A pcu pressure control module and a control method thereof

Abstract

The application provides a PCU pressure control module and a control method thereof, and relates to the technical field of pressure control. The PCU pressure control module comprises a power supply module and a hydraulic module. The hydraulic module is provided with a first oil inlet and a second oil inlet. A booster valve one is arranged on a first main path. A booster valve two is arranged on a second main path. An oil outlet end of the first main path is provided with a first oil outlet. A balance oil path is arranged between an inlet end of the first main path and an inlet end of the second main path. A balance valve is arranged on the balance oil path. A pressure sensor is arranged at the end of the balance oil path. A first branch path is in communication with the first main path. A second branch path is in communication with the second main path. A pressure reducing valve one is arranged on the first branch path. A pressure reducing valve two is arranged on the second branch path. The oil outlet ends of the first branch path and the second branch path are in communication with an output oil path. The output oil path is provided with a second oil outlet. The power supply module is used for supplying power to the hydraulic module. The defects of inaccurate pressure regulation and reaction lag in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of pressure control technology, and in particular to a PCU pressure control module and its control method. Background Technology

[0002] With the continuous development of vehicle electrification and intelligence, the demand for electromechanical-hydraulic servo braking systems is also increasing, among which the PCU (Pressure Control Unit) hydraulic control module is the core component of the entire system.

[0003] In hydraulic or pneumatic systems, pressure control is crucial for system stability and safety. Traditional pressure control methods typically rely on simple mechanical valves or rudimentary electrical control systems, often resulting in inaccurate regulation and delayed response. Summary of the Invention

[0004] This invention provides a PCU pressure control module and its control method to solve the defects of inaccurate pressure regulation and lag in the prior art.

[0005] On one hand, the present invention provides a PCU pressure control module, including a power supply module and a hydraulic module. The hydraulic module is provided with a first oil inlet and a second oil inlet. The first oil inlet is located on a first main line, and the second oil inlet is located on a second main line. A pressure boosting valve one is provided on the first main line, and a pressure boosting valve two is provided on the second main line. A first oil outlet is provided at the oil outlet end of the first main line, and the oil outlet end of the second main line is connected to the first main line. A balancing oil circuit is provided between the inlet end of the first main line and the inlet end of the second main line. A balancing valve is provided on the balancing oil circuit, and a pressure sensor is provided at the end of the balancing oil circuit. A first branch is connected to the first main line, and a second branch is connected to the second main line. A pressure reducing valve one is provided on the first branch, and a pressure reducing valve two is provided on the second branch. The oil outlet ends of both the first and second branches are connected to an output oil circuit. The oil outlet end of the output oil circuit is provided with a second oil outlet. The power supply module is used to supply power to the hydraulic module.

[0006] Preferably, the power supply module includes a housing, a top cover, five power supply components, a circuit board, and an electrical connector socket. The top cover is glued to the upper end of the housing. The circuit board is installed inside the housing. All five power supply components are installed on the bottom surface of the housing. The power supply components are electrically connected to the circuit board. The electrical connector socket is installed inside the housing.

[0007] Preferably, a coil support base is also provided between the power supply component and the bottom surface of the housing. The coil support base includes: a support body, a mounting hole provided on the support body for installing the power supply component, and two sets of elastic parts symmetrically arranged on the front and rear sides of the support body, with protrusions fixedly connected to the elastic parts.

[0008] On the other hand, the present invention also provides a control method for a PCU pressure control module, comprising:

[0009] Step S1: Obtain the real-time output pressure of the first oil outlet and the second oil outlet;

[0010] Step S2: Correct the pressure output values ​​of the first and second oil outlets based on the target pressures of the first and second oil outlets;

[0011] Step S3: Determine the operational safety of the pressure control module based on the pressure correction status.

[0012] Preferably, step S2 includes:

[0013] Step S21: Compare the real-time output pressure of the first oil outlet and the second oil outlet with the target pressure of the first oil outlet and the second oil outlet to determine the first pressure output deviation value of the first oil outlet and the second oil outlet.

