Constant work tool angle control

Abstract

A method of controlling a work tool (110) with respect to a design surface gradient (300) identifies surface gradient and determines a desired angle for the work tool (110). Movement of the machine (100) is monitored and the distance between the design surface gradient (300) and the work tool (110) is determined. The angle of the work tool (110) is varied based on one or more of these parameters.

Description

technical field [0001] This patent disclosure relates generally to controlling a work tool attached to a machine, and more particularly to controlling the angle of the work tool in response to movement of the machine. Background technique [0002] Work machines such as hydraulic excavators typically use work tools to perform tasks. For example, hydraulic excavators may dig trenches in dirt using work tools such as buckets. Operators typically control machinery and work tools. In the case of an excavator, the operator controls the excavator's engine speed, forward motion, rotational motion, boom motion, and the pitch and angle of the bucket. Controlling all aspects of an excavator's motion requires a trained operator. [0003] As an example operation, an excavator may clear a ditch. The operator orients the excavator to travel parallel to the ditch. The excavator can be positioned at any point along the ditch. The ground along the ditch may be uneven. For example, at o...

AI Technical Summary

Problems solved by technology

While this system is capable of maintaining a roughly set angle for the work tool, it cannot change the angle of the work tool based on the task the machine is performing

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