Inzwa yengcindezi yokungenisa.
Inzwa yokucindezela kokuthatha komoya (ManifoldAbsolutePressureSensor), ngemuva kwalokhu ebizwa ngokuthi I-MAP. Ixhunywe ku-multifold intake nge-vacuum tube, futhi ngomthwalo ohlukile wejubane wenjini, ukuguqulwa kwe-vacuum ku-multifold intake iyengelwa, bese ushintsho lokumelana kunzwa luguqulwa lube isignali ye-voltage ye-ECU ukuze lungisa inani lomjovo kanye ne-engeli yesikhathi sokuthungela.
Enjinini ye-EFI, inzwa yokucindezela kokuthatha isetshenziselwa ukuthola umthamo wokungena, okubizwa ngokuthi i-D-injection system (uhlobo lwe-velocity density). Inzwa yokucindezela okuthathwayo ithola ivolumu yokuthatha ayitholakali ngokuqondile njengenzwa yokugeleza kokuthatha, kodwa isebenzisa ukutholwa okungaqondile, futhi iphinde ithintwa izici eziningi, ngakho-ke kunezindawo eziningi ezihlukene ekutholweni nasekulungisweni kunenzwa yokugeleza kokuthatha, futhi iphutha elenziwe libuye libe nemininingwane yalo.
Inzwa yokucindezela oyithathayo ibona ukucindezela okuphelele kwe-manifold intake ngemuva kwe-throttle valve, ethola ukuguqulwa okuphelele kwengcindezi ku-manifold ngokuya ngesivinini senjini nomthwalo, bese iguqula i-voltage yesiginali ibe yiyunithi yokulawula injini (ECU), futhi i-ECU ilawula inani eliyisisekelo lomjovo kaphethiloli ngokuya ngosayizi wevolthi yesignali.
Inzwa yokucindezela kokuthatha iwuhlobo lwenzwa esetshenziselwa ukuqapha ushintsho lwengcindezi ohlelweni lokuthatha injini. Idlala indima ebalulekile ezimotweni noma kwezinye izinto zangaphakathi zenjini evuthayo.
Imisebenzi eyinhloko yenzwa yokucindezela kokuthatha imi kanje:
1. Ukulungiswa kwamafutha: Inzwa yokucindezela kokuthatha ingakala ingcindezi epayipini lokungenisa futhi inikeze idatha enembile yokucindezela kokuthatha kuyunithi yokulawula injini. Ngokusekelwe kule datha, iyunithi yokulawula ingalungisa ukunikezwa kukaphethiloli ukuze inikeze ukusebenza kahle okuphezulu kokuvutha nokusebenza.
2. Ukulawulwa kwenjini: Isiginali yenzwa yokucindezela kokuthatha nayo isetshenziselwa ukuthuthukiswa kwamasu okulawula injini. Lungisa isikhathi sokubasa, isikhathi se-valve, nezinye izinhlaka ezibalulekile ngokusekelwe ekushintsheni kwengcindezi yokuthatha amandla angcono, ukonga uphethiloli, nokulawula ukungcola.
3. Ukutholwa kwephutha: Inzwa yokucindezela kokuthatha ingaqapha isimo sokusebenza sesistimu yokuthatha futhi ithumele ikhodi yephutha kuyunithi yokulawula lapho kwenzeka okudidayo. Lokhu kusiza ukuthola nokuxilonga izinkinga ezihlobene nesistimu yokuthatha, njengokuvuza komoya epayipini elingenisayo, ukwehluleka kwezinzwa noma ukucindezela okungavamile.
Sekukonke, inzwa yokucindezela kokuthatha ihlinzeka ngedatha enembile yokulawula injini ngokulinganisa izinguquko zengcindezi kumzila owuthathayo ukuze kuthuthukiswe ukusebenza kahle komlilo, ukuphuma kwamandla nokulawula ukukhishwa kwekhabhoni. Idlala indima ebalulekile ekusebenzeni okujwayelekile kanye nokuxilongwa kwephutha kwenjini.
