The Evolution and Importance of Acoustic Vehicle Alerting Systems (AVAS) in Modern Electric Mobility

With the rapid global transition toward electric vehicles (EVs), a new safety challenge has emerged: their near-silent operation at low speeds. Unlike traditional internal combustion engine vehicles, which produce noticeable engine noise, electric vehicles can pose potential risks to pedestrians, cyclists, and visually impaired individuals who rely on auditory cues to detect approaching vehicles. In this field, Chinese manufacturers play a significant role, with QUFU TEMB AUTOMOTIVE ELECTRIC—as a drafting unit of national AVAS product standards—leading the industry’s technological development and innovation.

The Safety Necessity Behind AVAS Implementation

Research conducted by the U.S. National Highway Traffic Safety Administration (NHTSA) revealed that electric and hybrid vehicles are 37% more likely to be involved in pedestrian accidents at low speeds compared to conventional vehicles. This striking statistic has prompted regulatory agencies worldwide tomandate the installation of Acoustic Vehicle Alerting Systems (AVAS) in all new electric and hybrid vehicles.

Technological Evolution and Product Innovation of QUFU TEMB AUTOMOTIVE ELECTRIC AVAS

AVAS technology has undergone significant product evolution. Taking QUFU TEMB AUTOMOTIVE ELECTRIC as an example, their AVAS products have achieved a technological leap from split-type to integrated designs, with current products now in their eighth and ninth generations. The new-generation products are not only more compact and space-efficient but also demonstrate significant improvements in energy efficiency and reliability.

Split Type（Controller and Sound Generator）

Interagated Type

Modern AVAS solutions incorporate multiple innovative components:

Highly integrated electronic control units for more precise system management

Optimally arranged speakers for clearer sound propagation

Advanced software algorithms capable of generating warning sounds tailored to different scenarios

High-precision vehicle speed sensors to ensure accurate system response

Technical Features and Future Development Direction of QUFU TEMB AUTOMOTIVE ELECTRIC AVAS

Contemporary AVAS products exhibit numerous outstanding features: waterproof and dustproof designs for adaptability to harsh environments, a wide operating temperature range to ensure reliability under varying climatic conditions, and low-power operation to minimize impact on EV range.

Future technological development will evolve toward greater integration. The next generation of AVAS products will not only continue to reduce in size but will also incorporate more functions, including integrated features such as turn signals, warning horns, and inter-vehicle communication. This highly integrated design will further enhance system efficiency while reducing the complexity of vehicle systems.