Control Strategy of the Brake Dynamics for Railway Vehicles Equipped with Anti-Slip-Device

Zobory, István and Békefi, Elemér (2006) Control Strategy of the Brake Dynamics for Railway Vehicles Equipped with Anti-Slip-Device. In: Proceedings of the 9th Mini Conference on Vehicle System Dynamics, Identification and Anomalies. BME Vasúti Járművek Tanszék, Budapest, pp. 227-236. ISBN 963 420 875 4

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Abstract

From the point of view of railway vehicle braking processes it is an important requirement to maintain the roll-ing-motion-state of the wheels, i.e. the macro-sliding-free rolling contact between the vehicle wheels and the rail-head, since in the course of rolling in the presence of creep-dependent contact forces, the braking force transmittable on the vehicle through the rail/wheel contact patch is considerably greater, than the braking force transmittable on the vehicle in the case of wheel blocking and on the railhead continuously sliding non-rotating wheels. In this study some control strategies will be introduced that have been elaborated for developing anti-slip-device systems of railway vehicles, and that meet the requirement of treating the always present uncertain-ties in the force transfer conditions through the wheel/rail rolling contact by a stochastic model. With such mod-els it is possible to develop anti-slip-devices having advantageous braking effectiveness in the operation also in case of uncertain tribological characteristics along the track.

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