1. Product Overview
The acoustic vehicle alert system is designed to improve safety for pedestrians and cyclists in urban and residential areas where electric vehicles often move quietly. At speeds below 20 km/h, this system produces a clear and recognizable sound, making sure that people nearby can easily notice the approaching vehicle. By doing so, it helps prevent potential accidents while ensuring compliance with international safety regulations. For electric vehicle manufacturers, integrating such a system is not just about meeting standards, but about protecting lives.
2. Core Components
The acoustic vehicle alert system is built around a compact yet durable speaker module connected to the vehicle’s CAN network.
Speaker Unit: Generates sound with a maximum level of 75 dB at a distance of 1 meter, ensuring clarity without being disruptive.
Electronic Control Unit (ECU): Reads vehicle speed and gear position through the CAN bus, and triggers sound output accordingly.
Durability Housing: Rated IP67, offering protection against dust, water, and harsh environments.
This combination ensures reliability under both city and extreme driving conditions.
3. Key Functions
The acoustic vehicle alert system responds intelligently to driving conditions:
Neutral: The unit stays silent to avoid unnecessary noise.
Driving: Below 20 km/h, the system generates a distinctive alert tone that increases or decreases with vehicle speed.
Reversing: The system switches to a “Du Du” alert sound to clearly signal reverse movement.
By mimicking natural driving patterns, it ensures pedestrians and cyclists can intuitively recognize the vehicle’s behavior.
4. Advantages for Vehicle Safety
Enhanced Pedestrian Protection: Helps vulnerable road users notice approaching electric vehicles early.
Compliance with Regulations: Supports global EV safety requirements related to pedestrian warning systems.
Energy Efficient: Operates at
