Friction coefficient estimation using an unscented Kalman filter

被引：22
|
作者：
Zhao, Yunshi [1 ]
Liang, Bo [1 ]
Iwnicki, Simon [1 ]
机构：
[1] Univ Huddersfield, Inst Railway Res, Huddersfield HD1 3DH, W Yorkshire, England
来源：
VEHICLE SYSTEM DYNAMICS | 2014年 / 52卷
关键词：
friction estimation; Kalman filter; traction motor;
D O I：
10.1080/00423114.2014.891757
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The friction coefficient between a railway wheel and rail surface is a crucial factor in maintaining high acceleration and braking performance of railway vehicles; therefore, monitoring this friction coefficient is important. Due to the difficulty in directly measuring the friction coefficient, the creep force or creepage, indirect methods using state observers are used more frequently. This paper presents an approach using an unscented kalman filter to estimate the creep force and creepage and the friction coefficient from traction motor behaviours. A scaled roller rig is designed and a series of experiments is carried out to evaluate the estimator performance.
引用
收藏
页码：220 / 234
页数：15
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