Air supply unit control system, method

Abstract

The application belongs to the technical field of automobile air suspension and discloses an air supply unit control system and method, which comprises an electric control module, a valve body air path module, an electric drive module and an air drying module. The valve body air path module is provided with a winding heating regeneration air path, which can guide the high-pressure gas in the gas storage tank to flow through the motor winding for heating and then be introduced into the low-pressure cavity for the dryer regeneration. The electric control module realizes the intelligent operation of the system by executing a regeneration control algorithm, a pressure regulation strategy and a temperature-pressure collaborative control method. The regeneration control algorithm automatically triggers the regeneration process according to the humidity state or the time interval; the pressure regulation strategy maintains the stable system pressure according to the sensor signals; and the temperature-pressure collaborative control dynamically optimizes the control parameters according to the winding temperature and the air path pressure. The system effectively integrates the motor waste heat utilization, the dryer regeneration and the accurate pressure regulation and control, and improves the overall energy efficiency and reliability.

Description

Technical Field

[0001] This invention relates to the field of automotive air suspension technology, specifically to an air supply unit control system and a control method for the air supply unit. Background Technology

[0002] Air suspension systems, as an advanced vehicle suspension technology, were initially widely used in the aviation industry and have since been extended to commercial and passenger vehicles. Through core components such as air springs, electric pumps, or compressors, they dynamically adjust vehicle height and suspension stiffness, significantly improving ride comfort and driving stability. Especially at high speeds, air suspension lowers the vehicle to reduce wind resistance and enhance handling; on bumpy roads, it effectively filters vibrations by adjusting suspension stiffness, improving the driving experience.

[0003] With the rapid development of new energy vehicles and the intensification of market competition, air suspension systems have gradually moved from high-end luxury models to the mid-range market, becoming an important feature for improving vehicle performance and competitiveness. Meanwhile, with the continuous maturation of autonomous driving technology, the air supply system, as a key component of the air suspension, is receiving increasing attention for its reliability, response speed, and energy efficiency.

[0004] However, existing air supply units still face numerous technical bottlenecks in practical applications. Traditional dryer regeneration methods often rely on external heating devices or direct exhaust regeneration, resulting in low energy efficiency and frequent regeneration cycles, impacting system lifespan and stability. Furthermore, in conventional systems, air path control and thermal management are often independent, lacking a coordinated mechanism, leading to performance degradation or control lag under high-temperature or high-pressure conditions. The heat dissipation and electromagnetic compatibility design of the electronic control system are also inadequate, affecting system reliability and environmental adaptability.

[0005] Therefore, there is an urgent need in this field for an air supply unit control system that is highly integrated, responsive, energy efficient, and possesses intelligent collaborative control capabilities, in order to overcome the shortcomings of existing technologies in terms of dryer regeneration efficiency, system pressure stability, and thermo-pressure collaborative management. Summary of the Invention

[0006] The primary objective of this invention is to provide a highly integrated, responsive, and energy-efficient air supply unit control system, which aims to overcome the shortcomings of existing air supply units in terms of dryer regeneration efficiency, system pressure stability, and the synergy between thermal management and pressure control.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] The present invention discloses an air supply system, comprising an electronic control module, a valve body air circuit module, an electric drive module, and an air drying module.

[0009] 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.

[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 solenoid valve in the winding heating regeneration gas path to achieve dryer regeneration;

[0012] 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;

[0013] 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.

[0014] In addition to the above-mentioned technical features, the present invention has also made optimizations and improvements in the following aspects:

[0015] As a preferred embodiment of the present invention, the regeneration control algorithm includes:

[0016] Monitor the humidity status of the air drying module or determine the regeneration requirement based on a preset time interval;

[0017] 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.

[0018] Gas is heated using motor windings;

[0019] The heated gas is introduced into the low-pressure chamber through the motor busbar outlet;

[0020] The heated gas is sent into the dryer through a check valve on the compressor pump;

[0021] The pressure-limiting exhaust solenoid valve opens, releasing the gas containing water vapor into the atmosphere.

[0022] As a preferred embodiment of the present invention, the regeneration control algorithm includes:

[0023] Monitor the humidity status of the air drying module or determine the regeneration requirement based on a preset time interval;

[0024] 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.

