Air spring gas cooling system and method for vehicle

Abstract

The present invention belongs to the field of vehicle engineering technology, and specifically relates to a vehicle's air spring gas cooling system and method, the air spring gas cooling system comprising a gas pipeline, a gas pipeline cooler, a gas pump, a solenoid valve, a control module arranged on the vehicle, and the vehicle's air conditioning refrigeration circuit and air spring; an air inlet and an air outlet are provided on the air spring, both of which are connected to the gas chamber of the air spring, and the two ends of the gas pipeline are connected to the air inlet and the air outlet through a solenoid valve respectively; the gas pipeline cooler and the gas pump are sequentially installed on the gas pipeline, the gas pump is used to pump the gas in the gas chamber out from the outlet to the gas pipeline, and then pump it back into the gas chamber from the air inlet; the gas pipeline cooler is connected between the gas pipeline and the air conditioning refrigeration circuit; the air spring sends cavity air temperature information to the control module; the control module controls the gas pump and the two solenoid valves according to the received cavity air temperature information.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle engineering, and in particular relates to a vehicle air spring gas cooling system and method. Background Art

[0002] With the rise of domestically produced new energy vehicles, some relatively high-end auto parts have also been transferred to mid- and low-end models. For example, more and more models are equipped with air springs, which can effectively improve the comfort of the vehicle.

[0003] When a vehicle equipped with an air spring is driving, the temperature of the gas in the gas chamber of the air spring will gradually increase due to bumps in the road. When the temperature of the gas in the gas chamber reaches a certain temperature value, it will have a significant impact on the vibration reduction performance of the air spring and reduce the comfort of the vehicle during driving.

[0004] However, since there is currently no mature technology for cooling the gas in the gas chamber of the air spring, existing air springs generally have a technical problem of being unable to cool the gas in the gas chamber, resulting in unstable vibration reduction performance. Summary of the Invention

[0005] In order to solve the above-mentioned defects of the prior art, the present invention provides a vehicle air spring gas cooling system and method to solve the technical problem that the existing air springs generally cannot cool the gas in the gas chamber, resulting in unstable vibration reduction performance.

[0006] In order to achieve the above object, the technical solution of the present invention is as follows:

[0007] A vehicle air spring gas cooling system includes a gas pipeline, a gas pipeline cooler, a gas pump, a solenoid valve, a control module provided on the vehicle, an air conditioning refrigeration circuit of the vehicle, and an air spring;

[0008] The air spring is provided with an air inlet and an air outlet, both of which are connected to the gas chamber of the air spring, and the two ends of the gas pipeline are connected to the air inlet and the air outlet respectively through a solenoid valve; the gas pipeline cooler and the gas pump are sequentially installed on the gas pipeline, and the gas pump is used to pump the gas in the gas chamber from the air outlet to the gas pipeline, and then pump it back into the gas chamber from the air inlet; the gas pipeline cooler is connected between the gas pipeline and the air conditioning refrigeration circuit;

[0009] The air spring is used to send cavity air temperature information to the control module; the control module is used to control the gas pump and the two solenoid valves according to the received cavity air temperature information.

[0010] The gas in the gas chamber is pumped out from the gas outlet to the gas pipeline by the gas pump, and then pumped back into the gas chamber from the gas inlet to form a gas circulation path, and then the gas pipeline cooler is used to exchange the heat in the gas pipeline to the air-conditioning refrigeration circuit to cool the air in the gas pipeline, and then cool the air in the gas chamber; this solves the technical problem that the existing air springs generally cannot cool the gas in the gas chamber, which will cause unstable vibration reduction performance.

[0011] Furthermore, the gas pipeline cooler and the gas pump are sequentially arranged on the gas pipeline along the direction from the gas outlet to the gas inlet.

