ADB Headlamp Dual-Angle Lighting for Downward Beam Visibility
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Solution Overview
Problem
Adaptable driving beam (ADB) headlamps in vehicles are oriented at a downward angle to meet regulatory testing requirements, resulting in reduced visibility by 70-80% due to inadequate illumination of regions below this angle.
Innovation Solution
A method and system for a vehicle headlight that includes a first light function for projecting a beam of light at a downward angle and a second light function that allows the headlight to rotate upward, optically combining both functions to provide enhanced illumination of regions not covered by the standard ADB orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ADB headlamp is oriented at a downward angle to meet regulatory testing requirements, then the headlamp complies with regulations, but the visibility is reduced by 70-80% due to inadequate illumination of regions below this angle
Solution Approach 1:
The lighting system is divided into two independent light functions: the first light function (ADB) projects light at a downward angle for regulatory compliance, while the second light function projects light at a different angle to illuminate regions below the ADB coverage. This segmentation allows each function to address specific illumination needs without compromising the other.
Solution Approach 2:
The headlight system is designed to perform multiple functions simultaneously - the first light function complies with regulatory requirements while the second light function supplements illumination in dark regions. Both functions operate from the same headlight unit, making the system universal in addressing both compliance and visibility needs.
2Manufacturing precision
If the headlight projects a beam at a first downward angle for standard ADB operation, then the beam meets testing requirements, but regions not illuminated by this orientation remain dark and invisible
Solution Approach 1:
The solution introduces a second angular dimension for light projection. While the first light function maintains a precise downward angle for compliance, the second light function projects at a different angle to cover additional spatial regions, effectively adding another dimension to the illumination pattern.
Solution Approach 2:
The headlight system dynamically switches between or combines different projection angles based on operational needs. The second light function can be activated independently or in conjunction with the first, allowing the system to adapt its illumination pattern to maximize visibility while maintaining regulatory compliance.
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
The solution significantly improves visibility by illuminating regions that would otherwise be dark, thereby enhancing the driver's ability to detect objects in the vehicle's path, even when the headlight is oriented at a downward angle.
Implementation Method 1
a light source configured to perform a first light function of projecting a beam of light at a first angle of declension from a horizontal line
Data Source
AI summary
A vehicle includes a headlight. The headlight includes a light source configured to perform a first light function of projecting a beam of light at a first angle of declension from a horizontal line and a second light function of the headlight for projecting the beam of light at a second angle of declension from the horizontal line. The first light function is optically combined with the second light function.