公开(公告)号：US12199546B2

公开(公告)日：2025-01-14

申请号：US18012401

申请日：2021-06-10

Applicant: Hitachi Astemo, Ltd.

Inventor： Junki Isobe ,  Kohei Myoen

IPC: H02P6/16 ,  H02P21/22 ,  H02P29/60

Abstract: A motor control device controls a motor, which is driven by three-phase alternating currents and to which a magnetic pole position sensor measuring a magnetic pole position of a rotor is attached, using a detection value of a rotation angle of the motor based on a measurement result of the magnetic pole position by the magnetic pole position sensor, compares a peak-current-time rotation angle representing the detection value of the rotation angle at a peak of a current value of a target phase and a reference rotation angle representing the rotation angle at a peak of a predetermined current waveform of the target phase using any one phase of the three-phase alternating currents during a three-phase short circuit of the motor as the target phase, and corrects the detection value of the rotation angle based on a result of the comparison.