Air suspension compressor overheat protection control method and device and vehicle

Abstract

The application discloses an overheat protection control method and device of an air suspension compressor and a vehicle. The compressor is used for inflating an air tank and an air spring on the vehicle. The method comprises the following steps: if the temperature of the compressor exceeds an overheat protection temperature during the process that the compressor inflates the air tank, the compressor is controlled to stop working to perform overheat protection on the compressor, and an alarm is prohibited; after the overheat protection is removed, if the pressure of the air tank does not reach a first preset pressure, the compressor is controlled to continue inflating the air tank until the pressure of the air tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than a target pressure of the air tank. Thus, the influence of frequent alarms on users is avoided, and the service life of the compressor is prolonged.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and in particular to an overheat protection control method, device, and vehicle for an air suspension compressor. Background Technology

[0002] An active suspension system refers to a suspension system whose stiffness and damping characteristics are dynamically and adaptively adjusted according to the vehicle's driving conditions, ensuring that the suspension system is always in an optimal damping state. Active suspension systems include air suspension, which uses high-pressure gas as its energy source, and hydro-pneumatic suspension, which uses high-pressure liquid as its energy source. Air suspension mainly consists of components such as the front air spring damper strut, rear air spring, and air supply system (including compressor, distribution valve, air tank, and piping).

[0003] The compressor is the main air source for the air suspension system, primarily used to inflate the air tank and air springs. Because the compressor generates heat during the inflation process, excessive heat will trigger overheat protection. However, current overheat protection methods suffer from repeated overheating triggers, leading to a reduced compressor lifespan.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0005] This invention aims to at least partially solve one of the technical problems in related technologies. Therefore, the purpose of this invention is to provide an overheat protection control method, device, and vehicle for an air suspension compressor. During the process of the compressor filling the air tank, when the compressor experiences overheat protection, the alarm is disabled to reduce the number of alarms and avoid frequent alarms affecting the user. Furthermore, after the overheat protection is released, an intermediate pressure is set to control the compressor's filling of the air tank, thereby preventing frequent overheating of the compressor and extending its service life.

[0006] To achieve the above objectives, a first aspect of the present invention provides an overheat protection control method for an air suspension compressor. The compressor is used to inflate an air tank and air springs in a vehicle. The method includes: during the process of the compressor inflating the air tank, if the temperature of the compressor exceeds the overheat protection temperature, the compressor is controlled to stop working to protect it from overheating, and an alarm is disabled; after the overheat protection is determined to be released, if the pressure of the air tank does not reach a first preset pressure, the compressor is controlled to continue inflating the air tank until the pressure of the air tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than the target pressure of the air tank.

[0007] In some embodiments of the present invention, after controlling the compressor to continue filling the gas tank, the method further includes: if the pressure of the gas tank reaches a first preset pressure, then ending the current filling process; if the temperature of the compressor exceeds the overheat protection temperature, then returning to the step of controlling the compressor to stop working to protect the compressor from overheating and disabling alarm reminders.

[0008] In some embodiments of the present invention, after controlling the compressor to stop working to provide overheat protection for the compressor, the method further includes: after the compressor has cooled for a first preset time, if the temperature of the compressor exceeds the protection release temperature, then controlling the compressor to stop working continues, wherein the protection release temperature is lower than the overheat protection temperature; if the temperature of the compressor does not exceed the protection release temperature, then determining that the overheat protection is released.

[0009] In some embodiments of the present invention, the method further includes: during the process of the compressor filling the gas tank, if the temperature of the compressor does not exceed the overheat protection temperature and the pressure of the gas tank reaches the target pressure, then the filling process is terminated.

[0010] In some embodiments of the present invention, the method further includes: during the process of the compressor charging the air spring, if the temperature of the compressor exceeds the overheat protection temperature, the compressor is controlled to stop working to protect the compressor from overheating, and an alarm is triggered; after the compressor has cooled for a second preset time, if the temperature of the compressor does not exceed the temporary protection release temperature, the overheat protection is temporarily released, and the compressor is controlled to continue charging the air spring until the height of the air suspension reaches the target height or the temperature of the compressor exceeds the overheat protection temperature, wherein the temporary protection release temperature is lower than the overheat protection temperature but higher than the protection release temperature.

