The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 24, 2016
Filed:
May. 30, 2013
Claas Selbstfahrende Erntemaschinen Gmbh, Harsewinkel, DE;
Martin Kohlhase, Harsewinkel, DE;
Andreas Weilenberg, Herford, DE;
CLAAS Selbstfahrende Erntemaschinen GmbH, Harsewinkel, DE;
Abstract
A self-propelled harvesting machine includes a header, a hydraulic adjusting mechanism for adjusting the cutting height of the header, a height sensor for detecting the cutting height, a pressure sensor for detecting the hydraulic pressure at the adjusting mechanism and a control unit for actuating the adjusting mechanism on the basis of values measured by the height sensor and the pressure sensor. The control unit has a first control loop for generating a height-correction signal (h) on the basis of the actual cutting height (h) detected by the height sensor () and a setpoint cutting height (h) and, a second control loop for regulating pressure at the adjusting mechanism, the setpoint value of which follows changes in the height-correction signal.