Commutation control method and device for brushless direct current motor, and storage medium
US11689140B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 22, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Feb 15, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/182
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A commutation control method, a device for a brushless direct current motor, and a storage medium are described. The method includes performing detection on a position of a rotor in a brushless direct current motor. The detection is further configured to be triggered by commutation of the brushless direct current motor. The method includes determining, for the brushless direct current motor, a first drive scheme corresponding to the detected position of the rotor, the first drive scheme indicates a manner in which a three-phase full-bridge circuit of the brushless direct current motor operates; updating a pulse width modulation (PWM) drive signal, the updating is performed on the basis of the first drive scheme; and using the updated PWM drive signal to control the brushless direct current motor to perform commutation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.