[0011] In some embodiments of the present invention, after the compressor has cooled for a second preset time, the method further includes: if the temperature of the compressor exceeds the temporary protection release temperature, then continue to control the compressor to stop working.

[0012] In some embodiments of the present invention, after controlling the compressor to continue charging the air spring, the method further includes: if the height of the air suspension reaches the target height, then after the compressor has cooled for a third preset time, if the temperature of the compressor exceeds the protection release temperature, then the compressor is controlled to stop working; if the temperature of the compressor does not exceed the protection release temperature, then the overheat protection is released and the alarm reminder is stopped.

[0013] In some embodiments of the present invention, the method further includes: during the process of the compressor inflating the air spring, if the temperature of the compressor does not exceed the overheat protection temperature and the height of the air suspension reaches the target height, then the inflation process is terminated.

[0014] To achieve the above objectives, a second aspect of the present invention provides a vehicle comprising: a memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the overheat protection control method for the air suspension compressor of any of the above embodiments.

[0015] To achieve the above objectives, a third aspect of the present invention provides an overheat protection control device for an air suspension compressor. The compressor is used to inflate an air tank and air springs in a vehicle. The device includes: an acquisition module for acquiring the temperature of the compressor; and a control module for controlling the compressor to stop working to provide overheat protection and disable alarms if the compressor temperature exceeds the overheat protection temperature during the process of the compressor inflating the air tank, and after determining that the overheat protection has been released, controlling the compressor to continue inflating the air tank if the pressure of the air tank has not reached a first preset pressure, until the pressure of the air tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than the target pressure of the air tank.

[0016] According to the overheat protection control method, device, and vehicle of the air suspension compressor of the present invention, if the temperature of the compressor exceeds the overheat protection temperature during the process of the compressor charging the air tank, the compressor is controlled to stop working to protect the compressor from overheating and alarm reminders are prohibited, thereby reducing the number of alarms and avoiding frequent alarms from affecting the user; and after the overheat protection is determined to be released, if the pressure of the air tank does not reach the first preset pressure, and the pressure is less than the target pressure of the air tank, the compressor is controlled to continue charging the air tank until the pressure of the air tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature. In this way, by setting an intermediate pressure to control the compressor to charge the air tank, the compressor is prevented from frequently overheating and the service life of the compressor is extended.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a flowchart illustrating an overheat protection control method for an air suspension compressor according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the process of an air suspension compressor filling an air tank according to an embodiment of the present invention.

[0021] Figure 3This is a flowchart illustrating an overheat protection control method for an air suspension compressor according to another embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the process of an air suspension compressor inflating an air spring according to an embodiment of the present invention.

[0023] Figure 5 This is a structural block diagram of a vehicle with an overheat protection control method for an air suspension compressor, according to an embodiment of the present invention.

[0024] Figure 6 This is a structural block diagram of an overheat protection control device for an air suspension compressor according to an embodiment of the present invention. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] Specifically, the air suspension mainly consists of components such as the front air spring damper strut, rear air spring, rear CDC (Continuous Damping Control) damper, air supply system, controller, displacement sensor, and acceleration sensor. The air supply system comprises components such as a compressor, distribution valve, air tank, and piping. The compressor, as the main air source, operates in two states: one is that during vehicle operation, when the air tank pressure is lower than the set pressure, it inflates the tank to the set pressure; the other is that during vehicle operation, when the air tank pressure is lower than the set pressure and the system requires raising the vehicle body, it inflates the air springs to the target height.

[0027] Because the compressor generates heat when it is working, the compressor temperature rises. When the compressor temperature reaches its limit operating temperature, it needs to be protected to prevent overheating and to alert the user.

