CN118653900A - Control method and device of oil pump, electronic equipment and storage medium - Google Patents
Control method and device of oil pump, electronic equipment and storage medium Download PDFInfo
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Abstract
The application discloses a control method, a device, electronic equipment and a storage medium of an oil pump, wherein the method comprises the following steps: the method comprises the steps of respectively inputting current parameters of an engine into an opening model of an oil pump and a flow model of the oil pump to obtain preset opening of the oil pump and preset flow of the oil pump, wherein the current parameters comprise: current rotational speed, current torque, and current oil temperature; determining 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 application uses the corrected opening degree of the oil pump to correct the preset opening degree of the oil pump to obtain the required opening degree of the oil pump so as to control the oil pump to operate according to the required opening degree of the oil pump.
Description
Technical Field
The application relates to the technical field of oil pump control, in particular to a control method and device of an oil pump, electronic equipment and a storage medium.
Background
When the engine works, the driving gear on the cam shaft drives the transmission gear of the oil pump, so that the driving gear fixed on the driving gear shaft rotates, and the driven gear is driven to rotate in the opposite direction, and engine oil is sent to the oil outlet cavity from the oil inlet cavity along the tooth gap and the pump wall. Thus, the oil inlet cavity forms low pressure to generate suction force, and the engine oil in the oil pan is sucked into the oil inlet cavity.
Control of the oil pump is an important part of vehicle control. The main function is to raise the engine oil to a certain pressure and then to force the engine oil to the moving surfaces of the parts of the engine. The existing oil pump control method mainly comprises the steps of directly finding out an oil pressure set value through the rotating speed and the torque of a current engine, and controlling the opening of an oil pump valve through PID to control the oil pressure.
However, the control by only the rotational speed and torque of the engine does not accurately meet the oil pressure requirements of the engine in various operating conditions.
Disclosure of Invention
Based on the defects of the prior art, the application provides a control method, a device, electronic equipment and a storage medium of an oil pump, so as to solve the problem that the prior art cannot accurately realize the oil pressure requirement of an engine in various running states.
In order to achieve the above object, the present application provides the following technical solutions:
the first aspect of the application provides a control method of an oil pump, comprising the following steps:
The method comprises the steps of respectively inputting current parameters of an engine into an opening model of an oil pump and a flow model of the oil pump to obtain preset opening of the oil pump and preset flow of the oil pump, wherein the current parameters comprise: current rotational speed, current torque, and 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;
And correcting the preset opening of the oil pump 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.
Optionally, in the above method for controlling an oil pump, determining the corrected opening of the oil pump according to the actual flow of the oil pump and the preset flow of the oil pump includes:
Calculating the actual flow of the oil pump and the preset flow of the oil pump to obtain a flow difference value of the oil pump;
And searching in a preset oil pump opening correction table according to the flow difference value of the oil pump to obtain the corrected opening of the oil pump.
Optionally, in the above method for controlling an oil pump, correcting the preset opening of the oil pump by using the corrected opening of the oil pump to obtain the required opening of the oil pump, including:
determining the actual flow of the oil pump;
and carrying out summation treatment on the corrected opening of the oil pump and the preset opening of the oil pump to obtain the required opening of the oil pump.
Optionally, in the above method for controlling an oil pump, before 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, the method further includes:
and acquiring the current parameters of the engine.
Optionally, in the above method for controlling an oil pump, the establishing process of the oil pump opening model and the oil pump flow model includes:
Obtaining measured data, wherein the measured data comprises at least one group of measured arrays, the measured arrays comprise oil pump opening and oil pump flow corresponding to the lowest oil consumption of the engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and the corresponding oil temperatures corresponding to the measured arrays is different;
Modeling the measured data by using preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.
Optionally, in the above method for controlling an oil pump, the oil pump opening model is:， Represents the opening model of the oil pump, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And representing coefficients corresponding to each factor or factor combination of the oil pump opening model.
Optionally, in the above method for controlling an oil pump, the oil pump flow model is:， representing the oil pump flow model, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And representing coefficients corresponding to each factor or factor combination of the oil pump flow model.
The second aspect of the present application provides a control device for an oil pump, including:
the input unit is used for respectively inputting current parameters of the engine 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, and the current parameters comprise: current rotational speed, current torque, and current oil temperature;
the determining unit is used for determining the corrected opening of the oil pump according to the actual flow of the oil pump and the preset flow of the oil pump;
And the correction control unit is used for correcting the preset opening of the oil pump by utilizing 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.
