Vehicle Vision and Braking Control for Green-Light Start Alerts
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Solution Overview
Problem
Drivers often fail to notice when a traffic light turns green due to inattention, leading to delayed vehicle movement and potential collisions, as they are distracted by other activities while waiting at red lights.
Innovation Solution
A vehicle vision system utilizing forward and rearward cameras to detect when a leading vehicle starts moving after a traffic light turns green and alert the driver to proceed, while also adjusting braking systems to mitigate collision risks with both leading and following vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If drivers wait at red lights while engaged in other activities, then drivers can perform personal tasks, but drivers fail to notice when the traffic light turns green leading to delayed vehicle movement
Solution Approach 1:
The system enables the vehicle to monitor traffic light status and detect leading vehicle movement automatically without requiring driver attention. The camera-based system performs self-service by capturing images, processing them to detect green light status and vehicle movement, and generating alerts independently of driver engagement in other activities.
Solution Approach 2:
The system provides feedback to the driver about traffic light status changes and leading vehicle movement. By continuously monitoring and alerting the driver when the light turns green or when the leading vehicle moves, the system creates a feedback loop that restores driver awareness without requiring continuous active monitoring by the driver.
Data Source
AI summary
A vehicular collision mitigation method includes disposing at a vehicle a plurality of cameras, at least two non-camera sensors, and a control that processes data captured by the cameras and non-camera sensors. When the equipped vehicle is traveling forward, and via processing at the control of provided data captured by the forward viewing camera and the at least two non-camera sensors, it is determined if the vehicle is approaching a pedestrian or other vehicle forward of the vehicle. Responsive to such determination, braking by an automatic emergency braking system is controlled to mitigate collision with the pedestrian or other vehicle. Responsive to determination that a following vehicle is following the vehicle within a threshold distance from the vehicle and is approaching the vehicle above a threshold rate of approach, braking by the automatic emergency braking system is adjusted to mitigate collision at the rear of the vehicle by the following vehicle.