Brushless Motor and Control Method Therefor
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United States of America Patent
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Issued Date -
Oct 11, 2012
app pub date -
Mar 30, 2012
filing date -
Apr 5, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
When a fault of any one of phases is detected by a fault detector, each of the phases is checked for fault on the basis of fault detection information input to a controller, and the phases of normal phase currents which have been judged to be not faulty by a faulty phase discriminator are varied such that a current vector obtained by decomposing the normal phase currents into orthogonal X- and Y-axis components to derive resultant currents and then combining the resultant currents follows a nearly circular locus.
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