Daytime Running Light Visibility Control via Dynamic Illumination Adjustment
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Solution Overview
Problem
Modern motor vehicle lighting systems, especially those with integrated daytime running lights and turn signals, face challenges in ensuring the visibility of the flashing light, as the luminosity and design of daytime running lights can impair the recognition of the turn signal light.
Innovation Solution
A motor vehicle lighting system that temporarily adjusts the lighting characteristics of the daytime running light by reducing luminosity or spatially displacing the illuminated area when the turn signal light is activated, using a control unit to improve the visibility of the turn signal light, and can also periodically change these characteristics in sync with the flashing frequency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the illuminated area of the daytime running light is spatially displaced away from the turn signal light, then the visibility of the turn signal light is improved, but the illuminated area coverage is reduced
Solution Approach 1:
The illuminated area of the daytime running light is made dynamically adjustable. The control unit temporarily displaces the illuminated area away from the turn signal light when turn signal activation is detected, maintaining full area coverage during normal operation while improving turn signal visibility when required
Solution Approach 2:
The illuminated area of the daytime running light is periodically displaced in synchronization with the turn signal's flashing frequency. This periodic spatial modulation creates visual separation that enhances turn signal recognition without permanently reducing the illuminated area coverage
Data Source
AI summary
The system has indicator lights (1, 2) indicating warning turn signals at front of a motor car. Headlights (3, 4) e.g. LED headlight or day driving lamp, output light with a determined lighting characteristic to a front of the motor car. One of switches (6, 7) is set for switching on/off of the indicator light. A control unit (5) controls lighting characteristic of the headlights. A headlight module is integrated with the indicator light and the headlights. The control unit reduces illumination characteristics of the headlights in switched-condition of the indicator light. An independent claim is also included for a method for operating a motor car lighting system.