Emergency Lightbar Channels for Vehicle Identification Lighting

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Emergency vehicle lighting systems are limited to primary emergency signaling and cannot effectively distinguish vehicles in emergency situations, especially in low visibility conditions, leading to confusion and difficulty in identifying coordinating vehicles.

Innovation Solution

A light channel system that uses total internal reflection to transmit light from a light source to desired output locations, including peripheral and accent lighting, with a controller to manage light output and synchronization across multiple vehicles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If traditional emergency vehicle lightbars are used with series of LED lights and reflectors, then bright visual signals are generated to alert people of emergency conditions, but the lights cannot be used for any other function and create confusion when multiple vehicles are present

Engineering Contradiction:

Improvebrightness of emergency signalsVSAvoidfunctional flexibility of lighting system

Core Design Contradiction:

Illumination intensityVSAdaptability or versatility

Solution Approach 1:

The lighting system is divided into separate functional modules: emergency signaling LEDs and peripheral accent lighting elements. The peripheral lighting includes multiple independently controllable LED groups that can provide cruise lighting, scene lighting, and vehicle identification functions separately from the emergency signaling function, allowing the system to perform multiple functions without interference

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The lighting system uses a controller to dynamically switch between different lighting modes and patterns. The peripheral accent lighting can be independently activated or deactivated relative to emergency signaling, and can provide different lighting patterns (cruise, scene, identification) based on operational requirements, making the system adaptable to various situations

Inventive Principle:

Principle #15Dynamics

2Reliability

If emergency vehicle lightbars are activated during emergency operations, then warning signals are provided, but it becomes difficult to determine which vehicle is coordinating the emergency response

Engineering Contradiction:

Improveemergency warning functionVSAvoidvehicle identification information

Core Design Contradiction:

ReliabilityVSLoss of information

Solution Approach 1:

Different portions of the lighting system are assigned different functions: the central lightbar provides emergency warning signals while peripheral accent lighting elements provide vehicle identification and coordination information. The peripheral lighting can display different patterns, colors, or sequences to identify the coordinating vehicle versus supporting vehicles

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The controller acts as an intermediary that coordinates between emergency signaling requirements and vehicle identification needs. It manages the timing and patterns of peripheral accent lighting to provide coordination information without interfering with the primary emergency warning function of the lightbar

Inventive Principle:

Principle #24Intermediary (Mediator)

3Illumination intensity

If additional lighting devices are added to emergency vehicles for peripheral and accent lighting, then visibility and coordination are improved, but the overall system complexity increases

Engineering Contradiction:

Improvevehicle visibilityVSAvoidlighting system configuration

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

The peripheral accent lighting elements are integrated into the existing lightbar housing structure rather than being separate add-on components. The lighting system uses a common power source and controller for both emergency signaling and peripheral lighting functions, reducing the need for separate mounting structures, wiring harnesses, and control systems

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The lighting system is designed so that the same controller and power distribution system serve multiple functions: emergency signaling, peripheral accent lighting, vehicle identification, and coordination communication. This multi-functionality reduces the number of separate systems needed and simplifies overall system complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

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

Enhances vehicle visibility and coordination in emergency scenarios by providing selective and coordinated lighting patterns, reducing confusion and improving safety.

Implementation Method 1

The light channel component may transmit the light using total internal reflection

Methodology Applied

Scientific EffectTotal internal reflection: Total Internal Reflection

Data Source

PatentUS20260036277A1Vehicle Lighting System Using Light Channels

Publication Date: 2026.02.05 WHELEN ENGINEERING COMPANY

AI summary

A lightbar with additional periphery lights for further functionality. The periphery lights can be operated through LEDs positioned behind the primary emergency lights of the lightbar. The LEDs can transmit light through a light transmissive material to the periphery. These periphery lights can be operated independently of the primary emergency lights to provide identification during non-emergency situations or additional information for coordinating emergency response.