Analysis of Ramp Estimation Algorithms in Automatic Transmission

被引：0
|
作者：
Tian Yuan-suo [1 ]
Ding Zhizhong [1 ]
Wang Qiong [1 ]
Sun Baoqun [2 ]
机构：
[1] Hefei Univ Technol, Sch Comp & Informat, Hefei, Peoples R China
[2] Inst Hefei Gongda Automot Technol, Hefei, Peoples R China
来源：
MANUFACTURING SCIENCE AND TECHNOLOGY, PTS 1-8 | 2012年 / 383-390卷
关键词：
automatic transmission; transmission control unit; road ramp estimation; busy shifting;
D O I：
10.4028/www.scientific.net/AMR.383-390.5268
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Automatic transmission may produce busy shifting on uphill and downhill. This article analyzes three algorithms about the estimation of road ramp: the first using a longitudinal acceleration, the second using estimated output torque, and the third using the difference between two accelerations. The first method is more accurate than the other two, but it is more expensive because an additional acceleration sensor is needed. The second is more complicated and in some driving conditions, it could not estimate the output torque. The third is based on simple theory and inexpensive since no additional sensor is needed. Some simulation results of avoiding unnecessary gear-shifting are also presented in the paper.
引用
收藏
页码：5268 / +
页数：2
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