A hydraulic valve control method, system, storage medium and intelligent terminal

Abstract

The application relates to a hydraulic valve control method, system, storage medium and intelligent terminal, relates to the field of hydraulic components, and the method comprises the following steps: acquiring actual flow information of a valve port; judging whether a flow value corresponding to the actual flow information is consistent with a preset required flow value; if the flow value corresponding to the actual flow information is consistent with the required flow value, maintaining the original state of a valve core; if the flow value corresponding to the actual flow information is inconsistent with the required flow value, performing difference calculation according to the actual flow information and the required flow value to determine an adjustment compensation direction; and controlling the valve core to move along the adjustment compensation direction until the flow value corresponding to the actual flow information is consistent with the required flow value. The application has the effect of reducing the occurrence of inaccurate valve port flow of the hydraulic valve during use.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of hydraulic element technology, and particularly relates to a hydraulic valve control method, system, storage medium and intelligent terminal. BACKGROUND

[0002] The hydraulic valve is an automatic element operated by pressure oil, which is controlled by pressure oil of a pressure regulating valve, and is usually combined with an electromagnetic pressure regulating valve for use, and can be used for remote control of on-off of oil, gas and water pipeline systems of a hydropower station, and is often used for clamping, control, lubrication and other oil circuits.

[0003] In the process of using the current hydraulic valve, the operator sets the opening degree of the valve opening according to the actual required flow condition, so that the flow of the object circulating in the pipeline per unit time can meet the supply demand. However, in the process of using the hydraulic valve, as the use time increases, the degree of oil pollution will gradually increase, and the degree of wear of the valve core will gradually increase, so that the oil temperature circulating in the pipeline will increase, and once the oil temperature increases, the viscosity of the oil in the pipeline will decrease, so that the pressure difference of the valve port will decrease, and then the flow will be inaccurate. SUMMARY

[0004] In order to reduce the inaccurate flow of the valve port of the hydraulic valve in the process of use, the present application provides a hydraulic valve control method, system, storage medium and intelligent terminal.

[0005] In a first aspect, the present application provides a hydraulic valve control method, which adopts the following technical scheme:

[0006] A hydraulic valve control method comprises:

[0007] obtaining actual flow information of a valve port;

[0008] determining whether the flow value corresponding to the actual flow information is consistent with a preset required flow value;

[0009] if the flow value corresponding to the actual flow information is consistent with the required flow value, maintaining the original state of the valve core;

[0010] if the flow value corresponding to the actual flow information is inconsistent with the required flow value, performing difference calculation according to the actual flow information and the required flow value to determine an adjustment compensation direction;

[0011] controlling the valve core to move along the adjustment compensation direction until the flow value corresponding to the actual flow information is consistent with the required flow value.

[0012] By adopting the technical scheme, the flow condition of the valve port can be acquired first to determine whether the flow inaccuracy occurs when the hydraulic valve is in use, and when the flow inaccuracy occurs, the valve core is automatically moved to adjust the opening of the valve port, so as to realize the adjustment of the flow of the valve port and reduce the occurrence of the flow inaccuracy of the valve port in the use process of the hydraulic valve.

[0013] Optionally, the method for acquiring the actual flow information comprises:

[0014] acquiring the initial displacement information of the valve core, the inlet pressure information of the valve port and the outlet pressure information of the valve port;

[0015] determining the flow area according to the initial displacement information;

[0016] determining the differential pressure information by difference calculation according to the inlet pressure information and the outlet pressure information;

[0017] determining the actual flow information by calculation according to the flow area, the differential pressure information, the preset flow coefficient and the preset oil density.

[0018] By adopting the technical scheme, the flow area of the valve port can be determined according to the displacement condition of the valve core, and the oil condition can be determined according to the corresponding pressure condition of the valve port, so that the actual flow of the valve port under the flow area can be determined.

[0019] Optionally, the method for determining the flow area comprises:

[0020] establishing a corresponding isosceles triangle model according to the displacement amount corresponding to the initial displacement information and the preset valve port radius;

[0021] determining the height value of the base and the angle value of the base angle in the isosceles triangle model;

[0022] determining the triangular area information according to the height value of the base and the displacement amount corresponding to the initial displacement information, and determining the rhombus area information according to the triangular area information;

[0023] determining the sector angle value according to the angle value of the base angle, and determining the sector area information according to the sector angle value and the valve port radius;

[0024] determining the overlap area by calculation according to the sector area information and the rhombus area information;

[0025] determining the flow area by difference calculation according to the preset valve port area and the overlap area.

