Driving Assistance Apparatus Intersection Detection Precision
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Solution Overview
Problem
Existing driving assistance systems often provide unnecessary assistance, irritating drivers and failing to accurately detect when assistance is required, especially at unsignalized intersections without infrastructure facilities.
Innovation Solution
A driving assistance apparatus that uses image capturing, sound collecting, and three-dimensional information obtaining means to determine the necessity of assistance based on vehicle speed, presence of preceding vehicles, traffic lights, and turn signals, adjusting assistance levels accordingly to ensure precise detection and provision of assistance only when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If driving assistance is provided based on vehicle speed alone, then assistance is provided more frequently, but unnecessary assistance is provided causing driver irritation
Solution Approach 1:
The system changes multiple parameters simultaneously: vehicle speed threshold (V≤V1), intersection type (unsignalized), presence of preceding vehicles, and traffic light status. By combining these parameters, the system achieves high detection accuracy while avoiding unnecessary assistance that would irritate drivers.
2Reliability
If driving assistance is provided at all intersections, then assistance coverage is increased, but assistance is provided unnecessarily at intersections with infrastructure facilities
Solution Approach 1:
The system applies different assistance strategies based on local characteristics of intersections. At unsignalized intersections without preceding vehicles, full assistance is provided. At intersections with traffic lights or preceding vehicles, assistance is adjusted or prohibited. This localized approach improves accuracy while maintaining efficiency.
3Measurement precision
If multiple detection conditions are added to improve precision, then detection accuracy increases, but system complexity increases
Solution Approach 1:
The detection system is segmented into independent modules: vehicle speed detection, intersection type detection, preceding vehicle detection, and traffic light detection. Each module operates independently and contributes to the final assistance decision. This segmentation achieves high precision while managing system complexity through modular design.
Data Source
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Figure 2
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AI summary
To provide a driving assistance apparatus that can detect an intersection at which driving assistance is required with a high degree of precision so that the driving assistance can be provided more appropriately, a driving assistance apparatus 2 includes: a vehicle speed acquisition unit 64 that obtains information indicating a vehicle speed of a vehicle 1; an assistance condition determination unit 98 that determines whether or not an assistance activation condition, which is a condition for providing a driver of the vehicle 1 with driving assistance, is satisfied on the basis of whether or not a vehicle speed V obtained by the vehicle speed acquisition unit 64 is equal to or lower than a reference vehicle speed V1, and on the basis of information relating to an intersection or a preceding vehicle in front of the vehicle 1; and an assistance execution unit 100 that executes, as the driving assistance, assistance including at least one of warning issuance to the driver, braking control, and steering control when the assistance condition determination unit 98 determines that the assistance activation condition is satisfied.