Vehicle Grill Lighting Reflection Structure for Glare Suppression
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Solution Overview
Problem
Conventional grill lighting systems are prone to high repair costs due to lens damage in collisions and suffer from glare issues, which impair aesthetic appeal and aerodynamic performance.
Innovation Solution
A grill lighting lamp system with a stepped-shaped reflection portion and an invalid portion to absorb glare, positioned to reduce lens exposure and enhance light distribution, incorporating a micro lens array or multi-facet lens for improved light reflection and aerodynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the lens is arranged adjacent to the front grill cover to illuminate the grill, then the grill lighting effect is achieved, but the lens is easily damaged in front collision, increasing repair cost
Solution Approach 1:
The grill assembly is segmented into separate functional modules: the optical device (lens) is separated from the front grill cover and integrated into the bumper assembly. This segmentation allows the lens to be positioned away from the collision-prone front grill cover while still achieving the desired grill lighting effect through coordinated positioning and control.
2Shape
If the micro lens array is applied to perform welcome light function, then a specific pattern may be drawn on road surface, but glare is generated in shaded section between patterns due to light not reflected forward
Solution Approach 1:
The reflective surface is designed with locally differentiated properties: a first reflective surface facing forward to reflect light forward, and a second reflective surface facing upward to reflect light upward. This local quality differentiation directs light into specific zones, preventing glare in shaded sections while maintaining the desired pattern formation capability.
Solution Approach 2:
The solution adds a vertical dimension to light reflection by introducing the upward-facing second reflective surface. This creates multiple light reflection zones (forward and upward) that work together to eliminate glare in previously shaded areas while preserving the pattern-forming function on the road surface.
3Illumination intensity
If the lens is exposed toward the front to illuminate the grill, then the lighting function is achieved, but the lens is vulnerable to damage from front or rear collision
Solution Approach 1:
The optical device is nested within the bumper assembly rather than being exposed on the front grill cover. This nested configuration protects the lens from direct exposure to collision forces while maintaining its lighting function through strategic positioning and optical design that accounts for the nested arrangement.
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 system decreases repair costs by protecting the lens, suppresses glare, and enhances the aesthetic and aerodynamic performance of vehicle exterior lighting while improving heat resistance and pedestrian safety.
Implementation Method 1
a plurality of reflection portions configured to reflect the light irradiated from the optical device toward outside of the vehicle
Implementation Method 2
an invalid portion provided in a stepped shape between the plurality of reflection portions and configured to absorb glare light not reflected forward among light incident on the reflection portion from the optical device
Data Source
AI summary
The present disclosure relates to a grill lighting lamp system and includes a grill part provided in a vehicle and an optical device configured to irradiate light to the grill part. The grill part includes a plurality of reflection portions configured to reflect the light irradiated from the optical device toward the outside of the vehicle and an invalid portion provided in a stepped shape between the plurality of reflection portions and configured to absorb glare light not reflected forward among light incident on the reflection portion from the optical device. According to the present disclosure, it is possible to minimize damage to the optical device in the event of a front collision of the vehicle and suppress a glare phenomenon from occurring upon grill lighting.