Valve oil seal wear monitoring method, device, equipment, storage medium, program

Abstract

The present invention relates to a valve oil seal wear monitoring method, device, equipment, storage medium, and program, the method comprising: obtaining the first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed; collecting the second load and the second speed during the operation of the engine and the second time when the engine runs at the second load and the second speed; calculating the relative operation time of the engine according to the second load, the second speed, and the second time of the engine; wherein the relative operation time is defined as: the state of the relative operation time of the engine running at the first load and the first speed is equivalent to the state of the engine running at the second load and the second speed for the second time; comparing the relative operation time with the first time, and outputting corresponding reminder information based on the comparison result. The above method can accurately monitor the wear of the engine valve oil seal.

Description

Technical Field

[0001] The present invention relates to the technical field of valve monitoring and detection, and in particular to a valve oil seal wear monitoring method, device, computer equipment, storage medium and computer program. Background Art

[0002] The valve seal is one of the important parts of the engine valve group, used for sealing and lubricating the valve stem. The engine valve seal is mainly a serrated fluororubber seal sleeve, which achieves a balance between valve stem lubrication and sealing by adjusting the sealing gap. Through continuous data accumulation, it is found that one of the main indicators of engine valve seal wear is the continuous increase in the rate of oil consumption, see Figure 1 The change is basically in line with the exponential distribution: when the valve seal wear is at a reasonable level, the oil consumption increases slowly; when the wear exceeds the limit, the oil consumption increases rapidly.

[0003] At present, since valve oil seal wear is one of the factors affecting engine oil consumption, excessive wear of the valve oil seal will cause high engine oil consumption. Without adding sensors, it is difficult to identify the wear state of the valve oil seal. Summary of the invention

[0004] The present application provides a valve oil seal wear monitoring method, device, computer equipment, storage medium and computer program.

[0005] A first aspect provides a valve oil seal wear monitoring method, comprising:

[0006] Obtaining a first time required for a valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed;

[0007] collecting a second load and a second speed during the operation of the engine and a second time during which the engine operates at the second load and the second speed;

[0008] Calculating the relative running time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative running time is defined as: the state in which the engine runs at the first load and the first speed for the relative running time is equivalent to the state in which the engine runs at the second load and the second speed for the second time;

[0009] The relative running time is compared with the first time, and corresponding reminder information is output based on the comparison result.

[0010] In some embodiments, obtaining a first time required for a valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed includes:

[0011] The first time required for the valve oil seal of the engine to wear when the engine runs at a rated load and a rated speed is collected.

[0012] In some embodiments, obtaining a first time required for a valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed includes:

[0013] The engine is operated at the first load and the first speed, an oil consumption rate of the engine is collected in real time, and a first time required for the valve oil seal to wear is determined according to the oil consumption rate.

[0014] In some embodiments, calculating the relative running time of the engine according to the second load, the second speed and the second time of the engine includes:

[0015] Constructing a load-speed coordinate, wherein the load-speed coordinate includes a load axis and a speed axis that intersect vertically, the scale on the load axis is a plurality of load values ​​of the engine, the scale on the speed coordinate axis is a plurality of speed values ​​of the engine, and the coordinate region formed by the load axis and the coordinate axis is divided into a plurality of sub-regions;

[0016] determining a sub-region in which the second load and the second speed are located and a second time in the sub-region during operation of the engine;

[0017] Based on a preset time conversion formula, the relative running time of the engine is obtained according to the average value of the second load in each sub-area, the average value of the second speed in each sub-area and the second time in each sub-area; wherein the time conversion formula is:

[0018]

[0019] Where N 区域i represents the average value of the second load in the i sub-area; N 第一 Represents the first preset load; R 区域i represents the average value of the second speed in region i; R 第一 Indicates the preset first speed; h i Indicates that the engine is at the second speed R 区域i and the second load N 区域i Run a second time.

