Active steering of railway vehicles: A feedforward strategy

This paper presents an active steering strategies for a railway vehicle to improve performances on curves. By feeding forward a desired angle of attach and the radius of curves, a feedforward control law is proposed and verified. In order to assess its performance issue, parameter variations such as creep coefficients and nonlinearities of the wheel conicity are considered. The simulation results show a significant improvement. Although the feedforward strategy depends on the knowledge of the yaw stiffness of the system, no interference with the stability make it preferable.