Unmanned Driving Control Updates for Process-Specific Vehicle Limits

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Solution Overview

Problem

Existing vehicle operation systems do not adequately adjust operations based on the manufacturing process, leading to excessive restrictions and reduced workability during unmanned driving.

Innovation Solution

A control device and system that acquires and updates unmanned driving information, including speed and turning angle limits, to adapt vehicle operations to specific processes, allowing flexible restriction adjustments and preventing excessive restrictions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If uniform unmanned driving information is applied across all manufacturing processes, then implementation simplicity is maintained, but workability deteriorates due to excessive restrictions

Engineering Contradiction:
Improveimplementation simplicityVSAvoidworkability
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The system dynamically adjusts unmanned driving information based on the current manufacturing process. The control device receives process information and automatically updates speed limits, turning angle limits, and other operational parameters to match the specific requirements of each process stage, transforming static uniform restrictions into dynamic adaptive restrictions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters such as speed limits and turning angle limits according to different manufacturing processes. By modifying these parameters based on process-specific requirements, the system optimizes workability for each stage while maintaining safety, resolving the contradiction between uniform implementation and process-specific optimization.

Inventive Principle:
Principle #35Parameter changes

2Productivity

If high speed limits are set for unmanned driving, then productivity is improved, but safety deteriorates due to increased probability of contact with people

Engineering Contradiction:
Improvemovement efficiencyVSAvoidsafety
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The system applies different speed limits to different manufacturing processes based on local conditions. Processes with high pedestrian traffic receive lower speed limits for safety, while processes with no pedestrians receive higher speed limits for productivity. This localized adaptation resolves the contradiction between uniform safety standards and process-specific optimization.

Inventive Principle:
Principle #3Local quality

3Reliability

If steering wheel operation is restricted during unmanned driving, then safety is improved by preventing steering wheel interference, but ease of operation deteriorates

Engineering Contradiction:
ImprovesafetyVSAvoidoperational flexibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The system dynamically adjusts steering wheel operation restrictions based on whether a person is present in the vehicle during unmanned driving. When no person is present, the steering wheel can be operated normally. When a person is present, the system automatically restricts steering wheel operation to prevent interference, thus adapting safety measures to actual conditions rather than applying uniform restrictions.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4579574A1Control device, system, and method
Publication Date: 2025.07.02 TOYOTA JIDOSHA KK
  • EP4579574A1 patent drawingFigure 1
  • EP4579574A1 patent drawingFigure 2
  • EP4579574A1 patent drawingFigure 3

AI summary

A control device that is mounted on a moving object that is able to be moved by unmanned driving includes: an acquisition unit that acquires update information transmitted from outside of the moving object according to a process from manufacturing to sales of the moving object; a storage unit that stores unmanned driving information used for the unmanned driving; and an update unit that updates the unmanned driving information stored in the storage unit according to the update information.