Control method, device and equipment for vehicle lubricating oil, storage medium and vehicle

Abstract

The invention discloses a vehicle lubricating oil control method, device and equipment, a storage medium and a vehicle, and belongs to the technical field of vehicle control. The control method for the vehicle lubricating oil comprises the steps that a first control quantity of an oil pump is mapped into a first oil pressure predicted value of the vehicle lubricating oil at a first moment; correcting the first oil pressure predicted value according to the oil resistance of the vehicle lubricating oil, the first flow true value and the first oil pressure predicted value; determining a second control quantity according to an expected value of the vehicle lubricating oil at a second moment and the corrected first oil pressure predicted value, wherein the second moment is after the first moment; and controlling the oil pressure true value of the vehicle lubricating oil at the second time based on the second control quantity. According to the method, the hardware cost of the vehicle can be reduced by mapping the first control quantity into the first oil pressure predicted value, and meanwhile, the first flow true value serves as the feedforward of the vehicle lubricating oil control system, so that the reliability of controlling the vehicle lubricating oil is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle control, and in particular relates to a vehicle lubricating oil control method, device, equipment, storage medium and vehicle. BACKGROUND

[0002] Vehicle lubricating oil refers to lubricating oil, such as engine oil, that flows through an oil pump of a vehicle lubricating system and is delivered to other subsystems of the vehicle through an oil channel network of the vehicle lubricating system. The vehicle lubricating oil can be used to provide lubrication, cooling, cleaning, sealing, hydraulic pressure and the like for other subsystems of the vehicle, in particular, an engine.

[0003] Maintaining proper vehicle lubricating oil pressure is the basis for ensuring normal operation of engine components. In related technologies, control of vehicle lubricating oil pressure often relies on a pressure sensor of the vehicle lubricating oil, which needs to monitor vehicle lubricating oil pressure in real time through the pressure sensor and maintain stability of the vehicle lubricating oil pressure through an output adjustment system of the oil pump.

[0004] However, in the above method, the pressure sensor of the vehicle lubricating oil is prone to aging over time, and the accuracy of the pressure sensor is disturbed by external factors such as temperature and vibration, resulting in a certain degree of error in the vehicle lubricating oil pressure detected by the pressure sensor, which affects the reliability of vehicle lubricating oil control. SUMMARY

[0005] The present application provides a vehicle lubricating oil control method, device, equipment, storage medium and vehicle to solve the technical problems existing in related technologies. Specifically, the following technical solutions are included.

[0006] In a first aspect, the present application provides a vehicle lubricating oil control method, which includes: mapping a first control amount of an oil pump to a first oil pressure prediction value of vehicle lubricating oil at a first time, the first control amount being a control amount input by the oil pump at the first time; correcting the first oil pressure prediction value according to an oil resistance of the vehicle lubricating oil, a first flow real value and the first oil pressure prediction value, the first flow real value being a flow of the vehicle lubricating oil collected at the first time; determining a second control amount according to an expected value of the vehicle lubricating oil at a second time and the corrected first oil pressure prediction value, the second control amount being a control amount input by the oil pump at the second time, and the second time being after the first time; and controlling an oil pressure real value of the vehicle lubricating oil at the second time based on the second control amount.

[0007] In some possible implementation manners, the correcting the first oil pressure prediction value according to the oil resistance of the vehicle lubricating oil, the first flow real value and the first oil pressure prediction value comprises: determining a first flow prediction value of the vehicle lubricating oil at the first time according to the oil resistance and the first oil pressure prediction value; and correcting the first oil pressure prediction value according to the first flow prediction value and the first flow real value.

[0008] In some possible implementation manners, the determining the second control quantity according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value comprises: correcting the expected value; and determining the second control quantity according to the corrected first oil pressure prediction value and the expected value.

[0009] In some possible implementation manners, the correcting the expected value comprises: correcting the expected value according to a related variable of an engine in the vehicle.

[0010] In some possible implementation manners, the determining the second control quantity according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value comprises: determining a difference between the expected value and the corrected first oil pressure prediction value; and mapping the difference to the second control quantity according to a first working characteristic of the oil pump, the first working characteristic being used to describe a change trend of an input control quantity of the oil pump under different oil pressures of the vehicle lubricating oil output by the oil pump.

