A pressure reducing valve control method, device, equipment and storage medium

Abstract

The application discloses a pressure reducing valve control method, device, equipment and storage medium. The method comprises the following steps: acquiring a hydraulic pressure difference, an end voltage and a target working time length of a pressure reducing valve under a target hydraulic environment; the target working time length is used for indicating the time length during which the pressure reducing valve can work under the target hydraulic environment; analyzing a control opening time length of the pressure reducing valve according to the hydraulic pressure difference, the end voltage and the target working time length to obtain the control opening time length; the control opening time length is the time length during which an excitation voltage is provided to the pressure reducing valve; and the excitation voltage is provided to the pressure reducing valve within the control opening time length. The application can quickly and accurately calculate the control opening time length of the pressure reducing valve under the target hydraulic environment in a real-time control system, and then the closing time of the pressure reducing valve can be quickly and accurately obtained, and further, the accuracy of pressure estimation of the hydraulic environment and control of the pressure reducing valve in the real-time control system can be improved.

Description

Technical Field

[0001] This application relates to the field of control technology for pressure reducing valves in vehicle drive-by-wire systems, and particularly to a pressure reducing valve control method, device, equipment, and storage medium. Background Technology

[0002] A pressure reducing valve is a normally closed, voltage-excited on / off valve widely used in online control braking products. In practical applications, the pressure reducing valve opens when the wheel cylinder needs pressure reduction. The opening time of the pressure reducing valve controls the amount of fluid to be reduced, thereby controlling the hydraulic pressure. In this process, the estimation of the actual working time of the pressure reducing valve directly affects the estimated fluid flow rate and pressure during pressure reduction; the closing delay time of the pressure reducing valve is a part of the actual working time.

[0003] In existing technologies, the closing point of the pressure reducing valve is identified by sampling the inflection point of the voltage across the valve, the closing delay is calculated, and the actual opening time of the pressure reducing valve is corrected. However, this method requires a long detection time and cannot be applied to real-time control. Summary of the Invention

[0004] To address the technical problem that the detection time is too long and cannot be applied to real-time control, this application discloses a pressure reducing valve control method that can solve the above-mentioned technical problem.

[0005] To achieve the above-mentioned objective, this application provides a pressure reducing valve control method, the method comprising:

[0006] The pressure reducing valve is obtained from the hydraulic differential, terminal voltage, and target operating time under the target hydraulic environment; the target operating time is used to indicate the duration for which the pressure reducing valve can operate under the target hydraulic environment.

[0007] Based on the hydraulic differential, the terminal voltage, and the target operating time, the control opening time of the pressure reducing valve is analyzed to obtain the control opening time; the control opening time is the duration for which excitation voltage is provided to the pressure reducing valve.

[0008] During the control activation period, an excitation voltage is provided to the pressure reducing valve.

[0009] In some embodiments, the method further includes: obtaining a target correspondence between the hydraulic differential, the terminal voltage, the target operating duration, and the control activation duration;

[0010] The step of analyzing the control opening duration of the pressure reducing valve based on the hydraulic differential, the terminal voltage, and the target operating time to obtain the control opening duration includes:

[0011] The control activation duration is obtained by filtering out the control activation duration corresponding to the hydraulic differential, the terminal voltage, and the target working duration from the target correspondence.

[0012] In some implementations, obtaining the target correspondence between the hydraulic differential, the terminal voltage, the target operating duration, and the control activation duration includes:

[0013] Obtain a first correspondence between the control activation duration and the target operating duration and the shutdown delay duration, and a second correspondence between the control activation duration and the hydraulic differential, the terminal voltage, and the shutdown delay duration; wherein, the shutdown delay duration is the duration from stopping the supply of excitation voltage to the pressure reducing valve to the pressure reducing valve stopping operation;

[0014] The first correspondence and the second correspondence are decoupled to obtain the target correspondence.

[0015] In some embodiments, obtaining the second correspondence between the control on-time and the hydraulic differential, the terminal voltage, and the off-time includes:

[0016] Obtain a first correspondence between the hydraulic pressure difference and the first current, a second correspondence between the terminal voltage and the control opening duration and the second current, and a third correspondence between the first current, the second current, and the closing delay duration; the first current is used to indicate the current when the pressure reducing valve actually stops working; the second current is used to indicate the current when the excitation voltage to the pressure reducing valve is stopped.

