RELATIVE ROTATIONAL ANGULAR DISPLACEMENT DETECTION DEVICE, TORQUE DETECTION DEVICE, TORQUE CONTROL DEVICE, AND VEHICLE
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 20, 2014
app pub date -
Sep 11, 2013
filing date -
Sep 14, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A permanent magnet includes magnetic poles that are arranged so as to alternate in polarity in the circumferential direction of the axis of rotation. The magnet is attached to one of a pair of rotatable members. The rotatable members are relatively rotatable about an axis of rotation. A magnetic flux inducing ring, including an annular ring body and a plurality of protrusions protruding from the ring body, is attached to the other rotatable member. A plurality of magnetic sensors is arranged adjacent to the ring body. A first facing portion and a second facing portion, each for inducing a part of a magnetic flux of the ring body, are provided and do not rotate with the permanent magnet and the magnetic flux inducing ring.
First Claim
Other Claims data not available