Air supply unit control system and method

Abstract

The invention belongs to the technical field of automobile air suspensions, and discloses an air supply unit control system and method, and the system comprises an electric control module, a valve body air path module, an electric driving module and an air drying module. A winding heating regeneration gas path is arranged in the valve body gas path module, high-pressure gas in a gas storage tank can be guided to flow through a motor winding to be heated, and then the high-pressure gas is guided into a low-pressure cavity to be used for regeneration of a dryer. The electric control module achieves intelligent operation of the system by executing a regeneration control algorithm, a pressure adjusting strategy and a temperature-pressure cooperative control method. The regeneration control algorithm automatically triggers a regeneration process according to the humidity state or the time interval; the pressure adjusting strategy maintains the system pressure stable according to sensor signals; and the temperature-pressure cooperative control dynamically optimizes control parameters according to the winding temperature and the gas path pressure. The system effectively integrates motor waste heat utilization, dryer regeneration and accurate pressure regulation and control, and the overall energy efficiency and reliability are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile air suspension, in particular to an air supply unit control system, and simultaneously relates to a control method of the air supply unit. BACKGROUND

[0002] As an advanced vehicle suspension technology, air suspension system is initially widely used in the field of aviation, and then gradually popularized in the field of commercial vehicles and passenger vehicles. Through core components such as air springs, electric pumps or compressors, it realizes dynamic adjustment of vehicle height and suspension stiffness, thereby significantly improving the ride comfort and driving stability of the vehicle. Especially at high speed, air suspension can reduce the vehicle body to reduce wind resistance and enhance the controllability; in the bumpy section, it can effectively filter vibration by adjusting the suspension hardness, and improve the driving experience.

[0003] With the rapid development of new energy vehicles and the intensification of market competition, air suspension system has gradually penetrated from high-end luxury vehicles to the mid-end market, becoming an important configuration to improve vehicle performance and competitiveness. At the same time, under the background of the continuous maturity of automatic driving technology, the air supply system as a key executive component of air suspension, its reliability, response speed and energy efficiency level are increasingly valued.

[0004] However, the existing air supply unit still has many technical bottlenecks in actual application. The traditional dryer regeneration method depends on external heating devices or direct exhaust regeneration, which has low energy efficiency and frequent regeneration cycle, affecting the service life and stability of the system. In addition, the air path control and thermal management in the conventional system are often independent of each other, lacking a collaborative mechanism, which leads to performance degradation or control lag of the system under high temperature or high pressure working conditions. The heat dissipation and electromagnetic compatibility design of the electric control system are also not perfect, which affects the reliability and environmental adaptability of the system.

[0005] Therefore, there is an urgent need in the art for an air supply unit control system with high integration, rapid response, excellent energy efficiency and intelligent collaborative control capability to overcome the deficiencies of existing technology in dryer regeneration efficiency, system pressure stability and thermal-pressure collaborative management. SUMMARY

[0006] The first purpose of the present application is to provide an air supply unit control system with high integration, rapid response and energy efficiency optimization, which aims to overcome the deficiencies of existing air supply unit in dryer regeneration efficiency, system pressure stability and thermal management and pressure control collaboration.

[0007] To achieve the above purpose, the present application provides the following technical solutions:

[0008] The air supply system of the present application comprises an electric control module, a valve body air path module, an electric drive module and an air drying module.

[0009] The valve body gas path module comprises a winding heating regeneration gas path configured to guide high-pressure gas of a gas storage tank to a low-pressure cavity via motor winding heating;

[0010] The electronic control module is configured to execute a regeneration control algorithm and a pressure regulation strategy, wherein:

[0011] The regeneration control algorithm controls the electromagnetic valve on the winding heating regeneration gas path to realize dryer regeneration;

[0012] The pressure regulation strategy is based on the signal of the pressure sensor to regulate the opening and closing of the electromagnetic valve to maintain system pressure;

[0013] The electronic control module also executes a temperature-pressure coordinated control method to dynamically adjust regeneration and pressure control parameters according to the temperature of the motor winding and the gas path pressure.