[0020] In some embodiments, the load-speed coordinate includes a load axis and a speed axis that intersect vertically, the scales on the load axis are multiple load values ​​of the engine, and the scales on the speed coordinate axis are multiple speed values ​​of the engine, including: the load axis of the load-speed coordinate is provided with multiple load scales between 0 and the rated load of the engine, and the speed axis is provided with multiple speed scales between 0 and the rated speed of the engine;

[0021] The coordinate region formed by the load axis and the coordinate axis is divided into a plurality of sub-regions, including:

[0022] The load axis having a portion ranging from 0 to rated load is divided into three equal parts by three first dividing lines perpendicular to the load axis, and the speed axis having a portion ranging from 0 to rated speed is divided into three equal parts by three second dividing lines perpendicular to the speed axis; the load axis, the speed axis, the first dividing lines and the second dividing lines intersect with each other to divide the coordinate area into 9 sub-areas.

[0023] In some embodiments, comparing the relative running time with the first time and outputting corresponding reminder information based on the comparison result includes:

[0024] determining a difference between the first time and the relative running time,

[0025] If the difference is greater than a preset threshold, a safety reminder message is output;

[0026] If the difference is less than or equal to a preset threshold, an alarm reminder message is output.

[0027] A second aspect provides a valve oil seal wear monitoring device, comprising:

[0028] A reference acquisition unit is used to acquire a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed;

[0029] A parameter collection unit, used for collecting a second load and a second speed during the operation of the engine and a second time during which the engine operates at the second load and the second speed;

[0030] a time calculation unit, configured to calculate the relative running time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative running time is defined as: a state in which the engine runs at the first load and the first speed for the relative running time is equivalent to a state in which the engine runs at the second load and the second speed for a second time;

[0031] The wear alarm unit is used to compare the relative running time with the first time and output corresponding reminder information based on the comparison result.

[0032] The third aspect provides a computer device, including a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the above-mentioned valve oil seal wear monitoring method.

[0033] In a fourth aspect, a storage medium storing computer-readable instructions is provided. When the computer-readable instructions are executed by one or more processors, the one or more processors execute the steps of the above-mentioned valve oil seal wear monitoring method.

[0034] A fifth aspect provides a computer program product, comprising a computer program, which implements the above method when executed by a processor.

[0035] The above-mentioned valve oil seal wear monitoring method, device, computer equipment, storage medium and computer program, the method first obtains the first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed; secondly, collects the second load and the second speed during the operation of the engine and the second time when the engine runs at the second load and the second speed; calculates the relative operation time of the engine according to the second load, the second speed and the second time of the engine; finally, the relative operation time is compared with the first time, and the corresponding reminder information is output based on the comparison result. The method first presets a reference system, which includes: a fixed load, a fixed speed and the first time required for the engine to reach the valve oil seal wear when the engine maintains the fixed speed and the fixed load. The state reached by the actual operation of the engine is equivalent to the state reached by the relative operation time of the engine running at the fixed load and the fixed speed. By comparing the relative operation time and the first time, it is determined whether the valve oil seal of the engine has reached the wear limit. Therefore, without introducing additional sensors, the method can give early warning and prompts to the user before the valve oil seal of the engine reaches the wear limit, thereby ensuring the normal operation of the engine. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a curve showing the change of engine oil consumption as valve seal wears out;

[0037] Figure 2 is a flow chart of a valve oil seal wear monitoring method in one embodiment;

[0038] Figure 3 A logic diagram of a valve oil seal wear monitoring method in one embodiment;

[0039] Figure 4 A diagram showing a sub-region division of a coordinate region of a load-speed coordinate in one embodiment;

[0040] Figure 5 Another sub-region division diagram of the coordinate region of the load-speed coordinate in one embodiment;

[0041] Figure 6 FIG. 4 is a structural block diagram of a valve oil seal wear monitoring device in one embodiment. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] It is understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but unless otherwise specified, these elements are not limited by these terms. These terms are only used to distinguish a first element from another element. For example, the first xx may be referred to as the second xx, and similarly, the second time may be referred to as the first time without departing from the scope of this application.

