Patent ID: 8276522
Filing Date: 2012-10-02
Classification: B61F

Abstract:
1. A railway bogie with a mounted vehicle body, said railway bogie comprising a frame, a plurality of wheelsets mounted to the frame, wherein each of the wheelsets has an axle with two spaced apart wheels, steering linkages pivotally linking the wheelsets, to provide cooperation between the wheelsets and maintain steering alignment, the plurality of wheelsets comprises a front wheelset and a rear wheelset, wherein the front and rear wheelsets can be pivoted about respective vertical axes by the steering linkage so that orientation of the front wheelset is substantially opposite to orientation of the rear wheelset with respect to a longitudinal axis of the frame when the bogie is traveling around a bend, a wheelset body linkage pivotally connecting the steering linkages with the vehicle body to position the vehicle body relative to the wheelsets, two alignment rams attached to opposing longitudinal sides of the frame and vehicle body and operatively cooperate to position the vehicle body with respect to the frame, one or more sensors including sensors for monitoring yaw angle and yaw velocity, a processor to process the sensor input to estimate track curvature and determine train speed and the yaw velocity of the vehicle body and then actuate the alignment rams to adjust position of the vehicle body relative to the frame in response to the track curvature and current frame positions to minimize wheel contact creepage and maximize bogie stability.