Oil pump control method, device, electronic equipment, and storage medium

Abstract

The present application discloses a control method, device, electronic device, and storage medium for an oil pump, the method comprising: inputting current parameters of an engine into an oil pump opening model and an oil pump flow model respectively to obtain a preset opening of the oil pump and a preset flow of the oil pump, the current parameters comprising: a current speed, a current torque, and a current oil temperature; determining a corrected opening of the oil pump according to the actual flow of the oil pump and the preset flow of the oil pump; correcting the preset opening of the oil pump using the corrected opening of the oil pump to obtain a required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump. Compared with the existing control method, the present application controls the oil pump through an oil pump opening model and an oil pump flow model, and also utilizes the oil temperature parameter in addition to the speed and torque, so as to enable the oil pump to always maintain optimal performance and accurately realize the oil pressure requirements of the engine under various operating conditions.

Description

Technical Field

[0001] The present application relates to the technical field of oil pump control, and in particular to a control method, device, electronic device, and storage medium for an oil pump. Background Art

[0002] When the engine is working, the driving gear on the camshaft drives the transmission gear of the oil pump, causing the driving gear fixed on the driving gear shaft to rotate, thereby driving the driven gear to rotate in the opposite direction, sending the oil from the oil inlet chamber along the tooth gap and the pump wall to the oil outlet chamber. In this way, low pressure is formed at the oil inlet chamber, generating suction, sucking the oil in the oil pan into the oil inlet chamber.

[0003] The control of the oil pump is an important part of vehicle control. Its main function is to increase the oil pressure to a certain level and then force it to be delivered to the moving surfaces of various engine parts. The current oil pump control method mainly directly finds the oil pressure setting value through the current engine speed and torque, and then controls the oil pressure through PID control of the oil pump valve opening.

[0004] However, controlling the engine speed and torque alone cannot accurately meet the oil pressure requirements of the engine under various operating conditions. Summary of the invention

[0005] Based on the above-mentioned deficiencies of the prior art, the present application provides a control method, device, electronic device, and storage medium for an oil pump to solve the problem that the prior art cannot accurately meet the oil pressure requirements of the engine under various operating conditions.

[0006] In order to achieve the above objectives, this application provides the following technical solutions:

[0007] A first aspect of the present application provides a method for controlling an oil pump, comprising:

[0008] Inputting current parameters of the engine into an oil pump opening model and an oil pump flow model respectively to obtain a preset opening of the oil pump and a preset flow of the oil pump, wherein the current parameters include: a current speed, a current torque and a current oil temperature;

[0009] determining a corrected opening of the oil pump according to an actual flow rate of the oil pump and a preset flow rate of the oil pump;

[0010] The preset opening of the oil pump is corrected by using the corrected opening of the oil pump to obtain the required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump.

[0011] Optionally, in the above-mentioned oil pump control method, determining the corrected opening of the oil pump according to the actual flow rate of the oil pump and the preset flow rate of the oil pump includes:

[0012] Calculating the actual flow rate of the oil pump and the preset flow rate of the oil pump to obtain a flow rate difference of the oil pump;

[0013] The oil pump opening correction table is searched according to the flow difference of the oil pump to obtain the correction opening of the oil pump.

[0014] Optionally, in the above-mentioned oil pump control method, using the corrected opening of the oil pump to correct the preset opening of the oil pump to obtain the required opening of the oil pump includes:

[0015] determining an actual flow rate of the oil pump;

[0016] The corrected opening of the oil pump and the preset opening of the oil pump are summed to obtain the required opening of the oil pump.

[0017] Optionally, in the above-mentioned oil pump control method, before inputting the current parameters of the engine into the oil pump opening model and the oil pump flow model respectively to obtain the preset opening of the oil pump and the preset flow of the oil pump, it also includes:

[0018] Get the current parameters of the engine.

[0019] Optionally, in the above-mentioned oil pump control method, the process of establishing the oil pump opening model and the oil pump flow model includes:

[0020] Acquire measured data, the measured data comprising at least one set of measured data arrays, the measured data arrays comprising an oil pump opening and an oil pump flow rate corresponding to the lowest fuel consumption of the engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and corresponding oil temperatures corresponding to each of the measured data arrays is different;

[0021] The measured data is modeled using preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.

