Active disturbance rejection for electrical power steering system
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United States of America Patent
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Sep 26, 2017
Grant Date -
Nov 10, 2016
app pub date -
Jan 14, 2015
filing date -
Jan 14, 2014
priority date (Note) -
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Abstract
A method of controlling disturbances associated with electric power steering (EPS) systems maintains an original assist torque to feedback signal in the EPS, such as a column torque, and further minimizes the impact from the disturbance source to the feedback signal so that the disturbance is rejected while the original steering feel is maintained. The method further considers interaction of the rejection feature with other functions of the EPS. In one embodiment, relationships for isolating the disturbance are achieved by utilizing a combined feedback and feed-forward compensator.
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