Patent · US Expired

System for monitoring and controlling the opening and closing of electrically driven devices

US5872436A · kind A · utility

19Cited by

12References

9Claims

0Family size

Assignee

Leopold KOSTAL GmbH & Co. KG · DE

Inventors

Eduard Bergmann · Lüdenscheid, DE
Norbert Horst · Dortmund, DE
Volker Pretzlaff · Hagen, DE

Key dates

Filing date	Mar 10, 1997
Grant date	Feb 16, 1999
Priority date	—
Expiry date	Mar 10, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH02P7/29
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A system for monitoring and controlling the opening and closing of an electrically driven device, such as a window or a sliding roof of an automobile, contains various mechanical components and is equipped with an electrical servo motor which can be controlled by operating elements and a sensor device which are connected to an electronic control unit that processes signals under safety aspects and to which a power semiconductor is connected. To minimize the forces exercised on any trapped object, the rating of the servo motor is controlled by the power semiconductor so that the regulating speed of a servotransmission of the device can be adjusted during its adjustment range in dependence on specified positions of the device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.