Skip to main content

Brigade launches QVS sound system for hybrid and EVs

Electronic vehicles (EVs) are a technical marvel – but vulnerable road users (VRUs) can’t hear them, which creates obvious safety problems. Brigade Electronics says help is at hand with its Quiet Vehicle Sounder (QVS), a speaker system which the company says reduces collisions between pedestrians and hybrids and EVs. The QVS, also known as an acoustic vehicle alerting system, simulates the sound characteristics of an internal combustion engine by emitting a blend of bbs-tek white sound frequencies that
June 17, 2019 Read time: 1 min
Electronic vehicles (EVs) are a technical marvel – but vulnerable road users (VRUs) can’t hear them, which creates obvious safety problems.


4065 Brigade Electronics says help is at hand with its Quiet Vehicle Sounder (QVS), a speaker system which the company says reduces collisions between pedestrians and hybrids and EVs.  

The QVS, also known as an acoustic vehicle alerting system, simulates the sound characteristics of an internal combustion engine by emitting a blend of bbs-tek white sound frequencies that are used in vehicle reversing alarms.

According to Brigade, the solution changes pitch according to the speed of the vehicle and produces a sound that a VRU can identify as a vehicle.

The QVS can be retrofitted to most commercial vehicles and works from a 12 or 24 volt power source to avoid draining the power of a hybrid vehicle or EV, the company adds.

Related Content

  • Bridge & tunnel management: seeing the bigger picture
    September 10, 2024
    A variety of technologies are available to monitor the health of critical infrastructure – and to keep the drivers who use it safe by flagging incidents while reducing false alarms
  • LiDAR sets its sights on future problems
    February 23, 2017
    AAdvances in LiDAR are helping transport authorities improve services and identify potential problem areas, as geospatial technology expert Dr Neil Slatcher explains. The effects of climate change on the transport infrastructure have long been a cause of concern within the transportation sector - and not only on the structures themselves but also on the surrounding areas. This year, those concerns have become reality with landslides, structural collapses and surfacing issues impacting services across the wo
  • EVs: Time for a rethink
    December 14, 2021
    Given a growing body of evidence that EVs are not the clean, green machines they are made out to be, Andrew Bunn suggests they can only be part of the puzzle – not the answer to environmental problems
  • Humanising Autonomy aids VRU perception
    May 31, 2021
    Behaviour AI 'enables more accurate' VRU collision warnings for drivers than ADAS does