Low-temperature air supply system and method for air suspension

Abstract

The present invention relates to the field of automobile control technology, and specifically refers to a low-temperature air supply system and method for air suspension. It includes a pipeline module, a temperature acquisition module and a control module. The pipeline module includes a first pipeline and a second pipeline; one end of the first pipeline is connected to the air outlet of the air conditioner, and the other end is connected to the inlet of the air compressor that supplies air to the air spring; one end of the second pipeline is connected to the external atmosphere, and the other end is connected to the inlet of the air compressor; the temperature acquisition module is used to collect the internal gas temperature of the air spring, the external ambient temperature and the air temperature of the air outlet; the control module controls the first pipeline or the second pipeline to be connected to the air compressor based on the internal gas temperature of the air spring, the external ambient temperature and the air temperature of the air outlet. The present application can provide low-temperature gas to the air spring to cool it down, so that the air spring is always in a good temperature environment.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile control, and in particular to a low-temperature air supply system and method for an air suspension. Background Art

[0002] At present, air suspension is widely used in vehicles due to its advantages such as good smoothness and handling stability, as well as the ability to adjust the hardness of shock absorption and the height of the vehicle body.

[0003] In the related art, the air suspension system includes an air spring and a height sensor, etc., wherein the air spring is arranged between the vehicle body and the spring tray on the suspension, and has a buffering and vibration reduction function; there are two height sensors, and the two height sensors can be respectively arranged on the vehicle frame and the spring tray, or respectively arranged on the vehicle frame and the upper swing arm or respectively arranged on the vehicle frame and the lower swing arm. The height sensor is used to detect the vehicle height signal and transmit the height signal to the Electronic Control Unit (ECU). The ECU can adjust the posture of the vehicle body according to the read height signal. The ECU adjusts the posture of the vehicle body according to the read height signal and the vehicle state, and when the vehicle body posture is adjusted, the ECU can start the air supply and distribution module to realize the gas transmission between the air tank and the air spring. Among them, the air supply and distribution module can be an air compressor, etc.

[0004] During vehicle operation, the air in the air spring chamber is frequently compressed, causing its temperature to rise. When the temperature is too high, it will affect the performance of the air spring and reduce the comfort of the vehicle during driving. To address this technical problem, a Chinese invention patent application entitled "An air supply device and its operating mode" with patent number "CN117885486A" proposes an air supply device for air suspension. The device mentions that the air supply device includes an air pump, and the air drying chamber is used to dry the gas compressed by the air pump. A motor is provided on the outside of the air supply device to drive the air pump. The air pump is independently arranged and connected to the reversing valve device or the air drying chamber directly or through a cooling device. By adding a cooling device, this solution reduces the temperature entering the drying chamber, thereby improving the drying capacity of the air drying chamber and the service life of the air supply device. This solution can reduce the temperature of the gas entering the air spring to a certain extent, thereby improving the performance of the air spring. However, because a cooling device needs to be added to the entire pipeline, the cost of the entire air suspension will increase, which is not conducive to large-scale promotion and application. In addition, the added cooling device is mainly used to facilitate the drying of the gas, and has a poor cooling effect on the gas entering the air spring. Summary of the Invention

[0005] The purpose of the present invention is to solve the deficiencies of the above-mentioned background technology and to provide a low-temperature air supply system and method for air suspension.

[0006] The technical solution of the present invention is: a low-temperature air supply system for air suspension, comprising:

[0007] A pipeline module, the pipeline module comprising a first pipeline and a second pipeline; one end of the first pipeline is connected to the air outlet of the air conditioner, and the other end is connected to the inlet of the air compressor that supplies air to the air spring; one end of the second pipeline is connected to the external atmosphere, and the other end is connected to the inlet of the air compressor;

[0008] A temperature acquisition module is used to collect the internal gas temperature of the air spring, the external ambient temperature, and the gas temperature at the air outlet of the air conditioner;

[0009] A control module controls the first or second pipeline to be connected to the air compressor based on the internal gas temperature of the air spring, the external ambient temperature and the air temperature of the air-conditioning outlet, thereby adjusting the internal gas temperature of the air spring.