[0011] In some possible implementation manners, the mapping the first control quantity of the oil pump to the first oil pressure prediction value of the vehicle lubricating oil at the first time comprises: mapping the first control quantity to the first oil pressure prediction value according to a second working characteristic of the oil pump, the second working characteristic being used to describe a change trend of the oil pressure of the vehicle lubricating oil output by the oil pump under different control quantities input by the oil pump.

[0012] In a second aspect, the application provides a control device for vehicle lubricating oil, the device comprising a mapping module, a correction module, a determination module and an execution module; the mapping module is configured to map a first control amount of an oil pump to a first oil pressure prediction value of the vehicle lubricating oil at a first time, the first control amount being a control amount input to the oil pump at the first time; the correction module is configured to correct the first oil pressure prediction value according to an oil resistance of the vehicle lubricating oil, a first flow real value and the first oil pressure prediction value, the first flow real value being a flow of the vehicle lubricating oil collected at the first time; the determination module is configured to determine a second control amount according to an expected value of the vehicle lubricating oil at a second time and the corrected first oil pressure prediction value, the second control amount being a control amount input to the oil pump at the second time, and the second time being after the first time; and the execution module is configured to control an oil pressure real value of the vehicle lubricating oil at the second time based on the second control amount.

[0013] In some possible implementation manners, when correcting the first oil pressure prediction value according to the oil resistance of the vehicle lubricating oil, the first flow real value and the first oil pressure prediction value, the correction module is configured to determine a first flow prediction value of the vehicle lubricating oil at the first time according to the oil resistance and the first oil pressure prediction value; and correct the first oil pressure prediction value according to the first flow prediction value and the first flow real value.

[0014] In some possible implementation manners, when determining the second control amount according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, the determination module is configured to correct the expected value; and determine the second control amount according to the corrected first oil pressure prediction value and the expected value.

[0015] In some possible implementation manners, when correcting the expected value, the determination module is configured to correct the expected value according to a related variable of an engine in the vehicle.

[0016] In some possible implementation manners, when determining the second control amount according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, the determination module is configured to determine a difference between the expected value and the corrected first oil pressure prediction value; and map the difference to the second control amount according to a first working characteristic of the oil pump, the first working characteristic being used to describe a change trend of the input control amount when the oil pump outputs the vehicle lubricating oil with different oil pressures.

[0017] In some possible implementation manners, the mapping module is configured to map the first control amount of the oil pump to the first oil pressure prediction value of the vehicle lubricating oil at the first time according to a second working characteristic of the oil pump, the second working characteristic being used to describe a variation trend of the oil pressure of the vehicle lubricating oil output by the oil pump under different input control amounts.

[0018] In a third aspect, the present application provides an electronic device for determining control of vehicle lubricating oil, comprising a memory, at least one program instruction for controlling vehicle lubricating oil being stored on the memory; and a processor, the program instruction being executed by the processor to enable the vehicle to implement the method in the first aspect or any possible implementation manner of the first aspect.

[0019] In a fourth aspect, the present application provides a computer program (product), comprising computer program / instruction, the computer program / instruction being executed by a processor to enable the vehicle to implement the method in the first aspect or any possible implementation manner of the first aspect.

[0020] In a fifth aspect, the present application provides a computer-readable storage medium, the computer-readable storage medium storing program instruction for controlling vehicle lubricating oil, the program instruction being executed by one or more processors to enable the vehicle to implement the method in the first aspect or any possible implementation manner of the first aspect.

[0021] In a sixth aspect, the present application provides a vehicle, the vehicle comprising the device in the second aspect or any possible implementation manner of the second aspect.

[0022] The technical scheme provided by the present application has at least the following beneficial effects:

[0023] The technical scheme provided by the present application has at least the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0025] Figure 1 is a schematic diagram of an implementation scenario provided by the embodiments of the present application.

[0026] Figure 2 is a flow chart of a control method of vehicle lubricating oil provided by the embodiments of the present application.

[0027] Figure 3 is a structural schematic diagram of a control device of vehicle lubricating oil provided by the embodiments of the present application.

[0028] Figure 4 is a structural schematic diagram of an electronic device for controlling vehicle lubricating oil provided by the embodiments of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort fall within the scope of protection of the present application.

