A computer system and a method for handling a lighting system, and a lighting system of a vehicle

SE548401C2Active Publication Date: 2026-07-02VOLVO TRUCK CORP
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Patent Information

Authority / Receiving Office
SE · SE
Patent Type
Patents
Current Assignee / Owner
VOLVO TRUCK CORP
Filing Date
2024-10-31
Publication Date
2026-07-02

AI Technical Summary

Technical Problem

Existing vehicle lighting systems, particularly in autonomous vehicles, struggle to maintain fail-operational status under safety integrity level D (ASIL-D) requirements due to potential failures in electrical/electronic subsystems, leading to reduced availability and compliance issues.

Method used

Implementing a lighting system with at least two redundant component groups, each powered by a separate power source, and utilizing processing circuitry to obtain diagnosis data and reconfigure the system to utilize non-faulty components, ensuring adherence to safety standards.

Benefits of technology

Enhances the vehicle's ability to remain fail-operational and compliant with ASIL-D standards by compensating for faulty components with non-faulty ones, thereby increasing system robustness and availability.

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Abstract

A computer system (700) comprising processing circuitry (702) configured to handle a lighting system (1) of a vehicle (2) is provided. The lighting system comprises at least two redundant component groups (4) each comprising a respective plurality of light sources (5) and each being powered by a respective separate power source (6). The processing circuitry is further configured to: obtain diagnosis data of the lighting system, which diagnosis data is indicative of a status of the at least two redundant component groups in comparison with a predeterminable safety model; and in response to the diagnosis data indicating a fault or risk of fault associated with at least a first (41) of the at least two redundant component groups, reconfigure the lighting system to utilize at least a first (42, 43) of the at least two redundant component groups not associated with said fault or risk of fault.
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Citation Information

Patent Citations

  • Lighting circuit for automotive lamp

    US20220030684A1

  • Exterior vehicle lights

    US8749142B2

  • Lighting system of a vehicle, and method for controlling such a system

    WO2024149509A1

  • LED lighting circuit with redundancy

    WO2024194202A1