[0025] Gas is heated using motor windings;

[0026] The heated gas is introduced into the low-pressure chamber through the motor busbar outlet;

[0027] The heated gas is sent into the dryer through a check valve on the compressor pump;

[0028] The pressure-limiting exhaust solenoid valve opens, releasing the gas containing water vapor into the atmosphere.

[0029] As a preferred embodiment of the present invention, the pressure regulation strategy includes:

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

[0031] When the pressure exceeds the preset upper limit threshold, the pressure-limiting and venting solenoid valve is opened to release pressure.

[0032] When the pressure is lower than the preset lower threshold, the control electric drive module starts the inflation operation.

[0033] As a preferred embodiment of the present invention, the temperature-pressure coordinated control method includes:

[0034] When the motor winding temperature is higher than the temperature threshold, reduce the winding heating time or lower the pressure setpoint.

[0035] When the air pressure is higher than the pressure threshold, the winding heating and regeneration mode is automatically activated to reduce humidity.

[0036] 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.

[0037] As a preferred embodiment of the present invention, the electronic control module controls the opening and closing sequence of the solenoid valve group to achieve multiple gas supply modes, including inflation mode, deflation mode, and regeneration mode, wherein:

[0038] In inflation mode, the control air path switching solenoid valve and the air spring solenoid valve open to supply air to the air spring.

[0039] 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.

[0040] In regeneration mode, the control air path switching solenoid valve and the pressure limiting exhaust solenoid valve are opened to perform winding heating regeneration.

[0041] As a preferred embodiment of the present invention, 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.

[0042] As a preferred embodiment of the present invention, the electronic control module further includes a heat dissipation cover and a controller base, wherein the heat dissipation cover is provided with a heat dissipation boss and a grounding boss for optimizing thermal management and electromagnetic interference suppression.

[0043] A second objective of this invention is to provide a control method for an air supply unit, comprising the following steps:

[0044] 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.

[0045] 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.

[0046] Perform temperature-pressure coordinated control, and dynamically adjust regeneration and pressure control parameters according to motor winding temperature and air circuit pressure;

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

[0048] As a preferred embodiment of the present invention, the regeneration control algorithm specifically includes:

[0049] 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.

[0050] Hot air is introduced into the low-pressure chamber through the motor busbar outlet;

[0051] Hot air is sent into the dryer for regeneration via a check valve on the compressor pump.

[0052] The pressure-limiting exhaust solenoid valve opens to release moisture.

[0053] As a preferred embodiment of the present invention, the pressure regulation strategy specifically includes:

[0054] The gas pressure is continuously monitored using a pressure sensor.

[0055] When the pressure exceeds the upper limit threshold, the pressure-limiting and venting solenoid valve opens to release pressure.

[0056] When the pressure is below the lower threshold, the control electric drive module starts, compresses air and fills the system;

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

[0058] Based on the above description of the technical content, this application has achieved many beneficial effects through a series of technical improvements, specifically reflected in the following aspects:

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

[0060] This application utilizes a unique winding-heated regeneration gas path, employing motor windings to heat high-pressure gas, which is then used for dryer regeneration. The heated gas more effectively removes water molecules from the desiccant, significantly improving regeneration efficiency. Compared to traditional regeneration methods, this reduces the number of regeneration cycles, lowers energy consumption, and extends the desiccant's lifespan.

[0061] 2. Achieve intelligent and adaptive control

[0062] This application achieves automated and intelligent management of the system through the regeneration control algorithm, pressure regulation strategy, and temperature-pressure coordinated 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 optimal condition and improving system reliability.

[0064] The pressure regulation strategy can monitor the gas circuit pressure in real time and control it through a solenoid valve to maintain stable pressure, avoid system failures caused by excessively high or low pressure, and improve safety and response speed.

[0065] Temperature-pressure coordinated control dynamically adjusts parameters (such as heating time and pressure setpoint) based on motor winding temperature and air circuit pressure to optimize system operation, prevent overheating and pressure fluctuations, and enhance system adaptability and energy efficiency.