[0030] The exemplary embodiments will be described in detail herein with reference to the drawings. Unless otherwise specified, the same numbers in different drawings indicate the same or similar elements. The implementations described in the following exemplary embodiments are not meant to represent all implementations consistent with the present application. Rather, they are merely examples with which those skilled in the art can implement an apparatus and method consistent with some aspects of the present application as detailed in the appended claims.

[0031] Figure 1 is a schematic diagram of an implementation scenario provided by the embodiments of the present application. Referring to Figure 1 , the implementation scenario provided by the embodiments of the present application includes a vehicle lubricating system 11 and a control unit 12.

[0032] The vehicle lubrication system 11 for example comprises an oil pump and an oil passage network, wherein the oil pump can be used to output different oil pressures of the vehicle lubricating oil according to different input control quantities, but is not limited to this. The oil passage network is used to provide a carrier for the flow of the vehicle lubricating oil, so that the vehicle lubricating oil can be delivered to each friction pair in the engine or other subsystems of the vehicle. The control quantity is for example the size of the control current of the motor in the oil pump, the duty cycle, etc., and the friction pair is used to indicate two directly contacting, relatively moving parts in the vehicle, such as the crankshaft main journal and the main bearing bush, the connecting rod big end and the connecting rod bearing bush, etc., which are not limited in this regard.

[0033] Optionally, according to different actual application scenarios, the vehicle lubrication system for example further comprises one or more of an oil sump, a filter press, a suction filter, an oil cooler, a pressure relief valve, etc.

[0034] The control unit 12 can be in communication connection with the vehicle lubrication system in a wired or wireless manner, so that the control unit 12 can send different control quantities to the oil pump in the vehicle lubrication system 11 according to the demand for the vehicle lubricating oil pressure during the driving of the vehicle, thereby adjusting the vehicle lubricating oil pressure in the oil passage network of the vehicle lubrication system 11.

[0035] Optionally, the control unit 12 is for example a terminal controller carried in the vehicle, and can also be a server, a server cluster composed of multiple servers, or a cloud computing service center.

[0036] Those skilled in the art should understand that the above-mentioned vehicle lubrication system 11 and control unit 12 are only examples, and other existing or future vehicle lubrication systems and control units that can be applicable to the present application should also be included within the protection scope of the present application, and are hereby included by reference.

[0037] Figure 2 is a flow chart of the control method of the vehicle lubricating oil provided by the embodiment of the present application, which can be executed by the control unit shown in Figure 1 , and the present application does not make any limitation in this regard. Referring to Figure 2 , the control method of the vehicle lubricating oil provided by the embodiment of the present application can comprise steps S210-S240.

[0038] Step S210: mapping a first control quantity of the oil pump into a first oil pressure prediction value of the vehicle lubricating oil at a first time, wherein the first control quantity is a control quantity input by the oil pump at the first time.

[0039] Exemplarily, the oil pump is, for example, a device or structure used for pressurizing vehicle lubricating oil in a vehicle lubricating system, which can be used for but not limited to outputting vehicle lubricating oil with different oil pressures according to different input control quantities. The input control quantity of the oil pump is, for example, the size of the control current of the motor in the oil pump, or the duty cycle of the motor in the oil pump. The oil pressure of the vehicle lubricating oil is, for example, the vertical pressure generated by the vehicle lubricating oil flowing in the vehicle lubricating system on the wall of the oil channel network of the vehicle lubricating system.

[0040] As described above, the vehicle lubricating system can include, for example, but not limited to, an oil pump and an oil channel network, wherein the oil pump can be used for but not limited to outputting vehicle lubricating oil with different oil pressures according to different input control quantities, and the oil channel network can be used for but not limited to providing a carrier for the flow of vehicle lubricating oil, so that the vehicle lubricating oil can be delivered to each friction pair in the engine or other subsystems of the vehicle. In other words, there is a certain linear relationship between the input control quantity of the oil pump and the output vehicle lubricating oil.

[0041] In this case, the method of mapping the first control quantity of the oil pump to the first oil pressure prediction value of the vehicle lubricating oil at the first time point, for example, includes: mapping the first control quantity to the first oil pressure prediction value according to the second working characteristic of the oil pump. Wherein, the second working characteristic is used to describe the trend of the oil pressure of the output vehicle lubricating oil of the oil pump under the condition that the input control quantity is different.

