Izoba namiphi imiphumela emotweni uma inzwa ye-camshaft iphukile?
Inzwa ye-camshaft eyonakele ingabangela ubunzima ekuqaleni kwenjini, ukudlidliza ngesikhathi sokusebenza, amandla anciphile, ukusetshenziswa kukaphethiloli okwandisiwe, futhi ingase ibangele i-alamu yesibani esingasebenzi.
Ukungasebenzi Kahle Kwenjini Nokuqala Kwenjini
Ubunzima ekuqaliseni nasekushiseni okuphazamisayo: Ngemva kokuba inzwa yonakele, i-ECU ayikwazi ukunquma ngokunembile isimo sesilinda ngasinye kanye nesigaba se-camshaft, okuholela esikhathini sokushiseni okuphazamisayo, okubonakala njengokudinga imizamo eminingi yokuqala, noma ngisho nokubambezeleka kokuqala noma ukungakwazi ukuqala. Ezimweni ezimbi kakhulu, ngesikhathi senqubo yokuqala, kungase kube khona izimo zokubuyela emuva kwe-crankshaft kanye nokubuyela emuva kwe-incase manifold.
Ukuwohloka kokungenzi lutho kanye nokuzinza kokusebenza:
Ukudlidliza okukhulu kokungenzi lutho: Njengophawu lokuqhuma kabi kwenjini, ukudlidliza kusobala.
Ukuma kwenjini njalo ngesikhathi sokushayela: Ikakhulukazi esimweni sokufudumala, imoto ingase ime ngokuzumayo ngenkathi ishayela noma ifaka uphethiloli.
Impendulo yokusheshisa kancane: Ngemva kokunyathela i-accelerator, amandla aphumayo ayaphela, futhi ngokuvamile, ijubane lenjini kudingeka lidlule u-2500 rpm ukuze lithuthuke.
Ukuwohloka Kokusebenza Kwamandla kanye Nomnotho Kaphethiloli
Ukwehla okukhulu kokukhishwa kwamandla: Ngenxa yokuthi i-ECU ayitholi izimpawu zesigaba se-camshaft eziqondile, ukufakwa kukaphethiloli kanye nesikhathi sokushiswa akukwazi ukuvumelaniswa nokusebenza kwesilinda, okuholela ebuthakathakeni benjini, ukusheshisa okuhamba kancane, kanye nokusabela okuhamba kancane ngesikhathi sokukhuphuka noma ukudlula. I-ECU yamanye amamodeli ingase futhi ikhawulele ngenkuthalo isivinini esiphezulu senjini ukuvikela injini.
Ukusetshenziswa kukaphethiloli okwandisiwe kanye nokukhishwa komoya: Ukulawulwa kwe-ECU kokujova kukaphethiloli akunembile, kubangele ukujova kukaphethiloli ngokweqile noma ukujova kukaphethiloli okungahlelekile, futhi ukusetshenziswa kukaphethiloli okulinganisiwe kunganda ngo-15%-30%. Ngesikhathi esifanayo, ukushisa okungaphelele kuzobangela umusi omnyama ovela epayipini lokukhipha umoya, iphunga lokukhipha umoya elikhuphukile, futhi kungandisa umthwalo ku-sensor ye-oxygen kanye ne-catalytic converter enezindlela ezintathu, enengozi yokulimala ngesikhathi sokusebenza isikhathi eside.
Ukuvikelwa Kwesistimu kanye Nezingozi Ezingaba Khona Zemishini
Ukusebenza kwemodi yokuvikela amaphutha: Isibani samaphutha enjini sihlala sivuliwe (ngokuvamile sihambisana namakhodi amaphutha njenge-P0340), kanti i-ECU izongena kwimodi, inciphise ukuphuma kwamandla, futhi ingakhubaza imisebenzi efana nesikhathi se-valve eguquguqukayo (i-VVT). Okwamanje, imoto ingahamba amabanga amafushane kuphela, kodwa ukusebenza kwayo kunqunyelwe kakhulu.
Izingozi ezingaba khona zomonakalo wemishini:
Ukungahambisani kahle kwesikhathi sokushisa: Kungabangela ukuqhuma, futhi ngokuhamba kwesikhathi, kuzobangela umonakalo kusilinda, i-piston, nezinye izingxenye.
