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Method for putting down a tool of a construction machine

Pending Publication Date: 2022-06-23
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a method for automatically depositing a tool on a construction machine using sensors and an algorithm. The method allows for easier and safer operation, especially for inexperienced operators. The position and orientation of the tool can be controlled more accurately than other methods, and the tool can be safely deposited without causing damage. Overall, the method simplifies the process of using the tool and improves efficiency on construction projects.

Problems solved by technology

This maneuver is often difficult, especially for inexperienced operators, in particular if the view of the tool and / or of the ground is obstructed.

Method used

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  • Method for putting down a tool of a construction machine

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Embodiment Construction

[0023]FIG. 1 shows a schematic representation of a construction machine 1 in the form of a wheel loader, having a tool 2 realized as a shovel. The tool 2 is connected to the construction machine 1 via a working arm 3, there being a respective joint 4 arranged between the construction machine 1 and the working arm 3, and between the tool 2 and the working arm 3, which movably connects the respective components. In further exemplary embodiments that are not shown, the working arm may also be of a multi-link design, in which case there is also a joint arranged between each of the individual links. The construction machine 1, the working arm 3 and the tool 2 form a kinematic chain. There is a respective inertial sensor 5, 5′ of an inertial measurement unit arranged on each link of the kinematic chain, i.e. on the construction machine 1, the working arm 3 and the tool 2. The inertial sensor 5′ arranged on the construction machine 1 has a special significance in this case (see below) and ...

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Abstract

A method is for putting down a tool of a construction machine. A position and an orientation of the tool relative to the construction machine or to a direction of Earth's gravity is determined by one or more of the following sensors including: an inertial measuring unit, an angle sensor, a linear sensor, and / or by an algorithm for determining a kinematic chain of the construction machine. Moreover, an orientation of at least one part of the construction machine, which part touches the ground, and which orientation characterizes an orientation of the construction machine relative to the ground, is determined relative to Earth's gravity. Based on this determination, movement of the tool is controlled, in order to bring a lower face of the tool to the same level and in the same orientation as the at least one part touching the ground, for putting down the tool.

Description

[0001]The present invention relates to a method for depositing a tool of a construction machine on the ground with the aid of tool center point estimation. Further, the invention relates to a computer program, which performs each step of the method when executed on a computing device, and to a machine-readable storage medium that stores the computer program. Finally, the invention relates to an electronic control device that is configured to execute the method according to the invention.PRIOR ART[0002]One of the basic maneuvers of many construction machines such as, for example, excavators, wheel loaders, bulldozers and the like, is to deposit the tool of the construction machine on the ground. The tool in this case must be placed on the ground safely, i.e. without tipping or slipping (off), and with as little impact force as possible. This maneuver is often difficult, especially for inexperienced operators, in particular if the view of the tool and / or of the ground is obstructed.[0...

Claims

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Application Information

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IPC IPC(8): E02F9/26E02F9/20
CPCE02F9/265E02F9/2041E02F9/264
Inventor KRAUSE, CHRISTIANLIU, KAIWAGNER, HORSTMANGA, BILGE
Owner ROBERT BOSCH GMBH
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