Driving Assistance Apparatus Intersection Priority
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Solution Overview
Problem
Existing driving assistance systems without map information fail to assess the priority of roads at intersections, leading to unnecessary assistance and driver frustration.
Innovation Solution
A driving assistance apparatus that registers intersections based on the trajectories of host and other vehicles, determining priority and adjusting assistance levels accordingly, with features like trajectory monitoring, candidate point calculation, and direction analysis to optimize assistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driving assistance is performed at all intersections without map information, then intersection collision prevention is improved, but driver frustration increases due to unnecessary assistance
Solution Approach 1:
The system applies different levels of assistance based on local characteristics of each intersection. By determining whether an intersection is a level crossing or grade separation using trajectory analysis, the system provides high-level assistance only where needed (level crossings) and reduces or eliminates assistance at grade separations, creating localized quality in the assistance provision
Solution Approach 2:
The system changes the parameter of assistance level based on the determined type of intersection. When a level crossing is detected through trajectory analysis, the assistance level is increased to provide collision prevention; when a grade separation is detected, the assistance level is reduced or eliminated, avoiding unnecessary driver frustration
2Ease of operation
If driving assistance is reduced for grade separations, then driver frustration is reduced, but collision prevention capability may be compromised
Solution Approach 1:
The system performs preliminary analysis of vehicle trajectories before providing assistance to determine the type of intersection. By analyzing the travel paths of multiple vehicles in advance, the system identifies grade separations and level crossings beforehand, allowing it to reduce assistance for grade separations without compromising safety, while maintaining high assistance levels for level crossings where collision risk exists
Data Source
AI summary
A driving assistance apparatus includes a trajectory information acquiring unit, an intersection registering unit, and a driving assistance unit. The intersection registering unit registers in a storage unit as a specific intersection, an intersection which a host vehicle passes through after another vehicle has passed through. The driving assistance unit makes a level of driving assistance performed in a predetermined area near the specific intersection higher than the level of driving assistance performed in the predetermined area near another intersection.