[0022] Optionally, in the above-mentioned oil pump control method, the oil pump opening model is: , represents the oil pump opening model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump opening model.

[0023] Optionally, in the above-mentioned oil pump control method, the oil pump flow model is: , represents the oil pump flow model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump flow model.

[0024] A second aspect of the present application provides a control device for an oil pump, comprising:

[0025] An input unit, used to input current parameters of the engine into an oil pump opening model and an oil pump flow model respectively, to obtain a preset opening of the oil pump and a preset flow of the oil pump, wherein the current parameters include: a current speed, a current torque and a current oil temperature;

[0026] a determination unit, configured to determine a corrected opening of the oil pump according to an actual flow rate of the oil pump and a preset flow rate of the oil pump;

[0027] A correction control unit is used to correct the preset opening of the oil pump using the corrected opening of the oil pump to obtain the required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump.

[0028] Optionally, in the above-mentioned oil pump control device, the determination unit is specifically used for:

[0029] determining an actual flow rate of the oil pump;

[0030] Calculating the actual flow rate of the oil pump and the preset flow rate of the oil pump to obtain a flow rate difference of the oil pump;

[0031] The oil pump opening correction table is searched according to the flow difference of the oil pump to obtain the correction opening of the oil pump.

[0032] Optionally, in the above-mentioned oil pump control device, the correction control unit is specifically used for:

[0033] The corrected opening of the oil pump and the preset opening of the oil pump are summed to obtain the required opening of the oil pump.

[0034] Optionally, in the above-mentioned oil pump control device, it also includes:

[0035] The acquisition unit is used to acquire the current parameters of the engine.

[0036] Optionally, in the above-mentioned oil pump control device, the process of establishing the oil pump opening model and the oil pump flow model includes:

[0037] Acquire measured data, the measured data comprising at least one set of measured data arrays, the measured data arrays comprising an oil pump opening and an oil pump flow rate corresponding to the lowest fuel consumption of the engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and corresponding oil temperatures corresponding to each of the measured data arrays is different;

[0038] The measured data is modeled using preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.

[0039] Optionally, in the above-mentioned oil pump control device, the oil pump opening model is: , represents the oil pump opening model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump opening model.

[0040] Optionally, in the above-mentioned oil pump control device, the oil pump flow model is: , represents the oil pump flow model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump flow model.

[0041] A third aspect of the present application provides an electronic device, including:

[0042] Memory and processor;

[0043] Wherein, the memory is used to store programs;

[0044] The processor is used to execute the program, and when the program is executed, it is specifically used to implement the oil pump control method as described in any one of the first aspects disclosed.

[0045] A fourth aspect of the present application provides a computer storage medium for storing a computer program, wherein when the computer program is executed, it is used to implement the oil pump control method as described in any one of the items disclosed in the first aspect.

[0046] The present application provides a method for controlling an oil pump, wherein current parameters of an engine are respectively input into an oil pump opening model and an oil pump flow model to obtain a preset opening of the oil pump and a preset flow of the oil pump, wherein the current parameters include: current speed, current torque and current oil temperature; a corrected opening of the oil pump is determined based on the actual flow of the oil pump and the preset flow of the oil pump; the preset opening of the oil pump is corrected using the corrected opening of the oil pump to obtain a required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump. Compared with the existing control method which only relies on the speed and torque of the engine, the present application controls the oil pump through an oil pump opening model and an oil pump flow model, and also utilizes the oil temperature parameter in addition to the speed and torque, so that the oil pump can always maintain optimal performance and accurately realize the oil pressure requirements of the engine under various operating conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0048] Figure 1 A schematic flow chart of a method for controlling an oil pump provided in an embodiment of the present application;

[0049] Figure 2 A schematic diagram of the process of establishing an oil pump opening model and an oil pump flow model provided in an embodiment of the present application;

[0050] Figure 3 A schematic diagram of a flow chart for determining a corrected opening of an oil pump provided in an embodiment of the present application;