[0026] By adopting the technical scheme, the blocking amount of the valve core to the valve port can be determined according to the displacement condition of the valve core relative to the valve port, so that the area of the valve port that can actually supply oil flow can be determined.

[0027] Optionally, the method for calculating the actual flow information comprises:

[0028] Definition:

[0029] The flow area is A;

[0030] The pressure value corresponding to the differential pressure information is Δp;

[0031] The flow coefficient is C d ;

[0032] The oil density is ρ T ;

[0033] The flow value corresponding to the actual flow information is q;

[0034] Then

[0035] By using the above technical solution, the oil flow can be calculated more accurately according to the flow area and the oil pressure, so that the flow monitoring of the hydraulic valve is more accurate.

[0036] Optionally, the method for determining the oil density comprises:

[0037] Obtain the oil temperature information and the oil type information;

[0038] Determine the reference density of the oil type information at the preset reference temperature according to the preset type matching relationship;

[0039] Determine the correction coefficient corresponding to the oil type information according to the preset coefficient matching relationship;

[0040] Definition:

[0041] The temperature value corresponding to the oil temperature information is T;

[0042] The reference temperature is T0;

[0043] The reference density is

[0044] The correction coefficient is α;

[0045] Then

[0046] By using the above technical solution, the actual oil density of the current oil can be determined according to the difference of the oil type and the oil temperature, so that the subsequent oil flow calculation is more accurate.

[0047] Optionally, the method for obtaining the oil temperature information comprises:

[0048] Obtain the collection temperature information of the temperature collection device, wherein the temperature collection device is arranged at the valve port in a circumferential direction.

[0049] determining whether the temperature value corresponding to the collected temperature information is in a preset normal temperature range;

[0050] if the temperature value corresponding to the collected temperature information is in the normal temperature range, defining the temperature collection device as a valid device; if the temperature value corresponding to the collected temperature information is not in the normal temperature range, defining the temperature collection device as an invalid device; and determining whether there is an invalid device;

[0051] if there is no invalid device, performing mean value calculation according to the collected temperature information of each valid device to determine oil temperature information; if there is an invalid device, defining the temperature collection device adjacent to the invalid device as an adjacent device, and determining whether there is a remaining invalid device in the adjacent device of the invalid device;

[0052] if there is a remaining invalid device in the adjacent device of the invalid device, excluding the collected temperature information of the invalid device, and performing mean value calculation using the remaining collected temperature information to determine the oil temperature information;

[0053] if there is no remaining invalid device in the adjacent device of the invalid device, performing calculation according to the collected temperature information of the adjacent device to update the collected temperature information of the invalid device, and performing mean value calculation according to the updated collected temperature information and the collected temperature information of the remaining temperature collection device to determine the oil temperature information.

[0054] By using the above technical solution, the temperature value obtained by each temperature collection device can be determined to determine whether the temperature collection device is in a normal working state. When the temperature collection device is damaged or the collected temperature is abnormal, the temperature of the invalid device can be updated using the temperature collected by the adjacent normal device, so that the subsequently determined oil temperature is more accurate.

[0055] Optionally, the method of calculating to update the collected temperature information of the invalid device according to the collected temperature information of the adjacent device comprises:

[0056] defining two adjacent devices as a first device and a second device, and defining the collected temperature information of the first device as first temperature information and the collected temperature information of the second device as second temperature information;

[0057] obtaining invalid position information of the invalid device, first position information of the first device, and second position information of the second device;

[0058] performing calculation according to the first position information and the second position information to determine normal distance information, and performing calculation according to the first position information and the invalid position information to determine influence distance information;

[0059] calculating according to the first temperature information and the second temperature information to determine normal temperature difference information;

[0060] calculating according to the normal distance information, the normal temperature difference information and the influence distance information to determine influence temperature difference information, and calculating according to the influence temperature difference information and the first temperature information to update the collection temperature information of the invalid device.

[0061] By adopting the above technical solution, the temperature field has a gradual change characteristic, and the temperature change condition can be determined according to the distance between devices, so that the temperature value of the invalid temperature can be effectively updated by the temperatures of the adjacent two effective devices.

