Work Vehicle Route Control With Dynamic Field Margin Lines
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Solution Overview
Problem
Existing technologies for work vehicles struggle to adjust the safety margin dynamically based on the field status or working method, limiting the vehicle's ability to travel closer to the working ground's outline.
Innovation Solution
A control method for work vehicles that sets an allowable limit line defined by a margin value inside the working ground, based on the ground's outline, and generates a route for the vehicle to travel along this line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed safety margin is used to define the headland area, then the work vehicle can maintain a simple and reliable safety buffer, but the vehicle cannot travel closer to the working ground's outline even when field conditions or working methods allow it
Solution Approach 1:
The patent applies dynamics by making the safety margin adjustable rather than fixed. The control system allows the safety margin to be dynamically changed based on field conditions and working methods. The outline recognition unit identifies the working ground's outline, and the control unit adjusts the safety margin to allow the work vehicle to travel closer to the outline when conditions permit, thereby improving productivity while maintaining adaptability to different field statuses and working methods
Solution Approach 2:
The patent applies parameter changes by modifying the safety margin parameter based on recognized field conditions. The control unit changes the safety margin parameter dynamically - reducing it when the vehicle can safely travel closer to the outline and increasing it when greater safety is needed. This parameter adjustment resolves the contradiction by enabling both higher productivity through closer travel and adaptability to varying field conditions
2Productivity
If the safety margin is reduced to allow closer travel to the outline, then operational efficiency improves, but the reliability of safety protection decreases
Solution Approach 1:
The patent applies feedback through the outline recognition unit that continuously monitors the working ground's outline and provides information to the control unit. This feedback loop allows the system to adjust the safety margin dynamically based on actual field conditions. The control unit receives feedback about the vehicle's position relative to the outline and adjusts the safety margin accordingly, maintaining reliability while enabling closer travel when safe, thus improving productivity without compromising safety protection
Data Source
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AI summary
[Problem] To provide a control method for a work vehicle, a control program for a work vehicle, a control system for a work vehicle, and a work system, which enable a work vehicle to travel on a more appropriate route. [Solution] A control method for a work vehicle is a control method for a work vehicle capable of performing work while traveling on a working ground F1. This control method includes: setting a position of an allowable limit line La1 that is defined by a margin value L2 which is a distance to inside of the working ground F1, based on an outline of the working ground F1, and that is a limit position at which protrusion of the work vehicle is allowed; and generating a route (target route R1) for causing the work vehicle to travel (target route R1) on the basis of the allowable limit line La1.