[0010] According to a low-temperature air supply system for air suspension provided in this application, the temperature acquisition module includes:

[0011] a first temperature sensor, which is disposed inside the air spring and is used to collect the gas temperature inside the air spring;

[0012] a second temperature sensor, which is disposed at the inlet end of the second pipeline and is used to collect the temperature of the external ambient gas;

[0013] The third temperature sensor is arranged at the air outlet of the air conditioner and is used to collect the gas temperature at the air outlet of the air conditioner.

[0014] According to a low-temperature air supply system for an air suspension provided in the present application, the pipeline module includes:

[0015] A connecting pipe, one end of which is connected to the inlet of the air compressor, and the other end of which is connected to the outlet of the first pipeline and the second pipeline through a three-way valve; the three-way valve is connected to the control module signal.

[0016] According to a low-temperature air supply system for an air suspension provided by the present application, the control module includes:

[0017] The first judgment module is used to compare the internal gas temperature of the air spring with the first set temperature, and to judge that low-temperature gas needs to be provided to the inside of the air spring when the internal gas temperature of the air spring is not less than the first set temperature; and to judge that low-temperature gas does not need to be provided to the inside of the air spring when the internal gas temperature of the air spring is less than the first set temperature.

[0018] According to a low-temperature air supply system for an air suspension provided by the present application, the control module includes:

[0019] The second judgment module is used to compare the air-conditioning outlet temperature with the external ambient gas temperature when it is necessary to provide low-temperature gas to the inside of the air spring, and to make a judgment to connect the first pipeline and cut off the second pipeline when the air-conditioning outlet temperature is lower than the external ambient gas temperature; and to make a judgment to cut off the first pipeline and connect the second pipeline when the air-conditioning outlet temperature is not lower than the external ambient gas temperature.

[0020] According to a low-temperature air supply system for an air suspension provided by the present application, the control module includes:

[0021] The third judgment module is used to compare the internal gas temperature of the air spring with the second set temperature after the compressor supplies low-temperature gas to the air spring for a set time, and to make a judgment to stop supplying low-temperature gas to the inside of the air spring when the internal gas temperature of the air spring is not greater than the second set temperature, and to make a judgment to continue supplying low-temperature gas to the inside of the air spring when the internal gas temperature of the air spring is greater than the second set temperature.

[0022] The present application also provides a method for supplying low-temperature air for an air suspension, the method being operated by utilizing the above-mentioned low-temperature air supply system for an air suspension, comprising:

[0023] Collect the gas temperature inside the air spring and determine whether the gas inside the air spring needs to be cooled based on the gas temperature inside the air spring;

[0024] When the air inside the air spring needs to be cooled, the air outlet temperature of the air conditioner and the external ambient air temperature are collected, and the on-off of the first pipeline and the second pipeline are controlled based on the air outlet temperature of the air conditioner and the external ambient air temperature.

[0025] According to a low-temperature air supply method for an air suspension provided in the present application, the method for judging whether it is necessary to cool the gas inside the air spring based on the internal gas temperature of the air spring includes: comparing the internal gas temperature of the air spring with a first set temperature; if the internal gas temperature of the air spring is not less than the first set temperature, it is judged that low-temperature gas needs to be supplied to the inside of the air spring; if the internal gas temperature of the air spring is less than the first set temperature, it is judged that it is not necessary to supply low-temperature gas to the inside of the air spring.

[0026] According to a low-temperature air supply method for an air suspension provided in the present application, the method for controlling the on-off of a first pipeline and a second pipeline based on the air-conditioning outlet temperature and the external ambient gas temperature includes: when it is necessary to provide low-temperature gas to the inside of an air spring, the air-conditioning outlet temperature is compared with the external ambient gas temperature; if the air-conditioning outlet temperature is lower than the external ambient gas temperature, the first pipeline is connected and the second pipeline is disconnected so that the low-temperature gas from the air-conditioning outlet enters the air spring through the air compressor; if the air-conditioning outlet temperature is not lower than the external ambient gas temperature, the second pipeline is connected and the first pipeline is disconnected so that the low-temperature gas from the external environment enters the air spring through the air compressor.

