CN112302757B - Engine oil pump control method, device and system and engine - Google Patents

Abstract

The application provides an engine oil pump control method, device, system and engine. The method obtains the working inclination angle of the vehicle and the oil pressure of the engine; determines the preset critical inclination angle and preset pressure of the engine, and the preset critical inclination angle and preset pressure It is the critical inclination angle and critical pressure when the first oil pump of the engine is emptied; according to the working inclination angle, oil pressure, preset critical inclination angle and preset pressure, the working state of the second oil pump is controlled to make the lubrication system supply oil normally, according to the vehicle The inclination angle of the engine and the oil pressure of the engine can control whether the second oil pump of the engine is turned on. The second oil pump of the engine is only turned on under the preset working conditions determined according to the inclination angle of the vehicle and the oil pressure of the engine, so that there is no need for multiple oil pumps to be turned on at the same time. Reduced engine power loss.

Description

Engine oil pump control method, device, system and engine

technical field

The present invention relates to the technical field of engines, and in particular, to an engine oil pump control method, device, system and engine.

Background technique

During the driving process of the vehicle, the engine of the vehicle needs to suck oil from the oil pan through the oil pump to ensure the normal driving of the vehicle. When the vehicle is driving on a smooth road, the oil level of the engine remains level, and the engine oil pump can absorb oil normally. When driving up and downhill or the vehicle requires a large inclination angle, a large amount of oil collects in the small head of the oil pan, and the oil suction port of the oil filter of the oil pump cannot fully penetrate the oil, so that the oil pump sucks empty, causing the engine to scratch and pull the cylinder. , affecting the safety performance and service life of the vehicle.

In the related art, in order to adapt to the change of the inclination angle of the vehicle, the engine usually adopts a dual oil pump lubrication system of the main oil pump and the auxiliary oil pump, which integrates the main oil pump and the auxiliary oil pump. They are located in the big end and the small end of the oil pan respectively, and the main oil pump and the auxiliary oil pump jointly absorb oil to avoid the occurrence of oil pump suction.

However, in the prior art, the integrated main oil pump and auxiliary oil pump work together, and the power loss of the engine is too large.

SUMMARY OF THE INVENTION

The present application provides an engine oil pump control method, device, system and engine, so as to solve the technical problem in the prior art that the integrated main oil pump and auxiliary oil pump work together and the power loss of the engine is too large.

In a first aspect, the present application provides an engine oil pump control method, comprising:

Get the working inclination of the vehicle and the oil pressure of the engine;

determining a preset critical inclination angle and a preset pressure of the engine, where the preset critical inclination angle and the preset pressure are the critical inclination angle and the critical pressure when the first oil pump of the engine is emptied;

The working state of the second oil pump is controlled according to the working inclination angle, the oil pressure, the preset critical inclination angle and the preset pressure, so that the lubrication system supplies oil normally.

Here, when controlling the oil pump of the engine of the vehicle in the embodiment of the present application, the inclination angle of the vehicle and the oil pressure of the engine are first obtained, and according to the inclination angle of the vehicle and the oil pressure of the engine, it is possible to control whether the second oil pump of the engine is turned on. The state of the second oil pump can make the lubricating system supply oil normally. The first oil pump here can be the main oil pump of the engine. It is turned on when the engine is working and undertakes the main work of the engine oil pump, while the second oil pump of the engine is only the main oil pump of the engine. It is turned on under a preset working condition determined according to the inclination angle of the vehicle and the oil pressure of the engine, so that multiple oil pumps do not need to be turned on at the same time, and the power loss of the engine is reduced.

Optionally, determining the working state of the second oil pump according to the working inclination angle, the oil pressure, the preset critical inclination angle and the preset pressure, including:

If the working inclination angle is greater than the preset critical inclination angle and the oil pressure is lower than the first preset pressure, the second oil pump is activated, so that the second oil pump delivers the oil to the large end of the oil pan.