[0062] In the second aspect, the application provides a hydraulic valve control system, which adopts the following technical solution:

[0063] A hydraulic valve control system, comprising:

[0064] An acquisition module, configured to acquire actual flow information of a valve port;

[0065] A processing module, connected with the acquisition module and the judgment module, configured to store and process information;

[0066] A judgment module, connected with the acquisition module and the processing module, configured to judge information;

[0067] The judgment module judges whether the flow value corresponding to the actual flow information is consistent with a preset required flow value;

[0068] If the judgment module judges that the flow value corresponding to the actual flow information is consistent with the required flow value, the processing module controls the valve core to maintain the original state;

[0069] If the judgment module judges that the flow value corresponding to the actual flow information is inconsistent with the required flow value, the processing module performs difference calculation according to the actual flow information and the required flow value to determine an adjustment compensation direction;

[0070] The processing module controls the valve core to move along the adjustment compensation direction until the flow value corresponding to the actual flow information is consistent with the required flow value.

[0071] By adopting the above technical solution, the acquisition module can first acquire the flow condition of the valve port, so that the judgment module can judge whether the flow inaccuracy occurs when the hydraulic valve is used. When the judgment module judges that the flow inaccuracy occurs, the processing module controls the valve core to automatically move to adjust the valve port opening degree, so as to realize the adjustment of the valve port flow, thereby reducing the occurrence of the valve port flow inaccuracy of the hydraulic valve in the use process.

[0072] In the third aspect, the application provides an intelligent terminal, which adopts the following technical solution:

[0073] An intelligent terminal comprises a memory and a processor, and the memory stores a computer program capable of being loaded by the processor and executing any of the above hydraulic valve control methods.

[0074] By using the above technical solution, the flow rate of the valve port can be acquired first to determine whether the flow rate of the hydraulic valve is inaccurate during use, and the spool is automatically moved to adjust the opening degree of the valve port when the flow rate is inaccurate, so as to adjust the flow rate of the valve port and reduce the occurrence of inaccurate flow rate of the valve port during use of the hydraulic valve.

[0075] In a fourth aspect, the application provides a computer storage medium capable of storing a corresponding program, having the characteristics of reducing the occurrence of inaccurate flow rate of the valve port during use of the hydraulic valve, and adopting the following technical solution:

[0076] A computer readable storage medium stores a computer program capable of being loaded by a processor and executing any of the above hydraulic valve control methods.

[0077] By using the above technical solution, the computer program of the hydraulic valve control method is stored in the storage medium, the flow rate of the valve port can be acquired first to determine whether the flow rate of the hydraulic valve is inaccurate during use, and the spool is automatically moved to adjust the opening degree of the valve port when the flow rate is inaccurate, so as to adjust the flow rate of the valve port and reduce the occurrence of inaccurate flow rate of the valve port during use of the hydraulic valve.

[0078] In summary, the application has at least one of the following beneficial technical effects:

[0079] 1. The flow rate of the valve port can be monitored in real time during use of the hydraulic valve, and the position of the spool can be automatically adjusted to adjust the flow rate of the valve port when the flow rate of the valve port changes, so as to determine the flow rate of the hydraulic valve during use;

[0080] 2. The oil condition can be determined more accurately by monitoring the pressure of the valve port and the temperature of the oil, so that the actual flow rate of the valve port can be determined more accurately;

[0081] 3. When the temperature acquisition device is damaged, the value collected by the damaged temperature acquisition device can be updated by the adjacent undamaged temperature acquisition device, so that the temperature of the oil is determined more accurately. BRIEF DESCRIPTION OF DRAWINGS

[0082] Figure 1 is a flowchart of the hydraulic valve control method.

[0083] Figure 2 is a flowchart of the actual flow rate acquisition method.

[0084] Figure 3is a flowchart of a flow area calculation method.

[0085] Figure 4 is a schematic diagram of a valve core blocking a valve port.

[0086] Figure 5 is a flowchart of an oil temperature information determination method.

[0087] Figure 6 is a flowchart of an invalid device temperature collection updating method.

[0088] Figure 7 is a module flowchart of a hydraulic valve control method. DETAILED DESCRIPTION

[0089] In order to make the purposes, technical solutions and advantages of the present application clearer, the following further describes the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. Figures 1-7 The present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0090] The present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0091] The hydraulic valve control method disclosed in the embodiments of the present application acquires the valve port pressure and the oil temperature, analyzes the valve core displacement, determines the actual flow rate of the valve port, judges the actual flow rate, and determines whether the flow rate meets the set requirements. When the flow rate does not meet the set requirements, the valve core can automatically move to adjust the flow rate of the valve port, thereby reducing the inaccuracy of the flow rate of the hydraulic valve during use.

[0092] Referring to Figure 1 , the method flowchart of the hydraulic valve control method includes the following steps:

[0093] Step S100: Acquire actual flow rate information of the valve port.

