Motor system having an electronically commutated electric machine
US8981703B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 2011 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Sep 10, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P6/153
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for operating an electric machine includes: a rotor position sensor to provide a rotor position indication as a function of a rotor position angular range which indicates the position of a rotor of the electric machine; a control unit designed to associate in each case a commutation angular range, which indicates a certain control state for the stator coils, with one or more of the rotor position indications, so that a change in the commutation angular range is triggered by a change in the rotor position indication, and to change an association scheme of the associations between the rotor position indications and the respective commutation ranges as a function of a predefined rotational direction indication which indicates the desired rotational direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.