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System for remapping control signal for excavator arm movement to rotatory degree of freedom of tool

A remapping, degree of freedom technology, applied in the system field of tools, which can solve problems such as takeover

Active Publication Date: 2020-10-20
HEXAGON TECH CENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, it can be difficult, even for skilled operators, to seamlessly take over manual control of tool movement at the end of an auxiliary function or during an auxiliary function, such as making on-the-fly adjustments

Method used

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  • System for remapping control signal for excavator arm movement to rotatory degree of freedom of tool
  • System for remapping control signal for excavator arm movement to rotatory degree of freedom of tool
  • System for remapping control signal for excavator arm movement to rotatory degree of freedom of tool

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Experimental program
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Embodiment Construction

[0069] figure 1 The basic components of the excavator, namely the cab 1 , the boom 2 , the stick 3 and the tool 4 are shown exemplarily. By way of example, the excavator is implemented as a hydraulic excavator.

[0070] The (main) boom 2 is the arm element closest to the cab 1 . The (main) boom 2 is attached to the cab 1 via a boom joint, which may be of one of a variety of configurations. The boom 2 is here configured as a single boom, wherein the boom joints do not permit movement other than up and down rotation about the boom axis 5 . The cab 1 is arranged on a chassis 6 (here with tracks) and is rotatable relative to the chassis 6 about a cab joint defining a cab axis 7 by approximately 360 degrees.

[0071] The stick 3 is attached to the boom via a stick joint so that it can rotate about a stick axis 8 . A tool 4 is attached to the distal end of the stick 3 such that it can rotate at least about a tool joint defining a pitch axis 9 . In the figures, the excavator als...

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PUM

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Abstract

The invention relates to a system for controlling movement of multiple links of an excavator in order to move a tool arranged at the end of an excavator arm, wherein the system comprises a sensor datainterface configured to receive sensor data for determining relative orientations of the multiple links with respect to each other, and a surface setting unit configured to have access to design datadefining a reference surface. The system further has a remapping unit configured to remap a user command for moving two of the multiple links with respect to each other about a corresponding joint toan associated rotatory tool degree of freedom out of three independent rotatory degrees of freedom of a movement of the tool with respect to the reference surface. The system then coordinates outputsignals, such that as a function of the remapped user command the tool is rotated within the associated rotatory tool degree of freedom, without the need that an operator coordinates underlying jointmovements.

Description

technical field [0001] The present invention relates to a system for controlling the movement of a plurality of linkages of an excavator to move a tool disposed at the end of the arm of the excavator, wherein the operator of the excavator can directly adjust the position of the tool relative to a reference surface Especially orientation without coordinating underlying joint movement. Background technique [0002] An excavator is a construction machine that includes a boom, stick (also called a bucket), implements (eg, bucket), and a cab (also called a cab) on a rotating platform. The cab is typically rotatable about 360 degrees and rests on a movable chassis with tracks or wheels, with the boom and stick forming the movable excavator arm that carries the implement. These machines are used in a variety of ways, for example, for excavation, landscaping, material handling, brush stubble (e.g. with hydraulic saws and lawn mower attachments), forestry work, demolition (e.g. with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02F3/43
CPCE02F3/435E02F3/439E02F9/2012E02F3/3681E02F9/265G05B19/106G05B19/18E02F9/2037
Inventor L·吉亚尔加德S·科斯特洛A·林德斯科夫
Owner HEXAGON TECH CENT GMBH