Optionally, in the above-mentioned control device for an oil pump, the determining unit is specifically configured to:
determining the actual flow of the oil pump;
Calculating the actual flow of the oil pump and the preset flow of the oil pump to obtain a flow difference value of the oil pump;
And searching in a preset oil pump opening correction table according to the flow difference value of the oil pump to obtain the corrected opening of the oil pump.
Optionally, in the above-mentioned control device for an oil pump, the correction control unit is specifically configured to:
and carrying out summation treatment on the corrected opening of the oil pump and the preset opening of the oil pump to obtain the required opening of the oil pump.
Optionally, in the above-mentioned control device for an oil pump, the control device further includes:
And the acquisition unit is used for acquiring the current parameters of the engine.
Optionally, in the above-mentioned control device for an oil pump, the establishing process of the oil pump opening model and the oil pump flow model includes:
Obtaining measured data, wherein the measured data comprises at least one group of measured arrays, the measured arrays comprise oil pump opening and oil pump flow corresponding to the lowest oil consumption of the engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and the corresponding oil temperatures corresponding to the measured arrays is different;
Modeling the measured data by using preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.
Optionally, in the above-mentioned control device for an oil pump, the oil pump opening model is:， Represents the opening model of the oil pump, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And representing coefficients corresponding to each factor or factor combination of the oil pump opening model.
Optionally, in the above-mentioned control device for an oil pump, the oil pump flow model is:， representing the oil pump flow model, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And representing coefficients corresponding to each factor or factor combination of the oil pump flow model.
A third aspect of the present application provides an electronic device, comprising:
A memory and a processor;
Wherein the memory is used for storing programs;
The processor is configured to execute the program, and when the program is executed, the program is specifically configured to implement the method for controlling an oil pump according to any one of the first aspect disclosure.
A fourth aspect of the present application provides a computer storage medium storing a computer program which, when executed, is adapted to carry out the method of controlling an oil pump according to any one of the first aspect.
The application provides a control method of an oil pump, which is characterized in that current parameters of an engine are respectively input into an oil pump opening model and an oil pump flow model to obtain preset opening of the oil pump and preset flow of the oil pump, wherein the current parameters comprise: current rotational speed, current torque, and current oil temperature; determining 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 application controls the oil pump through the oil pump opening model and the oil pump flow model, and also utilizes the parameters of engine oil temperature except the rotating speed and the torque, thereby ensuring the oil pump to keep optimal performance at all times and accurately realizing the engine oil pressure requirement of the engine in various running states.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present application, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a control method of an oil pump according to an embodiment of the present application;
Fig. 2 is a schematic diagram of a flow chart for establishing an opening model and a flow model of an oil pump according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a flow chart for determining a corrected opening of an oil pump according to an embodiment of the present application;
Fig. 4 is a control logic diagram of a control method of an oil pump according to an embodiment of the present application;
fig. 5 is a flow chart of a control method of an oil pump according to another embodiment of the present application;
Fig. 6 and fig. 7 are schematic structural diagrams of two control devices for an oil pump according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the present application, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
It should be noted that, through research by the inventor, the problem that the prior art cannot accurately realize the oil pressure requirement of the engine under various running states may be represented by: when the engine is in a cold start state, the engine is suddenly stopped due to the fact that the engine oil pressure is over-limited because the engine oil temperature is too low and the engine oil pressure is easy to fluctuate greatly, so that certain harm is caused to the engine, and meanwhile, the real-time optimal performance of the engine cannot be guaranteed.
In this regard, the embodiment of the application provides a control method of an oil pump, so as to solve the problem that the prior art cannot accurately realize the oil pressure requirement of an engine in various running states.
Referring to fig. 1, the control method of the oil pump mainly includes the following steps:
s101, inputting current parameters of an engine into an oil pump opening model and an oil pump flow model respectively to obtain preset opening of the oil pump and preset flow of the oil pump.
Wherein the current parameters include: current rotational speed, current torque, and current oil temperature.
In practical application, the engine and the oil pump belong to the same vehicle, and the oil pump can provide engine oil for the engine for lubrication. The oil pump may be a variable displacement oil pump. Specifically, the control mode of the oil pump can be electric control.