[0051] Figure 4 A control logic diagram of a method for controlling an oil pump provided in an embodiment of the present application;

[0052] Figure 5 A schematic flow chart of a method for controlling an oil pump provided in another embodiment of the present application;

[0053] Figure 6 and Figure 7 A schematic diagram of the structure of two oil pump control devices provided in the embodiments of the present application;

[0054] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0056] In this application, relational terms such as first and second, etc. are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0057] First of all, it should be noted that the inventors have found through research that the problem that the prior art cannot accurately meet the oil pressure requirements of the engine under various operating conditions can be manifested in the following ways: when the engine is in a cold start state, due to the low oil temperature, it is easy to cause a large fluctuation in the oil pressure, causing the engine to stop suddenly due to excessive oil pressure, causing certain harm to the engine, and at the same time, it cannot guarantee that the engine performance is optimized in real time.

[0058] In this regard, an embodiment of the present application provides a method for controlling an oil pump to solve the problem that the prior art cannot accurately meet the oil pressure requirements of the engine under various operating conditions.

[0059] See also Figure 1 , the oil pump control method mainly includes the following steps:

[0060] S101. Inputting current parameters of the engine into an oil pump opening model and an oil pump flow model respectively to obtain a preset opening of the oil pump and a preset flow of the oil pump.

[0061] Among them, the current parameters include: current speed, current torque and current oil temperature.

[0062] In practical applications, the engine and the oil pump belong to the same vehicle, and the oil pump can provide oil for lubrication of the engine. The oil pump can be a variable displacement oil pump. Specifically, the control method of the oil pump can be electronic control.

[0063] It should be noted that the oil pump opening model and the oil pump flow model may be pre-established; in some embodiments, the establishment process of the oil pump opening model and the oil pump flow model is as follows: Figure 2 As shown, it mainly includes steps S201 and S202:

[0064] S201, obtaining measured data.

[0065] Among them, the measured data includes at least one set of measured arrays, the measured arrays include the oil pump opening and oil pump flow corresponding to the lowest fuel consumption of the engine under the corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and corresponding oil temperatures corresponding to each measured array is different.

[0066] In practical applications, measured data can be obtained through calibration tests. Specifically, the oil pump opening is calibrated to minimize the fuel consumption of the engine at different oil temperatures under different working conditions, and the current oil pump opening and oil pump flow are recorded to obtain each set of measured data. Different working conditions indicate different engine speeds and torques.

[0067] It should be noted that in the existing control method of the oil pump using open-loop control, the oil pump opening setting MAP is generally found based on the speed and torque to obtain the oil pump opening, and the oil pump actuator executes according to the set opening. In the process of obtaining the measured data through the calibration test method, when collecting test data, the oil pump opening setting MAP is adjusted to minimize the engine fuel consumption under different working conditions and different oil temperatures. When the engine fuel consumption reaches the lowest, the corresponding speed, torque, oil temperature, oil pump opening and oil pump flow are recorded to obtain a set of measured arrays.

[0068] It should also be noted that the method for obtaining each group of measured arrays in the measured data is not limited to the above, but can also be determined according to the application environment and user needs, or by other existing methods. This application does not limit it and it is within the protection scope of this application.

[0069] For example, the measured data may be shown in Table 1-1:

[0070] Table 1-1 Measured data table

[0071] Array sequence number Speed Torque Oil temperature Oil pump opening Oil pump flow 1 x1 y1 t1 g1 f1 2 x2 y2 t2 g2 f2 3 x3 y3 t3 g3 f3 4 x4 y4 t4 g4 f4 5 x5 y5 t5 g5 f5 6 x6 y6 t6 g6 f6 7 x7 y7 t7 g7 f7 8 x8 y8 t8 g8 f8 9 x9 y9 t9 g9 f9 10 x10 y10 t10 g10 f10 … … … … … … … … … … … … … … … … … … 198 x198 y198 t198 g198 f198 199 x199 y199 t199 g199 f199 200 x200 y200 t200 g200 f200

[0072] S202. Use preset simulation analysis software to model the measured data to obtain an oil pump opening model and an oil pump flow model.