[0044] like Figures 2 to 5 As shown, in one embodiment, a valve oil seal wear monitoring method is proposed, and the valve oil seal wear monitoring method can be applied to the ECU of the engine, such as Figure 2 Specifically, the following steps may be included:

[0045] Step 201, obtaining a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed;

[0046] Since one of the main indicators of engine valve seal wear is the continuously increasing rate of oil consumption, valve seal wear here refers to the valve seal reaching the wear limit, that is, the engine oil consumption continues to increase.

[0047] In some application scenarios, the above step 201 may include: operating the engine at a first load and a first speed, collecting the engine oil consumption rate in real time, and determining the first time required for valve oil seal wear according to the oil consumption rate.

[0048] Here, the first time in "determining the first time required for valve seal wear based on the oil consumption rate" refers to the time from the time when the engine starts running at the first load and the first speed to the time when the oil consumption rate of the engine starts to continuously increase.

[0049] Furthermore, in the above step 201, obtaining a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed may include:

[0050] Collect the first time required for the engine's valve oil seal to wear when the engine is running at rated load and rated speed.

[0051] It is understandable that the engine is easy to operate and control when it runs at rated load and rated speed. The rated load here can be the rated torque of the engine, and the rated speed refers to the rated linear speed of the engine. The specific collection method can be that the first time required for the valve oil seal to wear when the engine runs at rated speed and rated load can be measured by the valve oil seal component test bench. The operation here can be continuous operation of the engine or intermittent operation. The first time is the time when the engine is in operation.

[0052] Step 202, collecting a second load and a second speed during the operation of the engine and a second time during which the engine operates at the second load and the second speed;

[0053] In this step, the load value and speed of the engine currently running can be collected and recorded at preset time intervals. The specific time scale can be set according to specific needs. For example, the time interval can be 30 minutes, 1 hour or 2 hours.

[0054] Step 203, calculating the relative running time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative running time is defined as: the state of the engine running at the first load and the first speed for the relative running time is equivalent to the state of the engine running at the second load and the second speed for the second time;

[0055] In principle, the wear of the valve oil seal is positively correlated with the engine's load, speed and time. Therefore, in this step, the valve oil seal will have a certain amount of wear (first wear) after the engine runs at the second load and the second speed for the second time. The relative running time essentially represents how long the engine runs at the first load and the first speed for the wear of the valve oil seal to reach the above-mentioned first wear.

[0056] In some application scenarios, calculating the relative running time of the engine according to the second load, the second speed and the second time of the engine in step 203 may include:

[0057] Step 2031, constructing a load-speed coordinate, wherein the load-speed coordinate includes a load axis and a speed axis that intersect vertically, the scale on the load axis is a plurality of load values ​​of the engine, the scale on the speed coordinate axis is a plurality of speed values ​​of the engine, and the coordinate region formed by the load axis and the coordinate axis is divided into a plurality of sub-regions;

[0058] It can be understood that the constructed load-speed coordinate is a virtual coordinate, which is only used to facilitate the display of the calculation process of the relative running time of this application.

[0059] The load-speed coordinate includes a load axis and a speed coordinate that intersect horizontally and vertically (the load axis may be vertical and the speed coordinate may be horizontal), there are multiple load values ​​on the load axis, there are multiple speed values ​​on the speed coordinate, and the coordinate area refers to a first area line that passes through the maximum load value on the load axis and is parallel to the speed axis, a second area line that passes through the maximum speed value on the speed axis and is parallel to the load axis, and an area that is crossed and covered by the load axis and the speed axis. The coordinate area is divided into multiple sub-areas, which means that the coordinate area is divided into at least two sub-areas.

[0060] In some specific application scenarios, such as Figure 4 As shown, the load-speed coordinate in step 2031 includes a load axis and a speed axis that intersect vertically, the scales on the load axis are multiple load values ​​of the engine, and the scales on the speed coordinate axis are multiple speed values ​​of the engine, which may include: the load axis of the load-speed coordinate is provided with multiple load scales between 0 and the rated load of the engine, and the speed axis is provided with multiple speed scales between 0 and the rated speed of the engine;

[0061] The coordinate region formed by the load axis and the coordinate axis is divided into multiple sub-regions, which may include:

[0062] The load axis has a portion from 0 to rated load and is divided into three equal parts by three first dividing lines perpendicular to the load axis. The speed axis has a portion from 0 to rated speed and is divided into three equal parts by three second dividing lines perpendicular to the speed axis. The load axis, speed axis, first dividing lines and second dividing lines intersect to divide the coordinate area into 9 sub-areas. The distribution diagram of the actual engine torque (x-axis) and speed (y-axis) used by the user is divided into 9 step areas according to the three steps of low, medium and high, corresponding to the 9 areas of engine operation.

