Method and device for evaluating lubrication state of each position of gearbox and vehicle

Abstract

The invention relates to a method and device for evaluating the lubricating state of each position of a gearbox and a vehicle. A first temperature parameter in a gearbox is acquired through a plurality of first temperature acquisition modules distributed at a meshing gear and a bearing in the gearbox; a second temperature parameter of the environment where the gearbox is located is collected through a second temperature collection module arranged outside the gearbox; correspondingly collecting and storing the collected first temperature parameter and the second temperature parameter; and traversing the first temperature parameter and the second temperature parameter to make a difference, analyzing whether the difference exceeds a preset temperature threshold value, if so, judging that lubrication failure occurs, and if so, judging the position of the lubrication failure according to the position of the first temperature acquisition module with the lubrication failure. The system can sensitively detect the lubrication failure, accurately judge the position of the lubrication failure, and provide vehicle state related data, gearbox oil quantity parameters and spraying lubrication mechanism working state parameters, so that the reason of the lubrication failure can be conveniently analyzed.

Description

technical field [0001] The invention relates to the field of evaluating the lubrication state of a gearbox, in particular to a method, a device and a vehicle for evaluating the lubrication state of each position of a gearbox. Background technique [0002] The internal gear bearings of the gearbox need to work in a lubricated state. During the working process of the gearbox, once the vehicle is currently recognized, the most direct parameter for evaluating the lubrication state of the internal gears and bearings of the gearbox is the temperature during operation. Lack of lubrication or insufficient lubricating oil capacity will cause the temperature in this area to rise sharply. By monitoring local temperature changes, the influence of factors such as gearbox structure design, working conditions, lubricating oil type selection and filling amount calibration on the local lubrication of the gearbox can be reflected, especially the gear tooth profile design and gearbox shell str...

AI Technical Summary

Problems solved by technology

Even such a method is difficult to measure in the actual vehicle road test, because it is too affected by external factors such as the engine heat source, it is impossible to reflect the local lubrication situation by monitoring the gearbox shell temperature in the actual vehicle state

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