Engine lubrication system operating condition detection method, electronic device and storage medium

Abstract

The present invention discloses a method, electronic device, and storage medium for detecting the working condition of an engine lubrication system, comprising: obtaining a first temperature value and a first pressure value after an oil pump, and a second temperature value and a second pressure value of a main oil channel; determining the flow rate after the oil pump based on the first temperature value and the first pressure value, and determining the flow rate of the main oil channel based on the second temperature value and the second pressure value; and determining a blockage fault or leakage fault of the engine lubrication system based on the first pressure value, the second pressure value, the flow rate of the main oil channel, and the flow rate after the oil pump. This application can detect parameters such as the temperature, pressure, and flow rate of the engine oil by setting working condition detection points in the engine lubrication system, and comprehensively judge the working condition of the engine lubrication system by identifying the detected working condition parameters. It can accurately detect the location of the fault, help maintenance personnel quickly locate the fault, and improve the efficiency of fault resolution.

Description

Technical Field

[0001] The present invention relates to the technical field of engines, and in particular to a method for detecting the working condition of an engine lubrication system, an electronic device, and a storage medium. Background Art

[0002] During engine operation, numerous components rotate around their axes. To reduce friction and wear during high-speed operation, the friction surfaces require continuous lubrication. Typically, engine lubrication systems only monitor the oil temperature and pressure in the main oil gallery, generating alarms when lubrication system anomalies occur. However, the complexity of lubrication systems makes it difficult to quickly analyze and address faults during maintenance.

[0003] Therefore, the technical problem of how to accurately detect the fault point of the engine lubrication system needs to be solved urgently. Summary of the Invention

[0004] In order to solve the technical problem of how to accurately detect the fault point of the engine lubrication system described in the above background technology, the present invention provides a working condition detection method, electronic equipment and storage medium of the engine lubrication system.

[0005] According to one aspect of an embodiment of the present application, a method for detecting the operating condition of an engine lubrication system is provided, including: obtaining a first temperature value and a first pressure value after an oil pump, and a second temperature value and a second pressure value of a main oil channel; determining a flow rate after the oil pump based on the first temperature value and the first pressure value, and determining a flow rate in the main oil channel based on the second temperature value and the second pressure value; determining a blockage fault or a leakage fault of the engine lubrication system based on the first pressure value, the second pressure value, the flow rate in the main oil channel, and the flow rate after the oil pump.

[0006] Optionally, the second pressure value includes a main oil channel front pressure value and a main oil channel rear pressure value, the second temperature value includes a main oil channel front temperature value and a main oil channel rear temperature value, the main oil channel flow includes a main oil channel front flow and a main oil channel rear flow, and the operating condition detection method further includes: determining the main oil channel front flow based on the main oil channel front temperature value and the main oil channel front pressure value, and determining the main oil channel rear flow based on the main oil channel rear temperature value and the main oil channel rear pressure value; determining the engine lubrication system blockage fault or leakage fault based on the main oil channel front flow, the main oil channel rear flow, the oil pump rear flow, the first pressure value, the main oil channel front pressure value and the main oil channel rear pressure value.

[0007] Optionally, the determination of the blockage fault or leakage fault of the engine lubrication system based on the front flow of the main oil channel, the rear flow of the main oil channel, the rear flow of the oil pump, the first pressure value, the front pressure value of the main oil channel and the rear pressure value of the main oil channel includes: when the first pressure value is greater than the maximum value in the first preset interval, the front pressure value of the main oil channel is greater than the maximum value in the second preset interval, and the rear pressure value of the main oil channel is greater than the maximum value in the third preset interval, it is determined that the engine lubrication system has a blockage fault; when the first pressure value is less than the minimum value in the first preset interval, the front pressure value of the main oil channel is less than the minimum value in the second preset interval, and the rear pressure value of the main oil channel is less than the minimum value in the third preset interval, it is determined that the engine lubrication system has a leakage fault.