[0014] In addition to the above technical features, the present application is also optimized and improved in the following aspects:

[0015] As a preferred technical solution of the present application, the regeneration control algorithm comprises:

[0016] Monitoring the humidity state of the air drying module or judging the regeneration demand based on a preset time interval;

[0017] When the regeneration condition is met, the gas path switching electromagnetic valve is controlled to guide the high-pressure gas of the gas storage tank to the motor Busbar air inlet exhaust hole;

[0018] The motor winding is used to heat the gas;

[0019] The heated gas is guided into the low-pressure cavity through the motor Busbar air outlet hole;

[0020] The heated gas is sent into the dryer through the one-way valve on the compression pump;

[0021] The pressure limiting exhaust electromagnetic valve is controlled to open, and the gas containing water vapor is exhausted to the atmosphere.

[0022] As a preferred technical solution of the present application, the regeneration control algorithm comprises:

[0023] Monitoring the humidity state of the air drying module or judging the regeneration demand based on a preset time interval;

[0024] When the regeneration condition is met, the gas path switching electromagnetic valve is controlled to guide the high-pressure gas of the gas storage tank to the motor Busbar air inlet exhaust hole;

[0025] The motor winding is used to heat the gas;

[0026] The heated gas is introduced into the low-pressure cavity through the motor Busbar gas outlet hole;

[0027] The heated gas is sent into the dryer through the one-way valve on the compression pump;

[0028] The water vapor-containing gas is discharged to the atmosphere by opening the pressure-limiting exhaust solenoid valve.

[0029] As a preferred technical solution of the present application, the pressure regulation strategy comprises:

[0030] The gas path pressure is monitored in real time by a pressure sensor;

[0031] When the pressure exceeds the preset upper threshold, the pressure-limiting exhaust solenoid valve is controlled to open to release pressure;

[0032] When the pressure is lower than the preset lower threshold, the electric drive module is controlled to start the gas charging operation.

[0033] As a preferred technical solution of the present application, the temperature-pressure coordinated control method comprises:

[0034] When the motor winding temperature is higher than the temperature threshold, the winding heating time is reduced or the pressure set point is lowered;

[0035] When the gas path pressure is higher than the pressure threshold, the winding heating regeneration mode is automatically started to reduce humidity;

[0036] According to the real-time temperature and pressure data, the opening and closing timing of the solenoid valve and the operating state of the electric drive module are adjusted.

[0037] As a preferred technical solution of the present application, the electric control module controls the opening and closing sequence of the solenoid valve group to realize multiple gas supply forms, including the gas charging mode, the gas discharging mode and the regeneration mode, wherein:

[0038] In the gas charging mode, the air spring solenoid valve and the gas path switching solenoid valve are controlled to open to supply gas to the air spring;

[0039] In the gas discharging mode, the air spring solenoid valve and the gas path switching solenoid valve are controlled to open to recover the air spring gas to the low-pressure cavity;

[0040] In the regeneration mode, the gas path switching solenoid valve and the pressure-limiting exhaust solenoid valve are controlled to open to perform winding heating regeneration.

[0041] As a preferred technical solution of the present application, the winding heating regeneration gas path comprises a winding inlet pipe and a winding outlet pipe in a metal valve body, and the gas path cooperates with the motor Busbar sealing ring to ensure airtightness and heat conduction efficiency.

[0042] As a preferred technical solution of the present application, the electronic control module further comprises a heat dissipation upper cover and a controller base, wherein the heat dissipation upper cover is provided with a heat dissipation boss and a grounding boss, for optimizing heat management and electromagnetic interference suppression.

[0043] A second object of the present application is to provide a control method of an air supply unit, comprising the following steps:

[0044] A regeneration control algorithm is executed to control the solenoid valve around the winding to heat the high-pressure gas in the gas circuit, so that the high-pressure gas in the gas tank flows through the motor winding and is heated, and then is used for dryer regeneration;

[0045] A pressure regulation strategy is executed to control the opening and closing of the solenoid valve based on the signal of the pressure sensor to regulate the system pressure;

[0046] A temperature-pressure coordinated control is executed to dynamically adjust the regeneration and pressure control parameters according to the motor winding temperature and the gas circuit pressure;

[0047] The regeneration control algorithm, the pressure regulation strategy and the temperature-pressure coordinated control are integrated by the electronic control module.

