Vehicle Notification Control Device for Lane-Specific Braking Alerts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle-to-vehicle communication systems generate unnecessary notifications of crash stops in adjacent lanes, which can distract drivers from actual safety threats by frequent alerts.
Innovation Solution
A control device mounted on vehicles acquires position and traveling information of both the host and adjacent vehicles, determining a threshold value based on distance and orientation to selectively notify drivers only of braking events that affect their lane.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vehicle-to-vehicle communication is used to notify drivers of crash stops in further vehicles, then driver alertness is improved, but unnecessary notifications occur when the further vehicle is in adjacent lanes
Solution Approach 1:
The notification system applies local quality by evaluating the specific spatial relationship between the host vehicle and further vehicle. Instead of uniformly notifying all crash stops, the system selectively notifies only when the further vehicle is in the same lane or adjacent lane within a threshold distance, making the notification function adaptive to local spatial conditions.
Solution Approach 2:
The determination unit acts as an intermediary between the communication unit and notification unit. It processes the spatial relationship data and decides whether to trigger notifications, filtering out unnecessary alerts while preserving important safety warnings through intermediate judgment logic.
2Loss of information
If notifications are given for all braking events in further vehicles, then safety information is improved, but driver attention is reduced due to frequent false alarms
Solution Approach 1:
The system changes the parameter of notification trigger conditions by introducing spatial criteria (lane position and distance threshold). This filters the information flow to include only safety-critical notifications, maintaining driver attention while preserving essential safety information through parameter-based selection.
3Reliability
If the notification system monitors all further vehicles, then safety coverage is improved, but false alarms increase when vehicles are in different lanes
Solution Approach 1:
The system applies local quality by evaluating the specific spatial relationship between the host vehicle and further vehicle. Instead of uniformly notifying all crash stops, the system selectively notifies only when the further vehicle is in the same lane or adjacent lane within a threshold distance, making the notification function adaptive to local spatial conditions.
Solution Approach 2:
The system performs partial monitoring by focusing computational resources and notification efforts only on further vehicles that meet the spatial criteria (same or adjacent lane within threshold distance). This partial action approach reduces false alarms while maintaining adequate safety coverage for relevant vehicles.
Data Source
AI summary
A first acquisition unit of a control device mounted on a vehicle acquires first traveling information at least including position information on a host vehicle. A second acquisition unit acquires second traveling information at least including traveling track information on a vehicle ahead when braking occurs in the vehicle ahead. A determination unit determines a threshold value based on the second traveling information acquired by the second acquisition unit and the first traveling information acquired by the first acquisition unit. An output unit gives a notification of braking in the vehicle ahead in accordance with a relationship between a distance and the threshold value determined by the determination unit, the distance being defined between the traveling track information in the second traveling information acquired by the second acquisition unit and the position information in the first traveling information acquired by the first acquisition unit.