Zhao, Yunshi, Liang, Bo and Iwnicki, Simon (2014) Friction coefficient estimation using an unscented Kalman filter. Vehicle System Dynamics, 52 (S1). pp. 220-234. ISSN 0042-3114

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

IwnickiFriction.pdf - Accepted Version

Download (978kB) | Preview
IwnickiFriction.docx - Accepted Version
Restricted to Repository staff only

Download (1MB)


Downloads per month over past year

Add to AnyAdd to TwitterAdd to FacebookAdd to LinkedinAdd to PinterestAdd to Email