[0073] Among them, the preset simulation analysis software can be MATLAB; of course, it is not limited to this, and it can also be other existing simulation analysis software. This application does not limit the specific type of the preset simulation analysis software, and all are within the protection scope of this application.

[0074] Taking MATLAB as an example, the oil pump opening model can be: , represents the oil pump opening model, Indicates the speed, Indicates torque, Indicates the oil temperature. The coefficients corresponding to the various factors or factor combinations of the oil pump opening model are represented; the oil pump flow model can be: , represents the oil pump flow model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump flow model.

[0075] Specifically, and Represents the influence ratio of each factor on the oil pump opening. The larger the coefficient, the greater the influence. In practical applications, and The specific value of can be obtained by fitting the actual data collected from different engine models in the corresponding simulation analysis software.

[0076] Furthermore, after being imported into MATLAB, a mathematical formula for the oil pump opening based on the speed, torque, and oil temperature, and a mathematical formula for the oil pump flow based on the speed, torque, and oil temperature can be fitted, thereby obtaining the corresponding factors or coefficients.

[0077] It should be noted that due to the different configurations of engine models, the coefficients corresponding to the factors in the oil pump opening model and the oil pump flow model of different models will be slightly different. In practical applications, the coefficient size corresponding to each factor should be determined based on the actual collected data.

[0078] It should also be noted that the more measured arrays there are in the measured data, the more accurate the oil pump opening model and oil pump flow model fitted by the simulation analysis software will be, and the closer they will be to the actual situation; of course, the larger the amount of data, the greater the amount of calculation in the fitting process of the simulation analysis software, and the time spent on establishing the oil pump opening model and oil pump flow model will be.

[0079] In practical applications, the current parameters of the engine can be used as input factors and input into the oil pump opening model and the oil pump flow model, respectively, to obtain the preset opening of the oil pump and the preset flow of the oil pump. Specifically, the output of the oil pump opening model is the preset opening of the oil pump, and the output of the oil pump flow model is the preset flow of the oil pump.

[0080] S102: Determine a corrected opening of the oil pump according to an actual flow rate of the oil pump and a preset flow rate of the oil pump.

[0081] In practical applications, after obtaining the actual flow rate of the oil pump and the preset flow rate of the oil pump, mathematical operations can be performed, and then based on the operation results, the corrected opening of the oil pump can be determined in the relationship curve between the oil pump flow rate and the oil pump opening.

[0082] In some embodiments, the process of executing step S102 and determining the corrected opening of the oil pump according to the actual flow rate of the oil pump and the preset flow rate of the oil pump is as follows: Figure 3 As shown, it mainly includes steps S301 to S303:

[0083] S301. Determine the actual flow rate of the oil pump.

[0084] In practical applications, the flow data of the oil pump can be collected in real time to obtain the actual flow of the oil pump. Specifically, the actual flow of the oil pump can be obtained by reading it in real time through the electronic control unit (ECU) in the vehicle.

[0085] S302: Calculate the actual flow rate of the oil pump and the preset flow rate of the oil pump to obtain a flow rate difference of the oil pump.

[0086] In practical applications, the preset flow rate of the oil pump and the actual flow rate of the oil pump may be subtracted to obtain the flow rate difference of the oil pump.

[0087] Assuming that A represents the preset flow rate of the oil pump and B represents the actual flow rate of the oil pump, the flow difference C of the oil pump can be obtained by the following formula: C=AB.

[0088] S303: Look up the preset oil pump opening correction table according to the flow difference of the oil pump to obtain the corrected opening of the oil pump.

[0089] In practical applications, the larger the oil pump opening is, the greater the oil pump flow rate is. Therefore, the corresponding oil pump correction opening for each oil pump flow rate difference can be determined based on the relationship between the two.

[0090] Specifically, the preset oil pump opening correction table may include oil pump correction openings corresponding to a plurality of flow rate differences, and the oil pump correction opening corresponding to each flow rate difference may be obtained through a calibration test.

[0091] It should be noted that after the engine model is determined, different flow rate differences can be used as calibration values ​​to adjust the opening of the oil pump to obtain a corrected opening of the oil pump corresponding to each flow rate difference.