[0012] Furthermore, the air spring gas cooling system of the vehicle further includes an air storage box, the air storage box is fixedly mounted on the gas pipeline, and the air storage box, the gas pipeline cooler and the gas pump are sequentially arranged on the gas pipeline in a direction from the air outlet to the air inlet;

[0013] The air stored in the air storage box is used to mix with the air in the gas pipeline for cooling.

[0014] By arranging the air storage box, the gas pipeline cooler and the gas pump in sequence on the gas pipeline in the direction from the gas outlet to the air inlet, the gas in the gas chamber can first enter the air storage box for mixing and cooling after entering the gas pipeline, and then enter the gas pipeline cooler for heat exchange with the air-conditioning refrigeration circuit; the cooling efficiency can be improved and the refrigeration load of the air-conditioning refrigeration circuit can be reduced.

[0015] Furthermore, the air spring is also used to send intra-cavity air pressure information to the control module; the control module is used to control the opening and closing of the gas pump and the two solenoid valves according to the received intra-cavity air temperature information, and the control module is also used to control the output air pressure of the gas pump according to the received intra-cavity air pressure information after the gas pump is turned on.

[0016] By enabling the control module to control the output air pressure of the gas pump according to the received air pressure information in the cavity after the gas pump is turned on, the output air pressure of the gas pump can be adjusted according to the air pressure value in the gas chamber to maintain the air pressure in the gas chamber stable, thereby preventing the vibration of the vehicle caused by the unstable air pressure in the gas chamber during the cooling process of the gas in the gas chamber, thereby reducing the comfort of the vehicle during driving.

[0017] Furthermore, the air conditioning refrigeration circuit includes a compressor branch and a passenger compartment refrigeration branch arranged in parallel;

[0018] The compressor branch is provided with a compressor and a condenser in sequence, the passenger compartment refrigeration branch is provided with a first expansion valve and an evaporator in sequence, and the gas pipeline cooler is connected between the gas pipeline and the passenger compartment refrigeration branch;

[0019] The gas line cooler is located between the first expansion valve and the evaporator at a connection point on the passenger compartment refrigeration branch, or is located on a side of the evaporator away from the first expansion valve;

[0020] The compressor is used to transport the refrigerant to the condenser and then to the passenger compartment refrigeration branch; the gas pipeline cooler is used to transfer the heat in the gas pipeline to the passenger compartment refrigeration branch.

[0021] In another technical solution, the air conditioning refrigeration circuit includes a compressor branch, a passenger compartment refrigeration branch, and an air spring cooling branch arranged in parallel;

[0022] The compressor branch is provided with a compressor and a condenser in sequence, the passenger compartment cooling branch is provided with a first expansion valve and an evaporator in sequence, and the air spring cooling branch is provided with a second expansion valve and the gas pipeline cooler in sequence;

[0023] The gas pipeline cooler is connected between the gas pipeline and the air spring cooling branch; the compressor is used to transport the refrigerant to the condenser and then to the passenger compartment cooling branch and / or the air spring cooling branch; the gas pipeline cooler is used to transfer the heat in the gas pipeline to the air spring cooling branch.

[0024] According to a vehicle air spring gas cooling system provided by the present invention, the present invention also provides a vehicle air spring gas cooling method, the air spring gas cooling method comprising:

[0025] The control module controls the gas pump and the two solenoid valves to open simultaneously according to the received air temperature information in the cavity, pumps the gas in the gas chamber of the air spring from the gas outlet to the gas pipeline, and then pumps it back into the gas chamber from the air inlet, so that the gas flowing through the gas pipeline can transfer heat to the air conditioning refrigeration circuit through the gas pipeline cooler, thereby cooling the gas in the gas chamber.

[0026] Furthermore, the method of using the control module to control the gas pump and the two solenoid valves to open simultaneously according to the received cavity air temperature information includes:

[0027] The control module obtains the air temperature value in the gas chamber based on the received air temperature information in the cavity, and performs detection based on the obtained air temperature value. If it is detected that the air temperature value is greater than the first preset temperature value, the control module controls the gas pump and the two solenoid valves to open at the same time.