[0008] Optionally, when the first pressure value is greater than the maximum value in the first preset interval, the pressure value before the main oil channel is greater than the maximum value in the second preset interval, and the pressure value after the main oil channel is greater than the maximum value in the third preset interval, determining that the engine lubrication system has a blockage fault includes: when the flow after the oil pump is greater than the maximum value in the fourth preset interval, the flow before the main oil channel is greater than the maximum value in the fifth preset interval, and the flow after the main oil channel is greater than the maximum value in the sixth preset interval, determining that the main oil channel pressure limiting valve has a blockage fault.

[0009] Optionally, the operating condition detection method of the engine lubrication system also includes: when the flow rate after the oil pump is included in the fourth preset interval, and the flow rate before the main oil channel is greater than the maximum value in the fifth preset interval and the flow rate after the main oil channel is less than the minimum value in the sixth preset interval, it is determined that the working component at the rear of the main oil channel is blocked; when the flow rate after the oil pump is included in the fourth preset interval, and the flow rate before the main oil channel is less than the minimum value in the fifth preset interval and the flow rate after the main oil channel is greater than the maximum value in the sixth preset interval, it is determined that the working component in the middle of the main oil channel is blocked.

[0010] Optionally, the method of determining a blockage fault or leakage fault of the engine lubrication system based on the main oil channel front flow, the main oil channel rear flow, the oil pump rear flow, the first pressure value, the main oil channel front pressure value and the main oil channel rear pressure value also includes: when the first pressure value is greater than the maximum value within the first preset interval, and the main oil channel front pressure value, the main oil channel rear pressure value, the oil pump rear flow, the main oil channel front flow and the main oil channel rear flow are all included in the corresponding preset interval, determining that the oil cooling filter is blocked.

[0011] Optionally, when the first pressure value is less than the minimum value in the first preset interval, the pressure value before the main oil channel is less than the minimum value in the second preset interval, and the pressure value after the main oil channel is less than the minimum value in the third preset interval, determining that the engine lubrication system has a leakage fault includes: when the flow after the oil pump is less than the minimum value in the fourth preset interval, the flow before the main oil channel is less than the minimum value in the fifth preset interval, and the flow after the main oil channel is less than the minimum value in the sixth preset interval, determining that the oil pump is faulty and / or the main oil channel pressure limiting valve is leaking.

[0012] Optionally, the operating condition detection method of the engine lubrication system also includes: when the oil pump flow is included in the fourth preset interval, the flow before the main oil channel is less than the minimum value in the fifth preset interval, and the flow after the main oil channel is greater than the maximum value in the sixth preset interval, it is determined that the working component at the rear of the main oil channel is leaking; when the oil pump flow is included in the fourth preset interval, the flow before the main oil channel is greater than the maximum value in the fifth preset interval, and the flow after the main oil channel is less than the minimum value in the sixth preset interval, it is determined that the working component in the middle of the main oil channel is leaking; when the oil pump flow is included in the fourth preset interval, the flow before the main oil channel is less than the minimum value in the fifth preset interval, and the flow after the main oil channel is less than the minimum value in the sixth preset interval, it is determined that the oil cooling filter is leaking.

[0013] According to another aspect of the embodiments of the present application, an electronic device is also provided, including a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; wherein the memory is used to store computer programs; and the processor is used to execute the method steps in any of the above embodiments by running the computer program stored in the memory.

[0014] According to another aspect of the embodiments of the present application, a computer-readable storage medium is provided, in which a computer program is stored. The computer program is configured to execute the method steps in any of the above embodiments when run.