[0028] The conventional compressor control strategy is as follows: when the compressor temperature exceeds the overheat protection temperature, overheat protection is activated and the user is alerted; when the compressor temperature falls below the overheat protection temperature, the overheat protection is deactivated. However, in situations where the air tank is extremely low on air, or the vehicle is at high altitude or in hot weather, the compressor may reach the overheat protection temperature before it can fill the air tank to the set pressure in one operation, requiring overheat protection to be activated. After a period of time, when the compressor cools down to below the protection deactivation temperature, the overheat protection is deactivated, and the compressor begins to fill the air tank again. If the compressor rises from the protection deactivation temperature to the overheat protection temperature but still cannot fill the air tank to the set pressure, overheat protection will be activated again. This process repeats until the air tank pressure reaches the set pressure, causing repeated compressor overheating, affecting the compressor's lifespan, and repeatedly alerting the user to overheat protection, causing unnecessary inconvenience. Therefore, this invention provides an overheat protection control method for an air suspension compressor, which can extend the compressor's lifespan and avoid the impact of frequent alarms on the user.

[0029] The overheat protection control method for an air suspension compressor according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Figure 1 This is a flowchart illustrating an overheat protection control method for an air suspension compressor according to an embodiment of the present invention.

[0031] like Figure 1 As shown, the overheat protection control method for the air suspension compressor includes:

[0032] S11: If the compressor temperature exceeds the overheat protection temperature during the process of the compressor filling the air tank, the compressor will be stopped to protect it from overheating, and the alarm will be disabled.

[0033] During vehicle operation, the pressure of the air tank is acquired and assessed. If the pressure of the air tank is lower than the preset minimum pressure and meets the operating conditions of other compressors, the compressor is started to fill the air tank.

[0034] During the process of the compressor filling the air tank, the temperature of the compressor is acquired and judged. If the temperature of the compressor exceeds the overheat protection temperature, the compressor needs to be protected against overheating to prevent damage to the compressor. At this time, the compressor is controlled to stop working. However, this will not affect the normal driving of the vehicle or the function of the air suspension. Therefore, no alarm is triggered, which can reduce the number of alarms and avoid frequent alarms affecting the user.

[0035] S13: After confirming that the overheat protection is released, if the pressure of the gas tank has not reached the first preset pressure, control the compressor to continue to charge the gas tank until the pressure of the gas tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than the target pressure of the gas tank.

[0036] After the compressor stops working, its temperature will gradually decrease. After a period of time, the compressor temperature will drop below the protection release temperature, at which point the compressor's overheat protection will be released.

[0037] After the compressor's overheat protection is released, a first preset pressure is set, which is lower than the target pressure of the air tank. It is then determined whether the air tank pressure has reached the first preset pressure. If the air tank pressure has not reached the first preset pressure, the compressor is controlled to continue charging the air tank until the air tank pressure reaches the first preset pressure, or the compressor temperature exceeds the overheat protection temperature again, triggering overheat protection again and disabling the alarm.

[0038] In the above embodiments, when the vehicle is in normal driving condition and the user or system does not require raising or lowering the vehicle's height, even if the compressor overheats, it does not affect the vehicle's normal operation or the air suspension function. Therefore, no reminder is needed to the user to avoid frequent alarms affecting the user. For example, frequent reminders to the user when the vehicle is in normal driving condition and the air suspension function is not affected could have a psychological impact on the user and be detrimental to driving safety. Therefore, reducing alarm reminders in this case can reduce the impact on the user and improve driving safety. At the same time, after the overheat protection is released, setting an intermediate pressure to control the compressor to charge the air tank can reduce the compressor's working time and extend the compressor's heat dissipation time, thereby avoiding frequent overheating of the compressor and extending its service life.

[0039] In some embodiments, after controlling the compressor to continue filling the gas tank, the method further includes: if the pressure of the gas tank reaches a first preset pressure, then ending the current filling process; if the temperature of the compressor exceeds the overheat protection temperature, then returning to the step of controlling the compressor to stop working to protect the compressor from overheating and disabling alarm reminders.

