Calibration method of engine oil dipstick

Abstract

The invention relates to a calibration method of an engine oil dipstick. The calibration method comprises the steps of: horizontally placing an engine; connecting the lower end of a communicating pipeto an oil pan oil discharging opening of an engine, so that an angle alpha is formed between the communicating pipe and the horizontal plane; injecting a first predetermined amount of engine oil intoan oil pan of the engine; acquiring a distance L1 between an engine oil liquid level in the communicating pipe and a datum point of the communicating pipe on the communicating pipe, wherein the datumpoint on the communicating pipe and a datum point on the engine oil dipstick are positioned on the same horizontal plane; calculating a distance between the engine oil liquid level in the oil pan andthe datum point of the engine oil dipstick on the engine oil dipstick according to a formula L2=(sin alpha*L1) / sin theta, wherein theta is an included angle between the engine oil dipstick and the horizontal plane; and calibrating a corresponding scale line of the first predetermined amount of engine oil on the engine oil dipstick according to the calculated distance L2 between the engine oil liquid level in the oil pan and the datum point of the engine oil dipstick on the engine oil dipstick.

Description

Technical field [0001] The present disclosure relates to the technical field of engine manufacturing, in particular, to a calibration method of an engine oil gauge. Background technique [0002] The engine oil dipstick is used to check the amount of oil in the engine oil pan and the oil level. The oil level must be between the upper and lower marks on the oil dipstick to ensure the normal operation of the engine. If too much oil is added to the engine oil pan and exceeds the upper scale on the oil scale, it will affect the rotation of the crankshaft, thereby increasing the load of the engine and the fuel consumption of the car. If the oil in the engine oil pan is too high If it is less and lower than the lower mark on the oil scale, it may cause insufficient lubrication of the engine, thereby accelerating the wear rate of the engine. Therefore, accurately calibrating the upper and lower scale lines of the oil scale is the basis for effectively controlling the oil filling amount ...

AI Technical Summary

Problems solved by technology

In the process of modeling and calculation through digital simulation software, only the volume of the engine oil pan is considered, while the proportion of the oil filter net, oil pump, and filter in the oil pan is ignored. Therefore, there is a certain deviation between the minimum scale line and the maximum scale line on the oil scale calculated by the digital-analog software and the minimum scale line and the maximum scale line corresponding to the minimum oil volume and maximum oil volume actually required by the engine, so that it cannot Effectively control the filling amount of engine oil and affect the normal operation of the engine

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