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:
Jul. 09, 2013
Filed:
Feb. 27, 2007
Applicant:
Norbert Krimbacher, Satteins, AT;
Inventor:
Norbert Krimbacher, Satteins, AT;
Assignee:
Liebherr-Werk Nenzing GmbH, Nenzing, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 19/00 (2006.01); F04B 49/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a method and device for controlling a hydraulic drive system, in particular in a crane or construction machine, a closed hydraulic circuit has a hydraulic pump and motor in which depending upon a desired value (n) of an output parameter of the hydraulic circuit, an actuating signal (I) is generated for adjusting the hydraulic pump and/or motor. The actuating signal (I) is limited and/or reduced by a superordinate control module () depending on matching of a specified power value (P; P) with a current power value (P; P) of the hydraulic pump and/or motor.