[0040] Specifically, after the compressor's overheat protection is released, a first preset pressure is set, which is lower than the target pressure of the air tank. The system then checks whether the air tank pressure has reached the first preset pressure. If the air tank pressure has not reached the first preset pressure, the compressor continues to charge the air tank, and the system continuously checks whether the air tank pressure has reached the first preset pressure. If the air tank pressure reaches the first preset pressure, the charging process ends. If the air tank pressure still has not reached the first preset pressure, but the compressor temperature has reached the overheat protection temperature, the compressor is activated for overheat protection again. In this case, the compressor stops working without issuing an alarm.

[0041] Therefore, while ensuring the air pressure in the air tank maintains the normal operation of the vehicle, it reduces the working time of the compressor, extends the heat dissipation time of the compressor, avoids frequent overheating of the compressor, and extends the service life of the compressor.

[0042] In some embodiments, after controlling the compressor to stop working to provide overheat protection for the compressor, the method further includes: after the compressor has cooled for a first preset time, if the temperature of the compressor exceeds the protection release temperature, then continuing to control the compressor to stop working, wherein the protection release temperature is lower than the overheat protection temperature; if the temperature of the compressor does not exceed the protection release temperature, then determining that the overheat protection has been released.

[0043] Specifically, during the process of the compressor filling the gas tank, the compressor temperature is acquired and assessed. If the compressor temperature exceeds the overheat protection temperature, overheat protection is activated, and the compressor stops operating without triggering an alarm. After the compressor stops, its temperature gradually decreases. After a first preset time (e.g., 3 minutes), if the compressor temperature still exceeds the protection release temperature, the compressor continues to stop operating. If the compressor temperature falls below the protection release temperature, the overheat protection is deactivated.

[0044] In this embodiment, by setting a reasonable protection release temperature, the gas tank can continue to be filled with gas without the compressor frequently entering the overheat protection state.

[0045] In some embodiments, the method further includes: during the process of the compressor filling the gas tank, if the temperature of the compressor does not exceed the overheat protection temperature and the pressure of the gas tank reaches the target pressure, then the filling process is terminated.

[0046] In one example, such as Figure 2 As shown, the overheat protection control method for the air suspension compressor includes:

[0047] S21: Determine that the pressure of the gas storage tank is lower than the preset minimum pressure Pmin, and that other compressor operating conditions are met.

[0048] S22: The compressor enters the working state and charges the air tank.

[0049] S23: Determine whether the pressure of the gas storage tank has reached the target pressure Pmax. If yes, proceed to S30; otherwise, proceed to S24.

[0050] S24: Determine whether the compressor temperature exceeds the overheat protection temperature Tmax. If yes, proceed to S25; otherwise, return to S22.

[0051] S25: Control the compressor to stop working to protect it from overheating and disable alarm notifications.

[0052] S26: After the compressor has cooled for the first preset time of 3 minutes, determine whether the compressor temperature is lower than the protection release temperature Tmin. If yes, proceed to S27; otherwise, return to S25.

[0053] S27: Determine that the overheat protection has been released.

[0054] S28: Determine whether the pressure of the gas storage tank has reached the first preset pressure Pmid. If yes, proceed to S30; otherwise, proceed to S29.

[0055] S29: The compressor continues to charge the gas tank and determines whether the compressor temperature exceeds the overheat protection temperature Tmax. If yes, return to S25; otherwise, return to S28.

[0056] S30: End of inflation process.

[0057] In this embodiment, during the process of the compressor filling the air tank, when the compressor overheats, the alarm is prohibited to reduce the number of alarms and avoid frequent alarms affecting the user. After the overheat protection is released, the compressor is controlled to fill the air tank by setting an intermediate pressure to avoid frequent overheating of the compressor and extend the service life of the compressor.

[0058] Please combine Figure 3 In some embodiments, the overheat protection control method for the air suspension compressor further includes:

[0059] S31: If the compressor temperature exceeds the overheat protection temperature during the process of the compressor charging the air spring, the compressor will be stopped to protect it from overheating and an alarm will be triggered.

