Deflation recycling method, device, controller and system for open air spring system

Abstract

The invention discloses a method, a device, a controller and a system for recycling deflation of an open air spring system, and relates to the technical field of suspension height control, the method is realized on the basis that an air pipeline is connected to a compressor and a shock absorber behind a silencer, and the method comprises the following steps: after gas exhausted by an air spring passes through an exhaust valve, an air filter and the silencer, the exhaust valve is connected with the air filter; the air is guided and blown to the outer walls of the compressor and the shock absorber through the air pipeline, so that the purpose of air circulation and cooling is achieved. According to the invention, high-efficiency circulation and utilization of gas can be realized, so that the purpose of saving energy is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of suspension height control, and particularly to a method, device, controller and system for reusing the air release of an open air spring system. Background Art

[0002] An air suspension system is generally configured with a gas supply system to achieve the function of raising and lowering the vehicle height. The air suspension consists of an air spring, an air pump, a distribution valve, an air storage tank and a controller. According to the degree of air exchange between the system and the outside air, the air suspension can be divided into two categories: an open system and a closed system. When the vehicle body needs to be lowered in an open air spring system, the distribution valve opens the corresponding passage, and the high-pressure gas in the air spring is directly discharged to the atmosphere.

[0003] When the compressor of the air spring system is running normally, heat will be continuously generated due to reasons such as copper loss and iron loss. When the temperature of the compressor reaches a certain level, the startup of the compressor will be restricted, which will in turn affect the use of the air spring. Therefore, the heat dissipation problem must be considered. At present, the heat dissipation of the compressor is only the traditional waiting for cooling. Generally, it takes at least 10 minutes to start the compressor again, and the short action time will cause it to become stagnant and overheat again, greatly affecting the use of the air spring function. On the other hand, the shock absorber assembly of the continuous damping control (CDC) in the suspension system also generates heat during long-term operation and has poor heat dissipation effect.

[0004] Therefore, how to achieve the heat dissipation of the compressor and the shock absorber on the premise of energy conservation is a technical problem that needs to be solved urgently at present. Summary of the Invention

[0005] The embodiments of the present invention provide a method, device, controller and system for reusing the air release of an open air spring system, which can divert the gas released from the air spring to atmospheric pressure into the compressor and the shock absorber, and dissipate heat from the compressor and the shock absorber by spraying high-pressure gas. This method can reuse the air spring gas, thereby achieving the purpose of energy conservation and enhancing the overall performance of the suspension system.

[0006] In a first aspect, the present invention provides a method for reusing the air release of an open air spring system, which is realized by connecting an air pipe behind the muffler to the compressor and the shock absorber. The method includes:

[0007] After the gas discharged from the air spring passes through the exhaust valve, the air filter and the muffler, it is diverted through the air pipe and blown onto the outer walls of the compressor and the shock absorber to achieve the purpose of air circulation and temperature reduction.

[0008] In some examples, before the gas is diverted through the air pipe and blown onto the outer walls of the compressor and the shock absorber, the method further includes:

[0009] Estimate the gas flow rate through the valve body during the deflation process, and monitor the current open / closed states of the air spring switching valve and the exhaust valve.

[0010] In some examples, after estimating the gas flow rate through the valve body during the deflation process and monitoring the current open / closed states of the air spring switching valve and the exhaust valve, the method further includes:

[0011] If the gas flow rate through the valve body during the deflation process is greater than a preset flow rate value, and after the current air spring switching valve and the exhaust valve are both open, monitor the compressor temperature, determine the temperature rise and temperature range of the compressor based on the compressor temperature, and judge the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor;

[0012] Monitor the shock absorber temperature, and judge the cooling requirement of the shock absorber according to the shock absorber temperature.

[0013] In some examples, the judging the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor includes:

[0014] When the compressor temperature is less than the first compressor temperature preset value and the temperature rise of the compressor < the first compressor temperature rise preset value, no compressor cooling is required;

[0015] When the compressor temperature is greater than or equal to the first compressor temperature preset value and less than the second compressor temperature preset value, or when the temperature rise of the compressor is greater than or equal to the first compressor temperature rise preset value and less than the second compressor temperature rise preset value, compressor cooling is required and set as the first compressor cooling requirement;

[0016] When the compressor temperature is greater than or equal to the second compressor temperature preset value, or when the compressor temperature rise is greater than or equal to the second compressor temperature rise preset value, compressor cooling is required and set as the second compressor cooling requirement, where the second compressor temperature preset value is greater than the first compressor temperature preset value, and the second compressor temperature rise preset value is greater than the first compressor temperature rise preset value.

