Harvesting machine

Details Harvesting machine Harvesting machine

2005-08-09

2005-08-09

Kovács, Árpád Fab (Department: 3671)

Crop threshing or separating

Means responsive to a sensed condition

Machine load

Reexamination Certificate

active

06926604

ABSTRACT:
A forage harvester includes feed rolls operable to convey crop to a crop cutter drum. The forage harvester is provided with a control arranged to produce a controller output signal based upon a sensed number of rotations of the crop cutter drum or the feed rolls. The controller output signal operates such that a difference between an actual relation between the feed roll and cutter drum speeds and a nominal relation is at least reduced. The control is operable to produce the controller output signal independent from a detection of the speed of the feed rolls or the chopper drum. The speed of the feed rolls or chopper drum is hence controlled without feedback, but with an open loop. Thus, a sensor is saved and control oscillations are avoided.

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patent: 5901535 (1999-05-01), Duckinghaus et al.
patent: 6052978 (2000-04-01), Kempf
patent: 6073428 (2000-06-01), Diekhans
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patent: 6318056 (2001-11-01), Rauch et al.
patent: 6446889 (2002-09-01), Moore
patent: 2001/0037638 (2001-11-01), Krone et al.
patent: 196 32 977 (1993-08-01), None
patent: WO 01 65919 (2001-09-01), None

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