[0017] The first correspondence, the second correspondence, and the third correspondence are decoupled to obtain the second correspondence.

[0018] In some embodiments, the method further includes:

[0019] The difference between the target working time and the control activation time is determined as the shutdown delay time.

[0020] In some embodiments, providing an excitation voltage to the pressure reducing valve during the control opening duration includes:

[0021] Obtain the start time of providing excitation voltage to the hydraulic valve and the duration of providing excitation voltage;

[0022] If the duration reaches the control activation duration, the excitation voltage supplied to the pressure reducing valve is stopped.

[0023] In some embodiments, obtaining the target operating time of the pressure reducing valve includes:

[0024] The target pressure of the pressure reducing valve in the target hydraulic environment is obtained, and the target pressure is the pressure after the hydraulic valve reduces the pressure in the target hydraulic environment in a pre-set manner.

[0025] The target working time is obtained by predicting the working time based on the target pressure and the hydraulic pressure difference.

[0026] This application also provides a pressure reducing valve control device, the device comprising:

[0027] The first acquisition module is used to acquire the pressure difference, terminal voltage, and target operating time of the pressure reducing valve under the target hydraulic environment; the target operating time is used to indicate the duration for which the pressure reducing valve can operate under the target hydraulic environment.

[0028] The first analysis module is used to analyze the control opening duration of the pressure reducing valve based on the hydraulic differential, the terminal voltage, and the target working duration, to obtain the control opening duration; the control opening duration is the duration for which excitation voltage is provided to the pressure reducing valve.

[0029] A voltage supply module is used to provide an excitation voltage to the pressure reducing valve during the control activation period.

[0030] This application also provides a pressure reducing valve control device, the device including a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by the processor to implement the pressure reducing valve control method as described above.

[0031] This application also provides a computer-readable storage medium storing at least one instruction or at least one program, wherein the at least one instruction or at least one program is loaded by a processor and executed as described above for the pressure reducing valve control method.

[0032] Implementing the embodiments of this application has the following beneficial effects:

[0033] The pressure reducing valve control method of this application, by obtaining the target working time of the pressure reducing valve in the target hydraulic environment, as well as the hydraulic pressure difference and terminal voltage of the pressure reducing valve, can quickly and accurately calculate the control opening time of the pressure reducing valve in the target hydraulic environment in the real-time control system. In turn, it can quickly and accurately obtain the closing time of the pressure reducing valve (the termination time of the control opening time), and further improve the accuracy of pressure estimation in the hydraulic environment and control of the pressure reducing valve in the real-time control system. Attached Figure Description

[0034] To more clearly illustrate the pressure reducing valve control method, apparatus, equipment, and storage medium described in this application, the accompanying drawings required for the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 A schematic diagram illustrating the implementation environment of a pressure reducing valve control method provided in this application embodiment;

[0036] Figure 2 A schematic flowchart illustrating a pressure reducing valve control method provided in an embodiment of this application;

[0037] Figure 3 A schematic diagram illustrating the relationship between the second current, the control on-time, and the hydraulic differential, provided in an embodiment of this application;

[0038] Figure 4 This application provides a schematic flowchart of a method for operating a pressure reducing valve in a target hydraulic environment.

[0039] Figure 5 This application provides a schematic diagram illustrating the change in current during the opening and closing of a pressure reducing valve;

[0040] Figure 6 This application provides a schematic diagram illustrating the change in current when the control on duration is relatively short.

[0041] Figure 7 This is a schematic diagram of the structure of a pressure reducing valve control device provided in an embodiment of this application;

[0042] Figure 8 This is a schematic diagram of an electronic device for a pressure reducing valve control method provided in an embodiment of this application. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or server that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0045] Please see Figure 1 It illustrates a schematic diagram of the implementation environment provided in the embodiments of this application, which may include:

[0046] At least one terminal 01 and at least one server 02. The at least one terminal 01 and the at least one server 02 can communicate data via a network.

