Motor controller
US7459879B2 · kind B2 · utility
14Cited by
0References
14Claims
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Assignee
Inventors
Key dates
| Filing date | Mar 16, 2005 |
| Grant date | Dec 2, 2008 |
| Priority date | — |
| Expiry date | Jul 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/032
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A control apparatus for an electric motor, in which a current controller giving multiphase voltage commands to a drive circuit for an inverter includes a normal-mode current controller for use in a normal mode, an abnormal-mode current controller for use in an abnormal mode, and an abnormality decision device. In a case of an abnormality occurring to one phase of an electric motor or the inverter, the controller is altered, and the abnormal-mode multiphase voltage commands which are generated by the abnormal-mode current controller are set as the multiphase voltage commands for the inverter drive circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.