汽车供热通风及空调系统噪声测试与分析

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1、第1卷第4期汽车工程学报VO1．1NO．42011年9月ChineseJournalofAutomotiveEngineeringSept．2011汽车供热通风及空调系统噪声测试与分析NiranjanHumbad(美国贝洱公司，密歇根，特洛伊48083，美国)摘要：介绍了车辆级及台架级噪声测试的方法，适于对供热通风及空调系统(HVAC)的气流噪声、风机电机噪声和执行器噪声进行评价。半消声室和混响室噪声测试均可用于车辆及模块在开发过程中气流声的测试，模块的噪声测试还可对车辆的气流声进行预测。现有的噪声测试和分析技术还不够完善，在此提出了一种新的分析方法用于

2、噪声计算。关键词：声品质；气流声；供热通风及空调系统(HVAC)；噪声分析；噪声预测中图分类号：TB535文献标志码：ADOI：10．3969~．issn．2095—1469．2011．04．007AutomotiveHVACNoiseMeasurementsandAnalysisNiranjanHumbad(BehrAmerica，Troy,MI48083，USA)Abstract：ThispaperpresentsvehiclelevelandbenchlevelnoisetestingmethodssuitableforevaluatingHVAC

3、arushnoise．bk)wermot()rnoiseandactuatornoise．Sembanechoicroomvehiclenoisemeasurementsandthereverberationroommodulenoisemeasurementscanbeusedindevelopingvehicleand／ormoduleairrushnoisesDecmcations．Themodulenoisemeasurementscanalsobeusedinpredictingvehicleairrushnoiseforagivensegme

4、nt／c1aSSofvehicles．Currentlyavailabletechniquesfororderandtonenoiseanalysisareinadequate·Anewanalysisapproachisdiscussedhereforsuchcalculations·Keywords：soundquality；airrushnoise；HVAC；noiseanalysis；noisepredictionsAutomotiveoccupantnoiSecomfortiSnoisepredictionsbasedonHVACmodulet

5、esting．AveryimportantduringvehicleHVAC(Heating，newapproachforsoundqualityanalysisfortheorderVentilationandAirConditioning)operation．Thisandtonalnoisesisincludedinthispaper．requiresunderstandingthecustomerexpectations，andtranslatingthemintonoisespecificationsforVehicleclimatecontr

6、olnoiseistypicallyvehicleandsubsystemslikeHVACmodulesusingmeasuredatthedriverlocationtoinferthenoiseappropriatetestmethods．ThispaperreviewstypicalcomfortfromtheHVACoperation．Asemi—anechoicvehicleandmoduleHVACnoisetestmethodsusefulroomistypicallyusedforsuchnoisemeasurements．indeve

7、lopingthenoisespecificationsandforvehicleDetailsofvehiclenoisetestmethodaregivenbelow．Receiveddate：2Ol1一O9一l5汽车工程学报第1卷(1)Blowervoltagemapping：Starttheengine．withtheseatadjustedsothatthefaceoftheacousticMeasurethevoltagesneartheblowermotorconnectorheadis450mmfromthetopfrontofthest

8、eeringforeachspeedoftheHVACmoduleandfora