Creative Design on an Electronically-Controlled Continuously Variable Transmission

• Main Authors: HuangDeng-Jin, 黃登進
• Other Authors: Shang-Chen Wu
• Format: Others
• Published: 2007
• Online Access: http://ndltd.ncl.edu.tw/handle/91775318769561790063

碩士 === 崑山科技大學 === 機械工程研究所 === 95 === This research is mainly on the creative designing of electronically- controlled continuously variable transmission (ECVT) for motorcycles, and aim to get rid of the constant speed ratio curve restriction of the traditional CVT. Part of the engine power is transmitted to the transmission system for speed ratio change. A synchronous mechanism is use to reach the function of engage and disengage which is accomplished via a step motor. A power screw is used to actuate the movable sheave of the driving pulley to change the speed ratio. The computer software MATLAB/Simulink is used in this research for analyzing the performance of the electronically controlled continuously variable transmission system. Speed ratio change curve of the original CVT system is simulated by using the ECVT system. Simulation for Time Constant and Time Delay of the ECVT system is also made for better understand the ability of the ECVT system. Power consumption of the ECVT system is evaluated prior to calculate the vehicle acceleration in order to analyze the performance of the transmission system. Experiments using motor as power source which is split into power screw and transmission system are used to verify accuracy of the simulation.