Patent ID: 11901847
Assignee: HITACHI ASTEMO, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 11:
12. The motor control method according to claim 7,
wherein in a case in which the controller is configured to be able to execute overmodulation control for the power converter on the basis of the voltage command values obtained through the arithmetic operation when the voltage command values fall within an overmodulation control region, the controller
causes absolute values of the voltage upper limit values and the voltage lower limit values to increase by a predetermined value toward a second limit value that is an upper limit value of the overmodulation control region with a first limit value which is smaller than a lower limit value of the overmodulation control region defined as an initial value every time the voltage command values obtained through the arithmetic operation exceed the voltage upper limit values or every time the voltage command values obtained through the arithmetic operation are below the voltage lower limit values, and
controls the power converter on the basis of the voltage upper limit values when the voltage command values obtained through the arithmetic operation exceed the voltage upper limit values and controls the power converter on the basis of the voltage lower limit values when the voltage command values obtained through the arithmetic operation are below the voltage lower limit values.