[0048] As a preferred technical solution of the present application, the regeneration control algorithm specifically comprises:

[0049] The gas circuit switching solenoid valve is controlled to open, so that the high-pressure gas in the gas tank enters the motor Busbar inlet hole; the motor winding is used to heat the gas to generate hot air;

[0050] The hot air is guided into the low-pressure cavity through the motor Busbar outlet hole;

[0051] The hot air is sent into the dryer for regeneration through the one-way valve on the compression pump;

[0052] The pressure limiting exhaust solenoid valve is controlled to open to exhaust the moisture.

[0053] As a preferred technical solution of the present application, the pressure regulation strategy specifically comprises:

[0054] The pressure in the gas circuit is continuously monitored by the pressure sensor;

[0055] When the pressure exceeds the upper threshold, the pressure limiting exhaust solenoid valve is controlled to open to release pressure;

[0056] When the pressure is lower than the lower threshold, the electric drive module is started to compress air and charge into the system;

[0057] In the regeneration mode, the pressure control and the heating regeneration are coordinated to avoid the pressure fluctuation affecting the system stability.

[0058] In combination with the above technical content, the present application achieves multiple beneficial effects through a series of technical improvements, which are embodied in the following aspects:

[0059] 1. Improve the efficiency and energy efficiency of the dryer regeneration

[0060] The present application uses the unique winding heating regeneration gas path to heat the high-pressure gas with the motor winding, and then uses the heated gas for dryer regeneration. The heated gas can more effectively separate water molecules from the drying agent, significantly improving the regeneration efficiency. Compared with the traditional regeneration method, the regeneration frequency is reduced, the energy consumption is reduced, and the service life of the drying agent is prolonged.

[0061] 2. Realize intelligent and adaptive control

[0062] The present application realizes the automation and intelligent management of the system through the regeneration control algorithm, pressure regulation strategy and temperature-pressure collaborative control method executed by the electronic control module.

[0063] The regeneration control algorithm automatically triggers regeneration based on humidity monitoring or preset time intervals, ensuring that the dryer is always in the best state and improving system reliability.

[0064] The pressure regulation strategy can monitor the gas path pressure in real time and control it through the electromagnetic valve to maintain stable pressure, avoid system failure caused by excessive or insufficient pressure, and improve safety and response speed.

[0065] Temperature-pressure collaborative control dynamically adjusts parameters such as heating time and pressure set point according to motor winding temperature and gas path pressure, optimizes system operating state, prevents overheating and pressure fluctuations, and enhances system adaptability and energy efficiency.

[0066] 3. Enhance system integration and structural compactness

[0067] The present application has a compact system structure through highly integrated modular design, saving installation space and facilitating assembly and disassembly. The design of the heat dissipation boss and grounding boss of the heat dissipation upper cover and the integrated terminal of the controller base optimizes heat management and electromagnetic compatibility, improving the stability and life of the controller.

[0068] 4. Improve system response speed and NVH performance

[0069] The system uses an internal circulation design to reduce the influence of the external environment on system operation, and precisely controls the opening and closing sequence of the electromagnetic valve group through the electronic control module to realize fast inflation, deflation and regeneration mode switching. This brings faster system response speed and better noise, vibration and harshness (NVH) performance, improving driving comfort.

[0070] 5. Simplify gas path design and improve reliability

[0071] The application adopts the integrated design of the pressure limiting exhaust electromagnetic valve and the mechanical pressure relief valve, saves the traditional flow limiting valve damping hole and other components, simplifies the gas path structure, and reduces the part cost and failure rate. At the same time, the reasonable arrangement of the pressure sensor ensures the accurate monitoring of the gas path pressure, and further improves the reliability and safety of the system.

[0072] 6. Support multiple air supply modes and multiple scene applications

[0073] The electronic control module of the application can control the electromagnetic valve group to realize multiple air supply forms such as inflation mode, deflation mode and regeneration mode, to meet the needs of air suspension under different driving conditions (such as high-speed stability and low-speed comfort). This enables the vehicle to automatically adjust the body height and suspension hardness, improving the handling, stability and personalized experience.

