Invention Grant
- Patent Title: Motor control device
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Application No.: US17824314Application Date: 2022-05-25
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Publication No.: US11695357B2Publication Date: 2023-07-04
- Inventor: Kazumasa Shimode
- Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Applicant Address: JP Toyota
- Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
- Current Assignee Address: JP Toyota
- Agency: Dinsmore & Shohl LLP
- Priority: JP 21110537 2021.07.02
- Main IPC: H02P21/00
- IPC: H02P21/00 ; H02P21/14 ; H02P27/06

Abstract:
A motor control device includes a motor that generates torque corresponding to a current for energizing multi-phase coils, a current sensor that detects a current value of the current for energizing the multi-phase coils, and a controller that obtains a current value of a current flowing through a predetermined coil by adding an origin learning value to a signal input from the current sensor and that controls a current for energizing the predetermined coil based on the current value. The motor control device obtains, each time the origin learning value is changed by a predetermined value, an amplitude of a predetermined order in a q-axis current of the motor based on the changed origin learning value and the signal input from the current sensor, and performs correction based on the origin learning value at the time when the amplitude switches from a decreasing tendency to an increasing tendency.
Public/Granted literature
- US20230006581A1 MOTOR CONTROL DEVICE Public/Granted day:2023-01-05
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