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1、汽车故障诊断实验指导书(Testguideforautofaultdiagnosis)Thedocumentcomesfromthenetwork,itismyowncollectionorganized,ifhaveomitted,theerror,stillaskseveryonetocorrect!Theexperimentalguidanceof，zcarfaultdiagnosis"Editor'switTherefereeinhuGuangdongelectromechanicalvocationaltechnicalcollegeExperimentoneeng
2、ineoutputpowertestandidletest(2hours)I.experimentaipurposeTheperformaneeoftheengineandtheoperatingstabilityoftheengineinidlestatewereevaluated,andtheemissionvalueoftheexhaustgaswasmeasuredintheidlestatetoevaluatetheengineperformancecomprehensivelyUnderstandthegeneralmethodofengineperformanc
3、eevaluationEquipmentandinstruments1.Testengine(gasolineengine)andtechnicaldata2.Wastegasdetector3.Measuringinstrumentforrotatingspeed4,astopwatchThird,experimentalprocedureandprinciple1.Starttheenginetoachievenormalworkingcondition(checkwatertemperatureandidlestate)Theidlespeedoftheobserved
4、engineshouldbearound750RPM3.DeterminationofenginespeedincreasetimeMethodisturnedtothethrottlequickly,enginespeedwillriserapidly,withastopwatchtorecordstartingquicklyopenthevalve,untiltheenginespeedthetimerequiredforupto3500RPMPayattentiontotheenginespeedofmorethan3,500RPM,immediatelyrelease
5、thethrottlevalve,andmakeitbacktoidlestate,lestenginedamageTheincreaseinenginespeedwillrepresentthemaximumpowerofaparticularengine・Theshorterthetime,thegreatertheenginepower4.Thetestofrepeatedenginespeedincreasetimeis3times,andtheaveragevalueiscomparedwiththestandardtimetocalculatethemaximum
6、powerofthestartingmotivationFormula:G=t/tt:thespeeduptimeofthismodelengine(standardvalue)G:themaximumpower(standardvalue)oftheenginetThespeedoftheenginemeasuredinthetestisupG:thepowerofthetestengine3.DeterminetheexhaustpollutantofgasolineengineinidlestateUseinstrument:wastegastesterExperime
7、ntoneengineoutputpowertestandidletestLabreportTheclassnameofholdstudentidnotedtheexperimentdate1.EngineparametersThemodel,thold,G1.TimerecordofenginespeedincreaseTheexperimentalsortingAtthebeginningofspeedThefinalspeedtnoteone23tTheaverage:Calculationofe
