METHOD OF DIAGNOSING ELECTRONIC WATER PUMP OF ENGINE
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United States of America Patent
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Issued Date -
Jun 9, 2016
app pub date -
Sep 21, 2015
filing date -
Dec 5, 2014
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Abstract
A method for diagnosing an electronic water pump of an engine in a vehicle includes determining whether a stall occurs while a sensorless 3-phase motor used for the electronic water pump of the engine is driven, based on a peak value of a torque of the motor. The method further includes determining whether the stall occurs while the motor is stopped, based on the torque of the motor.
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