- 作者: CHENG-HO HSU, YO-CHUN YEH, AND ZHI-REN YANG
- 中文摘要: Epicyclic gear trains for multi-speed automotive automatic transmissions are rotationally non-isomorphic and contain at least four coaxial links, at most three planet gears, no embedded structure, no redundant planet gears, and no floating carriers. This purpose of this paper is to present an efficient methodology for systematic enumeration of multi-speed epicyclic gear mechanisms. First, an approach is proposed to enumerate all the admissible acyclic graphs. Next, the acyclic graph method is applied to enumerate all the displacement graphs of epicyclic gear mechanisms for each admissible acyclic graph. Then, a computer program which has been successfully developed for automatic enumeration of the displacement graphs of epicyclic gear mechanisms is presented. Finally, we present an atlas of promising epicyclic gear mechanisms with four, five and six coaxial links. The results of this study will provide a useful database for the creation of new multi-speed automotive automatic transmissions.
- 英文摘要: --
- 中文關鍵字: automatic transmission, epicyclic gear mechanism, graph theory
- 英文關鍵字: --