[0060] If a user or the system requests to raise or lower the vehicle's height while the vehicle is in motion, the system obtains and assesses the pressure of the air tank. If the pressure of the air tank is lower than the preset minimum pressure, the system starts the compressor to inflate the air springs.

[0061] During the process of the compressor inflating the air spring, the compressor temperature is acquired and assessed. If the compressor temperature exceeds the overheat protection temperature, the compressor needs to be protected against overheating to prevent damage. In this case, the compressor is controlled to stop working. Since the user or system needs to raise or lower the vehicle body height, but the compressor stops working at this time, an alarm needs to be triggered to remind the user so that they are aware of the situation in a timely manner.

[0062] S33: After the compressor has cooled for the second preset time, if the compressor temperature does not exceed the temporary protection release temperature, the overheat protection is temporarily released, and the compressor is controlled to continue to charge the air spring until the air suspension height reaches the target height or the compressor temperature exceeds the overheat protection temperature. The temporary protection release temperature is lower than the overheat protection temperature but higher than the protection release temperature.

[0063] After the compressor stops working, the compressor temperature will gradually decrease. After a second preset time (e.g., 20 seconds), the compressor temperature will be lower than the temporary protection release temperature, which is the temperature between the overheat protection temperature and the protection release temperature. At this time, the compressor's overheat protection will be temporarily released.

[0064] After the compressor's overheat protection is temporarily released, the compressor continues to inflate the air spring until the air suspension reaches the target height, or the compressor temperature exceeds the overheat protection temperature again, triggering the compressor's overheat protection again and issuing an alarm.

[0065] In the above embodiments, when the vehicle is in normal driving condition and the user or system has a need to raise or lower the vehicle body height, if the compressor overheats, the air suspension function will be affected and the user or system will not be able to meet the user's or system's expectations. Therefore, the user needs to be reminded. At the same time, after the overheat protection is temporarily released, the compressor can be controlled to inflate the air spring by setting the temporary protection release temperature, so that the air suspension can meet the user's or system's expectations more quickly.

[0066] In some embodiments, after the compressor has cooled for a second preset time, the method further includes: if the temperature of the compressor exceeds the temporary protection release temperature, then continue to control the compressor to stop working.

[0067] Specifically, during the process of the compressor charging the air spring, the compressor temperature is acquired and assessed. If the compressor temperature exceeds the overheat protection temperature, overheat protection is activated, the compressor stops working, and an alarm is triggered. After a second preset delay, the compressor temperature will fall below the overheat protection temperature, but may still be above the temporary protection release temperature; in this case, the compressor will continue to stop working.

[0068] In this embodiment, by setting a reasonable temporary protection release temperature, the compressor can be prevented from frequently entering overheat protection and the air suspension can be made to meet the expectations of the user or system more quickly.

[0069] In some embodiments, after controlling the compressor to continue charging the air spring, the method further includes: if the height of the air suspension reaches the target height, then after the compressor has cooled for a third preset time, if the temperature of the compressor exceeds the protection release temperature, then controlling the compressor to stop working; if the temperature of the compressor does not exceed the protection release temperature, then releasing the overheat protection and stopping the alarm reminder.

[0070] Specifically, during the process of the compressor charging the air springs, the compressor temperature is acquired and assessed. If the compressor temperature exceeds the overheat protection temperature, overheat protection is activated, the compressor stops operating, and an alarm is triggered. After the compressor stops operating, its temperature gradually decreases. After a second preset time delay, the compressor temperature will fall below the temporary protection release temperature, at which point the overheat protection is temporarily released. After the overheat protection is temporarily released, the compressor continues to charge the air springs. If the air suspension height reaches the target height, the compressor temperature is assessed again after a third preset cooling time (e.g., 3 minutes). If the compressor temperature exceeds the protection release temperature, the compressor continues to stop operating; if the compressor temperature does not exceed the protection release temperature, the overheat protection is released, and the alarm stops.

[0071] In this embodiment, after the air suspension reaches the target height, compressor overheat protection is still implemented to prevent the compressor from being damaged due to excessive temperature.

