Configuration design of ten-speed automatic transmissions with twelve-link three-DOF Lepelletier gear mechanism
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- 作者：Essam L. Esmail
- 关键词：Automatic transmission ; Clutching ; sequences ; Eleven ; speed ; Planetary gear train ; Gear ratios ; Lepelletier ; Nomographs ; Ten ; speed ; Speed ratios
- 刊名：Journal of Mechanical Science and Technology
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：30
- 期：1
- 页码：211-220
- 全文大小：1,032 KB
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1. College of Engineering, University of Qadisiyah, Al Diwaniyah, Iraq
Structural Mechanics
Control Engineering
Industrial and Production Engineering
文摘
Many Lepelletier-type automatic transmissions are in production. Some of Lepelletier related configurations are still far from reaching maximum possible sequential speed ratios. This work focuses on analyzing and developing twelve-link three-DOF Lepelletier-type automatic transmissions to attain maximum speed ratios. Following the general trend of increased shift stages and a wider range of speed ratios, new ten-speed automatic transmissions are enumerated from the twelve-link three-DOF Lepelletier gear mechanisms. Furthermore, a ten-speed automatic transmission is modified from an existing eight-speed Lepelletier-type automatic transmission. The results show that the twelve-link three-DOF Lepelletier gear mechanism could reach eleven forward speeds at most. Nomographs are shown to be practical in detecting possible configurations and their clutching sequences.