[0042] Optionally, the second working characteristic of the oil pump is, for example, a mathematical model used to describe the mathematical relationship between the input control quantity of the oil pump and the oil pressure of the output vehicle lubricating oil, so that the oil pressure of the output vehicle lubricating oil of the oil pump at any time point can be predicted according to the input control quantity of the oil pump at the time point, for example, the first control quantity input by the oil pump at the first time point is mapped to the first oil pressure prediction value of the vehicle lubricating oil at the first time point.

[0043] In some embodiments, the mathematical model used to describe the mathematical relationship between the input control quantity of the oil pump and the oil pressure of the output vehicle lubricating oil can be, for example, as shown in the following formula (1):

[0044]

[0045] Wherein, p(t) is the oil pressure output by the oil pump, u(t) is the input control quantity of the oil pump, is the rate of change of the oil pressure output by the oil pump with respect to time, A is the leakage coefficient of the vehicle lubricating system, and B is the gain coefficient of the oil pump, which is used to indicate the ability of the oil pump to pressurize the oil. Wherein, the leakage coefficient A and the gain coefficient B can be adjusted according to different actual application scenarios, which are not limited in this respect by the present application.

[0046] In the method, by establishing a mathematical model for describing a mathematical relationship between a control quantity of an oil pump input and an oil pressure of vehicle lubricating oil output, the collected control quantity of the oil pump input can be mapped to the oil pressure of the vehicle lubricating oil without changing a hardware structure of the vehicle, thereby reducing a hardware cost of the vehicle.

[0047] In actual application scenarios, due to uncertainty of a driving condition of the vehicle and wear of parts in the vehicle, a mapping relationship between the control quantity described by the mathematical model and the oil pressure of the vehicle lubricating oil can drift, that is, does not conform to an actual input control quantity of the oil pump and an actual output oil pressure. In view of this, in order to ensure accuracy of the first oil pressure prediction value, the mathematical model can be modified based on factors that can cause the mathematical model to drift in the actual application scenarios. For example, based on a nonlinear relationship between an oil flow rate output by the oil pump and a rotational speed, wear of parts of the vehicle lubricating system, the driving condition of the vehicle, and the like, an additional nonlinear function term is added to the mathematical model to supplement the mathematical model.

[0048] In step S220, the first oil pressure prediction value is modified according to an oil resistance of the vehicle lubricating oil, a first flow rate real value, and the first oil pressure prediction value. The first flow rate real value is a flow rate of the vehicle lubricating oil collected at the first time.

[0049] For example, the flow rate of the vehicle lubricating oil is used to indicate a volume of the vehicle lubricating oil passing through the vehicle lubricating system per unit time. The first flow rate real value of the vehicle lubricating system at the first time is collected by, for example, a Hall pulse flow rate sensor or any other type of sensor that can be used to collect the oil flow rate. The type of the sensor is not limited in the present application.

[0050] The oil resistance of the vehicle lubricating oil is used to indicate a resistance of the vehicle lubricating oil flowing in an oil channel network of the vehicle lubricating system. The oil resistance of the vehicle lubricating system is, for example, a constant pre-stored in the vehicle system according to characteristics of the vehicle lubricating system and the vehicle lubricating oil, or a periodically updated value obtained by online calibration based on related data in the vehicle system. For example, the oil resistance of the vehicle lubricating oil used at the first time is calibrated based on a third flow rate real value of the flow rate of the vehicle lubricating oil collected at a third time and a third prediction value of the vehicle lubricating oil at the third time, and is stored in the system after calibration and used at the first time. The third time is before the first time. In other words, in a case where the control system of the vehicle lubricating oil includes multiple times of controlling the vehicle lubricating oil, the oil resistance used at any time of the multiple times is calibrated based on a real value of the oil flow rate and a prediction value of the oil pressure collected at a time before the any time.

