Method of controlling a brushless DC motor
US11356042B2 · kind B2 · utility
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14Claims
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Assignee
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Key dates
| Filing date | Aug 31, 2018 |
| Grant date | Jun 7, 2022 |
| Priority date | — |
| Expiry date | Oct 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling the commutation of a brushless direct current motor includes providing sensors which provide a variable output dependent on rotational angle or the relative position of the stator and rotor of the motor. Output from the sensors is sampled at a time between a past commutation event and the next commutation event to be implemented. An angular position between the rotor and stator is determined at the time. The time of the next commutation event is determined based on the next commutation angle, motor speed, and the determined angular position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.