Method, device, vehicle and storage medium for regenerating a desiccant

Abstract

The application relates to the technical field of vehicles, in particular to a regeneration method and device of a desiccant, a vehicle and a storage medium, wherein the method adopts a regeneration system, the regeneration system comprises an air pump, a drying tank integrated with an outlet of the air pump and a heating module integrated in the drying tank, and the drying tank is internally provided with a desiccant, and the method comprises the following steps: judging whether the regeneration system satisfies preset regeneration conditions; if the regeneration system satisfies the preset regeneration conditions, the air pump is turned off, the heating module is started to heat the regenerated desiccant, and an exhaust valve is opened to use high-pressure gas to backflush the desiccant; and in the case that the exhaust duration reaches a target duration, the heating module is stopped, and the exhaust valve is closed. Therefore, the problem that the air pump assembly has a short service life and high maintenance cost due to low regeneration efficiency of the desiccant in a low-temperature and humid environment is solved, deep regeneration of the desiccant can be realized, and the service life of the air pump assembly is prolonged.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a method, apparatus, vehicle, and storage medium for regenerating a desiccant. Background Technology

[0002] In a vehicle's air suspension system, the air compressor is the core component that generates and provides dry, clean compressed air. If moisture in the compressed air is not effectively removed, it can freeze in the system or cause component corrosion, leading to system malfunctions. Therefore, air compressors typically integrate a dryer, whose internal desiccant is responsible for adsorbing moisture from the air.

[0003] In related technologies, the air pump assembly of an automotive air suspension system is usually installed on the vehicle chassis and directly exposed to harsh environments. Under humid and low-temperature conditions, the moisture adsorbed by the desiccant can easily reach saturation and freeze, causing the regeneration airflow to be unable to pass smoothly or to lose its adsorption capacity. This makes it easy for moisture to penetrate into the air pump and other valve bodies, causing corrosion or blockage due to freezing, thus significantly shortening the service life of the air pump assembly. In addition, premature desiccant failure often requires frequent replacement of the entire air pump-dryer assembly, further increasing maintenance costs. Summary of the Invention

[0004] This application provides a method, apparatus, vehicle, and storage medium for regenerating desiccant to solve the problems of low desiccant regeneration efficiency in low-temperature and humid environments, which leads to short lifespan of air pump assemblies and high maintenance costs. It can achieve deep regeneration of desiccant, thereby extending the lifespan of air pump assemblies.

[0005] A first aspect of this application provides a method for regenerating a desiccant. The method employs a regeneration system comprising: an air pump, a drying tank integrated with the outlet of the air pump, and a heating module integrated inside the drying tank. The drying tank contains a desiccant. The method includes the following steps: Determine whether the regeneration system meets the preset regeneration conditions; If the regeneration system meets the preset regeneration conditions, the air pump is turned off, the heating module is started to heat and regenerate the desiccant, and the exhaust valve is opened to use high-pressure gas to backflush the desiccant. Once the exhaust time reaches the target duration, the heating module is stopped and the exhaust valve is closed.

[0006] Optionally, in some embodiments, the preset regeneration conditions are: the current ambient temperature is lower than a first temperature threshold, and / or a forced regeneration command is received, and / or the air suspension system descends.

[0007] Optionally, in some embodiments, activating the heating module to heat and regenerate the desiccant includes: Obtain the current temperature of the desiccant; The output power of the heating module is adjusted according to the current temperature and the preset target temperature.

[0008] Optionally, in some embodiments, adjusting the output power of the heating module according to the current temperature and the preset target temperature includes: Determine the difference between the preset target temperature and the current temperature; If the difference is greater than a first threshold, the heating module is controlled to heat at a first output power. If the difference is less than or equal to the first threshold and greater than the second threshold, the heating module is controlled to heat at the second output power. If the difference is less than or equal to the second threshold, the heating module is stopped, wherein the first threshold is greater than the second threshold and the first output power is greater than the second output power.