Here, the embodiment of the present application determines a working condition for starting the second oil pump, that is, when the working inclination angle is greater than the preset critical inclination angle, and the oil pressure is lower than the first preset pressure, the second oil pump is started, and the second oil pump is activated through the inclination angle and the oil pressure. The two preset pressure thresholds can accurately determine the working condition of the first oil pump of the engine when the first oil pump is emptied, thereby further improving the accuracy of engine control, further reducing the occurrence of engine scratching, cylinder pulling, etc. engine life.

Optionally, determining the working state of the second oil pump according to the working inclination angle, the oil pressure, the preset critical inclination angle and the preset pressure, including:

If the working inclination angle is smaller than the preset critical inclination angle, and the oil pressure is greater than a second preset pressure, the second oil pump is turned off.

Here, in the embodiment of the present application, when the working inclination angle is less than the preset critical inclination angle and the oil pressure is greater than the second preset pressure, it can be determined that the first oil pump will not have an air suction phenomenon at this time, and the second oil pump is directly closed according to the determination result, thereby Automatic and timely reduction of engine power loss.

Optionally, the determining the preset critical inclination angle of the engine includes:

The preset critical inclination angle of the engine is determined according to the shape of the oil pan of the engine, the amount of oil in the oil pan and the amount of circulating oil in the body.

Here, the preset critical inclination angle of the embodiment of the present application can be determined according to the shape of the oil pan of the engine, the oil amount of the oil pan and the circulating oil amount of the body, and the index related to the critical inclination angle in the engine is combined to solve the problem of different engine indexes with different bands. Therefore, the preset critical inclination angle when the first oil pump of the engine may be sucked can be accurately determined, thereby improving the accuracy of the control of the engine oil pump and further reducing the power loss of the engine.

Optionally, the starting of the second oil pump, so that the second oil pump can deliver the oil to the large end of the oil pan, includes:

The second oil pump is activated, so that the second oil pump delivers the oil to the large end of the oil pan in one direction.

Here, in the embodiment of the present application, when the second oil pump transports the oil to the large end of the oil pan, the oil can only be transported in one direction, which prevents part of the oil from overflowing from the large end to the small end of the oil pan due to the structure of the oil pan. The result is that the improvement effect is slow and the oil volume of the large end of the oil pan where the first oil pump is located will still cause the problem of air suction, which improves the efficiency of oil delivery, further reduces the power loss of the engine, and also improves the life of the engine.

In a second aspect, an embodiment of the present application provides an engine oil pump control device, characterized in that it includes:

The acquisition module is used to acquire the working inclination of the vehicle and the oil pressure of the engine;

a determination module, configured to determine a preset critical inclination angle and a preset pressure of the engine, where the preset critical inclination angle and the preset pressure are the critical inclination angle and the critical pressure when the first oil pump of the engine is emptied;

The control module is configured to control the working state of the second oil pump according to the working inclination angle, the oil pressure, the preset critical inclination angle and the preset pressure, so that the lubrication system supplies oil normally.

Optionally, the determining module is specifically used for:

If the working inclination angle is greater than the preset critical inclination angle and the oil pressure is lower than the first preset pressure, the second oil pump is activated, so that the second oil pump delivers the oil to the large end of the oil pan.

Optionally, the determining module is specifically used for:

If the working inclination angle is smaller than the preset critical inclination angle, and the oil pressure is greater than the second preset pressure, the second oil pump is turned off.

Optionally, the determining module is also used for:

The preset critical inclination angle of the engine is determined according to the shape of the oil pan of the engine, the amount of oil in the oil pan and the amount of circulating oil in the body.

Optionally, the control module is specifically configured to start the second oil pump, so that the second oil pump can deliver the oil to the large end of the oil pan in one direction.

In a third aspect, embodiments of the present application provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the first aspect or the first aspect. The engine oil pump control method described in an optional manner.

