Optimization of Electric Vehicle Exterior Noise
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Acoustic Vehicle Alert Systems (AVAS) will be integrated into silent electrified vehicles to increase detectability and pedestrian safety. FEV uses its interior and exterior noise simulation software to assist the integration of AVAS into the vehicle.
AVAS to Increase Pedestrian Safety
Without the noise of a running combustion engine, electrically driven vehicles are very quiet, sometimes even too silent to be noticed by pedestrians. Especially at speeds below 30 km/h, the difference in exterior noise between electrically driven and Internal Combustion Engine (ICE) vehicles is significant. At this speed range, the main noise share of conventional ICE vehicles is the powertrain and its inlet and exhaust noise, which is not present in electrically driven vehicles. Above this speed, exterior noise from electric vehicles becomes closer to ICE vehicles, due to the increasing tire, road and wind noise.
To ensure detectability and pedestrian safety, authorities have mandated the introduction...
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