Hydraulic pump pressure regulation method, device, electronic equipment and storage medium

Abstract

The present disclosure proposes a pressure regulation method, device, electronic device and storage medium for a hydraulic pump, wherein the pressure regulation method for a hydraulic pump comprises: obtaining the flow value of the hydraulic pump; obtaining the target compression amount of a pressure regulating valve based on the expected pressure value and flow value of the hydraulic pump, the pressure regulating valve being used to adjust the pressure of the hydraulic pump; adjusting the pressure regulating valve based on the target compression amount so that the difference between the actual pressure value and the expected pressure value of the hydraulic pump is within a preset pressure difference range. The present disclosure can accurately obtain the compression amount of the pressure regulating valve when the hydraulic pump reaches the expected pressure value at different flow rates, thereby accurately adjusting the pressure regulating valve, and further realizing accurate regulation of the pressure of the hydraulic pump, thereby improving the accuracy and speed of the pressure regulation of the hydraulic pump and avoiding overshoot.

Description

Technical Field

[0001] The present disclosure relates to the technical field of hydraulic systems, and in particular to a pressure regulation method, device, electronic equipment and storage medium for a hydraulic pump. Background Art

[0002] With the continuous advancement of technology, the nominal pressure of various types of hydraulic pumps is currently developing towards high pressure. After the hydraulic pump leaves the factory, it is usually necessary to test the factory performance of the hydraulic pump to ensure the quality of the hydraulic pump.

[0003] In the related art, when testing the performance of the hydraulic pump, the compression of the pressure regulating valve is adjusted by adjusting the expansion and contraction of the stepper motor, thereby adjusting the pressure of the hydraulic pump so that the pressure of the hydraulic pump meets the test requirements. However, this solution cannot accurately obtain the adjustment amount during the process of adjusting the pressure of the hydraulic pump. Since the feedback adjustment method is adopted, it is necessary to detect in real time whether the pressure of the hydraulic pump meets the test requirements, so as to make fine adjustments when the pressure of the hydraulic pump does not meet the test requirements until the pressure of the hydraulic pump meets the test requirements. Since this solution requires multiple feedback adjustments, the adjustment time is long, the adjustment accuracy is low, and overshoot is prone to occur. Summary of the invention

[0004] The present disclosure provides a method, a device, an electronic device and a storage medium for regulating the pressure of a hydraulic pump.

[0005] The first aspect of the present disclosure provides a method for regulating the pressure of a hydraulic pump, comprising: obtaining a flow value of the hydraulic pump; obtaining a target compression amount of a pressure regulating valve based on an expected pressure value of the hydraulic pump and the flow value, the pressure regulating valve being used to adjust the pressure of the hydraulic pump; and adjusting the pressure regulating valve based on the target compression amount so that the difference between the actual pressure value of the hydraulic pump and the expected pressure value is within a preset pressure difference range.

[0006] The pressure regulation method of the hydraulic pump of the embodiment of the present disclosure obtains the flow value of the hydraulic pump, obtains the target compression amount of the pressure regulating valve based on the expected pressure value and flow value of the hydraulic pump, and the pressure regulating valve is used to adjust the pressure of the hydraulic pump. Based on the target compression amount, the pressure regulating valve is adjusted so that the difference between the actual pressure value and the expected pressure value of the hydraulic pump is within a preset pressure difference range. In the embodiment of the present disclosure, the target compression amount of the pressure regulating valve is obtained based on the expected pressure value and flow value of the hydraulic pump, and the compression amount of the pressure regulating valve when the hydraulic pump reaches the expected pressure value at different flow rates can be accurately obtained, so as to accurately adjust the pressure regulating valve, thereby realizing accurate regulation of the pressure of the hydraulic pump, thereby improving the accuracy and speed of the pressure regulation of the hydraulic pump and avoiding overshoot.

[0007] In one embodiment of the present disclosure, the target compression of the pressure regulating valve is obtained based on the expected pressure value and the flow value of the hydraulic pump, including: inputting the expected pressure value and the flow value into a pre-trained target neural network to output the target compression of the pressure regulating valve.

[0008] In one embodiment of the present disclosure, the training process of the target neural network includes: collecting sample expected pressure values ​​and sample flow values ​​of the hydraulic pump; inputting the sample expected pressure values ​​and the sample flow values ​​into the initial neural network to output the predicted compression of the pressure regulating valve; obtaining the loss value based on the predicted compression and the label value; and adjusting the model parameters of the initial neural network based on the loss value to obtain the target neural network.

