first embodiment, the compressed air in the air tank 110 can be transmitted to the air spring 100 through the first pipeline 130, and the setting of the first one-way valve 123 can prevent the gas from entering the air compressor 120 when the air tank 110 directly supplies air to the air spring 100, which will not cause waste of compressed air, thereby preventing the pressurization time of the air spring 100 from being extended, and improving the use experience of the air spring 100.

[0047] Reference Figure 1The air compressor 120 includes an air compressor 121, and the air compressor 120 includes an air intake mechanism, which is configured as an air intake port of the air compressor 121 and is used to be connected to an external air source 170. The air outlet mechanism of the air compressor 120 includes an air outlet of the air compressor 121 and a dryer 122, and the air outlet is connected to the dryer 122, and the dryer 122 is connected to the first pipeline 130, so as to dry the compressed air generated by the air compressor 121. The first one-way valve 123 is arranged between the dryer 122 and the air outlet of the air compressor 121, and is used to prevent the compressed air transmitted from the air storage tank 110 to the first pipeline 130 from entering the air compressor 121. Optionally, the air inlet of the air compressor 121 is provided with a second one-way valve 124, so as to prevent the gas in the air supply system from overflowing.

[0048] Reference Figure 1 According to the utility model, the air supply system of the air suspension also includes four air suspension valves 101 and a third pipeline 190. The four air suspension valves 101 are respectively connected to the four air springs 100 of the whole vehicle, and the four air suspension valves 101 are all connected to the third pipeline 190, and the third pipeline 190 is connected to the second end of the first pipeline 130, so that the compressed gas in the first pipeline 130 can be transmitted to the air spring 100 through the air suspension valve 101.

[0049] Reference Figure 1 The air supply system further includes a second two-way valve 131, which is disposed in the first pipeline 130, and is disposed between the air outlet of the air compressor 121 and the air storage tank 110, and the air inlet of the air compressor 121 is suitable for communicating with the external air source 170. When the air compressor 121 is started and the second two-way valve 131 is opened, the air compressor 121 compresses the air and transmits it to the air storage tank 110 through the first pipeline 130 and the second two-way valve 131, so as to realize the inflation and storage of the air storage tank 110.

[0050] Reference Figure 1 The air supply system further includes a third two-way valve 132, which is disposed in the first pipeline 130 and between the air outlet mechanism and the air spring 100. When the air compressor 121 inflates the air storage tank 110, the third two-way valve 132 is closed to prevent the compressed air generated by the air compressor 121 from entering the air spring 100. In addition, when the air storage tank 110 supplies air to the air spring 100 alone, the second two-way valve 131 and the third two-way valve 132 are opened, so that the first pipeline 130 is conducted, so that the compressed gas in the air storage tank 110 can be transmitted to the air spring 100, thereby realizing the lifting of the air spring 100.

[0051] like Figure 1As shown, the connection between the air outlet mechanism of the air compressor 120 and the first pipeline 130 is located between the second two-way valve 131 and the third two-way valve 132, so that the air intake mechanism of the air compressor 120 can be controlled to flow to the air spring 100 and the air tank 110 separately.

[0052] Optionally, the air supply system also includes a second pipeline 140, a first end of the second pipeline 140 is connected to the air spring 100 through a third pipeline 190, and a second end of the second pipeline 140 is connected to the air tank 110. The second pipeline 140 is configured to discharge the air of the air spring 100 directly to the air tank 110.

[0053] Furthermore, the air inlet (i.e., the air intake mechanism) of the air compressor 121 is connected to the second pipeline 140, so that the air in the air tank 110 and the air spring 100 can enter the air compressor 121 through the second pipeline 140. The air supply system also includes a first two-way valve 141, which is arranged between the air tank 110 and the air intake mechanism of the air compressor 120. When the first two-way valve 141 is closed, the gas exhausted from the air spring 100 enters the air compressor 121 through the second pipeline 140, and after being pressurized by the air compressor 121, it returns to the air tank 110 through the first one-way valve 123, the dryer 122, the second two-way valve 131 and the first pipeline 130 in sequence, thereby realizing the pressurized exhaust of the air spring 100.