[0027] According to a low-temperature air supply method for an air suspension provided in the present application, after the compressor supplies low-temperature gas to the air spring for a set time, the gas temperature inside the air spring is compared with a second set temperature. If the gas temperature inside the air spring is not greater than the second set temperature, the supply of low-temperature gas to the inside of the air spring is stopped; if the gas temperature inside the air spring is greater than the second set temperature, the supply of low-temperature gas to the inside of the air spring continues.

[0028] The advantages of the present application are as follows: 1. The low-temperature air supply method for an air suspension provided by the present application introduces two pipeline structures, which are respectively connected to the air outlet of the air conditioner and the external atmospheric environment. When the air spring needs to cool the internal gas, low-temperature gas can be supplied to the air spring, so that the gas inside the air spring is quickly cooled, and the cooling effect is excellent. The air spring can always be kept in a good use condition, thereby extending the service life of the air spring. In addition, the present application only adds two pipeline structures, and the improvement is minimal. The cost is extremely low, and it does not occupy too much space. There is no need to configure special cooling equipment. The entire operation and control method is also extremely simple, low-cost to use, and suitable for large-scale promotion and application.

[0029] 2. This application adds a first temperature sensor inside the air spring. The first temperature sensor can directly obtain the temperature of the gas inside the air spring. The obtained temperature more intuitively reflects the internal temperature of the air spring, and the subsequent adjustment and control of the air spring is more accurate. Temperature sensors are set at the inlet end of the second pipeline and the air outlet of the air conditioner. They can directly obtain the external ambient gas temperature and the air outlet temperature of the air conditioner, and can filter out the gas temperature with a lower temperature, which facilitates the rapid cooling and adjustment of the gas inside the air spring.

[0030] 3. This application provides a connecting pipe between the air compressor and the first and second pipes, and uses a three-way valve on the connecting pipe to control the on / off of the first and second pipes. This can significantly reduce the complexity of the entire pipe structure, facilitate the layout of the control circuit, occupy less space, and further reduce the cost of manufacture and use.

[0031] 4. This application determines whether low-temperature gas needs to be supplied to the air spring by comparing the internal gas temperature of the air spring with a first set temperature. This determination module can be integrated into the control system to automatically and intelligently control the air spring, accurately determining whether low-temperature gas needs to be supplied to the air spring, thereby improving the performance and service life of the air spring.

[0032] 5. The second judgment module constructed in this application is used to compare the external ambient air temperature and the air conditioner outlet temperature. Its purpose is to screen out the optimal gas temperature. If the air conditioner outlet temperature is low, then the air conditioner outlet is directly used to supply low-temperature gas to the air spring. If the external ambient air temperature is low, then the external ambient air is directly used to supply low-temperature gas to the air spring. The effect of lowering the internal gas temperature of the air spring is better and the lowering efficiency is higher.

[0033] 6. This application sets a third judgment module, which is used to determine whether it is necessary to continue to supply low-temperature gas to the air spring by collecting the temperature of the gas inside the air spring after supplying low-temperature gas to the air spring for a period of time. If the supply of low-temperature gas is no longer necessary, the supply of low-temperature gas is disconnected to avoid unnecessary loss caused by continuous supply of gas to the air spring.

[0034] 7. The present application also provides a method for supplying low-temperature air for an air suspension. The low-temperature air supply method of the present application is extremely simple, easy to operate and use, and can be fully automated and intelligently performed. The present application supplies low-temperature air to the air spring through low-temperature air from the external environment and the air outlet of the air conditioner. This method can quickly reduce the internal gas temperature of the air spring, so that the air spring is always in good operating conditions, thereby improving the performance and service life of the air spring. In addition, this method does not require the construction of cooling equipment on the vehicle, and the modification of the vehicle is minimal. The cost of construction and use is extremely low, making it suitable for large-scale promotion and application.

[0035] 8. The present application provides a very simple method for determining whether to supply low-temperature gas to the air spring. It only requires comparing the temperature of the gas inside the air spring with a first set temperature. The control operation is entirely based on the usage status of the air spring, and the gas supply to the air spring can be adjusted very quickly.

[0036] 9. This application compares the temperatures of the external ambient gas and the air at the air conditioner outlet to determine which gas has a lower temperature. This allows the gas with the lower temperature to be selected as the low-temperature gas to be supplied to the air spring, thereby cooling the air spring with higher efficiency and faster cooling.