[0009] In one embodiment of the present disclosure, the pressure regulating valve includes a pressure regulating telescopic member, and obtaining the target compression amount of the pressure regulating valve includes: based on the expected pressure value of the hydraulic pump and the flow value, obtaining the target telescopic amount of the pressure regulating telescopic member in the pressure regulating valve as the target compression amount.

[0010] In one embodiment of the present disclosure, the adjusting of the pressure regulating valve based on the target compression amount includes: obtaining the current expansion amount of the pressure regulating telescopic component in the pressure regulating valve; calculating the differential expansion amount between the current expansion amount of the pressure regulating telescopic component and the target expansion amount; and adjusting the pressure regulating telescopic component according to the differential expansion amount.

[0011] In one embodiment of the present disclosure, after adjusting the pressure regulating valve based on the target compression amount, the method further comprises: measuring the compression amount of the pressure regulating valve after adjustment by a rangefinder; and re-adjusting the pressure regulating valve in response to the compression amount of the pressure regulating valve after adjustment not reaching the target compression amount.

[0012] The second aspect embodiment of the present disclosure proposes a pressure regulating device for a hydraulic pump, comprising: a first acquisition module, used to acquire the flow value of the hydraulic pump; a second acquisition module, used to acquire a target compression amount of a pressure regulating valve based on an expected pressure value of the hydraulic pump and the flow value, wherein the pressure regulating valve is used to adjust the pressure of the hydraulic pump; and an adjustment module, used to adjust the pressure regulating valve based on the target compression amount so that the difference between the actual pressure value of the hydraulic pump and the expected pressure value is within a preset pressure difference range.

[0013] An embodiment of the third aspect of the present disclosure proposes an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the pressure regulation method of a hydraulic pump as described in the embodiment of the first aspect above.

[0014] The fourth aspect of the present disclosure provides a computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to execute the pressure regulation method for a hydraulic pump as described in the first aspect of the present disclosure.

[0015] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 A schematic flow chart of a method for regulating the pressure of a hydraulic pump provided in one embodiment of the present disclosure;

[0018] Figure 2 It is the pressure curve diagram of the hydraulic pump;

[0019] Figure 3 A schematic flow chart of a method for regulating the pressure of a hydraulic pump provided in another embodiment of the present disclosure;

[0020] Figure 4 A schematic flow chart of a method for regulating the pressure of a hydraulic pump provided in another embodiment of the present disclosure;

[0021] Figure 5 A schematic flow chart of a method for regulating the pressure of a hydraulic pump provided in another embodiment of the present disclosure;

[0022] Figure 6 It is the structural diagram of the hydraulic pump test system;

[0023] Figure 7 A schematic structural diagram of a pressure regulating device for a hydraulic pump provided in another embodiment of the present disclosure;

[0024] Figure 8 A block diagram of an electronic device provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure, and should not be construed as limiting the present disclosure.

[0026] The following describes a method, device, electronic device, and storage medium for regulating the pressure of a hydraulic pump according to an embodiment of the present disclosure with reference to the accompanying drawings.

[0027] Figure 1 The following is a flow chart of a method for regulating the pressure of a hydraulic pump according to an embodiment of the present disclosure. Figure 1 As shown, the method comprises the following steps:

[0028] S101, obtaining the flow value of the hydraulic pump.

[0029] It should be noted that the executor of the pressure regulating method of the hydraulic pump in the embodiment of the present disclosure is a pressure regulating device of the hydraulic pump, which can be implemented by software and / or hardware. The pressure regulating device of the hydraulic pump can be configured in an electronic device, which may include but is not limited to a terminal, a server, etc.

[0030] In some implementations, a flow sensor may be installed at the outlet of the hydraulic pump to measure the flow value of the hydraulic pump through the flow sensor.

[0031] S102, based on the expected pressure value and flow value of the hydraulic pump, obtaining a target compression amount of a pressure regulating valve, where the pressure regulating valve is used to adjust the pressure of the hydraulic pump.

[0032] It should be noted that in the disclosed embodiment, the pressure of the hydraulic pump is the outlet pressure of the hydraulic pump. In the hydraulic system, the oil outlet of the hydraulic pump is connected to the oil inlet of the regulating valve, so that the oil in the hydraulic pump flows into the pressure regulating valve, and the outlet pressure of the hydraulic pump is adjusted by the pressure regulating valve.

