Gas supply system and air spring system equipped with the same

Abstract

The present invention provides a gas supply system including a gas supply unit 1, a drying unit 105, a piping unit 103, and a gas storage unit. The gas supply unit 1 is connected to the drying unit 105 via the piping unit 103, and includes a valve block 2. The valve block 2 is provided with an air pressure control unit. The air pressure control unit includes an air supply unit 101, an air spring control unit 102, and a connection control unit. The air pressure control unit is connected to the gas storage unit. The gas storage unit includes a first gas storage unit 210 and / or a second gas storage unit 220. The drying unit is provided independently of the gas supply unit, thereby facilitating subsequent replacement of the drying unit. The gas storage unit has a first gas storage unit and a second gas storage unit, and is compatible with connection and usage methods based on both single and dual gas storage units. The present invention also discloses an air spring system including the gas supply system.

Description

[Technical Field]

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

[0002] BACKGROUND ART Conventionally, an air spring device for a vehicle is known from the integrated air supply unit disclosed in the following Patent Document 1, which includes the components required for a current air spring system.

[0003] The air spring device includes a compressor, a gas dryer, an accumulator, various valves, and compressed gas piping. The air spring device further includes a pressure sensor and is controlled by a controller.

[0004] The air supply system for an air spring system according to the prior art mainly includes an air compressor, a valve block, a dryer, and a controller, and these main components are usually designed as an integrated unit to reduce the occupied space.

[0005] Conventional dryers are arranged inside the valve body block, and the position of the dryer is restricted to avoid interference during installation, making it difficult to flexibly arrange it during actual use.

[0006] Additionally, in conventional designs, the dryer is integrated into the valve block, which inevitably makes the dryer replacement process difficult if it becomes damaged and needs replacing.

[0007] Furthermore, although the conventional air supply system applied to the air spring device has a single overall structure and a uniform overall cost, when applied to a vehicle that does not require height adjustment or frequent height adjustment, parts are wasted. In other words, the conventional gas supply system cannot change its structural design as needed, which limits its overall range of application.

[0008] Therefore, there is a need for an optimized design of the conventional gas supply system or air spring system to solve or improve at least one of the above problems. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] Chinese Patent Application No. 201580019730.9 Summary of the Invention

[0010] An object of the present invention is to provide a gas supply system in which the dryer can be easily replaced.

[0011] To achieve the above objectives, the present invention adopts the following technical solutions:

[0012] The present invention provides a gas supply system including a gas supply unit, a drying unit, a piping unit, and a gas storage unit.

[0013] The gas supply unit is connected to a drying unit via a piping unit.

[0014] The gas supply unit includes a valve block and an ECU, and an air 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 a drying unit.

[0017] The piping section includes an external connection pipe, and the drying section is connected to the air supply unit and the air spring control unit via the external connection pipe.

[0018] A gas storage unit is connected to the air pressure control unit, and the gas storage unit includes a first gas storage unit and / or a second gas storage unit, and the first gas storage unit and / or the second gas storage unit are connected to an air spring control unit.

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

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

[0021] The air pressure control unit further includes a third connection control unit, one end of which is connected to the first gas storage unit and the other end of which 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, and one end of the third connection pipe is connected to the first gas storage unit and the other end of which is connected to the intake pipe of 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 gas storage unit and the other end is connected to the first connection control unit or the air spring control unit, 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 connection pipe is connected to the first gas 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 gas storage unit, and the other end is connected to the intake pipe of 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, a ninth control valve is provided on the fifth connection pipe, one end of the fifth connection pipe is connected to the second gas storage section, and the other end is connected to the intake pipe of 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, and an intake pipe is connected to the compressor.

[0027] The drying section includes a dryer.

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

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

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

[0031] The air pressure control unit further includes a pressure limiting control unit, which includes a pressure limiting pipe, which is provided with a pressure limiting valve, and which is connected to an adjacent external connection pipe.

[0032] The air pressure control unit further includes a detection unit connected to the air spring control unit, and the detection unit includes a pressure sensor provided in the air spring control unit.

[0033] The present invention further provides an air spring system for a vehicle, including an air spring assembly, the air spring assembly including a plurality of air springs, the gas supply system being connected to the air spring assembly. [Effects of the Invention]

[0034] The advantages of the present invention are as follows:

[0035] The present invention discloses a gas supply system and an air spring system equipped with the same.

[0036] The drying unit of the gas supply system disclosed in the present invention is provided independently from the gas supply unit, and when the two are connected, they are connected via an external connection pipe, which makes it easy to subsequently replace the drying unit.

[0037] Furthermore, the external dryer allows for individual placement of the dryer, and by controlling the length and placement of the external connection piping, the placement position of the dryer can be changed as needed during actual use. This allows for the optimization of the spatial layout of the entire gas supply system and reduces interference between the gas supply system and adjacent components.

[0038] Furthermore, by providing a gas storage unit, the present invention can improve the adjustment response speed of the air spring in a vehicle using the gas supply system.

[0039] In addition, by using the first gas storage unit and the second gas storage unit in combination, in actual use, the gas supply system disclosed in the present invention can accommodate connection methods based on both single gas storage unit and dual gas storage unit, which can further improve the adjustment response speed of the air spring in the vehicle.

[0040] The contents of each drawing in the specification of the present invention will be briefly described below. [Brief explanation of the drawings]

[0041] [Figure 1] 1 is a structural schematic diagram of the present invention. [Figure 2] 1 is a structural schematic diagram of a first embodiment of the present invention; [Figure 3] 1 is a structural schematic diagram of a first embodiment of the present invention; DETAILED DESCRIPTION OF THE INVENTION

[0042] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described in more detail by describing the best examples with reference to the drawings.

[0043] The gas supply system according to the present invention includes a gas supply unit 1, a drying unit 105, a piping unit 103, and a gas storage unit, and the gas supply unit 1 is connected to the drying unit 105 via the piping unit 103. In the present invention, an installation method in which the gas supply unit 1 is connected to the drying unit 105 via the piping unit 103 can facilitate connection between the gas supply unit 1 and the drying unit 105. In actual use, the piping unit 103 includes an external connection piping 1031, and the drying unit 105 is connected to the air supply unit 101 and the air spring control unit 102, respectively, via the external connection piping 1031. The drying unit 105 of the gas supply system disclosed in the present invention is provided independently of the gas supply unit 1, and when the two are connected, they are connected via the external connection piping 1031. This installation facilitates subsequent replacement of the drying unit 105. Furthermore, the externally attached drying unit 105 allows the drying unit 105 to be individually positioned, and the position of the drying unit 105 can be changed as needed during actual use by controlling the length and position of the external connection pipe 1031. This makes it possible to optimize the spatial layout of the entire gas supply system and reduce interference between the gas supply system and adjacent components.