In a fourth aspect, an embodiment of the present application provides an engine oil pump control system, including a first oil pump, a second oil pump, an oil pan, and a controller;

The first oil pump and the second oil pump are connected, and the first oil pump and the second oil pump are respectively placed above the large end and the small end of the oil pan;

The controller is connected to the second oil pump for executing the engine oil pump control method according to any one of claims 1 to 5.

Optionally, the first oil pump and the second oil pump are connected through a one-way valve.

Optionally, the engine oil pump control system further includes a spirit level;

the level is connected with the controller;

The spirit level is used to obtain the working inclination of the vehicle.

In a fifth aspect, embodiments of the present application provide an engine, including the engine oil pump control system according to the fourth aspect or an optional manner of the fourth aspect.

The engine oil pump control method, device, system, and engine provided by the embodiments of the present application, wherein, when the method controls the oil pump of the engine of the vehicle, first obtains the inclination angle of the vehicle and the oil pressure of the engine, according to the inclination angle of the vehicle and the engine oil pressure. The oil pressure of the engine can control whether the second oil pump of the engine is turned on. Through the state of the second oil pump of the engine, the lubrication system can be supplied with oil normally. The first oil pump here can be the main oil pump of the engine, which is turned on when the engine is working. It undertakes the main work of the engine oil pump, while the second oil pump of the engine is only turned on under the preset working conditions determined according to the inclination angle of the vehicle and the oil pressure of the engine, thus eliminating the need for multiple oil pumps to be turned on at the same time, reducing the power loss of the engine.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of an integrated dual oil pump provided by the prior art;

2 is a schematic flowchart of a method for controlling an engine oil pump according to an embodiment of the application;

3 is a flowchart of another engine oil pump control method provided by an embodiment of the application;

4 is a schematic structural diagram of an engine oil pump control device provided by an embodiment of the application;

FIG. 5 is a schematic structural diagram of an engine oil pump control system according to an embodiment of the present application.

The above-mentioned drawings have shown clear embodiments of the present disclosure, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by referring to specific embodiments.

Detailed ways

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. Where the following description refers to the drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the illustrative examples below are not intended to represent all implementations consistent with this disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as recited in the appended claims.

The terms "first", "second", "third" and "fourth", etc. (if any) in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that data so used may be interchanged under appropriate circumstances so that the embodiments of the application described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having" and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those expressly listed Rather, those steps or units may include other steps or units not expressly listed or inherent to these processes, methods, products or devices.

During the driving process of the vehicle, the engine of the vehicle needs to suck oil from the oil pan through the oil pump to ensure the normal driving of the vehicle. When the vehicle is driving on a smooth road, the oil level of the engine remains level, and the engine oil pump can absorb oil normally. When driving up and downhill or the vehicle requires a large inclination angle, a large amount of oil collects in the small head of the oil pan, and the oil suction port of the oil filter of the oil pump cannot fully penetrate the oil, so that the oil pump sucks empty, causing the engine to scratch and pull the cylinder. , affecting the safety performance and service life of the vehicle.

In the related art, in order to adapt to the change of the inclination angle of the vehicle, the engine usually adopts the dual oil pump lubrication system of the main oil pump and the auxiliary oil pump. Exemplarily, FIG. 1 is a schematic structural diagram of an integrated dual oil pump provided in the prior art, such as As shown in FIG. 1 , the integrated dual oil pump provided by the prior art includes a main oil pump 101 and an auxiliary oil pump 102. The oil collector suction ports of the main oil pump 101 and the auxiliary oil pump 102 are located in the large end and the small end of the oil pan 103, respectively. The main oil pump 101 and the auxiliary oil pump 102 are integrated together, and the main oil pump 101 and the auxiliary oil pump 102 jointly absorb oil to avoid the occurrence of emptying of the oil pump. However, when the engine in the prior art works normally, even if the vehicle is not tilted and the main pump of the engine can absorb oil normally, the auxiliary pump is always in working state, which wastes part of the power of the engine and the power loss of the engine is too large.

