An adaptive wheel slip-slide diagnostic system for rolling stock electric vehicles

Abstract

Controlling the effect of slip-slide by adjusting the motor torque in both powering and braking modes respectively is critical for improving the performance and stability of rail propulsion systems on low friction surfaces. An adaptive wheel slip-slide detection and correction system has been designedfor a railway electric vehicle. The system controller demonstrates a simple design with a single parameter detection scheme with anti-jerk control and operates on the fundamentals of adhesion characteristics. The proposed control system has been employed and tested in a MATLAB-SIMULINK environment on a vehicle body driven by an asynchronous induction motor. The controller effectively reduces the applied reference torque to the motor control for auto correction following the detection of slipslide. The provided analysis results show that the sliplslide controller can give better performance and increased efficiency.