[0033] Among them, the expected pressure value is the preset pressure value that the hydraulic pump needs to reach, and the target compression amount is the compression amount of the pressure regulating valve when the pressure of the hydraulic pump reaches the expected pressure value, wherein the compression amount of the pressure regulating valve is determined by the expansion and contraction amount of the pressure regulating telescopic parts (such as pilot springs, telescopic rods, etc.) in the pressure regulating valve.

[0034] Different types of hydraulic pumps have different displacement indicators. For example, the minimum flow rate of an emulsion pump is 125L / min and the maximum flow rate is 1200L / min. Figure 2When the compression volume of the pressure regulating valve remains unchanged, the pressure value of the hydraulic pump increases with the increase of the flow value of the hydraulic pump. Therefore, when the compression volume of the pressure regulating valve and the pressure value of the hydraulic pump are determined, the pressure of the hydraulic pump can be uniquely determined, that is, there is a certain quantitative relationship between the compression volume of the pressure regulating valve, the pressure value of the hydraulic pump and the flow value of the hydraulic pump, and the quantitative relationship between the compression volume of the pressure regulating valve, the pressure value of the hydraulic pump and the flow value of the hydraulic pump can be used.

[0035] After obtaining the desired pressure value and flow value of the hydraulic pump, the target compression amount of the pressure regulating valve can be determined according to the quantitative relationship among the compression amount of the pressure regulating valve, the pressure value of the hydraulic pump and the flow value of the hydraulic pump.

[0036] Since the compression amount of the pressure regulating valve is determined by the expansion and contraction amount of the pressure regulating telescopic member in the pressure regulating valve, in some embodiments, the target expansion and contraction amount of the pressure regulating telescopic member in the pressure regulating valve can be obtained as the target compression amount of the pressure regulating valve based on the expected pressure value and flow value of the hydraulic pump.

[0037] S103, based on the target compression amount, adjusting the pressure regulating valve so that the difference between the actual pressure value and the expected pressure value of the hydraulic pump is within a preset pressure difference range.

[0038] Among them, the preset pressure difference range can be set according to actual needs and is not limited here.

[0039] After the target compression amount of the pressure regulating valve is obtained, the compression amount of the pressure regulating valve can be adjusted to the target compression amount so that the difference between the actual pressure value of the hydraulic pump and the expected pressure value is within a preset pressure difference range.

[0040] In the disclosed embodiment, the flow value of the hydraulic pump is obtained, and the target compression of the pressure regulating valve is obtained based on the expected pressure value and flow value of the hydraulic pump. The pressure regulating valve is used to adjust the pressure of the hydraulic pump. Based on the target compression, the pressure regulating valve is adjusted so that the difference between the actual pressure value and the expected pressure value of the hydraulic pump is within a preset pressure difference range. In the disclosed embodiment, the target compression of the pressure regulating valve is obtained based on the expected pressure value and flow value of the hydraulic pump, and the compression of the pressure regulating valve when the hydraulic pump reaches the expected pressure value at different flow rates can be accurately obtained, so that the pressure regulating valve can be precisely adjusted, and then the pressure of the hydraulic pump can be precisely adjusted, thereby improving the accuracy and speed of the pressure regulation of the hydraulic pump and avoiding overshoot.

[0041] In one embodiment of the present disclosure, a target compression of a pressure regulating valve is obtained based on an expected pressure value and flow value of a hydraulic pump, including: inputting the expected pressure value and flow value into a pre-trained target nerve to output the target compression of the pressure regulating valve.

[0042] In some implementations, a neural network can be trained based on the quantitative relationship between the compression of the pressure regulating valve, the pressure value of the hydraulic pump, and the flow value of the hydraulic pump to obtain a target neural network, so that the target neural network has the quantitative relationship between the compression of the pressure regulating valve, the pressure value of the hydraulic pump, and the flow value of the hydraulic pump. When the expected pressure value and flow value of the hydraulic pump are input into the target neural network, the target neural network can output the target compression of the displaced pressure regulating valve.

[0043] The disclosed embodiment uses a trained neural network to obtain the compression amount of the pressure regulating valve when the hydraulic pump reaches a desired pressure value at different flow rates, and can obtain accurate data, thereby improving the accuracy of pressure regulation of the hydraulic pump.

