Mobile working machine with a control device, comprising a working arm and methods for controlling the operating point of a working arm of a mobile working machine

US8620534B2 · kind B2 · utility

Assignee

• Robert Bosch GmbH · DE

Inventors

• Soenke Jessen · Tamm, DE
• Steffen Klein · Asperg, DE

Key dates

• Filing date: Aug 4, 2010
• Grant date: Dec 31, 2013
• Expiry date: Sep 29, 2030

Classification

• Technology area (CPC E): Fixed Constructions
• CPC primary: E02F9/264
• WIPO field: Civil engineering
• WIPO sector: Other fields

Abstract

The disclosure relates to a mobile working machine with a control device, comprising a working arm, and methods for controlling the operating point of a working arm of a mobile working machine. According to the disclosure, the mobile working machine with the control device, comprising a working arm, has a working arm, a first end of which is hinged to a superstructure of the working machine. A tool is movably arranged on a second end of the working arm at an operating point. At least one first inclination sensor lies on the superstructure and at least one second inclination sensor lies on the working arm. In addition, at least one hydraulic cylinder is provided for changing the position of the operating point, said cylinder being hinged between the superstructure and the working arm. Furthermore, a control unit for processing signals from the at least two inclination sensors is provided to determine an operating point as a reference operating point and to ascertain a position change of the operating point by calculating a cylinder stroke on the basis of a volume flow into or out of the hydraulic cylinder.