Gas supply system and air spring system having gas supply system

Abstract

A gas supply system, comprising a gas supply unit (1), a drying unit (105), a pipeline unit (103) and a gas storage unit, the gas supply unit (1) being connected to the drying unit (105) by means of the pipeline unit (103); the gas supply unit (1) comprises a valve block (2), a gas pressure control unit being provided in the valve block (2), and the gas pressure control unit comprising a gas-supplying unit (101), an air spring control unit (102) and a connection control unit; the gas pressure control unit is connected to the gas storage unit, the gas storage unit comprising a first gas storage unit (210) or / and a second gas storage unit (220); the drying unit is independent of the gas supply unit so as to facilitate subsequent replacement of the drying unit. Meanwhile, the gas storage unit is provided with the first gas storage unit and the second gas storage unit, which can be compatible with the connection and use modes of a single gas storage unit and double gas storage units. Further disclosed is an air spring system having the gas supply system.

Description

A gas supply system and an air spring system having the same Technical Field

[0001] The present invention relates to the field of vehicle parts, in particular to a gas supply system and an air spring system having the gas supply system. Background Art

[0002] From the document 201580019730.9 “Integrated Air Supply Unit” an air spring arrangement for a vehicle is known, which comprises the essential components of a current air spring system.

[0003] The air spring device comprises a compressor, a gas dryer, a pressure accumulator, various valves and compressed gas lines; the air spring device also comprises a pressure sensor and is controlled by a controller.

[0004] According to the prior art, the air supply system for an air spring system mainly includes an air compressor, a valve block, a dryer, and a controller. In order to reduce the occupied space, these main components are usually designed in an integrated manner.

[0005] Traditionally, the dryer is arranged inside the valve block. In order to avoid interference during installation, the position of the dryer is relatively limited, which is not conducive to flexible arrangement during actual use.

[0006] At the same time, if a conventional design is used to integrate the dryer into the valve block, when the dryer is damaged and needs to be replaced, the difficulty of replacing the dryer will inevitably increase.

[0007] In addition, the traditional air supply system suitable for air spring equipment has a relatively simple structure. Although the overall cost is relatively uniform, when it is used for vehicles that do not need to adjust the vehicle body height or do not need to adjust the vehicle body height frequently, it will cause waste of components. In other words, the traditional gas supply system cannot change its own structural design as needed, and its overall applicability is poor.

[0008] Therefore, in order to solve or improve at least one of the above problems, it is necessary to optimize the design of the existing gas supply system or air spring system.

[0009] Summary of the Invention

[0010] The object of the present invention is to provide a gas supply system which is convenient for replacing a dryer.

[0011] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0012] A gas supply system, characterized by comprising a gas supply unit, a drying unit, a pipeline unit and a gas storage unit;

[0013] The gas supply unit is connected to the drying unit through a pipeline unit;

[0014] The gas supply unit includes a valve block and an ECU; a gas pressure control unit is provided in the valve block;

[0015] The air pressure control unit includes an air supply unit, an air spring control unit and a connection control unit;

[0016] The air supply unit is connected to the air spring control unit and / or the connection control unit via the drying unit;

[0017] The pipeline unit includes an external pipeline; the drying unit is connected to the air supply unit and the air spring control unit respectively through the external pipeline;

[0018] The air pressure control unit is connected to an air storage unit; the air storage unit includes a first air storage unit and / or a second air storage unit; the first air storage unit and / or the second air storage unit is connected to the air spring control unit.

[0019] The air pressure control unit also includes a first connection control unit, and the drying unit is connected to the air spring control unit through the first connection control unit; the first connection control unit includes a first connecting pipe, and the first connecting pipe is provided with an eighth control valve; one end of the first connecting pipe is connected to the external pipe on the drying unit, and the other end is connected to the air spring control unit.

[0020] The air pressure control unit also includes a second connection control unit; one end of the second connection control unit is connected to the air spring control unit, and the other end is connected to the air supply unit; the second connection control unit includes a second connection pipe, and the second connection pipe is provided with a seventh control valve; one end of the second connection pipe is connected to the air spring control unit, and the other end is connected to the intake pipe in the air supply unit.

[0021] The air pressure control unit also includes a third connection control unit; one end of the third connection control unit is connected to the first air storage unit, and the other end is connected to the air supply unit; the third connection control unit includes a third connection pipe, and the third connection pipe is provided with a sixth control valve; one end of the third connection pipe is connected to the first air storage unit, and the other end is connected to the air intake pipe in the air supply unit.

[0022] The air pressure control unit further includes a fourth connection control unit and / or a fifth connection control unit; one end of the fourth connection control unit is connected to the first air storage unit, and the other end is connected to the first connection control unit or the air spring control unit, and the fourth connection control unit includes a fourth connection pipe, and the fourth connection pipe is provided with a fifth control valve;

[0023] One end of the fourth connecting pipe is connected to the first air storage unit, and the other end is connected to the first connection control unit or the air spring control unit;

[0024] One end of the fifth connection control unit is connected to the second air storage unit, and the other end is connected to the air intake pipe in the air supply unit and / or the second connection control unit and / or the third connection control unit;

[0025] The fifth connection control unit includes a fifth connection pipe, on which a ninth control valve is provided; one end of the fifth connection pipe is connected to the second air storage unit, and the other end is connected to the air intake pipe in the air supply unit or / and the second connection control unit or / and the third connection control unit.

[0026] The air supply unit includes a compressor; the compressor is connected to an air intake pipe;

[0027] The drying unit includes a dryer;

[0028] The first gas storage unit includes a first gas storage tank, and the first gas storage tank is connected to the fourth connection control unit;

[0029] The second gas storage unit includes a second gas storage tank, which is connected to the fifth connection control unit; the gas pressure in the second gas storage unit is lower than the gas pressure in the first gas storage unit.

[0030] The air pressure control unit further includes a sixth connection control unit; the sixth connection control unit includes a sixth connection pipe, and the sixth connection pipe is provided with a fifteenth control valve; the sixth connection control unit is connected to an adjacent external pipe.

[0031] The air pressure control unit also includes a pressure limiting control unit; the pressure limiting control unit includes a pressure limiting pipeline; a pressure limiting valve is provided on the pressure limiting pipeline; and the pressure limiting pipeline is connected to an adjacent external pipeline.

[0032] The air pressure control unit further comprises a detection unit connected to the air spring control unit; the detection unit comprises a pressure sensor arranged on the air spring control unit.

[0033] A vehicle air spring system includes an air spring assembly, wherein the air spring assembly includes a plurality of air springs; the air spring assembly is connected to the gas supply system.

[0034] The advantages of the present invention are:

[0035] The invention discloses a gas supply system and an air spring system having the gas supply system.

[0036] The drying unit of the gas supply system disclosed in the present invention is arranged independently of the gas supply unit, and the two are connected via an external pipeline. Such an arrangement can facilitate the subsequent replacement of the drying unit.

[0037] At the same time, the external drying unit facilitates the separate arrangement of the drying unit. By controlling the length and arrangement of the external pipeline, the arrangement position of the drying unit can be changed as needed during actual use, thereby optimizing the spatial arrangement of the entire gas supply system and reducing interference between the gas supply system and adjacent components.