In order to solve the above technical problems, the embodiments of the present application provide an engine oil pump control method, device, system and engine, which control the working state of the second oil pump through the working inclination angle of the vehicle and the oil pressure of the engine, without requiring the first oil pump of the engine to operate normally. Generates excess power when working, reducing the power consumption of the engine.

Optionally, the engine oil pump control method provided in the embodiments of the present application may be applied to an engine oil pump control system of a vehicle, and the system may include an oil pan, a controller, a first oil pump and a second oil pump, and the first oil pump is located in the oil pan. Above the big head of the engine is the oil suction of the engine. The second oil pump can be the structure of the engine itself or an external oil pump. The controller controls the working state of the second oil pump through the working inclination of the vehicle and the oil pressure of the engine. When the first oil pump of the engine works normally, excess power is generated to reduce the power consumption of the engine. The network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. The evolution of the architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

The technical solutions of the present application are described below by taking several embodiments as examples, and the same or similar concepts or processes may not be repeated in some embodiments.

2 is a schematic flowchart of a method for controlling an engine oil pump provided by an embodiment of the present application. The execution body of the embodiment of the present application may be an engine oil pump control system or a controller of the engine oil pump control system, and the specific execution body may be determined according to an actual application scenario. . As shown in Figure 2, the method includes the following steps:

S201: Obtain the working inclination of the vehicle and the oil pressure of the engine.

Optionally, the working inclination of the vehicle can be obtained through a level and a sensor installed on the vehicle.

Optionally, the oil pressure of the engine can be obtained through a pressure sensor.

Optionally, both the working inclination and the oil pressure of the above-mentioned vehicle can be acquired in real time, or acquired at a time threshold, and the engine oil pump can be adjusted in time, thereby further saving power consumption.

S202: Determine a preset critical inclination angle and a preset pressure of the engine, where the preset critical inclination angle and the preset pressure are the critical inclination angle and the critical pressure when the first oil pump of the engine is emptied.

Optionally, the preset critical inclination angle can be obtained according to historical data of the inclination angle of the vehicle, for example: if in the historical data, the probability of the engine oil pump of the vehicle with a predetermined inclination angle greater than a certain preset inclination angle is greater than the preset air suction probability, and \Or the probability that the engine oil pump of the vehicle with an inclination angle is smaller than the inclination angle is greater than the preset normal probability, then the preset inclination angle is determined as the preset critical inclination angle, so that the critical value of the vehicle inclination angle can be accurately determined according to the historical data of the vehicle inclination angle , which further improves the accuracy of engine oil pump control.

Optionally, determining the preset critical inclination angle of the engine includes: determining the preset critical inclination angle of the engine according to the shape of the oil pan of the engine, the oil volume of the oil pan and the circulating oil volume of the body.

Here, the embodiment of the present application can calculate the preset critical inclination angle of the suction of the main pump filter according to the shape of the oil pan, the oil amount of the oil pan, the circulating oil amount of the body, etc., combined with the index related to the critical inclination angle in the engine, The error caused by different engine indexes is solved, so that the preset critical inclination angle when the first oil pump of the engine may be sucked can be accurately determined, thereby improving the accuracy of the engine oil pump control and further reducing the power loss of the engine .

Optionally, the preset pressure may be obtained according to historical data of the oil pressure of the vehicle, or the oil pressure value judged according to an empirical value, or determined according to data such as the relevant parameters of the oil pan and the quality of the oil. There is no specific restriction on this.

S203: Control the working state of the second oil pump according to the working inclination angle, the oil pressure, the preset critical inclination angle and the preset pressure, so that the lubrication system can supply oil normally.