[0074] In summary, the application improves the efficiency, reliability and adaptability of the air supply unit as a whole through winding heating regeneration air path, intelligent control algorithm and highly integrated structure design. Not only solves the problems of low regeneration efficiency, inaccurate pressure control and complex structure of the existing air suspension system, but also improves the energy efficiency, reduces the noise and improves the response speed of the improved automobile air suspension system. BRIEF DESCRIPTION OF DRAWINGS

[0075] Figure 1 The flow chart of the control method of the air supply unit of the application. DETAILED DESCRIPTION

[0076] The preferred embodiments of the application are described below in conjunction with the accompanying drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the application, and not to limit the scope of the application.

[0077] I. Description of Descriptive Language in the Invention

[0078] The embodiments given in combination with the technical solutions of the application are to make the application more thorough and complete, and fully express the scope of the application to those skilled in the art. It should be noted that: unless otherwise specified in the application, the relative arrangement of the components set forth in these embodiments should be interpreted as merely exemplary, and not as a limitation on the technical solutions of the application.

[0079] If the terms "up", "down", "left", "right", "bottom", "top" and the like are used in the application, they are defined with respect to the directions in the drawings, and are used only to represent the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These or other directional terms should not be understood as limiting terms.

[0080] In the present application, the terms "a", "an", "one", "the", and similar terms do not denote a limitation of quantity, and can mean either the singular or the plural. The terms "comprising", "containing", "having", and any variations thereof, are intended to cover a non-exclusive inclusion; the present application is not limited to the specific order of steps described, unless otherwise specified.

[0081] In the present application, when it is described that a specific device is located between a first device and a second device, there can be an intervening device between the specific device and the first device or the second device, or there can be no intervening device. When it is described that a specific device is connected to another device, the specific device can be directly connected to the other device without an intervening device, or can not be directly connected to the other device with an intervening device.

[0082] In addition, the techniques and devices known to those of ordinary skill in the relevant art are not discussed in detail, but in appropriate cases, the techniques and devices should be considered as part of the specification.

[0083] Second, the core technical problem to be solved by the technical solution of the present application

[0084] The air supply unit in the existing air suspension system has many technical bottlenecks:

[0085] First, the traditional dryer regeneration method relies on external heating or direct exhaust, which has low energy efficiency and frequent regeneration cycle, affecting the service life and stability of the system.

[0086] Second, the air path control and thermal management system are independent of each other, lack of collaborative mechanism, leading to performance degradation and control lag under high temperature and high pressure conditions.

[0087] In addition, the heat dissipation design of the electric control system and the electromagnetic compatibility are insufficient, which reduces the system reliability and environmental adaptability.

[0088] These problems jointly restrict the performance of the air supply unit in response speed, energy efficiency, and pressure stability, making it difficult to meet the demand for efficient and intelligent collaborative control of the suspension system for new energy vehicles and autonomous driving technology.

[0089] Third, based on the above problems, the present application provides a technical solution to solve the above problems, which will be described in detail below in conjunction with specific embodiments, and reference will be made to the accompanying drawings. Figure 1 The technical solution of the present application and the working principle and technical effects are described in detail.

[0090] Embodiment 1

[0091] The air supply unit control system of the present embodiment includes an electric control module, a valve body air path module, an electric drive module, and an air drying module.

[0092] The electric control module includes a heat dissipation upper cover and a controller base. The heat dissipation upper cover is provided with a plurality of heat dissipation bosses and grounding bosses. The heat dissipation bosses are made of aluminum alloy material, and the surface area is increased to optimize heat dissipation. The grounding bosses are connected to the system ground through copper wires to suppress electromagnetic interference. The controller base is made of engineering plastic, and a 32-bit microprocessor and a circuit board are installed inside. The microprocessor is used to execute the regeneration control algorithm, the pressure regulation strategy and the temperature-pressure collaborative control method. The electric control module is connected to the valve body gas path module, the electric drive module and the pressure sensor through cables.

[0093] The valve body gas path module includes a winding heating regeneration gas path, which is composed of a winding inlet gas pipeline and a winding outlet gas pipeline in the metal valve body. The inner diameter of the winding inlet gas pipeline and the winding outlet gas pipeline is 4 mm, and the Busbar sealing ring of the motor is in interference fit to ensure air tightness and efficient heat conduction. The valve body gas path module also includes a plurality of electromagnetic valves: a gas path switching electromagnetic valve, a pressure limiting exhaust electromagnetic valve and an air spring electromagnetic valve, which are fixed on the valve body through threaded connection.

