A method and system for compensating for wheel wear uses position and/or speed information from an independent positioning system to measure some distance over which the train has traveled. Wheel rotation information is also collected over the distance. The wheel rotation information and distance and/or...http://www.google.com.hk/patents/US20030225490?utm_source=gb-gplus-share專利 US20030225490 - Method and system for compensating for wheel wear on a train
