Engine oil consumption real-time testing method and device

Abstract

The invention discloses an engine oil consumption real-time testing method, and relates to the technical field of engine detection. The technical problems of low degree of accuracy and large error ofexisting technology testing are solved. The engine oil consumption real-time testing method comprises the steps that engine oil is added into an engine, a liquid level in the engine is fed back in real time, and the engine is started for testing; the following process is repeated until the testing is finished, specifically, the engine oil consumed in the testing process is supplemented for the engine in real time according to the initial liquid level in the engine, so that the engine oil in the engine keeps the initial liquid level, and the supplemented engine oil quantity is monitored in realtime; and the testing is finished, and monitoring data for the engine oil quantity is output. The invention further discloses an engine oil consumption real-time testing device. The structure is simple, equipment such as an oil pump and a frequency converter are not needed, complex staking-work is further not needed in use, using is simple, the testing degree of accuracy is high, and the testingerror is small.

Description

technical field [0001] The invention relates to the technical field of engine detection, more specifically, it relates to a method and device for real-time testing of engine oil consumption. Background technique [0002] Engine oil consumption is one of the important indicators of an engine, and a newly developed engine must be tested for engine oil consumption. The current mainstream test method is the oil drain weighing method. The specific method is to weigh the weight of the engine oil to be added to the engine, then add the engine oil to the engine, and make the engine run under the specified working conditions and within the specified time; After the operation is completed, the engine oil is discharged and weighed. The added oil weight minus the drained weight is the oil consumption of the engine under specified operating conditions. [0003] However, the results measured by the oil discharge weighing method have relatively large errors, mainly due to the following r...

AI Technical Summary

Problems solved by technology

[0005] Although this public document can measure the oil consumption of the engine in real time, it has the following defects: 1. The structure of the invention is complicated, and two special oil pumps and two frequency converters need to be used for control to keep the oil quantity in the engine oil pan constant. The cost is high; 2. Due to the different oil consumption of different engines, it is necessary to calibrate the control frequency of the frequency converter before testing the oil consumption of different engines, otherwise it is impossible to ensure a constant oil volume in the oil pan; 3. During the operation of the engine, the oil The engine oil in the sump fluctuates violently due to the agitation of the crank, and is not constant, so the oil suction pump described in this invention may be sucked empty, resulting in fluctuations in the amount of oil sucked back into the oil pot, resulting in measurement errors

Images