[0092] Exemplarily, the preset oil pump opening correction table may be as shown in Table 1-2:

[0093] Table 1-2 Correspondence between flow difference and oil pump correction opening

[0094] Flow rate difference (L / min) -40 -30 -20 -10 0 10 20 30 40 Oil pump correction opening (%) -8 -6 -4 -2 0 2 4 6 8

[0095] S103: Correcting a preset opening of the oil pump using the corrected opening of the oil pump to obtain a required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump.

[0096] In practical applications, the corrected opening of the oil pump and the preset opening of the oil pump may be summed to obtain the required opening of the oil pump.

[0097] Assuming that D represents the corrected opening of the oil pump, and E represents the preset opening of the oil pump, the required opening F of the oil pump can be obtained by the following formula: F=D+E.

[0098] It should be noted that since the corrected opening of the oil pump is determined by the difference between the preset flow rate and the actual flow rate of the oil pump, the preset opening of the oil pump is corrected by the corrected opening of the oil pump. The resulting required opening of the oil pump is more in line with the oil pressure requirement under the current engine operating state, thereby optimizing the performance of the oil pump and the engine.

[0099] Based on the above, the control logic diagram of the oil pump control method can be as follows: Figure 4 As shown. Among them, the oil pump opening model and the oil pump flow model are obtained by simulating and analyzing the data of the oil pump opening and oil pump flow corresponding to the optimal fuel consumption under different working conditions and different oil temperatures. After determining the required opening of the oil pump, the oil pump control system can be controlled to control the operation of the oil pump according to the required opening.

[0100] Based on the above principles, the oil pump control method provided in the present embodiment inputs the current parameters of the engine into the oil pump opening model and the oil pump flow model respectively to obtain the preset opening of the oil pump and the preset flow of the oil pump, wherein the current parameters include: the current speed, the current torque and the current oil temperature; the corrected opening of the oil pump is determined according to the actual flow of the oil pump and the preset flow of the oil pump; the preset opening of the oil pump is corrected by using the corrected opening of the oil pump to obtain the required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump. Compared with the existing control method which only relies on the engine speed and torque, the present application controls the oil pump through the oil pump opening model and the oil pump flow model, and also utilizes the oil temperature as a parameter in addition to the speed and torque, so that the oil pump can always maintain the optimal performance and accurately realize the oil pressure requirement of the engine under various operating conditions.

[0101] It is worth noting that the oil pump control method provided by the present application fully considers the influence of oil temperature, and can avoid the engine stopping suddenly due to excessive oil pressure when the engine is in a cold start state due to low oil temperature, which may cause a large fluctuation in oil pressure and cause certain damage to the engine, while ensuring that the engine performance is optimized in real time. That is, the oil pump control method provided by the present application can solve the problems of emergency stop and performance deterioration in special working conditions in traditional control methods.

[0102] There is also a control method for a variable flow oil pump. Although this method takes into account the influence of temperature factors on the opening of the oil pump when determining the target opening, and can ensure that the determined target opening has a high degree of accuracy, this method corrects the opening based on the actual oil pressure, while the present application corrects the opening based on the difference between the actual flow of the oil pump and the preset flow of the oil pump. In addition, the present application also utilizes an oil pump opening model and an oil pump flow model, and comprehensively considers the influence of engine speed, engine torque and oil temperature in the control process, thereby achieving higher control accuracy of the oil pump.

[0103] On the basis of the above embodiments, optionally, in another embodiment of the present application, a method for controlling an oil pump is provided. In step S101, the current parameters of the engine are respectively input into the oil pump opening model and the oil pump flow model to obtain the preset opening of the oil pump and the preset flow of the oil pump. Figure 5 , may further include step S401:

[0104] S401. Obtain current parameters of the engine.

[0105] In practical applications, the current torque, current speed and current oil temperature of the engine can be obtained through real-time reading by the ECU; specifically, the oil temperature sensor installed on the engine can be read through the ECU in real-time to obtain the current oil temperature of the engine.