[0028] Furthermore, the method of using the control module to control the gas pump and the two solenoid valves to open simultaneously according to the received cavity air temperature information includes the following steps:

[0029] Step 1: The control module obtains a first air temperature value in the gas chamber according to the received air temperature information in the chamber;

[0030] Step 2: The control module detects the first air temperature value obtained. If it is detected that the first air temperature value is greater than the first preset temperature value, the control module controls the gas pump and the two solenoid valves to open simultaneously, and then proceeds to step 3. If it is detected that the first air temperature value is not greater than the first preset temperature value, the control module returns to step 1.

[0031] Step 3: The control module obtains a second air temperature value in the gas chamber according to the received air temperature information in the chamber;

[0032] Step 4: The control module detects the obtained second air temperature value. If it is detected that the second air temperature value is less than a second preset temperature value, the control module controls the gas pump and the two solenoid valves to close simultaneously, and then returns to Step 1. If it is detected that the second air temperature value is not less than the second preset temperature value, then returns to Step 3.

[0033] Wherein, the second preset temperature value is lower than the first preset temperature value.

[0034] Furthermore, the control module controls the gas pump and the two solenoid valves to be opened simultaneously according to the received air temperature information in the cavity, and also uses the control module to obtain the air pressure value in the gas cavity of the air spring at that time according to the received air pressure information in the cavity;

[0035] The control module calculates a target output pressure value of the gas pump according to the obtained air pressure value;

[0036] The control module controls the output air pressure of the air pump according to the obtained target output air pressure value;

[0037] The target output pressure value is the sum of the air pressure value and the preset boost value.

[0038] Furthermore, the preset boost value ranges from 0 to 0.01 MPa. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the implementation. Obviously, the drawings described below are only some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] Figure 1 is a schematic structural diagram of the air spring gas cooling system of the vehicle in Example 1;

[0041] Figure 2 is a schematic structural diagram of the air spring gas cooling system of the vehicle in Example 2;

[0042] Among them, 1 is gas pipeline, 2 is gas pipeline cooler, 3 is gas pump, 4 is solenoid valve, 5 is air spring, 6 is air storage tank, 7 is compressor, 8 is condenser, 9 is first expansion valve, 10 is evaporator, 11 is second expansion valve, and 12 is intermediate heat exchanger. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0044] Example 1:

[0045] like Figure 1 As shown, embodiment 1 provides a vehicle air spring gas cooling system, including a gas pipeline 1, a gas pipeline cooler 2, a gas pump 3, a solenoid valve 4, a control module provided on the vehicle, and an air conditioning refrigeration circuit of the vehicle and an air spring 5;

[0046] An air inlet and an air outlet are provided on the air spring 5, and both the air inlet and the air outlet are connected to the gas chamber of the air spring 5. The two ends of the gas pipeline 1 are connected to the air inlet and the air outlet respectively through a solenoid valve 4; a gas pipeline cooler 2 and a gas pump 3 are sequentially installed on the gas pipeline 1, and the gas pump 3 is used to pump the gas in the gas chamber from the air outlet to the gas pipeline 1, and then pump it back into the gas chamber from the air inlet; the gas pipeline cooler 2 is connected between the gas pipeline 1 and the air conditioning refrigeration circuit;

[0047] The air spring 5 is used to send the air temperature information in the cavity to the control module; the control module is used to control the gas pump 3 and the two solenoid valves 4 according to the received air temperature information in the cavity.

[0048] The gas in the gas chamber is pumped out from the gas outlet to the gas pipeline 1 by the gas pump 3, and then pumped back into the gas chamber from the air inlet to form a gas circulation path. The gas pipeline cooler 2 is then used to exchange the heat in the gas pipeline 1 to the air-conditioning refrigeration circuit to cool the air in the gas pipeline 1, and then cool the air in the gas chamber; this solves the technical problem that the existing air spring 5 generally cannot cool the gas in the gas chamber, which will cause unstable vibration reduction performance.