[0094] The flow rate value corresponding to the actual flow rate information is the flow rate value of the oil flowing through the hydraulic valve port in a unit time period, which is set by the worker according to the actual situation. The acquisition method of the flow rate can be obtained by installing a flowmeter on the valve port, or can be calculated and obtained by the remaining numerical value, which is set by the worker according to the actual situation, and is not described in detail.

[0095] Step S101: Determine whether the flow rate value corresponding to the actual flow rate information is consistent with the preset required flow rate value.

[0096] The required flow rate value is the flow rate value of the oil required by the worker to flow through the valve port in a unit time period. The purpose of the determination is to know whether the flow rate of the current hydraulic valve meets the requirements.

[0097] Step S1011: If the flow value corresponding to the actual flow information is consistent with the demand flow value, maintain the original state of the valve core.

[0098] When the flow value corresponding to the actual flow information is consistent with the demand flow value, it means that the current use of the hydraulic valve meets the requirements of the staff, at this time the valve core is maintained in the original state to fix the opening degree of the valve port, which is convenient for the normal use of the hydraulic valve.

[0099] Step S1012: If the flow value corresponding to the actual flow information is inconsistent with the demand flow value, difference calculation is performed according to the actual flow information and the demand flow value to determine the adjustment compensation direction.

[0100] When the flow value corresponding to the actual flow information is inconsistent with the demand flow value, it means that the current use of the hydraulic valve cannot meet the requirements of the staff, and needs to be adjusted; the adjustment compensation direction is the direction in which the valve core moves to make the flow value corresponding to the actual flow information change towards the demand flow value, and the difference between the two can be calculated to know the size of the two, so that the corresponding direction can be determined. The relationship between the direction and the difference can be set by the staff in advance, and will not be described here.

[0101] Step S102: Control the valve core to move in the adjustment compensation direction until the flow value corresponding to the actual flow information is consistent with the demand flow value.

[0102] Controlling the valve core to move in the adjustment compensation direction makes the actual flow of the valve port close to the demand flow value, so that the flow of the valve port of the hydraulic valve can meet the demand during the test, thereby reducing the inaccuracy of the flow of the valve port of the hydraulic valve during the test.

[0103] Reference Figure 2 The method for obtaining the actual flow information comprises:

[0104] Step S200: Obtain the initial displacement information of the valve core, the inlet pressure information of the valve port, and the outlet pressure information.

[0105] The displacement amount corresponding to the initial displacement information is the displacement amount of the valve core relative to the preset origin, which can be determined by installing a displacement sensor on the valve core. In the present application, the preset origin is the center point of the valve port. The pressure value corresponding to the inlet pressure information is the pressure value of the inlet end of the valve port of the hydraulic valve, and the pressure value corresponding to the outlet pressure information is the pressure value of the output end of the valve port of the hydraulic valve. Both of them can be obtained by installing a pressure sensor on the valve port.

[0106] Step S201: Determine the flow area according to the initial displacement information.

[0107] The flow area is an area through which oil can flow at the valve port. The size of the valve port that is blocked can be determined according to the displacement corresponding to the initial displacement information, so that the flow area can be determined. The corresponding relationship between the two can be determined by the staff through prior testing and the establishment of a corresponding database.

[0108] Step S202: difference calculation is performed according to the inlet pressure information and the outlet pressure information to determine difference pressure information.

[0109] The pressure value corresponding to the difference pressure information is the pressure difference between the inlet end and the outlet end of the valve port. The pressure value corresponding to the difference pressure information is determined by subtracting the pressure value corresponding to the outlet pressure information from the pressure value corresponding to the inlet pressure information.

[0110] Step S203: calculation is performed according to the flow area, the difference pressure information, a preset flow coefficient, and a preset oil density to determine actual flow information.

[0111] The flow coefficient is a coefficient required when measuring the flow of oil. Different oil numbers and valve port structures can cause the flow coefficient to change. The flow coefficient is determined by the staff in advance. The oil density is the density of the oil in the hydraulic valve, which is related to the oil number and the oil temperature. The staff needs to determine it in advance. The calculation formula of the actual flow information is wherein the flow area is A, the pressure value corresponding to the difference pressure information is Δp, the flow coefficient is C d , the oil density is ρ T , and the flow value corresponding to the actual flow information is q.