[0072] In some embodiments, the method further includes: during the process of the compressor inflating the air spring, if the temperature of the compressor does not exceed the overheat protection temperature and the height of the air suspension reaches the target height, then the inflation process is terminated.

[0073] In one example, such as Figure 4 As shown, the overheat protection control method for the air suspension compressor includes:

[0074] S41: Determine that the pressure in the air tank is lower than the preset minimum pressure Pmin, and that the user or the air suspension control system has a need to raise or lower the vehicle body.

[0075] S42: The compressor enters the working state and charges the air spring.

[0076] S43: Determine if the air suspension height has reached the target height Hmax. If yes, proceed to S44; otherwise, proceed to S45.

[0077] S44: Is there an overheat protection warning during this inflation process? If yes, proceed to S49; otherwise, proceed to S52.

[0078] S45: Determine if the compressor temperature exceeds the overheat protection temperature Tmax. If yes, proceed to S46; otherwise, return to S42.

[0079] S46: Controls the compressor to stop working to protect it from overheating and issues an alarm.

[0080] S47: After the compressor has cooled for the second preset time of 20 seconds, determine whether the compressor temperature is lower than the temporary release protection temperature Tmid. If yes, proceed to S48; otherwise, return to S46.

[0081] S48: Temporarily release overheat protection and return to S42.

[0082] S49: Continue to provide overheat protection reminders, and allow the compressor to cool for the third preset time of 3 minutes.

[0083] S50: Determine if the compressor temperature is lower than the protection release temperature Tmin. If yes, proceed to S51; otherwise, return to S49.

[0084] S51: Disarm the overheat protection and stop the alarm notification.

[0085] S52: End the inflation process.

[0086] In this embodiment, when the vehicle is in normal driving condition and the user or system has a need to raise or lower the vehicle body height, if the compressor overheats, the air suspension function will be affected and the user or system will not be able to meet the user's or system's expectations. Therefore, the user needs to be reminded. At the same time, after the overheat protection is temporarily released, the compressor can be controlled to inflate the air spring by setting the temporary protection release temperature, so that the air suspension can meet the user's or system's expectations more quickly.

[0087] Corresponding to the above embodiments, the present invention also proposes a vehicle. Figure 5 This is a structural block diagram of a vehicle according to an embodiment of the present invention. Figure 5 As shown, the vehicle 100 includes a memory 102, a processor 104, and a program 106 stored in the memory 102 and executable on the processor 104. When the processor 104 executes the program 106, it implements the overheat protection control method for the air suspension compressor of any of the above embodiments.

[0088] According to an embodiment of the present invention, in the process of the compressor filling the air tank, if the temperature of the compressor exceeds the overheat protection temperature, the compressor is controlled to stop working to protect it from overheating and alarm reminders are disabled, thereby reducing the number of alarms and avoiding frequent alarms from affecting the user; and after the overheat protection is determined to be released, if the pressure of the air tank does not reach the first preset pressure, and the pressure is less than the target pressure of the air tank, the compressor is controlled to continue filling the air tank until the pressure of the air tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature. In this way, by setting an intermediate pressure to control the compressor to fill the air tank, the compressor is prevented from frequently overheating and the service life of the compressor is extended.

[0089] For example, when computer program 106 is executed by processor 104, the following overheat protection control method for air suspension compressor is implemented:

[0090] S11: If the compressor temperature exceeds the overheat protection temperature during the process of the compressor filling the air tank, the compressor will be stopped to protect it from overheating, and the alarm will be disabled.

[0091] S13: After confirming that the overheat protection is released, if the pressure of the gas tank has not reached the first preset pressure, control the compressor to continue to charge the gas tank until the pressure of the gas tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than the target pressure of the gas tank.

[0092] It should be noted that the above-described embodiments and explanations of the beneficial effects of the overheat protection control method for the air suspension compressor are also applicable to the vehicle 100 of this invention. To avoid redundancy, they will not be elaborated in detail here.