[0049] In one embodiment, Figure 1 As shown, the gas pipeline cooler 2 and the gas pump 3 are sequentially arranged on the gas pipeline 1 along the direction from the gas outlet to the gas inlet.

[0050] In one embodiment, Figure 1 As shown, the air spring gas cooling system of the vehicle further includes an air storage box 6, which is fixedly mounted on the gas pipeline 1. The air storage box 6, the gas pipeline cooler 2 and the gas pump 3 are sequentially arranged on the gas pipeline 1 in the direction from the air outlet to the air inlet.

[0051] The air stored in the air storage box 6 is used to mix with the air in the gas pipeline 1 to reduce the temperature.

[0052] By arranging the air storage box 6, the gas pipeline cooler 2 and the gas pump 3 in sequence on the gas pipeline 1 in the direction from the air outlet to the air inlet, the gas in the gas chamber can first enter the air storage box 6 for mixing and cooling after entering the gas pipeline 1, and then enter the gas pipeline cooler 2 for heat exchange with the air-conditioning refrigeration circuit; the cooling efficiency can be improved and the refrigeration load of the air-conditioning refrigeration circuit can be reduced.

[0053] In one embodiment, the air spring 5 is also used to send intracavity air pressure information to the control module; the control module is used to control the opening and closing of the gas pump 3 and the two solenoid valves 4 according to the received intracavity air temperature information, and the control module is also used to control the output air pressure of the gas pump 3 according to the received intracavity air pressure information after the gas pump 3 is turned on.

[0054] By making the control module control the output pressure of the gas pump 3 according to the received air pressure information in the cavity after the gas pump 3 is turned on, the output pressure of the gas pump 3 can be adjusted according to the air pressure value in the gas chamber to maintain the air pressure in the gas chamber stable, thereby preventing the vibration of the vehicle caused by the unstable air pressure in the gas chamber during the cooling process of the gas in the gas chamber, thereby reducing the comfort of the vehicle during driving.

[0055] In this embodiment 1, Figure 1 As shown, the air conditioning refrigeration circuit includes a compressor 7 branch and a passenger compartment refrigeration branch arranged in parallel;

[0056] The compressor 7 branch is provided with a compressor 7 and a condenser 8 in sequence, the passenger compartment refrigeration branch is provided with a first expansion valve 9 and an evaporator 10 in sequence, and the gas pipeline cooler 2 is connected between the gas pipeline 1 and the passenger compartment refrigeration branch;

[0057] The connection point of the gas line cooler 2 on the passenger compartment refrigeration branch is located between the first expansion valve 9 and the evaporator 10, or on the side of the evaporator 10 away from the first expansion valve 9;

[0058] The compressor 7 is used to transport the refrigerant to the condenser 8 and then to the passenger compartment refrigeration branch; the gas pipeline cooler 2 is used to transfer the heat in the gas pipeline 1 to the passenger compartment refrigeration branch.

[0059] Specifically, in this embodiment 1, the connection point of the gas line cooler 2 on the passenger compartment refrigeration branch is located on the side of the evaporator 10 away from the first expansion valve 9;

[0060] The gas pipeline cooler 2 is used to transfer the heat in the gas pipeline 1 to the air conditioning refrigeration circuit, so that the air in the gas pipeline 1 can be cooled by the air conditioning refrigeration circuit.

[0061] Specifically, in this embodiment 1, Figure 1 As shown, the air-conditioning refrigeration circuit also includes an intermediate heat exchanger 12 arranged on the compressor branch. The intermediate heat exchanger 12 includes a first heat exchange channel and a second heat exchange channel. The inlet of the first heat exchange channel is connected to the refrigerant outlet of the condenser 8, and the outlet is connected to one end of the passenger compartment refrigeration branch. The outlet of the second heat exchange channel is connected to the refrigerant inlet of the compressor 7, and the inlets are respectively connected to the other end of the passenger compartment refrigeration branch.

