Vehicle Merge Control Using Predictive Interference Suppression
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Solution Overview
Problem
The challenge in autonomous vehicle travel control systems is the difficulty in ensuring safe and secure merging maneuvers between vehicles, particularly when one vehicle merges onto a main road, leading to potential collisions and occupant anxiety due to inadequate communication and control coordination.
Innovation Solution
A travelling control system that includes a server generating predictive merging interference information, allowing vehicles to send and receive interference suppressing requests via inter-vehicle communication to adjust their controls and avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If each vehicle autonomously executes travelling control and notifies other vehicles, then vehicle autonomy is improved, but safety and coordination in merging sections deteriorate due to insufficient communication time and distance
Solution Approach 1:
The patent introduces a server as an intermediary that receives travelling control information from multiple vehicles, predicts merging interference, and coordinates communication between vehicles. This mediator enables centralized safety monitoring and prediction, resolving the contradiction by providing reliable safety coordination without reducing vehicle autonomy.
Solution Approach 2:
The server performs preliminary prediction of merging interference before actual merging occurs. By analyzing travelling control information in advance and identifying potential conflicts, the system can prepare coordination strategies proactively, ensuring safety is maintained while vehicles operate autonomously.
2Loss of information
If vehicles approach within predetermined distance for communication, then communication capability is improved, but collision risk increases due to reduced safety margin
Solution Approach 1:
The server acts as a communication intermediary that enables vehicles to exchange travelling control information without requiring direct proximity. Vehicles can communicate their intentions and receive coordination instructions through the server, maintaining safe distances while ensuring effective information exchange.
Solution Approach 2:
Vehicles notify the server of their travelling intentions in advance, allowing the server to predict potential merging interference before vehicles approach each other. This preliminary notification system enables coordination to be established before vehicles enter critical proximity, preventing both communication failures and collisions.
3Productivity
If notification is sent after vehicles approach, then communication efficiency is improved, but response time for travelling control deteriorates
Solution Approach 1:
Vehicles send notification information to the server in advance of actual merging maneuvers. The server performs prediction and coordination beforehand, ensuring that travelling control adjustments can be executed with adequate response time while maintaining communication efficiency through pre-established information exchange.
Data Source
AI summary
A travelling control system includes a plurality of vehicles each including a controller, a server including a generator configured to generate a travelling control information for the plurality of vehicles, a predictor configured to predict a merging interference between a first vehicle travelling from a merging road toward a main road and a second vehicle travelling on the main road, a sender which is provided in the first vehicle to send an interference suppressing request, and a receiver which is provided in the second vehicle to receive the interference suppressing request. The controller of the second vehicle travelling on the main road is configured to execute interference suppressing control of suppressing an approach of the second vehicle to the first vehicle travelling from the merging road to the main road, in a case that the receiver receives the interference suppressing request from the first vehicle.