Method and system for evaluating electrical connections between a motor controller and motor
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United States of America Patent
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Jan 7, 2014
Grant Date -
Aug 30, 2012
app pub date -
Jun 28, 2011
filing date -
Feb 24, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A pair of direct d-q-axis voltage commands is associated with a monotonically varying test sequence of test rotor angular positions to determine a correct rotational direction of a rotor of the motor in response to application of the pair of direct d-q-axis voltage commands to the motor. The rotor of the motor rotates (e.g., self spins in a diagnostic mode) in response to the applied direct d-q-axis voltage commands and applied monotonically varying test sequence of test rotor angular positions. The primary positioning module or data processor determines that conductor connections between the inverter (e.g., motor controller) and the motor are correct if the calculated shaft speed sign is positive with respect to an applied monotonically varying test sequence of rotor angular positions that monotonically increases.
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