[0054] Furthermore, the air supply system further includes a fourth two-way valve 142, which is disposed in the second pipeline 140 and between the air inlet of the air compressor 121 and the air spring 100. When the fourth two-way valve 142 is closed, the compressed air in the first pipeline 130 can be prevented from entering the second pipeline 140 when being transmitted to the air spring 100, thereby maintaining the pressure of the compressed air in the first pipeline 130. When the fourth two-way valve 142 is opened and the third two-way valve 132 is closed, the gas discharged from the air spring 100 can enter the air intake mechanism of the air compressor 120 through the second pipeline 140. The connection between the air intake mechanism of the air compressor 120 and the second pipeline 140 is located between the first two-way valve 141 and the fourth two-way valve 142, so that the air in the air spring 100 and the air storage tank 110 can be controlled to enter the air compressor 121 separately.

[0055] Optionally, the air supply system further includes an exhaust pipeline 150 and a fifth two-way valve 151, wherein the fifth two-way valve 151 is disposed in the exhaust pipeline 150, wherein a first end of the exhaust pipeline 150 is connected between the first one-way valve 123 and the dryer 122, and a second end of the exhaust pipeline 150 is connected to the outside. When the air in the air supply system needs to be exhausted (for example, when the air in the air supply system needs to be dried or replaced), the fifth two-way valve 151 is opened to exhaust the gas in the air supply system.

[0056] Optionally, the gas supply system further includes an air supply pipeline 160 , a first end of which is suitable for being connected to an external gas source 170 , and a second end of which is connected to the gas storage tank 110 , so that the gas storage tank 110 can be supplemented with gas.

[0057] Optionally, by Figure 1 It can be seen from the gas supply system that the gas supply pipeline 160 is provided with a third one-way valve 161, and the third one-way valve 161 is used to prevent the gas in the gas supply system from overflowing.

[0058] The first two-way valve 141 , the second two-way valve 131 , the third two-way valve 132 , the fourth two-way valve 142 and the fifth two-way valve 151 may all be two-way solenoid valves, thereby realizing automatic control of the gas supply system.

[0059] Optionally, the first pipeline 130 is further provided with a pressure sensor 180 for real-time detection of the gas pressure of the first pipeline 130. In addition, both the air spring 100 and the air storage tank 110 may be provided with a pressure sensor 180 for detecting the air pressure.

[0060] In summary, the gas supply system according to the first embodiment has multiple functions, which are described in sequence below (to simplify the description, the valve body not described is in the closed state by default when a certain function is realized).

[0061] 1. The air compressor 121 inflates and stores air in the air storage tank 110.

[0062] The air compressor 121 compresses the air and transmits it to the air storage tank 110 through the first one-way valve 123, the dryer 122, and the second two-way valve 131 in sequence. After the air storage is completed, the second two-way valve 131 is closed.

[0063] 2. The air tank 110 directly inflates the air spring 100 to achieve lifting.

[0064] The air suspension valve 101 of each air spring 100 is opened, the second two-way valve 131 and the third two-way valve 132 are opened, and the compressed air in the air tank 110 is transmitted to each air spring 100 through the first pipeline 130 and the third pipeline 190 to achieve the lifting of the air spring 100.

[0065] 3. The air compressor 121 inflates the air spring 100 to achieve lifting.

[0066] The air suspension valve 101 and the third two-way valve 132 are opened, and the compressed gas generated by the start-up of the air compressor 121 is transmitted to each air spring 100 through the first pipeline 130 and the third pipeline 190 to achieve the lifting of the air spring 100.

[0067] 4. The external gas source 170 (generally a high-pressure gas cylinder or a pressurized gas line) directly replenishes air to the gas storage tank 110 through the gas replenishment pipeline 160.

[0068] 5. The air spring 100 is directly exhausted.

[0069] 1) The air suspension valve 101, the fourth two-way valve 142 and the fifth two-way valve 151 are opened, and the gas of the air spring 100 passes through the third pipeline 190 and the second pipeline 140, and then passes through the air compressor 121 and the first one-way valve 123 into the discharge pipeline 150, and is discharged through the fifth two-way valve 151;

[0070] 2) The air suspension valve 101 , the third two-way valve 132 and the fifth two-way valve 151 are opened, and the gas in the air spring 100 enters the discharge pipeline 150 through the third pipeline 190 , the first pipeline 130 and the dryer 122 , and is discharged through the fifth two-way valve 151 .

[0071] 6. The air spring 100 is exhausted, pressurized and stored in the air storage tank 110 .

