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Systematic Design of Four-Speed Ravigneaux-Type Automatic Transmissions

机译:四速Ravigneaux型自动变速器的系统设计

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摘要

This paper presents an efficient methodology for the systematic design of four-speed Ravigneaux-type automatic transmissions associated with the clutching sequence tables. First, the corresponding speed ratio equations of the seven-link Ravigneaux gear mechanism are derived by the concept of basic gear ratios of fundamental gear entities. Next, a methodology for the synthesis of all the clutching sequence tables of the Ravigneaux gear mechanisms is described. Then, a graph representation is proposed to embody the corresponding schematic of an automatic transmission by combining the associated clutches into the epicyclic gear mechanism. Finally, the analytic method presented by Hsu is applied to determine the numbers of teeth of all the gears for each concept. In this paper, the atlas of four four-speed Ravigneaux-type automatic transmissions has been synthesized in an efficient way.
机译:本文提出了一种有效的方法,用于与离合顺序表相关的四速Ravigneaux型自动变速器的系统设计。首先,通过基本齿轮机构的基本传动比的概念,得出了七连杆拉维尼奥传动机构的相应速比方程。接下来,描述用于综合拉威挪齿轮机构的所有离合顺序表的方法。然后,提出一种图表表示法,通过将相关的离合器组合到行星齿轮传动机构中来体现自动变速器的相应示意图。最后,采用Hsu提出的解析方法来确定每个概念的所有齿轮的齿数。在本文中,以有效的方式合成了四个四速Ravigneaux型自动变速器的地图集。

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