Study on the sound design of a sporty vehicle 2024-01-2964
From an NVH perspective, electric vehicles represent a great opportunity since the noise of the combustion engine, dominant in many driving conditions, is no longer present. On the other hand, drivers accustomed to driving cars with a strong personality (for example typically sporty ones) may perceive "silence" as a lack of character. Our internal study, conducted with a jury of people, has in fact already shown that for half of customers silence should characterize BEV vehicles; but, at the same time, the other half of the jury expects feedback from the vehicle while driving. The silence inside the passenger compartment, from an NVH point of view, can therefore be compared to a blank sheet of paper, on which, if desired, sounds designed to satisfy the driving pleasure expected by the customer can be introduced.
Starting from this scenario, the paper describes:
- the approach adopted to define how many and what are the levers to design a good sound for our customers driving a sporty vehicle
- the engineering guidelines to achieve the desired sound
The process followed is a structured flow based on:
- several focus groups, with experts from different company departments, to define the main dimensions of the sound that can characterize a BEV sporty vehicle for our customers
- subjective evaluations, expressed according to aspects coming from the focus groups, based on acoustic traces recorded on different BEV vehicles with sound enhancement
- analysis of objective data and comparison with the main results of the analysis of subjective data
As a conclusion and main result, engineering guidelines and directions will be presented to create a good sound for a BEV sport vehicle.
Author(s):
Lucia Celiberti, Laura Borgarello, Vanni Falasca, Francesco Lolli, Alessandra Meriga, Piercarlo Miglietta, Mirella Soldati
Affiliated:
Stellantis Europe SpA, Maserati SpA
Event:
13th International Styrian Noise, Vibration & Harshness Congress: The European Automotive Noise Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Electric vehicles
Passenger compartments
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