Vehicle Headlamp Control System Using GPS for Regulatory Compliance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vehicle lighting systems, particularly headlamps, face challenges in meeting varying regulatory requirements across different jurisdictions, such as RHD and LHD countries, requiring manual driver intervention and increasing manufacturing complexity, as existing solutions like Tourist Mode switches are prone to errors and additional costs.
Innovation Solution
A headlamp fixture with semiconductor light sources and a control system using a GPS receiver to automatically adjust illumination patterns, including high beam, low beam, and side illumination, by alternately illuminating inclined light source elements to comply with regional regulations, ensuring compliance without driver intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a Tourist Mode switch is provided to manually adjust lighting patterns for different jurisdictions, then the system can adapt to different regulatory requirements, but the device complexity increases and manual operation is required which may lead to errors
Solution Approach 1:
The lighting system automatically detects the vehicle's location using GPS coordinates and self-adjusts the lighting pattern without driver intervention. The control system compares current location with stored geographic boundary data for different jurisdictions and autonomously selects the appropriate lighting configuration, eliminating the need for manual Tourist Mode switching.
Solution Approach 2:
The system continuously receives feedback from the GPS receiver about the vehicle's current location and uses this information to dynamically adjust the lighting pattern. The control system monitors location changes and automatically transitions between different lighting configurations when crossing jurisdictional boundaries, ensuring continuous compliance without manual input.
2Adaptability or versatility
If a Tourist Mode switch is provided to manually adjust lighting patterns, then the system can adapt to different jurisdictions, but reliability decreases due to potential human error in activation
Solution Approach 1:
The system automatically detects the vehicle's location using GPS coordinates and self-adjusts the lighting pattern without driver intervention. The control system compares current location with stored geographic boundary data for different jurisdictions and autonomously selects the appropriate lighting configuration, eliminating the need for manual Tourist Mode switching.
Solution Approach 2:
The system continuously receives feedback from the GPS receiver about the vehicle's current location and uses this information to dynamically adjust the lighting pattern. The control system monitors location changes and automatically transitions between different lighting configurations when crossing jurisdictional boundaries, ensuring continuous compliance without manual input.
3Device complexity
If manual Tourist Mode switching is required, then the system structure remains simpler, but loss of time occurs due to driver intervention and potential delays in activation
Solution Approach 1:
The system automatically detects the vehicle's location using GPS coordinates and self-adjusts the lighting pattern without driver intervention. The control system compares current location with stored geographic boundary data for different jurisdictions and autonomously selects the appropriate lighting configuration, eliminating the need for manual Tourist Mode switching.
Solution Approach 2:
The system performs preliminary actions by continuously monitoring GPS location and pre-loading the appropriate lighting configuration based on current position. When the vehicle approaches a jurisdictional boundary, the system has already prepared the correct lighting pattern and can immediately activate it upon crossing the boundary, eliminating any delay in adaptation.
4Adaptability or versatility
If multiple light source elements with different orientations are used to create side illumination patterns for different jurisdictions, then adaptability to different regulatory requirements is improved, but manufacturing precision requirements increase
Solution Approach 1:
The lighting system is segmented into multiple independent light source elements, each with its own pattern optic. This allows selective activation of specific elements (e.g., left-side or right-side elements) depending on the detected jurisdiction, enabling the system to meet different regulatory requirements for RHD and LHD countries without requiring complex adjustable mechanisms.
Solution Approach 2:
The system dynamically selects which light source elements to activate based on real-time GPS location data. The control system can switch between different combinations of light source elements to create the appropriate side illumination pattern for the current jurisdiction, providing adaptability through software control rather than mechanical adjustment.
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 automatically configures lighting patterns to meet regulatory requirements, reducing errors and manufacturing complexity by using GPS data to adjust headlamp operations, ensuring compliance with different country-specific regulations, including side illumination patterns, thereby enhancing safety and reducing operational and manufacturing costs.
Implementation Method 1
a plurality of light source elements, each including a semiconductor light source
Implementation Method 2
light from the semiconductor light source being conveyed to the pattern optic via a light pipe
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A headlamp fixture (24) and a control system (32) for controlling a vehicular lighting system (20) to produce particular lighting patterns required under different regulatory regimes is disclosed. The headlamps (24) employ semiconductor light sources (116) to create the desired patterns and can include at least two inclined light source elements (108,112) which are alternately illuminated to produce required side illumination or can include single light source elements (204) which can be rotated clockwise and counterclockwise to produce the required side illumination. The lighting system (20) can employ an output from a GPS receiver (36) to determine the country or region in which the vehicle is being driven to automatically configure the operation of lighting system components, such as the side illumination of the headlamps and/or the activation and deactivation of daytime running lights, to meet the regulatory requirements of the country or region.