[0015] Due to the complexity of the lubrication system, it is difficult to quickly analyze and handle faults during maintenance. Therefore, in this embodiment, by setting operating condition detection points in the engine lubrication system, operating parameters such as oil temperature, pressure and flow can be detected, and the operating condition of the engine lubrication system can be comprehensively judged by identifying the detected operating parameters. The location of blockage or leakage faults can be accurately detected, which can help maintenance personnel quickly locate them and improve fault solving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 is a flow chart of an optional method for detecting the operating condition of an engine lubrication system according to an embodiment of the present application;

[0019] Figure 2 is a schematic structural diagram of an optional engine lubrication system according to an embodiment of the present application;

[0020] Figure 3 It is a schematic diagram of an optional oil density characteristic curve according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0022] It should be noted that the terms "first", "second", etc. in the specification 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 sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0023] As described in the background, numerous engine components rotate around their axes during operation. To reduce friction and wear during high-speed operation, continuous lubrication of the friction surfaces is essential. Typically, engine lubrication systems only monitor the oil temperature and pressure in the main oil gallery, generating alarms when lubrication system anomalies occur. However, the complexity of lubrication systems makes rapid fault analysis and resolution difficult during maintenance.

[0024] Therefore, according to one aspect of the embodiment of the present application, a method for detecting the working condition of an engine lubrication system is provided. Figure 1-Figure 3 The engine lubrication system shown includes an oil pump 30, an oil pan 20, a main oil gallery 10, a main oil gallery middle portion 60, a main oil gallery rear portion 70, an oil cooling filter 40, and a main oil gallery pressure limiting valve 50. It also includes detection points A, B, and C. The method may include the following steps:

[0025] S10 . Acquire a first temperature value and a first pressure value after the oil pump 30 , and a second temperature value and a second pressure value of the main oil gallery.

[0026] In this embodiment, temperature and pressure sensors can be set in the engine lubrication system, a front pressure and temperature sensor can be set at a certain position in front of the position to be detected, and a rear pressure sensor can be set at a certain position behind the position to be detected. In the engine lubrication system, multiple groups of front temperature and pressure sensors and rear pressure sensors can be set according to actual usage needs to detect the pressure, pressure difference and temperature information of the detected position. In this embodiment, multiple temperature and pressure sensors can be set behind the oil pump 30 and on the main oil channel 10.

[0027] In order to ensure the accuracy of temperature and pressure sensor detection, it can be set in an area where the oil disturbance is relatively gentle.

[0028] S20 . Determine the flow rate after the oil pump 30 based on the first temperature value and the first pressure value, and determine the flow rate of the main oil gallery based on the second temperature value and the second pressure value.

[0029] In this embodiment, after determining the temperature and pressure values ​​of the detected position, the flow rate value can be calculated using the temperature and pressure values. See the following formula (1):

[0030]

[0031] Among them, Q is the flow rate at the detection point, A is the oil channel cross-sectional area at the detection point, △P is the pressure difference between the front and rear end detection points, ρ is the oil density at the detection point, and ζ is the local resistance coefficient. The current flow value can be calculated by formula (1) and the operating parameters read by the ECU to obtain the flow rate after the oil pump 30 and the main oil channel flow rate.

[0032] It should be noted that the oil density ρ changes with the oil temperature. Therefore, it is necessary to determine the corresponding oil density based on the temperature value of the detection point detected by the temperature sensor by looking up a pre-calibrated oil temperature and oil density curve or a two-dimensional interpolation table to improve the accuracy of the flow calculation at the detection point.

[0033] S30. Determine a blockage fault or a leakage fault of the engine lubrication system based on the first pressure value, the second pressure value, the main oil channel flow rate, and the oil pump 30 flow rate.

[0034] In this embodiment, due to the complexity of the lubrication system, it is difficult to quickly analyze and handle faults during maintenance. Therefore, by setting operating condition detection points in the engine lubrication system, operating parameters such as oil temperature, pressure and flow can be detected, and the operating condition of the engine lubrication system can be comprehensively judged by identifying the detected operating parameters. The location of blockage or leakage faults can be accurately detected, which can help maintenance personnel quickly locate the faults and improve fault resolution efficiency.

