US 12,463,566 B2 · Electric machine system

Abstract

An electric machine system includes an electric machine, an electric power converter, and a control unit. The electric machine includes a stator that includes coils, and a rotator that includes a magnet and is rotatable with respect to the stator. The electric power converter inputs electric power with respect to the coils of the electric machine. The control unit controls the electric power converter. The control unit includes an output unit and a correction unit. The output unit outputs a control signal for operating the electric power converter to the electric power converter. The correction unit corrects a phase of the control signal that determines input timing of the electric power with respect to the coils of the electric machine. The correction unit corrects the phase so that the magnitude of the electric power approaches an extreme value.

Claims20

Dependent claims

An electric machine system, comprising:

an electric machine comprising a stator that comprises coils, and a rotator that comprises a magnet and is rotatable with respect to the stator;
an electric power converter that inputs and outputs electric power with respect to the coils of the electric machine;
and
at least one processor configured to:
correct a phase of a signal so that a magnitude of a correction reference approaches an extreme value, wherein the signal is for operating the electric power converter and the phase of the signal determines an input timing or an output timing of the electric power with respect to the coils of the electric machine, and
output the signal to the electric power converter.

3 more elements

Dependencies are inferred from the claim text.

Electric machine system

Life of this patent

Electric machine system

Life of this patent

Abstract

Claims20