Assessment and Auralization of Cabin Noise from AVAS Operation in an Electric Vehicle Using a Hybrid BEMSEA Methodology Mecas ESI, SRO

Format:

Book

Conference/Event

Author/Creator:

Fiedler, Robert, author.

Contributor:

Calloni, Massimiliano

Martin, Simon

Conference Name:

Symposium on International Automotive Technology (2026) (2026-01-28 : Pune, India)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2026

Summary:

In electric and hybrid vehicles, sound package optimization can follow a classical, proven, and structured approach for real-world loads, while also considering new transmission paths that might differ from those in traditional internal combustion engine vehicles. However, AVAS-induced interior noise is sometimes underestimated and therefore not taken into account during the optimization process. Nevertheless, especially at very low speeds, the presence of the AVAS can be perceived as unwanted noise inside the vehicle, potentially compromising interior comfort. In this study, a hybrid boundary elementstatistical energy analysis (BEM SEA) approach is applied to an SEA dual-motor electric vehicle demonstrator model equipped with a baseline, standard sound package to assess AVAS-induced interior noise. A standard AVAS actuator is modeled with a BEM model to compute the sound pressure levels on the exterior subsystems of the vehicle. These results are then transferred to the SEA model to calculate interior noise and evaluate the AVAS audibility inside the cabin. This approach has the advantage of overcoming the limitations of SEA in simulating exterior paths, which would otherwise require creating exterior cavities, overriding certain properties of connected cavities, and modifying coupling loss factors to emulate diffraction. In addition, simple auralization of the interior noise due to AVAS is presented for different sound package configurations

Notes:

Vendor supplied data

Publisher Number:

2026-26-0357

Access Restriction:

Restricted for use by site license