INERTIA COMPENSATION WITH FREQUENCY DEPENDENT DAMPING

摘要

A control system for an electric power steering system is provided. The system includes a motor and a control module in communication with the motor. The control module provides a compensation command to the motor. The control modules includes a frequency dependent damping module for determining a frequency dependent damping (FDD) coefficient based on a base assist command and a vehicle speed. The control module includes a coefficient module for determining a plurality of filter coefficients. The filter coefficients are based on the FDD coefficient, the vehicle speed, and an inertia compensation coefficient. The control module includes a filter module for determining the compensation command based on the plurality of filter coefficients.