[0014] ;in, This represents the first pressure output deviation value of the i-th oil outlet; The target pressure for the i-th oil outlet; Let be the real-time output pressure of the i-th oil outlet; It is the absolute value symbol;

[0015] Step S22: Perform preliminary corrections on the pressure output values ​​of the first and second oil outlets respectively, and obtain the pressure correction coefficients;

[0016] Step S23: Correct the pressure output values ​​of the first and second oil outlets based on the pressure correction coefficient.

[0017] Preferably, step S22 includes:

[0018] Step S221: Adjust the pressure output values ​​of the first oil outlet and the second oil outlet respectively using the corresponding first correction amount as the pressure adjustment value. The first correction amount is less than the first pressure output deviation value of the corresponding oil outlet. Obtain the adjusted pressure output values ​​of the first oil outlet and the second oil outlet.

[0019] Step S222: Calculate the pressure correction coefficients for the first oil outlet and the second oil outlet respectively;

[0020] ;in, This is the pressure correction coefficient for the i-th oil outlet; This represents the adjusted actual pressure output value of the i-th oil outlet. This represents the actual pressure output value of the i-th oil outlet before adjustment. This is the first correction amount for the i-th oil outlet.

[0021] Preferably, step S23 includes:

[0022] Step S231: Calculate the first pressure output deviation value of the first oil outlet and the second oil outlet;

[0023] ;in, This represents the second pressure output deviation value for the i-th oil outlet. The target pressure for the i-th oil outlet; This represents the adjusted actual pressure output value of the i-th oil outlet.

[0024] Step S232: Calculate the second correction amount for the first oil outlet and the second oil outlet;

[0025] ;in, This is the second correction amount for the i-th oil outlet; This is the pressure correction coefficient for the i-th oil outlet;

[0026] Step S233: Correct the pressure output values ​​of the first oil outlet and the second oil outlet based on the second correction amount of the first oil outlet and the second oil outlet.

[0027] Preferably, step S3 includes:

[0028] Step S31: Acquire pressure fluctuation data during the pressure regulation process;

[0029] Step S32: Calculate the safety factor of the pressure control module;

[0030] ;in, The static safety factor for the pressure control module; This represents the average pressure fluctuation value of the i-th oil outlet under steady-state conditions. The target pressure for the i-th oil outlet; This represents the maximum pressure deviation value of the i-th oil outlet during this pressure adjustment process; This represents the theoretical pressure adjustment value for the i-th oil outlet during this pressure adjustment process. Let be the standard deviation of the pressure fluctuation at the i-th oil outlet under steady-state conditions; This represents the noise standard deviation of the pressure sensor. This is the pressure correction coefficient for the i-th oil outlet; The time it takes for the i-th oil outlet to reach a steady state; The unit of time length; The pressure value is expressed in units.

[0031] Step S33: When the safety factor of the pressure control module is less than the preset first threshold, a safety alarm is triggered to remind staff to inspect the pressure control module.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] This technical solution employs a dual-main-circuit design, and through the configuration of booster valves and pressure reducing valves, it can precisely regulate the pressure of each main circuit and its branches, thereby meeting the pressure requirements under different loads and operating conditions. The closed-loop control formed by pressure sensors and solenoid valves improves the accuracy of pressure control. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0035] Figure 1 This is a schematic diagram of the structure of the present invention;

[0036] Figure 2 This is a schematic diagram of the working principle of the hydraulic module of the present invention;

[0037] Figure 3 This is an exploded view of the structure of the present invention;

[0038] Figure 4 This is a schematic diagram of the coil support base of the present invention.

[0039] Figure label:

[0040] 1. Power supply module; 2. Hydraulic module; 3. First oil inlet; 4. Second oil inlet; 5. First main circuit; 6. Second main circuit; 7. Pressure booster valve one; 8. Pressure booster valve two; 9. First oil outlet; 10. Balancing oil circuit; 11. Balancing valve; 12. Pressure sensor; 13. First branch circuit; 14. Second branch circuit; 15. Pressure reducing valve one; 16. Pressure reducing valve two; 17. Second oil outlet; 18. Housing; 19. Top cover; 20. Power supply assembly; 21. Circuit board; 22. Electrical connector socket; 23. Support body; 24. Mounting hole; 25. Elastic part; 26. Protrusion; 27. Coil support base. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0043] Example 1