[0038] At the same time, the present invention can improve the adjustment response speed of the air spring in the vehicle using the gas supply system through the provision of the gas storage unit.

[0039] At the same time, through the coordinated use of the first gas storage unit and the second gas storage unit, the gas supply system disclosed in the present invention can be compatible with the connection mode of the gas storage unit and the dual gas storage unit in actual use; and the adjustment response speed of the air spring in the vehicle can be improved more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The following is a brief description of the contents of the drawings in the specification of the present invention:

[0041] FIG1 is a schematic structural diagram of the present invention.

[0042] FIG2 is a schematic structural diagram of the first embodiment of the present invention.

[0043] FIG3 is a schematic structural diagram of the first embodiment of the present invention.

[0044] 1. Gas supply unit, 101. Air supply unit, 102. Air spring control unit, 103. Pipeline unit, 104. Fourth connection control unit, 105. Drying unit, 106. Pressure limiting control unit, 107. First connection control unit, 108. Second connection control unit, 109. Sixth connection control unit, 110. Third connection control unit, 111. Fifth connection control unit, 2. Valve block, 210. First air storage unit, 220. Second air storage unit, 3. Compressor, 4. Air compression pump, 5. Fifth control valve, 6. Sixth control valve, 7. Seventh control valve, 8. Eighth control valve, 9. Ninth control valve, 10. Tenth control valve; 11. Eleventh control valve; 12. Twelfth control valve; 13. Thirteenth control valve; 14. Fourteenth control valve; 15. Fifteenth control valve; 16. One-way valve, 17. Dryer. DETAILED DESCRIPTION

[0045] The specific implementation of the present invention will be further explained in detail below by describing the best embodiment with reference to the accompanying drawings.

[0046] A gas supply system, characterized in that it includes a gas supply unit 1, a drying unit 105, a pipeline unit 103 and a gas storage unit; the gas supply unit 1 is connected to the drying unit 105 through the pipeline unit 103; in the present invention, the gas supply unit 1 is connected to the drying unit 105 through the pipeline unit 103; the present invention can facilitate the connection between the gas supply unit 1 and the drying unit 105 through the above arrangement. In actual use, the pipeline unit 103 includes an external pipeline 1031; the drying unit 105 is respectively connected to the gas supply unit 101 and the drying unit 105 through the external pipeline 1031. and the air spring control unit 102; the drying unit 105 of the gas supply system disclosed in the present invention is independently arranged from the gas supply unit 1, and the two are connected through an external pipe 1031. Such an arrangement can facilitate the subsequent replacement of the drying unit 105; at the same time, the external drying unit 105 facilitates the separate arrangement of the drying unit 105, and subsequently by controlling the length and arrangement of the external pipe 1031, the arrangement position of the drying unit 105 can be changed as needed during actual use, thereby optimizing the spatial arrangement of the entire gas supply system and reducing interference between the gas supply system and adjacent components.

[0047] In addition, the gas supply system disclosed in the present invention mainly includes a gas supply unit 1, which is mainly used to control the gas in the corresponding air spring during subsequent use, thereby realizing the use control of the air spring, and also facilitating the subsequent height control of the vehicle using the gas supply system.

[0048] In addition, the gas running in the gas supply system of the present invention can be a gas structure such as air, nitrogen, argon, etc., and can be selected and used according to needs.

[0049] In the present invention, the gas supply unit 1 includes a valve block 2; the valve block 2 is the main external supporting structure and is hollow inside, which facilitates the layout and placement of the air pressure control unit; in addition, in the present invention, the valve block 2 is connected to the ECU20; it is convenient to control the corresponding valve body in the air pressure control unit; the specific setting method is that the gas supply unit 1 includes a valve block 2 and an ECU; the valve block 2 is provided with an air pressure control unit; the setting of the air pressure control unit facilitates the control of the flow direction of the gas in the gas supply system. At the same time, in the present invention, the air pressure control unit includes an air supply unit 101, an air spring control unit 102 and a connection control unit; the air supply unit 101 is connected to the air spring control unit 102 or / and the connection control unit through the drying unit 105; the setting of the air supply unit 101 facilitates the subsequent control of the gas in and out of the air spring control unit 102; at the same time, the air spring control unit 102 is mainly used to connect with the air spring assembly 201, and finally realizes the subsequent control operation of the corresponding air spring; at the same time, the air supply unit 101 can also perform subsequent inflation operations for the air storage unit to ensure the air pressure in the air storage unit.

[0050] In the present invention, the air supply unit 101 is connected to the air spring control unit 102 or / and the connection control unit through the drying unit 105; here, the air supply unit 101 is generally connected to the air spring control unit 102 or / and the connection control unit at the same time through the dryer 17 unit. In specific implementation, the air supply unit 101 is generally connected to the first connection control unit 107 in the corresponding connection control unit through the drying unit 105, and then connected to the air spring control unit 102; based on such a setting, the subsequent control of the air spring control unit 102 by the air supply unit 101 is facilitated; of course, in the present invention, the air supply unit 101 is also directly or indirectly connected to the first connection control unit 107, the second connection control unit 108, the third connection control unit 110, the fourth connection control unit 104, the fifth connection control unit 111 and the sixth connection control unit of the present invention; please refer to the accompanying drawings for details.

[0051] In addition, the present invention requires that the air supply unit 101 is connected to the air spring control unit 102 through the drying unit 105; the pipeline unit 103 includes an external pipeline 1031; the drying unit 105 is respectively connected to the air supply unit 101 and the air spring control unit 102 through the external pipeline 1031; the setting of the drying unit 105 enables the gas provided by the air supply unit 101 to enter the corresponding air spring control unit 102 after drying; and finally ensures the dryness of the gas subsequently entering the air spring assembly 201.

[0052] In addition, the provision of the drying unit 105 can also ensure the dryness of the gas stored in the first gas storage unit 210 and the air pressure control unit.

[0053] At the same time, in the present invention, the air pressure control unit is also connected to a gas storage unit; the gas storage unit includes a first gas storage unit 210 and / or a second gas storage unit 220; the first gas storage unit 210 and / or the second gas storage unit 220 is connected to the air spring control unit 102; in actual design, the gas storage unit can also be provided with other gas storage units, such as a third gas storage unit or a fourth gas storage unit, and the actual design number is selected according to needs; the purpose of such a design is mainly that the gas supply system of the present invention can be compatible with a single gas storage unit and a dual gas storage unit, or even more gas storage connection methods; it is more convenient to use in actual production.

[0054] In actual use, for the sake of cost and convenience of subsequent arrangement on the vehicle, the gas storage unit generally includes a first gas storage unit 210 and a second gas storage unit 220 in actual design.

[0055] In actual use, the settings of the first gas storage unit 210 and the second gas storage unit 220 can be selected as needed; there are three specific design schemes;

[0056] The first is to set only the first gas storage unit 210 ; the second is to set only the second gas storage unit 220 ; and the third is to set both the first gas storage unit 210 and the second gas storage unit 220 .

[0057] Through the above-mentioned design, the gas supply system disclosed in the present invention can realize a connection mode compatible with a single gas storage unit and a double gas storage unit; and can more quickly improve the response speed of the present invention.

