Electromagnetic valve terminal and control method thereof
By designing the solenoid valve terminal, high-precision fluid control is achieved using signal acquisition and logic operations, the problem of low fluid control accuracy in the existing technology is solved, multiple switching and high-precision control are realized, and the scope of application is expanded.
Patent Information
- Application Number
- CN202411561227.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-02-25
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the prior art, it is difficult to achieve high-precision control when controlling fluids, especially in gas source control. Due to factors such as the length, size, plastic deformation amount, and changes in gas usage, the control range is relatively small and the scope of application is limited.
A solenoid valve terminal is designed, including a signal acquisition device, a control unit, a main valve body, a communication network and a high-speed solenoid switch valve group. Through signal acquisition and logical operations, high-precision control of the fluid is achieved.
It realizes the adjustment of the direction, flow rate, speed and other related parameters of the medium without changing the automation basic components that control fluid, realizes multi-channel switching and high-precision control, expands the scope of application, has self-learning functions, and is suitable for intelligent control in multiple scenarios.
Smart Images
Figure CN119508564A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of fluid control, and in particular relates to a solenoid valve island and a control method thereof. Background Art
[0002] In the field of engineering technology, fluid control is generally achieved from the dimension of flow rate or flow. Whether it is controlled by flow rate or flow rate as a parameter, it is generally achieved in the following two ways: the first way is to use frequency (such as inverter) to control the fluid source pump, and collect pressure data (such as pressure sensor) in a closed loop to feedforward control the fluid source pressure; the second way is proportional valve control, with electric or hydraulic or pneumatic proportional valve as the actuator and proportional logic control circuit board as the controller, usually using PLC, DCS, PC, etc. after classic PID calculation for high-precision control. The first method usually uses classic PID algorithm control, but since the gas source control is affected by factors such as pipeline length, size, plastic deformation, and changes in on-site gas consumption, high-precision control is difficult to achieve, resulting in a relatively small scope of application, which is mainly suitable for extensive control applications. The second method uses a proportional logic control circuit as the controller, using PLC, DCS, PC, etc. through classic PID calculations to achieve high-precision control to a certain extent, broadening its scope of application. Compared with the first method, its application scenarios are more flexible and diverse, but the proportional adjustment range is constrained by the PID control algorithm and can only meet its high-precision control requirements within a certain range. In addition, the gas itself has a certain compressibility, which makes its matching calibration in the application scenario extremely cumbersome and complicated, and its portability is relatively poor. Summary of the invention
[0003] The present invention provides a solenoid valve island and a control method thereof to further realize intelligent control.
[0004] The technical solution adopted by the present invention is a solenoid valve island, including a signal acquisition device, a control unit, a main valve body, a communication network and a high-speed solenoid switch valve group, wherein the signal acquisition device is electrically connected to the control unit and outputs electrical signals thereto, the communication network is electrically connected to the application scenario system and the control unit, obtains application scenario-related signals and outputs them to the control unit, the control unit is electrically connected to the high-speed solenoid switch valve group via the communication network, obtains signals, stores data, outputs control signals to the high-speed solenoid switch valve group after logical operations, and feeds back signals to the application scenario system via the communication network, the high-speed solenoid switch valve group is electrically connected to the communication network, and serves as its information output device.
[0005] The overall architecture of the control unit is divided into an application layer and a physical layer, wherein the application layer includes a task timing manager module, a flow core control module, a high-speed electromagnetic switch valve group control module, an erroneous operation protection module, an error manager and diagnosis module, a self-learning function module, and a real-time data recording module; the physical layer includes a bus data input and output and interface module, an operating system module, an I / O signal processing module, a power-off data and memory management module, and a control unit hardware initialization module, wherein: The operating system module and the task timing manager module drive the execution of tasks and control the input or output of the hardware interface. To control the logic to run at a higher crystal frequency cycle, it controls the logic to run at the second highest crystal frequency cycle. The logic is implemented in the flow core control module and the high-speed electromagnetic switch valve group control module, and the auxiliary logic is implemented in other modules. The self-learning function module is responsible for the self-learning of system-related status in specific application scenarios and the operation self-learning of the solenoid valve island in actual use after it has been used for a period of time; The real-time data recording module records the relevant process data of the operation between each module in real time, and timely exchanges real-time data with the communication network and the high-speed electromagnetic switch valve group control module through the bus data input and output and interface module; the I / O signal processing module processes the data exchanged between the flow core control module and the high-speed electromagnetic switch valve group control module and the operating system module in real time, and feeds back to other corresponding modules; The power-off data and memory management module is responsible for real-time data storage after the system is powered off and the allocation of memory required during system operation; the control unit hardware initialization module is responsible for ensuring that all involved electronic control hardware undergoes power-on detection after the system is powered on, and feeds back the detection to the error manager and diagnostic module, and after judgment, feeds back to the misoperation protection module or other corresponding modules. The system is monitored by the error manager and diagnostic module during the entire operation process, and the monitoring results are fed back to the corresponding modules in real time for real-time control adjustment.