[0094] The electric drive module includes a motor (brushless DC motor, power 500W) and a compression pump (piston compressor). The winding of the motor is wound with copper wire to heat the gas during regeneration. The outlet of the compression pump is provided with a one-way valve to prevent backflow of the gas.

[0095] The air drying module includes a dryer connected to the compression pump outlet and the low-pressure chamber through pipelines to adsorb moisture.

[0096] The connection relationship of each component is as follows: the winding inlet gas pipeline of the valve body gas path module is connected to the gas storage tank through a high-pressure pipeline, and the winding outlet gas pipeline is connected to the low-pressure chamber through a pipeline. The inlet of the compression pump of the electric drive module is connected to the low-pressure chamber, and the outlet is connected to the dryer. The electric control module is connected to the electromagnetic valves, the motor and the pressure sensor through wires. The pressure sensor is installed in the gas path to monitor the pressure.

[0097] The electric control module executes the regeneration control algorithm, the pressure regulation strategy and the temperature-pressure collaborative control method, which are as follows:

[0098] Regeneration control algorithm: The electric control module monitors the humidity state of the air drying module through the humidity sensor, or judges the regeneration demand based on the preset time interval. When the regeneration condition is met, the gas path switching electromagnetic valve is opened to make the high-pressure gas in the gas storage tank, with a pressure range of 0.8-1.2 MPa, flow through the motor Busbar inlet exhaust hole, heat the gas by using the motor winding, and the temperature of the heated gas can reach 60-80°C. The heated gas is introduced into the low-pressure chamber through the motor Busbar outlet hole, and then enters the dryer through the one-way valve on the compression pump to regenerate the dryer. At the same time, the pressure limiting exhaust electromagnetic valve is opened to exhaust the gas containing water vapor to the atmosphere.

[0099] Pressure regulation strategy: The electronic control module monitors the air path pressure in real time through the pressure sensor. When the pressure exceeds the preset upper threshold (e.g., 1.0 MPa), the control pressure relief exhaust solenoid opens to release pressure; when the pressure is lower than the preset lower threshold (e.g., 0.6 MPa), the control electric drive module is started, and the motor drives the compression pump to compress air and charge the system.

[0100] Temperature-pressure cooperative control method: The electronic control module dynamically adjusts the control parameters according to the motor winding temperature (monitored by the temperature sensor) and the air path pressure. When the motor winding temperature is higher than the temperature threshold (e.g., 80°C), reduce the winding heating time (e.g., from 10 minutes to 5 minutes) or lower the pressure set point (e.g., from 1.0 MPa to 0.8 MPa); when the air path pressure is higher than the pressure threshold (e.g., 1.0 MPa), automatically start the winding heating regeneration mode to reduce humidity; adjust the opening and closing timing of the solenoid valve and the running state of the electric drive module according to real-time data, for example, preferentially release pressure at high pressure, and extend the heating time at low temperature.

[0101] In addition, the electronic control module controls the opening and closing sequence of the solenoid valve group to realize multiple air supply forms:

[0102] Charging mode: control the air path switching solenoid valve and the air spring solenoid valve to open, and supply air to the air spring.

[0103] Discharge mode: control the air spring solenoid valve and the air path switching solenoid valve to open, and recycle the air spring gas to the low-pressure cavity.

[0104] Regeneration mode: control the air path switching solenoid valve and the pressure relief exhaust solenoid valve to open, and perform winding heating regeneration.

[0105] Through the above structure and working principle, the embodiment can effectively realize the regeneration of the dryer and the regulation of the system pressure, and optimize the system performance through temperature-pressure cooperative control. Compared with the prior art, the energy utilization efficiency is improved (the regeneration process utilizes waste heat), the energy consumption is reduced, the dryer life is prolonged, and the stable operation of the system is ensured.

[0106] Example 2

[0107] The embodiment provides an air supply unit control method, which is realized by an electronic control module and includes the following steps:

[0108] Step 1: execute the regeneration control algorithm

[0109] Control the air path switching solenoid valve to open, so that the high-pressure gas of the gas tank enters the motor Busbar inlet hole.

[0110] Heating the gas with motor winding to generate hot air (temperature range: 60-80°C).

[0111] Introducing hot air into the low-pressure chamber through the motor Busbar air outlet.

[0112] Sending hot air into the dryer for regeneration through the one-way valve on the compression pump.

