Controller, system, and method for generating a dazzle-free highbeam of a vehicle

The control device and system dynamically adjust headlight shadow areas based on vehicle positioning to minimize glare and maintain high performance, addressing the challenge of system tolerances and latencies in existing headlight systems.

WO2025002655A1PCT designated stage expired Publication Date: 2025-01-02STELLANTIS AUTO SAS
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Patent Information

Application Number
PCT/EP2024/063280
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-06-27
Filing Date
2024-05-14
Publication Date
2025-01-02

AI Technical Summary

Technical Problem

Existing vehicle headlight systems face challenges in generating a glare-free high beam due to system tolerances and latencies, leading to unnecessarily large shadow areas that impair headlight performance.

Method used

A control device and system that utilize a processor, storage unit, and sensor system, including cameras, to determine the positioning and orientation of detected vehicles, calculate the required shadow area width and offset to minimize glare, and adjust the headlight system to create adaptive shadow areas, ensuring reliable glare control and high headlight performance.

Benefits of technology

The system effectively reduces glare on detected vehicles by dynamically adjusting shadow areas to the minimum required size, avoiding side glare and maintaining high headlight performance without the need for excessively large shadow areas.

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Abstract

The invention relates to a controller (3) for generating a dazzle-free highbeam by means of a headlight system (4) of a vehicle (50). The controller (3) comprises a processor (10), a storage unit (20) for storing data and machine-readable instructions for the processor (10), and an interface (30). The interface (30) is designed to receive sensor data from a sensor unit (2) in order to detect another vehicle (60) which is at risk of dazzling by means of the headlight system (4) and to output control signals in order to actuate the headlight system (4). The storage unit (20) contains instructions for the processor (10) to analyze the sensor data received from the sensor unit (2) in order to ascertain the current position of the detected vehicle (60) and to ascertain the base width of a shadow region, which is required to prevent a direct dazzling of the detected vehicle (60), in a headlight light field on the basis of the current position of the detected vehicle and to ascertain at least one offset in order to expand the shadow region in order to prevent a lateral dazzling of the detected vehicle (60) and to actuate the headlight system (4) such that a shadow region is produced in the headlight highbeam field in order to prevent a dazzling of the detected vehicle (60), the width of the shadow region corresponding substantially to the base width increased by the at least one offset.
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Citation Information

Patent Citations

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