[0058] In the present invention, the air pressure control unit is connected to an air storage unit; the air storage unit includes a first air storage unit 210 and / or a second air storage unit 220; the first air storage unit 210 and / or the second air storage unit 220 are connected to the air spring control unit 102; in the present invention, the first air storage unit 210 is connected to the air spring control unit 102; the present invention, through the setting of the first air storage unit 210, can supply air to the air spring in subsequent use, and can also collect the exhaust gas relative to the air spring; in actual use, when it is necessary to supply air to the air spring control unit 102, the gas stored in the air storage unit disclosed in the present invention can assist the air supply unit 101 to quickly realize the air supply operation to the air spring control unit 102; when the vehicle body needs to descend or the air spring assembly 201 needs to be exhausted, the exhaust gas of the air spring assembly 201 can be stored in the air storage unit through the air spring control unit 102.

[0059] In actual implementation, the first air storage unit 210 of the present invention is connected to the air spring control unit 102 via the fourth connection control unit 104 ; specifically, the fourth connection control unit 104 is connected to the air spring control unit 102 via the first connection control unit 107 .

[0060] Specifically, in the present invention, the first gas storage unit 210 includes a first gas tank 21. The first gas tank 21 mainly has two functions, one is to store gas, and the other is to supply gas to the air spring assembly 201; in the present invention, the first gas tank 21 is connected to the air spring control unit 102 through the fourth connection control unit 104; such a setting facilitates the coordinated use between the first gas tank 21 and the air spring control unit 102, and the fourth connection control unit 104 is provided with a fifth control valve 5; the setting of the fifth control valve 5 is mainly to control the on and off of the fourth connecting pipe 1041; it is convenient to change the flow direction of the gas as needed during subsequent use, so as to realize the storage and discharge of gas in the first gas tank 21.

[0061] In addition, the air storage unit in the present invention also includes a second air storage unit 220; the second air storage unit 220 is connected to the air supply unit 101, the first connection control unit 107 and the second connection control unit 108; the present invention increases the response speed of the air pressure control unit to the control of the air spring assembly 201 through the setting of the second air storage unit 220; in the present invention, the second air storage unit 220 includes a second air tank 22, and the second air tank 22 is connected to the intake pipe 291 or / and the second connecting pipe 1081 and the third connecting pipe 1101 through the fifth connecting pipe 1111; the fifth connecting pipe 1111 is provided with a ninth control valve 9; the present invention facilitates the connection between the second air tank 22 and the corresponding components through the setting of the fifth connecting pipe 1111, and the setting of the ninth control valve 9 is mainly used to control the on and off of the fifth connecting pipe 1111, so as to facilitate the control of the discharge of gas in the second air tank 22 and the control of external gas entering the second air tank 22.

[0062] At the same time, in actual design, other gas storage units may be provided in the gas storage unit, such as a third gas storage unit or a fourth gas storage unit, and the actual design quantity is selected according to needs; the purpose of such design is mainly that the gas supply system of the present invention can be compatible with a single gas storage unit and a dual gas storage unit, or even more gas storage connection methods; it is more convenient to use in actual production.

[0063] In actual use, for the sake of cost and convenience of subsequent arrangement on the vehicle, the gas storage unit generally includes a first gas storage unit 210 and a second gas storage unit 220 in actual design.

[0064] In actual use, the settings of the first gas storage unit 210 and the second gas storage unit 220 can be selected as needed; there are three specific design schemes;

[0065] The first is to set only the first gas storage unit 210 ; the second is to set only the second gas storage unit 220 ; and the third is to set both the first gas storage unit 210 and the second gas storage unit 220 .

[0066] Through the above-mentioned design, the gas supply system disclosed in the present invention can realize a connection mode compatible with a single gas storage unit and a double gas storage unit; and can more quickly improve the response speed of the present invention.

[0067] In addition, in actual design, the air pressure in the second air tank 22 is required to be lower than the air pressure in the first air tank 21. In actual use, the gas in the second air tank 22 can be transferred to the first air tank 21, so that the second air tank 22 is in a low-pressure state for a long time, thereby achieving a response speed when the vehicle body is lowered.

[0068] Of course, during subsequent use, the present invention can cooperate with the first gas storage unit 210 and the second gas storage unit 220 and be used simultaneously. This allows the gas storage unit to have the technical effects of both the first gas storage unit 210 and the second gas storage unit 220 mentioned above, and can change the flow control of the gas in the gas supply system as needed; it is convenient for use in actual production.

[0069] Furthermore, in the present invention, the air pressure control unit further includes a first connection control unit 107, and the drying unit 105 is connected to the air spring control unit 102 through the first connection control unit 107; the present invention is provided with the first connection control unit 107 mainly to realize the connection between the dryer 17 and the air spring control unit 102; at the same time, through the setting of the eighth control valve 8, it is possible to control whether the dryer 17 is connected to the air spring control unit 102 as needed; it is also convenient to cooperate with the air supply unit 101, the first connection control unit 107 and other components to realize the inflation operation of the first air tank 21 and / or the second air tank 22; specifically, in the present invention, the first connection control unit 1 07 includes a first connecting pipe 1071, on which an eighth control valve 8 is provided; one end of the first connecting pipe 1071 is connected to the external pipe 1031 on the drying unit 105, and the other end is connected to the air spring control unit 102; specifically, one end of the first connecting pipe 1071 is connected to the external pipe 1031 on the drying unit 105, and the other end is connected to the air spring control unit 102; the first air storage unit 210 is connected to the air spring control unit 102 through the first connection control unit 107 when used subsequently; based on such a setting, the connection between the dryer 17 and the air spring control unit 102 and the control of the communication between the two are facilitated.

[0070] Furthermore, in the present invention, the air pressure control unit further includes a second connection control unit 108; one end of the second connection control unit 108 is connected to the air spring control unit 102, and the other end is connected to the air supply unit 101; the present invention facilitates the subsequent connection between the air spring control unit 102 and the air supply unit 101 and the second air storage unit 220 through the provision of the second connection control unit 108; Then, the gas in the air spring is stored in the second air storage unit 220 through the air spring control unit 102 and the second connection control unit 108; at the same time, it also facilitates the gas to enter the air supply unit 101 and finally be stored in the first air storage unit 210; in addition, in the present invention, the second connection control unit 108 includes a second connecting pipe 1081, and the second connecting pipe 1081 is provided with a seventh control valve; one end of the second connecting pipe 1081 is connected to the air spring control unit 102, and the other end is connected to the air intake pipe 291 in the air supply unit 101; the setting of the second connecting pipe 1081 facilitates the connection between the second connection control unit 108 and the adjacent pipes; in addition, the setting of the seventh control valve plays a good control role, which is convenient for the on-off control of the second connecting pipe 1081 during subsequent use.

[0071] Furthermore, the air pressure control unit in the present invention also includes a third connection control unit 110; the setting of the third connection control unit 110 in the present invention facilitates the connection between the first air storage unit 210 and the air supply unit 101, and facilitates the gas in the first air storage unit 210 to enter the subsequent air spring control unit 102 through the air supply unit 101 during subsequent use; further, the third connection control unit 110 in the present invention is connected to the first air storage unit 210 at one end and to the air supply unit 101 at the other end; the third connection control unit 110 includes a third connection pipe 1101, and a sixth control valve is provided on the third connection pipe 1101; one end of the third connection pipe 1101 is connected to the first air storage unit 210, and the other end is connected to the air intake pipe 291 in the air supply unit 101; based on such a setting, the connection between the first air storage unit 210 and the air supply unit 101 is facilitated.

