Motor control device, and motor control method
US9628017B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2012 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Nov 10, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/64
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In order to highly accurately estimate a temperature of a permanent magnet to be used for a rotor of a motor, provided is a motor control device for a vehicle including a motor as a drive power source, in which an estimation mode setting section sets, when a predetermined condition for estimating the temperature of the permanent magnet to be used for the rotor of the motor is established under a state in which the motor generates drive power to run the vehicle, a current flowing through the motor to 0, and a permanent magnet temperature estimation section estimates the temperature of the permanent magnet based on an induced voltage of the motor in a period during which the current flowing through the motor is 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.