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Engine lubricating oil change period prediction method

A technology of oil change interval and prediction method, applied in the field of lubricating oil, can solve problems such as waste of engine lubricating oil, and achieve the effect of simple formula and high precision

Active Publication Date: 2020-05-01
WUHAN RES INST OF MATERIALS PROTECTION
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Problems solved by technology

[0005] In view of the above ideas, the purpose of the present invention is to provide a method for predicting the engine lubricating oil change cycle, to solve the serious problem of motor vehicle engine lubricating oil waste in the prior art

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  • Engine lubricating oil change period prediction method

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Embodiment Construction

[0028] The present invention is illustrated below in conjunction with the accompanying drawings.

[0029] The invention provides a method for predicting the oil change interval of engine lubricating oil, the specific method is as follows:

[0030] 1. Test object selection. The present invention selects 7 civil cars operated under conventional urban working conditions as test objects, and carries out long-term operation status and lubricating oil performance tracking and monitoring. The basic information of the test vehicle, the brand and type of lubricating oil used, the total running mileage and the total running time are shown in Table 1. The test vehicle is used completely according to the wishes of the owner without any additional requirements. Take test oil samples from the crankcase of the test vehicle at regular intervals (about once a month) according to the specific operating conditions of the vehicle until the end of the test. Use NETZSCH HP204 high pressure differ...

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Abstract

The invention discloses an engine lubricating oil change period prediction method, which comprises the following steps of: selecting an initial oxidation temperature as a lubricating oil quality reference index, i.e., when the initial oxidation temperature of lubricating oil reaches a certain threshold value, replacing, and selecting running mileage and running time as visual reference indexes ofengine oil change; establishing a multiple linear regression model of the lubricating oil quality by taking the initial oxidation temperature as a dependent variable and taking the running mileage andthe running time of the motor vehicle as independent variables; and calculating the oil change period according to the multiple linear regression model, i.e., the maximum mileage that the motor vehicle can run or the longest running time within the given running mileage within the given time. According to a test data sample obtained by testing, the relation model between the initial oxidation temperature of the lubricating oil and the running mileage and running time of the vehicle is established by adopting a multiple linear regression analysis method, accurate calculation can be performed through the engine oil change period prediction model, a reasonable oil change period is provided, and resources are saved.

Description

technical field [0001] The invention belongs to the technical field of lubricating oil, and relates to a technology for judging the oil change period of engine oil, in particular to a method for predicting the oil change period of engine lubricating oil. Background technique [0002] Automotive lubricating oil mainly refers to engine lubricating oil, which is the key to keep the engine running reliably, reduce the frictional energy loss of the engine, and prevent early wear and tear of engine components. Lubricating oil replacement is also the most frequent item in car maintenance. According to the requirements of 4S stores and car dealers, the oil change interval commonly used for civilian cars in my country is basically 5000km or 6 months. According to statistics on the recommended oil change intervals of 278 civilian cars of different brands in the domestic market, about 56.1% of civilian cars recommend 5000km for engine oil replacement. Among the 109 civilian cars of di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06
CPCG06Q10/04G06Q10/067Y02P90/30
Inventor 李健马利欣段海涛詹胜鹏金永亮马赛赛
Owner WUHAN RES INST OF MATERIALS PROTECTION
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