Here, the embodiment of the present application can achieve the purpose of saving the power consumption of the engine by controlling the opening of the second oil pump, including the following specific optional methods:

Option 1:

If the working inclination angle is greater than the preset critical inclination angle, and the oil pressure is lower than the first preset pressure, the second oil pump is activated, so that the second oil pump delivers the oil to the large end of the oil pan.

Because the working inclination angle of the vehicle is too large, a large amount of oil in the oil pan accumulates in the small head, and the oil pressure is too small to provide sufficient pressure for the first oil pump and the oil level to absorb oil. Here, the embodiment of the present application determines a The working condition of the second oil pump starting, that is, when the working inclination angle is greater than the preset critical inclination angle, and the oil pressure is less than the first preset pressure, the second oil pump is started, and the engine can be accurately determined through the two preset thresholds of the inclination angle and the oil pressure. The working condition of the first oil pump when the first oil pump is empty, thereby further improving the accuracy of engine control, further reducing the occurrence of engine scratching, cylinder pulling and other phenomena, and increasing the life of the engine.

Option 2: If the working inclination angle is smaller than the preset critical inclination angle, and the oil pressure is greater than the second preset pressure, the second oil pump is turned off.

Here, in the embodiment of the present application, when the working inclination angle is less than the preset critical inclination angle and the oil pressure is greater than the second preset pressure, it can be determined that the first oil pump will not have an air suction phenomenon at this time, and the second oil pump is directly closed according to the determination result, thereby Automatic and timely reduction of engine power loss.

Optionally, when the working inclination angle is less than the preset critical inclination angle and the oil pressure is greater than the second preset pressure, or when the working inclination angle is greater than the preset critical inclination angle and the oil pressure is greater than the second preset pressure, the first pressure can be controlled according to the actual situation. The opening and closing of the second oil pump.

Optionally, activating the second oil pump to make the second oil pump deliver the oil to the large end of the oil pan includes: activating the second oil pump to make the second oil pump unidirectionally deliver the oil to the large end of the oil pan.

Optionally, a one-way transport element may be provided between the first oil pump and the second oil pump, including a one-way valve, a check valve, and the like. In the embodiment of the present application, when the second oil pump transports the oil to the large end of the oil pan, the oil can only be transported in one direction, which prevents part of the oil from overflowing from the large end to the small end of the oil pan due to the structure of the oil pan, resulting in The improvement effect is slow and the oil volume of the large end of the oil pan where the first oil pump is located will still cause the problem of air suction, which improves the efficiency of oil delivery, further reduces the power loss of the engine, and also improves the life of the engine.

Here, when controlling the oil pump of the engine of the vehicle in the embodiment of the present application, the inclination angle of the vehicle and the oil pressure of the engine are first obtained, and according to the inclination angle of the vehicle and the oil pressure of the engine, it is possible to control whether the second oil pump of the engine is turned on. The state of the second oil pump can make the lubricating system supply oil normally. The first oil pump here can be the main oil pump of the engine. It is turned on when the engine is working and undertakes the main work of the engine oil pump, while the second oil pump of the engine is only the main oil pump of the engine. It is turned on under a preset working condition determined according to the inclination angle of the vehicle and the oil pressure of the engine, so that multiple oil pumps do not need to be turned on at the same time, and the power loss of the engine is reduced.

FIG. 3 is a flowchart of another engine oil pump control method provided by the embodiment of the application. As shown in FIG. 3 , the specific steps of the method are as follows:

S301: Obtain the current oil pressure of the vehicle and the current inclination of the vehicle.

S302: Determine whether the current oil pressure and the current inclination of the vehicle are within the specified value.

If the judgment result of S302 is yes, then jump to S303: the second oil pump of the engine is not started;

If the judgment result of S302 is no, then jump to S304: the second oil pump of the engine is started, so that the oil pump of the vehicle engine works normally.