[0006] A control method for a solenoid valve island includes initialization, 6 processes to describe the operating conditions and power failure of the solenoid valve island, the 6 processes are: normally closed, normally open, 0-25% normally closed, 0-25% normally open, 50-95% normally closed and 50-95% normally open, after each process, the target position and target flow rate or fluid rate of fluid pressure control are output to guide the automatic control of the solenoid valve island, the high-speed switch solenoid valve group is based on the real-time signal of the signal acquisition device, combined with the flow preset value Q set , flow rate preset value V set 、Maximum flow rate Q max and maximum flow rate V max To make judgments, realize initialization, 0~25% normally closed or normally open, 50%~95% normally closed or normally open, normally closed or normally open.
[0007] The initialization process of the present invention is as follows: The high-speed electromagnetic switch valve group self-learning is not completed, the signal acquisition device self-learning is not completed, the initialization fails, and the diagnosis process is entered; during the diagnosis process, the high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, and the initialization process is entered; Diagnosis runs through the entire control method process, monitoring in real time whether the operation of each state is normal and whether it meets the pre-set relevant boundary conditions. Referring to the fault diagnosis priority level under the specific application scenario, the corresponding diagnosis priority level of the automatic control solenoid valve island is defined. Once the boundary condition is triggered, the fault diagnosis module will call the corresponding diagnosis control program.
[0008] The present invention realizes the process from initialization, 0-25% normally closed, 50-95% normally closed, and normally closed as follows: The high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, the initialization is completed, and the switch valve group matching control process is turned on; During the valve group matching control process, the control unit will control the controlled fluid to perform flow control, and the fluid drive signal value will be immediately distributed to the fluid core control module to prepare for the switch and switch size of the valve group; if the fluid drive signal value is lower than the current controlled fluid output value, the valve group will enter low opening control protection; if the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in a normally closed state, it will enter the 0~25% normally closed process, and then the 50%~95% normally closed process, until the fluid drive signal value is equal to the current controlled fluid output value, and the current opening process of the valve group is maintained; In this process, the high-speed switch solenoid valve group is matched and combined according to the real-time signal value of the signal acquisition device, combined with the real-time fluid flow preset value Q set and the fluid velocity preset value V set To determine, quickly respond to the expected value requirements of the fluid drive signal.
[0009] The present invention realizes the process from initialization, 0-25% normally open, 50-95% normally open, and normally open as follows: The high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, the initialization is completed, and the switch valve group matching control process is turned on; During the valve group matching control process, the control unit will control the controlled fluid to perform flow control, and the fluid drive signal value will be immediately distributed to the fluid core control module to prepare for the switch and switch size of the valve group; if the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally open state, it will enter the normally open state control protection; if the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally open state, it will enter the 0~25% normally open process, and then the 50%~95% normally open process, until the fluid drive signal value is equal to the current controlled fluid output value, and the current opening of the valve group is maintained; In this process, the inlet high-speed switch solenoid valve and the outlet high-speed switch solenoid valve are matched and combined according to the real-time signal value of the signal acquisition device, combined with the real-time fluid flow value Q max and fluid velocity value V max To determine, quickly respond to the expected value requirements of the fluid drive signal.
[0010] After the power is cut off in the present invention, the electronic control unit controls the high-speed switch solenoid valve group according to the current controlled fluid driving value read by the signal acquisition device, and the system saves the corresponding data. The purpose of this state is to make the system power off process controllable, and the power off program starts; The control unit continues to maintain the working state before power failure until all data are stored, and the high-speed switch solenoid valve group remains in a normally closed state.