[0044] In addition, the gas supply system disclosed in the present invention mainly includes a gas supply unit 1, which controls the gas in the corresponding air spring during use, thereby realizing control of the use of the air spring and facilitating control of the vehicle height of a vehicle using the gas supply system.

[0045] The gas used in the gas supply system of the present invention may be air, nitrogen, argon, or the like, and specifically, may be selected and used as needed.

[0046] In the present invention, the gas supply unit 1 includes a valve block 2. The valve block 2 has an exterior that serves as a main support structure and a hollow interior, which facilitates the placement of an air pressure control unit. In the present invention, an ECU 20 is connected to the valve block 2 to conveniently control the corresponding valve in the air pressure control unit. Specifically, the gas supply unit 1 includes a valve block 2 and an ECU, and the air pressure control unit is installed in the valve block 2. The installation of the air pressure control unit facilitates controlling the gas flow direction in the gas supply system. 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 and / or the connection control unit via a drying unit 105. The installation of the air supply unit 101 facilitates controlling the flow of gas into and out of the air spring control unit 102. The air spring control unit 102 is mainly connected to the air spring assembly 201 and is ultimately used to perform subsequent control operations on the corresponding air spring. The air supply unit 101 is also used to fill the gas storage with gas, thereby ensuring the air pressure in the gas storage.

[0047] In the present invention, the air supply unit 101 is connected to the air spring control unit 102 and / or the connection control unit via a drying unit 105. Here, the air supply unit 101 is usually connected to the air spring control unit 102 and / or the connection control unit simultaneously via a dryer 17. In specific implementation, the air supply unit 101 is usually connected to the first connection control unit 107 of the corresponding connection control unit via the drying unit 105, and then connected to the air spring control unit 102. This installation facilitates subsequent control of the air spring control unit 102 by the air supply unit 101. Note that in the present invention, the air supply unit 101 is also directly or indirectly connected to the first connection control unit 107, second connection control unit 108, third connection control unit 110, fourth connection control unit 104, fifth connection control unit 111, and sixth connection control unit of the present invention. For details, please refer to the drawings.

[0048] Furthermore, in the present invention, the air supply unit 101 needs to be connected to the air spring control unit 102 via a drying section 105. The piping section 103 includes an external connection piping 1031, and the drying section 105 is connected to the air supply unit 101 and the air spring control unit 102 via the external connection piping 1031. By providing the drying section 105, the gas supplied from the air supply unit 101 is dried before being supplied to the corresponding air spring control unit 102, thereby ensuring the dryness of the gas that finally enters the air spring assembly 201.

[0049] Furthermore, the installation of the drying section 105 also ensures the dryness of the gas stored in the first gas storage section 210 and the air pressure control unit.

[0050] In addition, in the present invention, a gas storage unit is further connected to the air pressure control unit, and the gas storage unit includes a first gas storage unit 210 and / or a second gas storage unit 220, and the first gas storage unit 210 and / or the second gas storage unit 220 are connected to the air spring control unit 102. In an actual design, the gas storage unit may further include a plurality of other gas storage units, for example, a third gas storage unit or a fourth gas storage unit, and the actual number of such units may be selected as needed. The main purpose of such a design is to enable the gas supply system of the present invention to support connection methods based on a single gas storage unit, dual gas storage units, or even more gas storage units, thereby increasing convenience in actual production.

[0051] In order to reduce costs during specific use and facilitate installation and placement in a vehicle, in actual design, the gas storage unit usually mainly includes a first gas storage unit 210 and a second gas storage unit 220.

[0052] In actual use, the first gas storage unit 210 and the second gas storage unit 220 can be installed selectively according to need, and there are three specific installation methods as follows.

[0053] The first one has only the first gas storage unit 210 installed, the second one has only the second gas storage unit 220 installed, and the third one has both the first gas storage unit 210 and the second gas storage unit 220 installed.

[0054] With the above design, the gas supply system disclosed in the present invention can accommodate connection modes based on single gas reservoir and dual gas reservoir, which can improve the response speed of the present invention more quickly.

[0055] In the present invention, a gas storage unit is connected to the air pressure control unit, and the gas storage unit includes a first gas storage unit 210 and / or a second gas storage unit 220, and the first gas storage unit 210 and / or the second gas storage unit 220 are connected to the air spring control unit 102. In the present invention, the first gas storage unit 210 is connected to the air spring control unit 102, and the installation of the first gas storage unit 210 in the present invention makes it possible to supply air to the air spring and recover exhaust gas from the air spring during subsequent use. When air needs to be supplied to the air spring control unit 102 during actual use, the gas stored in the gas storage unit disclosed in the present invention can assist the air supply unit 101 to quickly supply air to the air spring control unit 102. When the vehicle body needs to be lowered or the air spring unit 201 needs to be exhausted, the gas exhausted from the air spring unit 201 can be stored in the gas storage unit via the air spring control unit 102.

[0056] In actual implementation, the first gas 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.

[0057] Specifically, in the present invention, the first gas storage unit 210 includes a first gas tank 21, which mainly has two functions: storing gas and supplying air to the air spring unit 201. In the present invention, the first gas tank 21 is connected to the air spring control unit 102 via a fourth connection control unit 104. This installation facilitates cooperative use of the first gas tank 21 and the air spring control unit 102. The fourth connection control unit 104 is provided with a fifth control valve 5, which is mainly provided to control the opening and closing of the fourth connection pipe 1041, and changes the gas flow direction as needed during subsequent use, thereby storing gas in the first gas tank 21 and discharging it to the outside.

[0058] In the present invention, the gas storage unit further includes a second gas storage unit 220, which is connected to the air supply unit 101, the first connection control unit 107, and the second connection control unit 108. In the present invention, the installation of the second gas storage unit 220 can improve the control speed of the air pressure control unit over the air spring assembly 201. In the present invention, the second gas storage unit 220 includes a second gas tank 22, which is connected to the intake pipe 291 and / or the second connection pipe 1081 and the third connection pipe 1101 via a fifth connection pipe 1111. A ninth control valve 9 is provided in the fifth connection pipe 1111. In the present invention, the installation of the fifth connection pipe 1111 facilitates the connection of the second gas tank 22 to corresponding components. The ninth control valve 9 is mainly used to control the opening and closing of the fifth connection pipe 1111 and to easily control the discharge of gas from the second gas tank 22 and the inflow of external gas into the second gas tank 22.