[0009] Optionally, in some embodiments, after obtaining the current temperature of the desiccant, the process includes: Determine whether the current temperature of the desiccant is greater than a second temperature threshold; If the current temperature of the desiccant is greater than the second temperature threshold, an abnormality alert instruction is generated, and an abnormality alert is issued according to the abnormality alert instruction.

[0010] Optionally, in some embodiments, after determining whether the regeneration system meets the preset regeneration conditions, the process includes: Get the current ambient temperature; The target duration is determined based on the current ambient temperature and a preset temperature-duration mapping table.

[0011] A second aspect of this application provides a desiccant regeneration apparatus, comprising: the apparatus employing a regeneration system, the regeneration system comprising: an air pump, a drying tank integrated with the air pump outlet, and a heating module integrated inside the drying tank, wherein the drying tank contains a desiccant, and the apparatus comprising: The judgment module is used to determine whether the regeneration system meets the preset regeneration conditions; The regeneration module is used to shut down the air pump, start the heating module to heat and regenerate the desiccant when the regeneration system meets the preset regeneration conditions, and open the exhaust valve to backflush the desiccant with high-pressure gas. The stop module is used to stop the heating module and close the exhaust valve when the exhaust time reaches the target time.

[0012] Optionally, in some embodiments, the preset regeneration conditions are: the current ambient temperature is lower than a first temperature threshold, and / or a forced regeneration command is received, and / or the air suspension system descends.

[0013] Optionally, in some embodiments, the regeneration module includes: The first acquisition unit is used to acquire the current temperature of the desiccant; The adjustment unit is used to adjust the output power of the heating module according to the current temperature and the preset target temperature.

[0014] Optionally, in some embodiments, the adjustment unit includes: The first determining subunit is used to determine the difference between the preset target temperature and the current temperature; The first heating unit is configured to control the heating module to heat at a first output power when the difference is greater than a first threshold. The second heating unit is used to control the heating module to heat with a second output power when the difference is less than or equal to the first threshold and greater than the second threshold. A third heating unit is used to stop the heating module when the difference is less than or equal to a second threshold, wherein the first threshold is greater than the second threshold and the first output power is greater than the second output power.

[0015] Optionally, in some embodiments, after obtaining the current temperature of the desiccant, the first obtaining unit includes: The determination subunit is used to determine whether the current temperature of the desiccant is greater than the second temperature threshold. The reminder subunit is used to generate an abnormal reminder instruction when the current temperature of the desiccant is greater than the second temperature threshold, and to provide an abnormal reminder according to the abnormal reminder instruction.

[0016] Optionally, in some embodiments, after determining whether the regeneration system meets the preset regeneration conditions, the determining module includes: The second acquisition subunit is used to acquire the current ambient temperature; The second determining subunit is used to determine the target duration based on the current ambient temperature and a preset temperature-duration mapping table.

[0017] A third aspect of this application provides a vehicle comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the desiccant regeneration method as described in the above embodiments.

[0018] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the desiccant regeneration method as described in the above embodiments.

[0019] Therefore, by determining whether the regeneration system meets the preset regeneration conditions, if the regeneration system does, the air pump is shut off, the heating module is started to heat and regenerate the desiccant, and the exhaust valve is opened to use high-pressure gas to backflush the desiccant. Once the exhaust time reaches the target duration, the heating module is stopped, and the exhaust valve is closed. This solves the problem of low desiccant regeneration efficiency in low-temperature and humid environments, which leads to short air pump assembly life and high maintenance costs. It enables deep desiccant regeneration, thereby extending the life of the air pump assembly.

[0020] Additional aspects and advantages of this application 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 this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a flowchart of a desiccant regeneration method provided according to an embodiment of this application; Figure 2 This is a schematic diagram of the structure of a regeneration system provided according to an embodiment of this application; Figure 3 This is a schematic cross-sectional view of a regeneration system provided according to an embodiment of this application; Figure 4 This is a block diagram of a desiccant regeneration apparatus provided according to an embodiment of this application; Figure 5 This is a structural schematic diagram of a vehicle provided according to an embodiment of this application. Detailed Implementation

[0022] The embodiments of this application are described in detail below. Examples of these embodiments are shown 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 this application, and should not be construed as limiting this application.