[0011] The beneficial effects of the present invention are: without changing the basic components of the automation of the control fluid, the control method is used, not limited to hydraulic, pneumatic or other similar methods, to adjust the direction, flow, speed and other related parameters of the medium in the control system to achieve multi-way switching and high-precision control. The control method has a self-learning function, simulates the manipulation habits in skilled application scenarios, and cooperates with the specific application requirements in specific scenarios, further expanding its scope of application and realizing multi-scenario intelligent control.
[0012] The present invention relates to a control method for a solenoid valve island, wherein the logic operations include initialization, normally closed, normally open, partially normally closed, partially normally open, partially normally closed and other processes, and process conversion is performed when conditions are met; the main logic uses the controlled fluid pressure signal α as the initial reference, and the auxiliary logic uses the relevant signals under the specific application scenario system as support, and at the same time refers to the temperature signal β fed back by the signal acquisition device, and finally forms a matching fluid drive signal value, and calls the fluid pressure target position control program according to the fluid drive signal value to drive the high-speed electromagnetic switch valve group, and the high-speed electromagnetic switch valve group realizes fluid diversion control by switching different combination switches.
[0013] The present invention realizes the integration of electricity and fluid in the form of valve island, adapts to the development trend of automatic control technology, provides a very effective technical means for the networking and modularization of automatic control systems, and ideally solves the problem of distributed and centralized control. It can be used as a control module for fast intelligent matching control in the engineering field, especially in the field of vehicle engineering, to achieve decoupling between the vehicle power transmission system and other subsystems of the vehicle, improve system performance, and reduce the workload of system development. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a solenoid valve island working structure diagram; Figure 2It is a control method architecture diagram of a solenoid valve island; Figure 3 It is a main process logic diagram of the control method of a solenoid valve island; Figure 4 It is a process logic diagram between initialization and diagnosis of a control method of a solenoid valve island; Figure 5 It is a control method of a solenoid valve island, initialization, partial normally closed, local normally closed and process logic diagram between normally closed; Figure 6 It is a control method of a solenoid valve island, initialization, partial normally open, local normally open and a process logic diagram between normally open; Figure 7 The invention relates to a control method of a solenoid valve island and a logic diagram of a power-off process. DETAILED DESCRIPTION
[0015] like Figure 1 As shown, a solenoid valve island includes a signal acquisition device 1, a control unit 2, a main valve body 3, a communication network 4 and a high-speed solenoid switch valve group 5, wherein the signal acquisition device 1 is electrically connected to the control unit 2 and outputs electrical signals thereto, the communication network 4 is electrically connected to the application scenario system and the control unit 2, obtains application scenario related signals and outputs them to the control unit 2, the control unit 2 is electrically connected to the high-speed solenoid switch valve group 5 via the communication network 4, obtains signals, stores data, outputs control signals to the high-speed solenoid switch valve group 5 after logical operations, and feeds back signals to the application scenario system via the communication network 4, the high-speed solenoid switch valve group 5 is electrically connected to the communication network 4, and serves as its information output device.
[0016] The control method of the solenoid valve island is to add an automatic control function of the high-speed solenoid switch valve on the basis of the traditional valve island function. The signal acquisition device 1 obtains the characteristic signal of the inlet and outlet fluid in real time and outputs it to the control unit 2. The communication network 4 obtains the application scenario system related signal in real time and outputs it to the control unit 2. The main valve body 3 feeds back the fluid characteristic signal to the control unit 2. The control unit 2 performs logical calculations based on the characteristic signal pressure α, temperature signal β fed back by the signal acquisition device 1, and the relevant application scenario system signal fed back by the communication network 4, formulates a control method and outputs a control signal to the high-speed solenoid switch valve group 5. The high-speed solenoid switch valve group 5 realizes fluid diversion control by switching different combination switches.
[0017] The technology of realizing electric-fluid integration in the form of valve island adapts to the development trend of current automatic control technology, provides a very effective technical means for the networking and modularization of automatic control systems, and ideally solves the problem of distributed and centralized control. Therefore, valve island technology has been widely recognized in the field of engineering technology as soon as it appeared, and its application has been extremely extensive.
