SYSTEM AND METHOD FOR CONTROLLING AN AC TRACTION MOTOR WITHOUT SENSING MOTOR ROTATION SPEED

摘要

A processor system (100) and method are provided for providing motor excitation frequency control in a vehicle propelled by AC electric traction motors (M1-M4). The processor system and method allow for computing an excitation frequency signal based on a sum of i) a signal indicative of a weighted average of an estimated rotor speed signal and a measured vehicle speed signal and ii) a compensated slip command signal.