Patent · US Expired

Actuating-element positioning servo-drive device

US5635809A · kind A · utility

12Cited by

4References

4Claims

0Family size

Assignee

Mercedes-Benz Group AG · DE

Inventors

Martin Ganser · Weil der Stadt, DE
Volker Petri · Aidlingen, DE
Reinhold Mickeler · Altdorf, DE

Key dates

Filing date	Apr 7, 1995
Grant date	Jun 3, 1997
Priority date	—
Expiry date	Apr 7, 2015

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF24F2013/1433
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A servo-drive device is provided for an actuating of, for example, ventilation dampers in motor-vehicle air-conditioning installations element which can be stably positioned in a plurality of positions, d.c. motors with a gear mechanism are used for servo-drive devices of this type. A mechanical system which is moved at the same time and has potential energy varying along its path of movement is coupled to the servo drive such that it influences the current of the servo motor to permit the respective position of the actuating element to be identified by a control device on the basis of the evaluation of the motor current characteristically which depends on the force exerted by the mechanical system on the actuating element.

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