DESIGN OF ACTIVE STEERING FUZZY CONTROLLER FOR RAILWAY VEHICLES

초록

During curve negotiation, the wheelsets of conventional vehicles generally misalign radically with the track increasing wheel/rail contact forces and resulting in increased wheel and rail wear, outbreak of squeal noise, fuel consumption, and risk of derailment. To alleviate these problems, modified suspension system designs, application for alternate wheel profiles, active and semi-active steering techniques have been proposed. Active steering system has proven its ability to bridge the gap between stability and curve friendliness. In this paper, we suggest a design procedure of an active steering controller based on fuzzy logic. Simulation results have been shown that the proposed fuzzy controller robustly yields uniform performance with adequate response over the wheel conicity variation range.