[0018] The solenoid valve island and the control method of the solenoid valve island involved in the present invention are based on this realistic application scenario, draw on its advanced design scheme, and perform logical operation control according to the actual application situation, while avoiding the technical bottleneck of foreign raw materials, and finally design a new compact intelligent solenoid valve island.
[0019] like Figure 2 As shown, the overall architecture of the control unit 2 is divided into an application layer 6 and a physical layer 7, wherein the application layer 6 includes a task timing manager module 8, a flow core control module 9, a high-speed electromagnetic switch valve group control module 10, an erroneous operation protection module 11, an error manager and diagnosis module 12, a self-learning function module 13, and a real-time data recording module 14; the physical layer 7 includes a bus data input and output and interface module 15, an operating system module 16, an I / O signal processing module 17, a power-off data and memory management module 18, and a control unit hardware initialization module 19, wherein: The operating system module 16 and the task timing manager module 8 drive the execution of tasks and control the input or output of the hardware interface; the main control logic runs at a higher crystal frequency cycle; other control logics run at the second highest crystal frequency cycle; the main logic is implemented in the flow core control module 9 and the high-speed electromagnetic switch valve group control module 10, and the auxiliary logic is implemented in other modules; The self-learning function module 13 is responsible for the self-learning of the system-related status in a specific application scenario and the operation self-learning of the solenoid valve island in the actual use process after being used for a period of time; The real-time data recording module 14 records the relevant process data of the operation between the modules in real time, and timely exchanges real-time data with the communication network 4 and the high-speed electromagnetic switch valve group control module 10 through the bus data input and output and interface module 15; the I / O signal processing module 17 processes the data exchanged between the flow core control module 9 and the high-speed electromagnetic switch valve group control module 10 and the operating system module 16 in real time, and feeds back to other corresponding modules; The power-off data and memory management module 18 is responsible for real-time data storage after the system is powered off and the allocation of memory required during system operation; the control unit hardware initialization module 19 is responsible for ensuring that all involved electronic control hardware undergoes power-on detection after the system detects power-on, and feeds back the detection to the error manager and diagnostic module 12, and after judgment, feeds back to the misoperation protection module 11 or other corresponding modules. The system is under the monitoring of the error manager and diagnostic module 12 during the entire operation process, and feeds back the monitoring results to the corresponding modules in real time for real-time control adjustment.
[0020] like Figure 3As shown, a control method for a solenoid valve island includes initialization, 6 processes to describe the operating conditions of the solenoid valve island and power failure, the 6 processes are: normally closed, normally open, 0~25% normally closed, 0~25% normally open, 50%~95% normally closed and 50%~95% normally open, after each process, the target position and target flow rate or fluid rate of the fluid pressure control are output to guide the automatic control of the solenoid valve island, the high-speed switch solenoid valve group is based on the real-time signal of the signal acquisition device, combined with the flow preset value Q set , flow rate preset value V set 、Maximum flow rate Q max and maximum flow rate V max To make judgments, realize initialization, 0~25% normally closed or normally open, 50%~95% normally closed or normally open, normally closed or normally open.
[0021] like Figure 4 As shown, the initialization process is as follows: The high-speed electromagnetic switch valve group self-learning is not completed, the signal acquisition device self-learning is not completed, the initialization fails, and the diagnosis process is entered; during the diagnosis process, the high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, and the initialization process is entered.
[0022] Diagnosis runs through the entire control method process, monitoring in real time whether the operation of each state is normal and whether it meets the pre-set relevant boundary conditions. Referring to the fault diagnosis priority level under the specific application scenario, the corresponding diagnosis priority level of the automatic control solenoid valve island is defined. Once the boundary condition is triggered, the fault diagnosis module will call the corresponding diagnosis control program.
[0023] like Figure 5 As shown, the process from initialization, 0~25% normally closed, 50%~95% normally closed, and normally closed is as follows: The high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, the initialization is completed, and the switch valve group matching control process is turned on; In the valve group matching control process, the control unit 2 will control the controlled fluid to perform diversion control, and the fluid drive signal value will be immediately distributed to the fluid core control module to prepare for the switch and switch size of the valve group; if the fluid drive signal value is lower than the current controlled fluid output value, the valve group will enter the low opening control protection; if the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally closed state, it will enter the 0~25% normally closed process, such as 10% or 15%; to the 50%~95% normally closed process, such as 65% or 75%, until the fluid drive signal value is equal to the current controlled fluid output value, and the current opening process of the valve group is maintained; In this process, the high-speed switch solenoid valve group is matched and combined according to the real-time signal value of the signal acquisition device, combined with the real-time fluid flow preset value Q setand the fluid velocity preset value V set To determine, quickly respond to the expected value requirements of the fluid drive signal.