[0051] The calibration method of the oil resistance of the vehicle lubricating oil can be, for example, a recursive least square method, or any other type of method that can calibrate the oil resistance according to the actual value of the oil flow and the predicted value of the oil pressure, and the application does not limit this aspect. In the calibration process of the oil resistance, if the current time is the first time, an initial value can be set for the oil resistance, and the value of the initial value can be adjusted according to the actual application, and the application does not limit this aspect.

[0052] In some embodiments, the method for correcting the first oil pressure predicted value according to the oil resistance of the vehicle lubricating system, the first flow actual value and the first oil pressure predicted value, for example, includes: determining a first flow predicted value of the oil flow at the first time according to the oil resistance and the first oil pressure predicted value; and correcting the first oil pressure predicted value according to the first flow predicted value and the first flow actual value.

[0053] For example, the method for determining a first flow predicted value of the oil flow at the first time according to the oil resistance of the vehicle lubricating oil and the first oil pressure predicted value can refer to formula (2) as shown below:

[0054]

[0055] wherein Q k is the first flow predicted value of the vehicle lubricating oil at the first time, R k-1 is the oil resistance of the vehicle lubricating oil calibrated at the third time, P k is the first oil pressure predicted value of the vehicle lubricating oil at the first time.

[0056] The method for correcting the first oil pressure predicted value according to the first flow predicted value and the first flow actual value can refer to formula (3) as shown below:

[0057]

[0058] wherein p(t) is the first oil pressure predicted value of the vehicle lubricating oil at the first time, is the rate of change of the first oil pressure predicted value of the vehicle lubricating oil at the first time with respect to time, A is the leakage coefficient of the vehicle lubricating system, and B is the gain coefficient of the oil pump. u(t) is the first control amount input by the oil pump at the first time, and y(t) is the first flow actual value of the flow of the vehicle lubricating oil collected at the first time, is the first flow predicted value of the vehicle lubricating oil at the first time determined according to the oil resistance of the vehicle lubricating oil and the first oil pressure predicted value, that is, the result output by formula (2). The leakage coefficient A and the gain coefficient B can be adjusted according to different actual application scenarios, and the application does not limit this aspect.

[0059] Step S230, determining a second control amount according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, the second control amount being a control amount inputted by the oil pump at the second time, and the second time being after the first time.

[0060] Exemplarily, the expected value of the vehicle lubricating oil at the second time is used to indicate an expected value of the engine in the vehicle for the vehicle lubricating oil at the second time. Wherein, the expected value is for example a MAP (mapping) diagram or a one-dimensional table calibrated by the manufacturer of the engine according to the working performance of the engine in the production stage, and is usually burned into the ECU (electric control unit) or instrument of the vehicle to indicate a trend of the expected value of the engine for the vehicle lubricating oil with the engine speed, load and oil temperature.

[0061] In some embodiments, determining the second control amount according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value comprises: determining a difference between the expected value and the corrected first oil pressure prediction value; and mapping the difference into the second control amount according to the first working characteristic of the oil pump, the first working characteristic being used to describe a change trend of the inputted control amount of the oil pump under different outputted oil pressures of the vehicle lubricating oil.

[0062] In some possible cases, the method of mapping the difference into the second control amount according to the first working characteristic of the oil pump is for example realized by a sliding mode control. Wherein, the sliding mode control is used to indicate a control strategy of defining a sliding surface so that the inputted control amount of the oil pump is adjusted along the sliding surface, thereby eliminating the error between the actual value of the oil pressure of the vehicle lubricating oil outputted by the oil pump at the second time and the expected value of the vehicle lubricating oil at the second time. The expression of the sliding surface can refer to the following formula (4):

[0063]

[0064] Wherein, e(t) is the difference between the expected value and the corrected first oil pressure prediction value; C and λ are design parameters, which determine the convergence speed and dynamic performance of the control system of the vehicle lubricating oil, and can be adjusted according to actual application.

[0065] As described above, the expected value of the vehicle lubricating oil at the second time is used to indicate the expected value of the engine in the vehicle for the vehicle lubricating oil at the second time. Considering that in actual application scenarios, due to unknown disturbances that can exist in the control system of the vehicle lubricating oil, such as sudden changes in the temperature of the vehicle lubricating oil, voltage drops of the vehicle power supply, aging or dilution of the vehicle lubricating oil, wear of related parts, etc., which can cause the leakage coefficient of the vehicle lubricating system to increase, the spring of the pressure relief valve in the vehicle lubricating system to fatigue, air bubbles or cavitation to occur at the inlet of the oil pump, etc., resulting in the expected value of the vehicle lubricating oil at the second time can drift. In view of this, in some embodiments, the second control quantity is determined according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, including: correcting the expected value; determining the second control quantity according to the corrected first oil pressure prediction value and the expected value.

