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Method for establishing engine lubricating oil quality prediction model

A quality prediction and model building technology, applied in the field of lubricating oil, can solve the problem of unpredictable engine lubricating oil quality, and achieve the effect of simple formula and high precision

Active Publication Date: 2020-05-08
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 establishing an engine lubricating oil quality prediction model to solve the problem that the quality of motor vehicle engine lubricating oil cannot problem of prediction

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  • Method for establishing engine lubricating oil quality prediction model
  • Method for establishing engine lubricating oil quality prediction model
  • Method for establishing engine lubricating oil quality prediction model

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Embodiment Construction

[0037] The present invention is illustrated below in conjunction with the accompanying drawings.

[0038] The invention provides a method for establishing an engine lubricating oil quality prediction model, the specific method is as follows:

[0039]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 diff...

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Abstract

The invention discloses a method for establishing an engine lubricating oil quality prediction model. The method comprises steps of selecting the initial oxidation temperature as a lubricating oil quality reference index; selecting N motor vehicles running under conventional urban working conditions as test objects, carrying out long-time running condition and lubricating oil performance trackingmonitoring, carrying out regular sampling, and at least recording the type of used lubricating oil, the total running mileage, the total running time and the initial oxidation temperature of an oil sample; selecting an exponential function to fit the independent variable and the dependent variable; performing linear transformation on the exponential function; introducing intermediate variables, carrying out multiple linear regression analysis on the intermediate variable, the running mileage and the running time, and completing establishment of the engine lubricating oil quality prediction model; by means of the engine lubricating oil quality prediction model established through the method, the relation between the lubricating oil initial oxidation temperature and the vehicle running mileage and running time can be established, the reasonable oil change period is predicted, lubricating oil waste is reduced, 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 quality of engine lubricating oil, in particular to a method for establishing an engine lubricating oil quality prediction model. 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 car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06F17/18
CPCG06Q10/04G06F17/18
Inventor 李健马利欣段海涛贾丹金永亮杨田
Owner WUHAN RES INST OF MATERIALS PROTECTION
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