[0017] In some examples, the judging the cooling requirement of the shock absorber according to the shock absorber temperature includes:

[0018] When the shock absorber temperature is less than the first shock absorber temperature preset value, no shock absorber cooling is required;

[0019] When the shock absorber temperature is greater than or equal to the first shock absorber temperature preset value and less than or equal to the second shock absorber temperature preset value, shock absorber cooling is required and set as the first shock absorber cooling requirement;

[0020] When the shock absorber temperature is greater than the second shock absorber temperature preset value, shock absorber cooling is required and set as the second shock absorber cooling requirement.

[0021] In some examples, the air guided through the air duct to blow against the outer walls of the compressor and the shock absorber includes:

[0022] According to the cooling requirements of the compressor and the shock absorber, guide the air through the air duct to blow against the outer walls of the compressor and / or the shock absorber.

[0023] In some examples, the guiding the air through the air duct to blow against the outer walls of the compressor and / or the shock absorber according to the cooling requirements of the compressor and the shock absorber includes:

[0024] When compressor cooling is required and it is the second compressor cooling requirement, in response to the compressor cooling requirement, guide the air through the air duct to blow against the outer wall of the compressor;

[0025] When compressor cooling is required and it is the first compressor cooling requirement, at this time, if shock absorber cooling is required and it is the second shock absorber cooling requirement, then in response to the shock absorber cooling requirement, guide the air through the air duct to blow against the outer wall of the shock absorber; if shock absorber cooling is required and it is the first shock absorber cooling requirement, then first respond to the compressor cooling requirement and then respond to the shock absorber cooling requirement; if shock absorber cooling is not required, then guide the air through the air duct to blow against the outer wall of the compressor;

[0026] When compressor cooling is not required, guide the air through the air duct to blow against the outer wall of the shock absorber.

[0027] In a second aspect, the present invention provides an open air spring system air release and reuse device, including: an air duct and a processing module;

[0028] Wherein, connect the air duct behind the muffler to the compressor and the shock absorber;

[0029] The processing module is used to, after the gas discharged from the air spring passes through the exhaust valve, the air filter and the muffler, guide the air through the air duct to blow against the outer walls of the compressor and the shock absorber, so as to achieve the purpose of air circulation and temperature reduction.

[0030] In a third aspect, the present invention provides an air suspension controller including the above device.

[0031] In a fourth aspect, the present invention provides an open air suspension system including the above air suspension controller.

[0032] Generally speaking, compared with the prior art through the above technical solutions conceived by the present invention, the following beneficial effects can be achieved:

[0033] (1) By connecting an air duct behind the muffler to the compressor and the shock absorber, after the gas discharged from the air spring passes through the exhaust valve, the air filter and the muffler, it is guided by the air duct and blown towards the outer walls of the compressor and the shock absorber to achieve the purpose of air circulation and cooling. The discharged gas can be reused, energy consumption can be saved, and the purpose of recovering waste gas and improving the system function can be achieved.

[0034] (2) Monitor the switch state of the air spring exhaust valve and the temperature of the compressor, and control the discharge of the air release according to the temperature rise and temperature range of the compressor. When it is determined that the compressor does not need cooling, select to cool the gas to the shock absorber to achieve the efficient circulation and utilization of the gas, and then achieve the purpose of energy saving. Description of the Drawings

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0036] Figure 1 It is a schematic diagram of the air duct connection provided by the embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the method for reusing the air release of the open-type air spring system provided by the embodiment of the present invention;

[0038] Figure 3 It is a schematic diagram of the method for reusing the air release of the open-type air spring system provided by the embodiment of the present invention. Detailed Embodiments

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0040] In the following description, specific embodiments of the present invention will be described with reference to steps and symbols performed by one or more computers, unless otherwise specified. Therefore, these steps and operations will be referred to several times as being performed by a computer. As used herein, a computer performing includes operations of a computer processing unit that represents data in a structured form. This operation transforms the data or maintains its position in the computer's memory system, which can reconfigure or otherwise change the operation of the computer in a manner well known to those skilled in the art. The data structure maintained by the data is a physical location in the memory, which has specific characteristics defined by the data format. However, the principles of the present invention are described in the above text, which does not represent a limitation. Those skilled in the art will understand that the following various steps and operations can also be implemented in hardware.

