Quiet Vehicle Sounder (AVAS)
Warn vulnerable road users of an approaching electric/hybrid vehicle.
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Acoustic Vehicle Alerting System (AVAS)
The Quiet Vehicle Sounder warns vulnerable road users of an approaching electric/hybrid vehicle.
Since 2010, Brigade has been involved in the QRTV (Quiet Road Transport Vehicles) working group to establish requirements for a UN standard.
Brigade has developed a multi-frequency Quiet Vehicle Sounder, integrating the patented bbs-tek® technology. bbs-tek® uses a wide range of White Sound® frequencies. This enables anyone in the direct path of the vehicle to instantly locate where and what direction the sound is coming from and take evasive action if required. There is no safer alternative.
Quiet Vehicle Sounder (AVAS)
IP68
QVS Quiet Vehicle Sounder (AVAS)
Model |
Part Number |
| QVS-001-75: Acoustic Vehicle Alerting System (AVAS) | 5385 |
- 12-24Vdc
- IP68 Speaker
- IP30 ECU
- Speaker Size (WxHxD): 120 x 135 x 120mm
- ECU Size (WxHxD): 93 x 26 x 185mm
- 2 year warranty

Contents
- 1 x Speaker
- 1 x ECU
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
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

The Benefits of using
Acoustic Vehicle Alerting System (AVAS)
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.
Award Winning Solution

Living Environment Award
Sound, Vibration and Air Quality conference, Hoevelaken, Netherlands
Brigade Electronics won a Living Environment Award at the 22nd edition of the Sound, Vibration and Air Quality conference in Hoevelaken, Netherlands. Brigade’s Quiet Vehicle Sounder (QVS), won the award in the product innovations category presented by former Minister of Housing, Spatial Planning and the Environment, Jacqueline Cramer.

Innovation Award 2018
CLEPA Awards 2018
Brigade Electronics has won a CLEPA Innovation Award in the SME Safety Category for its Quiet Vehicle Sounder (QVS) Acoustic Vehicle Alerting System. Organised by CLEPA -The European Association of Automotive Suppliers – the awards celebrate outstanding achievements in the automotive supply industry by recognising innovation in the fields of environment, safety, connectivity, automation and cooperation.
“At Brigade it’s our mission to improve road safety, so we are absolutely thrilled to receive this award and be recognised for the important work we do in helping to prevent collisions and save lives” Philip Hanson-Abbott, Managing Director, Brigade Electronics

Noise Abatement Society
John Connell Innovation Awards 2017
Brigade Electronics won the John Connell Innovation award thanks to the Quiet Vehicle Sounders use of broadband sound. Brigade patented bbs-tek® broadband sound is easier for pedestrians to locate than pure tone sounds, producing a non invasive sound that quickly dissipates.
Gloria Elliott, Noise Abatement Society Chief Executive, said: “NAS congratulates Brigade on its ground breaking electric car sounder innovation which will help protect pedestrians as well as the aural environment.”
Case Studies
Hydrogen Bus Business gets Helping Hand from Brigade Electronics Poland
Discover the Future of Clean Urban Transit: Learn How Brigade Electronics Poland Enhances Safety and Efficiency for Hydrogen Buses like NesoBus. Unveil the Innovative Technology and Safety Solutions Transforming City Transport.
FM Conway Endorse QVS
Few companies across construction have taken to addressing environmental conservation like Conway have.A recent £7 million investment in their fleet has shown the...
University of Birmingham Adopts QVS
As you enter the grounds of the University of Birmingham, you will notice the great lengths they are going to, to provide a sustainable environmentally friendly...