[0059] In addition, in actual design, the gas storage unit may be provided with a plurality of other gas storage units, such as a third gas storage unit or a fourth gas storage unit, and the actual number can be selected as needed. The purpose of such design is mainly to enable the gas supply system of the present invention to accommodate connection methods based on a single gas storage unit, dual gas storage units, or even more gas storage units, which can increase convenience in actual production.

[0060] In order to reduce costs during specific use and facilitate installation and placement in a vehicle, in actual design, the gas storage unit usually mainly includes a first gas storage unit 210 and a second gas storage unit 220.

[0061] In actual use, the first gas storage unit 210 and the second gas storage unit 220 can be installed selectively according to need, and there are three specific installation methods as follows.

[0062] The first one has only the first gas storage unit 210 installed, the second one has only the second gas storage unit 220 installed, and the third one has both the first gas storage unit 210 and the second gas storage unit 220 installed.

[0063] With the above design, the gas supply system disclosed in the present invention can accommodate both single gas reservoir and dual gas reservoir based connection methods, which can improve the response speed of the present invention more quickly.

[0064] In addition, in actual design, the air pressure inside the second gas tank 22 is required to be lower than the air pressure inside the first gas tank 21, and in actual use, the gas inside the second gas tank 22 can move into the first gas tank 21, and by keeping the second gas tank 22 in a low pressure state for a long period of time, a fast response time when the vehicle body is lowered is achieved.

[0065] Furthermore, during subsequent use, the present invention allows the first gas storage unit 210 and the second gas storage unit 220 to be used simultaneously in cooperation with each other, thereby allowing the gas storage unit to combine the technical effects of both the first gas storage unit 210 and the second gas storage unit 220, and allowing gas flow control in the gas supply system to be changed as needed, thereby improving convenience in actual production.

[0066] In the present invention, the air pressure control unit further includes a first connection control unit 107, and the drying section 105 is connected to the air spring control unit 102 via the first connection control unit 107. In the present invention, the connection between the dryer 17 and the air spring control unit 102 is mainly realized by installing the first connection control unit 107. Furthermore, by installing the eighth control valve 8, it is possible to control whether the dryer 17 and the air spring control unit 102 are in communication with each other as needed. Furthermore, by cooperating with components such as the air supply unit 101 and the first connection control unit 107, it is possible to realize the gas filling operation for the first gas tank 21 and / or the second gas tank 22. Specifically, in the present invention, the first connection control unit 107 includes a first connection pipe 1071, which is provided with an eighth control valve 8, one end of which is connected to an external connection pipe 1031 in the drying section 105, and the other end of which is connected to the air spring control unit 102. The first gas tank 210 is connected to the air spring control unit 102 via the first connection control unit 107 during subsequent use. This installation facilitates connection between the dryer 17 and the air spring control unit 102 and control of communication therebetween.

[0067] In the present invention, the air pressure control unit further includes a second connection control unit 108, one end of which is connected to the air spring control unit 102 and the other end is connected to the air supply unit 101. In the present invention, the installation of the second connection control unit 108 facilitates the connection between the air spring control unit 102, the air supply unit 101, and the second gas storage unit 220, and further enables the gas in the air spring to be stored in the second gas storage unit 220 via the air spring control unit 102 and the second connection control unit 108. It also facilitates the gas to enter the air supply unit 101 and ultimately be stored in the first gas storage unit 210. In the present invention, the second connection control unit 108 includes a second connection pipe 1081 provided with a seventh control valve, one end of which is connected to the air spring control unit 102 and the other end is connected to the intake pipe 291 of the air supply unit 101. The installation of the second connecting pipe 1081 facilitates the connection between the second connecting control unit 108 and the adjacent pipes, and the installation of the seventh control valve provides a good control function, making it easy to control the opening and closing of the second connecting pipe 1081 during subsequent use.

[0068] In the present invention, the air pressure control unit further includes a third connection control unit 110. In the present invention, the installation of the third connection control unit 110 facilitates the connection between the first gas storage unit 210 and the air supply unit 101, and enables the gas in the first gas storage unit 210 to be supplied to the subsequent air spring control unit 102 via the air supply unit 101 during subsequent use. In the present invention, one end of the third connection control unit 110 is connected to the first gas storage unit 210, and the other end is connected to the air supply unit 101. The third connection control unit 110 includes a third connection pipe 1101, which is provided with a sixth control valve. One end of the third connection pipe 1101 is connected to the first gas storage unit 210, and the other end is connected to the intake pipe 291 of the air supply unit 101. This installation facilitates the connection between the first gas storage unit 210 and the air supply unit 101.

[0069] In addition, in the present invention, the first connection control unit 107 and the second connection control unit 108 have a good bridge communication function, which allows the gas path control operating in the air pressure control unit to be more suitable for actual design requirements. During actual use, the gas discharged from the air spring can flow into the first gas tank 21 via the dryer 17, ensuring the dryness of the stored gas and making it suitable for subsequent reuse.

[0070] Furthermore, in the present invention, one end of the third connection control unit 110 is connected to the first gas storage unit 210 and the other end is connected to the air supply unit 101, and 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 provided with a sixth control valve 6, one end of the third connection pipe 1101 is connected to a 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 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.

[0071] 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, and also plays a role in facilitating the discharge of gas from the air spring group. The discharged gas can be stored in the first gas storage unit 210 via the dryer 17 or directly in the first gas storage unit 210.

[0072] In addition, in the present invention, one end of the third connection control unit 110 is connected to the first gas storage unit 210 and the other end is connected to the air supply unit 101. The third connection control unit 110 includes a third connection pipe 1101 provided with a sixth control valve, and one end of the third connection pipe 1101 is connected to the fourth connection pipe 1041 and the other end is connected to the air supply pipe 291. In the present invention, one role of the third connection control unit 110 is to facilitate communication between the first gas tank 21 and the air supply unit 101, so that the gas in the first gas tank 21 can be pressurized by the air supply unit 101 and then supplied to the air spring group. This avoids the problem that the first gas storage unit 210 cannot continuously supply air when the internal pressure of the air spring group is high.

