V2X Lighting for Autonomous Vehicle Communication
41 patents in this list
Updated:
Modern traffic environments increasingly require vehicles to communicate their intentions and status beyond traditional turn signals and brake lights. Field measurements show that conventional lighting systems are visible for only 100-150 meters in optimal conditions, and their effectiveness drops significantly in adverse weather or when line of sight is blocked by larger vehicles—creating critical safety gaps in complex traffic scenarios.
The fundamental challenge lies in developing lighting systems that can simultaneously serve their primary safety function while enabling rich vehicle-to-everything (V2X) communication without creating driver confusion or information overload.
This page brings together solutions from recent research—including adaptive matrix lighting systems, integrated fog lamp displays, dynamic pedestrian-aware illumination patterns, and autonomous vehicle status indicators. These and other approaches focus on enhancing traffic safety through improved visual communication while maintaining compatibility with existing infrastructure and driver expectations.
1. Traffic Safety Lighting System with Sensor-Driven Gobo Projectors for Dynamic Road Image Projection
NO JI HYO, 2023
Smart lighting system for traffic safety that uses gobo projectors to display customized images on the road to enhance safety for drivers, pedestrians, and cyclists. The system collects traffic data from sensors, analyzes object characteristics, and projects tailored images based on the analysis. This allows warning signs, pedestrian silhouettes, collision alerts, etc to be projected onto the road. The goal is to provide dynamic, targeted guidance that adapts to specific road conditions and objects.
2. LED Module-Based Safety Signal Control System with Centralized Server Communication and Detachable Components
ENF CO LTD, 2023
Safety signal control system using LED modules that allows vehicles as well as pedestrians to move and drive safely through LED modules installed on roads or pedestrian paths. The system uses LED modules on roads and paths that can be controlled by a central server. The server sends driving information of vehicles to the modules which flash different colors. This allows both drivers and pedestrians to easily identify each other's presence. The modules also have connectors for power and detachable LED bars. The server can prioritize driving for specific vehicles entering intersections.
3. Traffic Signal Visibility Notification System with Obstruction Detection and Signal State Relay
NEC Corporation, 2023
Notifying vehicles behind blocked line-of-sight of traffic signal displays when their view is obstructed by a preceding vehicle. The system uses sensors to detect vehicles in the line of sight of a traffic signal. If a sensor sees a vehicle behind the detected vehicle that can't see the signal due to a preceding vehicle, it notifies the blocked vehicle about the signal state. This allows vehicles to be aware of signal changes even if they can't directly see the signals.
4. Integrated Vehicle Lighting System with Selective Activation for Dual Functional and Communication Signals
Ford Global Technologies, LLC, 2023
Integrated vehicle lighting that can simultaneously provide both functional lighting for vehicle operation and communication signals. The system has a single lamp assembly with multiple lights that can be selectively activated based on separate determinations for vehicle lighting needs and communication needs. This allows the vehicle to use the same lighting hardware for both purposes without needing separate dedicated lighting systems. The system can, for example, turn off some lights for functional lighting while activating others for communication signals or vice versa. This enables multimodal lighting functionality from a single lamp assembly.
5. V2X Communication System for Emergency Vehicle Detection and Traffic Signal Coordination
GUANGZHOU AUTOMOBILE GROUP CO, GUANGZHOU AUTOMOBILE GROUP CO LTD, 2023
A V2X-based emergency vehicle avoidance system that improves safety and efficiency of avoiding emergency vehicles. The system uses vehicle-to-everything (V2X) communication to quickly and accurately notify other vehicles and traffic lights about the location and speed of emergency vehicles. The emergency vehicle's data is sent to nearby roadside units which relay the information to other vehicles and traffic lights. This allows them to make advance avoidance actions instead of reacting late. The roadside units also adjust traffic lights to clear the way for emergency vehicles. If network signals are weak, the roadside units calculate emergency vehicle path to notify nearby vehicles.
6. Traffic Light Integration System with Removable Emergency Vehicle Control Units for Signal Modulation
Julious Basden, 2023
A system to improve visibility of emergency vehicles by integrating with traffic lights. The system has removable control units in emergency vehicles that can change the light settings of nearby traffic lights in response to activating the emergency vehicle lights. This provides enhanced notification to other drivers when an emergency vehicle approaches. The control units communicate a signal to the traffic lights to activate specific light patterns or intensities.