[0037] 10. After supplying low-temperature gas to the air spring for a period of time, this application needs to perform periodic judgment. If the internal gas temperature of the air spring meets the standard, there is no need to continue to supply low-temperature gas to the air spring, so as to avoid unnecessary losses. The method of judging whether to continue to supply low-temperature gas to the air spring is very simple and easy to operate.

[0038] The low-temperature air supply system for air suspension of the present application has a simple structure and is easy to operate and use. It can provide low-temperature gas to the air spring to cool it down, so that the air spring is always in a good temperature environment, improving the use effect and extending the service life. The entire system requires minimal changes to the vehicle, and the cost of manufacture and use is extremely low. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 : Schematic diagram of the structure of the low-temperature air supply system for the air suspension of the present application;

[0040] Figure 2 : Flowchart of the low-temperature air supply method for air suspension of the present application;

[0041] Among them: 1—air spring; 2—air compressor; 3—first pipeline; 4—second pipeline; 5—connecting pipe; 6—three-way valve; 7—first temperature sensor; 8—second temperature sensor; 9—third temperature sensor. DETAILED DESCRIPTION

[0042] The embodiments of the present invention are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0043] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0046] The present application relates to a low-temperature air supply system for an air suspension. The supply system of the present application is used to supply low-temperature gas to the air spring of the air suspension when the temperature of the gas inside the air spring rises above its optimal temperature operating range, causing the temperature of the gas inside the air spring to drop rapidly, keeping the air spring within the appropriate operating temperature range, improving the performance of the air spring, and extending the service life of the air spring. At the same time, the supply system of the present application, by setting up two pipelines, connecting the external ambient gas and the air outlet of the air conditioner respectively, can select appropriate low-temperature gas and discharge it into the air spring to cool the gas inside the air spring. This operation method does not require large-scale modifications to the vehicle. The scale of the modification is very small, the cost of production and use is extremely low, and it is suitable for large-scale promotion and application.

[0047] like Figures 1-2As shown, a low-temperature air supply system for an air suspension of the present application includes a pipeline module, a temperature acquisition module, and a control module; the pipeline module includes a first pipeline 3 and a second pipeline 4; one end of the first pipeline 3 is connected to the air outlet of the air conditioner, and the other end is connected to the inlet of the air compressor 2 that supplies air to the air spring 1; one end of the second pipeline 4 is connected to the external atmosphere, and the other end is connected to the inlet of the air compressor 2. In actual application, the inlet of the first pipeline 3 is not limited to the air outlet of the air conditioner, as long as it is the exhaust vent of the vehicle air conditioning system to the passenger compartment, as long as the vehicle air conditioner can provide low-temperature gas to the air compressor 2; the inlet of the second pipeline 4 needs to be installed in a place on the vehicle body away from the engine, power battery, or exhaust pipe where the temperature is too high to prevent the incoming gas from being affected by the above-mentioned heat-generating components.

[0048] The temperature acquisition module is used to collect the internal gas temperature of the air spring 1, the external ambient temperature and the gas temperature at the air outlet of the air conditioner.

[0049] The control module controls the first pipeline 3 or the second pipeline 4 to be connected to the air compressor 2 based on the internal gas temperature of the air spring 1, the external ambient temperature and the air temperature of the air conditioning outlet, thereby adjusting the internal gas temperature of the air spring 1.

[0050] In practical application, the supply method of the low-temperature air supply system for the air suspension of the present application includes the following steps:

[0051] S1, collecting the temperature of the gas inside the air spring 1, and judging whether it is necessary to cool the gas inside the air spring 1 based on the temperature of the gas inside the air spring 1;

[0052] The purpose of collecting the temperature of the gas inside the air spring 1 is to determine whether it is necessary to supply low-temperature gas to the air spring 1. If so, the subsequent steps are performed. If not, the subsequent steps are not performed. The determination of whether it is necessary to supply low-temperature gas to the air spring 1 is the basis of the supply method of the present application.

