Climate-control-system blower noise reduction

  • 10-May-2013 03:57 EDT
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Behr America, Inc.’s analysis tools help automakers reduce climate-control-system blower noise by predicting vehicle noise levels from subsystem measurements, analyzing, and combining input from a large number of systems and locations within a vehicle. Additionally, Behr has developed a benchmark database for vehicle and module blower-noise levels for use in establishing and measuring noise-specification targets. The database also can be used to predict driver-location noise based on module-noise measurements taken in Behr’s anechoic chamber for a given vehicle segment as defined by J.D. Power & Associates. According to Behr America, the ability to model noise levels saves manual analysis time by as much as 100 to 200 times in some instances. The company developed a new 3-D approach for viewing large numbers of sound-quality evaluations as well; the 3-D visual displays save data analysis-and-reduction time. 

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