[0023] Before introducing the desiccant regeneration method of the embodiments of this application, let's first introduce the shortcomings of the desiccant regeneration schemes of related technologies. Related technologies usually regenerate desiccants that have adsorbed moisture by backflushing, that is, by using the residual pressure gas or air spring system in the system after the air pump stops to pass through the drying tank in reverse and carry away the moisture.

[0024] However, the relevant technology has the following drawbacks: (1) Incomplete regeneration: The relevant technology can only remove the free water on the surface of the desiccant and is ineffective against the deep adsorbed water. The adsorption capacity of the desiccant cannot be fully restored. (2) Short lifespan: In humid or cold environments, moisture will freeze in the pores of the desiccant or the desiccant will saturate faster in humid environments. The backflushing airflow cannot remove it or the backflushing capacity is low, which leads to the desiccant saturating and failing quickly. (3) Damaged assembly lifespan: Incomplete regeneration makes it easy for moisture to invade the air pump and other valve bodies, causing corrosion and icing blockage, which shortens the service life of the entire integrated assembly. (4) High maintenance cost: Premature failure of the desiccant requires frequent replacement of the entire air pump-drying tank assembly, which is costly.

[0025] To address the aforementioned problems, this application provides a method for regenerating a desiccant. In this method, by determining whether the regeneration system meets preset regeneration conditions, if the system does, the air pump is shut off, the heating module is activated to heat the regenerated desiccant, and the exhaust valve is opened to use high-pressure gas to backflush the desiccant. Once the exhaust time reaches the target duration, the heating module is stopped, and the exhaust valve is closed. This solves the problem of low desiccant regeneration efficiency in low-temperature and humid environments, which leads to short air pump assembly lifespan and high maintenance costs. It enables deep desiccant regeneration, thereby extending the lifespan of the air pump assembly.

[0026] It should be noted that before introducing the desiccant regeneration method of the embodiments of this application, the structure of the regeneration system involved in the embodiments of this application will be described first. The regeneration system includes an air pump, a drying tank and a heating module.

[0027] The drying tank is fixedly installed at the compressed air outlet of the air pump through structural connectors, forming an integrated assembly with the air pump. For example, the drying tank is rigidly connected to the air pump outlet through mechanical interfaces such as flanges or threads.

[0028] The heating module is integrated into the body of the drying tank. The heating module can be a heating wire embedded in the wall of the drying tank, which is closely attached to the inner surface of the drying tank to achieve efficient and uniform heating.

[0029] In some embodiments, the regeneration system further includes a control unit ( ), wherein the control unit is electrically connected to the air pump and the heating module, and may be an air suspension ECU (Electronic Control Unit). The control unit is configured to: control the air pump to stop and control the heating module to start when a preset regeneration trigger condition is met, so as to heat and regenerate the desiccant in the drying tank.

[0030] The preset regeneration triggering conditions are at least one of the following: ambient temperature is lower than a first preset threshold, a forced regeneration command is received from the vehicle control system, and the air spring system descends to perform backflush.

[0031] In some embodiments, the regeneration system further includes a temperature detection module, wherein the temperature detection module may be a temperature sensor disposed inside the drying tank, for monitoring the temperature of the desiccant and feeding the signal back to the control unit.

[0032] In addition, the control unit is further configured to dynamically adjust the power of the heating module based on the feedback signal from the temperature sensor, so that the temperature of the desiccant is maintained within a preset safe heating range.

