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:
Mar. 26, 2024
Filed:
Apr. 09, 2021
Danfoss Power Solutions Inc., Ames, IA (US);
Erik Westergaard, Nordborg, DK;
Henrik Hauge, Nordborg, DK;
DANFOSS POWER SOLUTIONS INC., Ames, IA (US);
Abstract
The invention relates to a method () of operating a hydraulic arrangement () including a mounting base (), a boom () that is pivotably arranged on the mounting base (), and a Z-kinematics () that is arranged on the boom (). The Z-kinematics () tilts a tool attachment device (), that is pivotably arranged on the boom (). The boom () is moved by a lifting hydraulic piston () that is connected to the boom () and to the mounting base (). The Z-kinematics () is moved by at least a tilting hydraulic piston () that is connected to a lever of the Z-kinematics () and to the mounting base (). On application of an input control command for changing the position of the lifting hydraulic piston (), a compensation command is automatically generated and applied to the tilting hydraulic piston (), to essentially maintain the attitude of the tool attachment device (). The compensation command is generated based on the input control command for the lifting hydraulic piston (), using a mathematical model of the hydraulic arrangement ().