This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Noise Refinement Solutions for Vehicle HVAC Systems
Technical Paper
2007-01-2184
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Noise and vibration have important influence on customer's perception of vehicle quality. Research and development have been conducted to investigate the vehicle Heating, Ventilation and Air Conditioning (HVAC) noise generation and transmission mechanism. Noise and vibration comparison tests have been completed for the proposed refinement solutions. Testing results are discussed paying special attentions to the air borne noise reduction.
One of interior noise major contributors is the HVAC system, as air handling unit of the HVAC system is located behind the vehicle instrument panel within the cabin. Modifications made to internal structural geometry of the system have been conducted to provide insight into the effect of each structural feature on the overall Sound Pressure Level (SPL) and frequency spectrum components. Acoustic felts have been applied onto some selected locations of the system, test data shows that both the overall noise level and the noise spectrum peaks at specific frequencies have been reduced.
Recommended Content
Technical Paper | NVH Optimization for Passenger Car Thermal Systems |
Technical Paper | Vehicle Interior Noise Source Identification and Analysis for Benchmarking |
Technical Paper | Acoustic Analysis of Vehicle Ribbed Floor |
Topic
Citation
Wang, X. and Watkins, S., "Noise Refinement Solutions for Vehicle HVAC Systems," SAE Technical Paper 2007-01-2184, 2007, https://doi.org/10.4271/2007-01-2184.Also In
SAE 2007 Transactions Journal of Passenger Cars: Mechanical Systems
Number: V116-6; Published: 2008-08-15
Number: V116-6; Published: 2008-08-15
References
- Kamiyama, N. K Uomoto, M. 1997 “ Development of Low Noise Blower Fan Saeki ” SAE Paper No 971842
- 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