Asymmetrical Glare-Free High-Beam Headlight Control
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Solution Overview
Problem
Existing vehicle lighting systems with Adaptive Driving Beam (ADB) function are complex and costly, requiring 80 or more LEDs, which limits their availability due to high sensor technology, sensor numbers, and control complexity.
Innovation Solution
An asymmetrical ADB system using a front camera connected to an ADB regulating unit to control LEDs, where the own lane is maintained in high-beam and ADB mode, while the oncoming lane is switched to low-beam, reducing the number of LEDs needed and simplifying control complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ADB systems use 80 or more LEDs with complex sensor technology and control methods, then glare-free high-beam functionality is achieved, but device complexity and cost increase significantly
Solution Approach 1:
The patent extracts and removes unnecessary components from the traditional ADB system. Specifically, it eliminates the need for multiple sensors and complex control units by using a simplified setup with only a front camera and a reduced number of LEDs (2-10 LEDs) to achieve the same glare-free high-beam functionality, thereby reducing device complexity while maintaining reliability
Solution Approach 2:
The patent replaces expensive, complex sensor technology and control systems with a more affordable approach using minimal LEDs and a simple camera-based system. This substitution reduces both the cost and complexity of the ADB system while maintaining the essential glare-free functionality
2Area of stationary object
If traditional ADB systems use 80 or more LEDs, then complete lane coverage is achieved, but manufacturing cost increases
Solution Approach 1:
The patent segments the illumination task by using a camera to detect road conditions and selectively activating only the necessary LEDs (2-10 LEDs) to illuminate specific areas. This segmented approach allows complete lane coverage to be achieved dynamically rather than requiring all LEDs to be permanently active, thereby reducing manufacturing costs while maintaining illumination area coverage
Solution Approach 2:
The patent applies partial action by using only 2-10 LEDs instead of 80 or more LEDs. The system activates only the minimum number of LEDs needed to achieve the desired illumination effect based on real-time road condition detection, thereby reducing manufacturing costs while maintaining sufficient coverage of the illumination area
3Device complexity
If asymmetric headlight design is used to illuminate only own lane with ADB mode, then control complexity is reduced, but illumination coverage in oncoming lane is limited
Solution Approach 1:
The patent applies local quality by implementing asymmetric headlight design where different illumination modes are used for different spatial zones. The own lane receives ADB-mode illumination while the oncoming lane receives standard high-beam or low-beam illumination, optimizing control complexity by applying different quality characteristics to different local areas based on their specific requirements
Data Source
AI summary
An arrangement for producing a glare-free high-beam for vehicles is disclosed with headlights, which have a plurality of LEDs controllable by an ADB control and regulating unit and that a front camera is provided which is connected with the ADB control and regulating unit and which is designed to transmit information about oncoming and/or preceding vehicles to the ADB control unit, the arrangement being characterized in that the headlights are designed to generate an ADB illumination area asymmetrically only for an area of the own lane and that the headlights are designed to generate for an area of the oncoming lane only a low-beam area and a high-beam area. A method for producing an asymmetrical, glare-free high-beam is also disclosed.