[0024] like Figure 6 As shown, the process from initialization, 0~25% normally open, 50%~95% normally open, and normally open is as follows: The high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, the initialization is completed, and the switch valve group matching control process is turned on; In the valve group matching control process, the control unit 2 will control the controlled fluid to perform diversion control, and the fluid drive signal value will be immediately distributed to the fluid core control module to prepare for the switch and switch size of the valve group; if the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally open state, it will enter the normally open state control protection; the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally open state, it will enter the 0~25% normally open state, such as 10% or 15%; to the 50%~95% normally open process, such as 65% or 75%, until the fluid drive signal value is equal to the current controlled fluid output value, and the current opening process of the valve group is maintained; In this process, the inlet high-speed switch solenoid valve and the outlet high-speed switch solenoid valve are matched and combined according to the real-time signal value of the signal acquisition device, combined with the real-time fluid flow value Q max and fluid velocity value V max To determine, quickly respond to the expected value requirements of the fluid drive signal.
[0025] like Figure 7 As shown, after the power is cut off, the electronic control unit controls the high-speed switch solenoid valve group according to the current controlled fluid drive value read by the signal acquisition device, and the system saves the corresponding data. The purpose of this state is to make the system power-off process controllable, and the power-off program starts; The control unit 2 continues to maintain the working state before power failure until all data are stored, and the high-speed switch solenoid valve group remains in a normally closed state.
[0026] Although the above embodiments are described in detail for the purpose of illustrating the invention, persons familiar with the technical field may make various changes, additions, deletions or equivalent substitutions to the above embodiments without departing from the scope and spirit of the claims of the present invention. Therefore, the present invention is by no means limited to the above embodiments.
Claims
1. A solenoid valve island, characterized in that: It includes a signal acquisition device, a control unit, a main valve body, a communication network and a high-speed electromagnetic switch valve group, wherein the signal acquisition device is electrically connected to the control unit and outputs electrical signals to it, the communication network is electrically connected to the application scenario system and the control unit, obtains application scenario-related signals and outputs them to the control unit, the control unit is electrically connected to the high-speed electromagnetic switch valve group via the communication network, obtains signals, stores data, outputs control signals to the high-speed electromagnetic switch valve group after logical operations, and feeds back signals to the application scenario system via the communication network, the high-speed electromagnetic switch valve group is electrically connected to the communication network, and serves as its information output device.
2. The solenoid valve island according to claim 1, characterized in that: The overall architecture of the control unit is divided into an application layer and a physical layer, wherein the application layer includes a task timing manager module, a flow core control module, a high-speed electromagnetic switch valve group control module, an erroneous operation protection module, an error manager and diagnosis module, a self-learning function module, and a real-time data recording module; the physical layer includes a bus data input and output and interface module, an operating system module, an I / O signal processing module, a power-off data and memory management module, and a control unit hardware initialization module, wherein: The operating system module and the task timing manager module drive the execution of tasks and control the input or output of the hardware interface. To control the logic to run at a higher crystal frequency cycle, it controls the logic to run at the second highest crystal frequency cycle. The logic is implemented in the flow core control module and the high-speed electromagnetic switch valve group control module, and the auxiliary logic is implemented in other modules. The self-learning function module is responsible for the self-learning of system-related status in specific application scenarios and the operation self-learning of the solenoid valve island in actual use after it has been used for a period of time; The real-time data recording module records the relevant process data of the operation between each module in real time, and timely exchanges real-time data with the communication network and the high-speed electromagnetic switch valve group control module through the bus data input and output and interface module; the I / O signal processing module processes the data exchanged between the flow core control module and the high-speed electromagnetic switch valve group control module and the operating system module in real time, and feeds back to other corresponding modules; The power-off data and memory management module is responsible for real-time data storage after the system is powered off and the allocation of memory required during system operation; the control unit hardware initialization module is responsible for ensuring that all involved electronic control hardware undergoes power-on detection after the system is powered on, and feeds back the detection to the error manager and diagnostic module, and after judgment, feeds back to the misoperation protection module or other corresponding modules. The system is monitored by the error manager and diagnostic module during the entire operation process, and the monitoring results are fed back to the corresponding modules in real time for real-time control adjustment.