[0047] In an optional embodiment, terminal 01 may be the executor of the pressure reducing valve control method. Terminal 01 may be, but is not limited to, electronic devices such as in-vehicle terminals, smartphones, desktop computers, tablets, laptops, smart speakers, digital assistants, augmented reality (AR) / virtual reality (VR) devices, and smart wearable devices. The operating system running on the first terminal 01 may include, but is not limited to, Android, iOS, Linux, Windows, and Unix.

[0048] Server 02 can provide terminal 01 with the target operating time of the pressure reducing valve under the target hydraulic environment. Optionally, server 02 can be a standalone physical server, a server cluster or distributed system composed of multiple physical servers, or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communication, middleware services, domain name services, security services, CDN (Content Delivery Network), and big data and artificial intelligence platforms.

[0049] Please refer to Figure 2The diagram shows a flowchart illustrating a pressure-reducing valve control method according to an embodiment of this application. This specification provides the operational steps of the method described in the embodiments or flowchart, but based on conventional or non-inventive methods, more or fewer operational steps may be included. The order of steps listed in the embodiments is merely one possible execution order among many steps and does not represent the only possible execution order. The pressure-reducing valve control method can be executed according to the order shown in the embodiments or drawings.

[0050] Specific examples Figure 2 As shown, the method includes:

[0051] S201, obtain the pressure difference, terminal voltage, and target operating time of the pressure reducing valve under the target hydraulic environment.

[0052] In this embodiment, the target operating time is used to indicate the duration for which the pressure reducing valve can operate under the target hydraulic environment. The target hydraulic environment can be the hydraulic environment in which the pressure reducing valve operates within one operating cycle; the operating cycle can be the opening duration of the pressure reducing valve under a certain hydraulic environment; as an example, the actual opening time can refer to the time occupied from the opening of the pressure reducing valve until the pressure reducing valve stops operating.

[0053] To obtain the target operating time of the pressure reducing valve under the target hydraulic environment:

[0054] In some exemplary embodiments, the target pressure of the pressure reducing valve under the target hydraulic environment can be obtained; further, the working time is calculated based on the target pressure and the hydraulic differential to obtain the target working time. The target pressure is the pressure after the hydraulic valve reduces pressure in the target hydraulic environment (pre-set setting).

[0055] In one example, a preset relationship model and the correspondence between the target pressure and the flow rate and volume of the liquid in the target hydraulic environment can be obtained. The hydraulic differential is input into the preset relationship model to obtain the liquid flow rate. The target flow rate and volume are obtained from the correspondence based on the target pressure. Therefore, the quotient between the target flow rate and the flow rate can be determined as the target operating time. The preset relationship model characterizes the relationship between the hydraulic differential and the flow rate of the liquid in the target hydraulic environment; the target flow rate and volume characterize the flow rate and volume of the liquid in the target hydraulic environment within the target operating time.

[0056] As an example, the predefined relational model can be represented by the following functional model:

[0057] q=a*A*2 / ρ*dp

[0058] Where q represents flow rate, a represents constant correction coefficient, A represents cross-sectional area of ​​pressure reducing valve orifice, ρ represents liquid density, and dp represents hydraulic differential.

[0059] In some other exemplary embodiments, the ambient pressure corresponding to the target hydraulic environment and the correspondence between the ambient pressure and the target working time can be obtained; further, the working time corresponding to the ambient pressure can be obtained from the correspondence based on the ambient pressure, and then the working time can be determined as the target working time.

[0060] S203, based on the hydraulic differential, terminal voltage and target working time, analyze the control opening time of the pressure reducing valve to obtain the control opening time.

[0061] In this embodiment, the control opening duration is the duration for which an excitation voltage is provided to the pressure reducing valve.

[0062] In some exemplary embodiments, a target correspondence can be obtained between hydraulic differential, terminal voltage, target operating time, and control activation time; then, the control activation time corresponding to the hydraulic differential, terminal voltage, and target operating time can be filtered from the target correspondence to obtain the control activation time. The target correspondence can be pre-defined. As an example, the target correspondence can be displayed in tabular form, such as a correspondence table.