[0072] In addition, in the present invention, the first connection control unit 107 and the second connection control unit 108 play a good bridging and connecting role, which can control the trajectory of the gas running in the air pressure control unit; it is more in line with actual design requirements; in actual use, the gas discharged from the air spring can pass through the dryer 17 and then enter the first gas storage tank 21, so as to achieve the dryness of the subsequent stored gas, which is convenient for subsequent reuse.

[0073] Furthermore, in the present invention, one end of the third connection control unit 110 is connected to the first air storage unit 210, and the other end is connected to the air supply unit 101; one end of the second connection control unit 108 is connected to the air spring control unit 102, and the other end is connected to the air supply unit 101; the third connection control unit 110 includes a third connection pipe 1101, and the third connection pipe 1101 is provided with a sixth control valve 6; one end of the third connection pipe 1101 is connected to the fourth connection pipe 1041, and the other end is connected to the intake pipe 291; the second connection control unit 108 includes a second connection pipe 1081, and the second connection pipe 1081 is provided with a seventh control valve 7; one end of the second connection pipe 1081 is connected to the air spring control unit 102, and the other end is connected to the intake pipe 291; based on the above structural design, the gas flow direction can be controlled by controlling the opening and closing of the sixth control valve 6 and the seventh control valve 7.

[0074] In addition, in the present invention, the second connection control unit 108 is mainly used to improve the response speed of the air spring group. Another function is to facilitate the discharge of gas in the air spring group. The discharged gas can be stored in the first air storage unit 210 through the dryer 17 or directly stored in the first air storage unit 210.

[0075] At the same time, in the present invention, one end of the third connection control unit 110 is connected to the first air storage unit 210, and the other end is connected to the air supply unit 101; the third connection control unit 110 includes a third connecting pipe 1101, and the third connecting pipe 1101 is provided with a sixth control valve; one end of the third connecting pipe 1101 is connected to the fourth connecting pipe 1041, and the other end is connected to the intake pipe 291; in the present invention, one function of the third connection control unit 110 is to facilitate the communication between the first air storage tank 21 and the air supply unit 101, and to facilitate the gas in the first air storage tank 21 to be pressurized and supplied to the air spring group after passing through the air supply unit 101, thereby avoiding the problem that the first air storage unit 210 cannot continuously supply air when the internal pressure of the air spring group is large.

[0076] Furthermore, the air pressure control unit in the present invention also includes a fourth connection control unit 104 and / or a fifth connection control unit 111; in the present invention, the fourth connection control unit 104 is used to connect the first gas tank 21 with the gas supply unit 101, and the fifth connection control unit 111 is used to connect the second gas tank 22 with the gas supply unit 101, the second connection control unit 108 or / and the third connection control unit 110; it facilitates the connection between the external first gas tank 21 and the second gas tank 22 and the air pressure control unit.

[0077] At the same time, in the present invention, one end of the fourth connection control unit 104 is connected to the first air storage unit 210, and the other end is connected to the first connection control unit 107 or the air spring control unit 102. The fourth connection control unit 104 includes a fourth connection pipe 1041, and the fourth connection pipe 1041 is provided with a fifth control valve 5; one end of the fourth connection pipe 1041 is connected to the first air storage unit 210, and the other end is connected to the first connection control unit 107 or the air spring control unit 102; the fourth connection control unit 104 of the present invention is essentially a pipeline mechanism with valve body control, mainly It is used to connect the first air storage unit 210 and the air spring control unit 102. There are two main connection methods. One is that the fourth connection control unit 104 is directly connected to the air spring control unit 102, so that the first air storage unit 210 can be directly connected to the air spring control unit 102; the other is that the fourth connection control unit 104 is connected to the air spring control unit 102 through the first connection control unit 107. The setting of the first connection control unit 107 can realize the cut-off control of the drying unit 105 and the air spring control unit 102, which is convenient for the subsequent air storage operation of the first air storage unit 210.

[0078] In addition, in the present invention, one end of the fifth connection control unit 111 is connected to the second gas storage unit 220, and the other end is connected to the air intake pipe 291 or / and the second connection control unit 108 or / and the third connection control unit 110 in the gas supply unit 101; the present invention facilitates the connection between the second gas tank 22 and the related components in the air pressure control unit through the setting of the fifth connection control unit 111; in actual arrangement, the fifth connection control unit 111 includes a fifth connection pipe 1111, and the fifth connection pipe 1111 is provided with a ninth control valve 9; one end of the fifth connection pipe 1111 is connected to the second gas storage unit 220, and the other end is connected to the air intake pipe 291 or / and the second connection control unit 108 or / and the third connection control unit 110 in the gas supply unit 101; when the fifth connection pipe 1111 is connected to the air intake pipe 291, the second connection pipe 1081 and the third connection pipe 1101, the second gas storage unit 220 can be connected to the adjacent pipes, which facilitates the control of the gas flow direction.

[0079] 3. The ventilator 20 is connected to the air intake pipe 291 and the outlet pipe 301 is connected to the air supply unit 105. The ventilator 20 is connected to the air supply unit 105 and the air supply unit 106 is connected to the air supply unit 107. Referring to the accompanying drawings, the setting of the dryer 17 can dry the gas passing through the dryer 17, reduce the water content in the gas, and prevent the water in the gas from affecting the service life of the air spring. In addition, in the present invention, the pipeline unit 103 includes an external pipeline 1031; the setting of the external pipeline 1031 plays a good bridging role, which facilitates the connection between the dryer 17 and the air supply unit 101 and the air spring control unit 102. Specifically, in the present invention, the dryer 17 is connected to the air supply unit 101 and the air spring control unit 102 through the external pipeline 1031. 1 and the air spring control unit 102; the dryer 17 is connected to the compressor 3 in the air supply unit 101 through an external pipe 1031, and the dryer 17 is connected to the air spring control unit 102 through another external pipe 1031; based on this arrangement, the air supply unit 101, the drying unit 105 and the air spring control unit 102 form a loop, which is convenient for the subsequent use of the air spring assembly 201 to supply or exhaust air, thereby realizing the subsequent normal use of the air spring assembly 201.

[0080] At the same time, in the present invention, the first gas storage unit 210 includes a first gas tank 21, which is connected to the fourth connection control unit 104; specifically, the first gas tank 21 is connected to the fourth connection control unit 104 through a first gas storage external pipeline; the second gas storage unit 220 includes a second gas tank 22, which is connected to the fifth connection control unit 111; specifically, the second gas tank 22 is connected to the fifth connection control unit 111 through a second gas storage external pipeline. Based on such a design, the connection between the first gas tank 21 and the second gas tank 22 and adjacent components is facilitated.

[0081] In addition, in the present invention, the air pressure in the second air storage unit 220 is lower than the air pressure in the first air storage unit 210; based on such a design, the present invention keeps the second air storage tank 22 in a low-pressure state for a long time, which facilitates the rapid movement of the gas in the air spring group to the second air storage tank 22, thereby facilitating the improvement of the response speed when the vehicle body is lowered; at the same time, the gas in the second air storage unit 220 can be transferred to the first air storage unit 210 through the air supply unit 101; better ensuring the air pressure in the first air storage unit 210 and reducing the air pressure in the second air storage unit 220.

