A STUDY ON THE OPTIMAL POSITIONING OF AVAS BASED ON A VEHICLE FRONT/REAR INTEGRATED MODEL: COMPLIANCE WITH NEW REGULATIONS AND MINIMIZATION OF INTERIOR NOISE IN A CABIN

HoSeok Nam; JongSuh Park; DaMi Bok

Paper Title

Authors

HoSeok Nam
JongSuh Park
DaMi Bok

Modality

Onsite-Oral

Subject area

03.0. Modeling & Simulation Techniques: General

Publishing Date

18/08/2025

Country of Publishing

Brazil | Brasil

Language of Publishing

Inglês

Paper Page

https://www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1076457-a-study-on-the-optimal-positioning-of-avas-based-on-a-vehicle-frontrear-integrated-model--compliance-with-new-r

ISBN

978-65-272-1573-8

Keywords

AVAS, Regulation, Interior noise, Simulation, Optimization

Summary

Recent regulations regarding pedestrian safety related to AVAS (Acoustic Vehicle Alert System) sound are being strengthened due to the increasing adoption of eco-friendly vehicles such as electric and hybrid vehicles. Additionally, the intrusion of AVAS sound into the vehicle cabin must be minimized, as this is a crucial factor in terms of vehicle marketability. Therefore, optimizing the position of AVAS speakers by considering both regulations and interior noise is crucial in the preliminary stages of vehicle design. The purpose of this study is to determine the optimal position of AVAS speakers by considering both regulatory requirements and the minimization of interior noise. Firstly, a vehicle front/rear integrated simulation model is proposed, and the validity of this model is verified through comparison with test. Secondly, priority positions are selected from a regulatory perspective using the acoustic transfer function. Additionally, priority positions are selected from the perspective of interior noise. Thirdly, common priority positions from both regulatory and interior noise criteria are selected, and the final position is determined by applying speaker gain adjustments. This study demonstrated a difference of more than 5 dB(OA) in interior noise levels depending on the AVAS speaker positions, emphasizing the importance of selecting the optimal position through this study.

Title of the Event: Inter-Noise 2025
City of the Event: São Paulo
Title of the Proceedings of the event: Proceedings of the 54th International Congress and Exposition on Noise Control Engineering
Name of the Publisher: Even3
Means of Dissemination: Meio Digital

How to cite

NAM, HoSeok; PARK, JongSuh; BOK, DaMi. A STUDY ON THE OPTIMAL POSITIONING OF AVAS BASED ON A VEHICLE FRONT/REAR INTEGRATED MODEL: COMPLIANCE WITH NEW REGULATIONS AND MINIMIZATION OF INTERIOR NOISE IN A CABIN.. In: Proceedings of the 54th International Congress and Exposition on Noise Control Engineering. Anais...Sao Paulo(SP) WTC Events Center, 2025. Available in: https//www.even3.com.br/anais/international-congress-exposition-noise-control-engineering/1076457-A-STUDY-ON-THE-OPTIMAL-POSITIONING-OF-AVAS-BASED-ON-A-VEHICLE-FRONTREAR-INTEGRATED-MODEL--COMPLIANCE-WITH-NEW-R. Access in: 05/09/2025