[0066] 3. Enhance system integration and structural compactness

[0067] This application features a highly integrated modular design, resulting in a compact system structure that saves installation space and facilitates assembly and disassembly. The design of the heat dissipation bosses and grounding bosses on the heat dissipation cover, along with the integrated terminals on the controller base, optimizes thermal management and electromagnetic compatibility, thereby improving the controller's stability and lifespan.

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

[0069] This system employs an internal circulation design to reduce the impact of the external environment on system operation. Simultaneously, the electronic control module precisely controls the opening and closing sequence of the solenoid valve assembly, enabling rapid switching between inflation, deflation, and regeneration modes. This results in faster system response and superior noise, vibration, and harshness (NVH) performance, enhancing ride comfort.

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

[0071] This application adopts an integrated design of a pressure-limiting exhaust solenoid valve and a mechanical pressure relief valve, saving components such as the damping orifice of traditional flow-limiting valves, simplifying the air circuit structure, and reducing component costs and failure rates. Meanwhile, the rational arrangement of pressure sensors ensures accurate monitoring of air circuit pressure, further improving the reliability and safety of the system.

[0072] 6. Supports multiple gas supply modes and applications in various scenarios.

[0073] The electronic control module of this application can control the solenoid valve assembly to achieve multiple air supply modes, such as inflation, deflation, and regeneration, 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 vehicle height and suspension stiffness, improving handling, stability, and personalized driving experience.

[0074] In summary, this invention improves the overall efficiency, reliability, and adaptability of the air supply unit through winding heating regeneration air path, intelligent control algorithm, and highly integrated structural design. It not only solves the problems of low regeneration efficiency, inaccurate pressure control, and complex structure in existing air suspension systems, but also enhances the energy efficiency, reduces noise, and improves response speed of the improved automotive air suspension system. Attached Figure Description

[0075] Figure 1 This is a flowchart of the air supply unit control method of the present invention. Detailed Implementation

[0076] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0077] I. Explanation of descriptive terms used in this invention

[0078] The embodiments provided in conjunction with the technical solutions of this invention are intended to make the invention more thorough and complete, and to fully express the scope of the invention to those skilled in the art. It should be noted that unless otherwise specifically stated in this invention, the relative arrangements of components described in these embodiments should be interpreted as merely exemplary and not as a limitation on the technical solutions of this invention.

[0079] In this invention, when directional terms such as "up," "down," "left," "right," "bottom," and "top" are used, they are defined relative to the directions shown in the accompanying drawings and are used only to indicate relative positional relationships. 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 construed as restrictive terms.

[0080] In this invention, the terms "a," "an," "an," "the," and similar words used do not indicate quantity limitations and can represent singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this invention are intended to cover non-exclusive inclusion; the terms "first," "second," "third," etc., used in this invention are merely to distinguish similar objects and do not represent a specific ordering of objects.

[0081] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0082] Furthermore, this invention does not discuss in detail the technologies and equipment known to those skilled in the art, but where appropriate, such technologies and equipment should be considered part of the specification.

[0083] II. The core technical problem to be solved by the technical solution of this application

[0084] The air supply unit in existing air suspension systems has several technical bottlenecks:

[0085] First, traditional dryer regeneration methods rely on external heating or direct exhaust, which is inefficient and has frequent regeneration cycles, affecting system lifespan and stability.

[0086] Secondly, the gas path control and thermal management system are independent of each other and lack a coordination mechanism, which makes them prone to performance degradation and control lag under high temperature and high pressure conditions.

[0087] In addition, the insufficient heat dissipation design and electromagnetic compatibility of the electronic control system reduce the system's reliability and environmental adaptability.

[0088] These issues collectively limit the performance of the air supply unit in terms of response speed, energy efficiency, and pressure stability, making it difficult to meet the demands of new energy vehicles and autonomous driving technologies for efficient and intelligent coordinated control of the suspension system.

[0089] III. Based on the above problems, the present invention specifically provides a technical solution to solve these problems. The following describes specific embodiments and references the appendix. Figure 1 As shown, the technical solution, working principle, and technical effects of the present invention will be explained in detail.

