Movable Vehicle Lamp Modules for Unobstructed Night Beam Output
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Solution Overview
Problem
Existing vehicle lighting systems face challenges in maintaining a consistent light signature both day and night due to regulatory requirements, as a significant portion of the light beam emitted by the lighting module is obstructed by the retracted signaling module, failing to meet minimum light intensity standards.
Innovation Solution
A vehicle lighting system with movable signaling and lighting modules, controlled by a controller, allows the signaling module to retract to reveal the lighting module, enabling the lighting module to occupy a larger emission area, thus avoiding obstruction and meeting regulatory light intensity requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the signaling module is retracted to reveal the lighting module, then the lighting module can be activated at night, but a significant portion of the light beam is obstructed by the retracted signaling module
Solution Approach 1:
The lighting module is made movable in a direction distinct from the signaling module's retraction direction. When the signaling module retracts in the first direction, the lighting module simultaneously moves in a second direction (perpendicular or at an angle) to occupy the space vacated by the signaling module, thereby eliminating light beam obstruction while maintaining compact spatial utilization
Solution Approach 2:
Both the signaling module and lighting module are designed as movable components rather than fixed structures. The signaling module can retract and extend along a first direction, while the lighting module can move along a second direction, allowing dynamic reconfiguration of the lighting system to optimize light beam emission without obstruction
2Illumination intensity
If the signaling module is retracted sufficiently to avoid obstructing the light beam, then light intensity requirements are met, but the available space is limited by other vehicle components
Solution Approach 1:
Instead of requiring the lighting module to move solely in the same direction as the signaling module's retraction (which would demand excessive space), the lighting module moves in a different direction (second direction distinct from the first direction). This dimensional change allows the lighting module to access space in a different spatial plane, effectively utilizing the volume available without being constrained by the limited retraction distance in the original direction
Solution Approach 2:
The dual-movement capability allows the system to dynamically adapt to the constrained space. The controller coordinates the signaling module's retraction in the first direction with the lighting module's movement in the second direction, enabling the lighting module to occupy the space left available by the signaling module's retraction, thereby achieving sufficient light beam emission area within the limited vehicle component space
3Illumination intensity
If the lighting module remains in the visible position, then light beam emission is unobstructed, but the distinctive light signature cannot be maintained during daytime
Solution Approach 1:
The lighting module is designed to be movable between a visible position (for nighttime operation) and an invisible position (for daytime operation), rather than being fixed. The controller automatically positions the lighting module according to the operating mode, enabling the system to maintain both unobstructed light beam emission when needed and consistent light signature appearance across different conditions
Solution Approach 2:
The lighting module serves multiple functions: it provides unobstructed light beam emission when in the visible position during nighttime, and it can be repositioned to the invisible position during daytime to maintain the vehicle's distinctive light signature. This multi-functionality allows a single component to satisfy both regulatory light intensity requirements and aesthetic consistency requirements
Data Source
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AI summary
The invention concerns a lighting device (1) for a motor vehicle, comprising a signalling module (2) that can move in at least a first direction (D1) and a lighting module (4) that can move in a second direction (D3) different from the first direction, the movable lighting module being able to take a position (P41) that is invisible and a position (P42) that is visible from outside the lighting device; the lighting device comprising a controller designed to control a movement of the lighting module module such that: in a first mode, called diurnal mode, the lighting module assumes the invisible position; in a second mode, called nocturnal mode, the lighting module assumes the visible position; the lighting device being characterised in that during the transition from the first mode to the second mode, the controller is designed to control a movement of the signalling module such that at least one part of the signalling module moves in the first direction in order to authorise a movement of the lighting module in the second direction from the invisible position to the visible position.