Vehicle Group Control Device Arrangement Optimization

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Solution Overview

Problem

Existing vehicle group control methods are inefficient as they are restricted by the performance of the vehicle at the head of the group with the longest braking distance, making it difficult to maintain short vehicle-to-vehicle distances during driving.

Innovation Solution

A vehicle group control method and device that assesses the periphery monitoring and movement performance of each vehicle, determining their arrangement within the group to optimize driving efficiency by positioning vehicles with higher performance closer to the front and utilizing information from leading vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If vehicles are arranged based on braking distance (longest braking distance at the head), then safety is improved, but driving efficiency deteriorates and vehicle-to-vehicle distance cannot be maintained short

Engineering Contradiction:
ImprovesafetyVSAvoiddriving efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies local quality by differentiating vehicle arrangement based on individual vehicle characteristics (periphery monitoring performance and movement performance) rather than using a uniform arrangement criterion. Vehicles with higher monitoring performance are positioned at the head to leverage their information acquisition capability, while vehicles with better movement performance can be positioned accordingly, creating a localized optimization of each vehicle's role based on its specific capabilities.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the arrangement parameter from braking distance to a composite evaluation based on periphery monitoring performance and movement performance. This parameter change allows the system to optimize for both safety and driving efficiency by considering multiple performance dimensions simultaneously, enabling shorter vehicle-to-vehicle distances while maintaining safety through enhanced monitoring capabilities.

Inventive Principle:
Principle #35Parameter changes

2Loss of information

If vehicles with higher periphery monitoring performance are positioned at the head, then information acquisition is improved, but vehicles with lower performance may not be able to maintain safe following distance

Engineering Contradiction:
Improveinformation acquisitionVSAvoidsafe following distance
Core Design Contradiction:
Loss of informationVSReliability

Solution Approach 1:

The patent implements feedback by having vehicles with lower periphery monitoring performance utilize the information acquired by leading vehicles through communication. The system continuously monitors vehicle positions, speeds, and environmental data, and feeds this information back to following vehicles, enabling them to maintain safe following distances without requiring each vehicle to have high individual monitoring capability.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent applies universality by creating a multi-functional information sharing system where leading vehicles perform both their own navigation and information provision to following vehicles. The communication system enables following vehicles to perform safety monitoring functions indirectly through received information, making the safety function universal across all vehicles in the group rather than requiring each vehicle to independently possess high monitoring capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS8831820B2Vehicle group control method and vehicle group control device
Publication Date: 2014.09.09 TOYOTA JIDOSHA KK
  • US8831820B2 patent drawing
  • US8831820B2 patent drawing
  • US8831820B2 patent drawing

AI summary

A vehicle group control device for controlling the arrangement of vehicles within a vehicle group including plural vehicles, the vehicle group control device including: a periphery monitoring performance grasping unit which grasps a periphery monitoring performance of each vehicle constituting the vehicle group; and an arrangement determination unit which determines the arrangement of the vehicles within the vehicle group on the basis of the periphery monitoring performance of each vehicle. Accordingly, since the periphery monitoring performance of each vehicle within the vehicle group is grasped and the arrangement of the vehicles within the vehicle group can be determined on the basis of the periphery monitoring performance of each vehicle, it is possible to efficiently drive the entire vehicle group.