[0090] Example 1

[0091] The air supply unit control system of this embodiment includes an electronic control module, a valve body air circuit module, an electric drive module, and an air drying module.

[0092] The electronic control module includes a heat dissipation cover and a controller base. The heat dissipation cover has multiple heat dissipation bosses and a grounding boss. The heat dissipation bosses are made of aluminum alloy, and their increased surface area optimizes heat dissipation. The grounding boss is connected to the system grounding terminal via a copper wire to suppress electromagnetic interference. The controller base is made of engineering plastic and houses a 32-bit microprocessor and circuit board. The microprocessor executes regenerative control algorithms, pressure regulation strategies, and temperature-pressure coordinated control methods. The electronic control module is connected to the valve body pneumatic circuit module, the electric drive module, and the pressure sensor via cables.

[0093] The valve body pneumatic circuit module includes a winding heating and regeneration pneumatic circuit, which consists of a winding inlet pipe and a winding outlet pipe within the metal valve body. The inner diameter of both the winding inlet and outlet pipes is 4mm, and they are interference-fitted with the motor busbar seal to ensure airtightness and efficient heat transfer. The valve body pneumatic circuit module also includes multiple solenoid valves: a pneumatic circuit switching solenoid valve, a pressure-limiting exhaust solenoid valve, and an air spring solenoid valve. These solenoid valves are fixed to the valve body via threaded connections.

[0094] The electric drive module includes a motor (brushless DC motor, 500W) and a compressor pump (reciprocating compressor). The motor windings are made of copper wire and are used to heat the gas during the regeneration process. A check valve is provided at the compressor pump outlet to prevent gas backflow.

[0095] Air drying module: includes a dryer, which is connected to the outlet of the compressor pump and the low-pressure chamber via pipeline, and is used to adsorb moisture.

[0096] The connections of each component are as follows: The inlet pipe of the valve body air circuit module is connected to the air tank via a high-pressure pipe, and the outlet pipe is connected to the low-pressure chamber via a pipe. The compressor pump inlet of the electric drive module is connected to the low-pressure chamber, and the outlet is connected to the dryer. The electronic control module is connected to the solenoid valve, motor, and pressure sensor via wires. The pressure sensor is installed in the air circuit to monitor the pressure.

[0097] The electronic control module executes the regenerative control algorithm, pressure regulation strategy, and temperature-pressure coordinated control method, as detailed below:

[0098] Regeneration Control Algorithm: The electronic control module monitors the humidity status of the air drying module via a humidity sensor, or determines regeneration needs based on preset time intervals. When regeneration conditions are met, the control gas path switching solenoid valve opens, allowing high-pressure gas from the storage tank (pressure range: 0.8-1.2 MPa) to flow through the motor busbar inlet and outlet. The gas is heated by the motor windings, reaching a temperature of 60-80°C. The heated gas is then introduced into the low-pressure chamber through the motor busbar outlet, and then enters the dryer through the one-way valve on the compressor pump to regenerate the dryer. Simultaneously, the control pressure limiting exhaust solenoid valve opens, venting the gas containing moisture to the atmosphere.

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

[0100] Temperature-pressure coordinated control method: The electronic control module dynamically adjusts control parameters based on the motor winding temperature (monitored by a temperature sensor) and the air pressure. When the motor winding temperature is higher than the temperature threshold (e.g., 80°C), the winding heating time is reduced (e.g., from 10 minutes to 5 minutes) or the pressure setpoint is lowered (e.g., from 1.0 MPa to 0.8 MPa). When the air pressure is higher than the pressure threshold (e.g., 1.0 MPa), the winding heating 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 according to real-time data, for example, prioritizing pressure relief at high pressure and extending the heating time at low temperature.

[0101] In addition, the electronic control module controls the opening and closing sequence of the solenoid valve assembly to achieve various gas supply modes:

[0102] Inflation mode: The control air circuit switching solenoid valve and the air spring solenoid valve open to supply air to the air spring.

[0103] Venting mode: Controls the opening of the air spring solenoid valve and the air path switching solenoid valve to recover the air spring gas to the low-pressure chamber.

[0104] Regeneration mode: The control air path switching solenoid valve and the pressure limiting exhaust solenoid valve are opened to perform winding heating regeneration.