[0041] As used herein, the term "module" or "unit" can be regarded as a software object executed on the computing system. Different components, modules, engines, and services herein can be regarded as implementation objects on the computing system. The devices and methods herein are preferably implemented in software, but can also be implemented in hardware, all within the protection scope of the present invention.

[0042] Those skilled in the art of this technology can understand that, unless specifically stated otherwise, the singular forms "a", "an", "the", and "said" used herein can also include the plural forms. It should be further understood that the term "including" used in the specification of the present invention means the presence of features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is "connected" or "coupled" to another element, it can be directly connected or coupled to other elements, or there can also be intermediate elements. In addition, the "connection" or "coupling" used herein can include wireless connection or wireless coupling. The phrase "and / or" used herein includes all or any unit and all combinations of one or more related listed items.

[0043] In the first embodiment of the present invention, a method for deflating and reusing an open air spring system is provided. As Figure 1 shown, it is realized by connecting an air duct behind the muffler to the compressor and the shock absorber. As Figure 2 shown, the method includes:

[0044] After the gas discharged from the air spring passes through the exhaust valve, the air filter, and the muffler, it is guided by the air duct and blown towards the outer walls of the compressor and the shock absorber to achieve the purpose of air circulation and temperature reduction.

[0045] In some instances, before being guided by the air duct and blown towards the outer walls of the compressor and the shock absorber, the method further includes:

[0046] Estimate the gas flow rate through the valve body during the air release process, and monitor the current open / closed states of the air spring switching valve and the exhaust valve.

[0047] Among them, when the air spring is lowered, the corresponding air spring switching valve opens, and the gas flow rate through the valve body during the air release process can be estimated based on the current pressure, volume of the air spring, and the cross-sectional area of the switching valve body.

[0048] In some examples, after estimating the gas flow rate through the valve body during the air release process and monitoring the current open / closed states of the air spring switching valve and the exhaust valve, the method further includes:

[0049] If the gas flow rate through the valve body during the air release process is greater than the preset flow rate value, and after both the current air spring switching valve and the exhaust valve are opened, monitor the compressor temperature, determine the temperature rise and temperature range of the compressor based on the compressor temperature, and judge the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor;

[0050] Monitor the shock absorber temperature, and judge the cooling requirement of the shock absorber according to the shock absorber temperature.

[0051] In some examples, judging the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor includes:

[0052] When the compressor temperature is less than the first compressor temperature preset value and the temperature rise of the compressor < the first compressor temperature rise preset value, no compressor cooling is required;

[0053] When the compressor temperature is greater than or equal to the first compressor temperature preset value and less than the second compressor temperature preset value, or when the temperature rise of the compressor is greater than or equal to the first compressor temperature rise preset value and less than the second compressor temperature rise preset value, compressor cooling is required and set as the first compressor cooling requirement;

[0054] When the compressor temperature is greater than or equal to the second compressor temperature preset value, or when the compressor temperature rise is greater than or equal to the second compressor temperature rise preset value, compressor cooling is required and set as the second compressor cooling requirement, where the second compressor temperature preset value is greater than the first compressor temperature preset value, and the second compressor temperature rise preset value is greater than the first compressor temperature rise preset value.

[0055] In some examples, judging the cooling requirement of the shock absorber according to the shock absorber temperature includes:

[0056] When the shock absorber temperature is less than the first shock absorber temperature preset value, no shock absorber cooling is required;

[0057] When the shock absorber temperature is greater than or equal to the first shock absorber temperature preset value and less than or equal to the second shock absorber temperature preset value, shock absorber cooling is required and it is set as the first shock absorber cooling requirement;

[0058] When the shock absorber temperature is greater than the second shock absorber temperature preset value, shock absorber cooling is required and it is set as the second shock absorber cooling requirement.

[0059] In some instances, it is diverted and blown towards the compressor and the outer wall of the shock absorber through an air duct, including:

[0060] According to the cooling requirements of the compressor and the shock absorber, it is diverted and blown towards the compressor and / or the outer wall of the shock absorber through an air duct.