[0082] Furthermore, in the present invention, the air pressure control unit also includes a sixth connection control unit; the sixth connection control unit includes a sixth connection pipe, and the sixth connection pipe is provided with a fifteenth control valve; the sixth connection control unit is connected to the adjacent external pipe 1031; in actual arrangement, the sixth connection control unit 109 of the present invention is connected to the position between the air supply unit 101 and the drying unit 105, mainly connected to the outlet pipe 301 of the compressor 3, and connected to the corresponding external pipe 1031 through the outlet pipe 301; the present invention is convenient for subsequent use by setting the sixth connection control unit 109, The discharge operation of the dryer 17 to the outside of the air pressure control unit can facilitate the contraction of the air spring and realize the lowering operation of the vehicle body. At the same time, the gas is discharged through the dryer 17, which can realize the regeneration of the desiccant in the dryer 17; it is beneficial to increase the service life of the dryer 17; specifically, in the present invention, the sixth connection control unit 109 includes a sixth connecting pipe, and the sixth connecting pipe is provided with a fifteenth control valve 15; the sixth connecting pipe is connected to the corresponding external pipe 1031; in the present invention, the setting of the fifteenth control valve 15 can be used to control the on and off of the sixth connecting pipe; it is convenient to control the gas to be discharged through the sixth connecting pipe as needed.

[0083] Furthermore, in the present invention, the air pressure control unit further includes a pressure limiting control unit 106; the pressure limiting control unit 106 includes a pressure limiting pipe 1061; the pressure limiting pipe 1061 is provided with a pressure limiting valve; the pressure limiting pipe 1061 is connected to the adjacent external pipe 1031; in the present invention, the pressure limiting control unit 106 is connected to the position between the air supply unit 101 and the drying unit 105, specifically in the present invention, the pressure limiting control unit 106 is connected to the air outlet pipe 301; the pressure limiting control unit 10 disclosed in the present invention 6 can be used to control the pressure of the pipeline in the air pressure control unit to avoid excessive pressure in the pipeline in the air pressure control unit; specifically, in the present invention, the pressure limiting control unit 106 includes a pressure limiting pipeline 1061; the pressure limiting pipeline 1061 is provided with a pressure limiting valve; the pressure limiting pipeline 1061 is connected to the air outlet pipeline 301, and then realizes the connection with the external pipeline 1031; the pressure limiting valve acts as a switch component, mainly used to control the on and off of the pressure limiting pipeline 1061, so as to facilitate the control of the air pressure in the pipeline in the air pressure control unit during subsequent use.

[0084] Furthermore, in the present invention, the air pressure control unit also includes a detection unit connected to the air spring control unit 102; the detection unit includes a pressure sensor arranged on the air spring control unit 102; the setting of the pressure sensor 27 of the present invention is mainly used to detect the pressure of the gas circuit in the air pressure control unit; and ensure the normal operation of the air pressure control unit.

[0085] A vehicle air spring system includes an air spring assembly 201, wherein the air spring assembly 201 includes a plurality of air springs; the air spring assembly 201 is connected to the gas supply system; the air spring system disclosed in the present invention is provided with a gas supply system; a dual gas tank strategy is adopted to improve the adjustment response speed of the gas supply system to the descent of the vehicle body; at the same time, in actual design, the gas supply system disclosed in the present invention can be provided with different numbers of control valves as needed; that is, a suitable gas supply system can be selected according to needs; the scope of application of the present invention is increased, and the problem of excessive cost of using a single type of gas supply system for different vehicle models is avoided.

[0086] In addition, in actual design, the air spring control unit 102 disclosed above in the present invention includes a spring main pipe 202, and the air spring control unit 102 includes multiple single spring control units connected to the spring main pipe 202; each single spring control unit includes a branch pipe 203 connected to the spring main pipe 202, and a branch control valve is provided on the branch pipe 203.

[0087] During actual installation, four single spring control units are generally set up, mainly for use with four air springs; one single spring control unit corresponds to one air spring; the branch control valves on the four single spring control units are mainly called the tenth control valve 10, the eleventh control valve 11, the twelfth control valve 12 and the thirteenth control valve 13 because of their different setting positions; at the same time, the air springs are divided into the first air spring 23, the second air spring 24, the third air spring 25 and the fourth air spring 26 because of their different setting positions; please refer to the attached drawings for details.

[0088] In actual implementation, the air spring system disclosed in the present invention can be set up with 6-valve bodies, 9-valve bodies and 10-valve bodies. The above-mentioned 6-valve bodies, 9-valve bodies and 10-valve bodies mainly refer to the number of control valves set in the air spring system. Although the 6-valve body has low cost, the response is slow, which will not be repeated here. When the 10-valve body solution is adopted, the gas suspension adjustment speed can be improved, and the 9-valve body solution can improve the response speed of the air spring system to a certain extent without increasing production investment too much.

[0089] The specific implementation plan is as follows:

[0090] The gas supply system disclosed in the present invention is mainly used for the air spring system of a motor vehicle. The gas supply unit 1 disclosed in the present invention includes a gas supply unit 1 and a drying unit 105; the gas supply unit 1 is connected to the drying unit 105 through a pipeline unit 103; the drying unit 105 includes a dryer 17, and the gas supply unit 1 mainly includes a valve block 2, an ECU20 controller and an air pressure control unit; and the air pressure control unit includes an air supply unit 101, an air spring control unit 102, an air storage unit, a sixth connection control unit 109, a pressure limiting control unit 106, a bridging control unit 108, a detection unit and a first connection control unit 107, etc.

[0091] In the present invention, the air storage unit includes a first air storage unit 210 and a second air storage unit 220. Both the first air storage unit 210 and the second air storage unit 220 need to be connected to the air spring control unit 102. Based on such a setting, in actual use, the gas in the air spring assembly 201 can flow to the two air storage units at the same time or to one of the air storage units; the two air storage units can be independent or integrated together but separated into two cavities.

[0092] In the present invention, the air supply unit 101 mainly includes a compressor 3, and of course it can also be an air compression pump and other components, which mainly supply gas to the entire air pressure control unit and control the flow direction of the gas; in actual use, the air compression pump or compressor 3 is arranged in the valve block 2 and is driven by the eccentric shaft at the output end of a brushed motor or a brushless motor. The design number of gas pumps can be greater than or equal to 1.

[0093] In addition, the ECU20 controller of the present invention is required to be connected to the vehicle power supply, communication network, sensors, control switches, etc. through connectors; at the same time, the ECU20 controller of the present invention can integrate the control function of the electronically controlled shock absorber and be connected to at least one vehicle electronically controlled shock absorber through connectors.

[0094] When the gas supply system disclosed in the present invention is used in a vehicle, an air spring system for the vehicle will be formed. The air spring system disclosed in the present invention can adjust the height of the entire vehicle, the height of a certain axle of the vehicle, or the height of the air spring on a certain side of the vehicle.

