CN115405433A - Method, device, equipment and medium for controlling oil supply pressure of an engine - Google Patents

Abstract

This application discloses a method, device, device and medium for controlling the oil supply pressure of an engine. In order to ensure that the oil supply pressure of the engine does not affect the normal operation of the engine, the oil supply pressure of the engine can be controlled by the following methods, including: obtaining the engine's oil supply pressure operating conditions, and based on the operating conditions of the engine, a preset condition for controlling the fuel supply pressure of the engine is obtained, and the preset condition indicates the corresponding condition of the fuel supply pressure when the engine is running normally. Therefore, the fuel supply pressure of the engine can be controlled based on the preset condition to ensure normal operation of the engine. Through the method for controlling the oil supply pressure of the engine provided in the present application, the preset conditions for controlling the oil supply pressure can be determined in combination with the operating conditions of the engine, so as to control the oil supply pressure according to the preset conditions and realize the normal operation of the engine.

Description

Method, device, equipment and medium for controlling oil supply pressure of an engine

technical field

The present application relates to the technical field of engine control, and in particular to a method, device, equipment and medium for controlling oil supply pressure of an engine.

Background technique

Due to the limited layout space above the vehicle chassis for the bodywork engine, the fuel tank of the engine can only be arranged under the vehicle chassis. Usually, in order to meet the requirements of the long running time of the engine, the capacity of the fuel tank is relatively large, which increases the height difference between the liquid level of the fuel tank and the fuel injection pump of the engine, resulting in less oil that can be pumped by the fuel injection pump, lowering the oil inlet pressure of the engine, and affecting the performance of the engine. normal operation.

Contents of the invention

In view of this, the present application provides a method, device, device and medium for controlling the oil supply pressure of the engine, so as to control the oil supply pressure of the engine to ensure the normal operation of the engine.

In a first aspect, the present application provides a method for controlling the oil supply pressure of an engine, the method comprising:

Obtain the operating conditions of the engine;

Obtaining a preset condition for controlling the fuel supply pressure of the engine based on the operating condition, the preset condition indicating a condition corresponding to the fuel supply pressure when the engine is running normally;

An oil supply pressure of the engine is controlled based on the preset condition.

In a possible implementation manner, the operating conditions include: before the engine is started and after the engine is started.

In a possible implementation manner, when the operating condition is before the engine is started, the obtaining the preset condition for controlling the oil supply pressure of the engine based on the operating condition includes:

Obtain the relationship between the altitude of the external environment, the liquid level of the fuel tank, and the oil supply pressure;

The controlling the oil supply pressure of the engine based on the preset condition includes:

Obtain the altitude of the current external environment and the current liquid level of the fuel tank;

Based on the association relationship, the fuel supply pressure corresponding to the altitude of the current external environment and the current liquid level of the fuel tank is determined.

In a possible implementation manner, when the operating condition is after the engine is started, the obtaining the preset condition for controlling the oil supply pressure of the engine based on the operating condition includes:

Obtaining a preset fuel supply pressure range corresponding to the engine, where the preset fuel supply pressure range indicates the range of the fuel supply pressure corresponding to the normal operation of the engine;

The controlling the oil supply pressure of the engine based on the preset condition includes:

obtaining the current fuel supply pressure when the engine is running;

When the current oil supply pressure is not within the preset oil supply pressure range, the current oil supply pressure is adjusted so that the adjusted oil supply pressure is within the preset oil supply pressure range.

In a possible implementation manner, the adjusting the current oil supply pressure so that the adjusted oil supply pressure is within the preset oil supply pressure range includes:

Adjust the pressure value corresponding to the electronic pressure relief valve of the fuel pump, so that the adjusted pressure value is within the preset fuel supply pressure range.

In a second aspect, the present application provides a device for controlling oil supply pressure of an engine, the device comprising:

a first acquisition unit, configured to acquire the operating conditions of the engine;

A second acquiring unit, configured to acquire a preset condition for controlling the fuel supply pressure of the engine based on the operating condition, the preset condition indicating a condition corresponding to the fuel supply pressure when the engine is running normally;

A control unit, configured to control the oil supply pressure of the engine based on the preset condition.

