2011•Journal of the korean society of manufacturing technology engineersRequires access

Performance Analysis of the Rubber Belt type CVT System

Sung-Mo Kim, Chunhua Zheng, Wonsik Lim, Suk Won

Abstract

CVT(Continuously Variable Transmission) is one of the most promising candidates for the future automobile transmission because of its continuously variable gear ratio and reduced shift shock. It is also possible to operate the power source at its high efficiency region with CVT. The CVT system consists of thrust plate, driving pulley, belt, driven pulley, and preload spring of output shaft. In this paper, the dynamic modeling of a CVT system is completed to obtain the static performances of CVT system. A simulator is implemented on Matlab(Simulink), which can analyse the static performances of a CVT system. The methods for improving the total efficiency of a motorcycle system are also proposed based on the simulation results. In this study we increase the capacity factor of CVT up to the three times of default specification.

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Key concepts: Pulley, Continuously variable transmission, Automotive engineering, Engineering, Thrust, MATLAB, Transmission (telecommunications), Shock (circulatory)