[0095] In addition, the control valve disclosed above may adopt a solenoid valve structure during actual design; specifically, it may be a two-position, two-way solenoid valve.

[0096] Based on the disclosure of the above components and pipes, the air spring system disclosed in the present invention has various embodiments.

[0097] Examples of implementation plans are as follows:

[0098] Example 1:

[0099] A gas supply system is shown in Figure 1, including: an air spring assembly 201 containing compressed gas, a compressor 3, a dryer 17, a first air storage tank 21 and a second air storage tank 22, fifth to thirteenth control valves, a pressure limiting valve 14 and a valve block 2, a pressure sensor 27 and an ECU 20.

[0100] The first air storage tank 21 is connected to the inlet 29 of the compressor 3 through the sixth control valve 6 , and the second air storage tank 22 is connected to the inlet 29 of the compressor 3 through the ninth control valve 9 .

[0101] The outlet 30 of the compressor 3 is connected to the air spring assembly 201 through the dryer 17, the eighth control valve 8, and the branch control valve; the outlet 30 of the compressor 3 is connected to the first air storage tank 21 through the dryer 17, the fifth control valve 5; at the same time, in the present invention, the compressor 3 is connected to the air compression pump 4; an air outlet pipe 301 is provided at the outlet 30 of the compressor 3; the compressor 3 is connected to adjacent pipes or components through the air outlet pipe 301.

[0102] The dryer 17 contains a drying medium 18 , a one-way valve 19 and a throttle hole 28 ; the air spring assembly 201 is connected to the inlet 29 of the compressor 3 via the branch control valve, the seventh control valve 7 .

[0103] 1. Adjustment of vehicle body height and spring height;

[0104] In the process of adjusting the vehicle body height downward, 23 of the air spring assembly 201 is selected as a representative to explain the working principle of the air pump system.

[0105] First, the closed working principle of the system is explained. The ECU 20 drives the tenth control valve 10, the seventh control valve 7 and the fifth control valve 5 to switch from the first state shown in Figure 1 to the second state, and drives the compressor 3 to transport the compressed gas from the air spring 23 through the tenth control valve 10, the seventh control valve 7, the compressor 3, the dryer 17 and the fifth control valve 5, that is, path 1, to the first air tank 21, thereby reducing the height of the air spring 23; in parallel, the ECU 20 can simultaneously drive the ninth control valve 9 to switch from the first state shown in Figure 1 to the second state, and the compressed gas in the air spring 23 can pass through the tenth control valve 10, the seventh control valve 7, the compressor 3, the dryer 17 and the fifth control valve 5, that is, path 1. The air flows through the control valve 10, the seventh control valve 7, and the ninth control valve 9, i.e., path 2, to the second air tank 22, thereby lowering the vehicle body height. When the vehicle body height reaches the target value, the ECU 20 stops driving the seventh control valve 7 and the tenth control valve 10, and the compressor 3 continues to operate. The compressed gas in the second air tank 22 is delivered to the first air tank 21 through the compressor 3, the dryer 17, and the fifth control valve 5. When the compressed gas inventory in the second air tank 22 reaches the set target, for example, as determined by the pressure sensor 27, the ECU 20 stops driving the ninth control valve 9, the compressor 3, and the fifth control valve 5.

[0106] Optionally, the system can also lower the height of the vehicle body via path 1 or path 2 alone.

[0107] Optionally, the system can also operate according to the open principle. ECU20 will drive the eighth control valve 8, the tenth control valve 10 and the fifteenth control valve 15 to switch from the first state shown in Figure 1 to the second state. The compressed gas in the air spring 23 can flow into the atmosphere through the tenth control valve 10, the eighth control valve 8, the dryer 17 and the fifteenth control valve 15, that is, path 3, thereby lowering the vehicle body height; when the vehicle body height reaches the target value, ECU20 stops driving the eighth control valve 8, the tenth control valve 10 and the fifteenth control valve 15.

[0108] In the process of adjusting the vehicle body height upward, the air spring 23 in the air spring assembly 201 is selected as a representative to explain the working principle of the air pump system.

[0109] Optionally, ECU20 will drive the sixth control valve 6, the eighth control valve 8 and the tenth control valve 10 to switch from the first state shown in Figure 1 to the second state, and drive the compressor 3 to transport the compressed gas from the first air tank 21 through the sixth control valve 6, the compressor 3, the dryer 17, the eighth control valve 8 and the tenth control valve 10, that is, path 4, to the airbag 23, thereby lifting the height of the vehicle; when the vehicle body height reaches the target value, ECU20 stops driving the sixth control valve 6, the compressor 3, the eighth control valve 8 and the tenth control valve 10.

[0110] Optionally, the system can also directly lift the vehicle without driving the compressor 3. The ECU20 will drive the fifth control valve 5, the eighth control valve 8 and the tenth control valve 10 to switch from the first state shown in Figure 1 to the second state. The compressed gas in the first air tank 21 flows through the fifth control valve 5, the eighth control valve 8 and the tenth control valve 10, that is, path 5, to the air spring 23, thereby lifting the height of the vehicle; when the vehicle body height reaches the target value, the ECU20 stops driving the fifth control valve 5, the eighth control valve 8 and the tenth control valve 10.

[0111] Optionally, ECU20 will drive the ninth control valve 9, the eighth control valve 8 and the tenth control valve 10 to switch from the first state shown in Figure 1 to the second state, and drive the compressor 3 to transport the compressed gas from the second air tank 22 through the ninth control valve 9, the compressor 3, the dryer 17, the eighth control valve 8 and the tenth control valve 10, that is, path 6, to the airbag 23, thereby lifting the height of the vehicle; when the vehicle body height reaches the target value, ECU20 stops driving the ninth control valve 9, the compressor 3, the eighth control valve 8 and the tenth control valve 10.

[0112] 2. Qi replenishment process

[0113] When the closed system is running low on gas, it can be replenished from the atmosphere via an air pump. ECU 20 activates compressor 3 and fifth control valve 5, switching fifth control valve 5 from the first state shown in Figure 1 to the second state. Atmospheric gas passes through one-way valve 16, compressed by compressor 3, and then transported through dryer 17 and fifth control valve 5, i.e., path 7, to first air storage tank 21. When the air storage tank reaches the target value, as determined by pressure sensor 27 while eighth control valve 8 is being activated, ECU 20 stops driving fifth control valve 5 and compressor 3.

[0114] 3. Pressure measurement

[0115] The gas supply system includes a pressure sensor 27, located as shown in Figure 1. It measures the pressure in the air spring assembly 201, the pressure in the first air reservoirs 21 and 22, and the pressure in the gas circuit. Using air spring assembly 23 as an example, the operating principle of pressure measurement is explained. First, ECU 20 switches the tenth control valve 10 from the first state shown in Figure 1 to the second state. This connects pressure sensor 27 to air spring 23, allowing the pressure in air spring 23 to be measured by pressure sensor 27 and transmitted to ECU 20.

[0116] 4. Desiccant regeneration process;

[0117] When the air spring is exhausted to the atmosphere through the above-described path 3, the airflow passes through the desiccant in the reverse direction, which can take away the water in the desiccant and achieve the regeneration of the desiccant.

