Method and apparatus for stall detection
US8040091B2 · kind B2 · utility
1Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2008 |
| Grant date | Oct 18, 2011 |
| Priority date | — |
| Expiry date | May 14, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P29/0241
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Stall detection apparatus for an electric motor controller has an input for receiving a drive error flag indicating if the controller is unable to achieve the required motor velocity and an input for receiving a signal in order to measure, directly or indirectly, the actual motor velocity. The actual motor velocity is determined in order to indicate whether the motor is stationary and, only if so, a stall signal is outputted in order to indicate that said motor has stalled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.