[0073] In addition, in the present invention, the air pressure control unit further 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 and the air supply unit 101, and the fifth connection control unit 111 is used to connect the second gas tank 22 and the air supply unit 101, the second connection control unit 108, and / or the third connection control unit 110, facilitating the connection of the external first gas tank 21 and second gas tank 22 with the air pressure control unit.

[0074] Furthermore, in the present invention, one end of the fourth connection control unit 104 is connected to the first gas 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 provided with a fifth control valve 5, and one end of the fourth connection pipe 1041 is connected to the first gas 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 piping mechanism with a valve element control function, and is mainly used for connection between the first gas storage unit 210 and the air spring control unit 102. There are two main connection methods: one is a method in which the fourth connection control unit 104 is directly connected to the air spring control unit 102, thereby allowing the first gas storage unit 210 to be directly connected to the air spring control unit 102; the other is a method in which the fourth connection control unit 104 is connected to the air spring control unit 102 via the first connection control unit 107. The installation of the first connection control unit 107 makes it possible to control the isolation between the drying unit 105 and the air spring control unit 102, facilitating the subsequent gas storage operation in the first gas storage unit 210.

[0075] Furthermore, 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 intake pipe 291 of the air supply unit 101 or / and the second connection control unit 108 or / and the third connection control unit 110. In the present invention, the installation of the fifth connection control unit 111 facilitates the connection between the second gas tank 22 and related components in the gas pressure control unit. In actual configuration, the fifth connection control unit 111 includes a fifth connection pipe 1111 provided with a ninth control valve 9, and 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 intake pipe 291 of the air supply unit 101 or / and the second connection control unit 108 or / and the third connection control unit 110. When the fifth connecting pipe 1111 is connected to the intake pipe 291, the second connecting pipe 1081, and the third connecting pipe 1101, communication between the second gas storage section 220 and adjacent pipes becomes possible, making it easier to control the direction of gas flow.

[0076] Furthermore, in the present invention, the air supply unit 101 includes a compressor 3, a driving motor connected to the compressor 3, the compressor 3 including one or more air compression pumps, and an intake pipe 291 and an exhaust pipe 301 connected to the compressor 3. In actual installation, the sixth connection pipe in the sixth connection control unit is connected to a corresponding adjacent external connection pipe 1031 via the exhaust pipe 301. In actual use, the compressor 3 is connected to a corresponding external connection pipe 1031 in the drying section 105 via the exhaust pipe 301. The compressor 3 is mainly used to supply gas within the gas supply section 1 or exhaust it to the outside. In the present invention, the intake pipe 291 is connected to the compressor 3. The installation of the intake pipe 291 provides good communication function, and in actual installation, the intake pipe 291 can directly communicate with the atmosphere. This installation facilitates the supply of air to the compressor 3 during subsequent use, enabling supply of air to the entire gas supply system or the air pressure control unit. In addition, in the present invention, the drying section 105 includes structures such as a dryer 17, a throttle valve, and a check valve; see the drawings for details. The installation of the dryer 17 allows the gas passing through the dryer 17 to be dried, reducing the moisture content in the gas and preventing moisture in the gas from affecting the service life of the air spring. In addition, in the present invention, the piping section 103 includes an external connection pipe 1031. The installation of the external connection pipe 1031 provides an excellent bridge connection function, facilitating 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, respectively, via the external connection pipe 1031. The dryer 17 is connected to the compressor 3 in the air supply unit 101 via one external connection pipe 1031, and the dryer 17 is connected to the air spring control unit 102 via another external connection pipe 1031. With this arrangement, the air supply unit 101, the drying section 105, and the air spring control unit 102 form one circuit, which facilitates the operation of supplying or discharging air to the air spring unit 201 during subsequent use and ensures the subsequent normal operation of the air spring unit 201.

[0077] Furthermore, in the present invention, the first gas storage unit 210 includes a first gas tank 21, and the first gas tank 21 is connected to the fourth connection control unit 104. Specifically, the first gas tank 21 is connected to the fourth connection control unit 104 via a first gas storage external connection pipe. The second gas storage unit 220 includes a second gas tank 22, and the second gas tank 22 is connected to the fifth connection control unit 111. Specifically, the second gas tank 22 is connected to the fifth connection control unit 111 via a second gas storage external connection pipe. This design makes it easy to connect the first gas tank 21 and the second gas tank 22 to adjacent components.

[0078] Furthermore, in the present invention, the air pressure in the second gas storage unit 220 is lower than the air pressure in the first gas storage unit 210. Based on this design, the present invention maintains the second gas tank 22 at a low pressure for a long period of time, thereby quickly transferring gas in the air spring group to the second gas tank 22 and improving the response speed when the vehicle body is lowered. Furthermore, the gas in the second gas storage unit 220 can be transferred to the first gas storage unit 210 via the air supply unit 101, which allows the air pressure in the first gas storage unit 210 to be better maintained and the air pressure in the second gas storage unit 220 to be reduced.

[0079] In addition, in the present invention, the air pressure control unit further includes a sixth connection control unit, which includes a sixth connection pipe provided with a fifteenth control valve, and the sixth connection control unit is connected to the adjacent external connection pipe 1031. In actual installation, the sixth connection control unit 109 of the present invention is connected to a position between the air supply unit 101 and the drying section 105, and is mainly connected to the exhaust pipe 301 of the compressor 3, which is connected to the corresponding external connection pipe 1031 via the exhaust pipe 301. In the present invention, the installation of the sixth connection control unit 109 facilitates the operation of discharging gas to the outside of the air pressure control unit through the dryer 17 during subsequent use, thereby enabling the vehicle body to be lowered by contracting the air spring. In addition, the operation of discharging gas to the outside through the dryer 17 enables the desiccant in the dryer 17 to be regenerated, contributing to the extension of the dryer's lifespan. Specifically, in the present invention, the sixth connection control unit 109 includes a sixth connection pipe provided with a fifteenth control valve 15, and the sixth connection pipe is connected to a corresponding external connection pipe 1031. In the present invention, the installation of the fifteenth control valve 15 makes it possible to control the opening and closing of the sixth connection pipe, and allows gas to be discharged to the outside through the sixth connection pipe as needed.

