Vehicle Light Control Circuit Intensity Coordination
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Solution Overview
Problem
Existing vehicle lighting systems using multiple lights to indicate braking and turning operations can be confusing, as different light sources (incandescent and LED bulbs) illuminate at different intensities, making it unclear whether the vehicle is braking, turning, or both.
Innovation Solution
A control circuit and method that illuminate the run/brake light and turn lights in coordinated patterns and intensities to clearly indicate vehicle operations, adjusting intensities to provide a uniform visual appearance and distinguish between braking and turning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple different light sources (incandescent and LED bulbs) are used in the vehicle lighting system, then the functionality and visibility are improved, but the lights illuminate at different intensities causing confusion about vehicle operations
Solution Approach 1:
The controller adjusts the intensity parameter of each light source individually to compensate for inherent differences between incandescent and LED bulbs. By dynamically modifying the illumination intensity of each light, the system achieves uniform visual appearance across all lights during combined braking and turning operations, thereby eliminating confusion about vehicle operations.
2Device complexity
If the three lights are controlled in a common manner, then the control system is simple, but different types of light sources will illuminate at different intensities causing visual confusion
Solution Approach 1:
The controller applies different control strategies to different light sources based on their individual characteristics. Each light (incandescent or LED) receives customized intensity adjustment parameters, allowing the system to maintain visual uniformity without requiring complete redesign of the control architecture. This localized adjustment approach balances system simplicity with visual clarity.
3Loss of information
If the lights display different patterns simultaneously, then the specific vehicle operations are clearly indicated, but the viewer may be uncertain whether the vehicle is braking, turning, both, or neither
Solution Approach 1:
The controller merges the indication functions of multiple lights into a coordinated display pattern. During combined braking and turning operations, the lights work together as a unified visual signal system rather than independent indicators. This coordinated merging of light functions provides clear, unambiguous information that is easy for viewers to interpret, eliminating uncertainty about vehicle operations.
Data Source
AI summary
A control circuit for operating the lights of a vehicle. In one embodiment, the rear lights of the vehicle are controlled by the control circuit. The control circuit illuminates two or more of the vehicle lights in a common pattern to indicate a specific vehicle operation. When the vehicle simultaneously performs two operations, the controller may transition the lights to illuminate in different patterns to clearly indicate the separate vehicle operations. The controller may further provide for adjusting the light intensity of one or more of the lights. The lights may be adjusted to have a similar intensity to prevent confusion when the different lights are used in combination to indicate a vehicle operation.