3. A control method for a solenoid valve island as claimed in claim 1 or 2, characterized in that: It includes initialization, 6 processes to describe the operating conditions and power failure of the solenoid valve island. The 6 processes are: normally closed, normally open, 0~25% normally closed, 0~25% normally open, 50%~95% normally closed and 50%~95% normally open. After each process, the target position and target flow rate or fluid rate of fluid pressure control are output to guide the automatic control of the solenoid valve island. The high-speed switch solenoid valve group is based on the real-time signal of the signal acquisition device, combined with the flow preset value Q set , Flow rate preset value V set 、Maximum flow rate Q max and maximum flow rate V max To make judgments, realize initialization, 0~25% normally closed or normally open, 50%~95% normally closed or normally open, normally closed or normally open.
4. A control method for a solenoid valve island according to claim 3, characterized in that: The initialization process is as follows: The high-speed electromagnetic switch valve group self-learning is not completed, the signal acquisition device self-learning is not completed, the initialization fails, and the diagnosis process is entered; during the diagnosis process, the high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, and the initialization process is entered; Diagnosis runs through the entire control method process, monitoring in real time whether the operation of each state is normal and whether it meets the pre-set relevant boundary conditions. Referring to the fault diagnosis priority level under the specific application scenario, the corresponding diagnosis priority level of the automatic control solenoid valve island is defined. Once the boundary condition is triggered, the fault diagnosis module will call the corresponding diagnosis control program.
5. A control method for a solenoid valve island according to claim 3, characterized in that: The process of initialization, 0~25% normally closed, 50%~95% normally closed, and normally closed is as follows: The high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, the initialization is completed, and the switch valve group matching control process is turned on; During the valve group matching control process, the control unit will control the controlled fluid to perform flow control, and the fluid drive signal value will be immediately distributed to the fluid core control module to prepare for the switch and switch size of the valve group; If the fluid drive signal value is lower than the current controlled fluid output value, the valve group will enter low opening control protection; if the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally closed state, it will enter the 0~25% normally closed process, and then the 50%~95% normally closed process, until the fluid drive signal value is equal to the current controlled fluid output value, and the current opening process of the valve group is maintained; In this process, the high-speed switch solenoid valve group is matched and combined according to the real-time signal value of the signal acquisition device, combined with the real-time fluid flow preset value Q set and the fluid velocity preset value V set To determine, quickly respond to the expected value requirements of the fluid drive signal.
6. A control method for a solenoid valve island according to claim 3, characterized in that: The process of initialization, 0~25% normally open, 50%~95% normally open, and normally open is as follows: The high-speed electromagnetic switch valve group self-learning is completed, the signal acquisition device self-learning is completed, the initialization is completed, and the switch valve group matching control process is turned on; During the valve group matching control process, the control unit will control the controlled fluid to perform flow control, and the fluid drive signal value will be immediately distributed to the fluid core control module to prepare for the switch and switch size of the valve group; If the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally open state, it will enter the normally open state control protection; if the fluid drive signal value is higher than the current controlled fluid output value and the valve group is in the normally open state, it will enter the 0~25% normally open process, and then the 50%~95% normally open process, until the fluid drive signal value is equal to the current controlled fluid output value, and the current opening process of the valve group is maintained; In this process, the inlet high-speed switch solenoid valve and the outlet high-speed switch solenoid valve are matched and combined according to the real-time signal value of the signal acquisition device, combined with the real-time fluid flow value Q max and fluid velocity value V max To determine, quickly respond to the expected value requirements of the fluid drive signal.
7. A control method for a solenoid valve island according to claim 3, characterized in that: After the power is cut off, the electronic control unit controls the high-speed switch solenoid valve group according to the current controlled fluid driving value read by the signal acquisition device, and the system saves the corresponding data. The purpose of this state is to make the system power-off process controllable, and the power-off program starts; The control unit continues to maintain the working state before power failure until all data are stored, and the high-speed switch solenoid valve group remains in a normally closed state.