Inzwa yokucindezela kokungenisa.
Inzwa yokucindezela komoya (i-ManifoldAbsolutePressureSensor), ezobizwa ngokuthi i-MAP kamuva. Ixhunywe ku-incase manifold nge-vacuum tube, futhi ngomthwalo wejubane ohlukile wenjini, kubangelwa ushintsho lwe-vacuum ku-incase manifold, bese kuthi ushintsho lokumelana ku-sensor luguqulwe lube isignali ye-voltage ukuze i-ECU ilungise inani lomjovo kanye ne-ignition timing Angle.
Enjinini ye-EFI, inzwa yokucindezela kokungenisa isetshenziswa ukuthola ivolumu yokungenisa, ebizwa ngokuthi uhlelo lwe-D-injection (uhlobo lobuningi bejubane). Inzwa yokucindezela kokungenisa ithola ivolumu yokungenisa ayitholakali ngqo njengenzwa yokugeleza kokungenisa, kodwa isebenzisa ukutholwa okungaqondile, futhi ithintwa yizici eziningi, ngakho-ke kunezindawo eziningi ezahlukene ekutholeni nasekugcinweni kunenzwa yokugeleza kokungenisa, futhi iphutha elikhiqizwe nalo linezici zalo.
Inzwa yokucindezela kokungenisa ithola ukucindezela okuphelele kwe-manifold yokungenisa ngemuva kwe-valve ye-throttle, ethola ushintsho olukhulu lokucindezela ku-manifold ngokuya ngesivinini senjini kanye nomthwalo, bese iguqula i-voltage yesiginali ibe yiyunithi yokulawula injini (ECU), bese i-ECU ilawula inani eliyisisekelo lokufakwa kukaphethiloli ngokuya ngobukhulu be-voltage yesiginali.
Inzwa yokucindezela kokungenisa uhlobo lwenzwa esetshenziselwa ukuqapha ushintsho lokucindezela ohlelweni lokungenisa injini. Idlala indima ebalulekile ezimotweni noma kwezinye izinto zenjini yokushisa yangaphakathi.
Imisebenzi eyinhloko yenzwa yokucindezela kokungenisa yilena elandelayo:
1. Ukulungiswa kukaphethiloli: Inzwa yokucindezela kokungenisa ingalinganisa ingcindezi epayipini lokungenisa futhi inikeze idatha enembile yokucindezela kokungenisa eyunithi yokulawula injini. Ngokusekelwe kulolu lwazi, iyunithi yokulawula ingalungisa ukuphakelwa kukaphethiloli ukuze inikeze ukusebenza kahle kokushisa okuphezulu kanye nokusebenza kahle.
2. Ukulawulwa kwenjini: Isignali yenzwa yokucindezela kokungenisa isetshenziswa futhi ekuthuthukiseni amasu okulawula injini. Lungisa isikhathi sokushisa, isikhathi se-valve, kanye nezinye izinhlaka ezibalulekile ngokusekelwe ezinguqukweni zokucindezela kokungenisa ukuze uthole amandla angcono, ukonga uphethiloli, kanye nokulawula ukukhishwa komoya.
3. Ukutholwa kwephutha: Inzwa yokucindezela kokungenisa ingaqapha isimo sokusebenza kwesistimu yokungenisa futhi ithumele ikhodi yephutha kuyunithi yokulawula lapho kuvela i-anomaly. Lokhu kusiza ukuthola nokuxilonga izinkinga ezihlobene nesistimu yokungenisa, njengokuvuza komoya epayipini lokungenisa, ukwehluleka kwenzwa noma ukucindezela okungavamile.
Sekukonke, inzwa yokucindezela kokungenisa inikeza idatha enembile yokulawula injini ngokulinganisa izinguquko zokucindezela emgudwini wokungenisa ukuze kuthuthukiswe ukusebenza kahle kokushisa, ukukhishwa kwamandla kanye nokulawula ukukhishwa komoya. Idlala indima ebalulekile ekusebenzeni okuvamile kanye nokuxilongwa kwamaphutha enjini.
