Motor control device, electric power steering device, and vehicle
US9694845B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2015 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Mar 19, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2213/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control device includes a motor, a control device, and a motor drive circuit. The motor includes a motor rotor, a motor stator, and a plurality of coil groups divided into a first coil group and a second coil group of at least two systems for each of three phases, and configured to excite a stator core by three-phase alternating currents. In the motor drive circuit, a first motor drive circuit supplies a three-phase AC first motor drive current to the first coil group based on a command value, and a second motor drive circuit supplies a three-phase AC second motor drive current having a phase difference from a phase of the first motor drive current, to the second coil group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.