[0033] In summary, this application embodiment adds a heating module and temperature sensor integrated into the air pump assembly that integrates the drying tank, and controls them through a control unit. Specifically: (1) Monitoring and triggering: continuously monitor parameters such as air pump working time and ambient temperature, and trigger regeneration when the set threshold is reached; (2) Safe shutdown: first, instruct the air pump to stop working; (3) Heating and backflushing coordination: start the heating module to heat the desiccant, and simultaneously or after a delay, open the exhaust valve for backflushing; (4) Temperature control: dynamically adjust the heating power according to the temperature sensor feedback to keep the desiccant temperature in the optimal regeneration range; (5) Process end: after the set time or regeneration target (such as the humidity of the discharged gas reaching the standard) is reached, stop heating and turn off backflushing.

[0034] The following is combined with Figure 1 This application describes a method for regenerating a desiccant, specifically... Figure 1 This is a schematic flowchart of a desiccant regeneration method provided in an embodiment of this application.

[0035] like Figure 1 As shown, the regeneration method for this desiccant includes the following steps: In step S101, it is determined whether the regeneration system meets the preset regeneration conditions.

[0036] The preset regeneration conditions are: the current ambient temperature is lower than the first temperature threshold, and / or a forced regeneration command is received, and / or the air suspension system descends.

[0037] The first temperature threshold can be obtained through a limited number of experiments or through a limited number of computer simulations; no specific limitation is made here.

[0038] Specifically, this embodiment of the application collects ambient temperature data in real time through sensors and monitors command signals from the control unit and the working status of the air suspension. When the ambient temperature is detected to be lower than a set first temperature threshold, it indicates that the low temperature may cause the moisture adsorbed by the desiccant to freeze, affecting its regeneration ability. If a forced regeneration command is received, the regeneration process can be actively started to deal with abnormal operating conditions. When the air suspension system performs a lowering action, it is usually accompanied by the release of compressed air, which provides airflow conditions for regeneration and is suitable for simultaneous desiccant regeneration. If any of the above conditions are met, the regeneration system is determined to meet the regeneration conditions and enters the subsequent regeneration control process.

[0039] In step S102, if the regeneration system meets the preset regeneration conditions, the air pump is turned off, the heating module is started to heat the regenerated desiccant, and the exhaust valve is opened to use high-pressure gas to backflush the desiccant.

[0040] Specifically, after determining that the regeneration system meets the preset regeneration conditions, the air pump is first stopped to completely avoid the potential risks to the air pump motor caused by electric heating. Then, the heating module integrated in the drying tank is activated to heat the desiccant, raising its temperature to the range required for moisture desorption. Simultaneously, or with a delay, the exhaust valve is opened, using the high-pressure gas from the storage tank or remaining system gas to backflush the desiccant, carrying the desorbed water vapor out of the system. This backflush airflow, combined with heating, significantly improves regeneration efficiency, ensuring the desiccant quickly recovers its adsorption performance. Therefore, in this embodiment, after the regeneration conditions are triggered, the air pump is first instructed to stop, and then the heating module is started to heat the drying tank. At the same time or after a delay, the exhaust valve is opened for backflushing. By utilizing the synergistic effect of the water vapor generated by heating and the backflushing airflow, the desiccant is deeply regenerated, which effectively avoids the problem of the desiccant failing due to moisture saturation or freezing in low temperature and high humidity environments, and prevents moisture from entering the air pump and control valve, thereby reducing the risk of corrosion and blockage.

[0041] Optionally, in some embodiments, activating the heating module to heat the regenerated desiccant includes: acquiring the current temperature of the desiccant; and adjusting the output power of the heating module based on the current temperature and a preset target temperature.

[0042] The preset target temperature can be obtained through a limited number of experiments or through a limited number of computer simulations; no specific limitation is made here.

[0043] Specifically, in this embodiment, the current temperature of the desiccant is first obtained by a temperature sensor arranged inside the drying tank. The control unit compares this temperature with a preset target regeneration temperature and adjusts the output power of the heating module based on the comparison result. For example, a PID (proportional-integral-derivative) control strategy or a control strategy that sets different output power based on the comparison result is used to dynamically adjust the output power of the heating module. When the temperature difference is large, the power is increased to heat up quickly; when the temperature approaches the target temperature, the power is reduced to avoid overheating, ensuring that the desiccant efficiently desorbs moisture within the optimal temperature range, while preventing material aging or failure due to local overheating.

