Patent · US Active

Method and device for detecting an entrapment situation

US8704476B2 · kind B2 · utility

3Cited by
7References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 13, 2010
Grant dateApr 22, 2014
Priority date
Expiry dateNov 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.