[0063] Specifically, regarding the target correspondence, when the target working time is a fixed value, the duration of the control opening is negatively correlated with the terminal voltage and positively correlated with the hydraulic differential.

[0064] As an example, the target correspondence can be represented by the following expression:

[0065] Expression 1: T = T′ - f(U, T, dp)

[0066] Where T represents the control start-up duration, T' represents the target working duration, U represents the terminal voltage, dp represents the hydraulic differential, and f(U,T,dp) represents the shut-off delay duration.

[0067] In a specific example, to obtain the target correspondence between hydraulic differential, terminal voltage, target operating time, and control opening time, a first correspondence between control opening time and target operating time and closing delay time, and a second correspondence between control opening time and hydraulic differential, terminal voltage, and closing delay time can be obtained. Further, the first and second correspondences are decoupled to obtain the target correspondence. Here, the closing delay time is the time from stopping the supply of excitation voltage to the pressure reducing valve until the pressure reducing valve stops operating.

[0068] Specifically, for the first correspondence, when the target working time is a fixed value, the control start time and the shutdown delay time are negatively correlated.

[0069] As an example, the first correspondence can be represented by the following expression two;

[0070] Expression 2: T′=T+t_delay

[0071] Where T represents the control start duration, T' represents the target working duration, and t_delay represents the shutdown delay duration.

[0072] Specifically, regarding the second correspondence, the duration of the closing extension is positively correlated with the control opening duration and the terminal voltage, and negatively correlated with the hydraulic differential.

[0073] As an example, the second correspondence can be represented by the following expression three;

[0074] Expression 3: t_delay = f(U,T,dp)

[0075] Where t_delay represents the shutdown delay duration, T represents the control on duration, U represents the terminal voltage, and dp represents the hydraulic differential.

[0076] By using open-loop calibration to obtain the correspondence between various parameters such as hydraulic differential, terminal voltage, target working time, control on-time, and on-off delay, the control on-time can be obtained accurately and quickly in the real-time control system.

[0077] Expression 1 can be obtained by decoupling from Expression 2 and Expression 3 above.

[0078] In one example, for the second correspondence, a first correspondence between hydraulic differential and first current, a second correspondence between terminal voltage and control opening duration and second current, and a third correspondence between first current, second current and closing delay duration can be obtained. Further, the first, second, and third correspondences are decoupled to obtain the second correspondence. Here, the first current indicates the current when the pressure reducing valve actually stops working; the second current indicates the current when the excitation voltage supplied to the pressure reducing valve stops.

[0079] Specifically, for the first correspondence, the magnitude of the first current is positively correlated with the magnitude of the hydraulic pressure difference.

[0080] As an example, expression four can be used to represent the first correspondence;

[0081] Expression 4: I close =f(dp)

[0082] Among them, I close Let f(dp) represent the first current; dp represents the hydraulic pressure difference; f(dp) represents the relationship between the first current and the hydraulic pressure difference.

[0083] For expression four, multiple different hydraulic differentials can be set, and the results of testing the first current under different hydraulic differentials can be obtained; then, based on the multiple hydraulic differentials and the multiple first currents corresponding to each hydraulic differential, open-loop calibration can be performed to obtain the first correspondence.

[0084] For example, the hydraulic differential can be between 10 bar and 120 bar, and the first current test is performed every 10 bar interval.

[0085] Specifically, regarding the second correspondence, when the control opening duration is within a small range, the second current is positively correlated with the control opening duration and positively correlated with the terminal voltage; when the control opening duration reaches the target value, the second current tends to stabilize. The target value varies under different hydraulic environments.

[0086] like Figure 3 As shown, it illustrates a schematic diagram of the relationship between a second current and the control on-time and hydraulic differential provided in an embodiment of this application.

[0087] In this diagram, the horizontal axis represents the control activation duration; the vertical axis represents the second current.

[0088] U1 and U2 refer to different terminal voltages, with U2 being greater than U1. As can be seen from the curves in the figure, a larger terminal voltage corresponds to a larger second current. When the control on-time is within a small range, the second current is positively correlated with the control on-time. When the control on-time reaches the target value, the second current tends to stabilize.