[0063] In other specific application scenarios, such as Figure 5 As shown, the coordinate area formed by the load axis and the coordinate axis is divided into multiple sub-areas, which may also include:

[0064] The load axis has a portion from 0 to rated load and is divided into four equal parts by four first dividing lines perpendicular to the load axis; the speed axis has a portion from 0 to rated speed and is divided into three equal parts by three second dividing lines perpendicular to the speed axis; the load axis, the speed axis, the first dividing lines and the second dividing lines intersect with each other to divide the coordinate area into 12 sub-areas.

[0065] Of course, the coordinate area can be divided in a corresponding manner according to specific needs, and the coordinate area does not have to be divided evenly.

[0066] Step 2032, determining a sub-region where a second load and a second speed are located during the operation of the engine and a second time in the sub-region;

[0067] It can be understood that the second load and the second speed are real-time operating states during the operation of the engine, and the sub-region where the second load and the second speed are located refers to the sub-region where the coordinate points of the second load and the second speed in the load-speed coordinate are located. Figure 4 As shown, the second load is x1, the second speed is y1, then the sub-region where the second load x1 and the second speed y1 are located is sub-region 2; the second load is x2, the second speed is y2, then the sub-region where the second load x2 and the second speed y2 are located is sub-region 2. Figure 5 As shown, the second load is x3 and the second speed is y3, then the sub-region where the second load x3 and the second speed y3 are located is sub-region 7. The sub-region where the second load and the second speed are located and the second time in the sub-region refer to the second load and the second speed duration in the same sub-region. Figure 4 As shown, when the engine runs at the second load x1 and the second speed y2 for a duration of t1, the second load x1 and the second speed y1 are in sub-area 2; when the engine runs at the second load x2 and the second speed y2 for a duration of t2, the second load x2 and the second speed y2 are also in sub-area 2. At this time, the second time of sub-area 2 is the sum of t1 and t2, that is, the second time of each sub-area is the time when the second load and the second speed fall in the sub-area.

[0068] Step 2033: Based on a preset time conversion formula, the relative running time of the engine is obtained according to the average value of the second load in each sub-area, the average value of the second speed in each sub-area, and the second time in each sub-area; wherein the time conversion formula is:

[0069]

[0070] Where N 区域i represents the average value of the second load in the i sub-area; N 第一 Represents the first preset load; R 区域i represents the average value of the second speed in region i; R 第一 Indicates the preset first speed; h i Indicates that the engine is at the second speed R 区域i and the second load N 区域i Run a second time.

[0071] It is understandable that it is impossible for the engine to maintain a constant speed and load during actual operation. Therefore, in this step, the pre-divided sub-areas are used as division units, and the ratio of the average value of the second load in each sub-area to the preset first load and the ratio of the average value of the second speed in the sub-area to the preset second load can be obtained to obtain the ratio of the wear of the valve oil seal due to the second load and the second speed in the area to the wear of the first load and the first speed. Therefore, multiplying it by the time when the engine is in the sub-area can obtain the relative running time with the second load and the second speed in the area. Finally, the sum of the relative running times of all sub-areas is the final relative running time.

[0072] Step 204: compare the relative running time with the first time, and output corresponding reminder information based on the comparison result.

[0073] In some application scenarios, such as Figure 3 As shown, the above step 204 may include:

[0074] Step 2041: determine the difference between the first time and the relative running time.

[0075] The difference between the first time and the relative running time is the first time minus the relative running time, and the difference indicates how long the valve oil seal is away from the possible wear limit.

[0076] Step 2042: if the difference is greater than a preset threshold, output a safety reminder message;

[0077] The preset threshold value may be set according to actual conditions, and a value greater than the preset threshold value indicates that the life of the valve oil seal is still very long.

