Vehicle Lamp Shadow Area Control via Segmented Beam Pattern
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Solution Overview
Problem
Current vehicle lamps generate glare towards drivers of preceding or opposite vehicles, obstructing their field of view and increasing the risk of accidents, especially at night, due to fixed lighting patterns that do not adapt to the location and movement of other vehicles.
Innovation Solution
A vehicle lamp system that includes a lamp component, an image acquisition component, a recognition component, and a control component to form a shadow area by adjusting the light pattern based on the location and movement of a front vehicle, using a combination of fixed and variable ranges to prevent glare and ensure a clear field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the head lamp is turned on to illuminate the road ahead, then the driver's field of view is improved, but glare is generated toward the driver of a preceding vehicle or an opposite vehicle, obstructing their field of view
Solution Approach 1:
The beam pattern is divided into multiple pattern areas (first through fourth pattern areas) corresponding to different road sections. The control component selectively controls the light amount of each pattern area independently based on the location of other vehicles, allowing illumination of needed areas while preventing glare to affected areas.
Solution Approach 2:
Different pattern areas have different light amounts applied locally based on the location of other vehicles. The control component adjusts the illumination characteristics of specific pattern areas (first, second, third, or fourth) individually, creating local variations in light intensity to prevent glare while maintaining overall illumination.
2Object-affected harmful factors
If the light amount is reduced in areas corresponding to other vehicles to prevent glare, then the harmful effect to other drivers is reduced, but the overall illumination coverage and brightness may be compromised
Solution Approach 1:
The control component dynamically adjusts the light amount of each pattern area based on real-time detection of other vehicles' locations. The illumination pattern is not fixed but adapts continuously to the driving environment, maintaining optimal illumination while preventing glare as vehicles enter or leave detection zones.
Solution Approach 2:
The system uses a feedback mechanism where the control component receives information about other vehicles' locations and continuously adjusts the light amount of corresponding pattern areas. This closed-loop control ensures that illumination is optimized while glare is prevented based on actual road conditions.
Data Source
AI summary
A lamp for a vehicle is provided. The lamp for the vehicle includes a lamp component to form a beam pattern that includes a plurality of pattern areas, an image acquisition component to acquire a forward view image of the vehicle at a predetermined period, a recognition component to recognize a front vehicle from the forward view image, and a control component to control a light amount of at least one pattern area that corresponds to the front vehicle among the plurality of pattern areas to form a shadow area. In particular, the control component controls a light amount of at least one pattern area, including a width of the front vehicle and predetermined fixed ranges added to both sides of the front vehicle, among the plurality of pattern areas to form the shadow area.