AVAS acoustic vehicle alerting system

Quiet Vehicle Sounder (QVS)
Brigade Quiet Vehicle Sounder (QVS) is an AVAS acoustic vehicle alerting system for electric and hybrid vehicles, designed to warn pedestrians and other vulnerable road users at low speeds. Using patented bbs-tek White Sound technology, QVS creates a directional, locatable warning sound in the hazard zone.
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AVAS acoustic vehicle alerting system for quiet electric and hybrid vehicles

Electric and hybrid vehicles can be difficult to hear at low speeds, particularly in busy urban areas, depots, campuses and shared spaces. Brigade’s Quiet Vehicle Sounder (QVS) helps warn pedestrians, cyclists and other vulnerable road users that a quiet vehicle is approaching.

Designed as an AVAS, or acoustic vehicle alerting system, QVS uses Brigade’s patented bbs-tek White Sound technology with tonal sounds to create a directional, locatable warning sound. The system supports driver awareness around vulnerable road users while helping fleets meet the practical challenges of quieter vehicle operation.

Directional sound where it is needed:
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Warns pedestrians and other vulnerable road users that a quiet vehicle is approaching
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Combines multi-frequency bbs-tek® technology with tonal sounds
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Directional and locatable sound, heard in the hazard zone
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Front speaker system for forward vehicle movement
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Pitch and volume increase with vehicle speed

Brigade Quiet Vehicle Sounder (QVS)

Brigade Quiet Vehicle Sounder (QVS) and ECU

AVAS acoustic vehicle alerting system

Models

  • QVS-001-75
    Part Number: 5385

Product Resources

Product Resources

Specification Overview

  • 12-24Vdc
  • Pitch and volume increase with vehicle speed
  • Operational below speeds of 20mph
  • Speaker Size (WxHxD): 120 x 135 x 120mm
  • ECU Size (WxHxD): 93 x 26 x 185mm
  • Speaker durability: IP68
  • ECU durability: IP30
  • 2-year warranty
Features
  • Warns pedestrians and other VRU’s that a quiet vehicle is approaching
  • Combined multi-frequency bbs-tek® technology and tonal sounds
    – Multi-frequency sound
    – Directional and locatable – The sound is only heard in the hazard zone.
  • Front speaker system
  • Pitch and volume increase with vehicle speed to mimic an internal combustion engine
  • Operational below speeds of 20mph
  • Front sounder operational when ignition activated (silenced when parking brake applied)
  • Uses Tachograph speed signal**
  • Sounder unit: Speaker
Contents
  • 1 x Speaker: QVS-SPK-01 – Part number: 5389
  • 1 x ECU: QVS-000-ECU – Part Number: 5387
Power
  • Current: Max 0.1 Amps
Durability & Standards
  • Mechanical vibration: 10G
  • Operating temperature:
    -3 0 to +70°C
  • CE marked
  • E-Marked: UNECE R10 compliant
  • FCC approved
  • IC Marked
  • UNECE R138 compliant*
  • 49 CFR Part 571 and 585 Federal Motor Vehicle Safety Standards compliant**
    * QVS helps achieve compliance for the vehicle.
    ** If your vehicle is not equipped with a Tachograph, please contact us for alternative installation methods

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The Benefits of using

Acoustic Vehicle Alerting System (AVAS)

Warns pedestrians

Warns pedestrians and other VRU’s that a quiet vehicle is approaching

Patented technology

bbs-tek® patented technology – Multi-frequency sound – Directional and locatable – The sound is only heard in the hazard zone

Automatic volume

Pitch and volume automatically increases with vehicle speed to mimic an internal combustion engine

Cut Out

Sound cuts out at 20mph

Product Resources

Quiet Vehicle Sounder (QVS)

Product Data

Model

Part Number

Product Data
QVS-001-75 5385 View data
Product Data

QVS-001-75 (5385)

Manuals

Intstallation Guide

Brigade Quiet Vehicle Sounder (QVS) and ECU

The Problem With Silence

Without an Acoustic Vehicle Alerting System (AVAS), 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.

Brigade’s Quiet Vehicle Sounder creates a “sssshhhhh” sound which is gentle on the ear and dissipates quickly once the vehicle has passed, meaning it can only be heard in the danger zone (0-20mph). People living and working in the surrounding areas will not be impacted by unnecessary sound, reducing the impact on peoples health.

Legislation affecting quiet vehicles

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 (AVAS) will need to be fitted to make electric or hybrid vehicles “sound similar” to vehicles with combustion engines when travelling at low speed.

 

UNECE R138
NHTSA 49 CFR Part 571 and 585
From July 2019, all new hybrid and electric vehicles to be sold in Europe will need an acoustic vehicle alerting system to emit sound when travelling at low speeds. From September 2020, all hybrid and electric vehicles in USA will need an acoustic vehicle alerting system to emit sound when travelling at low speeds.

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