[0118] Optionally, desiccant regeneration can be achieved using compressed gas from the first air tank 21. The ECU 20 switches the fifth control valve 5 and the fifteenth control valve 15 from the first state shown in FIG1 to the second state. The compressed gas from the first air tank 21 can be exhausted through the fifth control valve 5, the dryer 17, and the fifteenth control valve 15, i.e., path 8. When the compressed gas flows through the dryer 17, it removes moisture from the desiccant. After desiccant regeneration is achieved, the fifth control valve 5 and the fifteenth control valve 15 are deactivated.

[0119] Optionally, the desiccant can be regenerated using compressed gas from the second air tank 22. The ECU 20 activates the ninth control valve 9, seventh control valve 7, eighth control valve 8, and fifteenth control valve 15, switching from the first state shown in Figure 1 to the second state. The compressed gas from the second air tank 22 can be exhausted through the ninth control valve 9, seventh control valve 7, eighth control valve 8, dryer 17, and fifteenth control valve 15, i.e., path 9. As the compressed gas flows through the dryer 17, it removes moisture from the desiccant. After desiccant regeneration is achieved, the ninth control valve 9, seventh control valve 7, eighth control valve 8, and fifteenth control valve 15 are deactivated.

[0120] 5. The process of the gas system adding air to tires or other external objects;

[0121] In a specific implementation, the gas system can perform air-inflation operations for tires or other external objects.

[0122] An implementation scheme may be that the air supply unit operates to supply air to the sixth connection control unit, and inflates an external object (such as a tire) through the sixth connection control unit, that is, the fifteenth control valve is opened, and air is supplied to the external object through the compressor; at the same time, the eighth control valve in the first connection control unit is opened to monitor the pressure.

[0123] Alternatively, the external object may be inflated directly through the gas storage unit, while the eighth control valve in the first connection control unit is opened to monitor the pressure;

[0124] When the air storage unit performs an inflating operation on an external object, the first air storage unit is generally selected for the inflating operation because the air pressure in the first air storage unit is higher; during specific use, the gas is mainly connected to the drying unit through the first air storage unit through the fourth connecting pipe in the fourth connecting control unit, and finally discharged from the sixth connecting control unit to realize the inflating operation of the external object.

[0125] Of course, in actual implementation, the air supply unit and the air storage unit may also be used to supply air simultaneously to ensure rapid inflation of the external object.

[0126] Example 2:

[0127] A gas supply system, as shown in FIG2 , includes an air spring assembly 201 containing compressed gas, a compressor 3, a dryer 17, a first air reservoir 21, fifth control valves 5-8, a branch control valve, a pressure-limiting valve 14 and valve block 2, a pressure sensor 27, and an ECU 20. The first air reservoir 21 is connected to the inlet 29 of the compressor 3 via the sixth control valve 6. The outlet 30 of the compressor 3 is connected to the air spring assembly 201 via the dryer 17, the eighth control valve 8, and the branch control valve. The outlet 30 of the compressor 3 is connected to the first air reservoir 21 via the dryer 17 and the fifth control valve 5. The dryer 17 contains a drying medium 18, a one-way valve 19, and a throttle orifice 28. The air spring assembly 201 is connected to the inlet 29 of the compressor 3 via the branch control valve and the seventh control valve 7.

[0128] 1. Adjustment of vehicle body height and spring height;

[0129] In the process of adjusting the vehicle body height downward, 23 of the air spring assembly 201 is selected as a representative to explain the working principle of the air pump system.

[0130] First, the closed-loop operating principle of the system will be explained. The ECU 20 will drive the tenth control valve 10, the seventh control valve 7, and the fifth control valve 5 from the first state shown in Figure 1 to the second state, and drive the compressor 3 to transport compressed gas from the air spring 23 through the tenth control valve 10, the seventh control valve 7, the compressor 3, the dryer 17, and the fifth control valve 5, i.e., the path 11, to the first air storage tank 21, thereby lowering the height of the air spring 23. When the vehicle body height reaches the target value, for example, as determined by the pressure sensor 27, the ECU 20 stops driving the tenth control valve 10, the seventh control valve 7, the compressor 3, and the fifth control valve 5.

[0131] The system can also operate according to the open principle. ECU20 will drive the eighth control valve 8, the tenth control valve 10 and the fifteenth control valve 15 to switch from the first state shown in Figure 1 to the second state. The compressed gas in the air spring 23 can flow into the atmosphere through the tenth control valve 10, the eighth control valve 8, the dryer 17 and the fifteenth control valve 15, that is, the path 12, thereby lowering the vehicle body height; when the vehicle body height reaches the target value, ECU20 stops driving the eighth control valve 8, the tenth control valve 10 and the fifteenth control valve 15.

[0132] In the process of adjusting the vehicle body height upward, 23 of the air spring assembly 201 is selected as a representative to explain the working principle of the air pump system.

[0133] ECU 20 switches the sixth, eighth, and tenth control valves 6, 8, and 10 from the first state shown in FIG1 to the second state. This activates compressor 3 to deliver compressed gas from first air tank 21 through sixth control valve 6, compressor 3, dryer 17, eighth control valve 8, and tenth control valve 10 (i.e., path 13) to airbag 23, thereby raising the vehicle's height. When the vehicle's height reaches the target value, ECU 20 stops driving sixth control valve 6, compressor 3, eighth control valve 8, and tenth control valve 10. The system can also directly lift the vehicle without activating compressor 3. ECU 20 switches the fifth, eighth, and tenth control valves 5, 8, and 10 from the first state shown in FIG1 to the second state. Compressed gas in first air tank 21 flows through fifth, eighth, and tenth control valves 10 (i.e., path 14) to air spring 23, thereby raising the vehicle's height. When the vehicle's height reaches the target value, ECU 20 stops driving fifth, eighth, and tenth control valves 10.

[0134] 2. Qi replenishment process

[0135] When the closed system is running low on gas, it can be replenished from the atmosphere via an air pump. ECU 20 activates compressor 3 and fifth control valve 5, switching fifth control valve 5 from the first state shown in Figure 1 to the second state. Atmospheric gas passes through one-way valve 16, compressed by compressor 3, and then transported through dryer 17 and fifth control valve 5 to first air storage tank 21, i.e., path 15. When the air storage tank reaches the target value, as determined by pressure sensor 27 while eighth control valve 8 is being driven, ECU 20 stops driving fifth control valve 5 and compressor 3.

[0136] 3. Pressure measurement

[0137] The gas supply system includes a pressure sensor 27, located as shown in Figure 1. It measures the pressure in the air spring assembly 201, the pressure in the first air reservoirs 21 and 22, and the pressure in the gas circuit. Using air spring assembly 23 as an example, the operating principle of pressure measurement is explained. First, ECU 20 switches the tenth control valve 10 from the first state shown in Figure 1 to the second state. This connects pressure sensor 27 to air spring 23, allowing the pressure in air spring 23 to be measured by pressure sensor 27 and transmitted to ECU 20.

[0138] 4. Desiccant regeneration process

[0139] When the air spring is exhausted to the atmosphere through the path 12 described above, the airflow passes through the desiccant in the reverse direction, which can take away the water in the desiccant and achieve the regeneration of the desiccant.

