Method and device for detecting an entrapment situation
US8704476B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2010 |
| Grant date | Apr 22, 2014 |
| Priority date | — |
| Expiry date | Nov 7, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
To detect an entrapment situation when a driven component is adjusted using a mechanical adjustment system which has an electric motor (2), a value (Fakt) relating to the force acting upon the driven component is compared with a threshold value (FTh) relating to a reference value (FRef). The reference value (FRef), and thus the threshold value (FTh), are continuously matched, for the purpose of force tracking, with the force value which changes during the movement of adjustment depending on the mechanical system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.