[0106] Of course, it is not limited to this. The current parameters of the engine can also be obtained through other existing methods. This application does not limit them and they are all within the protection scope of this application.

[0107] In this embodiment, the current parameters of the engine can be obtained by acquiring the current parameters of the engine, so as to facilitate the execution of the subsequent oil pump control method.

[0108] Optionally, another embodiment of the present application further provides a control device for an oil pump, see Figure 6 , the control device of the oil pump mainly includes:

[0109] An input unit 101 is used to input current parameters of the engine into an oil pump opening model and an oil pump flow model respectively to obtain a preset opening of the oil pump and a preset flow of the oil pump, wherein the current parameters include: a current speed, a current torque and a current oil temperature;

[0110] A determination unit 102, configured to determine a corrected opening of the oil pump according to an actual flow rate of the oil pump and a preset flow rate of the oil pump;

[0111] The correction control unit 103 is used to correct the preset opening of the oil pump using the corrected opening of the oil pump to obtain the required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump.

[0112] In some embodiments, when the determination unit 102 is used to determine the corrected opening of the oil pump according to the actual flow rate of the oil pump and the preset flow rate of the oil pump, it is specifically used to:

[0113] determining an actual flow rate of the oil pump;

[0114] Calculating the actual flow rate of the oil pump and the preset flow rate of the oil pump to obtain a flow rate difference of the oil pump;

[0115] The oil pump opening correction table is searched based on the flow difference of the oil pump to obtain the corrected opening of the oil pump.

[0116] In some embodiments, the correction control unit 103 is used to correct the preset opening of the oil pump using the corrected opening of the oil pump to obtain the required opening of the oil pump, specifically for:

[0117] The corrected opening of the oil pump and the preset opening of the oil pump are summed to obtain the required opening of the oil pump.

[0118] In some embodiments, Figure 7 As shown, the control device of the oil pump also includes:

[0119] The acquisition unit 201 is used to acquire current parameters of the engine.

[0120] In some embodiments, the process of establishing the oil pump opening model and the oil pump flow model includes:

[0121] Acquire measured data, the measured data including at least one set of measured data arrays, the measured data arrays including the oil pump opening and the oil pump flow corresponding to the lowest fuel consumption of the engine under the corresponding working condition and the corresponding oil temperature, and at least one of the working condition and the corresponding oil temperature corresponding to each measured data array is different;

[0122] The measured data is modeled using the preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.

[0123] In some embodiments, the oil pump opening model is:

[0124] , represents the oil pump opening model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump opening model.

[0125] In some embodiments, the oil pump flow model is: , represents the oil pump flow model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump flow model.

[0126] In this embodiment, the input unit 101 is used to input the current parameters of the engine into the oil pump opening model and the oil pump flow model respectively, so as to obtain the preset opening of the oil pump and the preset flow of the oil pump, and the current parameters include: the current speed, the current torque and the current oil temperature; the determination unit 102 is used to determine the corrected opening of the oil pump according to the actual flow of the oil pump and the preset flow of the oil pump; the correction control unit 103 is used to correct the preset opening of the oil pump using the corrected opening of the oil pump, so as to obtain the required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump. Compared with the existing control method only through the engine speed and torque, the present application controls the oil pump through the oil pump opening model and the oil pump flow model, and also uses the oil temperature as a parameter in addition to the speed and torque, so as to enable the oil pump to maintain the optimal performance at all times and accurately realize the oil pressure requirements of the engine under various operating conditions.

[0127] It should be noted that the specific working process of each unit provided in the above embodiments of the present application can refer to the corresponding steps in the above method embodiments, and will not be repeated here.

[0128] Optionally, another embodiment of the present application provides an electronic device, such as Figure 8 As shown, including:

[0129] Memory 801 and processor 802 .

[0130] The memory 801 is used to store programs.

[0131] The processor 802 is used to execute the program stored in the memory 801, and when the program is executed, it is specifically used to implement the oil pump control method provided in any one of the above embodiments.

[0132] It should be noted that the specific implementation process can refer to the implementation method of the oil pump control method provided in the above method embodiment, which will not be repeated here.