[0078] Step 2043: If the difference is less than or equal to the preset threshold, an alarm reminder message is output.

[0079] If the difference is less than or equal to the preset threshold, it means that the valve oil seal is not far from the possible wear limit or has reached the wear limit.

[0080] like Figure 6 As shown, in one embodiment, a valve oil seal wear monitoring device is provided, which may specifically include:

[0081] Referring to the acquisition unit 611, it is used to acquire a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed;

[0082] A parameter collection unit 612 is used to collect a second load and a second speed during the operation of the engine and a second time during which the engine runs at the second load and the second speed;

[0083] The time calculation unit 613 is used to calculate the relative running time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative running time is defined as: the state of the engine running at the first load and the first speed for the relative running time is equivalent to the state of the engine running at the second load and the second speed for the second time;

[0084] The wear alarm unit 614 is used to compare the relative running time with the first time, and output corresponding reminder information based on the comparison result.

[0085] In one embodiment, a computer device is proposed. The computer device may include a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the following steps are implemented: obtaining a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed; collecting a second load and a second speed during the operation of the engine and a second time when the engine runs at the second load and the second speed; calculating the relative operating time of the engine according to the second load, the second speed, and the second time of the engine; wherein the relative operating time is defined as: the state of the relative operating time when the engine runs at the first load and the first speed is equivalent to the state of the engine running at the second load and the second speed for the second time; comparing the relative operating time with the first time, and outputting corresponding reminder information based on the comparison result.

[0086] In one embodiment, a storage medium storing computer-readable instructions is proposed. When the computer-readable instructions are executed by one or more processors, the one or more processors perform the following steps: obtaining a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed; collecting a second load and a second speed during the operation of the engine and a second time when the engine runs at the second load and the second speed; calculating the relative operating time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative operating time is defined as: the state of the relative operating time of the engine running at the first load and the first speed is equivalent to the state of the engine running at the second load and the second speed for the second time; comparing the relative operating time with the first time, and outputting corresponding reminder information based on the comparison result.

[0087] In one embodiment, a computer program product is proposed, including a computer program, which, when executed by a processor, performs the following steps: obtaining a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed; collecting a second load and a second speed during the operation of the engine and a second time when the engine runs at the second load and the second speed; calculating the relative operating time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative operating time is defined as: the state of the relative operating time when the engine runs at the first load and the first speed is equivalent to the state of the engine running at the second load and the second speed for the second time; comparing the relative operating time with the first time, and outputting corresponding reminder information based on the comparison result.

[0088] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the aforementioned storage medium can be a non-volatile storage medium such as a disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

[0089] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A valve oil seal wear monitoring method, characterized in that: The method comprises: Obtaining a first time required for a valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed; collecting a second load and a second speed during the operation of the engine and a second time during which the engine operates at the second load and the second speed; Calculating the relative running time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative running time is defined as: the state in which the engine runs at the first load and the first speed for the relative running time is equivalent to the state in which the engine runs at the second load and the second speed for the second time; Comparing the relative running time with the first time, and outputting corresponding reminder information based on the comparison result; The calculating the relative running time of the engine according to the second load, the second speed and the second time of the engine comprises: Constructing a load-speed coordinate, wherein the load-speed coordinate includes a load axis and a speed axis that intersect vertically, the scale on the load axis is a plurality of load values ​​of the engine, the scale on the speed coordinate axis is a plurality of speed values ​​of the engine, and the coordinate region formed by the load axis and the coordinate axis is divided into a plurality of sub-regions; determining a sub-region in which the second load and the second speed of the engine are located and a second time in the sub-region; Based on a preset time conversion formula, the relative running time of the engine is obtained according to the average value of the second load in each sub-area, the average value of the second speed in each sub-area and the second time in each sub-area; wherein the time conversion formula is: Where N 区域i represents the average value of the second load in the i sub-area; N 第一 Represents the first load as preset; R 区域i represents the average value of the second speed in region i; R 第一 Indicates the preset first speed; h i Indicates that the engine is at the second speed R 区域i and the second load N 区域i Run a second time.