Ukwanda kokuguguleka kwendlela yokusebenza kwevalvu: I-ECU ayikwazi ukulawula ngokunembile isigaba sevalvu, okungase kukhulise ukuguguleka kwezingxenye zemishini ezihlobene.
Ezimweni ezimbi kakhulu lapho inzwa ye-crankshaft nayo yehluleka khona, imoto ingase yehluleke ngokuphelele ukuqala noma ukuma ngesikhathi sokusebenza.
Idiski yesignali ifakiwe phakathi kwe-diode ekhipha ukukhanya (i-LED) kanye ne-transistor ye-photoelectric (noma i-photodiode). Lapho imbobo edlulisa ukukhanya kudiski yesignali ijikeleza phakathi kwe-LED kanye ne-transistor ye-photoelectric, ukukhanya okukhishwe yi-LED kuzokhanya ku-transistor ye-photoelectric, lapho i-transistor ye-photoelectric iqhuba khona, futhi umqoqi wayo ukhipha izinga eliphansi (0.1-0.3V) ； lapho ingxenye yomthunzi kudiski yesignali ijikeleza phakathi kwe-LED kanye ne-transistor ye-photoelectric, ukukhanya okukhishwe yi-LED akukwazi ukukhanya ku-transistor ye-photoelectric, lapho i-transistor ye-photoelectric icima khona, futhi umqoqi wayo ukhipha izinga eliphezulu (4.8-5.2V). Uma idiski yesignali ijikeleza njalo, imbobo edlulisa ukukhanya kanye nengxenye yomthunzi kuzodlula ngokushintshana phakathi kwe-LED kanye ne-transistor ye-photoelectric, futhi umqoqi we-transistor ye-photoelectric uzokhipha amazinga aphezulu naphansi ngokushintshana. Uma i-sensor shaft ijikeleza ne-crankshaft kanye ne-valve camshaft, imbobo edlulisa ukukhanya kanye nengxenye yomthunzi kudiski yesignali kuzodlula phakathi kwe-LED ne-photoelectric transistor, ukukhanya okukhishwe yi-LED kuzokhanya ngokushintshana ku-photoelectric transistor yejeneretha yesignali, futhi i-signal sensor izokhiqiza amasignali okushaya kwenhliziyo ahambisana nendawo ye-crankshaft kanye nendawo ye-valve camshaft.
Njengoba i-crankshaft ijikeleza kabili, inzwa yesignali ye-G izokhiqiza izimpawu ze-pulse eziyi-6. Inzwa yesignali ye-Ne izokhiqiza izimpawu ze-pulse eziyi-360. Ngoba i-interval arc yembobo edlulisa ukukhanya yesignali ye-G ingu-60. Kuwo wonke ama-degree angu-120 okujikeleza kwe-crankshaft, kukhiqizwa isignali ye-pulse. Ngakho-ke, isignali ye-G ivame ukubizwa ngokuthi isignali ye-120. Umklamo nokufakwa kuqinisekisa ukuthi isignali ye-120. ikhiqizwa ngu-70. (BTDC70.) ngaphambi kwesikhungo esiphezulu esifile sesilinda yenjini. Isignali ekhiqizwa ukuvulwa okungunxande okunohlangothi olude kancane olubanzi ihambelana no-70. ngaphambi kwesikhungo esiphezulu esifile sesilinda 1 senjini, ukuze i-ECU ikwazi ukulawula i-engeli yokusheshisa yokujova uphethiloli kanye ne-engeli yokusheshisa yokusha. Njengoba isikhala se-arc sembobo yokudlulisa ukukhanya yesignali ye-Ne singu-1. (Imbobo yokudlulisa ukukhanya ithatha u-0.5. kanti imbobo yomthunzi ithatha u-0.5.), kumjikelezo ngamunye wokushaya, amazinga aphezulu naphansi ngalinye lithatha i-1. i-engeli yokujikeleza kwe-crankshaft, kanye nezibonakaliso ezingu-360 zimelela ukujikeleza kwe-crankshaft okungu-720. Njalo ngamadigri angu-120. okujikeleza kwe-crankshaft, inzwa yesignali ye-G ikhiqiza isignali eyodwa, kanti inzwa yesignali ye-Ne ikhiqiza izimpawu ezingu-60.
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