It should be noted that, the oil pump opening model and the oil pump flow model may be pre-established; in some embodiments, the process of establishing the oil pump opening model and the oil pump flow model is as shown in fig. 2, and mainly includes steps S201 and S202:
s201, obtaining measured data.
The measured data comprises at least one set of measured arrays, each set of measured arrays comprises an oil pump opening and an oil pump flow corresponding to the lowest oil consumption of the engine under the corresponding working conditions and the corresponding oil temperatures, and at least one of the working conditions and the corresponding oil temperatures corresponding to each set of measured arrays is different.
In practical application, the actual measurement data can be obtained by a calibration test mode. Specifically, the oil consumption of the engine is minimized by calibrating the opening of the oil pump under different engine oil temperatures under different working conditions, and the current opening of the oil pump and the current flow of the oil pump are recorded to obtain actual measurement arrays of each group. Different conditions indicate different engine speeds and torques.
In the conventional control system of the oil pump using the open loop control, the MAP is generally set based on the rotation speed and the torque to obtain the oil pump opening, and the oil pump actuator is executed according to the set opening. And in the process of acquiring actual measurement data through a calibration test mode, when the test data are acquired, the oil consumption of the engine is minimum by adjusting the opening of the oil pump to set the MAP in different working conditions and different engine oil temperatures, and when the oil consumption of the engine is minimum, the corresponding rotation speed, torque, engine oil temperature, opening of the oil pump and flow of the oil pump are recorded, so that a group of actual measurement arrays can be obtained.
It should be noted that, the method for obtaining the actual measurement arrays of each group in the actual measurement data is not limited to the above, and can be determined according to the application environment and the user requirement or by other existing methods, which are not limited by the present application and are all within the protection scope of the present application.
Exemplary, measured data may be as shown in Table 1-1:
TABLE 1-1 actual measurement data sheet
| Array sequence number | Rotational speed | Torque moment | Engine oil temperature | Opening of engine oil pump | 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 |
S202, modeling the measured data by using preset simulation analysis software to obtain an oil pump opening model and an oil pump flow model.
The preset simulation analysis software can be MATLAB; of course, the method is not limited to this, and other existing simulation analysis software can be used, and the specific type of the preset simulation analysis software is not limited, and the method and the device are all within the protection scope of the application.
Taking a preset simulation analysis software as MATLAB as an example, the oil pump opening model may be:， Represents an opening model of the oil pump, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,Coefficients corresponding to various factors or factor combinations of the oil pump opening model are represented; the oil pump flow model may be:， Represents the flow model of the oil pump, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And the coefficients corresponding to the factors or the factor combinations of the oil pump flow model are represented.
In particular, the method comprises the steps of,AndRepresenting the influence duty ratio of each factor on the opening of the oil pump, wherein the larger the coefficient is, the larger the influence is; in the practical application of the present invention,AndThe specific value of the engine can be obtained by fitting corresponding simulation analysis software according to data actually collected by different engine models.
Further, after MATLAB is introduced, a mathematical formula of the opening degree of the oil pump based on the rotation speed, the torque and the oil temperature and a mathematical formula of the flow rate of the oil pump based on the rotation speed, the torque and the oil temperature can be fitted, so that corresponding factors or coefficients can be obtained.
The coefficients corresponding to the factors in the opening model and the flow model of the oil pump of different engine types are slightly different due to different engine type configurations, and the coefficient corresponding to each factor is determined according to the actual collected data in practical application.
The more the number of the actually measured arrays in the actually measured data is, the higher the accuracy of the oil pump opening model and the oil pump flow model obtained through fitting of simulation analysis software is, and the closer the accuracy is to the actual condition; of course, the larger the data volume is, the more the calculation amount is increased in the fitting process of the simulation analysis software, and the time consumption for establishing the oil pump opening model and the oil pump flow model is increased.
In practical application, the current parameters of the engine can be used as input factors and respectively input into the oil pump opening model and the oil pump flow model, so that the preset opening of the oil pump and the preset flow of the oil pump can be obtained. 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.
S102, determining the corrected opening of the oil pump according to the actual flow of the oil pump and the preset flow of the oil pump.
In practical application, after the actual flow of the oil pump and the preset flow of the oil pump are obtained, mathematical operation can be performed, and then the corrected opening of the oil pump is determined in a relation curve of the oil pump flow and the oil pump opening based on the operation result.
In some embodiments, the process of executing step S102 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 is shown in fig. 3, and mainly includes steps S301 to S303:
s301, determining the actual flow of the oil pump.
