Patent ID: 9083271
Filing Date: 2015-07-14
Classification: H02P

Abstract:
1. A motor control system for a vehicle, comprising: a current command generator configured to generate a current command based on a torque command, a motor speed, and a reference voltage; a current controller configured to generate a voltage command based on the current command; a coordinate transformer configured to transform the voltage command into a 3-phase voltage command by a coordinate transformation; a pulse width modulation (PWM) signal generator configured to generate a switch signal based on the 3-phase voltage command; a PWM inverter configured to generate a 3-phase driving current to drive a motor based on the switch signal; and a current control ripple compensator configured to apply a reverse phase harmonic wave to the current controller to reduce a harmonic wave caused by errors that are generated from the current controller, wherein the harmonic wave caused by errors that are generated from the current controller is a 6 wherein the current control ripple compensator is configured to use a response surface method(RSM) based on a predetermined test, and wherein independent variables for the response surface method (RSM) are torque command, a motor speed, and a reference voltage, and a dependent variable is a current ripple to be measured.