[0044] Figure 3 A flow chart of a method for regulating the pressure of a hydraulic pump according to an embodiment of the present disclosure is provided. Figure 3 , the training process of the target neural network is explained, which includes the following steps:

[0045] S301, collecting sample expected pressure values ​​and sample flow values ​​of the hydraulic pump.

[0046] The sample expected pressure value may be a preset outlet pressure value that the hydraulic pump needs to reach, and the sample flow value may be different flow values ​​of hydraulic pumps of different displacement sizes.

[0047] In the disclosed embodiment, different expected pressure values ​​can be set for hydraulic pumps of different displacement sizes as sample expected pressure values, and the hydraulic pumps of different displacement sizes can be tested to obtain the compression amount of the pressure regulating valve when the hydraulic pumps of different displacement sizes reach the corresponding expected pressure values ​​under different flow values ​​(i.e., sample flow values).

[0048] S302, inputting the sample expected pressure value and the sample flow value into the initial neural network to output the predicted compression amount of the pressure regulating valve.

[0049] S303: Obtain a loss value based on the predicted compression amount and the label value.

[0050] Among them, the label value is the actual compression amount of the pressure regulating valve when the hydraulic pump reaches the sample expected pressure value under the sample flow value.

[0051] S304, based on the loss value, adjusting the model parameters of the initial neural network to obtain the target neural network.

[0052] After obtaining the sample expected pressure value and the sample flow value, the sample expected pressure value and the sample flow value can be input into the initial neural network to obtain the predicted compression of the pressure regulating valve output by the initial neural network, and then based on the predicted compression and the label value, the loss value is obtained, and the initial neural network is trained according to the loss value until the training end condition is met to obtain a trained target neural network, wherein the training end condition may be the convergence of the loss value, the neural network achieving a preset effect, the number of training times reaching a set number, etc., and no limitation is made here.

[0053] In the disclosed embodiment, sample expected pressure values ​​and sample flow values ​​of the hydraulic pump are collected, and the sample expected pressure values ​​and sample flow values ​​are input into the initial neural network to output the predicted compression of the pressure regulating valve, and the loss value is obtained based on the predicted compression and the label value. In the disclosed embodiment, the neural network is trained so that the neural network has a mapping relationship between the compression of the pressure regulating valve, the pressure value of the hydraulic pump, and the flow value of the hydraulic pump, so that the target compression of the pressure regulating valve can be obtained through the trained neural network to improve the accuracy and speed of the pressure regulation of the hydraulic pump.

[0054] Figure 4 A flow chart of a method for regulating the pressure of a hydraulic pump according to an embodiment of the present disclosure is provided. Figure 4 , the process of adjusting the pressure regulating valve based on the target compression is explained, including the following steps:

[0055] S401, obtaining the current expansion and contraction amount of the pressure regulating expansion and contraction component in the pressure regulating valve.

[0056] The pressure-adjusting telescopic member can be extended and retracted to adjust the pressure of the hydraulic pump, and the amount of extension and retraction is the length of the pressure-adjusting telescopic member.

[0057] Optionally, the pressure regulating valve may be an overflow valve, the pressure regulating telescopic member may be a pilot spring in the overflow valve, and the current length of the pressure regulating telescopic member is the length of the pilot spring.

[0058] S402, calculating the difference between the current expansion and contraction amount of the voltage-regulating expansion and contraction component and the target expansion and contraction amount.

[0059] S403, adjusting the voltage-adjusting telescopic component according to the differential telescopic amount.

[0060] After obtaining the target expansion amount of the pressure-regulating telescopic component in the pressure-regulating valve based on the expected pressure value and flow value of the hydraulic pump, the current expansion amount of the pressure-regulating telescopic component can be obtained, and the differential expansion amount between the current expansion amount of the pressure-regulating telescopic component and the target expansion amount can be calculated, and the pressure-regulating telescopic component can be adjusted to the target expansion amount according to the differential expansion amount.

[0061] In some embodiments, the voltage-adjusting telescopic component can be connected to a power device such as a stepper motor, a servo motor, or a proportional electromagnet drive, and the telescopic amount of the voltage-adjusting telescopic component can be adjusted by controlling the power device.