In practical application, 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 through real-time reading of an electronic control unit (Electronic Control Unit, ECU) in the vehicle.
S302, calculating the actual flow of the oil pump and the preset flow of the oil pump to obtain a flow difference value of the oil pump.
In practical application, the difference between the preset flow of the oil pump and the actual flow of the oil pump can be processed to obtain the flow difference value of the oil pump.
Assuming that a represents a preset flow of the oil pump and B represents an actual flow of the oil pump, a flow difference C of the oil pump can be obtained by the following formula: c=a-B.
And S303, searching in a preset oil pump opening correction table according to the flow difference value of the oil pump to obtain the corrected opening of the oil pump.
In practical application, the larger the opening of the oil pump is, the larger the oil pump flow is, so that the corresponding oil pump correction opening under each oil pump flow difference value can be determined according to the relation between the opening and the oil pump flow.
Specifically, the preset oil pump opening correction table may include oil pump correction openings corresponding to a plurality of flow difference values, and the oil pump correction opening corresponding to each flow difference value may be obtained through a calibration test.
After the model of the engine is determined, the opening of the oil pump may be adjusted by using different flow rate differences as calibration values, so as to obtain the corrected opening of the oil pump corresponding to each flow rate difference.
For example, the preset oil pump opening correction table may be as shown in tables 1-2:
Table 1-2 flow difference and oil pump corrected opening degree correspondence table
| Flow 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 |
And S103, correcting the preset opening of the oil pump 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.
In practical application, the corrected opening of the oil pump and the preset opening of the oil pump can be summed to obtain the required opening of the oil pump.
Assuming that D represents a corrected opening degree of the oil pump, E represents a preset opening degree of the oil pump, and the required opening degree F of the oil pump can be obtained by the following formula: f=d+e.
The corrected opening of the oil pump is determined by the difference between the preset flow and the actual flow of the oil pump, so that the corrected opening of the oil pump is utilized to correct the preset opening of the oil pump, and the obtained required opening of the oil pump is more closely related to the oil pressure requirement in the current engine running state, so that the performances of the oil pump and the engine are optimal.
In summary, a control logic diagram of the control method of the oil pump may be shown in fig. 4. The oil pump opening model and the oil pump flow model are obtained by acquiring data simulation analysis such as oil pump opening, oil pump flow and the like corresponding to optimal oil consumption under different working conditions and different oil temperatures. After determining the required opening of the oil pump, the oil pump control system may be controlled to control the operation of the oil pump according to the required opening.
Based on the above principle, in the control method for an oil pump provided in this embodiment, current parameters of an engine are respectively input into an opening model of the oil pump and a flow model of the oil pump, and a preset opening of the oil pump and a preset flow of the oil pump are obtained, where the current parameters include: current rotational speed, current torque, and current oil temperature; determining 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 application controls the oil pump through the oil pump opening model and the oil pump flow model, and also utilizes the parameters of engine oil temperature except the rotating speed and the torque, thereby ensuring the oil pump to keep optimal performance at all times and accurately realizing the engine oil pressure requirement of the engine in various running states.
The control method of the engine oil pump fully considers the influence of the engine oil temperature, can avoid the sudden stop of the engine caused by the overrun of the engine oil pressure due to the fact that the engine oil temperature is too low and the large fluctuation of the engine oil pressure is easy to cause when the engine is in a cold start state, and simultaneously ensures the real-time optimal performance of the engine. That is, the control method of the oil pump provided by the application can solve the problems of sudden stop, performance deterioration and the like of special working conditions in the traditional control mode.
The method is characterized in that the opening correction is carried out by using the actual engine oil pressure, the opening correction is carried out by using the difference between the actual flow of the engine oil pump and the preset flow of the engine oil pump, and the engine oil pump opening model and the engine oil pump flow model are also utilized, so that the influence of the engine speed, the engine torque and the engine oil temperature in the control process is comprehensively considered, and the control precision of the engine oil pump can be higher.
On the basis of the foregoing embodiments, optionally, the control method of an oil pump according to another embodiment of the present application may further include step S401, before the current parameters of the engine are input to 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 in step S101, respectively, as shown in fig. 5:
s401, acquiring current parameters of an engine.
In practical application, the current torque, the current rotating speed and the current engine oil temperature of the engine can be obtained through the real-time reading of the ECU; specifically, the current engine oil temperature of the engine can be obtained by reading an engine oil temperature sensor mounted on the engine in real time through the ECU.
