A Note on Wheel Slide Protection System through Simulation with Adhesion

Abstract

In railways, brake control is the important factor on safety, punctuality and etc. However, the slip is likely to occur during brake control since the wheels and rails are made of metal. The slip causes extension of the brake distance and damage to the wheels. The condition of the slip is greatly due to various factors such as the load, the state of the contact surface between the wheels and the rails, so the slip becomes a high uncertainty matter. Actual train uses the cooperation control of electric brake and air brake for wheel-slide-protection (WSP), but it can be more efficient to divide braking force because each of them performs independent. It is known that fuzzy inference shows high effectiveness for the object with high uncertainty. In this paper, we will compared the cooperation control with WSP using only air brake through numerical simulation, and evaluate of the cooperation control of electric brake and air brake.