Excavator Tilt Feedback Control for End Attachment Height
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Solution Overview
Problem
Existing excavator technologies fail to efficiently adjust the height of an end attachment during slewing when the excavator is tilted, leading to increased operational burden for the operator.
Innovation Solution
An excavator control system that includes a tilt sensor to detect the tilt of the excavator and adjusts the height of the end attachment during slewing, using a controller to maintain the attachment's height relative to a reference plane, thereby reducing operator burden.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustments are made by the operator to account for excavator tilt during slewing, then ground leveling accuracy can be maintained, but operational complexity and operator burden increase
Solution Approach 1:
The control system automatically adjusts the boom angle based on tilt sensor feedback without requiring manual operator intervention. The system monitors the excavator's tilt state and autonomously modifies the end attachment's height to maintain proper leveling, allowing the machine to serve itself rather than requiring continuous operator adjustment.
Solution Approach 2:
A tilt sensor detects the excavator's tilt angle and provides real-time feedback to the control unit. The control unit uses this feedback information to automatically adjust the boom angle, creating a closed-loop control system that maintains ground leveling accuracy dynamically during slewing operations.
2Productivity
If automatic height adjustment is implemented during slewing, then operational efficiency improves, but device complexity increases
Solution Approach 1:
The control system automatically adjusts the boom angle based on tilt sensor feedback without requiring manual operator intervention. The system monitors the excavator's tilt state and autonomously modifies the end attachment's height to maintain proper leveling, allowing the machine to serve itself rather than requiring continuous operator adjustment.
Solution Approach 2:
The control unit integrates multiple functions including tilt detection, boom angle control, and leveling coordination into a single multi-functional system. This consolidation reduces overall system complexity compared to having separate dedicated systems for each function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system automatically adjusts the end attachment's height during slewing, enhancing operational efficiency and reducing operator workload by maintaining the attachment's position relative to the ground, even when the excavator is tilted.
Implementation Method 1
a tilt sensor configured to detect a tilt of the excavator
Data Source
AI summary
An excavator includes a lower traveling body; an upper slewing body that is slewably mounted on the lower traveling body; a boom that is attached to the upper slewing body; an arm that is attached to an end of the boom; an end attachment that is attached to an end of the arm; a tilt sensor configured to detect a tilt of the excavator; and a control part configured to control a height of the end attachment during slewing of the upper 10 slewing body, in accordance with a detection result obtained by the tilt sensor.