Method and device for detection of condition of brushless motors and generators
US12028011B2 · kind B2 · utility
0Cited by
4References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 29, 2020 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Dec 23, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P2207/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and device for determining the position of a rotor in a brushless motor is provided. The method generally includes: injecting electrical signals into a stator of the brushless motor; measuring scattering parameters reflected back from the stator, wherein the scattering parameters are influenced by the near-field dynamics impaired by the motor; and comparing the measured scattering parameters to a predetermined data set of scattering parameters for known rotor positions to determine the position of the rotor. The method and device is also suitable for determining a condition of a motor or a generator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.