[0061] In some instances, according to the cooling requirements of the compressor and the shock absorber, it is diverted and blown towards the compressor and / or the outer wall of the shock absorber through an air duct, including:

[0062] When compressor cooling is required and it is the second compressor cooling requirement, in response to the compressor cooling requirement, it is diverted and blown towards the outer wall of the compressor through the air duct;

[0063] When compressor cooling is required and it is the first compressor cooling requirement, at this time, if shock absorber cooling is required and it is the second shock absorber cooling requirement, then in response to the shock absorber cooling requirement, it is diverted and blown towards the outer wall of the shock absorber through the air duct; if shock absorber cooling is required and it is the first shock absorber cooling requirement, then first in response to the compressor cooling requirement and then in response to the shock absorber cooling requirement; if shock absorber cooling is not required, then it is diverted and blown towards the outer wall of the compressor through the air duct;

[0064] When compressor cooling is not required, it is diverted and blown towards the outer wall of the shock absorber through the air duct.

[0065] As a specific implementation method, as Figure 3 shown, the air suspension controller monitors the gas flow rate and the cooling requirements requested by the four spring switching valves, the exhaust valve, and the compressor. The compressor cooling requirement is achieved by monitoring the compressor temperature and the temperature rise. When the temperature < the first compressor temperature preset value T Low and the temperature rise < the first compressor temperature rise preset value t Low (℃ / s), the cooling request is sent as 0. When T Low ≤ temperature < the second compressor temperature preset value T High or t Low ≤ temperature rise < the second compressor temperature rise preset value t High , the cooling request is sent as 1. When the temperature ≥ T High or the temperature rise ≥ t High , the cooling request is sent as 2.

[0066] Meanwhile, monitor the temperature of the shock absorber. When the temperature < the first shock absorber temperature preset value D Low , the cooling request is sent as 0. When D Low ≤ temperature ≤ D High , the cooling request is sent as 1. When the temperature > the second shock absorber temperature preset value D High , the cooling request is sent as 2.

[0067] When the compressor request = 2, regardless of the shock absorber demand, the compressor request is preferentially responded to;

[0068] When the compressor request = 1 and the shock absorber request = 2, the shock absorber request is responded to; when the compressor request = 1 and the shock absorber request = 1, the compressor request is responded to first and then the shock absorber request; when the compressor request = 1 and the shock absorber request = 0, the compressor request is responded to;

[0069] When the compressor request = 0, all the gas is used to cool the shock absorber.

[0070] In the second embodiment of the present invention, to facilitate better implementation of the method provided in the embodiment of the present invention, the embodiment of the present invention further provides a device based on the above method. The meanings of the nouns are the same as those in the above method, and the specific implementation details can refer to the description in the method embodiment. The device includes: an air duct and a processing module;

[0071] Among them, connect the air duct behind the muffler to the compressor and the shock absorber;

[0072] The above processing module is used to, after the gas discharged from the air spring passes through the exhaust valve, the air filter and the muffler, guide and blow it through the air duct to the outer walls of the compressor and the shock absorber to achieve the purpose of air circulation and temperature reduction.

[0073] In some instances, before guiding and blowing through the air duct to the outer walls of the compressor and the shock absorber, the method further includes:

[0074] Estimate the gas flow rate flowing through the valve body during the air release process, and monitor the current open / close states of the air spring switching valve and the exhaust valve.

[0075] Among them, when the air spring descends, the corresponding air spring switching valve opens, and the gas flow rate flowing through the valve body during the air release process can be estimated according to the current pressure, volume of the air spring and the cross-section of the switching valve body.

[0076] In some instances, after estimating the gas flow rate flowing through the valve body during the air release process and monitoring the current open / close states of the air spring switching valve and the exhaust valve, the method further includes:

[0077] If the gas flow rate through the valve body during the air release process is greater than the preset flow rate value, and after the current air spring switching valve and the exhaust valve are both opened, monitor the compressor temperature, determine the temperature rise and temperature range of the compressor based on the compressor temperature, and judge the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor;

[0078] Monitor the shock absorber temperature and judge the cooling requirement of the shock absorber according to the shock absorber temperature.

[0079] In some examples, judging the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor includes:

[0080] When the compressor temperature is less than the first compressor temperature preset value and the temperature rise of the compressor < the first compressor temperature rise preset value, no compressor cooling is required;

[0081] When the compressor temperature is greater than or equal to the first compressor temperature preset value and less than the second compressor temperature preset value, or when the temperature rise of the compressor is greater than or equal to the first compressor temperature rise preset value and less than the second compressor temperature rise preset value, compressor cooling is required and it is set as the first compressor cooling requirement;

[0082] When the compressor temperature is greater than or equal to the second compressor temperature preset value, or when the compressor temperature rise is greater than or equal to the second compressor temperature rise preset value, compressor cooling is required and it is set as the second compressor cooling requirement, where the second compressor temperature preset value is greater than the first compressor temperature preset value and the second compressor temperature rise preset value is greater than the first compressor temperature rise preset value.

