Combine Autonomous Route Control With Press-to-Allow Travel

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Solution Overview

Problem

Conventional work vehicles face safety and efficiency issues due to unintended autonomous travel initiated by accidental operation of the start button or touch screen, particularly in high-risk routes, which reduces workability and increases safety concerns.

Innovation Solution

An autonomous driving method and system that differentiate between 'allowance operation member-requiring' and 'allowance operation member-nonrequiring' routes, allowing autonomous travel only when the autonomous travel allowance operation member is operated in the former and enabling it without operation in the latter, enhancing safety and workability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If autonomous travel is enabled with a simple start button operation, then ease of operation is improved, but unintended autonomous travel occurs reducing safety

Engineering Contradiction:
Improveease of operationVSAvoidsafety
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies local quality by differentiating between two types of routes: allowance operation member-nonrequiring routes (where autonomous travel starts automatically) and allowance operation member-requiring routes (where autonomous travel requires explicit confirmation). This localized differentiation in operation requirements based on route characteristics resolves the contradiction by maintaining simple operation for low-risk routes while ensuring safety for high-risk routes.

Inventive Principle:
Principle #3Local quality

2Reliability

If risk priority checking is performed for each route, then safety is improved, but workability is reduced due to increased process complexity

Engineering Contradiction:
ImprovesafetyVSAvoidworkability
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent segments the travel route into multiple sections with different risk priorities, and automatically checks the risk priority for each segment. This segmentation allows safety verification to be performed systematically without requiring manual intervention for each route, thus maintaining safety while preserving workability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs automatic risk priority checking for each route segment without requiring manual worker intervention. The autonomous driving control unit itself conducts the safety verification, making the system self-service in terms of safety checking, which maintains safety while avoiding the productivity loss that would result from manual verification processes.

Inventive Principle:
Principle #25Self-service

3Productivity

If autonomous travel continues in high-risk routes, then productivity is maintained, but safety is compromised

Engineering Contradiction:
ImproveproductivityVSAvoidsafety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic control where the autonomous travel execution depends on the risk priority of each route segment. For high-risk segments (allowance operation member-requiring routes), the system dynamically requires explicit worker confirmation before proceeding. This dynamic adjustment ensures safety in high-risk areas while maintaining productivity in low-risk areas where automatic travel is permitted.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20240152158A1Autonomous Driving Method, Work Vehicle, And Autonomous Driving System
Publication Date: 2024.05.09 YANMAR HLDG CO LTD
  • US20240152158A1 patent drawing
  • US20240152158A1 patent drawing
  • US20240152158A1 patent drawing

AI summary

A combine is a work vehicle that autonomously travels on the basis of a preset travel route, and is provided with an autonomous travel allowance switch, which is an autonomous travel allowance operation member that allows autonomous travel, and a control device that functions as an autonomous travel control part that controls autonomous travel based on the travel route. The autonomous travel control part executes autonomous travel based on the travel route while the autonomous travel allowance switch is being operated (pressed).