Apparatus and method for controlling actuator that controls opening and closing of intake valve
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United States of America Patent
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Jun 9, 2015
Grant Date -
Jun 13, 2013
app pub date -
Aug 27, 2012
filing date -
Dec 12, 2011
priority date (Note) -
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Abstract
Disclosed is an apparatus for controlling an actuator that controls opening and closing of an intake valve. The apparatus includes an input shaft connected to a motor and an output shaft rotatable in conjunction with the input shaft, a magnet unit including a first magnet and a second magnet provided on concentric circles, the first magnet provided such that different poles are alternately arranged at an angle of 90° and the second magnet provided such that different poles are alternately arranged at a predetermined angle, and a control unit, wherein a change in polarities of the first and second magnets are sensed.
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