[0140] Alternatively, desiccant regeneration can be achieved using compressed gas from the first air tank 21. The ECU 20 switches the fifth control valve 5 and the fifteenth control valve 15 from the first state shown in FIG1 to the second state. The compressed gas from the first air tank 21 can be exhausted through the fifth control valve 5, the dryer 17, and the fifteenth control valve 15, i.e., path 16. As the compressed gas flows through the dryer 17, it removes moisture from the desiccant. After desiccant regeneration is achieved, the fifth control valve 5 and the fifteenth control valve 15 are deactivated.

[0141] Of course, desiccant regeneration can also be achieved by compressed gas in one or more air springs.

[0142] ECU20 drives one or more branch control valves to switch from the first state shown in Figure 1 to the second state. The compressed gas in the air spring corresponding to the driven branch control valve is exhausted through the tenth control valve 10, the dryer 17 and the fifteenth control valve 15, that is, path 25. When the compressed gas flows through the dryer 17, it can take away the water vapor in the desiccant.

[0143] After the desiccant regeneration is completed, the driving of the tenth control valve 10 and the fifteenth control valve 15 is stopped.

[0144] 5. The process of the gas system adding air to tires or other external objects;

[0145] In a specific implementation, the gas system can perform air-inflation operations for tires or other external objects.

[0146] An implementation scheme may be that the air supply unit operates to supply air to the sixth connection control unit, and inflates an external object (such as a tire) through the sixth connection control unit, that is, the fifteenth control valve is opened, and air is supplied to the external object through the compressor; at the same time, the eighth control valve in the first connection control unit is opened to monitor the pressure.

[0147] Alternatively, the external object may be inflated directly through the gas storage unit, while the eighth control valve in the first connection control unit is opened to monitor the pressure;

[0148] When the air storage unit performs an inflating operation on an external object, the first air storage unit is generally selected for the inflating operation because the air pressure in the first air storage unit is higher; during specific use, the gas is mainly connected to the drying unit through the first air storage unit through the fourth connecting pipe in the fourth connecting control unit, and finally discharged from the sixth connecting control unit to realize the inflating operation of the external object.

[0149] Of course, in actual implementation, the air supply unit and the air storage unit may also be used to supply air simultaneously to ensure rapid inflation of the external object.

[0150] In addition, it should be made clear that the present invention discloses multiple control valve structures. In specific implementation, the opening and closing of different control valves and the coordination between different control valves can change the flow direction of gas in the gas supply unit, and the different gas flow directions will bring different technical effects. When describing the above embodiments, only the main usage routes of the present invention are mainly stated, but the gas flow paths that are not disclosed are also within the scope of protection of the present invention. Because the essence of the present invention is to change the usage mode of the traditional gas supply system by optimizing gas pipelines, etc., the gas flow paths that are not specifically stated above should also be within the scope of protection of the present invention.

[0151] Obviously, the specific implementation of the present invention is not limited to the above-mentioned methods. As long as various non-substantial improvements are made using the method concept and technical solution of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A gas supply system, characterized in that: It includes a gas supply unit, a drying unit, a pipeline unit and a gas storage unit; The gas supply unit is connected to the drying unit through a pipeline unit; The gas supply unit includes a valve block and an ECU; a gas pressure control unit is provided in the valve block; The air pressure control unit includes an air supply unit, an air spring control unit and a connection control unit; The air supply unit is connected to the air spring control unit and / or the connection control unit through the drying unit; The pipeline unit includes an external pipeline; the drying unit is connected to the air supply unit and the air spring control unit respectively through the external pipeline; The air pressure control unit is connected to an air storage unit; the air storage unit includes a first air storage unit and / or a second air storage unit; the first air storage unit and / or the second air storage unit are connected to the air spring control unit.

2. A gas supply system according to claim 1, characterized in that: The air pressure control unit also includes a first connection control unit, and the drying unit is connected to the air spring control unit through the first connection control unit; the first connection control unit includes a first connection pipe, and the first connection pipe is provided with an eighth control valve; one end of the first connection pipe is connected to the external pipe on the drying unit, and the other end is connected to the air spring control unit.

3. A gas supply system according to claim 1, characterized in that: The air pressure control unit also includes a second connection control unit; one end of the second connection control unit is connected to the air spring control unit, and the other end is connected to the air supply unit; the second connection control unit includes a second connection pipe, and the second connection pipe is provided with a seventh control valve; one end of the second connection pipe is connected to the air spring control unit, and the other end is connected to the intake pipe in the air supply unit.

4. A gas supply system according to claim 1, characterized in that: The air pressure control unit also includes a third connection control unit; one end of the third connection control unit is connected to the first air storage unit, and the other end is connected to the air supply unit; the third connection control unit includes a third connection pipe, and the third connection pipe is provided with a sixth control valve; one end of the third connection pipe is connected to the first air storage unit, and the other end is connected to the air intake pipe in the air supply unit.

5. A gas supply system according to any one of claims 1 to 4, characterized in that: The air pressure control unit further includes a fourth connection control unit and / or a fifth connection control unit; one end of the fourth connection control unit is connected to the first air storage unit, and the other end is connected to the first connection control unit or the air spring control unit, and the fourth connection control unit includes a fourth connection pipeline, and a fifth control valve is provided on the fourth connection pipeline; One end of the fourth connecting pipe is connected to the first air storage unit, and the other end is connected to the first connection control unit or the air spring control unit; One end of the fifth connection control unit is connected to the second air storage unit, and the other end is connected to the air intake pipe in the air supply unit or / and the second connection control unit or / and the third connection control unit; The fifth connection control unit includes a fifth connection pipe, on which a ninth control valve is provided; one end of the fifth connection pipe is connected to the second air storage unit, and the other end is connected to the air intake pipe in the air supply unit or / and the second connection control unit or / and the third connection control unit.

6. A gas supply system according to any one of claims 1 to 4, characterized in that: The air supply unit comprises a compressor; the compressor is connected to an air intake pipeline; The drying unit includes a dryer; the compressor includes at least one air compression pump; The first gas storage unit comprises a first gas storage tank, and the first gas storage tank is connected to a fourth connection control unit; The second gas storage unit includes a second gas storage tank, and the second gas storage tank is connected to a fifth connection control unit; The air pressure in the second air storage unit is lower than the air pressure in the first air storage unit.

7. A gas supply system according to any one of claims 1 to 4, characterized in that: The air pressure control unit also includes a sixth connection control unit; the sixth connection control unit includes a sixth connection pipeline, and a fifteenth control valve is provided on the sixth connection pipeline; the sixth connection control unit is connected to an adjacent external pipeline.

8. A gas supply system according to any one of claims 1 to 4, characterized in that: The air pressure control unit also includes a pressure limiting control unit; the pressure limiting control unit includes a pressure limiting pipeline; a pressure limiting valve is provided on the pressure limiting pipeline; and the pressure limiting pipeline is connected to an adjacent external pipeline.

9. A gas supply system according to any one of claims 1 to 4, characterized in that: The air pressure control unit also includes a detection unit connected to the air spring control unit; the detection unit includes a pressure sensor arranged on the air spring control unit.

10. An air spring system for a vehicle, characterized in that: It comprises an air spring assembly, which comprises a plurality of air springs; the air spring assembly is connected to a gas supply system as claimed in any one of claims 1 to 9.

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