[0112] The determination method of the oil density is as follows: Step S204: obtain oil temperature information and oil type information; the temperature value corresponding to the oil temperature information is the temperature value of the oil flowing in the hydraulic valve, which can be obtained by installing a temperature sensor at the valve port. The type value corresponding to the oil type information is the type of the oil used in the hydraulic valve, which can be determined by obtaining the oil information when the hydraulic valve is used. Step S205: determine the reference density of the oil type information at the preset reference temperature according to the preset type matching relationship; the reference temperature is the initial temperature set by the staff, the reference density is the oil density value of the oil corresponding to the oil type information at the reference temperature, and the relationship between the three is obtained by the staff through prior testing, and the type matching relationship is established according to the corresponding relationship. Step S206: determine the correction coefficient corresponding to the oil type information according to the preset coefficient matching relationship; the correction coefficient is a coefficient required when determining the density of the oil in a stable state. Different oil types have different correction coefficients. The relationship between the two is determined by the staff and the coefficient matching relationship is established for subsequent numerical query. In summary, the calculation formula of the oil density is wherein the temperature value corresponding to the oil temperature information is T, the reference temperature is T0, the reference density is The correction coefficient is a.

[0113] Referring to Figure 3 , the method for determining the flow area comprises:

[0114] Step S300: establishing a corresponding isosceles triangle model according to the displacement amount corresponding to the initial displacement information and the preset valve port radius.

[0115] Referring to Figure 4 , the valve port radius is the radius length at the valve port in the hydraulic valve, and the isosceles triangle model is an isosceles triangle with the displacement length amount corresponding to the initial displacement information as the base, and the two valve port radius length lines as the two waists.

[0116] Step S301: determining the base height value and the base angle value in the isosceles triangle model.

[0117] The base height value is the length value of the height at the base in the isosceles triangle model, and the base angle value is the base angle value in the isosceles triangle, which can be determined by the base length and the waist length in the isosceles triangle.

[0118] Step S302: determining the triangle area information according to the base height value and the displacement amount corresponding to the initial displacement information, and determining the rhombus area information according to the triangle area information.

[0119] The area value corresponding to the triangle area information is the area value of the isosceles triangle model, and the calculation formula is wherein x is the displacement amount corresponding to the initial displacement information, h is the base height value, and S1 is the area value corresponding to the triangle area information; the area value corresponding to the rhombus area information is the area value of the rhombus composed of four valve port radii, and referring to Figure 4 , the calculation formula is S2 = 2S1, wherein S2 is the area value corresponding to the rhombus area information.

[0120] Step S303: determining the sector angle value according to the base angle value, and calculating the sector area information according to the sector angle value and the valve port radius.

[0121] Referring to Figure 4 , the sector included angle value is the arc length angle value of the sector composed of the two radii of the center of the valve core and the valve core arc length, which is twice the base angle value, and the area corresponding to the sector area information is the area of the sector, and the corresponding calculation formula is well known to those skilled in the art and is not described herein.

[0122] Step S304: calculating the overlap area according to the sector area information and the rhombus area information.

[0123] The overlapping area is the area of the overlap between the two sectors, which is determined by subtracting the area value corresponding to the diamond area information from the area value corresponding to the two sector area information.

[0124] Step S305: Difference calculation is performed according to the preset valve port area and the overlapping area to determine the flow area.

[0125] The valve port area is the opening area at the valve port of the hydraulic valve, and the flow area, which is the area actually available for the oil flow, can be determined by subtracting the overlapping area from the valve port area.

[0126] Referring to Figure 5 The method for obtaining the oil temperature information includes the following steps.

[0127] Step S400: Obtain the collection temperature information of the temperature collection device, which is circumferentially and intervaliy arranged at the valve port.

[0128] The temperature collection device is a device arranged at the valve port and capable of collecting and obtaining the temperature, such as a temperature sensor. In order to improve the accuracy of determining the oil temperature, a plurality of temperature collection devices are circumferentially and intervaliy arranged at the valve port, and the temperature value corresponding to the collection temperature information is the temperature value obtained by the temperature collection device.

[0129] Step S401: Determine whether the temperature value corresponding to the collection temperature information is in the preset normal temperature range.

[0130] The normal temperature range is the range of the temperature obtained by the temperature collection device when the temperature is normal, i.e. the range of the temperature that can be obtained by the temperature collection device when it is not damaged or abnormal.

[0131] Step S4011: If the temperature value corresponding to the collection temperature information is in the normal temperature range, the temperature collection device is defined as an effective device.

[0132] When the temperature value corresponding to the collection temperature information is in the normal temperature range, it indicates that the temperature obtained by the device can correctly reflect the oil temperature at the position, and the device is defined as an effective device for identification, so as to distinguish different devices and facilitate subsequent analysis.