Of course, the present parameters of the engine can be obtained by other existing methods, but the present application is not limited thereto, and the present application is within the scope of protection of the present application.
In this embodiment, the current parameter of the engine may be obtained by obtaining the current parameter of the engine, so as to facilitate execution of the control method of the subsequent oil pump.
Optionally, another embodiment of the present application further provides a control device for an oil pump, referring to fig. 6, where the control device for an oil pump mainly includes:
an input unit 101, configured to input current parameters of an engine to an opening model of an oil pump and a flow model of the oil pump, to obtain a preset opening of the oil pump and a preset flow of the oil pump, where the current parameters include: current rotational speed, current torque, and current oil temperature;
a determining unit 102, configured to determine a corrected opening of the oil pump according to an actual flow of the oil pump and a preset flow of the oil pump;
And the correction control unit 103 is used for correcting the preset opening of the oil pump 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.
In some embodiments, the determining unit 102 is specifically configured to, when 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:
determining the actual flow of the oil pump;
calculating the actual flow of the oil pump and the preset flow of the oil pump to obtain a flow difference value of the oil pump;
And searching in a preset oil pump opening correction table according to the flow difference value of the oil pump to obtain the corrected opening of the oil pump.
In some embodiments, the correction control unit 103 is specifically configured to, when correcting the preset opening of the oil pump by using the corrected opening of the oil pump to obtain the required opening of the oil pump:
and carrying out summation treatment on the corrected opening of the oil pump and the preset opening of the oil pump to obtain the required opening of the oil pump.
In some embodiments, as shown in fig. 7, the control device of the oil pump further includes:
an acquisition unit 201 for acquiring current parameters of the engine.
In some embodiments, the process of establishing the oil pump opening model and the oil pump flow model includes:
obtaining measured data, wherein the measured data comprises at least one group of measured arrays, the measured arrays comprise oil pump opening and oil pump flow corresponding to the lowest oil consumption of an engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and the corresponding oil temperatures corresponding to each measured array is different;
modeling the measured data by using preset simulation analysis software to obtain an oil pump opening model and an oil pump flow model.
In some embodiments, the oil pump opening model is:
， Represents an opening model of the oil pump, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And the coefficients corresponding to the factors or the factor combinations of the oil pump opening model are represented.
In some embodiments, the oil pump flow model is:， Represents the flow model of the oil pump, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And the coefficients corresponding to the factors or the factor combinations of the oil pump flow model are represented.
In this embodiment, the input unit 101 is configured to input current parameters of an engine to an opening model of an oil pump and a flow model of the oil pump, so as to obtain a preset opening of the oil pump and a preset flow of the oil pump, where the current parameters include: current rotational speed, current torque, and current oil temperature; the determining unit 102 is configured to determine a corrected opening of the oil pump according to an actual flow of the oil pump and a preset flow of the oil pump; the correction control unit 103 is configured to correct the preset opening of the oil pump by 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.
It should be noted that, the specific working process of each unit provided in the above embodiment of the present application may refer to the corresponding steps in the above method embodiment, which is not described herein.
Optionally, another embodiment of the present application provides an electronic device, as shown in fig. 8, including:
A memory 801 and a processor 802.
Wherein the memory 801 is used for storing programs.
The processor 802 is configured to execute a program stored in the memory 801, and when the program is executed, the program is specifically configured to implement the control method of the oil pump provided in any one of the embodiments described above.
It should be noted that, the specific implementation process may correspondingly refer to the implementation of the method for controlling the oil pump provided by the above method embodiment, which is not described herein again.
Alternatively, another embodiment of the present application provides a computer storage medium storing a computer program for implementing the method for controlling an oil pump according to any one of the above method embodiments when the computer program is executed.
It should be noted that, the specific implementation process may correspondingly refer to the implementation of the method for controlling the oil pump provided by the above method embodiment, which is not described herein again.
Where the computer storage media in embodiments of the application include both permanent and non-permanent, removable and non-removable media, the storage of information may be accomplished by any method or technology. The information may be computer readable instructions, data structures, modules of a program, 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 disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by the computing device. Computer-readable media, as defined herein, does not include transitory computer-readable media (transmission media), such as modulated data signals and carrier waves.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The control method of the oil pump is characterized by comprising the following steps:
The method comprises the steps of respectively inputting current parameters of an engine into an opening model of an oil pump and a flow model of the oil pump to obtain preset opening of the oil pump and preset flow of the oil pump, wherein the current parameters comprise: current rotational speed, current torque, and 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;
And correcting the preset opening of the oil pump 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.
