Active-active redundant motor gear system
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United States of America Patent
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Sep 1, 2015
Grant Date -
Jan 15, 2015
app pub date -
Jul 12, 2013
filing date -
Jul 12, 2013
priority date (Note) -
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Abstract
A fault tolerant virtual elliptical electric motor has at least four coil elements constrained in a stator case. A drive plate is supported by a fulcrum for nutating motion and has at least four core segments each associated with a respective one of the at least four coil elements for attraction upon activation. A control processor provides independent current control to each of the at least four coil elements for activation responsive to a received position command and a received wobble angle input, inducing the at least four coil elements to operate in a pure torque sum configuration upon the drive plate.
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