[0133] Step S4012: If the temperature value corresponding to the collection temperature information is not in the normal temperature range, the temperature collection device is defined as an ineffective device.

[0134] When the temperature value corresponding to the collected temperature information is not in the normal temperature range, it indicates that the temperature acquired by the device cannot correctly reflect the oil temperature at the location, that is, the device is damaged or the temperature detection is abnormal, and the device is defined as an invalid device for identification, so as to distinguish different devices and facilitate subsequent analysis.

[0135] Step S402: determining whether there is an invalid device.

[0136] The purpose of the determination is to know whether all temperature collection devices can collect accurate temperature values.

[0137] Step S4021: if there is no invalid device, performing mean value calculation on the collected temperature information of each valid device to determine the oil temperature information.

[0138] When there is no invalid device, it indicates that all temperature collection devices are in normal use, and mean value calculation based on the collected temperature can determine the accurate oil temperature, thereby improving the accuracy of oil temperature determination.

[0139] Step S4022: if there is an invalid device, defining the temperature collection devices adjacent to the invalid device as adjacent devices, and determining whether there are other invalid devices in the adjacent devices of the invalid device.

[0140] When there is an invalid device, it indicates that the device cannot collect temperature values or the collected temperature values are inaccurate, and further analysis is needed; at this time, the two devices adjacent to the invalid device on the valve port circumference are defined as adjacent devices for identification, so as to facilitate subsequent further analysis, and the purpose of the determination is to know whether the two adjacent devices cannot be used normally.

[0141] Step S40221: if there are other invalid devices in the adjacent devices of the invalid device, excluding the collected temperature information of the invalid device, and performing mean value calculation on the remaining collected temperature information to determine the oil temperature information.

[0142] When there are other invalid devices in the adjacent devices of the invalid device, it indicates that the temperature value at the location of the device that cannot be used normally cannot be derived from the adjacent devices, and only the temperature values acquired by the remaining devices that can be used normally can be used for mean value calculation to determine the oil temperature.

[0143] Step S40222: if there are no other invalid devices in the adjacent devices of the invalid device, performing calculation on the collected temperature information of the adjacent devices to update the collected temperature information of the invalid device, and performing mean value calculation on the updated collected temperature information and the collected temperature information of the remaining temperature collection devices to determine the oil temperature information.

[0144] When there is no remaining invalid device in the adjacent device of the invalid device, it is indicated that the temperature value of the position of the current invalid device can be approximately determined by the adjacent valid device and the temperature field gradual change rule, and the temperature value of the invalid device is updated by using the temperature value of the adjacent device, so that subsequent mean value calculation can be performed by using the updated temperature value to determine a more accurate oil temperature.

[0145] Referring to Figure 6 The method of updating the collection temperature information of the invalid device according to the collection temperature information of the adjacent device includes:

[0146] Step S500: Define two adjacent devices as a first device and a second device respectively, and define the collection temperature information of the first device as first temperature information and the collection temperature information of the second device as second temperature information.

[0147] The first device and the second device are defined to distinguish the two adjacent devices, which is convenient for subsequent analysis, and the first temperature information and the second temperature information are defined to distinguish the temperatures of the two devices, which is convenient for subsequent calculation and analysis.

[0148] Step S501: Obtain invalid position information of the invalid device, first position information of the first device, and second position information of the second device.

[0149] The position corresponding to the invalid position information is the position of the invalid device on the valve port circumference, the position corresponding to the first position information is the position of the first device on the valve port circumference, and the position corresponding to the second position information is the position of the second device on the valve port circumference.

[0150] Step S502: Calculate to determine normal distance information according to the first position information and the second position information, and calculate to determine influence distance information according to the first position information and the invalid position information.

[0151] The distance value corresponding to the normal distance information is the minimum distance value of the first device and the second device on the valve port circumference, and the distance value corresponding to the influence distance information is the minimum distance value of the first device and the invalid device on the valve port circumference, both of which can be determined by the positions of the corresponding devices.

[0152] Step S503: Calculate to determine normal temperature difference information according to the first temperature information and the second temperature information.

[0153] The temperature difference value corresponding to the normal temperature difference information is the difference between the first temperature and the second temperature, which is determined by subtracting the second temperature from the first temperature.

[0154] Step S504: calculating to determine the influence temperature difference information according to the normal distance information, the normal temperature difference information and the influence distance information, and calculating to update the collection temperature information of the invalid device according to the influence temperature difference information and the first temperature information.

