Web Menu

Product Search

Language

Share

Customized Automotive AVAS and SAF

Changzhou Haoxiang Electronics Co., Ltd. Home / Products / Automotive AVAS and SAF

Products

Automotive AVAS and SAF
    Automotive AVAS and SAF

    Product parameters:

    Product Name: Automotive AVAS and SAF

    Product functions: Simulate engine sound to remind pedestrians and drivers of vehicle status

    Frequency range: 500~5000Hz

    Sound pressure level: 50~85dB

    Nominal voltage: DC 9V~32V

    Operating temperature: -40℃ ~85℃

    Storage temperature: -40℃ ~85℃

    Protection level: IP67

    Contact Us Data Sheet

Acoustic Vehicle Alerting System (AVAS) Manufacturers

Product Name: Auto AVAS - Acoustic Vehicle Alerting System

Product functions: simulated engine sound, alerts pedestrians to vehicle status

Frequency range: 500~5000Hz

Sound pressure level: 50~85dB

Nominal voltage: DC 9V~32V

Operating temperature: -40℃ ~85℃

Storage temperature: -40℃ ~85℃

Protection level: IP67

Popular Products

about TDA

Our story

Founded in 2002, TDA is a self-registered brand in China. The company is currently implementing IATF16949 and ISO13485 quality management systems. Acoustic Vehicle Alerting System Manufacturers and Wholesale Automotive AVAS and SAF Factory in China. By December 2022, TDA will have 4 production factories in Changzhou, Nantong, Chongqing, and Qingdao. The company's current main customers include B/S/H, Panasonic, GEA, Audi, Haier, etc. The company mainly produces various electroacoustic devices and injection molding parts, including various buzzers, car speakers, 5G speakers, coil speakers, microphones, etc. It has several independent research and development patent projects, among which piezoelectric speakers are used in many special fields due to their ultra-thin features. The products are mainly used in various home appliances, automobiles, security, medical and other industries. The company has self-supporting import and export rights, and its products are mainly exported to Europe and North America. The products meet the EU RoHS and REACH standards.
  • 4

    Production Factory

  • 21+

    Inudstry Experience

  • 300+

    Staff Member

Qualification Certificates

As Customized Acoustic Vehicle Alerting System Factory, The company is currently implementing IATF16949 and ISO13485 quality management systems. The products meet the EU RoHS and REACH standards.

  • IATF16949IATF16949
  • IATF16949IATF16949
  • ISO45001ISO45001
  • ISO14001ISO14001
  • ISO13485ISO13485
  • Trademark registrationTrademark registration
  • PatentsPatents
  • PatentsPatents
  • ISO13485ISO13485
  • ISO14001ISO14001

News

Industry Knowledge

How does Automotive AVAS integrate with other vehicle systems to ensure real-time alarms?
Automotive Acoustic Vehicle Alerting Systems (AVAS) integrate with other vehicle systems to ensure real-time alarms and enhance pedestrian safety. The integration process involves coordination with various vehicle components and sensors to produce audible alerts when necessary. Here's how AVAS typically integrates with other vehicle systems:
Vehicle Speed Sensors: AVAS systems often utilize vehicle speed sensors to determine the vehicle's speed. This information is crucial because the sound emitted by AVAS can change in volume and frequency based on the vehicle's speed. For example, the sound may be louder at lower speeds to ensure pedestrians hear it clearly.
Powertrain Control Module (PCM): AVAS may be linked to the powertrain control module or other vehicle control systems. This allows the AVAS to synchronize the sound emitted with the vehicle's acceleration or deceleration, ensuring pedestrians are alerted as the vehicle starts or stops.
Directional Sensors: Some AVAS systems are equipped with directional sensors or cameras that can detect the presence and location of pedestrians and other objects around the vehicle. This information helps the AVAS direct the sound toward pedestrians and obstacles as needed.
Control Unit: AVAS systems often have a dedicated control unit responsible for processing data from various sensors and determining when to activate the sound alerts. The control unit ensures real-time coordination of sound emission based on vehicle speed, direction, and proximity to pedestrians.
User Interface: In some cases, AVAS systems can be controlled or adjusted through the vehicle's user interface, allowing the driver to select different sound profiles or adjust the volume of the alerts.
Vehicle Communication Network: AVAS may communicate with other vehicle systems through the vehicle's internal communication network (e.g., CAN bus). This allows for seamless integration and coordination with other safety and control systems.
Regulatory Compliance: AVAS systems are designed to comply with specific regulations and standards related to pedestrian safety and noise emissions. Integration with the vehicle's systems ensures that the AVAS functions in accordance with these regulations.
Autonomous and Advanced Driver Assistance Systems (ADAS): In autonomous and ADAS-equipped vehicles, AVAS can work in conjunction with these systems to provide enhanced safety. For example, AVAS may alert pedestrians when an autonomous vehicle is approaching a crosswalk.
Energy Management: AVAS systems may also coordinate with the vehicle's energy management system to optimize power usage, ensuring that the AVAS operates efficiently without excessively draining the vehicle's battery.


How does Automotive AVAS alert passers-by without affecting the drivers in the car?
Automotive AVAS are designed to alert pedestrians and passers-by without significantly affecting the drivers or occupants inside the car. This is achieved through several design considerations and technologies:
Directional Sound Emission: AVAS systems are designed to emit sound primarily in the direction of pedestrians and passers-by rather than towards the vehicle's interior. Directional speakers or sound projection technology can be employed to achieve this. By focusing the sound outward, the alerts are less intrusive to vehicle occupants.
Sound Frequency and Volume Control: AVAS systems often have variable sound profiles that can adjust the frequency and volume of the emitted sound based on the vehicle's speed and driving conditions. At lower speeds, the sound may be more prominent to ensure pedestrians hear it, but at higher speeds, it may be quieter or less noticeable inside the vehicle.
Interior Sound Insulation: Vehicle manufacturers may incorporate sound insulation and acoustic materials in the vehicle's interior to minimize the transmission of sound from the AVAS system to the cabin. This helps isolate the sound intended for pedestrians from the driver and passengers.
Smart Activation: AVAS systems are designed to activate only when necessary. For example, they may be programmed to emit sound during low-speed driving, such as at parking lots or in urban areas, but remain silent at higher speeds on highways. This ensures that the alerts are relevant to the driving situation.
User Controls: Some AVAS systems allow vehicle occupants to adjust the volume or sound profile through the vehicle's user interface. This empowers drivers to customize the sound to their comfort while ensuring it remains audible to pedestrians.
Advanced Sound Technology: AVAS systems can employ advanced sound technology, such as phased-array speakers, to precisely control the direction and dispersion of sound. This technology enables the sound to be directed outward while minimizing its impact inside the vehicle.
Pedestrian Recognition: AVAS systems may incorporate sensors or cameras to detect the presence of pedestrians or obstacles around the vehicle. This allows the system to focus sound emissions specifically in the direction of pedestrians when needed.
Compliance with Regulations: AVAS systems are designed to comply with regulatory standards and safety requirements. This includes ensuring that the emitted sound is effective in alerting pedestrians while maintaining driver comfort.
Sound Signature: Some automakers choose to develop unique sound signatures or brand-specific sounds for their AVAS systems. This can help distinguish their vehicles while maintaining pedestrian safety.