Motor control device, control method, motor module, and electric power steering apparatus
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United States of America Patent
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Aug 1, 2023
Grant Date -
N/A
app pub date -
Dec 9, 2021
filing date -
Dec 11, 2020
priority date (Note) -
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Abstract
To improve steering feeling felt by a driver, a motor control device includes a processor and a memory which stores a program for controlling an operation of the processor. According to the program, the processor executes: switching from n-phase (n is an integer of three or more) energization control to n−1 phase energization control in response to a switching signal; acquiring a torque command value, an electrical angle of a motor, and an actual current value of the motor; generating a pre-current command value on the basis of the torque command value, the electrical angle of the motor, and the actual current value of the motor which are acquired; generating a current command value by applying dither control to the pre-current command value in a dead point range of an electrical angle range from 0 to 2π; and performing the n−1 phase energization control on the basis of the current command value.
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