[0113] Controlling the pressure-limiting exhaust solenoid valve to open and discharge moisture.

[0114] Step 2: Implement pressure regulation strategy

[0115] Continuously monitoring the gas path pressure through the pressure sensor.

[0116] When the pressure exceeds the upper threshold value (e.g., 1.0 MPa), control the pressure-limiting exhaust solenoid valve to open and release pressure.

[0117] When the pressure is below the lower threshold value (e.g., 0.6 MPa), control the electric drive module to start, compress air, and charge the system.

[0118] In the regeneration mode, coordinate pressure control and heating regeneration, such as pausing pressure release during the regeneration process to avoid pressure fluctuations affecting system stability.

[0119] Step 3: Implement temperature-pressure coordination control

[0120] When the motor winding temperature is higher than the temperature threshold value (e.g., 80°C), reduce the winding heating time or lower the pressure set point.

[0121] When the gas path pressure is higher than the pressure threshold value (e.g., 1.0 MPa), automatically start the winding heating regeneration mode to reduce humidity.

[0122] Adjust the opening and closing timing of the solenoid valve and the operating state of the electric drive module according to real-time temperature and pressure data, such as prioritizing regeneration and pressure release at high temperature and high pressure.

[0123] This method realizes efficient operation of the system by integrating regeneration control, pressure regulation, and temperature-pressure coordination control. Compared with existing methods, it improves the pressure control accuracy (error less than ±0.05 MPa), optimizes the regeneration process (regeneration time shortened by 15%), reduces energy consumption, and enhances the adaptability of the system.

[0124] Example 3

[0125] The difference between this embodiment and embodiment 1 lies in the detailed structure of the valve body gas path module. The metal valve body of the valve body gas path module adopts stainless steel material, the inner diameter of the winding resistance gas inlet pipeline and the winding resistance gas outlet pipeline is 5mm, the wall thickness is 1.5mm, and the double sealing structure is adopted with the motor busbar sealing ring to ensure the air tightness. The air path switching electromagnetic valve, the pressure limiting exhaust electromagnetic valve and the air spring electromagnetic valve adopt high frequency response electromagnetic valve (response time less than 5ms).

[0126] The winding resistance gas inlet pipeline is integrated with a temperature sensor for real-time monitoring of gas temperature and feeding data back to the electronic control module. The winding resistance gas outlet pipeline is provided with a pressure buffer to reduce pressure fluctuation.

[0127] This embodiment has significantly improved heat conduction efficiency and air tightness due to the use of optimized structure and material, and the regeneration efficiency is increased by 15% compared with embodiment 1, and the system pressure fluctuation is reduced by 10%, which is suitable for high frequency operation scene.

[0128] Embodiment 4

[0129] The difference between this embodiment and embodiment 1 lies in the enhanced design of the electronic control module. The microprocessor of the electronic control module is upgraded to ARM Cortex-M7 core, with a main frequency of 200MHz, supporting floating point operation, and being able to quickly process multi-sensor data. The heat dissipation boss of the heat dissipation upper cover adopts copper-based composite material, and the grounding boss is connected through multi-point grounding design.

[0130] The electronic control module also includes a non-volatile memory for storing historical operation data and fault codes. The controller base is provided with a rubber waterproof sealing ring, and the protection level reaches IP67.

[0131] Due to the use of high-performance microprocessor and enhanced heat dissipation design, the control response speed of this embodiment is increased by 25%, the data processing capacity is enhanced, the running stability is improved in harsh environment (such as high temperature and high humidity), and the failure rate is reduced.

[0132] The above only describes the preferred embodiments of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

[0133] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled personnel in the art; when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

Claims

1. An air supply unit control system, comprising an electronic control module, a valve body air circuit module, an electric drive module, and an air drying module, characterized in that: The valve body gas circuit module includes a winding heating and regeneration gas circuit, which is configured to guide the high-pressure gas from the gas storage tank to the low-pressure chamber after heating it via the motor winding. The electronic control module is configured to execute a regeneration control algorithm and a pressure regulation strategy, wherein: The regeneration control algorithm controls the solenoid valve in the winding heating regeneration gas path to achieve dryer regeneration; The pressure regulation strategy is based on the signal from the pressure sensor to regulate the opening and closing of the solenoid valve to maintain the system pressure; The electronic control module also performs a temperature-pressure coordinated control method, dynamically adjusting the regeneration and pressure control parameters based on the temperature of the motor windings and the air pressure.