[0062] In the disclosed embodiment, the current expansion amount of the pressure regulating telescopic part in the pressure regulating valve is obtained, the differential expansion amount between the current expansion amount of the pressure regulating telescopic part and the target expansion amount is calculated, and the pressure regulating telescopic part is adjusted according to the differential expansion amount. The disclosed embodiment can accurately adjust the pressure regulating valve, improve the accuracy of the pressure regulation of the hydraulic pump, and does not need to perform multiple adjustments, improve the adjustment speed, and avoid overshoot.

[0063] Figure 5 A flow chart of a method for regulating the pressure of a hydraulic pump according to an embodiment of the present disclosure is provided. Based on the above embodiment, Figure 5 As shown, based on the target compression, after adjusting the pressure regulating valve, the following steps are included:

[0064] S501, measuring the compression amount of the pressure regulating valve after adjustment by a distance meter.

[0065] Among them, the rangefinder includes a laser rangefinder, an infrared rangefinder, an ultrasonic rangefinder, etc., which are used for the compression amount of the pressure regulating valve.

[0066] S502: In response to the compression amount of the pressure regulating valve after adjustment not reaching the target compression amount, the pressure regulating valve is readjusted.

[0067] S503: In response to the compression amount after the pressure regulating valve is adjusted reaching the target compression amount, the pressure regulating valve is not adjusted.

[0068] After the pressure regulating valve is adjusted based on the target compression, the compression of the pressure regulating valve after adjustment can be measured by a rangefinder. If the compression of the pressure regulating valve after adjustment does not reach the target compression, the pressure regulating valve is readjusted until the target compression is reached; if the compression of the pressure regulating valve after adjustment reaches the target compression, the pressure regulating valve is not adjusted.

[0069] In some implementations, the telescopic amount (i.e., length) of the pressure-regulating telescopic component in the pressure-regulating valve can be measured by distance measurement as the compression amount of the pressure-regulating valve. After adjusting the pressure-regulating valve, if the telescopic amount of the pressure-regulating telescopic component in the pressure-regulating valve does not reach the target telescopic amount, the pressure-regulating telescopic component is readjusted to reach the target telescopic amount; if the telescopic amount of the pressure-regulating telescopic component in the pressure-regulating valve has reached the target telescopic amount, the pressure-regulating telescopic component is not adjusted.

[0070] In the embodiment of the present disclosure, the compression amount after the pressure regulating valve is adjusted is measured by a distance meter, and in response to the compression amount after the pressure regulating valve is adjusted not reaching the target compression amount, the pressure regulating valve is readjusted. In the embodiment of the present disclosure, the compression amount after the pressure regulating valve is adjusted is measured by a distance meter, so that it can be confirmed whether the pressure regulating valve has reached the target compression amount, and the pressure regulating valve can be readjusted when the pressure regulating valve has not reached the target compression amount, thereby ensuring the accuracy of the adjustment.

[0071] In order to enable those skilled in the art to more clearly understand the pressure regulation method of the hydraulic pump provided in the embodiment of the present disclosure, Figure 6 FIG. 1 is an example diagram of the application of the pressure regulation method of the hydraulic pump according to the embodiment of the present disclosure in a hydraulic pump test system. Figure 6 As shown, the hydraulic pump testing system includes a hydraulic pump 1, a safety valve 2, an accumulator 3, a digital overflow valve 4, a pressure sensor 5, a flow sensor 6, a linear stepping motor 7, and a laser displacer 8.

[0072] Among them, the digital relief valve 4 is connected to the outlet of the hydraulic pump 1 to adjust the outlet pressure of the hydraulic pump 1. At the same time, the outlet of the hydraulic pump 1 is also connected to the accumulator 3 and the safety valve 2 to stabilize and protect the pressure. The pressure sensor 5 is installed at the outlet of the hydraulic pump 1 to detect the outlet pressure of the hydraulic pump 1. The flow sensor 6 is used to detect the flow of the hydraulic pump 1. The laser displacer 8 is used to detect the expansion and contraction amount (displacement) of the linear stepper motor 7 axis. The linear stepper motor 7 is used to adjust the expansion and contraction amount of the pilot spring in the relief valve 4.