The embodiment of the present application can determine whether the current oil pressure and the current inclination of the vehicle are within the specified values during the normal driving process of the vehicle, and adjust the state of the second oil pump of the vehicle in real time, without the need for the two oil pumps to continuously work together. When the oil absorption is normal, the power loss of the vehicle is saved.

FIG. 4 is a schematic structural diagram of an engine oil pump control device provided by an embodiment of the present application. As shown in FIG. 4 , the device of an embodiment of the present application includes an acquisition module 401 , a determination module 402 and a control module 403 . The engine oil pump control device here may be the controller itself in the engine oil pump control system, or a chip or integrated circuit that realizes the functions of the controller. It should be noted here that the division of the acquisition module 401 , the determination module 402 and the control module 403 is only a division of logical functions, and the two may be physically integrated or independent.

Wherein, the obtaining module 401 is used to obtain the working inclination angle of the vehicle and the oil pressure of the engine.

The determination module 402 is configured to determine a preset critical inclination angle and a preset pressure of the engine, where the preset critical inclination angle and the preset pressure are the critical inclination angle and the critical pressure when the first oil pump of the engine is emptied.

The control module 403 is configured to control the working state of the second oil pump according to the working inclination angle, the oil pressure, the preset critical inclination angle and the preset pressure, so that the lubrication system supplies oil normally.

Optionally, the determining module 402 is specifically configured to:

If the working inclination angle is greater than the preset critical inclination angle, and the oil pressure is lower than the first preset pressure, the second oil pump is activated, so that the second oil pump delivers the oil to the large end of the oil pan.

Optionally, the determining module 402 is specifically configured to:

If the working inclination angle is smaller than the preset critical inclination angle and the oil pressure is greater than the second preset pressure, the second oil pump is turned off.

Optionally, the determining module 402 is further configured to:

The preset critical inclination angle of the engine is determined according to the shape of the oil pan of the engine, the amount of oil in the oil pan and the amount of circulating oil in the body.

Optionally, the control module 403 is specifically configured to start the second oil pump, so that the second oil pump can deliver the oil to the large end of the oil pan in one direction.

FIG. 5 is a schematic structural diagram of an engine oil pump control system according to an embodiment of the present application. As shown in FIG. 5 , the engine oil pump control system provided by the embodiment of the present application includes a first oil pump 501 , a second oil pump 502 , an oil pan 503 and a controller 504 .

The first oil pump 501 and the second oil pump 502 are connected, and the first oil pump 501 and the second oil pump 502 are respectively placed above the large end and the small end of the oil pan 503 .

It can be understood that the first oil pump 501 is placed above the large head of the oil pan 503 to absorb the oil in the oil pan 503, and can deliver the absorbed oil to each friction pair to achieve the goal of normal oil supply for the lubrication system, The second oil pump 502 is placed above the small head of the oil pan 503, and is used to ensure the normal oil absorption of the first oil pump 501 under the special working conditions of the vehicle, so as to ensure that each friction pair can be effectively lubricated.

The controller 504 is connected to the second oil pump 502, and is used for controlling the working state of the second oil pump 502 through the above-mentioned engine oil pump control method.

Specifically, the controller 504 acquires the working inclination angle of the vehicle and the oil pressure of the engine; determines the preset critical inclination angle and the preset pressure of the engine, and the preset critical inclination angle and the preset pressure are the critical inclination angle when the first oil pump 501 of the engine is emptied and critical pressure; according to the working inclination angle, oil pressure, preset critical inclination angle and preset pressure, the working state of the second oil pump 502 is controlled to prevent the first oil pump 501 from being emptied.

Through the control of the working state of the second oil pump by the controller, it is not necessary to turn on multiple oil pumps at the same time, thereby reducing the power loss of the engine.

Optionally, the first oil pump 501 and the second oil pump 502 are connected through a one-way valve, so that when the second oil pump delivers the oil to the large end of the oil pan, the oil can only be delivered in one direction, preventing the structural reasons of the oil pan. , part of the oil overflows from the large end to the small end of the oil pan, resulting in a slow improvement effect and the problem of emptying the oil in the large end of the oil pan where the first oil pump is located, which improves the efficiency of oil delivery and further reduces the The power loss of the engine also increases the life of the engine.

