Vehicle External Annunciation Priority for Blind-Intersection Collision Risk
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Solution Overview
Problem
Accidents are more likely to occur at intersections with limited visibility and non-priority intersections due to collisions between vehicles and potential traffic participants that are not visible from the vehicles.
Innovation Solution
An annunciation method that uses an externally-directed annunciator to foresee potential collision risks between vehicles and potential traffic participants, performing a first annunciation to notify those in the vicinity that the vehicle is traveling, and prioritizing this annunciation over secondary notifications as long as the potential collision risk continues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle performs multiple types of annunciation (first and second annunciation) to handle different collision risks, then the communication effectiveness with traffic participants is improved, but the device complexity and control complexity increase
Solution Approach 1:
The annunciation function is segmented into two distinct types: first annunciation for potential collision risks and second annunciation for manifested collision risks. Each type has its own triggering conditions, message content, and priority level, allowing the system to handle different situations with specialized annunciation strategies without requiring a single complex control mechanism
Solution Approach 2:
The system performs preliminary assessment of collision risks by distinguishing between potential and manifested risks before executing annunciation. The first annunciation is prepared and executed in advance for potential risks, while the second annunciation is executed when risks are confirmed, allowing proactive communication while maintaining systematic control
2Reliability
If the vehicle prioritizes the first annunciation over the second annunciation when potential collision risk exists, then the avoidance of potential collision accidents is improved, but the response to manifested traffic participants may be delayed
Solution Approach 1:
The annunciation priority is made dynamic rather than static. When a potential collision risk is detected, the first annunciation automatically takes priority over the second annunciation. However, this priority relationship can change when the potential risk is resolved or when a manifested risk appears, allowing the system to adaptively adjust communication priorities based on real-time conditions
Solution Approach 2:
The system continuously monitors the status of both potential and manifested collision risks, using this feedback to dynamically adjust annunciation priorities. When the potential risk condition changes or a manifested participant appears, the system receives feedback and adjusts the annunciation strategy accordingly, ensuring appropriate response timing
Data Source
AI summary
A potential collision risk between a vehicle and a potential traffic participant predicted to be present ahead in a direction of travel of the vehicle is foreseen. A first annunciation is performed notifying those in a vicinity that the vehicle is traveling, using an externally-directed annunciator installed in the vehicle, in response to the potential collision risk being foreseen. Note that when a manifested collision risk between the vehicle and a manifested traffic participant confirmed ahead in the direction of travel of the vehicle is sensed, a second annunciation notifying those in the vicinity regarding collision avoidance actions of the vehicle may be performed using the externally-directed annunciator. However, the first annunciation is prioritized over the second annunciation as long as the potential collision risk continues.