[0080] 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 equipped with a pressure limiting valve. The pressure limiting pipe 1061 is connected to the adjacent external connection pipe 1031. In the present invention, the pressure limiting control unit 106 is connected to a position between the air supply unit 101 and the drying section 105. Specifically, in the present invention, the pressure limiting control unit 106 is connected to the exhaust pipe 301. The pressure limiting control unit 106 disclosed in the present invention is used to control the pressure in the pipe within the air pressure control unit and prevent the pipe pressure within the air pressure control unit from becoming excessive. Specifically, in the present invention, the pressure limiting control unit 106 includes a pressure limiting pipe 1061 equipped with a pressure limiting valve. The pressure limiting pipe 1061 is connected to the exhaust pipe 301, thereby enabling connection to the external connection pipe 1031. The pressure limiting valve functions as an opening and closing member and is mainly used to control the opening and closing of the pressure limiting pipe 1061, so that the air pressure in the pipe in the air pressure control unit can be controlled during subsequent use.

[0081] In addition, in the present invention, the air pressure control unit further includes a detection unit connected to the air spring control unit 102, and the detection unit includes a pressure sensor provided in the air spring control unit 102. The pressure sensor 27 of the present invention is provided mainly to detect the pressure of the gas circuit in the air pressure control unit, and ensures the normal operation of the air pressure control unit.

[0082] The air spring system for a vehicle according to the present invention includes an air spring assembly 201, which includes a plurality of air springs and is connected to the gas supply system. The air spring system disclosed in the present invention employs dual gas tanks for the gas supply system, improving the speed at which the gas supply system adjusts to the vehicle's lowering. Furthermore, during actual design, the gas supply system disclosed in the present invention can be equipped with different numbers of control valves as needed. This allows for the selection of an appropriate gas supply system as needed, thereby expanding the scope of application of the present invention and avoiding the problem of excessive costs when different vehicle models use a single type of gas supply system.

[0083] In addition, in an actual design, the air spring control unit 102 disclosed in the present invention includes a main spring pipe 202, and the air spring control unit 102 includes a plurality of individual spring control units connected to the main spring pipe 202. Each individual spring control unit includes a branch pipe 203 connected to the main spring pipe 202, and a branch control valve is provided in the branch pipe 203.

[0084] In actual installation, four individual spring control units are typically installed, primarily for use with four air springs. Each individual spring control unit corresponds to one air spring, and the branch control valves in the four individual spring control units are called the tenth control valve 10, the eleventh control valve 11, the twelfth control valve 12, and the thirteenth control valve 13, depending on their installation positions. Furthermore, the air springs are called the first air spring 23, the second air spring 24, the third air spring 25, and the fourth air spring 26, depending on their installation positions. For details, please refer to the drawings.

[0085] In actual implementation, the air spring system of the present invention can adopt a six-valve element configuration, a nine-valve element configuration, or a ten-valve element configuration. The six-valve element configuration, nine-valve element configuration, and ten-valve element configuration mainly refer to the number of control valves installed in the air spring system. The six-valve element configuration is low cost but has a slow response speed, so a detailed explanation is omitted here. The ten-valve element configuration can improve the adjustment speed of the gas suspension. The nine-valve element configuration can improve the response speed of the air spring system to a certain extent without excessively increasing production input.

[0086] A specific embodiment is as follows.

[0087] The gas supply system disclosed in the present invention is mainly used in automotive air spring systems. The gas supply system 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 via a piping unit 103, and the drying unit 105 includes a dryer 17. The gas supply unit 1 mainly includes a valve block 2, an ECU 20 as a controller, and an air pressure control unit. The air pressure control unit includes an air supply unit 101, an air spring control unit 102, a gas storage unit, a sixth connection control unit 109, a pressure limiting control unit 106, a bridge control unit 108, a detection unit, and a first connection control unit 107.

[0088] In the present invention, the gas storage unit includes a first gas storage unit 210 and a second gas storage unit 220, both of which need to be connected to the air spring control unit 102. With this arrangement, in actual use, the gas in the air spring assembly 201 can flow to both gas storage units simultaneously, or to either one of the gas storage units. The two gas storage units may be independent, or may be integrated but partitioned into two cavities.

[0089] In the present invention, the air supply unit 101 mainly includes a compressor 3, which may of course be an air compression pump or other component, and is mainly used to supply gas to the entire air pressure control unit and control the gas flow direction. In actual use, the air compression pump or compressor 3 is disposed within the valve body block 2 and driven by the eccentric shaft at the output end of a brushed or brushless motor. The number of gas pumps can be one or more.

[0090] The ECU 20 of the present invention is required to be connected to a vehicle power supply, a communication network, sensors, control switches, etc. via connectors. The ECU 20 of the present invention also integrates the control functions of electrically controlled dampers and can be connected to at least one vehicle electrically controlled damper via a connector.

[0091] When the gas supply system disclosed in the present invention is used in a vehicle, an air spring system for the vehicle is formed, which can adjust the height of the entire vehicle, the height of a specific axle, or the height of the air spring on one side of the vehicle.

[0092] Furthermore, the control valve disclosed above can employ a solenoid valve structure when actually designed, and specifically can be a two-port, two-position solenoid valve.

[0093] The air spring system of the present disclosure has various embodiments based on the components and piping described above.

[0094] An example is as follows.

[0095] Example 1 As shown in FIG. 1, the gas supply system includes an air spring assembly 201 containing compressed gas, a compressor 3, a dryer 17, a first gas tank 21, a second gas tank 22, fifth to thirteenth control valves, a pressure limiting valve 14, a valve body block 2, a pressure sensor 27, and an ECU 20.

[0096] The first gas tank 21 is connected to the inlet 29 of the compressor 3 via a sixth control valve 6 , and the second gas tank 22 is connected to the inlet 29 of the compressor 3 via a ninth control valve 9 .

[0097] Outlet 30 of compressor 3 is connected to air spring unit 201 via dryer 17, eighth control valve 8, and branch control valve. Outlet 30 of compressor 3 is connected to first gas tank 21 via dryer 17 and fifth control valve 5. In the present invention, air compression pump 4 is connected to compressor 3, and exhaust pipe 301 is provided at outlet 30 of compressor 3, and compressor 3 is connected to adjacent piping or components via exhaust pipe 301.

[0098] The dryer 17 has a drying medium 18, a check valve 19 and an orifice 28, and the air spring unit 201 is connected to the inlet 29 of the compressor 3 via a branch control valve, the seventh control valve 7.

[0099] 1. Adjusting the body height and spring height

[0100] In the process of adjusting the vehicle body height downward, the working principle of the air pump system will be explained using the air spring 23 in the air spring unit 201 as a representative example.

