- 學位論文
車用行星齒輪式無段變速系統之研究
Study of Planetary Gears type-Continuously Variable Transmission System for Vehicle
摘要
無段變速系統一直是車輛傳動系統研發的目標，許多車廠不斷改良及投入新型設計，為的就是要節省能源、降低環境汙染及提升舒適性。目前應用最廣的車輛無段變速系統仍是以皮帶盤式或鋼帶式為主，但無法使用於較大排氣量之車輛。本研究利用齒輪嚙合較具有高效率的特點，選用行星齒輪，並利用其機構中兩個自由度的特性來達成無段變速。其構想採用雙動力源來驅動，一為主要動力源，另一動力源使用直流馬達，利用控制馬達的轉速來實現無段變速。本研究提出六種連接方式，並針對其中一種連接方式詳細討論，結果顯示行星齒輪式無段變速系統的架構構緊湊不需較大空間、由於使用齒輪嚙合傳動，和一般車用無段變速系統相比傳動效率更佳。
並列摘要
The Continuously Variable Transmission system is always the vehicles research and development goal, many vehicle manufactories unceasing to improve and invest new design to save energy, reduce environmental pollution and promotion comfortableness. The currently applied the broadest Continuously Variable Transmission system was still by the belt type or steel-belt type, but it’s unable to use in larger power vehicles. In this study, by using gear meshing has the high efficiency characteristic, so selects the planetary gear, and two degrees of freedom characteristics achieves using its organization in Continuously Variable Transmission. The conception uses the double power supply to actuate, one is the main power supply, another power is DC motor, and in order to achieve continuously variable speed by controls DC motor rotational speed. The study provides six connection methods, and aims at one kind of connection method detailed discussion. The result shows the Planetary Gear Continuously Variable Transmission system with compact structure does not to waste too much spare. Because of using the gear meshing transmission, so it has better transmission efficiency than the common vehicle with the Continuously Variable Transmission system.