OREGON STATE UNIVERSITY

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Motor Torque Ripple Compensation

TitleMotor Torque Ripple Compensation
Publication TypePatent
Year of Publication2013
AuthorsXiang, J., J. Zhang, S. Kozarekar, and M. Degner
Application NumberUS 20130119900
Date Published2013
Patent NumberUS 20130119900
Abstract

A system for controlling a vehicle, the vehicle including an electric machine, includes a controller. The controller is configured to control the electric machine with an electric machine current including a plurality of current harmonic components. At least two of the current harmonic components have different magnitudes. When a torque ripple of the electric machine is an electrical k-th order harmonic, the plurality of current harmonic components may include an electrical k-1 order harmonic component having a first magnitude and an electrical k+1 order harmonic component having a second magnitude different than the first magnitude.