[0089] As an example, expression five can be used to represent the second correspondence;

[0090] Expression 5: I max =f(U,T)

[0091] Among them, I max Let f(U,T) represent the second current, T represent the control on-time, U represent the terminal voltage, and f(U,T) represent the relationship between the current and the control on-time and the terminal voltage.

[0092] For expression five, multiple different sets of terminal voltages can be set, such as two sets, and under each set of terminal voltages, different control opening durations can be set to test the second current that the coil of the pressure reducing valve can reach, so as to obtain multiple second currents. Based on the different set terminal voltages, control opening durations, and the detected second currents under different terminal voltages and different control opening durations, open-loop calibration can be performed to obtain the second correspondence.

[0093] Specifically, for the third correspondence, as an example, the first correspondence can be represented by expression six;

[0094] Expression 6: t_delay = f(I max -I close )

[0095] Where t_delay represents the delay duration for closing, I max Indicates the second current, I close Let f(I) represent the first current. max -I close () represents the difference between the time corresponding to the second current and the time corresponding to the first current.

[0096] In some other exemplary embodiments, a correlation model can be obtained between hydraulic differential, terminal voltage, target operating time and control activation time; the hydraulic differential, terminal voltage and target operating time are assigned to the correlation model to obtain the control activation time; wherein the correlation model is pre-trained.

[0097] Optionally, after calculating the control activation duration, the difference between the target operating duration and the control activation duration can be determined as the shutdown delay duration.

[0098] By understanding the relationship between the target operating time and the control opening time, the closing delay of the pressure reducing valve can be accurately and quickly estimated. This method can improve the estimation efficiency of the pressure reducing valve closing delay in real-time control systems.

[0099] S205 provides excitation voltage to the pressure reducing valve during the control opening period.

[0100] In some exemplary embodiments, the start time of providing excitation voltage to the hydraulic valve and the duration of providing excitation voltage can be obtained; if the duration reaches the control opening duration, the supply of excitation voltage to the pressure reducing valve is stopped.

[0101] In some exemplary embodiments, the end time of the control opening duration can be used as the time when the excitation voltage to the pressure reducing valve is stopped in the real-time control system, thereby accurately estimating the actual time when the pressure reducing valve stops working under the target hydraulic environment.

[0102] In this embodiment, by obtaining the target operating time of the pressure reducing valve under the target hydraulic environment, as well as the hydraulic pressure difference and terminal voltage of the pressure reducing valve, this application can quickly and accurately calculate the control opening time of the pressure reducing valve under the target hydraulic environment in the real-time control system. In turn, the closing time of the pressure reducing valve (the termination time of the control opening time) can be obtained quickly and accurately. Furthermore, the accuracy of pressure estimation in the hydraulic environment and control of the pressure reducing valve can be improved in the real-time control system.

[0103] like Figure 4 The diagram shown is a schematic flowchart of a method for operating a pressure reducing valve in a target hydraulic environment according to an embodiment of this application, as detailed below.

[0104] S401, in response to the pressure reducing valve start command, provides excitation voltage to the pressure reducing valve and obtains the control opening duration of the pressure reducing valve under the target hydraulic environment;

[0105] In this embodiment, the method for obtaining the control activation duration can be based on the method for obtaining the control activation duration described in the above embodiments.

[0106] S403, obtain the start time of providing excitation voltage to the hydraulic valve and the duration of providing excitation voltage;

[0107] In this embodiment of the application, the duration can refer to the time difference between the start time and the current time.

[0108] S405, if the duration reaches the control opening duration, stop supplying excitation voltage to the pressure reducing valve.

[0109] After stopping the supply of excitation voltage to the pressure reducing valve, the method further includes:

[0110] In one exemplary embodiment, the closing delay duration of the pressure reducing valve under the target hydraulic environment is obtained; the delay start time of the hydraulic valve closing delay is obtained; based on the closing delay duration and the delay start time, the actual closing time of the hydraulic valve is estimated to obtain the actual closing time of the hydraulic valve under the target hydraulic environment.

