Measurement Method for Piston Assembly-Cylinder Friction Force Based on Wireless Transmission in an Internal Combustion Engine

Abstract

Abstract:

The principle of the indicated mean effective pressure (IMEP) method to measure the piston assemblycylinder friction was derived, and the method for calculation of the inertia force of piston assembly and connecting rod was obtained. Then, a reliable transmission of connecting rod stress signal was achieved using wireless transmission method, and piston assemblycylinder friction forces were measured at a range of engine operating speed under motored conditions.

Key words: combustion engine, piston assembly； friction force； indicated mean effective pressure (IMEP)； wireless transmission

CLC Number:

NING Lipu,MENG Xianghui,XIE Youbai. Measurement Method for Piston Assembly-Cylinder Friction Force Based on Wireless Transmission in an Internal Combustion Engine[J]. Journal of Shanghai Jiaotong University, 2014, 48(09): 1297-1302.

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