[0072] The air suspension valve 101, the fourth two-way valve 142 and the second two-way valve 131 are opened, and the gas of the air spring 100 passes through the third pipeline 190 and the second pipeline 140, and then is pressurized by the air compressor 121 and transmitted to the air storage tank 110 through the first pipeline 130, and then the second two-way valve 131 is closed.

[0073] 7. The air spring 100 directly exhausts the gas to the air storage tank 110 for storage.

[0074] When the air pressure of the air spring 100 is significantly greater than the air pressure of the gas tank 110 , the air suspension valve 101 , the fourth two-way valve 142 and the first two-way valve 141 are opened, so that the gas in the air spring 100 is discharged to the gas tank 110 through the third pipeline 190 and the second pipeline 140 .

[0075] 8. Read the system pressure.

[0076] The air suspension valve 101 , the second two-way valve 131 and the third two-way valve 132 are opened, and the air pressure is detected by the pressure sensor 180 .

[0077] 9. The excess pressure gas in the gas tank rises by 110%.

[0078] Open the air suspension valve 101, the first two-way valve 141 and the third two-way valve 132, and turn on the air compressor 121, so that the air inlet of the air compressor 121 can receive the external air source 170 and the residual pressure gas in the air tank 110, and transmit it to the air spring 100 under pressure, thereby shortening the pressurization time of the air compressor 121.

[0079] 10. Remove moisture from the air supply system.

[0080] Open the air suspension valve 101, the second two-way valve 131 and the fifth two-way valve 151, and connect the air supply pipeline 160 to the external air source 170, so that the gas filled into the first pipeline 130 passes through the dryer 122 and the fifth two-way valve 151 and is discharged from the exhaust pipeline 150, thereby allowing the moisture in the dryer 122 to be discharged from the air supply system.

[0081] According to the air supply system of the first embodiment, since the process of direct pressurization of the external air source 170 is reduced, the adverse effects caused by the accumulation of external air moisture in the air supply system can be reduced. At the same time, the reliability of the entire air supply system can be improved, and the response speed of the air supply system can be improved, thereby shortening the use time of the air compressor 121, extending the life cycle of the overall system, and reducing the use cost.

[0082] In addition, the air supply system according to the first embodiment not only realizes the recompression of the low-pressure gas in the air tank 110 and completes the rapid response pressurization of the air spring 100, but also realizes the recycling of the residual energy of the compressed gas in the air spring 100 and the recycling of the low-pressure gas in the air supply system, thereby achieving the effect of reducing energy consumption and reducing noise.

[0083] Second embodiment

[0084] Figure 2 The air supply system of an air suspension according to the second embodiment is shown to include an air tank 110, a first pipeline 130, an air compressor 120, and a first two-way valve 141. The first end of the first pipeline 130 is connected to the air tank 110, and the second end of the first pipeline 130 is suitable for being connected to the air spring 100. The air compressor 120 includes an air intake mechanism and an air outlet mechanism, the air intake mechanism is connected to the air tank 110, the air outlet mechanism is provided with a first one-way valve 123 and is suitable for being connected to the first pipeline 130, and the air intake mechanism is connected to the air tank 110. The first two-way valve 141 is provided between the air tank 110 and the air intake mechanism.

[0085] According to the air supply system of the air suspension of the second embodiment, the compressed air in the air tank 110 can be transmitted to the air spring 100 through the first pipeline 130, and the air tank 110 can also be pressurized by the air compressor 120 and then transmitted to the air spring 100 through the first pipeline 130. The first one-way valve 123 and the first two-way valve 141 can prevent the gas from entering the air compressor 120 when the air tank 110 directly supplies air to the air spring 100, which will not cause waste of compressed air, thereby preventing the extension of the pressurization time of the air suspension and improving the use experience of the air suspension.

[0086] Reference Figure 2The air compressor 120 includes an air compressor 121, and the air intake mechanism is configured as an air intake port of the air compressor 121, which is used to be connected to an external air source 170. The air outlet mechanism of the air compressor 120 includes an air outlet of the air compressor 121 and a dryer 122, and the air outlet is connected to the dryer 122, and the dryer 122 is connected to the first pipeline 130, so as to dry the compressed air generated by the pressurization of the air compressor 121. The first one-way valve 123 is arranged between the dryer 122 and the air outlet of the air compressor 121, and is used to prevent the compressed air transmitted from the air storage tank 110 to the first pipeline 130 from entering the air compressor 121. Optionally, the air intake port of the air compressor 121 is provided with a second one-way valve 124, so as to prevent the gas in the air supply system from overflowing.