[0035] As an exemplary embodiment, the second pressure value includes a pressure value before the main oil channel 10 and a pressure value after the main oil channel 10, the second temperature value includes a temperature value before the main oil channel 10 and a temperature value after the main oil channel 10, and the flow rate of the main oil channel 10 includes a flow rate before the main oil channel 10 and a flow rate after the main oil channel 10. The operating condition detection method also includes: determining the flow rate before the main oil channel 10 based on the temperature value before the main oil channel 10 and the pressure value before the main oil channel 10, and determining the flow rate after the main oil channel 10 based on the temperature value after the main oil channel 10 and the pressure value after the main oil channel 10; determining the blockage fault or leakage fault of the engine lubrication system based on the flow rate before the main oil channel 10, the flow rate after the main oil channel 10, the flow rate after the oil pump 30, the first pressure value, the pressure value before the main oil channel 10 and the pressure value after the main oil channel 10.

[0036] In this embodiment, two detection points can be set on the main oil channel 10 to detect the pressure, temperature and flow before the main oil channel 10, and the temperature, pressure and flow after the main oil channel 10 respectively. Combined with the temperature, pressure and flow after the oil pump 30, the operating conditions of the engine lubrication system can be determined more accurately through the operating parameters of the three detection positions, and the location of the blockage or leakage fault can be accurately determined. The identified fault location can be stored in the ECU in the form of a code. Maintenance personnel only need to read the code to determine the exact fault point and then perform maintenance, which effectively improves the efficiency of fault resolution.

[0037] As an exemplary embodiment, the operating condition of the engine lubrication system is determined based on the flow rate before the main oil channel 10, the flow rate after the main oil channel 10, the flow rate after the oil pump 30, the first pressure value, the pressure value before the main oil channel 10 and the pressure value after the main oil channel 10, including: when the first pressure value is greater than the maximum value in the first preset interval, the pressure value before the main oil channel 10 is greater than the maximum value in the second preset interval, and the pressure value after the main oil channel 10 is greater than the maximum value in the third preset interval, it is determined that a blockage fault has occurred in the engine lubrication system; when the first pressure value is less than the minimum value in the first preset interval, the pressure value before the main oil channel 10 is less than the minimum value in the second preset interval, and the pressure value after the main oil channel 10 is less than the minimum value in the third preset interval, it is determined that a leakage fault has occurred in the engine lubrication system.

[0038] In this embodiment, when there is no fault in the engine lubrication system, the pressure at different positions has a normal fluctuation range. In this embodiment, the first pressure value after the oil pump 30 corresponds to the first preset interval, the pressure before the main oil channel 10 corresponds to the second preset interval, and the pressure after the main oil channel 10 corresponds to the third preset interval. Among them, the first preset interval, the second preset interval and the third preset interval can be obtained through calibration during the bench test.

[0039] When the ECU analyzes that the first pressure value is greater than the maximum value of the first preset interval, the pressure value before the main oil channel 10 is greater than the maximum value of the second preset interval, and the pressure value after the main oil channel 10 is greater than the maximum value of the second preset interval, it can be preliminarily determined that a blockage fault has occurred in the engine lubrication system; similarly, when the ECU analyzes that the first pressure value is less than the minimum value of the first preset interval, the pressure value before the main oil channel 10 is less than the minimum value of the second preset interval, and the pressure value after the main oil channel 10 is less than the minimum value of the second preset interval, it can be preliminarily determined that a leakage fault has occurred in the engine lubrication system.

[0040] As an exemplary embodiment, when the first pressure value is greater than the maximum value in the first preset interval, the pressure value before the main oil channel 10 is greater than the maximum value in the second preset interval, and the pressure value after the main oil channel 10 is greater than the maximum value in the third preset interval, it is determined that a blockage fault has occurred in the engine lubrication system, including: when the flow after the oil pump 30 is greater than the maximum value in the fourth preset interval, the flow before the main oil channel 10 is greater than the maximum value in the fifth preset interval, and the flow after the main oil channel 10 is greater than the maximum value in the sixth preset interval, it is determined that a blockage fault has occurred in the main oil channel pressure limiting valve 50.