[0111] In one example, the method for obtaining the shutdown delay duration can be based on the method for obtaining the shutdown delay duration in the above embodiments.

[0112] Furthermore, the moment when the excitation voltage to the pressure reducing valve is stopped can be determined as the start time of the hydraulic valve closing delay.

[0113] In this embodiment, by accurately and quickly determining the control opening duration and closing delay duration of the excitation voltage supplied to the pressure reducing valve in the real-time control system, this application can accurately and quickly estimate the start and end times of the pressure reducing valve closing delay, thereby improving the pressure regulation accuracy and precision of the brake-by-wire system.

[0114] In some exemplary embodiments, such as Figure 5 The diagram shown is a schematic diagram illustrating the change in current during the opening and closing of a pressure reducing valve, according to an embodiment of this application.

[0115] Specifically, in this figure, time is the horizontal axis and current is the vertical axis; the rectangle represents the control opening time for applying excitation voltage to the pressure reducing valve; and the curve represents the current change curve.

[0116] t1 represents the delayed start time of the pressure reducing valve, and t2 represents the actual closing time of the hydraulic valve.

[0117] I max Indicates the second current, I close This indicates the first current.

[0118] In one example, such as Figure 6 As shown, this is a schematic diagram illustrating the change in current when the control on-time is short, according to an embodiment of this application.

[0119] Specifically, in this figure, time is the horizontal axis and current is the vertical axis; the rectangle represents the control opening time for applying excitation voltage to the pressure reducing valve; and the curve represents the current change curve.

[0120] If the control activation duration is too short, that is, at time t1', if I max′ Less than I max If the difference between t2' and t1' is less than the difference between t2 and t1, then the difference between t2 and t1 is less than the difference between t2 and t1.

[0121] This application also provides a pressure reducing valve control device, such as... Figure 7 As shown, this is a schematic diagram of a pressure reducing valve control device provided in an embodiment of this application; specifically, the device includes:

[0122] The first acquisition module 701 is used to acquire the pressure difference, terminal voltage, and target operating time of the pressure reducing valve under the target hydraulic environment; the target operating time is used to indicate the duration for which the pressure reducing valve can operate under the target hydraulic environment.

[0123] The first analysis module 702 is used to analyze the control opening duration of the pressure reducing valve based on the hydraulic differential, the terminal voltage, and the target working duration to obtain the control opening duration; the control opening duration is the duration for which excitation voltage is provided to the pressure reducing valve.

[0124] The voltage supply module 703 is used to provide an excitation voltage to the pressure reducing valve during the control opening duration.

[0125] In this embodiment of the application, it also includes:

[0126] The second acquisition module is used to acquire the target correspondence between the hydraulic differential, the terminal voltage, the target working time and the control activation time;

[0127] The first parsing module 702 includes:

[0128] The first analysis unit is used to filter out the control start duration corresponding to the hydraulic differential, the terminal voltage and the target working time from the target correspondence, and obtain the control start duration.

[0129] In this embodiment of the application, the second acquisition module includes:

[0130] The first acquisition unit is used to acquire a first correspondence between the control activation duration and the target working duration and the shutdown delay duration, and a second correspondence between the control activation duration and the hydraulic differential, the terminal voltage and the shutdown delay duration;

[0131] The first processing unit is used to decouple the first correspondence relationship from the second correspondence relationship to obtain the target correspondence relationship.

[0132] In this embodiment of the application, the first acquisition unit includes:

[0133] The first acquisition subunit is used to acquire a first correspondence between the hydraulic pressure difference and the first current, a second correspondence between the terminal voltage and the control opening duration and the second current, and a third correspondence between the first current, the second current and the closing delay duration; the first current is used to indicate the current when the pressure reducing valve actually stops working; the second current is used to indicate the current when the excitation voltage to the pressure reducing valve is stopped.

[0134] Processing subunit. The first, second, and third correspondence sub-relationships are decoupled to obtain the second correspondence relationship.

[0135] In this embodiment of the application, it also includes:

[0136] The second analysis module is used to determine the difference between the target working time and the control opening time as the closing delay time; the closing delay time is the time from stopping the supply of excitation voltage to the pressure reducing valve to the pressure reducing valve stopping working.