In a possible implementation manner, when the operating condition is before the engine is started, the second acquisition unit is specifically configured to acquire the difference between the altitude of the external environment, the liquid level of the fuel tank, and the oil supply pressure. relationship between

The control unit is specifically configured to obtain the altitude of the current external environment and the current liquid level of the fuel tank; based on the association relationship, determine the altitude of the current external environment and the current liquid level of the fuel tank The corresponding oil supply pressure.

In a possible implementation manner, when the operating condition is after the engine is started, the second acquiring unit is specifically configured to acquire a preset oil supply pressure range corresponding to the engine, and the preset Let the oil supply pressure range represent the range of the oil supply pressure corresponding to the normal operation of the engine;

The control unit is specifically used to obtain the current oil supply pressure when the engine is running; when the current oil supply pressure is not within the preset oil supply pressure range, adjust the current oil supply pressure so that the adjustment The final oil supply pressure is within the preset oil supply pressure range.

In a third aspect, the present application provides a device for controlling oil supply pressure of an engine, and the device includes: a memory and a processor;

The memory is used to store related program codes;

The processor is configured to call the program code to execute the method for controlling the fuel supply pressure of the engine described in any one of the implementation manners of the first aspect above.

In a fourth aspect, the present application provides a computer-readable storage medium, the computer-readable storage medium is used to store a computer program, and the computer program is used to execute the engine power supply described in any implementation manner of the first aspect above. Oil pressure control method.

This shows that the application has the following beneficial effects:

In the above implementation of the present application, in order to ensure that the oil supply pressure of the engine does not affect the normal operation of the engine, the oil supply pressure of the engine can be controlled in the following ways, including: obtaining the operating conditions of the engine, and based on the operating conditions of the engine , obtaining a preset condition for controlling the oil supply pressure of the engine, the preset condition indicating the condition of the corresponding oil supply pressure when the engine is running normally. Therefore, the fuel supply pressure of the engine can be controlled based on the preset condition to ensure normal operation of the engine. Through the method for controlling the oil supply pressure of the engine provided in the present application, the preset conditions for controlling the oil supply pressure can be determined in combination with the operating conditions of the engine, so as to control the oil supply pressure according to the preset conditions and realize the normal operation of the engine.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments provided in the present application , for those skilled in the art, other drawings can also be obtained according to these drawings.

FIG. 1 is a flow chart of a method for controlling oil supply pressure of an engine provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a control system for an engine oil supply pressure provided by an embodiment of the present application;

Fig. 3 is a schematic diagram of an engine oil supply pressure control device provided by an embodiment of the present application;

Fig. 4 is a schematic diagram of an engine oil supply pressure control device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. The described embodiments are only exemplary implementations of the present application, not all implementations. Those skilled in the art may combine the embodiments of the present application to obtain other embodiments without performing creative work, and these embodiments are also within the protection scope of the present application.

Due to the limited layout space above the vehicle chassis for the bodywork engine, the fuel tank of the engine can only be arranged under the vehicle chassis. Usually, in order to meet the requirements of the long running time of the engine, the capacity of the fuel tank is relatively large, which increases the height difference between the liquid level of the fuel tank and the fuel injection pump of the engine, resulting in less oil that can be pumped by the fuel injection pump, lowering the oil inlet pressure of the engine, and affecting the performance of the engine. normal operation.

In order to solve the above problems, a fuel pump can be added to the fuel supply pipeline between the fuel tank and the fuel injection pump. Increase the fuel supply pressure to the engine. However, the current fuel supply pressure of the fuel pump is determined according to the height difference between the highest point and the lowest point of the fuel tank liquid level and the engine fuel injection pump, which is a fixed value. When used in plain areas, this value can meet the requirements of the engine’s oil inlet pressure, but as the altitude increases, the atmospheric pressure gradually decreases, and the fuel supply pressure of the fuel pump cannot meet the requirements of the engine’s oil inlet pressure. If the fuel supply pressure of the fuel pump is set too low, the fuel inlet pressure of the engine will be too low, and the fuel intake will be insufficient, and the engine power will be insufficient. In severe cases, the engine will stop immediately; if the fuel supply pressure of the fuel pump is set too high, As a result, the oil inlet pressure of the engine is too high, and the amount of oil inlet is too much, which will cause the engine to flush the valve, trigger the torque limit and power limit, and cannot meet the normal use requirements of the engine.

