Motor Vehicle Headlamp Glare Elimination via Region Control
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Solution Overview
Problem
Modern vehicle headlamps with high light intensity cause glare from reflective objects, requiring complex control methods to reduce reflections, which are data-intensive and inefficient.
Innovation Solution
Identify positions of two reflective objects in a camera image and control the headlamp to dim not only these objects but also the connecting region between them, reducing the need for detailed control of intermediate objects and minimizing data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all reflective objects are separately identified and controlled to eliminate glare, then glare elimination coverage is improved, but device complexity and data transmission requirements increase
Solution Approach 1:
The patent merges the control of multiple reflective objects by identifying only two outer objects and controlling the entire region between them. Instead of separately controlling each reflective object along the road boundary, the system combines them into a single control region defined by the two outer objects and the connecting line between them, thereby reducing control complexity while maintaining comprehensive glare elimination coverage.
Solution Approach 2:
The patent segments the control approach by dividing the reflective objects into two categories: outer boundary objects that require identification and intermediate objects that are controlled indirectly. By identifying only the two outer objects and controlling the region between them, the system segments the control task to reduce data transmission requirements while maintaining effective glare elimination across all reflective objects in the region.
2Illumination intensity
If high light intensity is emitted from headlamps, then illumination performance is improved, but glare from reflective objects increases
Solution Approach 1:
The patent applies local quality by selectively dimming light intensity in specific regions where reflective objects are located, rather than uniformly reducing headlamp brightness. The system identifies regions containing reflective objects and applies localized dimming to those specific areas while maintaining high illumination intensity in other regions, thereby eliminating glare from reflective objects without compromising overall illumination performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Simplifies glare reduction by focusing on key objects and their connecting regions, reducing light intensity only where necessary, thus minimizing data requirements and achieving effective glare elimination with reduced computational effort.
Implementation Method 1
it is reflected by objects with reflective surfaces such as road signs or reflector posts, for example, and subsequently blinds the driver
Data Source
AI summary
A method for eliminating glare from objects using a headlamp system of a motor vehicle involves determining the positions of at least two objects reflecting from a headlamp of the headlamp system in a camera image produced by a camera of the headlamp system pointing at the area in front of the motor vehicle. The light emitted by the headlamp is dimmed in sections and the area in front is illuminated in such a way that the at least two objects and one region of the area in front, which is represented in the camera image by a connecting image section that connects the at least two objects to one another, are illuminated with reduced light intensity, so that less light is reflected back.