ACOUSTICAL VEHICLE ALERTING SYSTEM (AVAS)

This specific device made by Seger can simulate any sound based on the application or upon customer request. Typically applied in electric and hybrid vehicles which would otherwise be hard to audibly detect, the AVAS system allows a manufacturer to choose the desired audio file and that sound will be emitted from the AVAS system, providing safety for people and other vehicles. It is also now an industry standard and mandated as noted in ECE-R138 of the United Nations. The two main types are Active AVAS which has its own control unit and Passive AVAS which connects to a vehicle's existing ECU.