Adaptive Turning Control for Work Machines in Complex Boundaries
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Solution Overview
Problem
Self-propelled work machines face challenges in maintaining efficient work performance when operating in work regions with complex boundary shapes, leading to difficulties in turning and completing tasks effectively.
Innovation Solution
A control device is implemented that includes a turning unit, an evaluation unit, and a changing unit. The evaluation unit assesses the complexity of the work region's boundary shape, and the changing unit adjusts the turning mode of the work machine based on this evaluation, optimizing turning performance in complex regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the work machine uses a fixed turning mode to navigate boundaries, then the control system remains simple, but the work machine cannot appropriately turn in complicated boundary portions, leading to decreased work efficiency
Solution Approach 1:
The patent implements dynamic turning control by switching between multiple turning modes (first turning mode with larger turning radius, and second turning mode with smaller turning radius) based on real-time evaluation of boundary shape complexity. The control unit automatically adjusts the turning behavior when detecting complicated boundary portions, enabling the work machine to adapt its navigation strategy to match the geometric characteristics of the work region boundary, thereby resolving the contradiction between maintaining simple control and achieving efficient navigation in complex geometries.
Solution Approach 2:
The system changes the turning radius parameter dynamically based on boundary complexity evaluation. When the evaluation unit detects that the boundary shape is complicated, the control unit switches to a turning mode with a different turning radius parameter, allowing the work machine to navigate tight corners and complex geometries effectively. This parameter adaptation resolves the contradiction by enabling efficient navigation in complicated regions without requiring a completely complex control architecture.
2Adaptability or versatility
If the work machine maintains a single turning mode, then the device complexity remains low, but the machine cannot adapt to various work regions with different boundary complexities, reducing versatility
Solution Approach 1:
The patent creates a dynamic turning control system that automatically adapts to different work region geometries. The evaluation unit continuously assesses boundary shape complexity, and the control unit switches between multiple turning modes based on this evaluation. This dynamic adaptation enables the work machine to handle various work regions (simple rectangles, complicated irregular shapes, areas with narrow passages) using a unified control system, resolving the contradiction between versatility and device complexity.
Solution Approach 2:
The control system is designed with multi-functionality to handle diverse work region types. By incorporating multiple turning modes that can be selectively activated based on boundary complexity evaluation, the system achieves universal applicability across different work scenarios (open fields, narrow passages, complicated boundaries) without requiring separate specialized control systems for each case, thus resolving the contradiction between adaptability and complexity.
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
This solution enhances the work efficiency of self-propelled work machines by enabling them to navigate and complete tasks in complex work regions more effectively, reducing the likelihood of work failures and improving overall operational efficiency.
Implementation Method 1
the work machine detects an electromagnetic wave generated by the wire
Data Source
AI summary
A control device for executing travel control of a self-propelled work machine, comprising a turning unit that turns the work machine such that the work machine travels inside a boundary of a work region, an evaluation unit that evaluates complexity of a shape of the boundary in the work region, and a changing unit that changes a turning mode of the work machine when the work machine is turned based on an evaluation result by the evaluation unit.