[0137] In this embodiment of the application, the voltage providing module 703 includes:

[0138] The second acquisition unit is used to acquire the start time of providing excitation voltage to the hydraulic valve and the duration of providing excitation voltage;

[0139] The control unit is configured to stop supplying excitation voltage to the pressure reducing valve when the duration reaches the control activation duration.

[0140] In this embodiment of the application, the first acquisition module 701 includes:

[0141] The second acquisition unit is used to acquire the target pressure of the pressure reducing valve in the target hydraulic environment, wherein the target pressure is the pressure after the hydraulic valve reduces the pressure in the target hydraulic environment in a pre-set manner.

[0142] The target working time acquisition unit predicts the working time based on the target pressure and the hydraulic pressure difference to obtain the target working time.

[0143] It should be noted that the apparatus and method embodiments described in the device embodiments are based on the same inventive concept.

[0144] This application provides a pressure reducing valve control device, which includes a processor and a memory. The memory stores at least one instruction or at least one program. The processor loads and executes the instruction or program to implement the pressure reducing valve control method as described in the above method embodiments.

[0145] Furthermore, Figure 8 A schematic diagram of the hardware structure of an electronic device for implementing the pressure reducing valve control method provided in the embodiments of this application is shown. The electronic device can participate in or include the pressure reducing valve control device provided in the embodiments of this application. Figure 8 As shown, the electronic device 80 may include one or more processors 802 (shown as 802a, 802b, ..., 802n in the figure) (processor 802 may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.), a memory 804 for storing data, and a transmission device 806 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I / O interface), a network interface, a power supply, and / or a camera. Those skilled in the art will understand that... Figure 8 The structure shown is for illustrative purposes only and does not limit the structure of the electronic device described above. For example, the electronic device 80 may also include... Figure 8 The more or fewer components shown, or having the same Figure 8 The different configurations shown.

[0146] It should be noted that the aforementioned one or more processors 802 and / or other data processing circuits are generally referred to herein as "data processing circuits". These data processing circuits may be embodied, in whole or in part, in software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuits may be a single, independent processing module, or may be wholly or partially integrated into any other element within the electronic device 80 (or mobile device). As involved in the embodiments of this application, the data processing circuit serves as a processor control mechanism (e.g., selection of a variable resistor termination path connected to an interface).

[0147] The memory 804 can be used to store software programs and modules of application software, such as the program instructions / data storage device corresponding to the pressure reducing valve control method described in this embodiment. The processor 802 executes various functional applications and data processing by running the software programs and modules stored in the memory 804, thereby realizing the aforementioned pressure reducing valve control method. The memory 804 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 804 may further include memory remotely located relative to the processor 802, and these remote memories can be connected to the electronic device 80 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0148] The transmission device 806 is used to receive or send data via a network. Specific examples of the network described above may include a wireless network provided by the communication provider of the electronic device 80. In one example, the transmission device 806 includes a Network Interface Controller (NIC), which can connect to other network devices via a base station to communicate with the Internet. In one embodiment, the transmission device 806 may be a radio frequency (RF) module for wireless communication with the Internet.

[0149] The display can be, for example, a touchscreen liquid crystal display (LCD), which allows a user to interact with the user interface of an electronic device 80 (or a mobile device).

[0150] Embodiments of this application also provide a computer-readable storage medium, which can be disposed in an electronic device to store at least one instruction or at least one program related to implementing a pressure reducing valve control method in the method embodiment. The at least one instruction or the at least one program is loaded and executed by the processor to implement the pressure reducing valve control method provided in the above method embodiment.

[0151] Optionally, in this embodiment, the storage medium may be located at at least one of the multiple network servers in a computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0152] It should be noted that the order of the embodiments described above is merely for descriptive purposes and does not represent the superiority or inferiority of the embodiments. Furthermore, the above description focuses on specific embodiments of this application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps described in the claims can be performed in a different order than that shown in the embodiments and still achieve the desired results. Additionally, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired results. In some implementations, multitasking and parallel processing are also possible or may be advantageous.