2. The control method of an oil pump according to claim 1, wherein 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:
determining the actual flow of the oil pump;
Calculating the actual flow of the oil pump and the preset flow of the oil pump to obtain a flow difference value of the oil pump;
And searching in a preset oil pump opening correction table according to the flow difference value of the oil pump to obtain the corrected opening of the oil pump.
3. The control method of an oil pump according to claim 1, characterized in that correcting the preset opening of the oil pump by using the corrected opening of the oil pump to obtain the required opening of the oil pump, comprising:
and carrying out summation treatment on the corrected opening of the oil pump and the preset opening of the oil pump to obtain the required opening of the oil pump.
4. The control method of an oil pump according to claim 1, characterized by further comprising, before inputting current parameters of an engine to an oil pump opening model and an oil pump flow model, respectively, obtaining a preset opening of the oil pump and a preset flow of the oil pump:
and acquiring the current parameters of the engine.
5. The control method of an oil pump according to any one of claims 1 to 4, characterized in that the establishing process of the oil pump opening model and the oil pump flow model includes:
Obtaining measured data, wherein the measured data comprises at least one group of measured arrays, the measured arrays comprise oil pump opening and oil pump flow corresponding to the lowest oil consumption of the engine under corresponding working conditions and corresponding oil temperatures, and at least one of the working conditions and the corresponding oil temperatures corresponding to the measured arrays is different;
Modeling the measured data by using preset simulation analysis software to obtain the oil pump opening model and the oil pump flow model.
6. The control method of an oil pump according to claim 5, wherein the oil pump opening model is:， Represents the opening model of the oil pump, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And representing coefficients corresponding to each factor or factor combination of the oil pump opening model.
7. The control method of an oil pump according to claim 5, wherein the oil pump flow rate model is:， representing the oil pump flow model, The rotation speed is indicated by the number of revolutions,The torque is indicated as being the sum of the torques,The temperature of the engine oil is indicated,And representing coefficients corresponding to each factor or factor combination of the oil pump flow model.
8. A control device of an oil pump, characterized by comprising:
the input unit is used for respectively inputting current parameters of the engine 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, and the current parameters comprise: current rotational speed, current torque, and current oil temperature;
the determining unit is used for determining the corrected opening of the oil pump according to the actual flow of the oil pump and the preset flow of the oil pump;
And the correction control unit is used for correcting the preset opening of the oil pump by utilizing 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.
9. An electronic device, comprising:
A memory and a processor;
Wherein the memory is used for storing programs;
The processor is configured to execute the program, and when the program is executed, the program is specifically configured to implement the control method of the oil pump according to any one of claims 1 to 7.
10. A computer storage medium storing a computer program which, when executed, is adapted to carry out the method of controlling an oil pump according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411118256.2A CN118653900A (en) | 2024-08-15 | 2024-08-15 | Control method and device of oil pump, electronic equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411118256.2A CN118653900A (en) | 2024-08-15 | 2024-08-15 | Control method and device of oil pump, electronic equipment and storage medium |
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| CN118653900A true CN118653900A (en) | 2024-09-17 |
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| CN202411118256.2A Pending CN118653900A (en) | 2024-08-15 | 2024-08-15 | Control method and device of oil pump, electronic equipment and storage medium |
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| FR2972488A1 (en) * | 2011-03-10 | 2012-09-14 | Peugeot Citroen Automobiles Sa | THERMAL ENGINE LUBRICATING SYSTEM COMPRISING A VARIABLE CYLINDER OIL PUMP |
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| CN115217576A (en) * | 2021-11-12 | 2022-10-21 | 广州汽车集团股份有限公司 | Oil pump electromagnetic valve control method, vehicle-mounted controller and automobile |
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2024
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| FR2972488A1 (en) * | 2011-03-10 | 2012-09-14 | Peugeot Citroen Automobiles Sa | THERMAL ENGINE LUBRICATING SYSTEM COMPRISING A VARIABLE CYLINDER OIL PUMP |
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| CN107725135A (en) * | 2017-11-21 | 2018-02-23 | 吉林大学 | Electrodeless adjustable type displacement-variable oil pump |
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