[0155] The temperature field changes gradually, so the temperature and distance change in a nearly proportional manner, and the normal distance and the influence distance can be used to determine the change ratio of the two, so as to determine the temperature difference between the position of the first device and the position of the invalid device, that is, the influence temperature difference, and the influence temperature difference and the first temperature can be used to calculate the sum to determine the approximate temperature value of the position of the invalid device, so as to update the collection temperature information of the invalid device.

[0156] Reference Figure 7 Based on the same inventive concept, the embodiment of the present application provides a hydraulic valve control system, comprising:

[0157] An acquisition module is configured to acquire actual flow information of a valve port.

[0158] A processing module is connected with the acquisition module and the judgment module, and is configured to store and process information.

[0159] A judgment module is connected with the acquisition module and the processing module, and is configured to judge information.

[0160] The judgment module is configured to judge whether the flow value corresponding to the actual flow information is consistent with a preset required flow value.

[0161] If the judgment module judges that the flow value corresponding to the actual flow information is consistent with the required flow value, the processing module controls the valve core to maintain the original state.

[0162] If the judgment module judges that the flow value corresponding to the actual flow information is inconsistent with the required flow value, the processing module performs difference calculation according to the actual flow information and the required flow value to determine an adjustment compensation direction.

[0163] The processing module controls the valve core to move along the adjustment compensation direction until the flow value corresponding to the actual flow information is consistent with the required flow value.

[0164] A through-flow area determination module is configured to determine the area actually available for oil flow in the valve port according to the displacement of the valve core, so that the subsequent actual flow calculation of the valve port is more accurate.

[0165] An actual flow calculation module is configured to more accurately calculate the actual flow according to the through-flow area and the valve port pressure.

[0166] An oil liquid density determination module determines a more accurate oil liquid density according to an oil liquid temperature condition to further adjust accuracy of subsequent actual flow calculation.

[0167] An oil liquid temperature analysis module analyzes temperatures of multiple temperature acquisition devices to determine temperature acquisition device conditions, and when some temperature acquisition devices cannot be normally used, temperature values of the temperature acquisition devices that cannot be normally used are updated and corrected by using temperature values of adjacent temperature acquisition devices that can be normally used.

[0168] A temperature update determination module determines temperature change conditions according to distances between temperature acquisition devices, so that the updated temperature values are more accurate.

[0169] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0170] The embodiment of the application provides a computer readable storage medium, which stores a computer program capable of being loaded by a processor and executing a hydraulic valve control method.

[0171] The computer storage medium includes, for example, a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0172] Based on the same inventive concept, the embodiment of the application provides an intelligent terminal, which includes a memory and a processor, and the memory stores a computer program capable of being loaded by the processor and executing a hydraulic valve control method.

[0173] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

[0174] The above are only preferred embodiments of the present application, not intended to limit the protection scope of the present application, any feature disclosed in the specification (including the abstract and the drawings) can be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, each feature is only an example of a series of equivalent or similar features, unless specifically stated otherwise.

Claims

1. A hydraulic valve control method, characterized by, The method comprises the following steps: acquiring actual flow information of the valve port; judging whether the flow value corresponding to the actual flow information is consistent with a preset required flow value; if the flow value corresponding to the actual flow information is consistent with the required flow value, maintaining the original state of the valve core; if the flow value corresponding to the actual flow information is inconsistent with the required flow value, performing difference calculation according to the actual flow information and the required flow value to determine an adjustment compensation direction; controlling the valve core to move along the adjustment compensation direction until the flow value corresponding to the actual flow information is consistent with the required flow value; the method for acquiring the actual flow information comprises the following steps: acquiring initial displacement information of the valve core, inlet pressure information and outlet pressure information of the valve port; determining a flow area according to the initial displacement information; performing difference calculation according to the inlet pressure information and the outlet pressure information to determine difference pressure information; performing calculation according to the flow area, the difference pressure information, a preset flow coefficient and a preset oil density to determine the actual flow information; the method for determining the flow area comprises the following steps: establishing a corresponding isosceles triangle model according to a displacement amount corresponding to the initial displacement information and a preset valve port radius; determining a base height value and a base angle value in the isosceles triangle model; determining triangle area information according to the base height value and the displacement amount corresponding to the initial displacement information, and determining rhombus area information according to the triangle area information; determining a sector angle value according to the base angle value, and performing calculation according to the sector angle value and the valve port radius to determine sector area information; performing calculation according to the sector area information and the rhombus area information to determine an overlapping area; performing difference calculation according to a preset valve port area and the overlapping area to determine the flow area.