[0105] Through the above structure and working principle, this embodiment can effectively realize the regeneration of the dryer and the regulation of system pressure, and optimize system performance through temperature-pressure coordinated control. Compared with the prior art, it improves energy utilization efficiency (utilizing waste heat in the regeneration process), reduces energy consumption, extends the dryer's lifespan, and ensures stable system operation.

[0106] Example 2

[0107] This embodiment provides an air supply unit control method, which is implemented through an integrated electronic control module and includes the following steps:

[0108] Step 1: Execute the regeneration control algorithm

[0109] The control air circuit switching solenoid valve opens, allowing high-pressure gas from the gas tank to enter the motor busbar air inlet.

[0110] The gas is heated by the motor windings to generate hot air (temperature range: 60-80°C).

[0111] Hot air is introduced into the low-pressure chamber through the motor busbar vent.

[0112] Hot air is sent into the dryer for regeneration via a check valve on the compressor pump.

[0113] The pressure-limiting exhaust solenoid valve opens to release moisture.

[0114] Step 2: Implement pressure regulation strategy

[0115] The gas pressure is continuously monitored by a pressure sensor.

[0116] When the pressure exceeds the upper limit threshold (e.g., 1.0 MPa), the pressure-limiting and venting solenoid valve opens to release pressure.

[0117] When the pressure is below the lower threshold (e.g., 0.6 MPa), the control electric drive module starts, compresses air, and fills the system.

[0118] In regeneration mode, pressure control and heating regeneration are coordinated, for example, pressure relief is paused during regeneration to avoid pressure fluctuations affecting system stability.

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

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

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

[0122] Adjust the opening and closing sequence of the solenoid valve and the operating status of the electric drive module based on real-time temperature and pressure data, for example, prioritizing regeneration and pressure relief under high temperature and high pressure conditions.

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

[0124] Example 3

[0125] The difference between this embodiment and Embodiment 1 lies in the detailed structure of the valve body pneumatic circuit module. The metal valve body of the pneumatic circuit module is made of stainless steel. The inner diameter of the wound-swept inlet and outlet pipes is 5mm, and the wall thickness is 1.5mm. A double-layer sealing structure is used with the motor busbar sealing ring to ensure airtightness. The pneumatic circuit switching solenoid valve, pressure-limiting exhaust solenoid valve, and air spring solenoid valve are high-frequency response solenoid valves (response time less than 5ms).

[0126] The wound-resistance intake line integrates a temperature sensor to monitor the gas temperature in real time and feed the data back to the electronic control module. The wound-resistance outlet line is equipped with a pressure damper to reduce pressure fluctuations.

[0127] This embodiment, due to the use of optimized structure and materials, has significantly improved heat conduction efficiency and airtightness. Compared with Embodiment 1, the regeneration efficiency is increased by 15% and the system pressure fluctuation is reduced by 10%, making it suitable for high-frequency operation scenarios.

[0128] Example 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 an ARM Cortex-M7 core with a main frequency of 200MHz, supporting floating-point operations and capable of quickly processing multi-sensor data. The heat dissipation protrusions on the heat dissipation cover are made of copper-based composite material, and the grounding protrusions are connected through a multi-point grounding design.

[0130] The electronic control module also includes non-volatile memory for storing historical operating data and fault codes. The controller base is equipped with a rubber waterproof seal, achieving an IP67 protection rating.

[0131] Thanks to the adoption of a high-performance microprocessor and enhanced heat dissipation design, the control response speed of this embodiment is improved by 25%, the data processing capability is enhanced, the stability of operation in harsh environments (such as high temperature and high humidity) is improved, and the failure rate is reduced.

