Methods of reducing vibrations for electric motors
US11557996B1 · kind B1 · utility
8Cited by
59References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2022 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Jun 22, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60L2270/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of controlling an electric motor includes pulsing the electric motor and phase shifting the modulation frequency. Pulsing the electric motor at the modulation frequency propels a vehicle to increase efficiency of the electric motor. Phase shifting the modulation frequency includes phase shifting between 0 degrees and 180 degrees to reduce vibrations induced in the vehicle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.