Method for determining a change in direction of rotation of a motor
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United States of America Patent
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-
Oct 16, 2007
Grant Date -
Jul 20, 2006
app pub date -
Jan 5, 2006
filing date -
Jan 14, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for determining a change in direction of rotation of a motor includes the steps of establishing steady state operating parameters of the motor, triggering a command interrupting the rotation of the motor, estimating the speed of the motor after triggering the command and determining the instant from which the speed of the motor is below zero. This instant corresponds to the change in direction of rotation of the motor. The instant from which the motor changes direction of rotation can be determined accurately.
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