[0062] Example 2:

[0063] Example 2 provides a vehicle air spring gas cooling system, which is substantially the same in structure as the vehicle air spring gas cooling system provided in Example 1, except for the arrangement of the air conditioning refrigeration circuit;

[0064] In this embodiment 2, Figure 2 As shown, the air conditioning refrigeration circuit includes a compressor 7 branch, a passenger compartment cooling branch, and an air spring 5 cooling branch arranged in parallel;

[0065] The compressor 7 branch is provided with a compressor 7 and a condenser 8 in sequence, the passenger compartment cooling branch is provided with a first expansion valve 9 and an evaporator 10 in sequence, and the air spring 5 cooling branch is provided with a second expansion valve 11 and a gas pipeline cooler 2 in sequence;

[0066] The gas line cooler 2 is connected between the gas line 1 and the cooling branch of the air spring 5; the compressor 7 is used to transport the refrigerant to the condenser 8, and then to the passenger compartment cooling branch and / or the air spring 5 cooling branch; the gas line cooler 2 is used to transfer the heat in the gas line 1 to the cooling branch of the air spring 5.

[0067] Example 3:

[0068] According to the vehicle air spring gas cooling systems provided in Examples 1 and 2, Example 3 provides a vehicle air spring gas cooling method, the air spring gas cooling method comprising:

[0069] The control module controls the gas pump 3 and the two solenoid valves 4 to open simultaneously according to the received air temperature information in the cavity, pumps the gas in the gas chamber of the air spring 5 out from the gas outlet to the gas pipeline 1, and then pumps it back into the gas chamber from the air inlet, so that the gas flowing through the gas pipeline 1 can transfer heat to the air conditioning refrigeration circuit through the gas pipeline cooler 2, thereby cooling the gas in the gas chamber.

[0070] The method of using the control module to control the gas pump 3 and the two solenoid valves 4 to open simultaneously according to the received cavity air temperature information includes:

[0071] The control module obtains the air temperature value in the gas chamber based on the received air temperature information in the cavity, and performs detection based on the obtained air temperature value. If the air temperature value detected is greater than the first preset temperature value, the control module controls the gas pump 3 and the two solenoid valves 4 to open at the same time.

[0072] Specifically, in this embodiment 3, the method of using the control module to control the gas pump 3 and the two solenoid valves 4 to open simultaneously according to the received cavity air temperature information includes the following steps:

[0073] Step 1: The control module obtains a first air temperature value in the gas chamber according to the received air temperature information in the chamber;

[0074] Step 2: The control module detects the first air temperature value obtained. If the first air temperature value is greater than the first preset temperature value, the control module controls the gas pump 3 and the two solenoid valves 4 to open simultaneously, and then proceeds to step 3. If the first air temperature value is not greater than the first preset temperature value, the control module returns to step 1.

[0075] Step 3: The control module obtains a second air temperature value in the gas chamber according to the received air temperature information in the chamber;

[0076] Step 4: The control module detects the obtained second air temperature value. If the second air temperature value is less than the second preset temperature value, the control module controls the gas pump 3 and the two solenoid valves 4 to close simultaneously, and then returns to step 1. If the second air temperature value is not less than the second preset temperature value, then returns to step 3.

[0077] The second preset temperature value is lower than the first preset temperature value.

[0078] In one embodiment, the control module controls the gas pump 3 and the two solenoid valves 4 to open simultaneously based on the received air temperature information in the cavity, and also uses the control module to obtain the air pressure value in the gas cavity of the air spring 5 at this time based on the received air pressure information in the cavity;

[0079] The control module calculates the target output pressure value of the gas pump 3 according to the obtained air pressure value;

[0080] The control module controls the output pressure of the gas pump 3 according to the obtained target output pressure value;

[0081] The target output pressure value is the sum of the air pressure value and the preset boost value.

[0082] Specifically, the preset boost value ranges from 0 to 0.01 MPa.