Based on this, the embodiment of the present application provides a method for controlling the oil supply pressure of the engine, so as to control the oil supply pressure of the engine to ensure the normal operation of the engine. In specific implementation, the fuel supply pressure of the engine can be controlled in the following manner, the operating conditions of the engine can be obtained, and based on the operating conditions of the engine, the preset conditions for controlling the fuel supply pressure of the engine can be obtained, and the preset conditions indicate that the engine is running normally When the corresponding oil supply pressure conditions. Therefore, the fuel supply pressure of the engine can be controlled based on the preset condition to ensure normal operation of the engine. Through the method for controlling the oil supply pressure of the engine provided in the present application, the preset conditions for controlling the oil supply pressure can be determined in combination with the operating conditions of the engine, so as to control the oil supply pressure according to the preset conditions and realize the normal operation of the engine.

In order to facilitate the understanding of the technical solution provided by the present application, a specific introduction will be given below in conjunction with the accompanying drawings.

Referring to FIG. 1 , FIG. 1 is a flow chart of a method for controlling the oil supply pressure of an engine provided by an embodiment of the present application.

The method can be executed by a controller of the engine, wherein the controller can be an electronic device or other devices. The method may include the steps of:

S101: Obtain the operating conditions of the engine.

Since the oil supply pressure required by the engine to achieve normal operation is different under different operating conditions, in order to more accurately control the oil supply pressure of the engine to ensure the normal operation of the engine under different operating conditions, it is first necessary to obtain the current engine pressure Operating conditions. Among them, the fuel supply pressure of the engine means the fuel supply pressure of the fuel pump in the engine.

Optionally, the operating conditions may include: before the engine is started and after the engine is started. That is, the embodiment of the present application can control the fuel supply pressure of the engine according to whether the engine is started, so as to realize that the engine can start normally and run normally after starting.

S102: Obtain a preset condition for controlling the oil supply pressure of the engine based on the operating condition.

After the operating condition of the engine is determined, corresponding preset conditions for controlling the oil supply pressure of the engine can be obtained according to the operating conditions, wherein the preset conditions indicate the conditions of the corresponding oil supply pressure when the engine is running normally. That is, different operating conditions of the engine correspond to different oil supply pressure control strategies.

S103: Control the oil supply pressure of the engine based on a preset condition.

After obtaining the preset condition corresponding to the operating condition of the engine, the fuel supply pressure of the engine can be controlled according to the preset condition.

According to the above embodiments, the operating conditions of the engine can be divided into before the engine starts and after the engine starts. The following will introduce the control principle of the oil supply pressure for the operating conditions before and after the engine start respectively.

Before the engine starts, in order to ensure that the engine can start normally with fuel, it is necessary to control the fuel supply pressure of the engine within a reasonable range. Specifically, in this operating condition, the preset condition for controlling the fuel supply pressure of the engine may be the correlation between the altitude of the external environment, the liquid level of the fuel tank, and the fuel supply pressure, that is, the The altitude above sea level and the liquid level of the oil tank determine the corresponding oil supply pressure. Among them, when the altitude of the external environment is higher, the atmospheric pressure gradually decreases. Compared with the plain environment, the fuel inlet pressure applied to the fuel injection pump becomes smaller. Therefore, it is necessary to increase the fuel supply pressure of the fuel pump to ensure that the fuel injection pump operates There is sufficient oil inlet pressure under the action of oil pressure and atmospheric pressure. That is, the higher the altitude of the external environment, the greater the fuel supply pressure of the fuel pump that needs to be controlled. When the liquid level of the fuel tank is relatively low, the amount of fuel pumped under the same fuel supply pressure will be less, so it is necessary to increase the fuel supply pressure of the fuel pump at this time, so that the fuel pump can draw sufficient fuel. The oil pipeline is provided to the fuel injection pump to ensure that the fuel injection pump has enough fuel to inject into the engine cylinder, so that the engine can start normally. That is, the lower the liquid level of the fuel tank is, the higher the fuel supply pressure of the fuel pump needs to be controlled. Therefore, after obtaining the correlation, the altitude of the current external environment of the engine and the current liquid level of the fuel tank can be obtained, and then the fuel supply pressure corresponding to the current altitude and the current liquid level of the fuel tank can be determined based on the correlation, Thereby, the fuel pump can be controlled to provide the fuel supply pressure for the engine.

