Automotive Headlight LED Segmentation for Dynamic Beam Control
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Solution Overview
Problem
Current automotive headlight systems struggle to adapt lighting characteristics, such as range and intensity, to varying traffic conditions and environments without increasing costs or complexity, while ensuring driver comfort and avoiding dazzling other drivers.
Innovation Solution
A lighting system with a coded light module and a complementary LED module that adjusts light beam characteristics by selectively activating LEDs based on environmental and traffic data, allowing for progressive changes in beam range and intensity without mechanical parts, enabling functions like motorway and city lights without adding complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a lighting system dynamically adjusts light beam characteristics (range and intensity) based on traffic conditions, then driver comfort and visibility are improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic adjustment of lighting characteristics by selectively activating groups of LEDs within the projector based on detected traffic conditions. The system transitions from static headlight configurations to dynamic, condition-based lighting adaptation, allowing the beam range and intensity to vary in real-time according to environmental factors and presence of other vehicles.
Solution Approach 2:
The lighting module is divided into multiple groups of LEDs that can be selectively activated or deactivated. This segmentation allows independent control of different portions of the light beam, enabling precise adjustment of beam characteristics without requiring complete system redesign. Each LED group can be controlled separately to achieve desired lighting patterns.
2Adaptability or versatility
If multiple lighting modules are added to achieve dynamic lighting adjustment, then lighting adaptability improves, but manufacturing cost increases
Solution Approach 1:
The patent achieves multiple lighting functions (low beam, high beam, adaptive beam adjustment) using a single projector housing containing multiple LED groups. Instead of requiring separate lighting modules for different functions, the system provides multi-functionality through selective activation of LED groups, reducing the total number of components needed and simplifying manufacturing.
Solution Approach 2:
The patent combines multiple lighting functions into a unified projector system. The housing contains multiple LED groups that work together to provide various lighting modes, merging what would traditionally require separate modules into a single integrated unit, thereby reducing assembly complexity and manufacturing costs.
3Adaptability or versatility
If mechanical components are used to adjust light beam characteristics, then adaptability improves, but device complexity and maintenance requirements increase
Solution Approach 1:
The patent replaces mechanical adjustment mechanisms (such as movable mirrors, rotating reflectors, or sliding components) with an electrical control system that selectively activates different LED groups. This substitution eliminates moving parts and mechanical complexity while achieving the same adaptability through electronic control, thereby reducing maintenance requirements and improving reliability.
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
This solution enhances driver comfort by dynamically adjusting light beams to improve visibility and safety while maintaining cost-effectiveness and aesthetic simplicity, avoiding the need for complex mechanical equipment and allowing for standardized projector installation across different vehicles.
Implementation Method 1
The light source of the lighting module is composed of a plurality of LEDs
Data Source
Figure 1
Figure 2~3
AI summary
The system has a headlight (1) with a case (17) to accommodate dim light modules (2, 2'), a complementary light module (3) and a road light module (4). One of the modules (2) emits dim light beam, and has a cut-off line with horizontal lower and upper levels. The complementary module to emit light beam has a cut-off line aligned on the lower level of the former line. The complementary module has a light source formed of an LED activated based on the observation of traffic i.e. distance, with other vehicle in proximate environment to modify characteristics of the beam emitted by the module (2). An independent claim is also included for a method for implementing a lighting system of motor vehicle.