Electrical power assisted steering system
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United States of America Patent
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Sep 20, 2022
Grant Date -
Mar 27, 2014
app pub date -
Oct 13, 2011
filing date -
Oct 22, 2010
priority date (Note) -
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Abstract
An electric power assisted steering assembly comprises a steering mechanism which operatively connects a steering wheel to the roadwheels of a vehicle, a sensor adapted to produce a first output signal indicative of the torque carried by a portion of the steering mechanism and to produce a second output signal indicative, an electric motor, a signal processing unit having a lead-lag filter to produce an overall torque demand signal, and a motor drive stage adapted to provide a drive current to the motor responsive to the torque demand signal.
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