[0044] This invention provides a PCU pressure control module, including a power supply module 1 and a hydraulic module 2. The hydraulic module 2 is provided with a first oil inlet 3 and a second oil inlet 4. The first oil inlet 3 is located on a first main circuit 5, and the second oil inlet 4 is located on a second main circuit 6. A pressure boosting valve 7 is provided on the first main circuit 5, and a pressure boosting valve 8 is provided on the second main circuit 6. A first oil outlet 9 is provided at the oil outlet end of the first main circuit 5, and the oil outlet end of the second main circuit 6 is connected to the first main circuit 5. A connection is provided between the inlet end of the first main circuit 5 and the inlet end of the second main circuit 6. A balance oil circuit 10 is provided, a balance valve 11 is provided on the balance oil circuit 10, and a pressure sensor 12 is provided at the end of the balance oil circuit 10. A first branch circuit 13 is connected to the first main circuit 5, and a second branch circuit 14 is connected to the second main circuit 6. A pressure reducing valve 15 is provided on the first branch circuit 13, and a pressure reducing valve 16 is provided on the second branch circuit 14. The oil outlets of the first branch circuit 13 and the second branch circuit 14 are both connected to the output oil circuit. A second oil outlet 17 is provided at the oil outlet of the output oil circuit. The power supply module 1 is used to supply power to the hydraulic module 2.

[0045] Preferably, the power supply module 1 includes a housing 18, a top cover 19, five sets of power supply components 20, a circuit board 21, and an electrical connector socket 22. The top cover 19 is glued to the upper end of the housing 18. The circuit board 21 is installed inside the housing 18. All five sets of power supply components 20 are installed on the bottom surface of the housing 18. The power supply components 20 are electrically connected to the circuit board 21. The electrical connector socket 22 is installed inside the housing 18.

[0046] Preferably, a coil support base 27 is also provided between the power supply component 20 and the bottom surface of the housing 18. The coil support base 27 includes: a support body 23, a mounting hole 24 provided on the support body 23 for mounting the power supply component 20, and two sets of elastic parts 25 symmetrically arranged on the front and rear sides of the support body 23, with protrusions 26 fixedly connected to the elastic parts 25.

[0047] The beneficial effects of the above technical solution are as follows:

[0048] This technical solution employs a dual-main-circuit design, and through the configuration of booster valves and pressure reducing valves, it can precisely regulate the pressure of each main circuit and its branches, thereby meeting the pressure requirements under different loads and operating conditions. The pressure sensor 12 and the solenoid valve form a closed-loop control, improving the accuracy of pressure control.

[0049] The power supply module 1 is designed with a combination of a housing 18 and a top cover 19, which can effectively protect the internal circuit board 21 and power supply components 20 from the influence of the external environment, thereby improving the safety and durability of the entire system.

[0050] A coil support 27 is provided between the power supply component 20 and the bottom surface of the housing 18, which can effectively support the power supply component 20 and ensure its good thermal management performance. When the hydraulic module 2 is not installed, the coil will be higher than the housing 18 under the action of the protrusion 26. When the hydraulic module 2 is installed, the coil will be squeezed by the plane of the hydraulic module 2 until the plane of the housing 18 is completely in contact with the hydraulic module 2. At this time, the coil and the solenoid valve magnet can be in the position of maximum electromagnetic force. At this time, the elastic part 25 is compressed and deformed. When the hydraulic module 2 is disassembled, the elastic part 25 will return to its original state, which is convenient for reuse.

[0051] Example 2

[0052] This invention also provides a control method for a PCU pressure control module, used to control a PCU pressure control module as described in Embodiment 1, comprising:

[0053] Step S1: Obtain the real-time output pressure of the first oil outlet 9 and the second oil outlet 17;

[0054] Step S2: Correct the pressure output values ​​of the first oil outlet 9 and the second oil outlet 17 based on the target pressure of the first oil outlet 9 and the second oil outlet 17;

[0055] Step S3: Determine the operational safety of the pressure control module based on the pressure correction status.