7. Vehicle Body-Integrated External Light System for Driving Status Communication
HYUNDAI MOBIS CO., LTD., 2023
Communicating a vehicle's driving status to pedestrians and surrounding vehicles using the vehicle body itself as a communication medium. The system detects if an object is approaching within a certain distance. When an object is nearby, it displays the vehicle's driving status, like braking or turning, through external lights on the vehicle body. This allows pedestrians and other drivers to see the vehicle's intended path and actions before they interact. It expands the communication range beyond just headlights and signals.
8. Intersection Traffic Flow System with Vehicle-Directed Signal Change Projection
Cullen Noah Martin, 2022
System to improve traffic flow at intersections by projecting light directly onto approaching vehicles to help them see traffic signal changes. It uses sensors to detect vehicles and traffic signals, and a projector to shine light towards the detected vehicles when the signals change. This aims to reduce blind spots, improve visibility for distracted drivers, and encourage closer stopping positions. The system can be installed on traffic signals or nearby structures.
9. Vehicle Lighting System with Dynamic Illumination Pattern Adjustment Based on Pedestrian Proximity
ALPHA EC INDUSTRIES 2018 S.A.R.L., 2022
A vehicle with a dynamic lighting system that changes the illumination pattern based on the position of nearby pedestrians and other road users. The system has two lighting configurations: a regular one using the full light surface and an offset configuration using a subset of the surface. When a pedestrian is detected in front of the vehicle, it switches to the offset configuration to illuminate a visible portion of the surface around the pedestrian instead of the whole area. This helps pedestrians see through masks or obstructions that could hide the regular lights.
10. Fog Lamp with Integrated Secondary Display Featuring Matrix Elements and Communication Interfaces
Myotek Industries, 2021
A vehicle fog lamp with a secondary display integrated into the lens that can communicate with pedestrians. The fog lamp has a main LED illumination component and a secondary display containing matrix elements. The secondary display can show variable depictions based on processor input. It can communicate with pedestrians directly through the fog lamp's turn signal processor or via external devices using Bluetooth or NFC. The secondary display can notify pedestrians of turns or provide additional information.
11. Wireless Traffic Signal Transmission System with Vehicle-Integrated Receiver for Non-Line-of-Sight Communication
SONG SHUHUA, 2021
A wireless system to transmit traffic light signals from a central control system to vehicles without relying on line-of-sight visibility. The traffic light control system has a wireless transmitter that sends the signal to a receiver in the vehicle's advanced driving assistance system (ADAS). The receiver decodes the signal and provides it to the ADAS for display. This allows vehicles to receive traffic light information even if physical obstructions block their view of the actual lights. The signals are synchronized and interpreted by the ADAS to provide real-time traffic guidance.
12. Vehicle Lighting System with Sequential LED Array and Object-Priority Control Mechanism
HYUNDAI MOTOR CO, HYUNDAI MOTOR CO LTD, KIA MOTORS CORP, 2021
Vehicle communication lighting system that uses sequential lighting to improve pedestrian safety and vehicle-pedestrian communication. The system has a lighting unit with multiple LEDs arranged in sequence, a sensor to detect objects near the vehicle, and a control unit. The control unit receives sensor data and sets object priorities. It selectively controls LED brightness based on object priority to indicate recognition. This enables vehicles to communicate with pedestrians using the sequential lighting. The system avoids discomfort from simultaneous brightness changes by only controlling lights for the highest priority object.
13. Communication-Based Automotive Lighting System with Integrated Traffic Signal Interaction and LED Control
CHANGXING COUNTY VOCATIONAL AND TECHNICAL EDUCATION CENTER SCHOOL, 2021
A communication-based automotive lighting system that uses onboard LEDs and a switch to intelligently change the vehicle's light signals based on traffic conditions. The system has a traffic light system with a microcontroller, LED driver, and switch. The vehicle system has a receiver, microcontroller, LED driver, and switch. The traffic light microcontroller sends signals to the vehicle's LEDs via the switch. The vehicle's microcontroller receives and processes the signals. This allows the vehicle's lights to change based on the traffic signals, reducing rear-end collisions by intelligently signaling other drivers.
14. Self-Driving Vehicle Communication System with Shape-Adaptive Ring-Shaped LED Headlight Displays
HONDA MOTOR CO., LTD., KOITO MANUFACTURING CO., LTD., 2021
Communication devices for self-driving cars to interact with pedestrians and other drivers. The device uses ring-shaped lights around the headlights that change shape to mimic eye contact when the car communicates. The lights have LEDs that can be selectively turned on to create different shapes. When the car is self-driving, the lights change based on the communication to indicate intentions. This provides clearer and more intuitive communication compared to just turning on all the lights. The lights can also be covered by a lens that darkens the non-lit areas to make the changing shapes more visible.
