Motor control device
US6984955B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2005 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Jan 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P23/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a motor control device controlling a motor by a state feedback control, high control accuracy is maintained regardless of fluctuations in a motor load so as to improve control performance of the state feedback control. A control signal (manipulation amount) outputted from a feedback calculator for controlling the motor is compared to a manipulation threshold set to a manipulation threshold setting register so as to determine the magnitude of a load amount of the motor. The feedback calculator includes an observer and performs the state feedback control of the motor. When the load amount is in normal level, a normal load observer matrix set in an observer table is selected to configure a normal load observer. When the load amount is increased, a high load observer matrix is selected to configure a high load observer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.