[0087] Reference Figure 2 According to the utility model, the air supply system of the air suspension also includes four air suspension valves 101 and a third pipeline 190. The four air suspension valves 101 are respectively connected to the four air springs 100 of the whole vehicle, and the four air suspension valves 101 are all connected to the third pipeline 190, and the third pipeline 190 is connected to the second end of the first pipeline 130, so that the compressed gas in the first pipeline 130 can be transmitted to the air spring 100 through the air suspension valve 101.

[0088] Reference Figure 2 The first pipeline 130 is provided with a second two-way valve 131 and a third two-way valve 132. The second two-way valve 131 is provided between the third two-way valve 132 and the air storage tank 110. The second two-way valve 131 and the third two-way valve 132 are used to open and close the gas in the first pipeline 130 and switch the gas path. When the second two-way valve 131 and the third two-way valve 132 and the air suspension valve 101 are all opened, the compressed air in the air storage tank 110 is transmitted to the air spring 100 through the first pipeline 130 and the third pipeline 190, thereby lifting the air spring 100.

[0089] Reference Figure 2 The air supply system further includes an air storage pipeline 290, which is provided with a sixth two-way valve 291. The first end of the air storage pipeline 290 is connected to the first pipeline 130, and the second end of the air storage pipeline 290 is connected to the air outlet mechanism. Specifically, the first end of the air storage pipeline 290 is arranged between the air storage tank 110 and the second two-way valve 131, and the second end of the air storage pipeline 290 is arranged between the dryer 122 and the first one-way valve 123. When the sixth two-way valve 291 is opened, the compressed air generated by the start-up of the air compressor 121 enters the air storage tank 110 through the air storage pipeline 290, and after the air storage is completed, the sixth two-way valve 291 is closed.

[0090] Reference Figure 1The air supply system further includes a third two-way valve 132, which is disposed in the first pipeline 130 and between the air outlet mechanism and the air spring 100. When the air compressor 121 inflates the air storage tank 110, the third two-way valve 132 is closed to prevent the compressed air generated by the air compressor 121 from entering the air spring 100. In addition, when the air storage tank 110 supplies air to the air spring 100 alone, the second two-way valve 131 and the third two-way valve 132 are opened, so that the first pipeline 130 is conducted, so that the compressed gas in the air storage tank 110 can be transmitted to the air spring 100, thereby realizing the lifting of the air spring 100.

[0091] Optionally, the air supply system further includes a second pipeline 140, a first end of the second pipeline 140 is connected to the air spring 100 through the first pipeline 130 and the third pipeline 190, and a second end of the second pipeline 140 is connected to the air inlet of the air compressor 121. The second pipeline 140 is provided to discharge the air of the air spring 100 directly to the air storage tank 110. In detail, the first end of the second pipeline 140 is provided between the second two-way valve 131 and the third two-way valve 132, and the first one-way valve 123 is arranged in the second pipeline 140, so as to prevent the gas of the air storage tank 110 from entering the air compressor 121 through the air inlet of the air compressor 121.

[0092] When the first two-way valve 141, the third two-way valve 132 and the sixth two-way valve 291 are opened and the second two-way valve 131 is closed, the gas exhausted from the air spring 100 enters the air compressor 121 from the air inlet through the third pipeline 190, the first pipeline 130 and the second pipeline 140 in sequence, and after being pressurized by the air compressor 121, passes through the dryer 122 and the sixth two-way valve 291 in sequence and returns to the air storage tank 110 from the air storage pipeline 290, thereby realizing the pressurized exhaust of the air spring 100.

[0093] Optionally, the gas supply system further includes a discharge pipeline 150 and a fifth two-way valve 151, wherein the fifth two-way valve 151 is disposed in the discharge pipeline 150, wherein a first end of the discharge pipeline 150 is connected between the first one-way valve 123 and the dryer 122, and a second end of the discharge pipeline 150 is connected to the outside. When the fifth two-way valve 151 is opened, the gas in the gas supply system can be discharged.

[0094] Optionally, the gas supply system also includes an air supply pipeline 160, the first end of which is suitable for connecting to an external gas source 170, and the second end of the air supply pipeline 160 is connected to the second pipeline 140. When the second two-way valve 131 is opened, gas can be added to the gas storage tank 110.