[0073] During the performance test of the hydraulic pump 1 by the hydraulic pump test system, the data acquisition system collects the flow value of the hydraulic pump 1 measured by the flow sensor 6 and sends it to the computer. After receiving the flow value of the hydraulic pump 1, the computer can call the preset expected pressure value of the hydraulic pump 1 from its own storage space, input the expected pressure value and the flow value measured by the flow sensor 6 into the pre-trained neural network, and obtain the target expansion and contraction amount of the pilot spring in the digital relief valve 4. Then the computer sends a control signal to the controller. After receiving the control signal, the controller can control the driver to drive the linear stepper motor 7 to adjust the expansion and contraction amount of the pilot spring in the digital relief valve 4 to the target expansion and contraction amount. Since the expansion and contraction amount of the pilot spring is consistent with the expansion and contraction amount of the linear stepper motor 7 axis, in the adjustment process, the expansion and contraction amount of the linear stepper motor 7 axis is adjusted to the target expansion and contraction amount so that the expansion and contraction amount of the pilot spring in the digital relief valve 4 reaches the target expansion and contraction amount.

[0074] After the adjustment is completed, the data acquisition system collects the outlet pressure value of the hydraulic pump 1 measured by the pressure sensor 5 and sends it to the computer, which determines whether the outlet pressure value of the hydraulic pump 1 reaches the set expected pressure value to verify the accuracy of the pressure adjustment. At the same time, the data acquisition system collects the expansion and contraction amount of the linear stepper motor 7 axis measured by the laser displacement device 8 and sends it to the computer, which determines whether the expansion and contraction amount of the linear stepper motor 7 axis reaches the target expansion and contraction amount, that is, whether the expansion and contraction amount of the pilot spring in the digital relief valve 4 reaches the target expansion and contraction amount. If it does not reach the target expansion and contraction amount, readjustment is performed.

[0075] In order to implement the above embodiment, the embodiment of the present disclosure also proposes a pressure regulating device for a hydraulic pump. Figure 7 FIG. 1 is a schematic diagram of the structure of a pressure regulating device for a hydraulic pump according to an embodiment of the present disclosure. Figure 7 As shown, the pressure regulating device 700 of the hydraulic pump includes:

[0076] The first acquisition module 710 is used to acquire the flow value of the hydraulic pump.

[0077] The second acquisition module 720 is used to acquire a target compression amount of a pressure regulating valve based on an expected pressure value and flow value of the hydraulic pump, where the pressure regulating valve is used to adjust the pressure of the hydraulic pump.

[0078] The first adjustment module 730 is used to adjust the pressure regulating valve based on the target compression amount so that the difference between the actual pressure value and the expected pressure value of the hydraulic pump is within a preset pressure difference range.

[0079] In the disclosed embodiment, the flow value of the hydraulic pump is obtained, and the target compression of the pressure regulating valve is obtained based on the expected pressure value and flow value of the hydraulic pump. The pressure regulating valve is used to adjust the pressure of the hydraulic pump. Based on the target compression, the pressure regulating valve is adjusted so that the difference between the actual pressure value and the expected pressure value of the hydraulic pump is within a preset pressure difference range. In the disclosed embodiment, the target compression of the pressure regulating valve is obtained based on the expected pressure value and flow value of the hydraulic pump, and the compression of the pressure regulating valve when the hydraulic pump reaches the expected pressure value at different flow rates can be accurately obtained, so that the pressure regulating valve can be precisely adjusted, and then the pressure of the hydraulic pump can be precisely adjusted, thereby improving the accuracy and speed of the pressure regulation of the hydraulic pump and avoiding overshoot.

[0080] In one embodiment of the present disclosure, the second acquisition module 720 is further used to: input the expected pressure value and flow value into a pre-trained target neural network to output a target compression amount of the pressure regulating valve.

[0081] In one embodiment of the present disclosure, the pressure regulating device 700 of the hydraulic pump also includes a training module 740, which is used to collect sample expected pressure values ​​and sample flow values ​​of the hydraulic pump; input the sample expected pressure values ​​and sample flow values ​​into the initial neural network to output the predicted compression amount of the pressure regulating valve; obtain the loss value based on the predicted compression amount and the label value; and adjust the model parameters of the initial neural network based on the loss value to obtain the target neural network.

[0082] In one embodiment of the present disclosure, the first acquisition module 710 is further used to: acquire a target expansion amount of a pressure regulating telescopic member in the pressure regulating valve as a target compression amount based on an expected pressure value and flow value of the hydraulic pump.

