Inzwa yoxinzelelo lokungenisa.
I-sensor yoxinzelelo lokungenisa umoya (iManifoldAbsolutePressureSensor), emva koko ebizwa ngokuba yiMAP. Iqhagamshelwe kwi-incanation manifold ngetyhubhu ye-vacuum, kwaye ngomthwalo wesantya owahlukileyo wenjini, utshintsho lwe-vacuum kwi-incanation manifold luyabangelwa, kwaye utshintsho lokumelana kwi-sensor luguqulwa lube yisignali ye-voltage ukuze i-ECU ilungise ubungakanani be-injection kunye nexesha lokutsha kwe-ignition.
Kwinjini ye-EFI, isenzi soxinzelelo lokungenisa sisetyenziselwa ukubona umthamo wokungenisa, esibizwa ngokuba yi-D-injection system (uhlobo loxinano lwesantya). Isenzi soxinzelelo lokungenisa sifumanisa ukuba umthamo wokungenisa awubonwa ngokuthe ngqo njengesenzi sokungenisa, kodwa sisebenzisa ukufumanisa okungathanga ngqo, kwaye sichaphazeleka zizinto ezininzi, ngoko ke kukho iindawo ezininzi ezahlukeneyo ekufumaneni nasekugcinweni kunesenzi sokungenisa, kwaye impazamo eveliswayo nayo inezinto zayo ezikhethekileyo.
I-input pressure sensor ibona uxinzelelo olupheleleyo lwe-input manifold engasemva kwevalvu ye-throttle, ebona utshintsho olupheleleyo loxinzelelo kwi-manifold ngokwesantya senjini kunye nomthwalo, ize iguqule i-signal voltage ibe yiyunithi yokulawula injini (ECU), kwaye i-ECU ilawula ubungakanani be-fuel injection esisiseko ngokobukhulu be-signal voltage.
I-input pressure sensor luhlobo lwe-sensor esetyenziselwa ukujonga utshintsho loxinzelelo kwinkqubo yokungenisa injini. Idlala indima ebalulekileyo kwiimoto okanye kwezinye izixhobo zenjini zokutsha ngaphakathi.
Imisebenzi ephambili yesivamvo soxinzelelo lokungenisa yile ilandelayo:
1. Uhlengahlengiso lwepetroli: Isenzi soxinzelelo lokungenisa sinokulinganisa uxinzelelo olukwipayipi yokungenisa kwaye sinike idatha echanekileyo yoxinzelelo lokungenisa kwiyunithi yolawulo lwenjini. Ngokusekelwe kolu lwazi, iyunithi yolawulo inokulungisa unikezelo lwepetroli ukuze ibonelele ngokusebenza kakuhle nangokutsha okuphezulu.
2. Ulawulo lwenjini: Isignali yesenzi soxinzelelo lokungenisa igesi ikwasetyenziselwa uphuhliso lweendlela zokulawula injini. Lungisa ixesha lokutsha, ixesha levalvu, kunye nezinye iiparameter ezibalulekileyo ngokusekelwe kutshintsho kuxinzelelo lokungenisa ukuze kubekho amandla angcono, ukonga amafutha, kunye nolawulo lokukhutshwa komoya.
3. Ukuchonga iimpazamo: I-sensor yoxinzelelo lokungenisa inokujonga imeko yokusebenza kwenkqubo yokungenisa kwaye ithumele ikhowudi yempazamo kwiyunithi yolawulo xa kuvela into engaqhelekanga. Oku kunceda ekufumaneni nasekuxilongeni iingxaki ezinxulumene nenkqubo yokungenisa, njengokuvuza komoya kumbhobho wokungenisa, ukungaphumeleli kwesensor okanye uxinzelelo olungaqhelekanga.
Lilonke, isenzi soxinzelelo lokungenisa umoya sibonelela ngedatha echanekileyo yolawulo lwenjini ngokulinganisa utshintsho loxinzelelo kwindlela yokungenisa umoya ukuze kuphuculwe ukusebenza kakuhle komlilo, umbane ophumayo kunye nolawulo lokukhupha umoya. Sidlala indima ebalulekileyo ekusebenzeni okuqhelekileyo kunye nokuchonga iimpazamo zenjini.