[0083] In some examples, judging the cooling requirement of the shock absorber according to the shock absorber temperature includes:

[0084] When the shock absorber temperature is less than the first shock absorber temperature preset value, no shock absorber cooling is required;

[0085] When the shock absorber temperature is greater than or equal to the first shock absorber temperature preset value and less than or equal to the second shock absorber temperature preset value, shock absorber cooling is required and it is set as the first shock absorber cooling requirement;

[0086] When the shock absorber temperature is greater than the second shock absorber temperature preset value, shock absorber cooling is required and it is set as the second shock absorber cooling requirement.

[0087] In some examples, guiding the air flow through the air duct to blow against the outer walls of the compressor and the shock absorber includes:

[0088] According to the cooling requirements of the compressor and the shock absorber, guide the air flow through the air duct to blow against the outer walls of the compressor and / or the shock absorber.

[0089] In some examples, according to the cooling requirements of the compressor and the cooling requirements of the shock absorber, air is guided through the air duct to blow onto the outer wall of the compressor and / or the shock absorber, including:

[0090] When compressor cooling is required and it is the second compressor cooling requirement, in response to the compressor cooling requirement, air is guided through the air duct to blow onto the outer wall of the compressor;

[0091] When compressor cooling is required and it is the first compressor cooling requirement, at this time, if shock absorber cooling is required and it is the second shock absorber cooling requirement, then in response to the shock absorber cooling requirement, air is guided through the air duct to blow onto the outer wall of the shock absorber; if shock absorber cooling is required and it is the first shock absorber cooling requirement, then first respond to the compressor cooling requirement and then respond to the shock absorber cooling requirement; if shock absorber cooling is not required, then air is guided through the air duct to blow onto the outer wall of the compressor;

[0092] When compressor cooling is not required, air is guided through the air duct to blow onto the outer wall of the shock absorber.

[0093] In the third embodiment of the present invention, an air suspension controller including the above device is further provided.

[0094] In the embodiments of the present invention, the air suspension controller may be a terminal device or a server.

[0095] In the embodiments of the present invention, when the air suspension controller is a server, the server may be an independent server or a server network or server cluster composed of servers. For example, the server described in the embodiments of the present invention includes, but is not limited to, a computer, a network host, a single network server, a set of multiple network servers, or a cloud server composed of multiple servers. Among them, the cloud server is composed of a large number of computers or network servers based on cloud computing. In the embodiments of the present invention, communication between the server and the client can be achieved through any communication method, including but not limited to mobile communication based on the 3rd Generation Partnership Project (3GPP), Long Term Evolution (LTE), Worldwide Interoperability for Microwave Access (WiMAX), or computer network communication based on the TCP / IP protocol suite (TCP / IP Protocol Suite, TCP / IP), User Datagram Protocol (UDP) protocol, etc.

[0096] It can be understood that when the air suspension controller used in the embodiments of the present invention is a terminal device, the terminal device can be a device that includes both receiving hardware and transmitting hardware, that is, a device having receiving and transmitting hardware capable of performing two-way communication on a two-way communication link. Such terminal devices can include: cellular or other communication devices, which have a single-line display or a multi-line display or cellular or other communication devices without a multi-line display.

[0097] In the fourth embodiment of the present invention, an open air suspension system including the above air suspension controller is further provided.

[0098] Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by controlling relevant hardware through instructions. The instructions can be stored in a computer-readable storage medium and loaded and executed by a processor.

[0099] Among them, the computer-readable storage medium can include: read-only memory (ROM, Read Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, etc.

[0100] Since the computer program stored in the computer-readable storage medium can execute the steps in any one of the methods provided in the embodiments of the present invention, the beneficial effects achievable by any one of the methods provided in the embodiments of the present invention can be realized. For details, see the previous embodiments and will not be elaborated here.

