Vehicle Daytime Running Light Adaptive Brightness Control
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Solution Overview
Problem
Daytime running lights on vehicles can cause light blindness to oncoming drivers and pedestrians in low illumination conditions while being insufficiently visible in bright environments, compromising safety and visibility.
Innovation Solution
A vehicle-mounted daytime running light apparatus that adjusts its light output based on peripheral illumination intensity and brightness, using a controller connected to photo and rain sensors, and includes a bypass module to manage temperature and prevent damage, allowing the light output to adapt dynamically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the daytime running light uses a regulated light amount or larger, then visibility of the vehicle to other drivers is improved, but light blindness occurs to drivers in oncoming vehicles and pedestrians in low illumination conditions
Solution Approach 1:
The patent applies dynamics by making the light amount of the daytime running light adjustable rather than fixed. The controller dynamically changes the light output based on peripheral illumination conditions detected by sensors, allowing the system to adapt between high visibility requirements and light blindness prevention needs.
Solution Approach 2:
The patent changes the illumination parameter of the daytime running light based on environmental conditions. By detecting peripheral illumination intensity and adjusting the light amount accordingly, the system modifies its operational parameters to resolve the contradiction between visibility and light blindness prevention.
2Use of energy by moving object
If the daytime running light is turned on only during daytime, then energy consumption is reduced, but visibility performance deteriorates in bright locations
Solution Approach 1:
The system dynamically adjusts the light amount based on detected peripheral illumination conditions rather than using a fixed on/off or constant output mode. This allows optimal visibility performance across varying brightness conditions while maintaining energy efficiency.
Solution Approach 2:
The patent implements feedback control by using photo sensors and rain sensors to detect peripheral illumination conditions, then feeding this information back to the controller which adjusts the light amount accordingly. This closed-loop system ensures optimal visibility while managing energy consumption.
3Object-affected harmful factors
If the light amount of daytime running light is adjusted to be small, then light blindness is prevented, but recognition performance deteriorates at bright locations
Solution Approach 1:
The system dynamically adjusts light output based on real-time detection of peripheral illumination conditions. In bright locations, the controller increases light amount to maintain recognition performance, while in low illumination conditions, it reduces light amount to prevent light blindness.
Solution Approach 2:
The illumination parameter of the daytime running light is changed based on environmental conditions detected by sensors. The controller adjusts the light amount parameter dynamically to resolve the contradiction between preventing light blindness and maintaining recognition performance.
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 apparatus enhances safety by reducing light blindness in low illumination conditions and maintaining visibility in bright environments, while minimizing manufacturing costs and protecting the system from heat damage.
Implementation Method 1
The controller may receive information relating to the illumination intensity or the brightness at the periphery of the vehicle from a photo sensor
Implementation Method 2
a lamp disposed in a daytime running light for a vehicle, configured to receive information about a vehicle starting condition, and determine whether to turn on the daytime running light
Data Source
AI summary
A daytime running light apparatus for a vehicle may include a lamp disposed in a daytime running light for a vehicle, configured to receive information about a vehicle starting condition, and determine whether to turn on the daytime running light, and a controller coupled to the lamp to control an amount of light of the daytime running light in accordance with illumination intensity or brightness at a periphery of the vehicle, in which the controller may be adapted to increase the amount of light of the daytime running light in proportion to an increase in illumination intensity or brightness at the periphery of the vehicle.