Commutation system for torque ripple minimization
US6437526B1 · kind B1 · utility
4Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2000 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | Sep 8, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for reducing torque ripple in an electric motor, comprising an electric motor having a stator and a rotor, a first set of N Hall sensors, a second set of N Hall sensors, a controller, and wherein said N Hall sensors in each said set of Hall sensors is spaced 360/N electrical degrees apart and said first and second sets of Hall sensors are spaced T electrical degrees apart, and wherein said controller is adapted to provide increased current during an overlap period detected by said Hall sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.