Combine Harvester Autonomous Travel Mode Resumption Control
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Solution Overview
Problem
Existing autonomous travel systems for work vehicles require operators to perform unnecessary operations to resume autonomous travel after cancellation, degrading operability, especially when the operator leaves the vehicle or positioning accuracy is lost.
Innovation Solution
An autonomous travel system that maintains the autonomous travel mode when certain conditions are met, allowing operators to resume travel without manual intervention, such as maintaining the mode when the vehicle is stopped or positioning accuracy is low.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the autonomous travel mode is canceled when the operator leaves the vehicle or positioning accuracy is lost, then the safety and reliability of the system is improved, but the operability and user convenience deteriorates as manual intervention is required to resume travel
Solution Approach 1:
The system automatically detects when positioning accuracy is restored or when the vehicle reaches a safe state, and autonomously resumes travel mode without requiring manual operator intervention. This self-service mechanism resolves the contradiction by maintaining reliability through automatic safety checks while improving operability by eliminating unnecessary manual operations.
Solution Approach 2:
The system continuously monitors positioning accuracy and vehicle state, providing feedback to determine when conditions are suitable for resuming autonomous travel. This feedback loop ensures reliability by verifying safety conditions while improving ease of operation by automatically transitioning back to autonomous mode when appropriate.
2Reliability
If the system requires predetermined operations to resume autonomous travel, then the control and safety of the system is improved, but the productivity and efficiency deteriorates due to additional manual steps
Solution Approach 1:
The system performs preliminary safety checks and condition verification automatically before resuming autonomous travel, rather than requiring manual operator actions. This preliminary automated action maintains control safety while eliminating time-consuming manual steps, thereby improving travel efficiency and productivity.
Solution Approach 2:
The system independently manages the resumption process by automatically detecting when safety conditions are met and transitioning back to autonomous travel mode. This self-service approach maintains safety controls while eliminating manual intervention steps that reduce productivity.
3Ease of operation
If the autonomous travel mode is maintained when the vehicle is stopped or positioning accuracy is low, then the operability and user convenience is improved, but the measurement precision and system reliability may be compromised
Solution Approach 1:
The system dynamically adjusts the autonomous travel mode maintenance based on real-time conditions. When the vehicle is stopped or positioning accuracy is low, the system maintains the mode designation but prevents actual travel execution until conditions improve. This dynamic approach improves user convenience by maintaining mode state while preserving measurement precision requirements for actual movement.
Solution Approach 2:
The system performs preliminary verification of positioning accuracy and vehicle state before allowing autonomous travel to resume. This preliminary check ensures that even though the mode is maintained during stopped or low-accuracy conditions, the actual travel execution only occurs when measurement precision requirements are satisfied.
Data Source
AI summary
The setting processing section of the combine harvester sets a travel mode to an autonomous travel mode or a manual travel mode, and maintains the autonomous travel mode when the combine harvester set in the autonomous travel mode satisfies the autonomous travel maintaining condition.