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Performance Analysis of the Rubber Belt type CVT System  

Kim, Sung-Mo (서울과학기술대학교 나노 IT 메카트로닉스과)
Zheng, Chun-Hua (서울대학교 기계항공 공학부)
Lim, Won-Sik (서울과학기술대학교 자동차공학과)
Cha, Suk-Won (서울대학교 기계항공 공학부)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.20, no.4, 2011 , pp. 376-381 More about this Journal
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.
Keywords
CVT; Dynamic modeling; Static performance; Simulation; Torque capacity factor;
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