[0101] First, the closed-loop operation principle of the system will be 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 to the second state shown in FIG. 1, and drives the compressor 3 to send 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., path 1) to the first gas tank 21, thereby lowering the height of the air spring 23. Concurrently, the ECU 20 simultaneously drives the ninth control valve 9 to switch from the first state to the second state shown in FIG. 1, and sends compressed gas from the air spring 23 through the tenth control valve 10, the seventh control valve 7, and the ninth control valve 9 (i.e., path 2) to the second gas tank 22, thereby lowering the vehicle height. After the vehicle body height reaches the target value, the ECU 20 stops driving the seventh control valve 7 and the tenth control valve 10, while the compressor 3 continues to operate. The compressed gas in the second gas tank 22 is sent to the first gas tank 21 via the compressor 3, the dryer 17, and the fifth control valve 5. For example, when the ECU 20 determines using the pressure sensor 27 that the amount of compressed gas in the second gas tank 22 has reached the set target, it stops driving the ninth control valve 9, the compressor 3, and the fifth control valve.

[0102] The system can also lower the vehicle height only along path 1 or only along path 2.

[0103] Alternatively, the system can operate according to an open-loop principle. The ECU 20 drives the eighth control valve 8, the tenth control valve 10, and the fifteenth control valve 15 to switch from the first state to the second state shown in FIG. 1 , thereby releasing the compressed gas in the air spring 23 to the atmosphere via the tenth control valve 10, the eighth control valve 8, the dryer 17, and the fifteenth control valve 15 (i.e., path 3), thereby reducing the vehicle height. When the vehicle height reaches the target value, the ECU 20 stops driving the eighth control valve 8, the tenth control valve 10, and the fifteenth control valve 15.

[0104] In the process of adjusting the vehicle body height upward, the working principle of the air pump system will be explained using the air spring 23 in the air spring unit 201 as a representative example.

[0105] 1 to the second state, and drives the compressor 3 to send compressed gas from the first gas tank 21 to the air springs 23 via the sixth control valve 6, the compressor 3, the dryer 17, the eighth control valve 8, and the tenth control valve 10 (i.e., path 4), thereby raising the vehicle height. When the vehicle height reaches the target value, the ECU 20 stops driving the sixth control valve 6, the compressor 3, the eighth control valve 8, and the tenth control valve 10.

[0106] Alternatively, the system can directly raise the vehicle without driving the compressor 3. The ECU 20 drives the fifth control valve 5, the eighth control valve 8, and the tenth control valve 10 to switch from the first state to the second state shown in FIG. 1 , and sends compressed gas from the first gas tank 21 into the air springs 23 via the fifth control valve 5, the eighth control valve 8, and the tenth control valve 10 (i.e., path 5), thereby raising the vehicle height. When the vehicle height reaches a target value, the ECU 20 stops driving the fifth control valve 5, the eighth control valve 8, and the tenth control valve 10.

[0107] 1 to the second state, and drives the compressor 3 to send compressed gas from the second gas tank 22 to the air springs 23 via the ninth control valve 9, the compressor 3, the dryer 17, the eighth control valve 8, and the tenth control valve 10 (i.e., path 6), thereby raising the vehicle height. When the vehicle body height reaches the target value, the ECU 20 stops driving the ninth control valve 9, the compressor 3, the eighth control valve 8, and the tenth control valve 10.

[0108] 2.Gas refilling process

[0109] If the gas in the closed-loop system runs low, the air pump can replenish the gas from the atmosphere. The ECU 20 drives the compressor 3 and the fifth control valve 5, switching the fifth control valve 5 from the first state shown in FIG. 1 to the second state, causing the gas in the atmosphere to pass through the check valve 16, be compressed by the compressor 3, and then be sent to the first gas tank 21 via the dryer 17 and the fifth control valve 5 (i.e., path 7). For example, when driving the eighth control valve 8, if the pressure sensor 27 determines that the amount of gas in the gas tank has reached a target value, the ECU 20 stops driving the fifth control valve 5 and the compressor 3.

[0110] 3. Pressure Measurement

[0111] The gas supply system includes a pressure sensor 27 disposed at a position shown in Fig. 1, which can measure the pressure of the air spring assembly 201, the pressure of the first gas tank 21, the pressure of the second gas tank 22, and the pressure within the gas circuit. The operating principle of pressure measurement will be explained using the air spring 23 within the air spring unit 201 as a representative example. First, the ECU 20 drives the tenth control valve 10 to switch from the first state shown in Fig. 1 to the second state, thereby connecting the pressure sensor 27 and the air spring 23, and the pressure within the air spring 23 is measured by the pressure sensor 27 and transmitted to the ECU 20.

[0112] 4. Desiccant regeneration process

[0113] When the air spring is exhausted to the atmosphere through the above-mentioned path 3, the airflow passes through the desiccant in the reverse direction, thereby removing the moisture in the desiccant and realizing the regeneration of the desiccant.

[0114] Optionally, the compressed gas in the first gas tank 21 is used to regenerate the desiccant. The ECU 20 drives the fifth control valve 5 and the fifteenth control valve 15 to switch from the first state shown in FIG. 1 to the second state, allowing the compressed gas in the first gas tank 21 to be exhausted via the fifth control valve 5, the dryer 17, and the fifteenth control valve 15 (i.e., path 8). When the compressed gas passes through the dryer 17, water vapor in the desiccant can be removed. After the regeneration of the desiccant is completed, the drive to the fifth control valve 5 and the fifteenth control valve 15 is stopped.

[0115] Optionally, the compressed gas in the second gas tank 22 is used to regenerate the desiccant. The ECU 20 drives the ninth control valve 9, the seventh control valve 7, the eighth control valve 8, and the fifteenth control valve 15 to switch from the first state shown in FIG. 1 to the second state, thereby discharging the compressed gas in the second gas tank 22 via the ninth control valve 9, the seventh control valve 7, the eighth control valve 8, the dryer 17, and the fifteenth control valve 15 (i.e., path 9). When the compressed gas passes through the dryer 17, water vapor in the desiccant can be removed. After the desiccant regeneration is completed, the ECU 20 stops driving the ninth control valve 9, the seventh control valve 7, the eighth control valve 8, and the fifteenth control valve 15.

[0116] 5. The process of filling a tire or other externally connected object with gas through a gas system

[0117] In a specific implementation, the gas system can perform gas refill operations on tires or other externally connected objects.

