Quiet Vehicle Sounder

Quiet Vehicle Sounder – Acoustic Vehicle Alerting System (AVAS)

Known as an acoustic vehicle alerting system across the automotive market, the Quiet Vehicle Sounder warns vulnerable road users of an approaching electric/hybrid vehicle.

Without an acoustic vehicle alerting system, electric and hybrid vehicles are almost silent; they are only audible once they have built up some speed (approximately 20kph) when wind and road noise generate enough sound that they can be heard. Studies have concluded that electric and hybrid vehicles pose a danger to vulnerable road users (VRU) and increase the risk of incidents with pedestrians by up to 80%. Sound is an important contributor to road safety for pedestrians, not only for the blind or visually impaired.

  • Warns pedestrians and other VRU’s that a quiet vehicle is approaching
  • Tektron patented technology – Multi-frequency sound – Directional and locatable – The sound is only heard in the hazard zone
  • Front speaker with optional rear speaker
  • Pitch and volume automatically increases with vehicle speed to mimic an internal combustion engine
  • Sound cuts out at 20mph

Legislation affecting quiet vehicles and acoustic vehicle alerting system

Both the US and the EU are introducing standards to ensure minimum sound requirements for electric and hybrid vehicles to protect VRUs. An Acoustic Vehicle Alerting System will need to be fitted to make electric or hybrid vehicles “sound similar” to vehicles with combustion engines when travelling at low speed.

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