Drive Support Apparatus Visibility Override Logic
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Solution Overview
Problem
Existing drive support apparatuses for vehicle-to-vehicle communication systems do not adequately provide support information to drivers when visibility is compromised, potentially leading to inappropriate merging operations due to incorrect assumptions about traffic conditions on priority roads.
Innovation Solution
A drive support apparatus that includes a support processor to determine the appropriate output of support information based on the collision possibility, priority road determination, and environmental conditions such as visibility and signal device states, ensuring that support information is provided even when the vehicle is on a priority road if visibility is poor or if the signal device does not grant right of way.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the self-vehicle travels on a priority road, then the support information output is suppressed to avoid unnecessary notifications, but the driver may not receive necessary collision avoidance information when visibility is poor
Solution Approach 1:
The drive support apparatus dynamically adjusts the support information output based on real-time visibility conditions. When visibility is poor (e.g., foggy night), the system overrides the priority road suppression rule and outputs support information about other vehicles on non-priority roads, ensuring the driver receives necessary collision avoidance information while maintaining normal suppression under good visibility conditions.
Solution Approach 2:
The system changes the output parameter of support information based on visibility conditions. Under good visibility, the output is suppressed for priority roads; under poor visibility, the output is enabled despite priority road status. This parameter change resolves the contradiction by adapting the information output to actual environmental conditions.
2Ease of operation
If the drive support apparatus assumes other vehicles will yield on non-priority roads, then the support information can be suppressed, but this assumption may be incorrect when visibility is compromised
Solution Approach 1:
The system prepares countermeasures in advance for the case when other vehicles do not yield as expected. By detecting poor visibility conditions, the system proactively outputs support information about other vehicles on non-priority roads, preventing the driver from making incorrect assumptions about traffic conditions and enabling timely collision avoidance actions.
Solution Approach 2:
The system uses visibility detection as feedback to adjust its support information output strategy. When visibility is poor, the feedback triggers the system to output support information even on priority roads, correcting the initial assumption that other vehicles will yield and ensuring the driver has accurate information for safe driving decisions.
3Reliability
If the drive support apparatus outputs support information about other vehicles on non-priority roads, then collision avoidance is improved, but the information may be unnecessary when visibility is good and traffic rules are clearly visible
Solution Approach 1:
The system dynamically controls the output of support information based on real-time visibility assessment. When visibility is good, the system suppresses support information output for priority roads, avoiding unnecessary notifications. When visibility is poor, the system enables output to ensure collision avoidance information is provided, thus adaptively resolving the contradiction between providing necessary information and avoiding information overload.
Data Source
AI summary
A drive support apparatus, including a support processor that sets a support level according to a collision risk determined by a collision possibility determiner, when a traveling road is not determined as a priority road by a travel road information obtainer, and outputs support information. Further, the support processor determines whether a visibility state is good, and determines whether a display state of a signal device is giving a right of way to the self-vehicle, when the traveling road is not determined as a priority road by the travel road information obtainer, and outputs support information. Then, upon having a determination that the visibility state is compromised, or that the display state of the signal device is abstained from giving a right of way to the self-vehicle, the support processor outputs the support information even when the traveling road is a priority road.