Harvesters – Motorized harvester – With condition-responsive operation
Reexamination Certificate
2011-04-12
2011-04-12
Torres, Alicia M (Department: 3671)
Harvesters
Motorized harvester
With condition-responsive operation
C056S01020G, C056S01020H
Reexamination Certificate
active
07921626
ABSTRACT:
Apparatus for controlling the speed of a combine harvester (10) includes one or more sensors (48) each generating one or more signals that correspond during use of the combine harvester to variables of a harvesting process. The apparatus further includes a processor and one or more control devices operatively connected in a feedback arrangement including two loops. In a first loop, a first signal (28) corresponding to the ground speed of the combine harvester (10) is fed back as an input to a first control device (42) that is capable of adjusting the ground speed relative to a set value. In a second loop, the first signal (28) is fed together with a second signal (34) indicative of the flow rate of crop through the combine harvester to a second control device (32) that generates as a third signal (31) the set value, the third signal being input to the first control device (42).
REFERENCES:
patent: 4430846 (1984-02-01), Presley et al.
patent: 4513562 (1985-04-01), Strubbe
patent: 4934985 (1990-06-01), Strubbe
patent: 5666793 (1997-09-01), Bottinger
patent: 6460008 (2002-10-01), Hardt
Coen Tom
Depreitere Dries M. J.
Maertens Koen O. G.
Missotten Bart M. A.
CNH America LLC
Harms Michael G.
Sheldrake Patrick M.
Torres Alicia M
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