[0153] According to one aspect of this application, a computer program product or computer program is provided, comprising computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various alternative implementations described above.

[0154] The various embodiments in this application are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the device and electronic device embodiments are basically similar to the method embodiments, so the descriptions are relatively simple; relevant parts can be referred to the descriptions of the method embodiments.

[0155] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0156] The above description is only a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A method for controlling a pressure reducing valve, characterized in that, The method includes: The pressure reducing valve is obtained by measuring the hydraulic differential, terminal voltage, and target operating time under a target hydraulic environment, as well as the target correspondence between the hydraulic differential, terminal voltage, target operating time, and control opening time; the target operating time is used to indicate the duration for which the pressure reducing valve can operate under the target hydraulic environment. The control activation duration is obtained by filtering out the control activation duration corresponding to the hydraulic differential, the terminal voltage, and the target working duration from the target correspondence; the control activation duration is the duration for which excitation voltage is provided to the pressure reducing valve. During the control activation period, an excitation voltage is provided to the pressure reducing valve; The acquisition of the target correspondence between the hydraulic differential, the terminal voltage, the target working duration, and the control activation duration includes: Obtain a first correspondence between the control activation duration and the target operating duration and the shutdown delay duration, and a second correspondence between the control activation duration and the hydraulic differential, the terminal voltage, and the shutdown delay duration; wherein, the shutdown delay duration is the duration from stopping the supply of excitation voltage to the pressure reducing valve to the pressure reducing valve stopping operation; The first correspondence and the second correspondence are decoupled to obtain the target correspondence.

2. The pressure reducing valve control method according to claim 1, characterized in that, The step of obtaining the second correspondence between the control activation duration and the hydraulic differential, the terminal voltage, and the activation delay duration includes: Obtain a first correspondence between the hydraulic pressure difference and the first current, a second correspondence between the terminal voltage and the control opening duration and the second current, and a third correspondence between the first current, the second current, and the closing delay duration; the first current is used to indicate the current when the pressure reducing valve actually stops working; the second current is used to indicate the current when the excitation voltage to the pressure reducing valve is stopped. The first correspondence, the second correspondence, and the third correspondence are decoupled to obtain the second correspondence.

3. The pressure reducing valve control method according to claim 1, characterized in that, The method further includes: The difference between the target working time and the control activation time is determined as the shutdown delay time.

4. The pressure reducing valve control method according to claim 1 or 3, characterized in that, Providing an excitation voltage to the pressure reducing valve during the control activation period includes: Obtain the start time of providing excitation voltage to the hydraulic valve and the duration of providing excitation voltage; If the duration reaches the control activation duration, the excitation voltage supplied to the pressure reducing valve is stopped.

5. The pressure reducing valve control method according to claim 1, characterized in that, The target operating time of the pressure reducing valve is obtained as follows: The target pressure of the pressure reducing valve in the target hydraulic environment is obtained, and the target pressure is the pressure after the hydraulic valve reduces the pressure in the target hydraulic environment in a pre-set manner. The target working time is obtained by predicting the working time based on the target pressure and the hydraulic pressure difference.

6. A pressure-reducing valve control device for executing the pressure-reducing valve control method according to any one of claims 1-5, characterized in that, The device includes: The first acquisition module is used to acquire the pressure reducing valve's hydraulic differential, terminal voltage, target operating time under the target hydraulic environment, and the target correspondence between the hydraulic differential, terminal voltage, target operating time and control opening time; the target operating time is used to indicate the duration for which the pressure reducing valve can operate under the target hydraulic environment. The first analysis module is used to filter out the control opening duration corresponding to the hydraulic differential, the terminal voltage and the target working time from the target correspondence, and obtain the control opening duration; the control opening duration is the duration of providing excitation voltage to the pressure reducing valve; A voltage supply module is used to provide an excitation voltage to the pressure reducing valve during the control activation period.

7. A pressure reducing valve control device, characterized in that, The device includes a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by the processor to implement the pressure reducing valve control method as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The storage medium stores at least one instruction or at least one program segment, which is loaded and executed by a processor according to any one of claims 1 to 5.

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