[0044] Therefore, this application introduces a heating power adjustment mechanism based on temperature feedback, which enables refined thermal management of the desiccant regeneration process. On the one hand, it avoids energy waste or temperature overshoot caused by constant power heating, thus improving energy efficiency; on the other hand, it effectively prevents the desiccant from degrading in performance or being damaged in structure due to overheating, extending its service life.

[0045] Optionally, in some embodiments, adjusting the output power of the heating module according to the current temperature and a preset target temperature includes: determining the difference between the preset target temperature and the current temperature; controlling the heating module to heat with a first output power when the difference is greater than a first threshold; controlling the heating module to heat with a second output power when the difference is less than or equal to the first threshold and greater than a second threshold; and stopping the heating module when the difference is less than or equal to the second threshold, wherein the first threshold is greater than the second threshold and the first output power is greater than the second output power.

[0046] The first threshold and the second threshold can be obtained through a finite number of experiments or through a finite number of computer simulations; no specific limitations are imposed here.

[0047] Specifically, when adjusting the output power of the heating module, this embodiment can calculate the difference between the preset target regeneration temperature and the current temperature of the desiccant. If the difference is greater than a first threshold (e.g., ΔT > 20°C), it indicates that the desiccant temperature is far below the level required for regeneration. At this time, the heating module is controlled to operate at a higher first output power to achieve rapid heating. When the difference drops below the first threshold but is still greater than the second threshold (e.g., 5°C < ΔT ≤ 20°C), the second output power is switched to a lower level to slow down the heating rate and avoid temperature overshoot. When the difference is less than or equal to the second threshold (e.g., ΔT ≤ 5°C), it indicates that the desiccant has approached or reached the target temperature. The system stops the heating module and relies on residual heat or airflow to complete the subsequent desorption.

[0048] Therefore, the multi-level power control strategy based on temperature difference threshold in this application embodiment can significantly improve energy utilization efficiency and system safety while ensuring regeneration efficiency. The high-power stage accelerates the heating and shortens the regeneration time, while the low-power stage avoids the desiccant from aging or failing due to local overheating. Timely stopping of heating prevents energy waste and thermal damage.

[0049] Optionally, in some embodiments, after obtaining the current temperature of the desiccant, the method includes: determining whether the current temperature of the desiccant is greater than a second temperature threshold; if the current temperature of the desiccant is greater than the second temperature threshold, generating an abnormality alert instruction and issuing an abnormality alert according to the abnormality alert instruction.

[0050] Specifically, after obtaining the current temperature of the desiccant, the system compares it with a preset second temperature threshold. If the current temperature exceeds the threshold, it indicates that the heating module may cause the desiccant to overheat due to control failure, sensor failure, or poor heat dissipation. At this time, the control unit immediately generates an abnormality reminder command and issues an audible and visual alarm, text prompt, or uploads a fault code through the vehicle's human-machine interface or remote communication module.

[0051] Therefore, this application embodiment provides an overheating anomaly alert when the second temperature threshold is exceeded. The system can effectively identify and respond to the risk of thermal runaway during the desiccant regeneration process, avoiding safety hazards such as desiccant failure, pipeline aging, or even fire caused by continuous high temperature.

[0052] In step S103, when the exhaust time reaches the target time, the heating module is stopped and the exhaust valve is closed.

[0053] Furthermore, in some embodiments, after determining whether the regeneration system meets the preset regeneration conditions, the process includes: obtaining the current ambient temperature; and determining the target duration based on the current ambient temperature and a preset temperature-duration mapping table.

[0054] The target duration is the set exhaust backflushing duration; the temperature-duration mapping table is a data table pre-stored in the control unit, which records the optimal regeneration exhaust duration corresponding to different ambient temperature ranges.