15. Vehicle Lighting Control System with Adaptive Display-Based Illumination and Folding Mechanism
Scania CV AB, 2021
Controlling vehicle lighting devices with displays to adapt and enhance visibility in different environments. The method involves collecting vehicle surroundings data and using it to customize the displayed lights. The displays can show conventional lights like headlights, brakes, turn signals, etc., but with optimized characteristics based on conditions. This improves safety by making lights more noticeable/distinguishable. The displays can also provide visual alerts for potential dangers. The displays can fold out to reduce drag when extended, like a boat tail, when the vehicle is platooning.
16. Traffic Signal Lamp with Integrated Lidar, Camera, and Satellite Communication System
GAO JIE, WU KENA, 2021
A smart traffic signal lamp that uses lidar scanners, cameras, and satellite communication to improve traffic flow and reduce congestion. The lamp has a communication module connected to a satellite navigation system. Lidar scanners and high-definition cameras are installed on the lamp cap. By connecting adjacent lamps, they can communicate traffic conditions. The lamps can autonomously adjust signal timings based on real-time congestion data. This reduces the need for manual traffic police and better manages traffic flow. The lamps also link with car navigation to proactively control traffic.
17. Vehicle-Road Lighting System with V2X Communication for Coordinated Lighting Control
PEUGEOT CITROEN AUTOMOBILES S A, PEUGEOT CITROEN AUTOMOBILES SA, 2021
A vehicle-road lighting system that uses V2X communication to improve lighting safety while preventing glare. The system involves vehicles communicating with smart roads. The roads receive vehicle info and generate lighting control and headlight suggestion based on driving conditions. The roads send lighting control to onboard modules and headlight suggestions to vehicles. The vehicles then adjust headlights accordingly. This allows coordinated, optimized lighting that prevents glare for oncoming vehicles and pedestrians. It also simplifies headlight design versus traditional adaptive systems.
18. Vehicle Optical Communication System with Light-Based Road Information Reception and Emission
BAONENG AUTOMOBILE RESEARCH INSTITUTE CO LTD, BAONENG GUANGZHOU AUTOMOBILE RES INST CO LTD, 2021
Vehicle communication system that allows vehicles to obtain road information using optical communication instead of onboard sensors. The system involves vehicles receiving visible light information from roadside lights and other vehicles' lights using a receiver. A processor identifies the light sources and obtains traffic condition info. The processor then controls the vehicle's own lights to emit specific visible light patterns based on the source and condition. This allows vehicles to communicate road info using stable external light sources instead of onboard sensors. The system can also receive modulated visible light information from roadside devices.
19. Vehicle Notification System with Dynamic Light Characteristics Based on Sensor-Derived Parameters
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION, 2021
Enhanced vehicle notification system that provides information to a vehicle operator using a notification light. The system determines parameters like vehicle speed, direction, and distance to an approaching vehicle and then changes the light characteristics to communicate that information to the other vehicle visually. This allows quicker reaction time and avoidance compared to just seeing the vehicle's presence. The light changes can convey details like braking, reversing, or stopping ahead. To determine the parameters, the system uses onboard sensors and/or inputs like GPS, magnetometers, and off-board signals.
20. Intelligent Road Lighting Control System with Big Data-Driven Vehicle Detection and Adaptive Lighting Adjustment
KONG SHUANSHUAN, 2021
Big data-based intelligent road lighting control system that uses lighting infrastructure to provide warnings for dangerous vehicles and optimize lighting based on conditions. The system has intelligent lighting lamps, monitoring devices, and a management system. It uses big data analysis to detect dangerous vehicles like speeders and retrograde drivers. When a dangerous vehicle is detected, the lighting lamps in its vicinity flash at a frequency corresponding to the danger level. The monitoring devices also send alerts to the management system. The management system calculates optimal lighting conditions based on factors like traffic volume, weather, and vehicle behavior. It then adjusts the lighting levels accordingly.
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These cutting edge technologies have the ability to increase efficiency, safety, and coordination on the roads through real-time data interchange. A major advancement in automobile technology is the lighting systems for Vehicle-to-Car (V2X) communication.