[0093] Corresponding to the above embodiments, embodiments of the present invention also propose an overheat protection control device for an air suspension compressor. Figure 6 This is a structural block diagram of an overheat protection control device for an air suspension compressor according to an embodiment of the present invention. Figure 6 As shown, the overheat protection control device 300 for the air suspension compressor includes an acquisition module 302 and a control module 304. The acquisition module 302 is used to acquire the temperature of the compressor; the control module 304 is used to control the compressor to stop working to protect it from overheating and disable alarm reminders if the compressor temperature exceeds the overheat protection temperature during the process of the compressor charging the air tank, and after determining that the overheat protection is released, if the pressure of the air tank has not reached the first preset pressure, control the compressor to continue charging the air tank until the pressure of the air tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than the target pressure of the air tank.

[0094] According to an embodiment of the present invention, the overheat protection control device for an air suspension compressor, during the process of the compressor charging the air tank, if the temperature of the compressor exceeds the overheat protection temperature, controls the compressor to stop working to protect the compressor from overheating and disables alarm reminders, thereby reducing the number of alarms and avoiding frequent alarms from affecting the user; and after determining that the overheat protection is released, if the pressure of the air tank has not reached the first preset pressure, and the pressure is less than the target pressure of the air tank, controls the compressor to continue charging the air tank until the pressure of the air tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature. In this way, by setting an intermediate pressure to control the compressor to charge the air tank, the compressor is prevented from frequently overheating and the service life of the compressor is extended.

[0095] In some embodiments of the present invention, the control module 304 is further configured to: end the current inflation process if the pressure of the gas tank reaches the first preset pressure; and return to the step of controlling the compressor to stop working to protect the compressor from overheating and disabling alarm reminders if the temperature of the compressor exceeds the overheat protection temperature.

[0096] In some embodiments of the present invention, the control module 304 is further configured to: after the compressor has cooled for a first preset time, if the temperature of the compressor exceeds the protection release temperature, continue to control the compressor to stop working, wherein the protection release temperature is less than the overheat protection temperature; if the temperature of the compressor does not exceed the protection release temperature, determine that the overheat protection is released.

[0097] In some embodiments of the present invention, the control module 304 is further configured to: during the process of the compressor filling the gas tank, if the temperature of the compressor does not exceed the overheat protection temperature and the pressure of the gas tank reaches the target pressure, then end the current filling process.

[0098] In some embodiments of the present invention, the control module 304 is further configured to: during the process of the compressor charging the air spring, if the temperature of the compressor exceeds the overheat protection temperature, control the compressor to stop working to protect the compressor from overheating and issue an alarm; after the compressor has cooled for a second preset time, if the temperature of the compressor does not exceed the temporary protection release temperature, temporarily release the overheat protection and control the compressor to continue charging the air spring until the height of the air suspension reaches the target height or the temperature of the compressor exceeds the overheat protection temperature, wherein the temporary protection release temperature is lower than the overheat protection temperature but higher than the protection release temperature.

[0099] In some embodiments of the present invention, the control module 304 is further configured to: if the temperature of the compressor exceeds the temporary protection release temperature, continue to control the compressor to stop working.

[0100] In some embodiments of the present invention, the control module 304 is further configured to: if the height of the air suspension reaches the target height, and if the temperature of the compressor exceeds the protection release temperature after the compressor has cooled for a third preset time, then continue to control the compressor to stop working; if the temperature of the compressor does not exceed the protection release temperature, then release the overheat protection and stop the alarm reminder.

[0101] In some embodiments of the present invention, the control module 304 is further configured to: during the process of the compressor inflating the air spring, if the temperature of the compressor does not exceed the overheat protection temperature and the height of the air suspension reaches the target height, then end the inflation process.

[0102] It should be noted that the above explanation of the embodiments and beneficial effects of the overheat protection control method for the air suspension compressor also applies to the overheat protection control device 300 of the air suspension compressor in the embodiments of the present invention. To avoid redundancy, it will not be elaborated in detail here.