Optionally, the engine oil pump control system further includes a spirit level, the spirit level is connected to the controller, and the spirit level is used to obtain the working inclination of the vehicle.

Optionally, the engine oil pump control system further includes a pressure sensor, the pressure sensor is connected to the controller, and the pressure sensor is used to obtain the oil pressure of the engine of the vehicle.

The engine oil pump control system of the embodiments of the present application can be used to implement the technical solutions in the above method embodiments of the present application, and the implementation principles and technical effects thereof are similar, and will not be repeated here.

Embodiments of the present application further provide an engine, including the above engine oil pump control system.

Embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, are used to implement the engine oil pump control method described in any of the foregoing embodiments .

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

Other embodiments of the present disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or techniques in the technical field not disclosed by the present disclosure . The specification and examples are to be regarded as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise structures described above and illustrated in the accompanying drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (8)

1. an engine oil pump control method, is characterized in that, comprises: Get the working inclination of the vehicle and the oil pressure of the engine; Determine a preset critical inclination angle and a preset pressure of the engine, the preset critical inclination angle and the preset pressure are the critical inclination angle and the critical pressure when the first oil pump of the engine is emptied; the preset pressure includes a first a preset pressure and a second preset pressure; If the working inclination angle is greater than the preset critical inclination angle, and the oil pressure is smaller than the first preset pressure, the second oil pump is activated, so that the second oil pump delivers the oil to the large end of the oil pan, In order to make the lubrication system supply oil normally; If the working inclination angle is smaller than the preset critical inclination angle, and the oil pressure is greater than the second preset pressure, the second oil pump is turned off. 2. The method according to claim 1, wherein the determining the preset critical angle of inclination of the engine comprises: The preset critical inclination angle of the engine is determined according to the shape of the oil pan of the engine, the amount of oil in the oil pan and the amount of circulating oil in the body. 3 . The method according to claim 1 , wherein the actuating the second oil pump so that the second oil pump delivers the oil to the large end of the oil pan comprises: 3 . The second oil pump is activated, so that the second oil pump delivers the oil to the large end of the oil pan in one direction. 4. An engine oil pump control device, characterized in that, comprising: The acquisition module is used to acquire the working inclination of the vehicle and the oil pressure of the engine; A determination module, configured to determine a preset critical inclination angle and a preset pressure of the engine, where the preset critical inclination angle and the preset pressure are the critical inclination angle and the critical pressure when the first oil pump of the engine is emptied; the preset critical inclination angle and the preset pressure are The set pressure includes a first preset pressure and a second preset pressure; a control module, configured to start a second oil pump when the working inclination angle is greater than the preset critical inclination angle and the oil pressure is less than the first preset pressure, so that the second oil pump delivers oil to the oil The big end of the bottom shell, so that the lubrication system can supply oil normally; When the working inclination angle is smaller than the preset critical inclination angle, and the oil pressure is greater than the second preset pressure, the second oil pump is turned off. 5. An engine oil pump control system, comprising a first oil pump, a second oil pump, an oil pan and a controller; The first oil pump and the second oil pump are connected, and the first oil pump and the second oil pump are respectively placed above the large end and the small end of the oil pan; The controller is connected to the second oil pump for executing the engine oil pump control method according to any one of claims 1 to 3. 6. The engine oil pump control system according to claim 5, wherein the first oil pump and the second oil pump are connected through a check valve. 7. The engine oil pump control system according to claim 5, characterized in that, further comprising a spirit level; the level is connected with the controller; The spirit level is used to obtain the working inclination of the vehicle. 8. An engine, characterized by comprising the engine oil pump control system according to any one of claims 5 to 7.

Images