Motor control method, motor control system, and electric power steering system
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United States of America Patent
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Jul 27, 2021
Grant Date -
Jun 13, 2019
app pub date -
Aug 1, 2017
filing date -
Aug 9, 2016
priority date (Note) -
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Abstract
A motor control method includes acquiring at least one measured torque angle and two estimated torque angles, obtaining all combinations of two torque angles that are combinable with respect to a set of the at least one measured torque angle and the two estimated torque angles and performing an arithmetic operation to determine an error for each combination, selecting a control mode of the motor from control modes including a sensor mode, a sensorless mode, and a shutdown mode, the selecting being performed by referring to a table representing a relationship between the control modes and reference patterns relating to the calculated error group, and controlling the motor in accordance with the selected control mode.
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