SYSTEM AND METHOD FOR LOCOMOTIVE ADHESION CONTROL

摘要

A traction control system (156) for use in an electric traction motor propulsion system (22). The system includes at least two traction motors (38, 40) each having an axle- wheel set (50, 52) associated therewith, a speed sensor (62) for sensing a speed parameter representative of speed of the wheel mounted on the axle-wheel set (50, 52), a torque sensor for sensing a torque parameter representative of torque feedback exerted by the axle-wheel set, an estimator (96) coupled to the speed sensor (62) and the torque sensor and configured to estimate a tractive effort value or a creep value or a torsional vibration based upon the speed, the torque feedback, or a combination thereof. The system also includes a controller (36) for controlling the traction motors based upon the tractive effort value or the creep value.