[0083] In one embodiment of the present disclosure, the first adjustment module 730 is also used to: obtain the current expansion and contraction amount of the pressure-regulating telescopic component in the pressure-regulating valve; calculate the differential expansion and contraction amount between the current expansion and contraction amount of the pressure-regulating telescopic component and the target expansion and contraction amount; and adjust the pressure-regulating telescopic component according to the differential expansion and contraction amount.

[0084] In one embodiment of the present disclosure, the pressure regulating device 700 of the hydraulic pump further includes:

[0085] The measuring module 750 is used to measure the compression amount of the pressure regulating valve after the pressure regulating valve is adjusted by a distance meter;

[0086] The second adjustment module 760 is configured to readjust the pressure regulating valve in response to the compression amount of the pressure regulating valve after adjustment not reaching the target compression amount.

[0087] It should be noted that the above explanation of the embodiment of the pressure regulation method of the hydraulic pump is also applicable to the pressure regulation device of the hydraulic pump in the embodiment of the present disclosure, and the specific process will not be repeated here.

[0088] like Figure 8 , is a block diagram of an electronic device for a pressure regulating method of a hydraulic pump according to an embodiment of the present disclosure. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as intelligent voice interaction devices, personal digital processing, cellular phones, smart phones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present disclosure described and / or required herein.

[0089] like Figure 8As shown, the electronic device includes: one or more processors 801, memory 802, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses, and can be installed on a common mainboard or installed in other ways as needed. Processor 801 can process instructions executed in the electronic device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In other embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple electronic devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 8 A processor 801 is taken as an example.

[0090] The memory 802 is a non-transitory computer-readable storage medium provided by the present disclosure. The memory stores instructions executable by at least one processor to enable at least one processor to perform the pressure regulation method for a hydraulic pump provided by the present disclosure. The non-transitory computer-readable storage medium of the present disclosure stores computer instructions, which are used to enable a computer to perform the pressure regulation method for a hydraulic pump provided by the present disclosure.

[0091] The memory 802 is a non-transient computer-readable storage medium that can be used to store non-transient software programs, non-transient computer executable programs and modules, such as program instructions / modules corresponding to the pressure regulation method of the hydraulic pump in the embodiment of the present disclosure. The processor 801 executes various functional applications and data processing of the server by running the non-transient software programs, instructions and modules stored in the memory 802, that is, implements the pressure regulation method of the hydraulic pump in the above method embodiment.

[0092] The memory 802 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required by at least one function; the data storage area may store data created according to the use of the electronic device of the pressure regulation method of the hydraulic pump, etc. In addition, the memory 802 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some embodiments, the memory 802 may optionally include a memory remotely arranged relative to the processor 801, and these remote memories may be connected to the electronic device of the pressure regulation method of the hydraulic pump via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0093] The electronic device of the hydraulic pump pressure regulation method may further include: an input device 803 and an output device 804. The processor 801, the memory 802, the input device 803 and the output device 804 may be connected via a bus or other means. Figure 8 The example of connecting through bus is taken in the following.

[0094] The input device 803 can receive input digital or character information, and generate key signal input related to user settings and function control of the electronic device of the pressure regulation method of the hydraulic pump, such as a touch screen, a keypad, a mouse, a track pad, a touch pad, an indicator rod, one or more mouse buttons, a trackball, a joystick and other input devices. The output device 804 may include a display device, an auxiliary lighting device (e.g., an LED) and a tactile feedback device (e.g., a vibration motor), etc. The display device may include, but is not limited to, a liquid crystal display (LCD), a light emitting diode (LED) display and a plasma display. In some embodiments, the display device may be a touch screen.

[0095] In order to implement the above embodiments, the present disclosure also proposes a storage medium.

[0096] When the instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the above-mentioned pressure regulation method of the hydraulic pump.

[0097] Various implementations of the systems and techniques described herein can be realized in digital electronic circuit systems, integrated circuit systems, dedicated ASICs (application specific integrated circuits), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0098] These computer programs (also referred to as programs, software, software applications, or code) include machine instructions for programmable processors and can be implemented using high-level procedural and / or object-oriented programming languages, and / or assembly / machine languages. As used herein, the terms "machine-readable medium" and "computer-readable medium" refer to any computer program product, device, and / or means (e.g., disk, optical disk, memory, programmable logic device (PLD)) for providing machine instructions and / or data to a programmable processor, including a machine-readable medium that receives machine instructions as a machine-readable signal. The term "machine-readable signal" refers to any signal for providing machine instructions and / or data to a programmable processor.