2. The air supply unit control system according to claim 1, characterized in that, The regeneration control algorithm includes: Monitor the humidity status of the air drying module or determine the regeneration requirement based on a preset time interval; When the regeneration conditions are met, the control gas path switching solenoid valve directs the high-pressure gas from the gas tank to the motor busbar inlet outlet. Gas is heated using motor windings; The heated gas is introduced into the low-pressure chamber through the motor busbar outlet; The heated gas is sent into the dryer through a check valve on the compressor pump; The pressure-limiting exhaust solenoid valve opens, releasing the gas containing water vapor into the atmosphere.

3. The air supply unit control system according to claim 1, characterized in that, The pressure regulation strategy includes: The gas pressure is monitored in real time using a pressure sensor; When the pressure exceeds the preset upper limit threshold, the pressure-limiting and venting solenoid valve is opened to release pressure. When the pressure is lower than the preset lower threshold, the control electric drive module starts the inflation operation.

4. The air supply unit control system according to claim 1, characterized in that, The temperature-pressure coordinated control method includes: When the motor winding temperature is higher than the temperature threshold, reduce the winding heating time or lower the pressure setpoint. When the air pressure is higher than the pressure threshold, the winding heating and regeneration mode is automatically activated to reduce humidity. The opening and closing sequence of the solenoid valve and the operating status of the electric drive module are adjusted based on real-time temperature and pressure data.

5. The air supply unit control system according to claim 1, characterized in that, The electronic control module controls the opening and closing sequence of the solenoid valve assembly to achieve multiple gas supply modes, including inflation mode, deflation mode, and regeneration mode, wherein: In inflation mode, the control air path switching solenoid valve and the air spring solenoid valve open to supply air to the air spring. In the venting mode, the control air spring solenoid valve and the air path switching solenoid valve are opened to recycle the air spring gas to the low-pressure chamber. In regeneration mode, the control air path switching solenoid valve and the pressure limiting exhaust solenoid valve are opened to perform winding heating regeneration.

6. The air supply unit control system according to claim 1, characterized in that, The winding heating regeneration gas path includes a winding inlet pipe and a winding outlet pipe in the metal valve body. The gas path cooperates with the motor Busbar sealing ring to ensure airtightness and heat conduction efficiency.

7. The air supply unit control system according to claim 1, characterized in that, The electronic control module also includes a heat dissipation cover and a controller base. The heat dissipation cover is provided with heat dissipation bosses and grounding bosses for optimizing thermal management and electromagnetic interference suppression.

8. A method for controlling an air supply unit, characterized in that, Includes the following steps: The regeneration control algorithm is executed, which controls the solenoid valve in the winding heating regeneration gas circuit to make the high-pressure gas in the gas tank flow through the motor winding and be heated, and then used for regeneration in the dryer. The system employs a pressure regulation strategy, controlling the opening and closing of solenoid valves based on signals from pressure sensors to regulate system pressure. Perform temperature-pressure coordinated control, and dynamically adjust regeneration and pressure control parameters according to motor winding temperature and air circuit pressure; The regeneration control algorithm, pressure regulation strategy, and temperature-pressure coordinated control are integrated through an electronic control module.

9. The method according to claim 8, characterized in that, The regeneration control algorithm specifically includes: The control air path switching solenoid valve opens, allowing high-pressure gas from the gas tank to enter the motor busbar air inlet; the gas is then heated by the motor windings to generate hot air. Hot air is introduced into the low-pressure chamber through the motor busbar outlet; Hot air is sent into the dryer for regeneration via a check valve on the compressor pump. The pressure-limiting exhaust solenoid valve opens to release moisture.

10. The method according to claim 8, characterized in that, The pressure regulation strategy specifically includes: The gas pressure is continuously monitored using a pressure sensor. When the pressure exceeds the upper limit threshold, the pressure-limiting and venting solenoid valve opens to release pressure. When the pressure is below the lower threshold, the control electric drive module starts, compresses air and fills the system; In regeneration mode, pressure control and heating regeneration are coordinated to avoid pressure fluctuations affecting system stability.

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