Excavation Start Position Control for Adaptive Swing Cycle Efficiency
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Solution Overview
Problem
Existing excavation systems face challenges in maintaining efficiency as the order of operations becomes less appropriate over time, making it difficult to optimize excavation processes.
Innovation Solution
A control device and method for a work machine that determines the start position of each excavation operation based on excavation time and swing time, including loading and return swings, to optimize automatic excavation operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the excavation order is determined in advance, then the initial excavation efficiency is improved, but the efficiency deteriorates as operations progress
Solution Approach 1:
The patent implements dynamic recalculation of the excavation sequence based on real-time excavation progress and remaining terrain data. The control device updates the operation order adaptively as excavation proceeds, transforming the static predetermined sequence into a dynamic optimized path that maintains high efficiency throughout the entire excavation process
2Manufacturing precision
If the excavation sequence is optimized initially, then the start position accuracy is improved, but the sequence becomes inappropriate over time
Solution Approach 1:
The system continuously monitors excavation progress and uses this feedback to recalculate and update the optimal excavation sequence. By incorporating real-time data about completed and remaining excavation areas, the control device adjusts the operation plan to maintain start position accuracy and prevent time waste from becoming suboptimal
Solution Approach 2:
The control device performs preliminary calculation of the excavation sequence not just once, but repeatedly at different stages of excavation. Each recalculation prepares an optimized sequence in advance for the remaining work, ensuring that the system always has an up-to-date optimal path rather than relying on an outdated initial plan
Data Source
AI summary
A control device is a control device of a work machine including a swing body swinging around a swing center and work equipment attached to the swing body. The control device includes an excavation-start-position determination unit. The excavation-start-position determination unit determines a start position of an excavation operation for each single excavation operation on the basis of at least an excavation time required for the excavation operation and a swing time required for a loading swing and a return swing when the excavation operation, a dumping operation, and the loading swing and the return swing between the excavation operation and the dumping operation are automatically performed by the work equipment.