[0133] Optionally, another embodiment of the present application provides a computer storage medium for storing a computer program, which, when executed, is used to implement the oil pump control method provided in any one of the above method embodiments.

[0134] It should be noted that the specific implementation process can refer to the implementation method of the oil pump control method provided in the above method embodiment, which will not be repeated here.

[0135] Among them, the computer storage media in the embodiments of the present application include permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer-readable media does not include temporary computer-readable media (transitory media), such as modulated data signals and carriers.

[0136] Professionals may further appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in the above description according to function. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0137] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling an oil pump, characterized in that: include: Inputting current parameters of the engine into an oil pump opening model and an oil pump flow model respectively to obtain a preset opening of the oil pump and a preset flow of the oil pump, wherein the current parameters include: a current speed, a current torque and a current oil temperature; determining a corrected opening of the oil pump according to an actual flow rate of the oil pump and a preset flow rate of the oil pump; Using the corrected opening of the oil pump to correct the preset opening of the oil pump, to obtain the required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump; The process of establishing the oil pump opening model and the oil pump flow model includes: Acquire measured data, the measured data comprising at least one set of measured data arrays, the measured data arrays comprising an oil pump opening and an oil pump flow rate corresponding to the lowest fuel consumption of the engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and corresponding oil temperatures corresponding to each of the measured data arrays is different; The measured data is modeled using preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.

2. The oil pump control method according to claim 1, characterized in that: Determining a corrected opening of the oil pump according to an actual flow rate of the oil pump and a preset flow rate of the oil pump includes: determining an actual flow rate of the oil pump; Calculating the actual flow rate of the oil pump and the preset flow rate of the oil pump to obtain a flow rate difference of the oil pump; The oil pump opening correction table is searched according to the flow difference of the oil pump to obtain the correction opening of the oil pump.

3. The oil pump control method according to claim 1, characterized in that: The preset opening of the oil pump is corrected by using the corrected opening of the oil pump to obtain the required opening of the oil pump, including: The corrected opening of the oil pump and the preset opening of the oil pump are summed to obtain the required opening of the oil pump.

4. The oil pump control method according to claim 1, characterized in that: Before inputting the current parameters of the engine into the oil pump opening model and the oil pump flow model respectively to obtain the preset opening of the oil pump and the preset flow of the oil pump, the method further includes: Get the current parameters of the engine.

5. The oil pump control method according to any one of claims 1 to 4, characterized in that: The oil pump opening model is: , represents the oil pump opening model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump opening model.

6. The oil pump control method according to any one of claims 1 to 4, characterized in that: The oil pump flow model is: , represents the oil pump flow model, Indicates the speed, Indicates torque, Indicates the oil temperature. Represents the coefficients corresponding to each factor or factor combination of the oil pump flow model.

7. A control device for an oil pump, characterized in that: include: An input unit, used to input current parameters of the engine into an oil pump opening model and an oil pump flow model respectively, to obtain a preset opening of the oil pump and a preset flow of the oil pump, wherein the current parameters include: a current speed, a current torque and a current oil temperature; a determination unit, configured to determine a corrected opening of the oil pump according to an actual flow rate of the oil pump and a preset flow rate of the oil pump; a correction control unit, configured to correct a preset opening of the oil pump using the corrected opening of the oil pump to obtain a required opening of the oil pump, so as to control the oil pump to operate according to the required opening of the oil pump; The process of establishing the oil pump opening model and the oil pump flow model includes: Acquire measured data, the measured data comprising at least one set of measured data arrays, the measured data arrays comprising an oil pump opening and an oil pump flow rate corresponding to the lowest fuel consumption of the engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and corresponding oil temperatures corresponding to each of the measured data arrays is different; The measured data is modeled using preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.

8. An electronic device, characterized in that: include: Memory and processor; Wherein, the memory is used to store programs; The processor is used to execute the program, and when the program is executed, it is specifically used to implement the oil pump control method according to any one of claims 1 to 6.

9. A computer storage medium, characterized in that Used to store a computer program, which, when executed, is used to implement the oil pump control method according to any one of claims 1 to 6.

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