Work Vehicle Route Control for Reverse Return or Forward Turning

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Solution Overview

Problem

Conventional automatic traveling systems for work vehicles equipped with large work instruments face difficulties in making turns, leading to reduced work efficiency due to increased overall size, which complicates navigation along pre-generated target routes.

Innovation Solution

An automatic traveling method and system that generates target routes with multiple straight routes, allowing the work vehicle to automatically travel along these routes and receive settings to either reverse back to the start position or make turns to adjacent routes based on user operations, optimizing the turning process to improve efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the work vehicle is equipped with a large work instrument, then the work capacity is improved, but the overall size increases making it difficult to make turn travels

Engineering Contradiction:
Improvework capacityVSAvoidturning capability
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent applies dynamics by making the traveling mode adjustable between automatic and manual based on operational needs. The control unit switches between automatic traveling control along pre-generated routes and manual traveling control during turning operations, allowing the system to adapt its control characteristics to the specific operational phase and vehicle configuration.

Inventive Principle:
Principle #15Dynamics

2Extent of automation

If the work vehicle follows a pre-generated target route with straight and turn routes, then the automatic traveling is improved, but the work efficiency decreases for vehicles with large work instruments

Engineering Contradiction:
Improveautomatic travelingVSAvoidwork efficiency
Core Design Contradiction:
Extent of automationVSProductivity

Solution Approach 1:

The patent segments the traveling operation into distinct phases: automatic traveling along straight routes and manual turning operations. The control unit separates the control functions by allowing automatic control for linear path following while switching to manual control for turning maneuvers, optimizing each phase independently based on the vehicle's physical constraints.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically switches between automatic and manual traveling modes based on the operational context. The control unit monitors the vehicle's position and route requirements, automatically transitioning between controlled automatic traveling and manual operation to maintain both automation benefits and operational efficiency.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the work vehicle makes turn travels, then the route coverage is improved, but the overall size and work instrument configuration make turning difficult

Engineering Contradiction:
Improveroute coverageVSAvoidturning maneuverability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent implements dynamic mode switching that allows the vehicle to achieve full route coverage through automatic traveling while reserving manual control for turning operations. This dynamic adaptation enables the system to overcome physical constraints during maneuvers while maintaining automated efficiency during linear travel segments.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20230070542A1Automatic Traveling Method, Automatic Traveling System, And Automatic Traveling Program
Publication Date: 2023.03.09 YANMAR HLDG CO LTD
  • US20230070542A1 patent drawing
  • US20230070542A1 patent drawing
  • US20230070542A1 patent drawing

AI summary

A route generating processor generates a target route R that includes a plurality of straight routes, along each of which a work vehicle is caused to automatically travel from a start position to an end position. A receiving processor receives a first setting operation to set the work vehicle, after reaching an end position of a first straight route, to travel rearward toward a start position of the first straight route, or a second setting operation to set the work vehicle, after reaching the end position of the first straight route, to make a turn traveling, in a front, up to a second straight route.