[technology]

Heating, Ventilation, and Air Conditioning (HVAC)

Efficient noise suppression of ventilation systems

Heating, Ventilation, and Air Conditioning (HVAC)

Car blowers from ventilation systems, air conditioning, and heating generate significant noise, creating an uncomfortable environment for drivers and passengers.

Car blowers in HVAC (Heating, Ventilation, and Air Conditioning) systems produce significant noise, creating an uncomfortable environment that can overpower radios and disrupt conversations.

While adequate airflow to windows and passenger areas is crucial, increasing HVAC settings often results in higher ambient noise levels. The system consists of blowers, a mixing unit, and ductwork, which must effectively channel air, frequently leading to increased noise. Incorporating noise cancellation technology can address these challenges by generating counteracting sound waves that reduce HVAC noise, enhancing cabin comfort and allowing passengers to converse or enjoy music without raising their voices.

This technology also fosters a quieter driving experience, improving driver focus and reducing fatigue on long journeys, making it an excellent opportunity for manufacturers to enhance in-car environments.

AENC — Active Engine Noise Cancellation

Dynamic multi-order cancellation of engine and powertrain harmonics under transient RPM conditions

ARNC — Active Road Noise Cancellation

Broadband control of road and structure-borne noise with virtual microphones and listener-aware quiet-zone positioning

HVAC ANC — HVAC Noise Cancellation

Tonal and turbulent HVAC noise reduction using microphone references and the available cabin audio path

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