[0055] Specifically, in this embodiment, the current ambient temperature can be obtained and a preset temperature-duration mapping table can be queried to determine the target exhaust duration that matches the ambient temperature. Subsequently, the system opens the exhaust valve and starts the heating module for regeneration. When the actual exhaust duration accumulates to the target duration, the control unit automatically stops the heating module and closes the exhaust valve, ending the regeneration process.

[0056] In summary, the embodiments of this application monitor system parameters in real time through the control unit to determine whether the preset regeneration conditions are met. When the regeneration conditions are met, the control unit first controls the air pump to stop working and starts the heating module to heat the drying tank. Then, the exhaust valve is opened, and the residual pressure of the system is used to form a reverse airflow to backflush the desiccant. At the same time, the heating module continues to work. After the exhaust time reaches the predetermined regeneration time, the control unit controls the heating module and the exhaust valve to be turned off.

[0057] Therefore, by introducing a controllable heating regeneration mechanism, this application embodiment solves the core pain point of regeneration failure of integrated assemblies in low temperature and humid environments, realizes deep regeneration of desiccant, significantly improves desiccant desorption efficiency and assembly service life, and fundamentally ensures the reliability of air suspension system in cold and humid environments.

[0058] To enable those skilled in the art to further understand the desiccant regeneration method of the embodiments of this application, a detailed description is provided below with reference to specific embodiments.

[0059] Such as 2 and Figure 3 As shown, the regeneration system of this application embodiment can be installed on the vehicle chassis. When the air pump is working, the compressed air generated directly enters the drying tank, where the desiccant absorbs moisture, and then it is delivered to the air spring through pipelines. When the control unit detects that the regeneration system meets the preset regeneration conditions, for example, when it detects that the air pump needs to exhaust pressure, the control unit first sends a stop command to the air pump to ensure that it completely stops working. After the air pump stops, the control unit immediately supplies power to the heating wire to start heating the drying tank.

[0060] The temperature sensor feeds back the temperature signal to the control unit in real time. The control unit opens the exhaust valve synchronously or with a delay, so that the residual high-pressure dry gas in the system pipeline is depressurized through the exhaust valve, forming a backflush airflow from the outlet of the drying tank to the inlet. Heating causes the moisture in the desiccant to evaporate rapidly into water vapor. The backflush airflow efficiently blows this water vapor out of the drying tank and into the atmosphere through the exhaust valve.

[0061] The control unit adjusts the heating power according to the signal from the temperature sensor and stabilizes the temperature at around 70°C. After the exhaust time reaches the calibrated time, such as 9 seconds, the control unit stops supplying power to the heating wire and closes the exhaust valve, thus ending the entire heat regeneration process. The system then waits for the next startup.

[0062] Therefore, the embodiments of this application have the following beneficial effects; 1. High regeneration efficiency: Heating turns liquid water into water vapor, which has a strong desorption capacity. Heating also effectively prevents and melts ice, solving the problem of poor regeneration capacity in humid environments. This achieves deep regeneration of the desiccant and ensures the normal operation and reliability of the system in cold environments.

[0063] 2. The system has high safety. The control logic of stopping the machine first and then heating it fundamentally eliminates the safety hazards to the operation of the air pump during the heating process. The closed-loop temperature control avoids the risk of overheating and protects the assembly components.

[0064] 3. Extends assembly lifespan: The efficient regeneration capability keeps the desiccant at a high adsorption capacity, reducing the risk of moisture intrusion damaging the air pump and other valves due to desiccant failure, and significantly extending the replacement cycle of expensive assemblies.

[0065] 4. Strong Adaptability: The system can intelligently trigger regeneration based on parameters such as air pump workload and ambient temperature, and can adaptively adjust the heating strategy to balance efficiency and energy consumption.

