Method and apparatus for controlling an electric motor
US11370307B2 · kind B2 · utility
0Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2018 |
| Grant date | Jun 28, 2022 |
| Priority date | — |
| Expiry date | Dec 29, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2240/429
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for controlling an electric motor is described herein. The method includes setting a current limit, a speed limit and a torque limit. The method also includes sensing a DC link current, comparing the sensed DC link current with the current limit and adjusting the torque limit based on the comparison with the current limit to provide an adjusted torque limit. The method also includes sensing the speed of the electric motor, comparing the speed with the speed limit and further adjusting the adjusted torque limit based on the comparison with the speed limit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.