2. The valve oil seal wear monitoring method according to claim 1, characterized in that: The step of obtaining a first time required for a valve oil seal of the engine to wear when the engine is running at a preset first load and a first speed includes: The first time required for the valve oil seal of the engine to wear when the engine runs at a rated load and a rated speed is collected.

3. The valve oil seal wear monitoring method according to claim 1, characterized in that: The step of obtaining a first time required for a valve oil seal of the engine to wear when the engine is running at a preset first load and a first speed includes: The engine is operated at the first load and the first speed, an oil consumption rate of the engine is collected in real time, and a first time required for the valve oil seal to wear is determined according to the oil consumption rate.

4. The valve oil seal wear monitoring method according to claim 1, characterized in that: The load-speed coordinate system includes a load axis and a speed axis that intersect vertically, the scales on the load axis are multiple load values ​​of the engine, and the scales on the speed coordinate axis are multiple speed values ​​of the engine, including: the load axis of the load-speed coordinate system is provided with multiple load scales between 0 and the rated load of the engine, and the speed axis is provided with multiple speed scales between 0 and the rated speed of the engine; The coordinate region formed by the load axis and the coordinate axis is divided into a plurality of sub-regions, including: The load axis having a portion ranging from 0 to rated load is divided into three equal parts by three first dividing lines perpendicular to the load axis, and the speed axis having a portion ranging from 0 to rated speed is divided into three equal parts by three second dividing lines perpendicular to the speed axis; the load axis, the speed axis, the first dividing lines and the second dividing lines intersect with each other to divide the coordinate area into 9 sub-areas.

5. The valve oil seal wear monitoring method according to claim 1, characterized in that: The comparing the relative running time with the first time and outputting corresponding reminder information based on the comparison result includes: determining a difference between the first time and the relative running time, If the difference is greater than a preset threshold, a safety reminder message is output; If the difference is less than or equal to a preset threshold, an alarm reminder message is output.

6. A valve oil seal wear monitoring device, characterized in that: include: A reference acquisition unit is used to acquire a first time required for the valve oil seal of the engine to wear when the engine runs at a preset first load and a first speed; A parameter collection unit, used for collecting a second load and a second speed during the operation of the engine and a second time during which the engine operates at the second load and the second speed; a time calculation unit, configured to calculate the relative running time of the engine according to the second load, the second speed and the second time of the engine; wherein the relative running time is defined as: a state in which the engine runs at the first load and the first speed for the relative running time is equivalent to a state in which the engine runs at the second load and the second speed for a second time; a wear alarm unit, used for comparing the relative running time with the first time, and outputting corresponding reminder information based on the comparison result; The time calculation unit is further used to construct a load-speed coordinate, wherein the load-speed coordinate includes a load axis and a speed axis that intersect vertically, the scale on the load axis is a plurality of load values ​​of the engine, the scale on the speed coordinate axis is a plurality of speed values ​​of the engine, and the coordinate area formed by the load axis and the coordinate axis is divided into a plurality of sub-areas; determining a sub-region in which the second load and the second speed of the engine are located and a second time in the sub-region; Based on a preset time conversion formula, the relative running time of the engine is obtained according to the average value of the second load in each sub-area, the average value of the second speed in each sub-area and the second time in each sub-area; wherein the time conversion formula is: Where N 区域i represents the average value of the second load in the i sub-area; N 第一 Represents the first preset load; R 区域i represents the average value of the second speed in region i; R 第一 Indicates the preset first speed; h i Indicates that the engine is at the second speed R 区域i and the second load N 区域i Run a second time.

7. A computer device, characterized in that: It comprises a memory and a processor, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the processor executes the steps of the valve oil seal wear monitoring method according to any one of claims 1 to 5.

8. A storage medium storing computer-readable instructions, characterized in that: When the computer-readable instructions are executed by one or more processors, the one or more processors execute the steps of the valve oil seal wear monitoring method according to any one of claims 1 to 5.

9. A computer program product, characterized in that A computer program is included which, when executed by a processor, implements the method according to any one of claims 1 to 5.

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