[0041] In this embodiment, when it is preliminarily determined that a blockage fault has occurred in the engine lubrication system, the flow rate after the oil pump 30, the flow rate before the main oil channel 10, and the flow rate after the main oil channel 10 are analyzed and compared with the numerical range when there is no fault, wherein the flow rate after the oil pump 30 corresponds to the fourth preset range, the flow rate before the main oil channel 10 corresponds to the fifth preset range, and the flow rate after the main oil channel 10 corresponds to the sixth preset range. When the ECU analysis determines that the flow rate after the oil pump 30 is greater than the maximum value of the fourth preset range, the flow rate before the main oil channel 10 is greater than the maximum value of the fifth preset range, and the flow rate after the main oil channel 10 is greater than the maximum value of the sixth preset range, it can be determined that the main oil channel pressure limiting valve 50 is blocked at this time. At this time, the main oil channel pressure limiting valve 50 cannot relieve pressure for the engine lubrication system, resulting in high overall pressure of the engine lubrication system and increased flow.

[0042] As an exemplary embodiment, the operating condition detection method of the engine lubrication system also includes: when the flow rate after the oil pump 30 is included in the fourth preset interval, and the flow rate before the main oil channel 10 is greater than the maximum value in the fifth preset interval, and the flow rate after the main oil channel 10 is less than the minimum value in the sixth preset interval, it is determined that the working component of the rear part 70 of the main oil channel is blocked; when the flow rate after the oil pump 30 is included in the fourth preset interval, and the flow rate before the main oil channel 10 is less than the minimum value in the fifth preset interval, and the flow rate after the main oil channel 10 is greater than the maximum value in the sixth preset interval, it is determined that the working component of the middle part 60 of the main oil channel is blocked.

[0043] In this embodiment, when the first pressure value, the pressure value before the main oil gallery 10, and the pressure value after the main oil gallery 10 are all higher than the maximum values ​​of the corresponding preset intervals, if the ECU analyzes that the flow rate after the oil pump 30 is included in the fourth preset interval and is within the normal range, the flow rate before the main oil gallery 10 is greater than the maximum value of the fifth preset interval, and the flow rate after the main oil gallery 10 is less than the minimum value of the sixth preset interval, it indicates that the oil pump 30 is operating normally at this time. Therefore, the flow rate after the oil pump 30 is within the normal range, while the flow rate before the main oil gallery 10 increases, that is, more oil flows from the oil pump 30 into the connecting components of the main oil gallery middle portion 60, such as the main bearings and the auxiliary oil gallery. The flow rate after the main oil gallery 10 decreases, that is, less oil flows from the oil pump 30 into the connecting components of the main oil gallery rear portion 70. Then, it can be determined that the main oil gallery rear portion 70 is blocked, and the ECU records the fault code at this time. When maintenance personnel perform maintenance, they can use this fault code to identify the fault location and perform repairs.

[0044] When the first pressure value, the pressure value before the main oil gallery 10 and the pressure value after the main oil gallery 10 are all higher than the maximum values ​​of the corresponding preset intervals, if the ECU analyzes that the flow rate after the oil pump 30 is included in the fourth preset interval and is in the normal range, the flow rate before the main oil gallery 10 is less than the minimum value of the fifth preset interval, and the flow rate after the main oil gallery 10 is greater than the maximum value of the sixth preset interval, it indicates that the oil pump 30 is not faulty and is operating normally, while the flow rate before the main oil gallery 10 decreases, the flow rate after the main oil gallery 10 increases, and the flow rate flowing into the rear part 70 of the main oil gallery increases, then it can be determined that the middle part 60 of the main oil gallery is blocked, and the oil is difficult to flow into the middle part 60 of the main oil gallery, or the oil flowing into the middle part 60 of the main oil gallery is reduced.