Optionally, the correlation can be expressed in the form of a graph or in the form of a table. For example, when the relationship is a graph, you can set the abscissa to be the altitude, and the ordinate to be the opposite number of the fuel tank liquid level. The oil supply pressure corresponding to the altitude, with the increase of the altitude or the increase of the opposite number of the liquid level of the fuel tank (that is, the decrease of the liquid level of the fuel tank), the oil supply pressure represented by the curve shows an increasing trend. Or, when the association relationship is a table, the row of the table can be the altitude, the column of the table can be the opposite number of the fuel tank liquid level height, and the cell in the table represents a certain altitude in the row and a certain tank liquid in the column. Oil supply pressure corresponding to bit height.

When the engine is running, the preset oil supply pressure range for the normal operation of the engine can be determined in advance according to the type of the engine and combined with historical experience. Then, after the engine is started, the oil supply pressure of the engine can be controlled in real time according to the preset oil supply pressure range. Specifically, when the engine starts running, the controller can obtain the current oil supply pressure of the engine, and judge whether the current oil supply pressure is within the preset oil supply pressure range, if so, there is no need to adjust the oil supply pressure, and the engine can operate normally If not, you need to adjust the oil supply pressure of the engine so that the adjusted oil supply pressure is within the preset oil supply pressure range. Wherein, the fuel supply pressure of the engine can be obtained by measuring with a pressure sensor.

In a possible implementation manner, the fuel supply pressure of the fuel pump can be changed by adjusting the electronic pressure relief valve of the fuel pump, and the pressure value corresponding to the electronic pressure relief valve represents the fuel supply pressure of the fuel pump. When the current fuel supply pressure of the engine is lower than the minimum value of the preset fuel supply pressure range, the pressure value corresponding to the electronic pressure relief valve can be increased to the target pressure value, thereby increasing the fuel supply pressure of the fuel pump to the target pressure. Wherein, the target pressure is within the preset oil supply pressure range, the present embodiment does not limit the specific value of the target pressure, for example, the target pressure can be set as the average of the maximum oil supply pressure and the minimum oil supply pressure in the preset oil supply pressure range value. When the current fuel supply pressure of the engine is greater than the maximum value of the preset fuel supply pressure range, the pressure value corresponding to the electronic pressure relief valve can be reduced to the target pressure value, thereby reducing the fuel supply pressure of the fuel pump to the target pressure, so as to Ensure the normal operation of the engine.

Through the method for controlling the oil supply pressure of the engine provided in this application, the preset conditions for controlling the oil supply pressure can be determined in combination with the operating conditions of the engine, so that the oil supply pressure can be controlled according to the preset conditions, and it can also be real-time during the operation of the engine. Adjust the oil supply pressure of the engine to achieve the normal operation of the engine.

The following will combine a specific application scenario to introduce the control principle of the engine oil supply pressure.

Referring to FIG. 2 , FIG. 2 is a schematic diagram of an engine oil supply pressure control system provided by an embodiment of the present application.

The system 200 includes: an engine 201, a controller 202, a fuel pump 203, and a fuel tank 204;

Wherein, the controller 202 can control the start of the engine 201 through the start button. Before the engine 201 starts, the controller 202 can obtain the current altitude of the external environment and the current liquid level of the fuel tank 204, and then according to the altitude of the external environment, the fuel tank The relationship between the liquid level at 204 and the fuel supply pressure determines the fuel supply pressure corresponding to the current altitude and the current liquid level of the fuel tank 204, so that the fuel pump 203 can extract the fuel from the fuel tank 204 according to the determined fuel supply pressure The fuel is supplied to the fuel injection pump of the engine 201 through the fuel supply pipeline, that is, the fuel supply pressure in the fuel supply pipeline is determined to be the fuel supply pressure.