[0103] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0104] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0105] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0106] Furthermore, the terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this invention can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this invention, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments. Relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0107] The various embodiments in this specification are described in a related manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the embodiments of apparatus, electronic devices, and computer-readable storage media are basically similar to the method embodiments, and therefore the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0108] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for overheat protection control of an air suspension compressor, characterized in that, The compressor is used to inflate the air tank and air springs in the vehicle, and the method includes: If the temperature of the compressor exceeds the overheat protection temperature during the process of the compressor filling the gas tank, the compressor will be controlled to stop working to protect it from overheating, and the alarm will be disabled. After the overheat protection is released, if the pressure of the gas storage tank does not reach the first preset pressure, the compressor is controlled to continue to fill the gas storage tank until the pressure of the gas storage tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than the target pressure of the gas storage tank. If the temperature of the compressor exceeds the overheat protection temperature during the process of the compressor inflating the air spring, the compressor will be controlled to stop working to protect it from overheating, and an alarm will be triggered. After the compressor has cooled for a second preset time, if the temperature of the compressor does not exceed the temporary protection release temperature, the overheat protection is temporarily released, and the compressor is controlled to continue to inflate the air spring until the height of the air suspension reaches the target height or the temperature of the compressor exceeds the overheat protection temperature, wherein the temporary protection release temperature is less than the overheat protection temperature but greater than the protection release temperature.

2. The method according to claim 1, characterized in that, After controlling the compressor to continue filling the gas tank, the method further includes: If the pressure in the gas storage tank reaches the first preset pressure, the inflation process ends. If the temperature of the compressor exceeds the overheat protection temperature, the process returns to the step of controlling the compressor to stop working to protect it from overheating and disabling alarm notifications.

3. The method according to claim 1, characterized in that, After controlling the compressor to stop operating to provide overheat protection for the compressor, the method further includes: If the temperature of the compressor exceeds the protection release temperature after the compressor has cooled for a first preset time, the compressor will continue to be controlled to stop working, wherein the protection release temperature is lower than the overheat protection temperature. If the temperature of the compressor does not exceed the protection release temperature, then the overheat protection is determined to be released.

4. The method according to any one of claims 1-3, characterized in that, The method further includes: If the temperature of the compressor does not exceed the overheat protection temperature and the pressure of the gas tank reaches the target pressure during the process of the compressor filling the gas tank, the filling process ends.

5. The method according to claim 1, characterized in that, After the compressor has cooled for a second preset time, the method further includes: If the temperature of the compressor exceeds the temporary protection release temperature, the compressor will continue to be controlled to stop working.

6. The method according to claim 1, characterized in that, After controlling the compressor to continue inflating the air spring, the method further includes: If the height of the air suspension reaches the target height, and if the temperature of the compressor exceeds the protection release temperature after the compressor has cooled for a third preset time, then the compressor will continue to be controlled to stop working. If the temperature of the compressor does not exceed the protection release temperature, the overheat protection is released and the alarm is stopped.

7. The method according to any one of claims 5-6, characterized in that, The method further includes: If the temperature of the compressor does not exceed the overheat protection temperature and the height of the air suspension reaches the target height during the process of the compressor inflating the air spring, the inflation process ends.

8. A vehicle, characterized in that, include: The memory, the processor, and the program stored in the memory and executable on the processor, wherein when the processor executes the program, it implements the overheat protection control method for the air suspension compressor according to any one of claims 1-7.

9. An overheat protection control device for an air suspension compressor, used to implement the method as described in any one of claims 1-7, characterized in that, The compressor is used to inflate the air tank and air springs in the vehicle, and the device includes: The acquisition module is used to acquire the temperature of the compressor; The control module is configured to, during the process of the compressor filling the gas tank, if the temperature of the compressor exceeds the overheat protection temperature, control the compressor to stop working to protect the compressor from overheating and disable alarm reminders; and after determining that the overheat protection is released, if the pressure of the gas tank has not reached the first preset pressure, control the compressor to continue filling the gas tank until the pressure of the gas tank reaches the first preset pressure or the temperature of the compressor exceeds the overheat protection temperature, wherein the first preset pressure is less than the target pressure of the gas tank.

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