[0083] The vehicle air spring gas cooling system and method provided by the present invention have at least the following technical effects or advantages:

[0084] 1. After the gas in the gas chamber is pumped out from the gas outlet to the gas pipeline 1 by the gas pump 3, it is then pumped back into the gas chamber from the air inlet to form a gas circulation path. Then, the gas pipeline cooler 2 is used to exchange the heat in the gas pipeline 1 to the air conditioning refrigeration circuit to cool the air in the gas pipeline 1, and then cool the air in the gas chamber; this solves the technical problem that the existing air spring 5 generally cannot cool the gas in the gas chamber, which will cause unstable vibration reduction performance.

[0085] 2. By arranging the air storage box 6, the gas pipeline cooler 2 and the gas pump 3 in sequence on the gas pipeline 1 in the direction from the air outlet to the air inlet, the gas in the gas chamber can first enter the air storage box 6 for mixing and cooling after entering the gas pipeline 1, and then enter the gas pipeline cooler 2 for heat exchange with the air conditioning refrigeration circuit; the cooling efficiency can be improved and the refrigeration load of the air conditioning refrigeration circuit can be reduced.

[0086] 3. After the gas pump 3 is turned on, the control module controls the output pressure of the gas pump 3 according to the received information on the air pressure in the cavity. The output pressure of the gas pump 3 can be adjusted according to the air pressure value in the gas chamber to maintain the air pressure in the gas chamber stable, thereby preventing the vibration of the vehicle caused by the unstable air pressure in the gas chamber during the cooling process of the gas in the gas chamber, thereby reducing the comfort of the vehicle during driving.

[0087] The above are only specific application examples of the present invention and do not constitute any limitation to the protection scope of the present invention. Any technical solutions formed by equivalent transformation or equivalent replacement shall fall within the protection scope of the present invention.

Claims

1. A vehicle air spring gas cooling system, characterized in that: include: Gas lines, gas line coolers, gas pumps, solenoid valves, control modules installed on vehicles, and the vehicle's air conditioning refrigeration circuit and air springs; The air spring is provided with an air inlet and an air outlet, both of which are connected to the gas chamber of the air spring, and the two ends of the gas pipeline are connected to the air inlet and the air outlet respectively through a solenoid valve; the gas pipeline cooler and the gas pump are sequentially installed on the gas pipeline, and the gas pump is used to pump the gas in the gas chamber from the air outlet to the gas pipeline, and then pump it back into the gas chamber from the air inlet; the gas pipeline cooler is connected between the gas pipeline and the air conditioning refrigeration circuit; The air spring is used to send cavity air temperature information to the control module; the control module is used to control the gas pump and the two solenoid valves according to the received cavity air temperature information.

2. The vehicle air spring gas cooling system according to claim 1, characterized in that: The gas pipeline cooler and the gas pump are sequentially arranged on the gas pipeline along the direction from the gas outlet to the gas inlet.

3. The vehicle air spring gas cooling system according to claim 2, characterized in that: It also includes an air storage box, the air storage box is fixedly installed on the gas pipeline, and the air storage box, the gas pipeline cooler and the gas pump are arranged in sequence on the gas pipeline along the direction from the gas outlet to the gas inlet; The air stored in the air storage box is used to mix with the air in the gas pipeline for cooling.

4. The vehicle air spring gas cooling system according to claim 1, characterized in that: The air spring is also used to send the air pressure information in the cavity to the control module; the control module is used to control the opening and closing of the gas pump and the two solenoid valves according to the received air temperature information in the cavity, and the control module is also used to control the output air pressure of the gas pump according to the received air pressure information in the cavity after the gas pump is turned on.