[0118] As an example, the air supply unit is activated, performs an air supply operation to the 6th connection control unit, and fills gas into an externally connected object (e.g., a tire) through the 6th connection control unit, i.e., opens the 15th control valve, performs an air supply operation to the externally connected object through the compressor, and opens the 8th control valve in the 1st connection control unit to monitor the pressure.

[0119] It is also possible to directly fill the external connection object with gas by the gas reservoir, and simultaneously open the eighth control valve in the first connection control unit to monitor the pressure.

[0120] When the gas storage unit performs a gas filling operation on an externally connected object, the first gas storage unit is usually selected to perform the gas filling operation because the air pressure in the first gas storage unit is high. In specific use, the gas is mainly sent from the first gas storage unit to the drying unit via the fourth connection pipe in the fourth connection control unit, and finally discharged from the sixth connection control unit, thereby realizing the gas filling operation on the externally connected object.

[0121] In actual practice, the gas supply unit and the gas storage unit can be operated simultaneously to supply gas, thereby ensuring a rapid gas filling operation to the externally connected object.

[0122] Example 2 As shown in FIG. 2, the gas supply system includes an air spring assembly 201 containing compressed gas, a compressor 3, a dryer 17, a first gas tank 21, fifth to eighth control valves 5 to 8, a branch control valve, a pressure limiting valve 14, a valve body block 2, a pressure sensor 27, and an ECU 20. The first gas tank 21 is connected to an inlet 29 of the compressor 3 via a 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 gas tank 21 via the dryer 17 and the fifth control valve 5. The dryer 17 has a drying medium 18, a check valve 19, and an orifice 28. The air spring unit 201 is connected to the inlet 29 of the compressor 3 via a branch control valve and the seventh control valve 7.

[0123] 1. Adjusting the body height and spring height

[0124] In the process of adjusting the vehicle body height downward, the working principle of the air pump system will be explained using the air spring 23 in the air spring unit 201 as a representative example.

[0125] First, the closed-loop operating principle of the system will be 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 to the second state shown in FIG. 1 , and drives the compressor 3 to send compressed gas from the air spring 23 to the first gas tank 21 via the tenth control valve 10, the seventh control valve 7, the compressor 3, the dryer 17, and the fifth control valve 5 (i.e., path 11), thereby lowering the height of the air spring 23. For example, when the pressure sensor 27 determines that the vehicle body height has reached a target value, the ECU 20 stops driving the tenth control valve 10, the seventh control valve 7, the compressor 3, and the fifth control valve 5.

[0126] The system can also operate according to the open-loop principle. The ECU 20 drives the eighth control valve 8, the tenth control valve 10, and the fifteenth control valve 15 to switch from the first state shown in FIG. 1 to the second state, thereby releasing the compressed gas in the air spring 23 to the atmosphere via the tenth control valve 10, the eighth control valve 8, the dryer 17, and the fifteenth control valve 15 (i.e., path 12), thereby reducing the vehicle height. When the vehicle height reaches the target value, the ECU 20 stops driving the eighth control valve 8, the tenth control valve 10, and the fifteenth control valve 15.

[0127] In the process of adjusting the vehicle body height upward, the working principle of the air pump system will be explained using the air spring 23 in the air spring unit 201 as a representative example.

[0128] The ECU 20 drives the sixth control valve 6, the eighth control valve 8, and the tenth control valve 10 to switch from the first state to the second state shown in FIG. 1 and drives the compressor 3 to send compressed gas from the first gas tank 21 to the air springs 23 via the sixth control valve 6, the compressor 3, the dryer 17, the eighth control valve 8, and the tenth control valve 10 (i.e., the path 13), thereby raising the vehicle height. When the vehicle height reaches the target value, the ECU 20 stops driving the sixth control valve 6, the compressor 3, the eighth control valve 8, and the tenth control valve 10. The system can also raise the vehicle directly without driving the compressor 3. The ECU 20 drives the fifth control valve 5, the eighth control valve 8, and the tenth control valve 10 to switch from the first state to the second state shown in FIG. 1 , and sends compressed gas from the first gas tank 21 into the air springs 23 via the fifth control valve 5, the eighth control valve 8, and the tenth control valve 10 (i.e., the path 14), thereby raising the vehicle height. When the vehicle body height reaches the target value, the ECU 20 stops driving the fifth control valve 5, the eighth control valve 8, and the tenth control valve 10.

[0129] 2.Gas refilling process

[0130] If the gas in the closed-loop system runs low, the air pump can replenish the gas from the atmosphere. The ECU 20 drives the compressor 3 and the fifth control valve 5, switching the fifth control valve 5 from the first state shown in FIG. 1 to the second state, causing the gas in the atmosphere to pass through the check valve 16, be compressed by the compressor 3, and then be sent to the first gas tank 21 via the dryer 17 and the fifth control valve 5 (i.e., path 15). For example, when driving the eighth control valve 8, if the pressure sensor 27 determines that the amount of gas in the gas tank has reached a target value, the ECU 20 stops driving the fifth control valve 5 and the compressor 3.

[0131] 3. Pressure Measurement

[0132] The gas supply system includes a pressure sensor 27 disposed at a position shown in Fig. 1, which can measure the pressure of the air spring assembly 201, the pressure of the first gas tank 21, the pressure of the second gas tank 22, and the pressure within the gas circuit. The operating principle of pressure measurement will be explained using the air spring 23 within the air spring unit 201 as a representative example. First, the ECU 20 drives the tenth control valve 10 to switch from the first state shown in Fig. 1 to the second state, thereby connecting the pressure sensor 27 and the air spring 23, and the pressure within the air spring 23 is measured by the pressure sensor 27 and transmitted to the ECU 20.

[0133] 4. Desiccant regeneration process

[0134] When the air spring is vented to the atmosphere through the above-mentioned path 12, the airflow passes through the desiccant in the reverse direction, removing the moisture in the desiccant and realizing the regeneration of the desiccant.

[0135] Optionally, the compressed gas in the first gas tank 21 is used to regenerate the desiccant. The ECU 20 drives the fifth control valve 5 and the fifteenth control valve 15 to switch from the first state shown in FIG. 1 to the second state, thereby discharging the compressed gas in the first gas tank 21 via the fifth control valve 5, the dryer 17, and the fifteenth control valve 15 (i.e., path 16). When the compressed gas passes through the dryer 17, water vapor in the desiccant can be removed. After the regeneration of the desiccant is completed, the drive to the fifth control valve 5 and the fifteenth control valve 15 is stopped.

