Apparatus and method for detecting and preventing movement of a motor in a device of system
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United States of America Patent
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Nov 14, 2017
Issued Date -
N/A
app pub date -
Feb 3, 2016
filing date -
Feb 9, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A motor drive system configured to detect and prevent undesired movement of an item that is configured to be driven by the motor drive system. The motor drive system having: an electronic control unit operatively coupled to a rotor of the motor drive system, the electronic control unit being configured to detect undesired rotation of a shaft of the rotor, wherein the undesired rotation of the shaft is not caused by a force applied by the rotor; and wherein the electronic control unit of the motor drive system is configured to short windings of the motor drive system after a predetermined amount of undesired rotation of the shaft is detected by the electronic control unit such that further rotation of the rotor is prevented.
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