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Patent

Handwheel-operated device

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TLDR
In this article, a handwheel-operated device consisting of a fixed body, a hand wheel and a moveable body was presented. But the handwheel was not rotated relative to the fixed body and the body was not moved relative to it.
Abstract
A handwheel-operated device comprising a fixed body, a handwheel and a moveable body, the handwheel being rotatable relative to the fixed body and the moveable body moveable relative to the fixed body, and the device further comprising a first motor operable to actuate the moveable body, first sensor means responsive to the rotation of the handwheel and first control means operable in conjunction with the first sensor means to cause the first motor to rotate upon an angular displacement and/or angular velocity of the handwheel.

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References
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Patent

Steering angle determaination method and apparatus

TL;DR: In this paper, a steering angle determination method comprising the steps of first filtering the handwheel angle signal to provide a first filter output, defining a comparison window around the first filter, comparing the hand wheel angle signals to the comparison window, and determining a steer angle signal as the difference between the hand-wheel angle signals and the second filter output was proposed.
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