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It turns out that "sound" is better than "silent"...

2022-04-22 09:00:00
With the rapid development of electric vehicles and the increasing number of electric vehicles, electric vehicles are quieter than traditional internal combustion engine vehicles according to the characteristics of the vehicle. In order to protect pedestrians and reduce accidents, the European Union issued a A new regulation on electric vehicles, all new silent electric and hybrid models must be equipped with AVAS system, has come into effect on July 1, 2019.

The regulation states that all new electric vehicles, mild hybrids and plug-in hybrids must now be equipped with an acoustic warning system AVAS, which will activate and emit a sound when the vehicle speed is below 20km/h, and the sound intensity must exceed 55 decibels, and below 75 decibels, to alert surrounding pedestrians and road users of the presence of electric vehicles.

 

 

Since the battery-powered engine makes no noise, the vehicle is quiet, at least at low speeds. Anyone who has had the opportunity to get up close and personal with an electric vehicle, be it a car or a motorcycle, is sure to be amazed that they can start suddenly and leave without making any sound.

 

Electric cars make less noise when driving at low speeds in town centres and car parks, which can cause problems for vulnerable groups such as the blind or visually impaired. The installation of a low-speed chime system for electric cars is to ensure the safety of all road users.

 

With years of independent research and development, BESTAR's acoustic vehicle alarm system (AVAS) for electric vehicles is suitable for -40 ℃ ~ 85 ℃ working environment, waterproof level: IP67, whether it is sun, rain, cold weather Freezing the ground, customers do not have to worry about the performance of the product for the product to be placed outside.

 

 

Not only that, the structure is smart, easy to install in the whole vehicle, and there are at least two or three built-in audio sources to choose from. It can realize the function of volume frequency conversion with speed, and its design is in line with the speed range, sound level limit, frequency range and sound type required by regulations, and can be customized according to customer needs using voltage, function, sound source and sound pressure.

 

The system protects all road users by making a sound when the electric car is travelling at speeds below 20 km/h, and a minimum 56 decibel driving sound can be heard. The sound wave will start from the front grille. The loudspeakers after that can be heard from all directions.

 

Some automakers have now designed unique driving sounds for their electric vehicles to help pedestrians "see" the road behind them.

 

AVAS is a related accessory product produced with the vigorous rise of the new energy vehicle industry, and is an essential part of most current electric, hybrid and other noiseless new energy vehicles. When a new energy vehicle is running at low speed in pure electric mode, AVAS can improve its perceptibility by emitting a simulated sound of the engine, which not only guarantees the safety of pedestrians, but also brings a better driving experience to the driver.