[0066] According to the desiccant regeneration method proposed in this application, by determining whether the regeneration system meets preset regeneration conditions, if the regeneration system meets the preset regeneration conditions, the air pump is turned off, the heating module is started to heat the regenerated desiccant, and the exhaust valve is opened to use high-pressure gas to backflush the desiccant. When the exhaust time reaches the target time, the heating module is stopped and the exhaust valve is closed. This solves the problem of low desiccant regeneration efficiency in low-temperature and humid environments, which leads to short air pump assembly life and high maintenance costs. It enables deep desiccant regeneration, thereby extending the life of the air pump assembly.

[0067] Next, the desiccant regeneration apparatus according to the embodiments of this application is described with reference to the accompanying drawings.

[0068] It should be noted that the desiccant regeneration device uses a regeneration system, which includes an air pump, a drying tank integrated with the air pump outlet, and a heating module integrated inside the drying tank, with desiccant inside the drying tank.

[0069] Figure 4 This is a block diagram of a desiccant regeneration device according to an embodiment of this application.

[0070] like Figure 4 As shown, the desiccant regeneration device 10 includes: a judgment module 100, a regeneration module 200, and a stop module 300.

[0071] The judgment module 100 is used to determine whether the regeneration system meets the preset regeneration conditions.

[0072] The regeneration module 200 is used to shut down the air pump, start the heating module to heat the regenerated desiccant, and open the exhaust valve to backflush the desiccant with high-pressure gas when the regeneration system meets the preset regeneration conditions.

[0073] The stop module 300 is used to stop the heating module and close the exhaust valve when the exhaust time reaches the target time.

[0074] Optionally, in some embodiments, the preset regeneration conditions are: the current ambient temperature is lower than a first temperature threshold, and / or a forced regeneration command is received, and / or the air suspension system descends.

[0075] Optionally, in some embodiments, the regeneration module 200 includes: a first acquisition unit and an adjustment unit.

[0076] The first acquisition unit is used to acquire the current temperature of the desiccant.

[0077] The adjustment unit is used to adjust the output power of the heating module according to the current temperature and the preset target temperature.

[0078] Optionally, in some embodiments, the adjustment unit includes: a first determining subunit, a first heating unit, a second heating unit, and a third heating unit.

[0079] The first determining subunit is used to determine the difference between the preset target temperature and the current temperature.

[0080] The first heating unit is used to control the heating module to heat at a first output power when the difference is greater than a first threshold.

[0081] The second heating unit is used to control the heating module to heat with a second output power when the difference is less than or equal to the first threshold and greater than the second threshold.

[0082] The third heating unit is used to stop the heating module when the difference is less than or equal to the second threshold, wherein the first threshold is greater than the second threshold and the first output power is greater than the second output power.

[0083] Optionally, in some embodiments, after obtaining the current temperature of the desiccant, the first obtaining unit includes: a judging subunit and an alerting subunit.

[0084] The judgment subunit is used to determine whether the current temperature of the desiccant is greater than the second temperature threshold.

[0085] The reminder subunit is used to generate an abnormality reminder command when the current temperature of the desiccant is greater than the second temperature threshold, and to issue an abnormality reminder according to the abnormality reminder command.

[0086] Optionally, in some embodiments, after determining whether the regeneration system meets the preset regeneration conditions, the determination module 100 includes: a second acquisition subunit and a second determination subunit.

[0087] The second acquisition subunit is used to acquire the current ambient temperature.

[0088] The second determining subunit is used to determine the target duration based on the current ambient temperature and a preset temperature-duration mapping table.

[0089] It should be noted that the foregoing explanation of the desiccant regeneration method embodiment also applies to the desiccant regeneration device of this embodiment, and will not be repeated here.

[0090] According to the desiccant regeneration device proposed in this application embodiment, by determining whether the regeneration system meets preset regeneration conditions, if the regeneration system meets the preset regeneration conditions, the air pump is turned off, the heating module is started to heat the regenerated desiccant, and the exhaust valve is opened to use high-pressure gas to backflush the desiccant. When the exhaust time reaches the target time, the heating module is stopped and the exhaust valve is closed. This solves the problem of low desiccant regeneration efficiency in low-temperature and humid environments, leading to short air pump assembly life and high maintenance costs. It enables deep regeneration of the desiccant, thereby extending the life of the air pump assembly.