[0053] S2. When the air inside the air spring 1 needs to be cooled, the air outlet temperature of the air conditioner and the external ambient air temperature are collected, and the on-off of the first pipeline 3 and the second pipeline 4 are controlled based on the air outlet temperature of the air conditioner and the external ambient air temperature;

[0054] The present application supplies low-temperature gas to the air spring 1 based on the air-conditioning outlet and the external ambient gas. In actual application, if the vehicle is traveling in an area with a lower temperature, the air conditioner may be in a heating state. If the gas from the air-conditioning outlet is directly introduced into the air spring 1, the purpose of lowering the internal gas temperature of the air spring 1 may not be achieved. At this time, the temperature of the external ambient gas may be lower. It is obviously more reasonable to use the temperature of the external ambient gas to cool the air spring 1; if the vehicle is traveling in an area with a higher temperature, the temperature of the external ambient gas is higher. Directly using the external ambient gas to supply air to the air spring 1 may not achieve a good effect, or the internal gas temperature of the air spring 1 drops very slowly, affecting its use. At this time, the air conditioner may be in cooling mode, and the low-temperature gas from the air-conditioning outlet can be introduced into the air compressor 2 to supply it to the air spring 1. This method has a better cooling effect on the gas in the air spring 1 and a higher cooling efficiency.

[0055] In some embodiments of the present application, this embodiment optimizes the above-mentioned temperature acquisition module. Specifically, the temperature acquisition module includes a first temperature sensor 7, a second temperature sensor 8 and a third temperature sensor 9. The first temperature sensor 7 is arranged inside the air spring 1 to collect the gas temperature inside the air spring 1. The first temperature sensor 7 is inside the air spring 1 and directly collects the temperature of the gas inside the air spring 1. The obtained temperature value intuitively reflects the current gas temperature inside the air spring 1; the second temperature sensor 8 is arranged at the inlet end of the second pipeline 4 to collect the external environment gas temperature. The second temperature sensor 8 is directly arranged at the inlet end of the second pipeline 4, or near the inlet end of the second pipeline 4, so that the temperature of the gas entering the second pipeline 4 can be directly obtained; the third temperature sensor 9 is arranged at the air outlet of the air conditioner to collect the gas temperature of the air outlet of the air conditioner. The third temperature sensor 9 directly obtains the temperature of the air outlet of the air conditioner, which is convenient for subsequent comparison operations.

[0056] In other embodiments of the present application, the present embodiment optimizes the above pipeline module. Specifically, Figure 1 As shown, the pipeline module includes a connecting pipe 5, one end of which is connected to the inlet end of the air compressor 2, and the other end is connected to the outlet ends of the first pipeline 3 and the second pipeline 4 through a three-way valve 6; the three-way valve 6 is connected to the control module signal.

[0057] By providing the connecting pipe 5, the connection with the air compressor 2 is facilitated, and the three-way valve 6 is provided to facilitate the arrangement of the control circuit. The entire pipeline structure layout occupies less space, has a more reasonable design, and is more convenient to control.

[0058] In a further embodiment of the present application, this embodiment optimizes the above-mentioned control module. Specifically, the control module includes a first judgment module, a second judgment module and a third judgment module; the first judgment module is used to compare the internal gas temperature of the air spring 1 with the first set temperature, and when the internal gas temperature of the air spring 1 is not less than the first set temperature, it is judged that low-temperature gas needs to be provided to the inside of the air spring 1; when the internal gas temperature of the air spring 1 is less than the first set temperature, it is judged that low-temperature gas does not need to be provided to the inside of the air spring 1.

[0059] The first judgment module is used to judge whether it is necessary to provide low-temperature gas to the air spring 1;

[0060] The second judgment module is used to compare the air-conditioning outlet temperature with the external ambient gas temperature when it is necessary to provide low-temperature gas to the inside of the air spring 1, and to make a judgment to connect the first pipeline 3 and cut off the second pipeline 4 when the air-conditioning outlet temperature is lower than the external ambient gas temperature; and to make a judgment to cut off the first pipeline 3 and connect the second pipeline 4 when the air-conditioning outlet temperature is not lower than the external ambient gas temperature.

