Variable Vehicle Lamp System Controlling Brightness and Irradiation Angle
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Solution Overview
Problem
Conventional vehicle headlamps fail to adjust lighting brightness and irradiation angle effectively based on vehicle speed and road environment, leading to inadequate illumination of blind spots and potential glare for other drivers or pedestrians.
Innovation Solution
A variable lamp system for moving vehicles that automatically controls irradiation angle and brightness using speed information and surrounding road data, classifying driver tendencies to optimize lighting settings across different road conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the head lamp automatically adjusts the irradiation direction based on steering wheel operation direction, then the driver's visibility is improved, but the lighting may cause glare to other drivers or pedestrians and fail to illuminate blind spots
Solution Approach 1:
The patent applies local quality by adjusting different regions of the headlamp beam independently. The control unit selectively controls individual LEDs or LED groups to illuminate specific areas (blind spots, curves) while suppressing light in other directions to prevent glare. This allows different parts of the lighting system to have different functions - some LEDs provide high-intensity illumination for visibility, while others are controlled to avoid harmful glare to other road users.
Solution Approach 2:
The patent implements dynamics by making the irradiation pattern adaptive and changeable in real-time. The headlamp system dynamically adjusts the beam direction and intensity based on vehicle speed, steering angle, road curvature, and detected surrounding objects. This dynamic control allows the lighting to respond to changing driving conditions, optimizing visibility while minimizing glare through continuous adjustment of active LED elements.
2Extent of automation
If the ADB function is activated based on driver-specified speed threshold, then the lighting control is automated, but the lighting does not consider the road environment and may become darker on dark roads or brighter on bright places
Solution Approach 1:
The patent applies feedback by continuously monitoring multiple parameters including vehicle speed, steering angle, road curvature, and surrounding environment brightness. The control unit processes this feedback information in real-time to adjust the headlamp output accordingly. This multi-parameter feedback system enables the lighting to adapt to both the driving dynamics and the environmental conditions, resolving the contradiction between automation and environmental adaptability.
Solution Approach 2:
The patent implements universality by creating a comprehensive control system that handles multiple functions: automatic activation based on speed, dynamic beam shaping based on steering input, adaptive adjustment based on road curvature, and environmental brightness compensation. This multi-functional system ensures the headlamp performs optimally across diverse driving scenarios and road conditions.
3Device complexity
If the head lamp radiates lighting in fixed directions, then the device complexity is low, but the lighting cannot illuminate blind spots or adjust to road curves
Solution Approach 1:
The patent applies segmentation by dividing the headlamp into multiple independently controllable LED modules or zones. Each segment can be controlled separately to illuminate specific areas such as blind spots, road curves, or intersections. This segmentation allows the system to achieve complex illumination patterns without requiring a single complex moving mechanism, balancing adaptability with manageable system complexity.
Data Source
AI summary
Provided are a variable lamp system for moving vehicles capable of controlling lighting brightness and irradiation angle by using speed information of the moving vehicle and surrounding road information of the moving vehicle, and a moving vehicle including the same.