Isivamvo sokuqukuqela komoya (MAF), ekwabizwa ngokuba imitha yokuqukuqela komoya, yenye yezinzwa ezibalulekileyo ze-injini ye-EFI.Iguqula ukuhamba komoya ophefumlelweyo ibe ngumqondiso wombane kwaye uyithumele kwiyunithi yokulawula i-electronic control unit (ECU).Njengomnye wemiqondiso esisiseko yokumisela inaliti yamafutha, sisiva esilinganisa ukuhamba komoya kwi-injini.I-YASEN ngumvelisi ohamba phambili we-MAF we-sensor china.
Isivamvo sokuhamba komoya (MAF) sifakwe phakathi kwesihluzi somoya kunye neninzi yokungenisa ukulinganisa umgangatho womoya ongena kwi-injini.I-ECM ibala ububanzi be-injection ye-fuel pulse kunye ne-angle esisiseko yokutshisa kwangaphambili ngokusekelwe kwi-MAF signal.
Ukuhamba komoya ngocingo olushushu (MAF)
I-wire hot mass air flow (MAF) isiphaluka senzwa yenziwe ngenzwa, imodyuli yokulawula kunye nocingo oludibanisa ezinye iindawo ezimbini.I-sensor ikhupha umqondiso webhanki yamandla ombane we-DC kwimodyuli yokulawula amandla (ECM), i-amplitude ehambelana nomthamo womoya wokungena kwi-injini.
Isakhiwo esisisiseko socingo olushushu lokuhamba komoya lubandakanya iplatinam yocingo olushushu (icingo lokufudumeza lombane) oluvayo ukuhamba komoya, isixhasi sembuyekezo yeqondo lobushushu (ucingo olubandayo) olulungiswa ngokuhambelana nobushushu bokungenisa umoya, ibhodi yesekethe yokulawula itshaja engenazingcingo. elawula umjelo wocingo olushushu kwaye ivelise umqondiso wokuphuma, kunye neqokobhe lesixhobo sokuhamba komoya kunye namanye amacandelo.
Emva kokukhanyisa iswitshi yentshukumo yentshukumo yomlilo, iplatinam yocingo olushushu luba namandla kwaye luvelise ubushushu.Xa umoya uhamba ngolu cingo, ukupholisa ucingo olushushu luhambelana nomlinganiselo wokungenisa umoya.I-ECM igcina ubushushu bocingo olushushu rhoqo ngokulawula i-current flowing through the hot wire, ukwenzela ukuba i-current ilingane nomlinganiselo wokungenisa umoya, ngelixa i-ECM inokulinganisa inani langoku lokungena komoya ngokufumanisa amandla akhoyo ngoku.
Iimpawu ze-sensor yokuhamba komoya zincinci, ubunzima obulula, ukufundwa okubonakalayo kunye nokucacileyo, ukuthembeka okuphezulu, okungachatshazelwa ngumbane wangaphandle, kunye nokuchasana nombane.
Imeko yempazamo kunye nokuxilongwa kwenzwa yokuhamba komoya
Iimpazamo zokuhamba komoya (MAF) sensor zohlulwe zibe ziindidi ezimbini.Enye kukuba umqondiso udlula uluhlu oluchaziweyo, ebonisa ukuba i-sensor flow flow ayiphumelelanga.Izithuthi zanamhlanje ezilawulwa yi-elektroniki zinomsebenzi wokukhusela ukusilela.Xa umqondiso we-sensor uhluleka, iyunithi yokulawula i-electronic (ECU) iya kuthatha indawo yayo ngexabiso elimiselweyo, okanye ithathe indawo yesiginali ye-sensor ephosakeleyo ngomqondiso wezinye iinzwa.Emva kokuba i-sensor ye-MAF ingaphumeleli, i-ECU ithatha indawo yayo kunye nomqondiso we-throttle position sensor.Enye inkathazo luphawu olungachanekanga (okt i-performance drift).Ukungachaneki kwesivamvo sokuhamba komoya kunokuba yingozi ngakumbi njengesalmosan azamethiphos kunokuba kungabikho mqondiso.Ekubeni isignali ayigqithisi uluhlu oluchaziweyo, iyunithi yokulawula i-electronic (ECU) iya kulawula ubuninzi be-injection ye-fuel ngokwalo mqondiso we-airflow engachanekanga, ngoko ke, umxube uya kuba mncinci okanye ube nobutyebi.Ukuba akukho mqondiso wokuhamba komoya, i-ECU iya kusebenzisa isignali ye-throttle position sensor endaweni yoko, kwaye isantya esingenamsebenzi se-injini sizinzile.
Xa isignali ye-sensor ye-air flow ihluleka, izinto eziphambili zokungaphumeleli zinzima ukuqala, ukungahambi kakuhle, ukukhawuleza ukukhawuleza, ukusetyenziswa kakubi kwepetroli kunye nokukhupha ukusebenza (EGR), njl. ngenxa yoko, inzwa iyakhululeka emva kokuba isithuthi siqale.Ngale ndlela, ixabiso lesignali yombane elifunyenwe yinzwa ye-MAF ine-portafilter yokuguquguquka okukhawulezileyo (utshintsho oluphezulu noluphantsi).I-ECM ilawula ububanzi be-injection ye-fuel pulse ngokusekelwe kulo mqondiso, obangela ukuba injini isebenze.
Ezona zizathu ziphambili zokusilela kwe-MAF:
- Umonakalo wangaphakathi kwinzwa;
- Umkhombandlela wofakelo olungalunganga lomenzi woluvo (umva)
- Vula / isiphaluka esifutshane se-terminal sensor okanye umgca
Ukunyangwa kwenzwa yefilimu eshushu eyonakeleyo (MAF).
Xa i-voltage yonikezelo lwamandla iphezulu kakhulu okanye kukho i-voltage ephezulu ngokukhawuleza, ifilimu eshushu yomsindo wokuhamba komoya kulula ukuyitshisa.Isizathu sokuba i-voltage ephezulu yesekethe iphezulu kakhulu (ngaphezulu kwe-16V) ihlala ixakeke kakhulu ibhetri, enciphisa umthamo wayo kwaye ayinakukwazi ukufunxa amandla ombane aphezulu wejeneretha.Ngoko ke, ibhetri vulcanization sesinye sezizathu zomonakalo wefilimu eshushu yomsindo wokuhamba komoya.Isisombululo kukufaka "i-7812" i-voltage ye-terminal emithathu yokuzinzisa isekethe edibeneyo kwisiphelo sangaphambili se-movie eshushu yomsindo wokuhamba komoya.
Ukuqukumbela
Inzwa ye-MAF yinxalenye ebalulekileyo yemoto, kuyimfuneko ukuba abantu babe nokuqonda okufutshane malunga nendlela yokuxilonga kunye nokulungisa umonakalo wayo.Ngokwenyani baninzi ababoneleli beenzwa zehoseyile baseTshayina, ngolwazi oluthe kratya, pls qhagamshelana no-YASEN.
Ixesha lokuposa: Nov-24-2021