Yiziphi izimpawu zenzwa yokushisa yokungenisa ephukile?
01 Injini iyadina
Injini ebuthuntu iyisibonakaliso esicacile senzwa yokushisa kokungenisa enephutha. Uma isignali yokushisa kwamanzi enikezwa yinzwa yokushisa komoya wokungenisa ku-ECU iphakeme kunezinga lokushisa lamanzi langempela, ingxube izoba mncane, okuholela ekusheshiseni kwenjini okuhamba kancane kanye namandla anciphile. Ngaphezu kwalokho, ngenxa yokuthi i-ECU ayitholi isignali yokushisa kwamanzi enembile, ingxube ingase ibe nkulu kakhulu noma ibe mncane kakhulu, okwenza kube nzima ukuqala imoto ebandayo. Ngakho-ke, ukuze kuxazululwe le nkinga, ngokuvamile kuyadingeka ukulungisa inzwa yokushisa komoya wokungenisa.
02 Awukwazi ukulawula ngokunembile ukufakwa kukaphethiloli
Ukulimala kwenzwa yokushisa kokungenisa kuzoholela ekungakwazini ukulawula ngokunembile ukujova kukaphethiloli. Lokhu kungenxa yokuthi inzwa yokushisa komoya wokungenisa inesibopho sokuqapha izinga lokushisa lomoya ongena enjinini nokudlulisela lolu lwazi kuyunithi yokulawula kagesi yemoto (ECU). I-ECU ilungisa ivolumu yokujova kaphethiloli ngokusekelwe kulolu lwazi ukuze ithuthukise ukusebenza kwenjini kanye nokusebenza kahle kukaphethiloli. Uma inzwa yonakele, i-ECU ngeke ikwazi ukuthola idatha enembile yokushisa komoya, okuholela ekujovweni kukaphethiloli okungalungile. Lokhu akuthinti nje kuphela ukusebenza kwenjini, kodwa futhi kungaholela ekwandeni kokusetshenziswa kukaphethiloli.
03
Ifeni ihlala isebenza noma ayisebenzi
Umonakalo wesenzwa yokushisa komoya wokungenisa ungabangela ukuthi ifeni ijikeleze ngokujwayelekile noma cha. Uma kunenkinga yesenzwa yokushisa kokungenisa, ayikwazi ukufunda ngokunembile izinga lokushisa lokupholisa injini, okuthinta iyunithi yokulawula ifeni. Uma ukufunda kwesenzwa kuphansi, ifeni ingaqhubeka isebenza ngomzamo wokwehlisa izinga lokushisa lokupholisa. Ngokuphambene nalokho, uma ukufunda kuphakeme, ifeni ingase ingaqali, okubangela ukuba injini ishise ngokweqile. Ngakho-ke, ukuziphatha okungavamile kwefeni kungaba uphawu olucacile lokwehluleka kwesenzwa yokushisa komoya wokungenisa.
04 Isibonakaliso sokushisa kwamanzi okungajwayelekile
Isibonakaliso sokushisa kwamanzi esingajwayelekile siwuphawu olusobala lwenzwa yokushisa kokungenisa umoya eyonakele. Uma kunenkinga ngenzwa yokushisa kokungenisa, ingase ingakwazi ukufunda ngokunembile izinga lokushisa lenjini elipholile, okuholela ekufundweni okungalungile kwesilinganiso sokushisa kwamanzi. Lokhu kungalungi kungabangela umshayeli ukuthi ahlulele kabi isimo sokushisa senjini, okuthinta ukuphepha kokushayela. Ngakho-ke, uma isibonakaliso sokushisa kwamanzi sitholakale singavamile, inzwa yokushisa komoya wokungenisa kufanele ihlolwe ngokushesha okukhulu kanye nokulungiswa noma ukushintshwa okudingekayo.
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