[0056] Preferably, step S2 includes:

[0057] Step S21: Compare the real-time output pressure of the first oil outlet 9 and the second oil outlet 17 with the target pressure of the first oil outlet 9 and the second oil outlet 17 to determine the first pressure output deviation value of the first oil outlet 9 and the second oil outlet 17.

[0058] ;in, This represents the first pressure output deviation value of the i-th oil outlet; The target pressure for the i-th oil outlet; Let be the real-time output pressure of the i-th oil outlet; It is the absolute value symbol;

[0059] Step S22: Perform preliminary corrections on the pressure output values ​​of the first oil outlet 9 and the second oil outlet 17 respectively, and obtain the pressure correction coefficient;

[0060] Step S23: Correct the pressure output values ​​of the first oil outlet 9 and the second oil outlet 17 based on the pressure correction coefficient.

[0061] Preferably, step S22 includes:

[0062] Step S221: Adjust the pressure output values ​​of the first oil outlet 9 and the second oil outlet 17 respectively using the corresponding first correction amount as the pressure adjustment value. The first correction amount is less than the first pressure output deviation value of the corresponding oil outlet. Obtain the adjusted pressure output values ​​of the first oil outlet 9 and the second oil outlet 17.

[0063] Step S222: Calculate the pressure correction coefficients for the first oil outlet 9 and the second oil outlet 17 respectively;

[0064] ;in, This is the pressure correction coefficient for the i-th oil outlet; This represents the adjusted actual pressure output value of the i-th oil outlet. This represents the actual pressure output value of the i-th oil outlet before adjustment. This is the first correction amount for the i-th oil outlet.

[0065] Preferably, step S23 includes:

[0066] Step S231: Calculate the first pressure output deviation value of the first oil outlet 9 and the second oil outlet 17;

[0067] ;in, This represents the second pressure output deviation value for the i-th oil outlet. The target pressure for the i-th oil outlet; This represents the adjusted actual pressure output value of the i-th oil outlet.

[0068] Step S232: Calculate the second correction amount for the first oil outlet 9 and the second oil outlet 17;

[0069] ;in, This is the second correction amount for the i-th oil outlet; This is the pressure correction coefficient for the i-th oil outlet;

[0070] Step S233: Correct the pressure output values ​​of the first oil outlet 9 and the second oil outlet 17 based on the second correction amount of the first oil outlet 9 and the second oil outlet 17.

[0071] The beneficial effects of the above technical solution are as follows:

[0072] By acquiring the real-time output pressure of the first oil outlet 9 and the second oil outlet 17 and comparing it with the target pressure, the pressure output deviation can be accurately determined. This precise pressure monitoring mechanism ensures that the pressure control module can be accurately adjusted according to actual needs, improving the control accuracy and stability of the system.

[0073] By performing preliminary corrections and calculating the actual pressure changes generated from these corrections, pressure correction coefficients for the first oil outlet 9 and the second oil outlet 17 are obtained. This allows for the calculation of the correspondence between the setpoint adjustment value and the actual pressure change value, thereby improving the accuracy of the final pressure output value correction, reducing the number of pressure adjustments, and avoiding redundant adjustments that could lead to pressure regulation lag. This optimized pressure regulation process reduces fluctuations and overshoot during regulation, improving the system's response speed and stability.

[0074] Example 3

[0075] Based on Example 2, step S3 includes:

[0076] Step S31: Acquire pressure fluctuation data during the pressure regulation process;

[0077] Step S32: Calculate the safety factor of the pressure control module;

[0078] ;in, The static safety factor for the pressure control module; This represents the average pressure fluctuation value of the i-th oil outlet under steady-state conditions. The target pressure for the i-th oil outlet; This represents the maximum pressure deviation value of the i-th oil outlet during this pressure adjustment process; This represents the theoretical pressure adjustment value for the i-th oil outlet during this pressure adjustment process. Let be the standard deviation of the pressure fluctuation at the i-th oil outlet under steady-state conditions; The noise standard deviation of pressure sensor 12; This is the pressure correction coefficient for the i-th oil outlet; The time it takes for the i-th oil outlet to reach a steady state; The unit of time length; The pressure value is expressed in units.

[0079] Step S33: When the safety factor of the pressure control module is less than the preset first threshold, a safety alarm is triggered to remind staff to inspect the pressure control module.