[0099] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0100] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0101] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship between the client and the server is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services ("Virtual Private Server", or "VPS" for short).

[0102] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0103] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this disclosure, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0104] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A method for regulating the pressure of a hydraulic pump, characterized in that: include: Get the flow value of the hydraulic pump; Based on the expected pressure value of the hydraulic pump and the flow value, obtaining a target compression amount of a pressure regulating valve, wherein the pressure regulating valve is used to adjust the pressure of the hydraulic pump; Based on the target compression amount, adjusting the pressure regulating valve so that the difference between the actual pressure value of the hydraulic pump and the expected pressure value is within a preset pressure difference range; The step of obtaining a target compression amount of the pressure regulating valve based on the expected pressure value of the hydraulic pump and the flow value includes: Inputting the desired pressure value and the flow value into a pre-trained target neural network to output a target compression amount of the pressure regulating valve; The training process of the target neural network includes: Collecting sample expected pressure values ​​and sample flow values ​​of the hydraulic pump, wherein the sample flow values ​​are different flow values ​​of hydraulic pumps of different displacement sizes, and setting different expected pressure values ​​for hydraulic pumps of different displacement sizes as sample expected pressure values; Inputting the sample expected pressure value and the sample flow value into an initial neural network to output a predicted compression amount of the pressure regulating valve; Based on the predicted compression amount and the label value, a loss value is obtained, wherein the label value is the actual compression amount of the pressure regulating valve when the hydraulic pump reaches the sample expected pressure value at the sample flow value; Based on the loss value, the model parameters of the initial neural network are adjusted to obtain the target neural network.

2. The method according to claim 1, characterized in that The pressure regulating valve includes a pressure regulating telescopic member, and obtaining a target compression amount of the pressure regulating valve includes: Based on the expected pressure value of the hydraulic pump and the flow value, a target expansion and contraction amount of the pressure-regulating expansion and contraction member in the pressure-regulating valve is obtained as the target compression amount.

3. The method according to claim 2, characterized in that The step of adjusting the pressure regulating valve based on the target compression amount includes: Obtaining the current expansion and contraction amount of the pressure-regulating expansion and contraction component in the pressure-regulating valve; Calculate the difference between the current expansion and contraction amount of the voltage-regulating expansion and contraction component and the target expansion and contraction amount; The pressure-adjusting telescopic component is adjusted according to the differential telescopic amount.

4. The method according to claim 1, characterized in that: After the pressure regulating valve is adjusted based on the target compression amount, the method includes: Measuring the compression amount of the pressure regulating valve after adjustment by a distance meter; In response to the compression amount after the pressure regulating valve is adjusted not reaching the target compression amount, the pressure regulating valve is readjusted.

5. A pressure regulating device for a hydraulic pump, characterized in that: include: A first acquisition module, used to acquire a flow value of a hydraulic pump; A second acquisition module, configured to acquire a target compression amount of a pressure regulating valve based on an expected pressure value of the hydraulic pump and the flow value, wherein the pressure regulating valve is configured to adjust the pressure of the hydraulic pump; an adjustment module, configured to adjust the pressure regulating valve based on the target compression amount so that the difference between the actual pressure value of the hydraulic pump and the expected pressure value is within a preset pressure difference range; The second acquisition module is further used for: Inputting the desired pressure value and the flow value into a pre-trained target neural network to output a target compression amount of the pressure regulating valve; The training process of the target neural network includes: Collecting sample expected pressure values ​​and sample flow values ​​of the hydraulic pump, wherein the sample flow values ​​are different flow values ​​of hydraulic pumps of different displacement sizes, and setting different expected pressure values ​​for hydraulic pumps of different displacement sizes as sample expected pressure values; Inputting the sample expected pressure value and the sample flow value into an initial neural network to output a predicted compression amount of the pressure regulating valve; Based on the predicted compression amount and the label value, a loss value is obtained, wherein the label value is the actual compression amount of the pressure regulating valve when the hydraulic pump reaches the sample expected pressure value at the sample flow value; Based on the loss value, the model parameters of the initial neural network are adjusted to obtain the target neural network.

6. An electronic device, characterized in that: include: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 4.

7. A computer-readable storage medium storing computer instructions, characterized in that: The computer instructions are used to cause the computer to execute the method according to any one of claims 1 to 4.

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