Method and device for monitoring the startup of an electric drive
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United States of America Patent
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May 7, 2013
Grant Date -
Nov 3, 2011
app pub date -
Dec 18, 2009
filing date -
Jan 9, 2009
priority date (Note) -
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Abstract
A method and a device for monitoring the startup of an electric drive, which has a polyphase machine, a pulse-controlled inverter and a control unit. The control unit is provided to compare rotational speed values that are successive in time to one another during the startup of the drive, and when recognizing a non-increase in the rotational speed of the rotor shaft, to detect a mixup of phase lines or pulse-controlled inverter lines.
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