After the fuel pump 203 provides the determined fuel supply pressure for the engine 201, the controller 202 can control the engine 201 to start through the start button. During the operation of the engine 201, the controller 202 can obtain the fuel supply pressure of the fuel pump 203 in real time, and judge whether the actual fuel supply pressure is within the preset fuel supply pressure range. If not, the electronic pressure relief of the fuel pump 203 can be controlled. Valve to change the fuel supply pressure of the fuel pump 203. For example, when the current fuel supply pressure of the engine 201 is lower than the minimum value of the preset fuel supply pressure range, the pressure value corresponding to the electronic pressure relief valve can be increased to the target pressure value, thereby increasing the fuel supply pressure of the fuel pump 203 to the target pressure ; When the current fuel supply pressure of the engine 201 is greater than the maximum value of the preset fuel supply pressure range, the pressure value corresponding to the electronic pressure relief valve can be reduced to the target pressure value, thereby reducing the fuel supply pressure of the fuel pump 203 to the target pressure, so as to ensure the normal operation of the engine 201.

Through the engine oil supply pressure control system provided by this application, the fuel pump can be controlled to provide different oil supply pressures for the engine in combination with the operating conditions of the engine, and the engine oil supply pressure can also be adjusted in real time during the engine running process. for the normal operation of the engine.

Based on the above method embodiments, the embodiments of the present application further provide a device for controlling the oil supply pressure of the engine. Referring to FIG. 3 , FIG. 3 is a schematic diagram of an engine oil supply pressure control device provided by an embodiment of the present application.

The device 300 includes: a first acquisition unit 301, a second acquisition unit 302, and a control unit 303;

The first acquisition unit 301 is configured to acquire the operating conditions of the engine;

The second acquisition unit 302 is configured to acquire a preset condition for controlling the fuel supply pressure of the engine based on the operating condition, the preset condition indicates a condition corresponding to the fuel supply pressure when the engine is running normally;

A control unit 303, configured to control the fuel supply pressure of the engine based on the preset condition.

In a possible implementation manner, the operating conditions include: before the engine is started and after the engine is started.

In a possible implementation manner, when the operating condition is before the engine is started, the second acquisition unit 302 is specifically configured to acquire the altitude of the external environment, the liquid level of the fuel tank, and the oil supply pressure relationship between

The control unit 303 is specifically configured to obtain the altitude of the current external environment and the current liquid level of the fuel tank; based on the association relationship, determine the altitude of the current external environment and the current liquid level of the fuel tank The oil supply pressure corresponding to the altitude.

In a possible implementation manner, when the operating condition is after the engine is started, the second acquiring unit 302 is specifically configured to acquire a preset fuel supply pressure range corresponding to the engine, the The preset oil supply pressure range indicates the range of oil supply pressure corresponding to the normal operation of the engine;

The control unit 303 is specifically configured to obtain the current oil supply pressure when the engine is running; when the current oil supply pressure is not within the preset oil supply pressure range, adjust the current oil supply pressure so that The adjusted oil supply pressure is within the preset oil supply pressure range.

In a possible implementation manner, the control unit 303 is specifically configured to adjust the pressure value corresponding to the electronic pressure relief valve of the fuel pump, so that the adjusted pressure value is within the preset fuel supply pressure range.

The beneficial effects of the device for controlling the oil supply pressure of the engine provided by the embodiments of the present application can be referred to the above method embodiments, and will not be repeated here.

Based on the above embodiments, the embodiments of the present application further provide a device for controlling oil supply pressure of an engine. Referring to FIG. 4 , FIG. 4 is a schematic diagram of an engine oil supply pressure control device provided by an embodiment of the present application.

The device 400 includes: a memory 401 and a processor 402;

The memory 401 is used to store related program codes;

The processor 402 is configured to call the program code to execute the method for controlling the oil supply pressure of the engine described in the method embodiment above.

In addition, an embodiment of the present application also provides a computer-readable storage medium, which is used to store a computer program, and the computer program is used to execute the method for controlling the oil supply pressure of the engine described in the above-mentioned method embodiment .

It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment focuses on the differences from other embodiments, and the same and similar parts of each embodiment can be referred to each other. In particular, for the system or device embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and for relevant parts, please refer to the descriptions of the method embodiments. The device embodiments described above are only illustrative, and the units or modules described as separate components may or may not be physically separated, and the components shown as units or modules may or may not be physical modules, that is It may be located in one place, or may be distributed to multiple network units, and some or all of the units or modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without creative effort.

