Actuating-element positioning servo-drive device

Details Actuating-element positioning servo-drive device Actuating-element positioning servo-drive device

1995-04-07

1997-06-03

Masih, Karen

Electricity: motive power systems

Positional servo systems

With particular 'error-detecting' means

318560, 475 92, G05F 110

Patent

active

056358091

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.

REFERENCES:
patent: 4684858 (1987-08-01), Ma et al.
patent: 4746772 (1988-05-01), Bovee et al.
patent: 4817912 (1989-04-01), McCabe
patent: 5236393 (1993-08-01), Milewski
Herbert Sax, Laststromerfassung in getakteten Motorbrucken, Industrieelektronik, me Bd. 5 (1991) Heft 6, 4 pages.

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