Control device and phase error correction method
AssigneeHonda Motor Co., Ltd.
InventorAyano Yoshida
Life of this patent
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Abstract
A control device, which controls a rotating electric machine provided with a resolver that detects a rotation angle of a rotating shaft, includes: a current supply control unit that performs d-axis current supply control, which is control of supplying a d-axis current to the rotating electric machine in a state where the rotating shaft is stopped; a behavior detection unit that detects a behavior of the rotating shaft when the d-axis current supply control is performed; and a correction processing unit that performs, according to the behavior detected by the behavior detection unit, a correction process of correcting a phase error between an actual rotation angle of the rotating shaft and a rotation angle of the rotating shaft indicated by an output signal of the resolver.
Claims7
A control device that controls a rotating electric machine provided with a resolver configured to detect a rotation angle of a rotating shaft, the control device comprising:
- one or more processors that execute computer-executable instructions stored in a memory,
- wherein the one or more processors execute the computer-executable instructions to cause the control device to:
- perform d-axis current supply control that is control of supplying a d-axis current to the rotating electric machine in a state where the rotating shaft is stopped;
- detect a behavior of the rotating shaft when the d-axis current supply control is performed;
- and
- perform, according to the behavior that has been detected, a correction process of correcting a phase error between an actual rotation angle of the rotating shaft and a rotation angle of the rotating shaft indicated by an output signal of the resolver.
A phase error correction method for correcting a phase error between an actual rotation angle of a rotating shaft of a rotating electric machine and a rotation angle of the rotating shaft indicated by an output signal of a resolver, the phase error correction method comprising:
- causing one or more processors to perform d-axis current supply control that is control of supplying a d-axis current to the rotating electric machine in a state where the rotating shaft is stopped;
- causing the one or more processors to detect a behavior of the rotating shaft when the d-axis current supply control is performed;
- and
- causing the one or more processors to perform a correction process of correcting the phase error according to the behavior that has been detected in the detecting of the behavior of the rotating shaft.
Dependencies are inferred from the claim text.