Distinguishing Between Random and Deterministic Track Inputs for Active Railway Suspensions

Hong Li, Roger Goodall

Research output: Contribution to journalArticle

1 Citation (Scopus)


This paper presents and compares different control strategies for applying absolute or "skyhook" damping in active suspension systems for railway vehicles. It first examines a number of linear approaches for filtering the absolute velocity signal in order to optimise the trade-off between the random and deterministic track input requirement, and then what can be achieved using non-linear Kalman-Filter methods is explored. Studies in this paper show that an improvement of nearly 20% in ride quality can be achieved with a linear complementary filter control and over 50% by using non-linear Kalman filter methods.

Original languageEnglish
Pages (from-to)772-777
Number of pages6
JournalVehicle System Dynamics
Issue numberSUPPL. 1
Publication statusPublished - 1998
Externally publishedYes


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