[0045] As an exemplary embodiment, the method of determining the operating condition of the engine lubrication system based on the flow rate before the main oil channel 10, the flow rate after the main oil channel 10, the flow rate after the oil pump 30, the first pressure value, the pressure value before the main oil channel 10, and the pressure value after the main oil channel 10 also includes: when the first pressure value is greater than the maximum value within the first preset interval, and the pressure value before the main oil channel 10, the pressure value after the main oil channel 10, the flow rate after the oil pump 30, the flow rate before the main oil channel 10, and the flow rate after the main oil channel 10 are all included in the corresponding preset intervals, determining that the oil cooling filter 40 is clogged.

[0046] In this embodiment, when only the first pressure value is greater than the maximum value within the first preset interval and the other operating parameters all fall within the corresponding preset intervals, indicating that the pressure value after the oil pump 30 increases, it can be determined that the oil cooling filter 40 is clogged, while the operating conditions of other components are normal. If the oil cooling filter 40 is not repaired in time, the higher pressure may cause damage to the oil cooling filter 40 or damage the pipeline.

[0047] As an exemplary embodiment, when the first pressure value is less than the minimum value in the first preset interval, the pressure value before the main oil channel 10 is less than the minimum value in the second preset interval, and the pressure value after the main oil channel 10 is less than the minimum value in the third preset interval, it is determined that the engine lubrication system has a leakage fault, including: when the flow after the oil pump 30 is less than the minimum value in the fourth preset interval, the flow before the main oil channel 10 is less than the minimum value in the fifth preset interval, and the flow after the main oil channel 10 is less than the minimum value in the sixth preset interval, it is determined that the oil pump 30 is faulty and / or the main oil channel pressure limiting valve 50 is leaking.

[0048] In this embodiment, after the leakage fault is preliminarily determined, the relationship between the flow rate after the oil pump 30, the flow rate before the main oil channel 10 and the flow rate after the main oil channel 10 and the corresponding preset intervals is further analyzed. If the ECU analysis determines that the flow rate after the oil pump 30 is less than the minimum value in the fourth preset interval, the flow rate before the main oil channel 10 is less than the minimum value in the fifth preset interval, and the flow rate after the main oil channel 10 is less than the minimum value in the sixth preset interval, it is determined that the oil pump 30 has failed and / or the main oil channel pressure limiting valve 50 has failed, and the corresponding fault code is recorded. When the maintenance personnel perform maintenance, they only need to check the oil pump 30 and the main oil channel pressure limiting valve 50, thereby improving the efficiency of fault resolution.

[0049] As an exemplary embodiment, the operating condition detection method of the engine lubrication system further includes: when the flow rate of the oil pump 30 is included in the fourth preset interval, the flow rate before the main oil gallery 10 is less than the minimum value in the fifth preset interval, and the flow rate after the main oil gallery 10 is greater than the maximum value in the sixth preset interval, determining that a working component in the rear portion 70 of the main oil gallery has leaked; when the flow rate of the oil pump 30 is included in the fourth preset interval, the flow rate before the main oil gallery 10 is greater than the maximum value in the fifth preset interval, and the flow rate after the main oil gallery 10 is less than the minimum value in the sixth preset interval, determining that a working component in the middle portion 60 of the main oil gallery has leaked; when the flow rate of the oil pump 30 is included in the fourth preset interval, the flow rate before the main oil gallery 10 is less than the minimum value in the fifth preset interval, and the flow rate after the main oil gallery 10 is less than the minimum value in the sixth preset interval, determining that a leakage has occurred in the oil cooling filter 40.

[0050] In this embodiment, after preliminarily determining that a leakage fault has occurred in the engine lubrication system, if the flow rate of the oil pump 30 is included in the fourth preset interval, the flow rate before the main oil channel 10 is less than the minimum value in the fifth preset interval, and the flow rate after the main oil channel 10 is greater than the maximum value in the sixth preset interval, it indicates that the operating condition of the oil pump 30 is normal at this time, while the oil flowing into the middle part 60 of the main oil channel decreases, and the oil flowing into the rear part 70 of the main oil channel increases, it is determined that a leakage has occurred in the working component of the rear part 70 of the main oil channel.

