Construction Machine Dump Control via Swing Joystick Merging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Operators of construction machines face increased fatigue and reduced efficiency during dumping operations due to the need for simultaneous and precise control of swing and boom-up movements, requiring high concentration and separate operation of joysticks.
Innovation Solution
A method for controlling dump driving that allows simultaneous operation of boom-up and swing through a swing joystick, utilizing a semi-auto dumping mode with a controller to determine swing direction and boom-up height, and automatically adjusting the boom-up and swing movements based on joystick input signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator separately operates the swing joystick and boom-up joystick while confirming the dumping position, then the dumping position and height can be controlled, but operator fatigue increases and concentration is required
Solution Approach 1:
The patent combines the swing and boom-up control functions into a single swing joystick operation. When the swing joystick is operated during dumping work, the system automatically performs both swing movement and boom-up movement simultaneously, eliminating the need for separate joystick operations and reducing operator fatigue while maintaining control reliability
2Productivity
If the operator simultaneously operates swing joystick and boom-up joystick to adjust swing angle and boom-up height, then the dumping position can be reached, but operator fatigue increases
Solution Approach 1:
The system merges two separate control operations (swing and boom-up) into a single joystick operation. The control unit receives signals from the swing joystick and automatically coordinates both swing and boom-up movements, allowing the operator to reach the dumping position with less fatigue while maintaining work efficiency
Solution Approach 2:
The system provides self-service by automatically coordinating the boom-up movement in response to swing joystick operation. The control unit autonomously manages the relationship between swing angle and boom-up height, eliminating the need for the operator to manually coordinate both movements and reducing physical and mental fatigue
3Measurement precision
If the dumping height does not match the loading container, then adjustment is required through boom-up joystick operation, but work time increases and work efficiency deteriorates
Solution Approach 1:
The system incorporates feedback mechanisms where the control unit continuously monitors the dumping height and automatically adjusts the boom-up movement based on the swing joystick operation. This feedback loop ensures the dumping height matches the loading container without requiring additional manual adjustments, reducing work time while maintaining precision
Solution Approach 2:
The system performs preliminary action by pre-coordinating the boom-up height adjustment as part of the initial swing operation. The control unit calculates and executes the required boom-up movement in advance during the swing operation, ensuring height matching is achieved before the dumping operation completes, thereby eliminating the need for subsequent adjustments and reducing work time
Data Source
AI summary
A method for controlling dump driving for a construction machine is disclosed, which can improve operability through simultaneous operation of boom-up and swing according to an operation of a swing joystick during a dumping work.