Zithini iimpawu zesivamvo sobushushu bokungenisa esaphukileyo?
01 Injini iyadinisa
Injini ebuthathaka luphawu olucacileyo lwesenzi sobushushu bokungenisa esingasebenzi kakuhle. Xa isignali yobushushu bamanzi enikwa sisinzwa sobushushu bomoya wokungenisa kwi-ECU iphezulu kunobushushu bamanzi bokwenyani, umxube uya kuba mncane, nto leyo ebangela ukuba injini ikhawuleze kancinci kwaye amandla anciphe. Ukongeza, ngenxa yokuba i-ECU ayifumani isignali yobushushu bamanzi echanekileyo, umxube unokuba mkhulu kakhulu okanye ube mncane kakhulu, nto leyo eyenza kube nzima ukuqala imoto ebandayo. Ke ngoko, ukusombulula le ngxaki, kudla ngokuba yimfuneko ukuhlaziya isenzi sobushushu bomoya wokungenisa.
02 Ayikwazi ukulawula ngokuchanekileyo ukufakwa kwepetroli
Ukonakala kwesenzi sobushushu bokungenisa kuya kubangela ukungakwazi ukulawula ngokuchanekileyo inaliti yepetroli. Oku kungenxa yokuba isenzi sobushushu bomoya wokungenisa sinoxanduva lokujonga ubushushu bomoya ongena enjinini nokudlulisela olu lwazi kwiyunithi yolawulo lwe-elektroniki yesithuthi (ECU). I-ECU ilungisa umthamo wenaliti yepetroli ngokusekelwe kolu lwazi ukuze iphucule ukusebenza kwenjini kunye nokusebenza kakuhle kwepetroli. Ukuba isenzi sonakele, i-ECU ayizukukwazi ukufumana idatha echanekileyo yobushushu bomoya, nto leyo ekhokelela ekufakweni kwepetroli ngendlela engachanekanga. Oku akuchaphazeli kuphela ukusebenza kwenjini, kodwa kunokukhokelela ekwandeni kokusetyenziswa kwepetroli.
03
Ifeni ihlala isebenza okanye ayisebenzi
Ukonakala kwesensor yobushushu bomoya wokungenisa umoya kunokubangela ukuba ifeni ijikeleze ngokwesiqhelo okanye ingabi njalo. Xa kukho ingxaki ngesensor yobushushu bokungenisa umoya, ayikwazi ukufunda ngokuchanekileyo ubushushu bokupholisa umoya wenjini, nto leyo echaphazela iyunithi yokulawula ifeni. Ukuba ukufundwa kwesensor kuphantsi, ifeni ingaqhubeka isebenza ukuzama ukunciphisa ubushushu bokupholisa umoya. Ngokwahlukileyo koko, ukuba ukufundwa kuphezulu, ifeni isenokungaqali, nto leyo ebangela ukuba injini ishushu kakhulu. Ke ngoko, ukuziphatha okungaqhelekanga kwefeni kunokuba luphawu olucacileyo lokungasebenzi kakuhle kwesensor yobushushu bomoya wokungenisa umoya.
04 Isalathisi sobushushu bamanzi obungaqhelekanga
Isalathisi sobushushu bamanzi esingaqhelekanga luphawu olucacileyo lwesenzi sobushushu bokungenisa umoya esonakeleyo. Xa kukho ingxaki ngesenzi sobushushu bokungenisa, sisenokungakwazi ukufunda ngokuchanekileyo ubushushu be-coolant yenjini, nto leyo ebangela ukufundwa okungachanekanga kwegeyiji yobushushu bamanzi. Oku kungachaneki kunokubangela ukuba umqhubi ahlulele imeko yobushushu benjini ngendlela engafanelekanga, nto leyo echaphazela ukhuseleko lokuqhuba. Ke ngoko, xa isalathisi sobushushu bamanzi sifunyenwe singaqhelekanga, isenzi sobushushu bomoya wokungenisa kufuneka sihlolwe ngokukhawuleza kwaye kulungiswe okanye kutshintshwe into efunekayo.
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