[0061] The second judgment module judges whether the air spring 1 needs to be provided with low-temperature gas from the external environment or low-temperature gas from the air-conditioning outlet;

[0062] The third judgment module is used to compare the temperature of the gas inside the air spring 1 with the second set temperature after the compressor supplies the low-temperature gas to the air spring 1 for a set time, and to make a judgment to stop supplying the low-temperature gas to the inside of the air spring 1 when the temperature of the gas inside the air spring 1 is not greater than the second set temperature, and to make a judgment to continue supplying the low-temperature gas to the inside of the air spring 1 when the temperature of the gas inside the air spring 1 is greater than the second set temperature;

[0063] The third judgment module is used to judge whether it is necessary to continue or stop supplying low-temperature gas to the air spring 1 .

[0064] The judgment instructions for the low-temperature gas supply in this embodiment can be obtained through the first judgment module, the second judgment module and the third judgment module. The control module can control the above-mentioned three-way valve 6 based on these judgment instructions to achieve the purpose of controlling the pipeline to regulate the low-temperature gas supply.

[0065] When specific control is required, Figure 2 As shown, the gas temperature inside the air spring 1 is compared with the first set temperature. If the gas temperature inside the air spring 1 is not less than the first set temperature, it is determined that low-temperature gas needs to be supplied to the inside of the air spring 1; if the gas temperature inside the air spring 1 is less than the first set temperature, it is determined that low-temperature gas does not need to be supplied to the inside of the air spring 1;

[0066] When it is necessary to supply low-temperature gas to the inside of the air spring 1, the temperature of the air-conditioning outlet is compared with the temperature of the external ambient air. If the temperature of the air-conditioning outlet is lower than the temperature of the external ambient air, the first pipeline 3 is connected and the second pipeline 4 is cut off so that the low-temperature gas at the air-conditioning outlet enters the air spring 1 through the air compressor 2. If the temperature of the air-conditioning outlet is not lower than the temperature of the external ambient air, the second pipeline 4 is connected and the first pipeline 3 is cut off so that the low-temperature gas from the external environment enters the air spring 1 through the air compressor 2.

[0067] After the compressor supplies low-temperature gas to the air spring 1 for a set time, the gas temperature inside the air spring 1 is compared with the second set temperature. If the gas temperature inside the air spring 1 is not greater than the second set temperature, the supply of low-temperature gas to the air spring 1 is stopped; if the gas temperature inside the air spring 1 is greater than the second set temperature, the supply of low-temperature gas to the air spring 1 continues.

[0068] The first set temperature of the present application is 60°C to 100°C, and the second set temperature is 80°C to 100°C.

[0069] An embodiment of the present application provides a computer-readable storage medium, including: computer instructions stored in the computer-readable storage medium; when the computer instructions are executed on a computing device, the computing device performs the operations in the above-mentioned embodiments.

[0070] An embodiment of the present application provides a computer program product containing instructions, including a computer program or instructions. When the computer program or instructions are executed on a computer, the computing device is caused to perform the operations in the above-mentioned embodiments.

[0071] The above embodiments are implemented in whole or in part through software, hardware, firmware, or any other combination. When implemented using software, the above embodiments are implemented in whole or in part in the form of a computer program product. A computer program product comprises at least one computer instruction. When the computer program instruction is loaded or executed on a computer, the processes or functions according to the embodiments of the present invention are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programming device. The computer instructions are stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions are transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium is any computer-accessible medium or a data storage node such as a server or data center that contains at least one computer-readable medium. The computer-readable medium can be a magnetic medium (e.g., a floppy disk, hard disk, magnetic tape), an optical medium (e.g., a high-density digital video disc (DVD), or a semiconductor medium).