[0080] In this embodiment, the steady state of the oil outlet refers to the actual pressure output value reaching a stable state after the pressure setpoint is adjusted.

[0081] In this embodiment, the theoretical pressure adjustment value during the pressure regulation process is the difference between the original pressure setting value and the target pressure.

[0082] The beneficial effects of the above technical solution are as follows:

[0083] By comprehensively considering multiple key factors, such as the average pressure fluctuation at the oil outlet, target pressure, maximum pressure deviation, theoretical pressure adjustment value, pressure fluctuation standard deviation, noise standard deviation of pressure sensor 12, pressure correction coefficient, and time to reach steady state, the safety performance of the pressure control module can be evaluated more scientifically and accurately, making the evaluation results more reliable and convincing.

[0084] A preset first threshold is set. When the safety factor of the pressure control module falls below this threshold, the system will automatically issue a safety alarm. This mechanism can promptly alert staff to potential safety hazards in the pressure control module, prompting them to perform timely repairs. This effectively prevents safety accidents caused by pressure control module malfunctions, ensuring the safe and stable operation of the system and reducing safety risks and potential losses.

[0085] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A PCU pressure control module, characterized in that, It includes a power supply module (1) and a hydraulic module (2). The hydraulic module (2) is provided with a first oil inlet (3) and a second oil inlet (4). The first oil inlet (3) is located on the first main line (5), and the second oil inlet (4) is located on the second main line (6). A pressure boosting valve 1 (7) is provided on the first main line (5), and a pressure boosting valve 2 (8) is provided on the second main line (6). A first oil outlet (9) is provided at the oil outlet end of the first main line (5), and the oil outlet end of the second main line (6) is connected to the first main line (5). A balancing oil circuit (10) is provided between the inlet end of the first main line (5) and the inlet end of the second main line (6). Balance valve (11) is provided on balance oil circuit (10), pressure sensor (12) is provided at the end of balance oil circuit (10), first branch (13) is connected to first main circuit (5), second branch (14) is connected to second main circuit (6), pressure reducing valve one (15) is provided on first branch (13), pressure reducing valve two (16) is provided on second branch (14), oil outlets of first branch (13) and second branch (14) are connected to output oil circuit, oil outlet of output oil circuit is provided with second oil outlet (17), power supply module (1) is used to supply power to hydraulic module (2); The PCU pressure control module includes the following control steps: Step S1: Obtain the real-time output pressure of the first oil outlet (9) and the second oil outlet (17); Step S2: Correct the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) based on the target pressure of the first oil outlet (9) and the second oil outlet (17); Step S3: Determine the operational safety of the pressure control module based on the pressure correction status; Step S2 includes: Step S21: Compare the real-time output pressure of the first oil outlet (9) and the second oil outlet (17) with the target pressure of the first oil outlet (9) and the second oil outlet (17) to determine the first pressure output deviation value of the first oil outlet (9) and the second oil outlet (17). ;in, This represents the first pressure output deviation value of the i-th oil outlet; The target pressure for the i-th oil outlet; Let be the real-time output pressure of the i-th oil outlet; It is the absolute value symbol; Step S22: Perform preliminary corrections on the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) respectively, and obtain the pressure correction coefficient; Step S23: Correct the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) based on the pressure correction coefficient; Step S22 includes: Step S221: Adjust the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) respectively using the corresponding first correction amount as the pressure adjustment value. The first correction amount is less than the first pressure output deviation value of the corresponding oil outlet. Obtain the adjusted pressure output values ​​of the first oil outlet (9) and the second oil outlet (17). Step S222: Calculate the pressure correction coefficients for the first oil outlet (9) and the second oil outlet (17) respectively; ;in, This is the pressure correction coefficient for the i-th oil outlet; This represents the adjusted actual pressure output value of the i-th oil outlet. This represents the actual pressure output value of the i-th oil outlet before adjustment. This is the first correction amount for the i-th oil outlet.