Yiziphi izimpawu zenzwa yezinga lokushisa lokungenisa eliphukile?
01 Injini iyabhora
Injini ebuthuntu kuwuphawu olucacile lwenzwa yezinga lokushisa lokungenisa elingalungile. Lapho isignali yezinga lokushisa lamanzi elinikezwa inzwa yokushisa komoya wokungena ku-ECU iphakeme kunezinga lokushisa langempela lamanzi, ingxube izoba mncane, okuholela ekusheshiseni kwenjini kancane namandla ehla. Ngaphezu kwalokho, ngenxa yokuthi i-ECU ayitholi isignali enembile yokushisa kwamanzi, ingxube ingase ibe mkhulu kakhulu noma ibe mncane kakhulu, okwenza kube nzima ukuqala imoto ebandayo. Ngakho-ke, ukuxazulula le nkinga, ngokuvamile kudingekile ukulungisa inzwa yokushisa komoya wokungena.
02 Ayikwazi ukulawula ngokunembile umjovo kaphethiloli
Ukulimala kwenzwa yezinga lokushisa elithathayo kuzoholela ekungakwazini ukulawula ngokunembile umjovo kaphethiloli. Lokhu kungenxa yokuthi inzwa yokushisa komoya oyithathayo inomthwalo wemfanelo wokuqapha izinga lokushisa lomoya ongena enjinini futhi idlulisele lolu lwazi kuyunithi yokulawula i-electronic yemoto (ECU). I-ECU ilungisa umthamo womjovo kaphethiloli ngokusekelwe kule datha ukuze ithuthukise ukusebenza kwenjini nokusebenza kahle kukaphethiloli. Uma inzwa yonakalisiwe, i-ECU ngeke ikwazi ukuthola idatha enembile yokushisa komoya, okuholela ekujovweni kukaphethiloli okungalungile. Lokhu akuthinti nje ukusebenza kwenjini kuphela, kodwa kungase kuholele ekwenyukeni kokusetshenziswa kukaphethiloli.
03
Ifeni ihlala isebenza noma ayisebenzi
Ukulimala kwenzwa yezinga lokushisa lomoya oyithathayo kungase kubangele ukuthi ifeni ijikelezise ngokujwayelekile noma cha. Uma kunenkinga ngenzwa yezinga lokushisa elithathayo, ayikwazi ukufunda ngokunembile izinga lokushisa elipholile lenjini, elithinta iyunithi yokulawula abalandeli. Uma ukufunda kwenzwa kuphansi, ifeni ingase iqhubeke nokusebenza ngomzamo wokwehlisa izinga lokushisa elipholile. Ngakolunye uhlangothi, uma ukufundwa kuphezulu, isiphephetha-moya singase singaqali, okubangela ukuba injini ishise kakhulu. Ngakho-ke, ukuziphatha okungavamile kwe-fan kungase kube uphawu olucacile lokuhluleka kwenzwa yokushisa yomoya wokungena.
04 Inkomba yokushisa kwamanzi okungejwayelekile
Inkomba yokushisa kwamanzi engavamile kuwuphawu olusobala lwenzwa yokushisa yokungenisa umoya eyonakele. Uma kunenkinga ngenzwa yezinga lokushisa elithathayo, ingase ingakwazi ukufunda ngokunembile izinga lokushisa elipholile lenjini, okuholela ekufundweni okungalungile kwegeji yokushisa kwamanzi. Lokhu kungalungile kungase kubangele ukuthi umshayeli ahlulele ngokungeyikho izinga lokushisa lenjini, okubuye kuphazamise ukuphepha kokushayela. Ngakho-ke, uma inkomba yokushisa kwamanzi itholakala ingavamile, inzwa yokushisa komoya wokungena kufanele ihlolwe ngokushesha ngangokunokwenzeka kanye nokulungiswa okudingekayo noma ukushintshwa.
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