[0066] The method of correcting the expected value of the vehicle lubricating oil at the second time, for example, includes: correcting the expected value according to related variables of the engine in the vehicle. For example, the related variables of the engine include but are not limited to the engine speed, load, temperature of the vehicle lubricating oil on the vehicle engine side, the working environment side of the vehicle engine, such as the temperature of the vehicle lubricating oil, the power supply voltage, the aging degree of the oil pump, etc. The method of correcting the expected value of the vehicle lubricating oil at the second time, for example, is to determine a plus-minus number or a multiplier factor according to the related variables, in order to correct the expected value of the vehicle lubricating oil at the second time.

[0067] In the above method, by taking the difference between the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value as an influencing factor when determining the second control quantity input by the oil pump at the second time, and by converting the difference between the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value into the second control quantity through the method of sliding mode control, it can be guaranteed that the real value of the oil pressure of the vehicle lubricating oil in the vehicle lubricating system at the second time always follows the expected value at the second time, which is beneficial to reduce the system error and improve the reliability of the vehicle lubricating oil pressure control.

[0068] Step S240, controlling the real value of the oil pressure of the vehicle lubricating oil at the second time based on the second control quantity.

[0069] Optionally, the second control quantity is the input of the oil pump at the second time, which can be used for but is not limited to determining the oil pressure of the vehicle lubricating oil output by the oil pump at the second time. The real value of the oil pressure of the vehicle lubricating oil at the second time corresponds to the second control quantity input by the oil pump at the second time, and is constrained by the first working characteristic of the oil pump.

[0070] The technical scheme provided by the embodiment of the application has the following beneficial effects. On the one hand, by mapping the first control amount of the oil pump at the first time into the first oil pressure prediction value of the vehicle lubricating oil at the first time, the influence of the fluctuation of the detection accuracy of the sensor on the oil pressure detection of the vehicle lubricating oil can be avoided, the reliability of the oil pressure detection of the vehicle lubricating oil is improved, and the hardware cost of the vehicle is reduced. On the other hand, considering that the control system of the vehicle lubricating oil can be affected by unknown disturbances, in order to avoid the deviation between the first oil pressure prediction value and the actual value of the vehicle lubricating oil from increasing continuously due to the unknown disturbances, the first oil pressure prediction value is corrected by the first flow real value collected, the first flow real value is used as the feedforward of the control system of the vehicle lubricating oil, the robustness of the control system of the vehicle lubricating oil is improved, and then the oil pressure of the vehicle lubricating oil at the second time is controlled based on the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, which is beneficial to improve the reliability when the vehicle lubricating oil is controlled.

[0071] In some possible implementation manners, the application further provides a control device of vehicle lubricating oil. Figure 3 FIG. 1 is a structural schematic diagram of a control device of vehicle lubricating oil provided by an embodiment of the application. Figure 3 The control device of vehicle lubricating oil provided by the embodiment of the application comprises a mapping module 310, a correction module 320, a determination module 330 and an execution module 340.

[0072] The mapping module 310 is configured to map the first control amount of the oil pump into the first oil pressure prediction value of the vehicle lubricating oil at the first time, and the first control amount is the control amount input by the oil pump at the first time.

[0073] The correction module 320 is configured to correct the first oil pressure prediction value according to the oil resistance of the vehicle lubricating oil, the first flow real value and the first oil pressure prediction value, and the first flow real value is the flow of the vehicle lubricating oil collected at the first time.

[0074] The determination module 330 is configured to determine the second control amount according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, the second control amount is the control amount input by the oil pump at the second time, and the second time is after the first time.

[0075] The execution module 340 is configured to control the oil pressure real value of the vehicle lubricating oil at the second time based on the second control amount.

