Umsebenzi wenzwa yokucindezela kokungenisa izimoto
Imisebenzi eyinhloko yenzwa yokucindezela kokungenisa umoya wezimoto ifaka phakathi izici ezilandelayo:
Nikeza isignali yomthwalo wenjini : Inzwa yokucindezela kokungenisa inikeza isignali yomthwalo wenjini ku-ECU (i-injini yokulawula iyunithi) ngokulinganisa ushintsho lokucindezela ku-incase manifold. Lezi zimpawu zisiza i-ECU ukulawula ngokunembile ububanzi be-injection pulse kanye nokuvulwa kwe-throttle ukuze kuthuthukiswe ukusebenza kwenjini kanye nokonga uphethiloli .
Lawula ukujova uphethiloli kanye nesikhathi sokusha: Izinzwa ziguqula izinguquko zokucindezela ku-input manifold zibe izimpawu zikagesi ze-ECU ukuze i-injection kaphethiloli kanye nesikhathi sokusha. Lapho umthwalo wenjini ukhuphuka, ingcindezi ku-input manifold iyancipha, isignali yokuphuma kwenzwa iyanda, kanti i-ECU inyusa inani lokujova uphethiloli futhi ilibazise i-injection advance Angle. Ngaphandle kwalokho, ukujova uphethiloli kuzoncishiswa futhi ukusha kuzothuthukiswa.
Lungisa isikhathi sokuvula ivalvu yokungenisa kanye nokufakwa kukaphethiloli: Enjinini enohlelo lokulawula ivalvu kagesi, inzwa yokucindezela kokungenisa ithola ushintsho lwengcindezi epayipini lokungenisa futhi ibala ngokunembile ivolumu yomoya kusilinda ngasinye ukuze ilungise isikhathi sokuvula ivalvu yokungenisa kanye nevolumu yokufakwa kukaphethiloli. Lokhu kusiza ukuthuthukisa ukusebenza kahle kanye nokukhishwa kwamandla kwenjini.
vikela injini: Inzwa yokucindezela kokungenisa ingathola nezimo zokusebenza ezingavamile zenjini, njengokushintsha kwengcindezi okungavamile, futhi ithumele amasignali ohlelweni lokulawula ukuvikela injini. Lokhu kusiza ukuvimbela umonakalo wenjini ngenxa yokugcwala ngokweqile noma ezinye izinkinga.
Isimiso sokusebenza : Inzwa yokucindezela kokungenisa imvamisa ixhunywe ku-incane manifold ngepayipi le-vacuum futhi izwa ushintsho lwe-vacuum ku-incane manifold. Njengoba ijubane lenjini kanye nomthwalo kushintsha, ingcindezi ku-incane manifold izoshintsha, kanti ukumelana ngaphakathi kwenzwa nakho kuzoshintsha ngokufanele, ngaleyo ndlela kukhishwe isignali ye-voltage. Lesi signali samukelwa yi-ECU futhi sisetshenziselwa ukulungisa ukujova kukaphethiloli kanye nesikhathi sokusha.
Umthelela wephutha: Uma inzwa yokucindezela kokungenisa yonakele, ingabangela isivinini esingazinzile sokungenzi lutho, ukusheshisa okubuthakathaka, ubunzima bokuqala, ukusetshenziswa kukaphethiloli okwandisiwe kanye nezinye izinkinga zemoto. Ngesikhathi esifanayo, isibani sephutha senjini sizokhanya, futhi ikhodi yephutha ehambisanayo izogcinwa.
Ngakho-ke, ukuhlolwa njalo nokugcinwa kwenzwa yokucindezela kokungenisa kubalulekile ukuqinisekisa ukusebenza okuvamile kwemoto.
I-Manifold Absolute Pressure Sensor (MAP) iyisici esibalulekile enjinini yezimoto esiqapha izinguquko zokucindezela ku-input manifold futhi siguqula lezi zinguquko zibe amasignali kagesi ukuze kulawulwe ngokunembile yiyunithi yokulawula kagesi yenjini (ECU). I-input pressure sensor ixhunywe ku-input manifold ngethubhu ye-vacuum futhi ingezwa ushintsho lwe-vacuum ku-input manifold. Ngejubane lenjini elihlukile kanye nomthwalo, ukumelana ngaphakathi kwe-sensor kuzoshintsha, okuzoguqulwa kube isignali ye-voltage ye-ECU ukulungisa inani lokujova uphethiloli kanye nesikhathi sokusha .
Isimiso sokusebenza
Isimiso sokusebenza senzwa yokucindezela kokungenisa sisekelwe ekushintsheni kokumelana okubangelwa ushintsho lwengcindezi. Thatha inzwa yokucindezela yohlobo lwe-varistor njengesibonelo, ingxenye yayo eyinhloko iyi-diaphragm ye-silicon eyenziwe ngomphumela we-piezoresistive we-semiconductor. Lapho ingcindezi ye-input manifold isebenza ku-diaphragm ye-silicon, i-diaphragm izoshintsha, okuholela ekushintsheni kwenani layo lokumelana. Lolu shintsho luguqulwa lube isignali kagesi, ekhuliswa futhi idluliselwe ku-ECU. Ngokusekelwe ku-voltage yesignali etholiwe, i-ECU ilawula ngokunembile ukujova kukaphethiloli okuyisisekelo ukuze kuhambisane nezidingo ezahlukene zokushayela .
Izinhlobo kanye nezinhlelo zokusebenza
Kunezinhlobo eziningi zezinzwa zokucindezela kokungenisa, ezivamile yi-varistor ye-semiconductor, i-vacuum bellows kanye ne-capacitive. Phakathi kwazo, i-varistor ye-semiconductor isetshenziswa kabanzi ohlelweni lokujova lohlobo lwe-D ngenxa yezinzuzo zalo zokuphendula okusheshayo, ukunemba okuphezulu, usayizi omncane kanye nokufakwa okuguquguqukayo. Inzwa ye-capacitive isebenzisa i-diaphragm ukwakha isici esizwela ukucindezela esinenani le-capacitance eliguquguqukayo, futhi iguqula ushintsho lokucindezela lube isignali kagesi ngokulinganisa isekethe.
Ukunakekelwa kanye nokuxilongwa kwamaphutha
Ukuxilongwa kwephutha kwenzwa yokucindezela kokungenisa kuvame ukuhilela ukuhlola ukuthi isignali yayo yokukhipha ingaphakathi kwebanga elijwayelekile. Uma isignali yokukhipha inzwa ingajwayelekile, ukusebenza kwenjini kungase kwehle noma kungazinzile. Ngesikhathi sokulungisa, hlola njalo uxhumano nokuvalwa kwenzwa ukuqinisekisa ukuthi isebenza kahle.
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