[0136] Alternatively, desiccant regeneration may be achieved by compressed gas in one or more air springs.

[0137] The ECU 20 drives one or more branch control valves to switch from the first state shown in FIG. 1 to the second state, and the compressed gas in the air spring corresponding to the driven branch control valve can be exhausted via the tenth control valve 10, the dryer 17, and the fifteenth control valve 15 (i.e., path 25). When the compressed gas passes through the dryer 17, the water vapor in the desiccant can be removed.

[0138] After the regeneration of the desiccant is completed, the drive to the tenth control valve 10 and the fifteenth control valve 15 is stopped.

[0139] 5. The process of filling a tire or other externally connected object with gas through a gas system

[0140] In a specific implementation, the gas system may perform gas refill operations on a tire or other externally connected object.

[0141] As an example, the air supply unit is activated, performs an air supply operation to the 6th connection control unit, and fills gas into an externally connected object (e.g., a tire) through the 6th connection control unit, i.e., opens the 15th control valve, performs an air supply operation to the externally connected object through the compressor, and opens the 8th control valve in the 1st connection control unit to monitor the pressure.

[0142] It is also possible to directly fill the external connection object with gas by the gas reservoir, and simultaneously open the eighth control valve in the first connection control unit to monitor the pressure.

[0143] When the gas storage unit performs a gas filling operation on an externally connected object, the first gas storage unit is usually selected to perform the gas filling operation because the air pressure in the first gas storage unit is high. In specific use, the gas is mainly sent from the first gas storage unit to the drying unit via the fourth connection pipe in the fourth connection control unit, and finally discharged from the sixth connection control unit, thereby realizing the gas filling operation on the externally connected object.

[0144] In actual practice, the gas supply unit and the gas storage unit can be operated simultaneously to supply gas, thereby ensuring a rapid gas filling operation to the externally connected object.

[0145] The present invention also discloses multiple control valve structures. In specific implementation, the gas flow direction in the gas supply section can be changed by opening and closing different control valves and cooperating with each other. Changing the gas flow direction brings about different technical effects. In the above description of the embodiments, the main use route of the present invention has been mainly described, but gas flow routes not disclosed herein are also included in the scope of protection of the present invention. Since the essence of the present invention is to change the use method of a conventional gas supply system by optimizing gas piping, etc., gas flow routes not specifically described in the present invention should also be included in the scope of protection of the present invention.

[0146] Needless to say, the specific embodiments of the present invention are not limited to the above-mentioned methods, and various insubstantial improvements made by adopting the methods, concepts and technical solutions of the present invention are also included in the protection scope of the present invention. [Explanation of symbols]

[0147] 1, gas supply section 101, air supply unit 102, air spring control unit 103, piping section 104, fourth connection control unit 105, drying section 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 body block 210, first gas storage section 220, second gas storage section 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, check valve 17, dryer.

Claims

1. The gas supply unit, the drying unit, the piping unit, and the gas storage unit are included. the gas supply unit is connected to a drying unit via a piping unit; the gas supply unit includes a valve body block and an ECU, and an air pressure control unit is provided in the valve body 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 via a drying unit; the piping section includes an external connection pipe, and the drying section is connected to an air supply unit and an air spring control unit via the external connection pipe, respectively; A gas supply system characterized in that a gas storage unit is connected to the air pressure control unit, the gas storage unit includes a first gas storage unit and / or a second gas storage unit, and the first gas storage unit and / or the second gas storage unit are connected to an air spring control unit.

2. 2. The gas supply system of claim 1, wherein the air pressure control unit further includes a first connection control unit, the drying unit is connected to the air spring control unit via the first connection control unit, the first connection control unit includes a first connection pipe, the first connection pipe is provided with an eighth control valve, one end of the first connection pipe is connected to an external connection pipe of the drying unit, and the other end is connected to the air spring control unit.

3. The gas supply system of claim 1, characterized in that the air pressure control unit further 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 a seventh control valve is provided on the second connection pipe, 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 of the air supply unit.

4. The gas supply system of claim 1, wherein the air pressure control unit further includes a third connection control unit, one end of which is connected to the first gas storage unit and the other end of which is connected to the air supply unit, the third connection control unit including a third connection pipe, a sixth control valve being provided on the third connection pipe, and one end of which is connected to the first gas storage unit and the other end of which is connected to the intake pipe of the air supply unit.

5. 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 gas storage unit and the other end is connected to the first connection control unit or the air spring control unit, the fourth connection control unit includes a fourth connection pipe, and the fourth connection pipe is provided with a fifth control valve; one end of the fourth connection pipe is connected to the first gas 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 gas storage unit, and the other end is connected to the intake pipe of the air supply unit and / or the second connection control unit and / or the third connection control unit; The gas supply system described in any one of claims 1 to 4, characterized in that the fifth connection control unit includes a fifth connection pipe, a ninth control valve is provided in the fifth connection pipe, one end of the fifth connection pipe is connected to a second gas storage section, and the other end is connected to an intake pipe of an air supply unit or / and a second connection control unit or / and a third connection control unit.

6. the air supply unit includes a compressor, and an intake pipe is connected to the compressor; the drying section includes a dryer, and the compressor includes at least one air compression pump; the first gas storage unit includes a first gas tank, the first gas tank is connected to a fourth connection control unit; the second gas storage unit includes a second gas tank, and the second gas tank is connected to a fifth connection control unit; 5. The gas supply system according to claim 1, wherein the second gas storage section has a lower air pressure than the first gas storage section.

7. 5. The gas supply system according to claim 1, wherein the air pressure control unit further includes a sixth connection control unit, the sixth connection control unit includes a sixth connection pipe, the sixth connection pipe is provided with a fifteenth control valve, and the sixth connection control unit is connected to an adjacent external connection pipe.

8. 5. The gas supply system according to claim 1, wherein the air pressure control unit further includes a pressure limiting control unit, the pressure limiting control unit includes a pressure limiting pipe, the pressure limiting pipe is provided with a pressure limiting valve, and the pressure limiting pipe is connected to an adjacent external connection pipe.

9. 5. The gas supply system according to claim 1, wherein the air pressure control unit further includes a detection unit connected to the air spring control unit, and the detection unit includes a pressure sensor provided in the air spring control unit.

10. 1. A vehicle air spring system including an air spring assembly, comprising: the air spring assembly includes a plurality of air springs; 10. An air spring system for a vehicle, wherein the gas supply system according to claim 1 is connected to the air spring assembly.

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