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1、轮胎气压监测系统TPMS（译文）TirepressuremonitoringsystemTPMSTPMStirepressuremonitoringsystemabbreviation,Chinesemeaningforthetirepressuremonitoringsystem.TPMSisdividedintodirectandindirecttypetwo.DirectTPMSisawirelessintelligentsensor,monitoringsystem,mainlycomposedo
2、ftwoparts:hardware,sensorandtransmitterismountedontheinsidetires(sensorandtransmittercombo,integratedintoacompletemodularunit)andareceiverisarrangedinadrivingroomanddisplaydevice(foraftermarketTPMS,usuallythereceiverandthedisplayoftwoinone,integratedintoa
3、completemodularunit).Sensorforbridgetypeelectronicinductiondevice,real-timesensingaccurately,pressureandtemperaturemeasurementvalueswithineachtire,pressuretransmitterwillbesensed,temperaturedatainawireless(RFRF)wayistransmittedtothereceiver,displaytherece
4、ivedinformationdisplayed.Inthisway,thewholesystemoftirepressure,temperatureconditionsdoreal-timemonitoringofthewhole,whenanyoneofthetireairpressure,temperatureabnormalstatus,TPMSimmediatelytothedriverbythesound,lightalarmtoremindtheform.IndirectTPMSisnotd
5、irectlythroughthepressuretemperaturesensorintyre,buttheuseofABS(antilockbrakingsystem)wheelspeedsensorandananalysissoftwareintheindirectconversionwillchangethewheelspeedintothechangeofthetyrepressure,itshardwarecostisessentiallyzero,themainpartisananalysi
6、ssoftware.Itsworkingprincipleisthat,whenatirepressureisinsufficient,thetirediameterisrelativelysmall,itsspeedrelativetotheotheratireonthediagonalspeedbecomeslarger,thiswillchangeinindirectconversionspeedforthetyrepressurechanges,candiscoverwhetherthereisa
7、pressureshortage.TheadvantagesofindirectTPMS,lowcost,onlyneedtoinstallasoftwarecananalysis.Disadvantagesare:1)themonitoringprecisionisnotenough,onlyanestimateoftheresults,onlywhenaseriousshortageoftirepressurecanbedetected.2)whenthesystemalarmwhenthetirep
8、ressureisinsufficient,whichtireisunabletodisplayspecificproblems,mustbetestedtodeterminethefourtires.3)usuallycannotdisplaytheairpressurevalueofthetyre,onlyinthealarm,havebeenwarningsymbols.Andyoucannotdothemonitori
