Lubricating oil service life detection method, device and system for engine

Abstract

The invention provides a lubricating oil service life detection method and device for an engine. The method includes the steps that after the engine is started, when the rotating speed of the engine is lower than a preset rotating speed, the temperature and pressure of lubricating oil are detected; when the temperature is higher than a preset temperature and the pressure is lower than preset pressure, at least two sets of working condition parameters are obtained, and the working condition parameters comprise the rotating speed of the engine and the pressure and the temperature of the lubricating oil; by means of the measured working condition parameters, the viscosity of the lubricating oil is obtained according to the relations between the viscosity of the lubricating oil and the rotating speed, the temperature and the pressure; and according to the viscosity of the lubricating oil, the service life of the lubricating oil is determined. According to the embodiment, online detection of the service life of the lubricating oil is achieved, a detection result can be obtained in time, and detection time is shortened.

Description

[0001] This application claims the priority of the Chinese patent application submitted to the China Patent Office on April 28, 2015, with the application number 201510208763.X, and the title of the invention is "Method, Device and System for Lubricating Oil Life Testing of Engines", the entire contents of which are passed References are incorporated in this application. technical field [0002] The invention relates to the technical field of analysis and measurement, in particular to a method for detecting the life of lubricating oil of an engine, and also relates to a device and a system for detecting the life of lubricating oil of an engine. Background technique [0003] When the engine is working and many transmission parts are moving relative to each other, there is only a very small gap between the transmission parts. Although the transmission parts are all finished, there are still uneven parts on the surface when zoomed in. If not lubricated, there will be strong fri...

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Problems solved by technology

[0005] However, due to the relatively harsh working conditions of the lubricating oil in the engine, the lubricating oil will gradually age after long-term use, lose its original effect, affect the use of the engine, and need to be replaced with new lubricating oil

[0006] In the prior art, the method of determining the timing of lubricating oil replacement is to sample the lubricating oil being used, and use the physical and chemical analysis technology of the laboratory to conduct a comprehensive analysis of the samples to obtain information on the lubrication and wear conditions of the equipment, so as to determine the The life of the lubricating oil determines whether it is necessary to change the oil, but this method has a long detection cycle, which leads to the inability to change the oil in time, which will still affect the use of the engine

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