[0095] Optionally, by Figure 2 It can be seen from the gas supply system that the gas supply pipeline 160 is provided with a third one-way valve 161, and the third one-way valve 161 is used to prevent the gas in the gas supply system from overflowing.

[0096] Further, such as Figure 2 As shown, the first one-way valve 123 can also be selected as a two-way solenoid valve. When the first one-way valve 123 is closed, it can prevent the gas in the first pipeline 130 from entering the air compressor 121. When the air compressor 121 is started, the first one-way valve 123 and the air suspension valve 101 are opened to transmit the pressurized gas of the air compressor 121 to the air spring 100, thereby directly lifting the air spring 100.

[0097] The first two-way valve 141 , the second two-way valve 131 , the third two-way valve 132 , the fifth two-way valve 151 and the sixth two-way valve 291 may all be two-way solenoid valves, thereby realizing automatic control of the gas supply system.

[0098] Optionally, the third pipeline 190 is further provided with a pressure sensor 180 for real-time detection of the gas pressure of the third pipeline 190. In addition, both the air spring 100 and the air storage tank 110 may be provided with a pressure sensor 180 for detecting the air pressure.

[0099] In summary, the gas supply system according to the second embodiment has multiple functions, which are described in sequence below (to simplify the description, the valve body not described is in the closed state by default when a certain function is realized).

[0100] 1. The air compressor 121 inflates and stores air in the air storage tank 110.

[0101] The sixth two-way valve 291 is opened, the air compressor 121 compresses the air and transmits it to the air storage tank 110 through the dryer 122 and the sixth two-way valve 291 in sequence. After the air storage is completed, the sixth two-way valve 291 is closed.

[0102] 2. The air tank 110 directly inflates the air spring 100 to achieve lifting.

[0103] The air suspension valve 101 corresponding to each air spring 100 is opened, the second two-way valve 131 and the third two-way valve 132 are opened, and the compressed air in the air storage tank 110 is transmitted to each air spring 100 through the first pipeline 130 and the third pipeline 190 to achieve the lifting of the air spring 100.

[0104] 3. The air compressor 121 inflates the air spring 100 to achieve lifting.

[0105] The air suspension valve 101 and the first one-way valve 123 are opened, and the compressed gas generated by the start-up of the air compressor 121 is transmitted to each air spring 100 through the third pipeline 190 to achieve the lifting of the air spring 100.

[0106] 4. External air source 170 to replenish air.

[0107] The second two-way valve 131 is opened, and the external gas source 170 directly replenishes air to the gas storage tank 110 through the gas replenishment pipeline 160 , the second pipeline 140 and the first pipeline 130 in sequence.

[0108] 5. The air spring 100 is directly exhausted.

[0109] The air suspension valve 101 , the first one-way valve 123 and the fifth two-way valve 151 are opened, and the gas in the air spring 100 enters the exhaust pipeline 150 through the third pipeline 190 and is discharged.

[0110] 6. The air spring 100 is exhausted, pressurized and stored in the air storage tank 110 .

[0111] Open the air suspension valve 101, the third two-way valve 132, the first two-way valve 141 and the sixth two-way valve 291. The gas of the air spring 100 enters the air compressor 121 through the third pipeline 190, the first pipeline 130 and the second pipeline 140 in sequence. After the air compressor 121 starts to pressurize the gas, it is transmitted to the gas storage tank 110 through the gas storage pipeline 290. After the transmission is completed, the sixth two-way valve 291 is closed.

[0112] 7. The air spring 100 directly exhausts the gas to the air storage tank 110 for storage.

[0113] When the air pressure of the air spring 100 is significantly greater than the air pressure of the gas tank 110 , the air suspension valve 101 , the third two-way valve 132 and the second two-way valve 131 are opened, so that the gas in the air spring 100 is discharged to the gas tank 110 through the third pipeline 190 and the first pipeline 130 .

[0114] 8. Read the system pressure.

[0115] The air suspension valve 101 , the second two-way valve 131 and the third two-way valve 132 are opened, and the air pressure is detected by the pressure sensor 180 .

[0116] 9. The excess pressure gas in the gas tank rises by 110%.

