This content is not included in your SAE MOBILUS subscription, or you are not logged in.
An Investigation of Vehicle HVAC Cabin Noise
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 14, 2008 by SAE International in United States
Annotation ability available
Noise and vibration have an important influence on a customer's perception of vehicle quality and cabin interior noise levels are a key criteria. The interior sound levels of automobiles have been significantly reduced over the years, with reductions in power train, tire and external wind noise. One of the highest in-cabin noise levels now arises from heating, ventilating and air conditioning systems, generated by the air-rush noise at various HVAC settings. Thus quieter climate control systems are desired by car manufacturers.
A systematic benchmarking study was performed to investigate the in-cabin noise of vehicles. 21 passenger cars including compact, mid-size, full-size, and a truck were selected. Tests were conducted on relatively new production vehicles in various conditions. A binaural head system was used in front passenger seat to measure noise levels. The methodology used and the experimental results were presented in this paper.
It was found that the design of the HVAC system has a major influence on the vehicle in-cabin acoustic performance. The size/price of the vehicle may not correlate to the cabin quietness due to the complexity of acoustic effects in the HVAC system.
|Technical Paper||Investigation of the perceived sound quality of an automotive HVAC system|
|Technical Paper||Aeroacoustics Predictions of Automotive HVAC Systems|
|Technical Paper||Aeroacoustic Characteristics of Automotive HVAC Systems|
CitationMavuri, S., Watkins, S., Wang, X., St. Hill, S. et al., "An Investigation of Vehicle HVAC Cabin Noise," SAE Technical Paper 2008-01-0836, 2008, https://doi.org/10.4271/2008-01-0836.
- Toksoy, C. et al. 1995 “Design of an Automotive HVAC Blower Wheel for Flow, Noise and Structural Integrity” SAE 950437
- Saeki, N. et al 1997 “Development of Low Noise Blower Fan” SAE 971842
- Wang X. Watkins S. 2007 “Noise refinement solutions for vehicle HVAC” SAE paper 07NVC-112
- Brungart T. A. et al 1992 “Case History: Acoustic Diagnostics of an automotive HVAC System” Noise Control Engineering Journal 39
- Head acoustics www.headacoustics.com
- Brüel & Kjaer www.bksv.com