2. The PCU pressure control module according to claim 1, characterized in that, The power supply module (1) includes a housing (18), a top cover (19), five power supply components (20), a circuit board (21), and an electrical connector socket (22). The top cover (19) is glued to the upper end of the housing (18). The circuit board (21) is installed inside the housing (18). The five power supply components (20) are all installed on the bottom surface of the housing (18). The power supply components (20) are electrically connected to the circuit board (21). The electrical connector socket (22) is installed inside the housing (18).

3. The PCU pressure control module according to claim 2, characterized in that, A coil support base (27) is also provided between the power supply component (20) and the bottom surface of the outer casing (18). The coil support base (27) includes: a support body (23), a mounting hole (24) is provided on the support body (23), the mounting hole (24) is used to install the power supply component (20), and two sets of elastic parts (25) are symmetrically arranged on the front and rear sides of the support body (23), and a protrusion (26) is fixedly connected to the elastic part (25).

4. A control method for a PCU pressure control module, used to control a PCU pressure control module as described in any one of claims 1-3, characterized in that, include: Step S1: Obtain the real-time output pressure of the first oil outlet (9) and the second oil outlet (17); Step S2: Correct the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) based on the target pressure of the first oil outlet (9) and the second oil outlet (17); Step S3: Determine the operational safety of the pressure control module based on the pressure correction status; Step S2 includes: Step S21: Compare the real-time output pressure of the first oil outlet (9) and the second oil outlet (17) with the target pressure of the first oil outlet (9) and the second oil outlet (17) to determine the first pressure output deviation value of the first oil outlet (9) and the second oil outlet (17). ;in, This represents the first pressure output deviation value of the i-th oil outlet; The target pressure for the i-th oil outlet; Let be the real-time output pressure of the i-th oil outlet; It is the absolute value symbol; Step S22: Perform preliminary corrections on the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) respectively, and obtain the pressure correction coefficient; Step S23: Correct the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) based on the pressure correction coefficient; Step S22 includes: Step S221: Adjust the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) respectively using the corresponding first correction amount as the pressure adjustment value. The first correction amount is less than the first pressure output deviation value of the corresponding oil outlet. Obtain the adjusted pressure output values ​​of the first oil outlet (9) and the second oil outlet (17). Step S222: Calculate the pressure correction coefficients for the first oil outlet (9) and the second oil outlet (17) respectively; ;in, This is the pressure correction coefficient for the i-th oil outlet; This represents the adjusted actual pressure output value of the i-th oil outlet. This represents the actual pressure output value of the i-th oil outlet before adjustment. This is the first correction amount for the i-th oil outlet.

5. The control method for a PCU pressure control module according to claim 4, characterized in that, Step S23 includes: Step S231: Calculate the first pressure output deviation value between the first oil outlet (9) and the second oil outlet (17); ;in, This represents the second pressure output deviation value for the i-th oil outlet. The target pressure for the i-th oil outlet; This represents the adjusted actual pressure output value of the i-th oil outlet. Step S232: Calculate the second correction amount for the first oil outlet (9) and the second oil outlet (17); ;in, This is the second correction amount for the i-th oil outlet; This is the pressure correction coefficient for the i-th oil outlet; Step S233: Correct the pressure output values ​​of the first oil outlet (9) and the second oil outlet (17) based on the second correction amount of the first oil outlet (9) and the second oil outlet (17).

6. The control method for a PCU pressure control module according to claim 4, characterized in that, Step S3 includes: Step S31: Acquire pressure fluctuation data during the pressure regulation process; Step S32: Calculate the safety factor of the pressure control module; ;in, The static safety factor for the pressure control module; This represents the average pressure fluctuation value of the i-th oil outlet under steady-state conditions. The target pressure for the i-th oil outlet; This represents the maximum pressure deviation value of the i-th oil outlet during this pressure adjustment process; This represents the theoretical pressure adjustment value for the i-th oil outlet during this pressure adjustment process. Let be the standard deviation of the pressure fluctuation at the i-th oil outlet under steady-state conditions; The noise standard deviation of the pressure sensor (12); This is the pressure correction coefficient for the i-th oil outlet; The time it takes for the i-th oil outlet to reach a steady state; The unit of time length; The pressure value is expressed in units. Step S33: When the safety factor of the pressure control module is less than the preset first threshold, a safety alarm is triggered to remind staff to inspect the pressure control module.

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