Driving Support Apparatus Blind Angle Rank Evaluation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing driving support apparatuses often provide redundant information to drivers when they can already see oncoming vehicles, leading to confusion and a troublesome feeling, especially when the vehicles are of different sizes, causing blind spots that drivers cannot recognize.
Innovation Solution
A driving support apparatus that analyzes the position and type of oncoming vehicles using exterior information and sensors to set blind angle ranks based on the relationship between lead and following vehicles, determining when to inform the driver of necessary support information to reduce confusion and ensure safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the driving support apparatus informs the driver of support information indicating collision risk when an oncoming straight-ahead vehicle approaches the traffic intersection, then the driver is informed of potential hazards, but the driver feels confused and disturbed due to redundant information when the vehicle is already visible
Solution Approach 1:
The system applies different information provision strategies to different local situations: when the driver can already see the oncoming vehicle, no support information is provided; when the following vehicle is in the blind angle, support information is provided. This localized differentiation resolves the contradiction between providing safety information and avoiding driver confusion.
Solution Approach 2:
Instead of always providing support information when an oncoming vehicle is detected, the system inverts the logic by providing information only when the driver cannot see the vehicle (blind angle condition). This inversion eliminates redundant information while maintaining safety coverage.
2Ease of operation
If the driver is not informed of support information about oncoming vehicles to reduce troublesome feeling, then driver confusion is reduced, but the driver cannot be informed of hazards when following vehicles are in blind angles
Solution Approach 1:
The system provides support information selectively based on the specific situation: when the following vehicle is in the blind angle of the lead vehicle, support information is provided to ensure safety; when the driver has direct visibility, no information is provided to avoid confusion. This resolves the contradiction between reducing troublesome feelings and ensuring safety information provision.
3Reliability
If the driving support apparatus provides support information for all oncoming vehicles, then comprehensive safety coverage is achieved, but redundant information is provided when vehicles are visible to the driver
Solution Approach 1:
The system extracts and provides only the necessary support information by determining whether the following vehicle is in the blind angle. This extraction principle eliminates redundant information about visible vehicles while maintaining comprehensive coverage for hidden vehicles, resolving the contradiction between comprehensive safety coverage and information quality.
Data Source
AI summary
When an own vehicle waits to turn left or right, a vehicle data processing unit processes information of an oncoming vehicle based on data analyzed by data analyzing units. A support processing unit sets a blind angle rank according to a difficulty degree of recognizing a following vehicle due to the blind angle of a lead vehicle from the relationship in the vehicle body size between the lead and following vehicles based on the oncoming vehicle information, and sets the highest blind angle rank value as an oncoming straight-ahead vehicle rank flag. It also sets an evaluation rank according to a risk degree when the own vehicle turns left or right, based on the oncoming straight-ahead vehicle rank flag and an oncoming vehicle rank flag set according to the size of an oncoming vehicle waiting to turn left or right, and informs the driver of driving support information according to the evaluation rank.