Active steaming approach for mitigating effects of rack disturbances on electric power steering systems

摘要

A system for actively damping a power steering system includes a damping activation module that generates an attenuation activation signal based on an engine rotational speed signal, a torsion bar torque signal, and a final engine command; a command calculation module that generates a calculated command based on the engine rotational speed signal and a vehicle speed signal; and a damping calculation module that generates a damping command based on the damping activation signal and the calculated command, wherein the damping command reduces a motor rotation speed of a motor of the power steering system to mitigate a rack disturbance.