2. The hydraulic valve control method according to claim 1, characterized by, the method for calculating the actual flow information comprises the following steps:

3. The hydraulic valve control method of claim 2, wherein the method for determining the oil density comprises the following steps: acquiring oil temperature information and oil type information; determining a reference density of the oil type information at a preset reference temperature according to a preset type matching relationship; determining a correction coefficient corresponding to the oil type information according to a preset coefficient matching relationship; 4. The hydraulic valve control method of claim 3, wherein the method for acquiring the oil temperature information comprises the following steps: acquiring collection temperature information of a temperature collection device, wherein the temperature collection device is arranged at the valve port in a circumferential direction; judging whether a temperature value corresponding to the collection temperature information is in a preset normal temperature range; if the temperature value corresponding to the collection temperature information is in the normal temperature range, defining the temperature collection device as a valid device; if the temperature value corresponding to the collection temperature information is not in the normal temperature range, defining the temperature collection device as an invalid device; judging whether there is an invalid device; if there is no invalid device, performing mean value calculation according to collection temperature information of each valid device to determine the oil temperature information; if there is an invalid device, defining a temperature collection device adjacent to the invalid device as an adjacent device, and judging whether there is a remaining invalid device in the adjacent devices of the invalid device; if there is a remaining invalid device in the adjacent devices of the invalid device, excluding the collection temperature information of the invalid device, and performing mean value calculation according to the remaining collection temperature information to determine the oil temperature information. If there is no other invalid device in the neighboring devices of the invalid device, the collection temperature information of the invalid device is updated according to the collection temperature information of the neighboring devices, and the oil temperature information is determined by mean value calculation according to the updated collection temperature information and the collection temperature information of the other temperature collection devices.

5. The hydraulic valve control method according to claim 4, characterized by, The method for updating the collection temperature information of the invalid device according to the collection temperature information of the neighboring devices comprises: two neighboring devices are defined as a first device and a second device respectively, and the collection temperature information of the first device is defined as first temperature information, and the collection temperature information of the second device is defined as second temperature information; the invalid position information of the invalid device, the first position information of the first device and the second position information of the second device are obtained; normal distance information is determined according to the first position information and the second position information, and influence distance information is determined according to the first position information and the invalid position information; normal temperature difference information is determined according to the first temperature information and the second temperature information; the influence temperature difference information is determined according to the normal distance information, the normal temperature difference information and the influence distance information, and the collection temperature information of the invalid device is updated according to the influence temperature difference information and the first temperature information.

6. A hydraulic valve control system characterized by, comprises: an acquisition module, configured to acquire actual flow information of a valve port; the acquisition method of the actual flow information comprises: acquiring initial displacement information of a valve core, inlet pressure information and outlet pressure information of the valve port; determining a flow area according to the initial displacement information; determining difference pressure information by difference calculation according to the inlet pressure information and the outlet pressure information; and determining the actual flow information according to the flow area, the difference pressure information, a preset flow coefficient and a preset oil density; the determination method of the flow area comprises: establishing a corresponding isosceles triangle model according to a displacement corresponding to the initial displacement information and a preset valve port radius; determining a base height value and a base angle value in the isosceles triangle model; determining triangle area information according to the base height value and the displacement corresponding to the initial displacement information, and determining rhombus area information according to the triangle area information; determining a sector angle value according to the base angle value, and determining sector area information according to the sector angle value and the valve port radius; determining an overlapping area according to the sector area information and the rhombus area information; and determining the flow area by difference calculation according to a preset valve port area and the overlapping area; a processing module, connected with the acquisition module and the judgment module, configured to store and process information; a judgment module, connected with the acquisition module and the processing module, configured to judge information; the judgment module judges whether a flow value corresponding to the actual flow information is consistent with a preset required flow value; if the judgment module judges that the flow value corresponding to the actual flow information is consistent with the required flow value, the processing module controls the valve core to maintain the original state; if the judgment module judges that the flow value corresponding to the actual flow information is inconsistent with the required flow value, the processing module determines an adjustment compensation direction by difference calculation according to the actual flow information and the required flow value; The processing module controls the spool to move in the adjustment compensation direction until the actual flow information corresponds to the required flow value.

7. A smart terminal, characterized by A memory and a processor are included, the memory storing a computer program capable of being loaded and executed by the processor to perform the method of any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, A memory and a processor are included, the memory storing a computer program capable of being loaded and executed by the processor to perform the method of any one of claims 1 to 5. A memory and a processor are included, the memory storing a computer program capable of being loaded and executed by the processor to perform the method of any one of claims 1 to 5.

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