Friction coefficient estimation using an unscented Kalman filter

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.

• Record URL:
  • https://doi.org/10.1080/00423114.2014.891757
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00423114
• Supplemental Notes:
  • Abstract reprinted with permission of Taylor & Francis.
• Authors:
  • Zhao, Yunshi
  • Liang, Bo
  • Iwnicki, Simon
• Conference:
  • 23rd Symposium of the International Association of Vehicle System Dynamics
  • Location: Qingdao , China
  • Date: 2013-8-19 to 2013-8-23
• Publication Date: 2014-5

Language

• English

Media Info

• Media Type: Web
• Features: Figures; References; Tables;
• Pagination: pp 220-234
• Serial:
  • Vehicle System Dynamics
  • Volume: 52
  • Issue Number: sup1
  • Publisher: Taylor & Francis
  • ISSN: 0042-3114
  • EISSN: 1744-5159
  • Serial URL: https://www.tandfonline.com/toc/nvsd20/current

Subject/Index Terms

• TRT Terms: Coefficient of friction; Creep; Kalman filtering; Monitoring; Railroad rails; Railroad wheelsets; Rolling contact
• Subject Areas: Railroads; Vehicles and Equipment; I95: Vehicle Inspection;

Filing Info

• Accession Number: 01527916
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 9 2014 1:22PM