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Quick identification method of engine lubricating oil types

An identification method and lubricating oil technology, applied in special data processing applications, instruments, electrical digital data processing, etc., to achieve the effect of avoiding losses

Inactive Publication Date: 2013-02-20
PETRO OIL & LUBRICANT RES INST OF THE GENERAL LOGISITIC DEPT OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method was not successful in further identifying engine oils as gasoline engine oils, diesel engine oils, and internal combustion engine oils

Method used

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  • Quick identification method of engine lubricating oil types
  • Quick identification method of engine lubricating oil types
  • Quick identification method of engine lubricating oil types

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0044] Example 1: Evaluation of identification variable identification ability

[0045] 1) Collect new oil samples

[0046] Collected 83 internal combustion engine oils with clear type identification, 40 diesel engine oils, 12 gasoline engine oils, and 31 general-purpose internal combustion engine oils. Its manufacturers include Shell, ESSO, Mobil, MOBIL, Great Wall and Kunlun, etc.

[0047] 2) Determination of quality indicators

[0048] Determination of saturated hydrocarbons, aromatics, colloids, total base number, total acid number, pour point, flash point, viscosity at 100°C, viscosity at 40°C, viscosity index, C content, H content, C / H ratio of engine oil using standard methods , S content, N content, Ca content, Mg content, Zn content, P content and other 19 indicators. Table 1 lists the units and standard methods for each quality parameter. The measurement results of various quality indicators of various lubricating oils are shown in Table 2 (due to the huge data, on...

example 2

[0061] Example 2: Determining the number of recognition features and establishing a recognition model

[0062] In the process of pattern recognition, the larger the number of samples / features, the better the robustness of the model, so it is required to reduce the number of features as much as possible without reducing the recognition performance.

[0063] According to the evaluation results of the recognition ability of Example 1 ( figure 1 ), select the top m features with the strongest recognition ability in turn, use the BAYES discriminant method to build a model, and then identify the samples in the training set for inspection, and draw the relationship between the correct recognition rate and the number of recognized features. The results are shown in figure 2 . It can be seen from the figure that when m=9, the recognition rate is the highest, so 9 parameters such as saturated hydrocarbon, aromatic hydrocarbon, total base number, Zn, P, pour point, flash point, viscosi...

example 3

[0067] Example 3 Identification of Unknown Diesel Engine Oil Samples

[0068] Select 1 diesel engine oil as target identification lubricating oil, adopt the method of the present invention to carry out identification verification, identification steps are as follows:

[0069] (1) Determination of its physical and chemical indicators, the results are shown in Table 5 (in actual operation, only 9 indicators such as saturated hydrocarbons, aromatic hydrocarbons, total base number, Zn, P, pour point, flash point, viscosity index and 40 °C viscosity index were measured. on the line).

[0070] table 5

[0071] Viscosity at 40°C

/ mm 2 / s

Viscosity at 100°C

/ mm 2 / s

viscosity

index

saturated

Hydrocarbons / %

Aromatics

/ %

colloid

/ %

total base number

/ mgKOH /

g

Flash point

/ °C

pour point

/ ℃

total acid value

/ mgKOH /

g

138.7

13.99 ...

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Abstract

The invention discloses a quick identification method of engine lubricating oil types, comprising the following steps: collecting a representative sample as a training set; measuring the quality index of the training set sample, and taking the quality index as a characteristic variable; building an identification model of the engine lubricating oil type; for the identification of the engine lubricating oil type to be measured, firstly, measuring the quality index of the sample, and then utilizing the identification model to indentify types. The method of the invention can quickly identify unknown engine lubricating oil samples as diesel engine oil, gasoline engine oil and general internal combustion engine oil, guides the correct utilization of the engine lubricating oil and avoids loss caused by misusing oil.

Description

technical field [0001] The invention relates to a method for quickly identifying types of engine lubricating oil, in particular to a method for quickly identifying diesel engine oil, gasoline engine oil and general internal combustion engine oil. Background technique [0002] There are many kinds of lubricating oil, such as engine oil, gear oil and hydraulic oil. Each type of lubricant contains a variety of viscosity grades and quality grades. According to the use, engine oil is further divided into gasoline engine oil, diesel engine oil and general internal combustion engine oil. Each type of engine oil cannot be mixed with each other, otherwise it will cause engine failure or even damage the engine. However, in actual use, due to various reasons, there is often a phenomenon of mixed use of lubricating oil types. Therefore, it is necessary to develop a rapid identification method for lubricating oil types, correctly guide the correct use of oil, and avoid losses caused b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/30G06F19/00
Inventor 田高友易如娟褚小立
Owner PETRO OIL & LUBRICANT RES INST OF THE GENERAL LOGISITIC DEPT OF PLA