[0132] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0133] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

Claims

1. An air supply unit control system, comprising an electric control module, a valve body air path module, an electric drive module, and an air drying module, characterized in that: the valve body air path module comprises a winding heating regeneration air path configured to guide high-pressure gas from a gas storage tank to a low-pressure cavity after being heated by a motor winding; the winding heating regeneration air path comprises a winding resistance air inlet pipeline and a winding resistance air outlet pipeline in a metal valve body, and the air path cooperates with a motor busbar sealing ring to ensure air tightness and heat conduction efficiency; the electric control module is configured to execute a regeneration control algorithm and a pressure regulation strategy, wherein: the regeneration control algorithm controls solenoid valves on the winding heating regeneration air path to achieve dryer regeneration; the pressure regulation strategy adjusts the opening and closing of solenoid valves based on signals from a pressure sensor to maintain system pressure; the electric control module also executes a temperature-pressure cooperative control method to dynamically adjust regeneration and pressure control parameters according to the temperature of the motor winding and the air path pressure; the temperature-pressure cooperative control method comprises: when the motor winding temperature is higher than a temperature threshold, reducing the winding heating time or lowering the pressure set point; when the air path pressure is higher than a pressure threshold, automatically starting the winding heating regeneration mode to reduce humidity; adjusting the opening and closing timing of solenoid valves and the operating state of the electric drive module according to real-time temperature and pressure data.

2. The air supply unit control system according to claim 1, characterized by, the regeneration control algorithm comprises: monitoring the humidity state of the air drying module or determining the regeneration demand based on a preset time interval; when the regeneration condition is met, controlling the air path switching solenoid valve to guide the high-pressure gas from the gas storage tank to the motor busbar air inlet hole; heating the gas using the motor winding; introducing the heated gas into the low-pressure cavity through the motor busbar air outlet hole; sending the heated gas into the dryer through a one-way valve on the compression pump; controlling the pressure limiting exhaust solenoid valve to open to exhaust the gas containing water vapor to the atmosphere.

3. The air supply unit control system of claim 1, wherein the pressure regulation strategy comprises: monitoring the air path pressure in real time through a pressure sensor; when the pressure exceeds a preset upper threshold, controlling the pressure limiting exhaust solenoid valve to open to release pressure; when the pressure is lower than a preset lower threshold, controlling the electric drive module to start the air charging operation.

4. The air supply unit control system of claim 1, wherein the electric control module controls the opening and closing sequence of the solenoid valve group to realize multiple air supply forms, including air charging mode, air discharging mode, and regeneration mode, wherein: in the air charging mode, the air path switching solenoid valve and the air spring solenoid valve are controlled to open to supply air to the air spring; in the air discharging mode, the air spring solenoid valve and the air path switching solenoid valve are controlled to open to recover the air spring gas to the low-pressure cavity; in the regeneration mode, the air path switching solenoid valve and the pressure limiting exhaust solenoid valve are controlled to open to perform winding heating regeneration.

5. The air supply unit control system of claim 1, wherein the electric 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.

6. An air supply unit control method applied to the system according to any one of claims 1 to 5, characterized in that, comprising the following steps: executing the regeneration control algorithm to control the solenoid valves in the winding heating regeneration air path so that the high-pressure gas from the gas storage tank is heated by flowing through the motor winding and then used for dryer regeneration; executing the pressure regulation strategy to control the opening and closing of solenoid valves based on signals from a pressure sensor to regulate system pressure; The temperature-pressure coordinated control is performed, and the regeneration and pressure control parameters are dynamically adjusted according to the motor winding temperature and the gas path pressure. The regeneration control algorithm, the pressure regulation strategy and the temperature-pressure coordinated control are integrated by the electric control module.

7. The method of claim 6, wherein, The regeneration control algorithm specifically includes: The gas tank high-pressure gas is introduced into the motor Busbar air inlet hole by controlling the gas path switching electromagnetic valve to open; The motor winding is used to heat the gas to generate hot air; The hot air is introduced into the low-pressure cavity through the motor Busbar air outlet hole; The hot air is sent into the dryer for regeneration through the one-way valve on the compression pump; The wet gas is discharged by controlling the pressure limiting exhaust electromagnetic valve to open.

8. The method of claim 6, wherein, The pressure regulation strategy specifically includes: The gas path pressure is continuously monitored by the pressure sensor; When the pressure exceeds the upper limit threshold, the pressure limiting exhaust electromagnetic valve is controlled to open to release pressure; When the pressure is lower than the lower limit threshold, the electric drive module is started to compress air and charge into the system; In the regeneration mode, the pressure control is coordinated with the heating regeneration.

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