Method for adaptive control of rolling noise perceived in a motor vehicle passenger compartment

FR3158364A1Active Publication Date: 2025-07-18AMPERE SAS
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Patent Information

Application Number
FR2024000464
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-17
Publication Date
2025-07-18
Estimated Expiration
2044-01-17

AI Technical Summary

Technical Problem

Existing active road noise control systems in vehicles experience significant variations in noise reduction effectiveness due to varying road surfaces, affecting user comfort and perception, particularly in electric vehicles where rolling noise dominates the interior acoustics.

Method used

A method for adaptive control of rolling noise that involves determining road roughness levels using sensors and emitting a sound correction signal to maintain a predefined sound pressure difference threshold, ensuring consistent noise reduction across different road surfaces.

Benefits of technology

The method optimizes user comfort by minimizing variations in perceived rolling noise, maintaining acoustic pressure within acceptable limits, and enhancing the effectiveness of noise control systems.

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Abstract

Title: Method for adaptive control of rolling noise perceived in a motor vehicle passenger compartment Method for adaptive control of rolling noise perceived in a motor vehicle passenger compartment in a driving situation comprising the determination of a sound correction to be applied in the vehicle limited so that a difference between a sound correction correction sound pressure and a predefined reference sound pressure is less than or equal to a sound pressure difference limit threshold. Abstract figure: No figure
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Citation Information

Patent Citations

  • Active noise reduction method, system, medium and equipment for road noise

    CN116312450A

  • Method and apparatus for continuously optimized road noise cancellation

    EP3534361A1

  • Assembly and method for active control of rolling noise for a motor vehicle

    FR3115148A1

  • On-vehicle noise controller

    JP2003344083A

  • Active noise control device

    JP2008062804A