[0117] Open the air suspension valve 101, the first two-way valve 141, the second two-way valve 131 and the first one-way valve 123, and turn on the air compressor 121, so that the air inlet of the air compressor 121 can receive the external air source 170 and the residual pressure gas in the air tank 110, and transmit it to the air spring 100 under pressure, thereby shortening the pressurization time of the air compressor 121.

[0118] 10. Remove moisture from the air supply system.

[0119] Open the air suspension valve 101, the first two-way valve 141 and the fifth two-way valve 151, and connect the air supply pipeline 160 to the external air source 170, so that the gas filled into the pipeline passes through the air compressor 121, the dryer 122 and the fifth two-way valve 151 in sequence and is discharged from the discharge pipeline 150, so that the moisture in the dryer 122 is discharged from the air supply system.

[0120] The utility model also provides an air suspension assembly, including the air supply system of the air suspension and the air spring 100. According to the air suspension assembly of the utility model, when the air storage tank 110 directly supplies air to the air spring 100, no waste of compressed air is caused, thereby preventing the pressurization time of the air suspension assembly from being prolonged, and improving the use experience of the air suspension assembly.

[0121] The utility model also provides a vehicle, comprising the air suspension assembly according to the above. According to the vehicle of the utility model, the pressurization time of the air suspension assembly is short, which improves the use experience of the air suspension assembly.

[0122] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art in the technical field of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. Terms such as "setting" appearing in this article may indicate that one component is directly attached to another component, or that one component is attached to another component through an intermediate. Features described in this article in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable in the other embodiment or otherwise specified.

[0123] The utility model has been described through the above embodiments, but it should be understood that the above embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the described embodiments. It can be understood by those skilled in the art that more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of the protection claimed by the utility model.

Claims

1. An air supply system for an air suspension, characterized in that: The air supply system of the air suspension comprises: gas tank; a first pipeline, a first end of the first pipeline being connected to the air storage tank, and a second end of the first pipeline being suitable for being connected to an air spring; An air compressor device comprises an air outlet mechanism, wherein the air outlet mechanism is connected to the first pipeline through a first one-way valve, so that gas can flow from the air compressor device to the air spring.

2. The air supply system of the air suspension according to claim 1, characterized in that: The air supply system also includes a second two-way valve and a third two-way valve, the second two-way valve is arranged in the first pipeline, and the second two-way valve is arranged between the air outlet mechanism and the air storage tank; the third two-way valve is arranged in the first pipeline, and the third two-way valve is suitable for being arranged between the air outlet mechanism and the air spring.

3. The air supply system of the air suspension according to claim 2, characterized in that: The connection point between the air outlet mechanism and the first pipeline is located between the second two-way valve and the third two-way valve.

4. The air supply system of the air suspension according to claim 2, characterized in that: The air supply system further includes a second pipeline, a first end of the second pipeline is suitable for being connected to the air spring, and a second end of the second pipeline is connected to the air tank.

5. The air supply system of the air suspension according to claim 4, characterized in that: The air compression device further includes an air intake mechanism connected to the second pipeline.

6. The air supply system of the air suspension according to claim 5, characterized in that: The air supply system includes a first two-way valve and a fourth two-way valve. The first two-way valve is arranged in the second pipeline and between the air intake mechanism and the air storage tank. The fourth two-way valve is arranged in the second pipeline and between the air intake mechanism and the air spring.

7. The air supply system of the air suspension according to claim 6, characterized in that: The connection point between the air intake mechanism and the second pipeline is located between the first two-way valve and the fourth two-way valve.

8. The air supply system of the air suspension according to claim 2, characterized in that: The air outlet mechanism includes a dryer, and the dryer is connected to the first one-way valve and the first pipeline respectively.

9. The air supply system of the air suspension according to claim 8, characterized in that: The air supply system also includes a discharge pipeline and a fifth two-way valve, wherein the fifth two-way valve is arranged in the discharge pipeline, a first end of the discharge pipeline is connected between the first one-way valve and the dryer, and a second end of the discharge pipeline is suitable for being connected to the outside.

10. The air supply system of the air suspension according to claim 9, characterized in that: The gas supply system further comprises an air supply pipeline, a first end of which is suitable for being connected to an external gas source, and a second end of which is connected to the gas storage tank.

11. An air suspension assembly, characterized in that: An air supply system for an air suspension according to any one of claims 1 to 10 and an air spring.

12. A vehicle, characterized in that: Comprising the air suspension assembly according to claim 11.

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