Acoustic Vehicle Alerting System

Contextual Sound Generation

Speed-Based Activation:

0–20km/h: Emits a distinct, non-distracting tone (adjustable volume linked to speed) to signal vehicle presence without causing noise pollution.

Neutral/Stationary: No sound to avoid unnecessary alerts (e.g., at traffic lights or in parking lots).

Reverse Gear: Plays a clear "Du Du" warning tone to indicate backward movement, enhancing safety during parking or loading.

CAN Network Integration: Pulls real-time data (gear status, speed) from the vehicle's CAN bus for precise, responsive operation.

Optimal Audibility

75dB Max Output (12V/1m Front): Meets global safety standards (e.g., UN R147) to ensure pedestrians hear the alert without overwhelming urban noise.

Directional Sound Design: Focuses sound projection forward/backward based on vehicle movement, minimizing disturbance to nearby residents.

Electrical Flexibility

Dual Voltage Compatibility:

12V/24V rated voltage with 1-mode (16V/12V) and 2-mode (16V–32V/24V) operation, suitable for all EV types (passenger cars, buses, delivery trucks).

Low Power Consumption: ≤0.8A at 12V ensures minimal impact on EV battery range-ideal for energy-efficient fleets.

Environmental Resilience

Wide Temperature Range:

Operational: -30°C to +85°C (withstands extreme heat/cold in desert/arctic climates).

Storage: -40°C to +105°C for long-term durability during transit or inventory.

IP67 Protection: Dust-tight and waterproof (1m submersion for 30 minutes), reliable in rain, snow, or dusty urban roads.

Efficient Data Handling

Dual Baud Rates: 250kbps/500kbps for fast, error-free communication with the vehicle's ECU, ensuring real-time response to speed/gear changes.

Urban Driving & Pedestrian Zones

Low-Speed Maneuvers: Alerts pedestrians in crowded areas (sidewalks, crosswalks) where EVs are most silent, reducing "quiet car" accidents.

Residential & Commercial Areas: Prevents collisions in parking lots, school zones, and delivery routes-critical for shared urban spaces.

Electric Vehicle Types

Passenger Cars & SUVs: Improves safety during city commutes and neighborhood driving.

Commercial Vehicles: Essential for electric buses, delivery vans, and forklifts operating in pedestrian-heavy logistics hubs.

Stringent Testing Standards

Functional Validation: 10,000-hour continuous operation test to ensure tone consistency and CAN bus reliability.

EMC/EMI Compliance: Meets CISPR 25 Class 3 to avoid interference with EV electronics (e.g., navigation, ADAS).

Manufacturing Excellence

Premium Components: Uses automotive-grade speakers and connectors for 50,000+ km lifespan.

100% Quality Checks: Each unit is tested for sound pressure level, temperature response, and CAN communication stability before shipment.

Seamless Integration

Plug-and-Play Design: Standardized CAN interface and mounting brackets reduce engineering effort for OEMs.

Custom Tone Options: Optional firmware updates to adjust alert sounds for brand-specific requirements (e.g., subtle vs. prominent tones).

Our acoustic vehicle alerting system bridges the gap between EV quietness and road safety, providing a reliable, adaptive solution for modern mobility. Backed by rigorous testing and global compliance, it's the essential component for EVs operating in urban environments-where every alert can prevent a collision.

Contact us today to discuss how our AVAS can enhance your EV's safety profile-engineered for protection, built for efficiency.