[0076] In some possible implementation manners, the correction module 320, when correcting the first oil pressure prediction value according to the oil resistance of the vehicle lubricating oil, the first flow real value and the first oil pressure prediction value, is configured to: determine a first flow prediction value of the vehicle lubricating oil at the first time according to the oil resistance and the first oil pressure prediction value; and correct the first oil pressure prediction value according to the first flow prediction value and the first flow real value.

[0077] In some possible implementation manners, the determination module 330, when determining the second control quantity according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, is configured to: correct the expected value; and determine the second control quantity according to the corrected first oil pressure prediction value and the expected value.

[0078] In some possible implementation manners, the determination module 330, when correcting the expected value, is configured to: correct the expected value according to a related variable of the engine in the vehicle.

[0079] In some possible implementation manners, the determination module 330, when determining the second control quantity according to the expected value of the vehicle lubricating oil at the second time and the corrected first oil pressure prediction value, is configured to: determine a difference between the expected value and the corrected first oil pressure prediction value; and map the difference to the second control quantity according to a first working characteristic of the oil pump, the first working characteristic being used to describe a change trend of an input control quantity of the oil pump under different conditions of an output oil pressure of the vehicle lubricating oil.

[0080] In some possible implementation manners, the mapping module 310, when mapping the first control quantity of the oil pump to the first oil pressure prediction value of the vehicle lubricating oil at the first time, is configured to: map the first control quantity to the first oil pressure prediction value according to a second working characteristic of the oil pump, the second working characteristic being used to describe a change trend of an output oil pressure of the vehicle lubricating oil under different conditions of an input control quantity of the oil pump.

[0081] It should be understood that the vehicle lubricating oil control device provided by the above-mentioned embodiments and the vehicle lubricating oil control method embodiments belong to the same concept, and the specific implementation process is described in detail in the vehicle lubricating oil control method embodiments.

[0082] In some possible implementation manners, the vehicle lubricating oil control device provided by the above-mentioned embodiments and the vehicle lubricating oil control method embodiments belong to the same concept, and the specific implementation process is described in detail in the vehicle lubricating oil control method embodiments. Figure 4 is a structural schematic diagram of an electronic device for controlling vehicle lubricating oil provided by an embodiment of the present application, referring to Figure 4 The electronic device for controlling vehicle lubricating oil provided by the embodiment of the present application comprises the following structure.

[0083] a memory 410 having stored thereon at least one program instruction for controlling lubricating oil of a vehicle. A processor 420, which executes the above program instruction, causes the vehicle to implement the steps of the method described above and its multiple embodiments. Figure 2 The processor 420 can be one or more types of processors, including but not limited to a DSP (digital signal processor), an ASIC (application specific integrated circuit), a FPGA (field-programmable gate array) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, etc. depending on the implementation, and its number can be determined according to actual needs.

[0084] In yet some possible implementation, the present application also provides a computer program (product) comprising computer program / instructions, which are executed by a processor to cause the vehicle to implement the steps of the method described above and its multiple embodiments. Figure 2 In yet some possible implementation, the present application also provides a computer program (product) comprising computer program / instructions, which are executed by a processor to cause the vehicle to implement the steps of the method described above and its multiple embodiments.

[0085] In yet some possible implementation, the present application also provides a computer readable storage medium having stored thereon program instructions for controlling lubricating oil of a vehicle, which, when executed by one or more processors, cause the vehicle to implement the steps of the method described above and its multiple embodiments. Figure 2 The computer readable storage medium can be a readable signal medium or a readable storage medium. The readable storage medium may, for example, but not limited to, be an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or apparatus, or any combination of the above. More specific examples (a non-exhaustive list) of the readable storage medium include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0086] In yet some possible implementation, the present application also provides a vehicle comprising Figure 3 a lubricating oil control device of a vehicle described above and its multiple embodiments.

[0087] It should also be noted that the terms "first", "second" and the like, if any, in the description and in the claims of the present application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of such terms is interchangeable under appropriate circumstances such that the embodiments of the present application described herein are, for example, capable of orderly or chronological implementation, reverse chronologically implementation, simultaneously implementation, or other modified implementations, unless otherwise explicitly provided. The embodiments described in the following example implementations do not represent all implementations consistent with the present application. Instead, they are merely examples with which one can practice the present application as detailed in the appended claims.

