The Forced Steering Tilt Truck for Diesel Limited Express

Abstract

Railway Technical Research Institute (RTRI) and Hokkaido Railway Company have jointly developed a steering pendulum bogie of a series 283 diesel power car limited express in an effort to shorten the travel time between Sapporo and Kushiro. The bogie is equipped with link type wheelset steering device connected with a bogie rotational angle, in order to reduce lateral forces between wheel and rail. The tilt roll center height was set at 1900 mm from the rail surface level to improve riding comfort and avoid wheel unloading. We have also developed a new air servo cylinder for tilting. Tilt mechanism took into consideration the severe winter weather. This paper describes the characteristics and mechanism of the bogie.