Low adhesion estimation

G. Charles, R. Goodall

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Citations (Scopus)


Low adhesion in wheel-rail contact causes huge problems for scheduling and safety of railway networks. Braking and guidance forces have the same force generation mechanism, via the creep forces at the wheel-rail contact. This paper demonstrates the application of a Kalman filter to estimate the adhesion condition on the rails. The key aspect of this approach is that estimation is carried out on-line, during normal running, i.e. before the brakes have been applied. This will give a full network-wide picture of low adhesion conditions. The results show that the different adhesion levels cause different responses in the railway vehicle, and that a Kalman filter can estimate wheelset forces well, to give an indication of the adhesion level. The work is successfully applied to a Simulink half vehicle model.

Original languageEnglish
Title of host publicationIET International Conference on Railway Condition Monitoring
Number of pages6
ISBN (Print)0863417329, 9780863417320
Publication statusPublished - 2006
Externally publishedYes
Event7th IET International Conference on Railway Condition Monitoring - Edgbaston Cricket Ground, Birmingham, United Kingdom
Duration: 29 Nov 200630 Nov 2006
Conference number: 7


Conference7th IET International Conference on Railway Condition Monitoring
Country/TerritoryUnited Kingdom
Internet address


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