Motor control device, and method for correcting torque constant in such motor control device
US10270377B2 · kind B2 · utility
1Cited by
2References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 26, 2016 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jan 26, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2205/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor control device at least includes a speed control part for controlling a motor rotation speed. The motor control device includes a torque correction means for suppressing variation in torque constant due to individual differences of motors. In addition, the motor control device corrects the torque constant by using a correction torque coefficient calculated based on an unloaded speed when a fixed voltage is applied. Alternatively, the torque constant is corrected using the correction torque coefficient calculated based on the motor applied voltage when the motor speed is fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.