It should be understood that in this application, "at least one (item)" means one or more, and "multiple" means two or more. "And/or" is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, "A and/or B" can mean: only A exists, only B exists, and A and B exist at the same time , where A and B can be singular or plural. The character "/" generally indicates that the contextual objects are an "or" relationship. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one item (piece) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c ", where a, b, c can be single or multiple.

It should also be noted that in this article, relational terms such as first and second etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations Any such actual relationship or order exists between. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

The steps of the methods or algorithms described in connection with the embodiments disclosed herein may be directly implemented by hardware, software modules executed by a processor, or a combination of both. Software modules can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other Any other known storage medium.

The above 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 general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the application. Therefore, the present application will not 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. A control method for engine fuel supply pressure, characterized in that the method comprises: Obtain the operating conditions of the engine; Obtaining a preset condition for controlling the fuel supply pressure of the engine based on the operating condition, the preset condition indicating a condition corresponding to the fuel supply pressure when the engine is running normally; An oil supply pressure of the engine is controlled based on the preset condition. 2 . The method according to claim 1 , wherein the operating conditions include: before the engine is started and after the engine is started. 3 . 3. The method according to claim 2, wherein when the operating condition is before the engine is started, the preset condition for controlling the oil supply pressure of the engine is obtained based on the operating condition ,include: Obtain the relationship between the altitude of the external environment, the liquid level of the fuel tank, and the oil supply pressure; The controlling the oil supply pressure of the engine based on the preset condition includes: Obtain the altitude of the current external environment and the current liquid level of the fuel tank; Based on the association relationship, the fuel supply pressure corresponding to the altitude of the current external environment and the current liquid level of the fuel tank is determined. 4. The method according to claim 2, wherein when the operating condition is after the engine is started, the preset condition for controlling the oil supply pressure of the engine is obtained based on the operating condition ,include: Obtaining a preset fuel supply pressure range corresponding to the engine, where the preset fuel supply pressure range represents a range of fuel supply pressure corresponding to the normal operation of the engine; The controlling the oil supply pressure of the engine based on the preset condition includes: obtaining the current fuel supply pressure when the engine is running; When the current oil supply pressure is not within the preset oil supply pressure range, the current oil supply pressure is adjusted so that the adjusted oil supply pressure is within the preset oil supply pressure range. 5. The method according to claim 4, wherein the adjusting the current oil supply pressure so that the adjusted oil supply pressure is within the preset oil supply pressure range comprises: Adjust the pressure value corresponding to the electronic pressure relief valve of the fuel pump, so that the adjusted pressure value is within the preset fuel supply pressure range. 6. A control device for engine oil supply pressure, characterized in that the device comprises: a first acquisition unit, configured to acquire the operating conditions of the engine; A second acquiring unit, configured to acquire a preset condition for controlling the fuel supply pressure of the engine based on the operating condition, the preset condition indicating a condition corresponding to the fuel supply pressure when the engine is running normally; A control unit, configured to control the oil supply pressure of the engine based on the preset condition. 7. The device according to claim 6, wherein when the operating condition is before the engine is started, the second acquisition unit is specifically used to acquire the altitude of the external environment and the liquid level of the fuel tank The relationship between altitude and oil supply pressure; The control unit is specifically configured to obtain the altitude of the current external environment and the current liquid level of the fuel tank; based on the association relationship, determine the altitude of the current external environment and the current liquid level of the fuel tank The corresponding oil supply pressure. 8. The device according to claim 7, wherein when the operating condition is after the engine is started, the second acquiring unit is specifically configured to acquire the preset oil supply corresponding to the engine pressure range, the preset oil supply pressure range indicates the range of oil supply pressure corresponding to the normal operation of the engine; The control unit is specifically used to obtain the current oil supply pressure when the engine is running; when the current oil supply pressure is not within the preset oil supply pressure range, adjust the current oil supply pressure so that the adjustment The final oil supply pressure is within the preset oil supply pressure range. 9. A control device for engine fuel supply pressure, characterized in that the device comprises: a memory and a processor; The memory is used to store related program codes; The processor is used to call the program code to execute the method for controlling the oil supply pressure of the engine according to any one of claims 1 to 5. 10. A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store a computer program, and the computer program is used to implement the control of the engine oil supply pressure according to any one of claims 1 to 5. Control Method.

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