[0088] The term "and / or", within the scope of the embodiments of the present application, merely describes an associated relationship with associated objects, which means that there can be three relationships, for example, A and / or B, which can represent three cases: A exists alone, A and B exist together, and B exists alone.

[0089] The above is only to facilitate those skilled in the art to understand the technical solutions of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for controlling vehicle lubricating oil, characterized in that, The method includes: The first control quantity of the oil pump is mapped to the first oil pressure prediction value of the vehicle lubricating oil at the first moment, and the first control quantity is the control quantity input to the oil pump at the first moment. The first oil pressure prediction value is corrected based on the oil resistance of the vehicle lubricating oil, the true value of the first flow rate, and the predicted value of the first oil pressure. The true value of the first flow rate is the flow rate of the vehicle lubricating oil collected at the first moment. The second control quantity is determined based on the expected value of the vehicle lubricating oil at the second moment and the corrected first oil pressure prediction value. The second control quantity is the control quantity input by the oil pump at the second moment, and the second moment is after the first moment. The actual oil pressure of the vehicle lubricating oil at the second moment is controlled based on the second control quantity.

2. The method according to claim 1, characterized in that, The step of correcting the first oil pressure prediction value based on the oil resistance of the vehicle lubricating oil, the actual value of the first flow rate, and the first oil pressure prediction value includes: The first predicted flow rate of the vehicle lubricating oil at the first moment is determined based on the oil resistance and the first predicted oil pressure. The first oil pressure prediction value is corrected based on the first flow rate prediction value and the first actual flow rate value.

3. The method according to claim 1, characterized in that, The step of determining the second control quantity based on the expected value of the vehicle lubricating oil at the second moment and the corrected first oil pressure prediction value includes: The expected value is corrected; The second control quantity is determined based on the corrected first oil pressure prediction value and the expected value.

4. The method according to claim 3, characterized in that, The correction of the expected value includes: The expected value is corrected based on the relevant variables of the engine in the vehicle.

5. The method according to claim 1, characterized in that, The step of determining the second control quantity based on the expected value of the vehicle lubricating oil at the second moment and the corrected first oil pressure prediction value includes: Determine the difference between the expected value and the corrected first oil pressure prediction value; The difference is mapped to the second control quantity based on the first operating characteristic of the oil pump. The first operating characteristic is used to describe the changing trend of the input control quantity when the oil pressure of the output vehicle lubricating oil is different.

6. The method according to claim 1, characterized in that, The mapping of the first control quantity of the oil pump to the first predicted oil pressure value of the vehicle lubricating oil at the first moment includes: The first control quantity is mapped to the first oil pressure prediction value according to the second operating characteristic of the oil pump. The second operating characteristic is used to describe the changing trend of the oil pressure of the vehicle lubricating oil output by the oil pump under different input control quantities.

7. A device for controlling vehicle lubricating oil, characterized in that, The device includes a mapping module, a correction module, a determination module, and an execution module; The mapping module is configured to map the first control quantity of the oil pump to the first oil pressure prediction value of the vehicle lubricating oil at the first moment, wherein the first control quantity is the control quantity input to the oil pump at the first moment. The correction module is configured to correct the first oil pressure prediction value based on the oil resistance of the vehicle lubricating oil, the first flow rate true value, and the first oil pressure prediction value, wherein the first flow rate true value is the flow rate of the vehicle lubricating oil collected at the first moment. The determining module is configured to determine a second control quantity based on the expected value of the vehicle lubricating oil at a second moment and the corrected first oil pressure prediction value. The second control quantity is the control quantity input by the oil pump at a second moment, and the second moment is after the first moment. The execution module is configured to control the actual oil pressure value of the vehicle lubricating oil at the second moment based on the second control quantity.

8. An electronic device, characterized in that, include: A memory, wherein the memory stores program instructions for controlling vehicle lubricating oil; as well as, A processor, when the program instructions are executed by the processor, causes the vehicle to perform the method described in any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, A computer-readable storage medium stores program instructions for controlling vehicle lubricating oil, which, when executed by one or more processors, cause the vehicle to perform the method described in any one of claims 1-6.

10. A vehicle, characterized in that, The vehicle includes the vehicle lubricating oil control device as described in claim 7.

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