- 學位論文
電子控制式無段變速系統應用於速可達機車之研究
The Study of Electronically Controlled Continuously Variable Transmission System Utilized in Scooter
摘要
綜觀目前市面上的一般速可達機車無段變速系統（Continuously Variable Transmission，CVT）在遇到不同路況時需要改變減速比來達到變速的效果，而要改變減速比則需要靠離心滾子的作動，也就是說傳統的CVT是處於被動式的變速。本研究係利用電子控制式無段變速系統（Electronically Controlled Continuously Variable Transmission，E-CVT）並將傳統的拉線式化油器搭配步進馬達，變成電子節氣門，透過各個感測器取得內燃機轉速、車速、電子把手開度等訊號，回傳給微電腦晶片，經過裡面的程式處理之後由控制器依照駕駛者的操作送出訊號，控制E-CVT的馬達轉動滾珠導螺桿來改變減速比，且使內燃機維持固定轉速，能保持較佳的性能輸出，如此可減少動力傳遞時的損失，提升能源效益。本研究利用光陽機車TECHNO 150搭配電動缸組成的電子控制式無段變速系統、電子把手及電子節氣門等所組成的實驗平台，並使用微電腦晶片當主體的控制器，由駕駛者的操作控制E-CVT並自動調整電子節氣門上的馬達改變開度，達到改變減速比及維持內燃機轉速，並根據系統操作流程，進行變速及改變內燃機轉速，可以使內燃機維持在較佳的操作點上。
並列摘要
Looking at the current market generally scooters’ continuously variable transmission（CVT）system in the face of different road conditions need to change the gear ratio to achieve the variable speed of effect, to change the gear ratio is required to rely on centrifugal roller actuator, that is the traditional CVT system in a passive variable speed. In this study, the use of electronically controlled continuously variable transmission（E-CVT）and the traditional pull-type carburetor with a stepper motor into the electronic throttle, through a variety of sensors to obtain the signal of the internal combustion engine speed, vehicle speed, electronic handle opening, etc, back to the microcomputer chip, after which the program processed by the controller in accordance with the driver's operation sends a signal, control of the E-CVT motor rotating the ball screw to change the gear ratio, and make the internal combustion engine able to maintain better performance output to maintain a fixed speed, so can reduce power transmission losses, improve energy efficiency. In this study, using KYMCO TECHNO 150 with electric cylinder composed of electronically controlled transmission system, electronic handle, electronic throttle composition of the experimental platform and use of the microcomputer chip when the main controller, E-CVT control by the driver's operation and automatically adjusts the electronic throttle on the electronic throttle on the motor to change the opening, reach to change the gear ratio and maintenance of the engine speed, and in accordance with the system operating procedures, conduct variable speed and change the internal combustion engine speed, can make the internal combustion engine to maintain better operating point.