[0051] When the flow rate of the oil pump 30 is included in the fourth preset interval, the flow rate in front of the main oil gallery 10 is greater than the maximum value in the fifth preset interval, and the flow rate after the main oil gallery 10 is less than the minimum value in the sixth preset interval, it indicates that the operating condition of the oil pump 30 is normal at this time, while the oil flowing into the middle part 60 of the main oil gallery increases, and the oil flowing into the rear part 70 of the main oil gallery decreases, determining that a working component in the middle part 60 of the main oil gallery has leaked.

[0052] When the flow rate of the oil pump 30 is included in the fourth preset interval, the flow rate before the main oil gallery 10 is less than the minimum value in the fifth preset interval, and the flow rate after the main oil gallery 10 is less than the minimum value in the sixth preset interval, it indicates that the oil flowing into the middle part 60 of the main oil gallery and the rear part 70 of the main oil gallery are both reduced. It can be further determined that the oil pump 30 or the oil cooling filter 40 is faulty. If it is determined that the oil pump 30 is operating normally based on the detected flow rate after the oil pump 30, it can be determined that the oil cooling filter 40 is leaking.

[0053] According to another aspect of the embodiments of the present application, an electronic device is provided, comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus, and the memory is used to store a computer program; and the processor is used to execute the operating condition detection method of the engine lubrication system described in any one of the above embodiments by running the computer program stored in the memory.

[0054] According to another aspect of the embodiments of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the operating condition detection method of the engine lubrication system described in any one of the above embodiments when running.

[0055] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0056] It should be noted that for the aforementioned method embodiments, for the sake of simplicity, they are all expressed as a series of action combinations, but those skilled in the art should be aware that this application is not limited by the order of the actions described, because according to this application, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by this application.

[0057] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A method for detecting the working condition of an engine lubrication system, characterized in that: include: Acquire a first temperature value and a first pressure value after the oil pump, and a second temperature value and a second pressure value of the main oil gallery; determining an oil pump rear flow rate based on the first temperature value and the first pressure value, and determining a main oil gallery flow rate based on the second temperature value and the second pressure value; determining a blockage fault or a leakage fault of the engine lubrication system based on the first pressure value, the second pressure value, the main oil gallery flow rate, and the oil pump backflow rate; The second pressure value includes a pressure value before the main oil passage and a pressure value after the main oil passage, the second temperature value includes a temperature value before the main oil passage and a temperature value after the main oil passage, and the main oil passage flow includes a flow rate before the main oil passage and a flow rate after the main oil passage. The operating condition detection method further includes: Determining a main oil gallery front flow rate based on the main oil gallery front temperature value and the main oil gallery front pressure value, and determining a main oil gallery rear flow rate based on the main oil gallery rear temperature value and the main oil gallery rear pressure value; Determining a blockage fault or a leakage fault of the engine lubrication system based on the main oil gallery front flow rate, the main oil gallery rear flow rate, the oil pump rear flow rate, the first pressure value, the main oil gallery front pressure value, and the main oil gallery rear pressure value; Determining the blockage fault or leakage fault of the engine lubrication system based on the main oil gallery front flow rate, the main oil gallery rear flow rate, the oil pump rear flow rate, the first pressure value, the main oil gallery front pressure value, and the main oil gallery rear pressure value includes: When the first pressure value is greater than the maximum value in the first preset interval, the pressure value before the main oil gallery is greater than the maximum value in the second preset interval, and the pressure value after the main oil gallery is greater than the maximum value in the third preset interval, it is determined that a blockage fault occurs in the engine lubrication system; When the first pressure value is less than the minimum value in the first preset interval, the pressure value before the main oil gallery is less than the minimum value in the second preset interval, and the pressure value after the main oil gallery is less than the minimum value in the third preset interval, it is determined that a leakage fault occurs in the engine lubrication system.

