Torque detector and electric power steering system including the torque detector
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United States of America Patent
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Sep 1, 2015
Grant Date -
Nov 13, 2014
app pub date -
Apr 23, 2014
filing date -
May 7, 2013
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Abstract
A torque detector includes a permanent magnet, a pair of magnetic yokes, and a magnetic sensor. The magnetic yokes include a first magnetic yoke and a second magnetic yoke. The first magnetic yoke has a first ring and a plurality of first teeth extending from the first ring in an axial direction. The second magnetic yoke has a second ring and a plurality of second teeth extending from the second ring in the axial direction. The first teeth extend in the axial direction beyond the second ring of the second magnetic yoke. The second teeth extend in the axial direction beyond the first ring of the first magnetic yoke.
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