基于杠杆法莱佩莱捷式6速自动变速器分析  

Study of 6-speed Lepelletier Automatic Transmission Based on Lever Method

作　　者：张国芬 刘召杰 冯渊[1] 钱锋杰 杨磊 

机构地区：[1]无锡职业技术学院汽车与交通学院

出　　处：《机械设计与研究》2018年第1期94-98,共5页Machine Design And Research

基　　金：博士启动基金资助项目(30593117034)

摘　　要：目前在中高档轿车中占绝对优势的莱佩莱捷式6速自动变速器是由拉维娜式前面增加一个单排单级行星齿轮机构组成的。通过分析两种方案的莱佩莱捷式6速自动变速器结构，提出采用杠杆法建立速度矢量图进行传动比计算的方法。并对三种6速自动变速器的传动比、尺寸和工艺参数、工作和换挡元件数等方面进行比较，结论显示采用莱佩莱捷式方案二的自动变速器和采用“双级＋辛普森式”自动变速器的设计效果殊途同归；采用菜佩莱捷式方案一的自动变速器具有传动比幅度最大、速比阶跃变化波动最小、工作元件和换挡元件较少的优点，是三种自动变速器中最好的。Lepelletier automatic transimission consists of one Ravigneaux plus one single- row single- stage planetary gear mechanisms, it has absolute predominance in middle class and luxury cars at present. Based on the structure analysis of two types of 6-speed Lepelletier automatic transmission, the transmission ratio computation method is proposed by creating velocity vector chart using lever method. Three types of 6-speed automatic transmissions are compared in transmission ratio, dimension and process parameters, number of working and gear shifting components. Results show that using Lepelletier type 2 and two-stage plus Simpson 6-speed automatic transimission can get similar design results but in different ways. Lepelletier type 1 is the best in general because of its widest transmission ratio range, smallest speed ratio step, fewer working and gear shifting components.

关 键 词：杠杆法 莱佩莱捷 自动变速器 拉维娜式行星齿轮机构 

分 类 号：U463.212[机械工程—车辆工程]