[0091] Figure 5 A schematic diagram of the structure of a vehicle provided in an embodiment of this application. The vehicle may include: The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0092] When processor 502 executes the program, it implements the desiccant regeneration method provided in the above embodiments.

[0093] Furthermore, the vehicle also includes: Communication interface 503 is used for communication between memory 501 and processor 502.

[0094] The memory 501 is used to store computer programs that can run on the processor 502.

[0095] The memory 501 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0096] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0097] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0098] The processor 502 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of this application.

[0099] This application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for regenerating a desiccant.

[0100] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0101] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0102] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0103] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using 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 (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0104] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0105] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for regenerating a desiccant, characterized in that, The method employs a regeneration system, which includes: an air pump, a drying tank integrated with the air pump outlet, and a heating module integrated inside the drying tank. The drying tank contains a desiccant. The method includes the following steps: Determine whether the regeneration system meets the preset regeneration conditions; If the regeneration system meets the preset regeneration conditions, the air pump is turned off, the heating module is started to heat and regenerate the desiccant, and the exhaust valve is opened to use high-pressure gas to backflush the desiccant. Once the exhaust time reaches the target duration, the heating module is stopped and the exhaust valve is closed.

2. The method according to claim 1, characterized in that, The preset regeneration conditions are: the current ambient temperature is lower than the first temperature threshold, and / or a forced regeneration command is received, and / or the air suspension system descends.

3. The method according to claim 1, characterized in that, The step of activating the heating module to heat and regenerate the desiccant includes: Obtain the current temperature of the desiccant; The output power of the heating module is adjusted according to the current temperature and the preset target temperature.

4. The method according to claim 3, characterized in that, The step of adjusting the output power of the heating module according to the current temperature and the preset target temperature includes: Determine the difference between the preset target temperature and the current temperature; If the difference is greater than a first threshold, the heating module is controlled to heat at a first output power. If the difference is less than or equal to the first threshold and greater than the second threshold, the heating module is controlled to heat at the second output power. If the difference is less than or equal to the second threshold, the heating module is stopped, wherein the first threshold is greater than the second threshold and the first output power is greater than the second output power.

5. The method according to claim 3, characterized in that, After obtaining the current temperature of the desiccant, the process includes: Determine whether the current temperature of the desiccant is greater than a second temperature threshold; If the current temperature of the desiccant is greater than the second temperature threshold, an abnormality alert instruction is generated, and an abnormality alert is issued according to the abnormality alert instruction.

6. The method according to claim 1, characterized in that, After determining whether the regeneration system meets the preset regeneration conditions, the process includes: Get the current ambient temperature; The target duration is determined based on the current ambient temperature and a preset temperature-duration mapping table.

7. A desiccant regeneration device, characterized in that, The device employs a regeneration system, which includes: an air pump, a drying tank integrated with the air pump outlet, and a heating module integrated inside the drying tank. The drying tank contains a desiccant. The device further includes: The judgment module is used to determine whether the regeneration system meets the preset regeneration conditions; The regeneration module is used to shut down the air pump, start the heating module to heat and regenerate the desiccant when the regeneration system meets the preset regeneration conditions, and open the exhaust valve to backflush the desiccant with high-pressure gas. The stop module is used to stop the heating module and close the exhaust valve when the exhaust time reaches the target time.

8. The apparatus according to claim 7, characterized in that, The preset regeneration conditions are: the current ambient temperature is lower than the first temperature threshold, and / or a forced regeneration command is received, and / or the air suspension system descends.

9. A vehicle, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the method for regenerating the desiccant as described in any one of claims 1-6.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the desiccant regeneration method as described in any one of claims 1-6.

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