Method for controlled braking of a door and device for applying said method
US7723936B2 · kind B2 · utility
8Cited by
8References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2007 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/45242
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a method for controlled braking of an electrically powered lifting action in the event of a failure, such that at least one of the nominal values for “rotational direction” and/or “operating speed” and/or “door position” and/or “motor capacity” and/or “motor current” is ascertained and compared with an actual value, and such that a motorized braking process or motorized stopping process is triggered by a departure of the actual value from the nominal value that lies outside a predetermined range. In addition the invention relates to a device for applying said method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.