[0072] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-temperature air supply system for an air suspension, characterized in that: include, A pipeline module, the pipeline module comprising a first pipeline and a second pipeline; one end of the first pipeline is connected to the air outlet of the air conditioner, and the other end is connected to the inlet of the air compressor that supplies air to the air spring; one end of the second pipeline is connected to the external atmosphere, and the other end is connected to the inlet of the air compressor; A temperature acquisition module is used to collect the internal gas temperature of the air spring, the external ambient temperature, and the gas temperature at the air outlet of the air conditioner; a control module, wherein the control module controls the first pipeline or the second pipeline to communicate with the air compressor based on the internal gas temperature of the air spring, the external ambient temperature, and the air temperature of the air conditioner outlet, thereby adjusting the internal gas temperature of the air spring; The control module includes: a first judgment module, configured to compare the temperature of the gas inside the air spring with a first set temperature, and to determine that low-temperature gas needs to be supplied to the interior of the air spring when the temperature of the gas inside the air spring is not less than the first set temperature, and to determine that low-temperature gas does not need to be supplied to the interior of the air spring when the temperature of the gas inside the air spring is less than the first set temperature; a second judgment module, the second judgment module being configured to compare the air conditioner outlet temperature with the external ambient air temperature when it is necessary to provide low-temperature gas to the interior of the air spring, and to make a judgment to connect the first pipeline and cut off the second pipeline when the air conditioner outlet temperature is lower than the external ambient air temperature, and to make a judgment to cut off the first pipeline and connect the second pipeline when the air conditioner outlet temperature is not lower than the external ambient air temperature; The third judgment module is used to compare the internal gas temperature of the air spring with the second set temperature after the compressor supplies low-temperature gas to the air spring for a set time, and to make a judgment to stop supplying low-temperature gas to the inside of the air spring when the internal gas temperature of the air spring is not greater than the second set temperature, and to make a judgment to continue supplying low-temperature gas to the inside of the air spring when the internal gas temperature of the air spring is greater than the second set temperature.

2. A low-temperature air supply system for an air suspension according to claim 1, characterized in that: The temperature acquisition module includes: a first temperature sensor, which is disposed inside the air spring and is used to collect the gas temperature inside the air spring; a second temperature sensor, which is disposed at the inlet end of the second pipeline and is used to collect the temperature of the external ambient gas; The third temperature sensor is arranged at the air outlet of the air conditioner and is used to collect the gas temperature at the air outlet of the air conditioner.

3. The low-temperature air supply system for an air suspension according to claim 1, characterized in that: The pipeline module includes: A connecting pipe, one end of which is connected to the inlet of the air compressor, and the other end of which is connected to the outlet of the first pipeline and the second pipeline through a three-way valve; the three-way valve is connected to the control module signal.

4. A method for supplying low-temperature air for an air suspension, characterized in that: The method is operated using a low-temperature air supply system for air suspension according to any one of claims 1 to 3, comprising: Collect the gas temperature inside the air spring and determine whether the gas inside the air spring needs to be cooled based on the gas temperature inside the air spring; When the air inside the air spring needs to be cooled, the air outlet temperature of the air conditioner and the external ambient air temperature are collected, and the on-off of the first pipeline and the second pipeline are controlled based on the air outlet temperature of the air conditioner and the external ambient air temperature.

5. The method for supplying low-temperature air for an air suspension according to claim 4, wherein: The method for judging whether it is necessary to cool the gas inside the air spring based on the gas temperature inside the air spring includes: comparing the gas temperature inside the air spring with a first set temperature; if the gas temperature inside the air spring is not less than the first set temperature, judging that low-temperature gas needs to be provided to the inside of the air spring; if the gas temperature inside the air spring is less than the first set temperature, judging that it is not necessary to provide low-temperature gas to the inside of the air spring.

6. The method for supplying low-temperature air for an air suspension according to claim 4, wherein: The method for controlling the on-off of the first pipeline and the second pipeline based on the air-conditioning outlet temperature and the external ambient gas temperature includes: when it is necessary to provide low-temperature gas to the inside of the air spring, the air-conditioning outlet temperature is compared with the external ambient gas temperature; if the air-conditioning outlet temperature is lower than the external ambient gas temperature, the first pipeline is connected and the second pipeline is disconnected so that the low-temperature gas from the air-conditioning outlet enters the air spring through the air compressor; if the air-conditioning outlet temperature is not lower than the external ambient gas temperature, the second pipeline is connected and the first pipeline is disconnected so that the low-temperature gas from the external environment enters the air spring through the air compressor.

7. The low-temperature air supply method for an air suspension according to claim 4, wherein: After the compressor supplies low-temperature gas to the air spring for a set time, the gas temperature inside the air spring is compared with the second set temperature. If the gas temperature inside the air spring is not greater than the second set temperature, the supply of low-temperature gas to the air spring is stopped; if the gas temperature inside the air spring is greater than the second set temperature, the supply of low-temperature gas to the air spring continues.

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