Work Machine Controller Mode Transition via Vehicle Approach Detection
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Solution Overview
Problem
Existing systems for controlling work machines, such as hydraulic excavators, lack efficient coordination with conveyance vehicles for automatic loading operations, leading to suboptimal work efficiency.
Innovation Solution
A control system for work machines that includes a controller and detection device, allowing automatic transition between modes such as loading, digging, and standby based on the approach of conveyance vehicles, ensuring synchronized operation between the work machine and conveyance vehicle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automatic control mode is used for loading work, then work efficiency is improved, but coordination between work machine and conveyance vehicle becomes more difficult
Solution Approach 1:
The detection device continuously monitors the conveyance vehicle's position and provides feedback to the controller. When the conveyance vehicle approaches the loading position, the controller receives this feedback and automatically transitions from another mode to loading mode, enabling coordinated automatic operation without increasing operational complexity
Solution Approach 2:
The system performs preliminary detection of the conveyance vehicle's approach before initiating loading operations. By detecting the approach in advance and pre-transitioning to loading mode, the system ensures smooth coordination between the work machine and conveyance vehicle, improving work efficiency while maintaining simple control logic
2Productivity
If mode transition is triggered by conveyance vehicle approach, then loading work efficiency is improved, but response time requirement increases
Solution Approach 1:
The detection device detects the conveyance vehicle's approach in advance before the vehicle reaches the loading position. This preliminary detection allows the controller to transition to loading mode early, ensuring the work machine is ready to receive materials immediately when the conveyance vehicle arrives, thus meeting tight response time requirements while improving loading efficiency
Data Source
AI summary
A system controls a work machine that loads materials onto a conveyance vehicle. The system includes a controller and a detection device. The controller controls the work machine in an automatic control mode in which work is performed automatically. The detection device detects an approach of the conveyance vehicle toward the work machine. The automatic control mode includes a loading mode in which the work machine is caused to move to perform loading work for loading onto the conveyance vehicle, and an other mode other than the loading mode. The other mode includes at least one of a mode for gathering fallen materials and a digging mode for further increasing the materials by digging. The controller causes the automatic control mode to transition from the other mode to the loading mode when the approach of the conveyance vehicle is detected.