[0101] The above has introduced in detail an open air spring system air release and reuse method, device, controller and system provided by the embodiments of the present invention. Specific examples are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A method for reusing the air release of an open type air spring system, characterized in that, It is achieved by connecting an air duct behind the muffler to the compressor and the shock absorber. The method includes: After the gas discharged from the air spring passes through the exhaust valve, the air filter and the muffler, it is guided by the air duct and blown towards the outer walls of the compressor and the shock absorber to achieve the purpose of air circulation and temperature reduction.

2. The method according to claim 1, wherein Before being guided by the air duct and blown towards the outer walls of the compressor and the shock absorber, the method further includes: Estimating the gas flow rate through the valve body during the air release process and monitoring the current open / closed states of the air spring switching valve and the exhaust valve.

3. The method according to claim 2, wherein After estimating the gas flow rate through the valve body during the air release process and monitoring the current open / closed states of the air spring switching valve and the exhaust valve, the method further includes: If the gas flow rate through the valve body during the air release process is greater than the preset flow rate value, and both the current air spring switching valve and the exhaust valve are open, then monitor the compressor temperature, determine the temperature rise and temperature range of the compressor based on the compressor temperature, and judge the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor; Monitor the shock absorber temperature and judge the cooling requirement of the shock absorber according to the shock absorber temperature.

4. The method according to claim 3, wherein The judging the cooling requirement of the compressor according to the temperature rise and temperature range of the compressor includes: When the compressor temperature is less than the first compressor temperature preset value and the temperature rise of the compressor < the first compressor temperature rise preset value, no compressor cooling is required; When the compressor temperature is greater than or equal to the first compressor temperature preset value and less than the second compressor temperature preset value, or when the temperature rise of the compressor is greater than or equal to the first compressor temperature rise preset value and less than the second compressor temperature rise preset value, compressor cooling is required and it is set as the first compressor cooling requirement; When the compressor temperature is greater than or equal to the second compressor temperature preset value, or when the compressor temperature rise is greater than or equal to the second compressor temperature rise preset value, compressor cooling is required and it is set as the second compressor cooling requirement, where the second compressor temperature preset value is greater than the first compressor temperature preset value and the second compressor temperature rise preset value is greater than the first compressor temperature rise preset value.

5. The method according to claim 4, characterized in that, The judging the cooling requirement of the shock absorber according to the shock absorber temperature includes: When the shock absorber temperature is less than the first shock absorber temperature preset value, no shock absorber cooling is required; When the shock absorber temperature is greater than or equal to the first shock absorber temperature preset value and less than or equal to the second shock absorber temperature preset value, shock absorber cooling is required and it is set as the first shock absorber cooling requirement; When the shock absorber temperature is greater than the second shock absorber temperature preset value, shock absorber cooling is required and it is set as the second shock absorber cooling requirement.

6. The method according to claim 5, characterized in that, The guiding by the air duct and blowing towards the outer walls of the compressor and the shock absorber includes: According to the cooling requirements of the compressor and the shock absorber, guide and blow towards the outer walls of the compressor and / or the shock absorber through the air duct.

7. The method according to claim 6, characterized in that The guiding according to the cooling requirements of the compressor and the shock absorber and blowing towards the outer walls of the compressor and / or the shock absorber through the air duct includes: When compressor cooling is required and it is the second compressor cooling requirement, in response to the compressor cooling requirement, guide and blow towards the outer wall of the compressor through the air duct; When compressor cooling is required and it is the first compressor cooling requirement, at this time, if shock absorber cooling is required and it is the second shock absorber cooling requirement, then in response to the shock absorber cooling requirement, it is guided through the air duct to blow towards the outer wall of the shock absorber; if shock absorber cooling is required and it is the first shock absorber cooling requirement, then after responding to the compressor cooling requirement, the shock absorber cooling requirement is responded to; if shock absorber cooling is not required, it is guided through the air duct to blow towards the outer wall of the compressor; When compressor cooling is not required, it is guided through the air duct to blow towards the outer wall of the shock absorber.

8. An air release and reuse device for an open type air spring system, characterized in that, Comprising: An air duct and a processing module; Wherein, the air duct is connected to the compressor and the shock absorber behind the muffler; The processing module is configured to, after the gas discharged from the air spring passes through the exhaust valve, the air filter and the muffler, guide it through the air duct to blow towards the outer walls of the compressor and the shock absorber, so as to achieve the purpose of cooling by air circulation.

9. An air suspension controller comprising the open-type air spring system air release and reuse device according to claim 8.

10. An open-type air suspension system comprising the air suspension controller according to claim 9.

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