Control system for alternating current electric machine e.g. interior permanent magnet machine used in hybrid vehicle, multiplies gain to adjusting current command signal based on torque and limited current command signals

摘要

A field weakened module (214) generates adjusting current command signal based on the voltage command signals generated from a current regulator module (216).A derivative module (206) in torque linearity module (204) multiplies derivative gain to the adjusting current command signal generated by field weakened module based on the torque and limited current command signals to generate raw adjusting current command signal. A limiter module (208) generates another adjusting current command signal by limiting raw adjusting current command signal. An independent claim is included for method for controlling electric machine.