Development of Active Bogie Steering System to Improve Curving Performance

Abstract

This paper presents an active steering system designed to ensure both the curving performance and running stability of a vehicle. Electro-hydraulic actuators installed in place of anti-yaw dampers generate a yaw moment between the carbody and bogie. The system detects curves with gyroscopes mounted on the vehicle. This configuration enables the reduction of wheel/rail lateral force without requiring complicated mechanical links in the bogies. The actuators also work as anti-yaw dampers during high-speed running to ensure running stability.