Abstract
This paper presents the curving performance of railway vehicles with air suspensions. Air suspensions sometimes cause reduction of wheel load at transition curve. In previous study, the reduction of wheel load was restraint by using the new concept devices. The proposed active control devices have functions to make the link rod of air suspension systems extend or shorten. Active control performance was examined by the experiments using one-car-modeled test bench and simulations. In this study, modified of Leveling Valve performance was proposed to improve the control performance. The problem of wheel load reduction at the leading outside wheel was almost cleared.
