Method and circuit arrangement for the electrical control and/or regulation of the movement of an electrically driven unit
US8022653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2005 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | Apr 22, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S388/93
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a circuit arrangement for electrically controlling and/or regulating the movement of an electrically driven unit (2), especially a window lifter or sliding roof of a motor vehicle, and to a method for operating said circuit arrangement. According to the invention, a jamming protection System is characterized in that a correlation variable (K) for the adjusting force of the unit (2) is measured and the adjusting movement is stopped or reversed in order to prevent jamming if the correlation variable (K) for the adjusting force exceeds a threshold value that corresponding to a predetermined jamming force. A filter (140) is used for temporally filtering the correlation variable (K) for the adjusting force of the unit. The invention is characterized in that the filter parameters (142, 143), especially the cutoff frequency (fg) and/or the order of the filter (140), can be controlled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.