5. The vehicle air spring gas cooling system according to claim 1, characterized in that: The air conditioning refrigeration circuit includes a compressor branch and a passenger compartment refrigeration branch arranged in parallel; The compressor branch is provided with a compressor and a condenser in sequence, the passenger compartment refrigeration branch is provided with a first expansion valve and an evaporator in sequence, and the gas pipeline cooler is connected between the gas pipeline and the passenger compartment refrigeration branch; The gas line cooler is located between the first expansion valve and the evaporator at a connection point on the passenger compartment refrigeration branch, or is located on a side of the evaporator away from the first expansion valve; The compressor is used to transport the refrigerant to the condenser and then to the passenger compartment refrigeration branch; the gas pipeline cooler is used to transfer the heat in the gas pipeline to the passenger compartment refrigeration branch.

6. The vehicle air spring gas cooling system according to claim 1, characterized in that: The air conditioning refrigeration circuit includes a compressor branch, a passenger compartment refrigeration branch and an air spring cooling branch arranged in parallel; The compressor branch is provided with a compressor and a condenser in sequence, the passenger compartment cooling branch is provided with a first expansion valve and an evaporator in sequence, and the air spring cooling branch is provided with a second expansion valve and the gas pipeline cooler in sequence; The gas pipeline cooler is connected between the gas pipeline and the air spring cooling branch; the compressor is used to transport the refrigerant to the condenser and then to the passenger compartment cooling branch and / or the air spring cooling branch; the gas pipeline cooler is used to transfer the heat in the gas pipeline to the air spring cooling branch.

7. A method for cooling air spring gas of a vehicle, characterized in that: The air spring gas cooling system for a vehicle according to any one of claims 1 to 6 is implemented, wherein the air spring gas cooling method comprises: The control module controls the gas pump and the two solenoid valves to open simultaneously according to the received air temperature information in the cavity, pumps the gas in the gas chamber of the air spring from the gas outlet to the gas pipeline, and then pumps it back into the gas chamber from the air inlet, so that the gas flowing through the gas pipeline can transfer heat to the air conditioning refrigeration circuit through the gas pipeline cooler, thereby cooling the gas in the gas chamber.

8. The method for cooling the air spring of a vehicle according to claim 7, wherein: The method of controlling the gas pump and the two solenoid valves to open simultaneously according to the received air temperature information in the cavity by using the control module includes: The control module obtains the air temperature value in the gas chamber based on the received air temperature information in the cavity, and performs detection based on the obtained air temperature value. If it is detected that the air temperature value is greater than the first preset temperature value, the control module controls the gas pump and the two solenoid valves to open at the same time.

9. The method for cooling the air spring of a vehicle according to claim 8, wherein: The method of controlling the gas pump and two solenoid valves to open simultaneously based on the received air temperature information in the cavity by using the control module includes the following steps: Step 1: The control module obtains a first air temperature value in the gas chamber according to the received air temperature information in the chamber; Step 2: The control module detects the first air temperature value obtained. If it is detected that the first air temperature value is greater than the first preset temperature value, the control module controls the gas pump and the two solenoid valves to open simultaneously, and then proceeds to step 3. If it is detected that the first air temperature value is not greater than the first preset temperature value, the control module returns to step 1. Step 3: The control module obtains a second air temperature value in the gas chamber according to the received air temperature information in the chamber; Step 4: The control module detects the obtained second air temperature value. If it is detected that the second air temperature value is less than a second preset temperature value, the control module controls the gas pump and the two solenoid valves to close simultaneously, and then returns to Step 1. If it is detected that the second air temperature value is not less than the second preset temperature value, then returns to Step 3. Wherein, the second preset temperature value is lower than the first preset temperature value.

10. The method for cooling the air spring of a vehicle according to claim 7, wherein: The control module controls the gas pump and the two solenoid valves to be opened simultaneously according to the received air temperature information in the cavity, and also uses the control module to obtain the air pressure value in the gas cavity of the air spring at that time according to the received air pressure information in the cavity; The control module calculates a target output pressure value of the gas pump according to the obtained air pressure value; The control module controls the output air pressure of the air pump according to the obtained target output air pressure value; The target output pressure value is the sum of the air pressure value and the preset boost value.

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