2. The method for detecting the operating condition of an engine lubrication system according to claim 1, wherein: When the first pressure value is greater than a maximum value within a first preset interval, the pressure value before the main oil gallery is greater than a maximum value within a second preset interval, and the pressure value after the main oil gallery is greater than a maximum value within a third preset interval, determining that a blockage fault occurs in the engine lubrication system includes: When the flow rate after the oil pump is greater than the maximum value in the fourth preset interval, the flow rate before the main oil channel is greater than the maximum value in the fifth preset interval, and the flow rate after the main oil channel is greater than the maximum value in the sixth preset interval, it is determined that a blockage fault has occurred in the main oil channel pressure limiting valve.

3. The method for detecting the operating condition of an engine lubrication system according to claim 2, wherein: Also includes: When the flow rate after the oil pump is within the fourth preset interval, the flow rate before the main oil gallery is greater than the maximum value within the fifth preset interval, and the flow rate after the main oil gallery is less than the minimum value within the sixth preset interval, it is determined that the working component at the rear of the main oil gallery is blocked; When the oil pump rear flow rate is included in the fourth preset interval, the main oil channel front flow rate is less than the minimum value in the fifth preset interval, and the main oil channel rear flow rate is greater than the maximum value in the sixth preset interval, it is determined that the working component in the middle of the main oil channel is blocked.

4. The method for detecting the operating condition of an engine lubrication system according to claim 1, wherein: The determining of a blockage fault or a leakage fault of the engine lubrication system based on the flow rate before the main oil gallery, the flow rate after the main oil gallery, the flow rate after the oil pump, the first pressure value, the pressure value before the main oil gallery, and the pressure value after the main oil gallery further includes: When the first pressure value is greater than the maximum value within the first preset interval, and the main oil gallery front pressure value, the main oil gallery rear pressure value, the oil pump rear flow rate, the main oil gallery front flow rate, and the main oil gallery rear flow rate are all within the corresponding preset intervals, it is determined that the oil cooling filter is clogged.

5. The method for detecting the operating condition of an engine lubrication system according to claim 1, wherein: Determining that a leakage fault occurs in the engine lubrication system when the first pressure value is less than a minimum value within a first preset interval, the pressure value before the main oil gallery is less than a minimum value within a second preset interval, and the pressure value after the main oil gallery is less than a minimum value within a third preset interval includes: When the flow rate after the oil pump is less than the minimum value in the fourth preset interval, the flow rate before the main oil channel is less than the minimum value in the fifth preset interval, and the flow rate after the main oil channel is less than the minimum value in the sixth preset interval, it is determined that the oil pump is faulty and / or the main oil channel pressure limiting valve is leaking.

6. The method for detecting the operating condition of an engine lubrication system according to claim 5, wherein: Also includes: When the flow rate after the oil pump is within the fourth preset interval, the flow rate before the main oil gallery is less than the minimum value within the fifth preset interval, and the flow rate after the main oil gallery is greater than the maximum value within the sixth preset interval, it is determined that a leakage occurs in the working component at the rear of the main oil gallery; When the flow rate after the oil pump is within the fourth preset interval, the flow rate before the main oil gallery is greater than the maximum value within the fifth preset interval, and the flow rate after the main oil gallery is less than the minimum value within the sixth preset interval, it is determined that a working component in the middle of the main oil gallery has leaked; When the oil pump post-flow rate is included in the fourth preset interval, the main oil gallery pre-flow rate is less than the minimum value in the fifth preset interval, and the main oil gallery post-flow rate is less than the minimum value in the sixth preset interval, it is determined that the oil cooling filter is leaking.

7. An electronic device comprising a processor, a communication interface, a memory and a communication bus, wherein: The processor, the communication interface and the memory communicate with each other via the communication bus, wherein: The memory is used to store computer programs; The processor is configured to execute the method for detecting the operating condition of the engine lubrication system according to any one of claims 1 to 6 by running the computer program stored in the memory.

8. A computer-readable storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the method for detecting the operating condition of an engine lubrication system according to any one of claims 1 to 6 when running.

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