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Quiet Vehicle Sounder

Brigade Electronics

Electric Vehicle Warning System

Warns pedestrians and other vulnerable road users that a quiet vehicle is approaching.

  • Instantly locate where and what direction the sound is coming from
  • Pitch and volume automatically increases with vehicle speed to mimic an internal combustion engine
  • Front speaker with optional rear speaker
  • Sound cuts out at 20mph (32kmh)

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

The Quiet Vehicle Sounder is designed to emit a blend of Brigade’s bbs-tek® White Sound® frequencies and tonal sounds. This mix of frequencies ensures the QVS is only ever heard in the danger zone, is instantly detectable and locatable.

Studies conclude slow moving electric and hybrid vehicles increase the risk of incidents with pedestrians by up to 80%.

Government Legislation in Effect 

NHTSA 49 CFR Part 571 and 585 – Effective September 2020, all hybrid and electric vehicles in USA will need an acoustic vehicle alerting system to emit sound when travelling at low speeds.

Canada Gazette, Part I, Volume 155, Number 17: Regulations Amending the Motor Vehicle Safety Regulations (Minimum Sound Requirements for Hybrid and Electric Vehicles) currently in it's final reading.

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