Indima yesenzwa yesikhundla se-Camshaft.
Indima yenzwa yesikhundla se-camshaft yezimoto:
1, inzwa yesikhundla se-camshaft iwukuqoqa isignali ye-Angle eguquguqukayo ye-camshaft, bese ifaka iyunithi yokulawula kagesi (ECU), ukuze inqume isikhathi sokuthungela nesikhathi sokujova, ukuze kutholakale ukungenisa kanye nokukhipha umoya;
2, ukuze kwenziwe ukulawula ukujova uphethiloli ngokulandelana, ukulawula isikhathi sokusha kanye nokulawula ukucisha. Ngaphezu kwalokho, isignali yesikhundla se-camshaft isetshenziselwa ukukhomba umzuzu wokuqala wokusha lapho injini iqala. Ngenxa yokuthi inzwa yesikhundla se-camshaft ingakhomba ukuthi iyiphi i-piston yesilinda esezofika ku-TDC, ibizwa ngokuthi inzwa yokuhlonza isilinda;
3, isakhiwo kanye nomgomo wokusebenza we-camshaft position sensor kanye ne-crankshaft position sensor kuyafana ngokuyisisekelo, futhi kuvame ukufakwa ndawonye, kodwa indawo yokufaka yemodeli ngayinye ihlukile, kodwa kumele ifakwe endaweni yobudlelwano obuqondile bokudlulisela ne-crankshaft, njenge-crankshaft, i-camshaft, i-flywheel noma i-distributor;
4, sebenzisa nje inzwa ye-crankshaft. Uhlelo lwe-ECU lunenqubo ekhethekile yokuhlukanisa ukuthungela, ukuhlukanisa ukulandelana kokuthungela kwesilinda, kuhlukile endleleni yokusebenzisa izinzwa ezimbili okungukuthi, iphuzu elidumile "inombolo", i-crankshaft isebenza "1-3-4-2" ngenani elinqunyiwe lokuzungeza. Ngakho uhlelo "lungabala" amasilinda ahlukene okudubula ku-Angle efanayo ye-crankshaft, ngakho-ke inzwa eyodwa yanele.
Inzwa yesikhundla se-Camshaft yaziwa nangokuthi inzwa yokuhlonza isilinda, ukuze ihlukanise nenzwa yesikhundla se-crankshaft (CPS), inzwa yesikhundla se-camshaft ngokuvamile imelelwa yi-CIS. Umsebenzi wenzwa yesikhundla se-camshaft ukuqoqa isignali yesikhundla se-valve camshaft bese uyifaka ku-ECU, ukuze i-ECU ikwazi ukuhlonza isikhungo esiphezulu sokucindezela kwe-cylinder 1, ukuze yenze ukulawula okulandelanayo kokujova uphethiloli, ukulawula isikhathi sokusha kanye nokulawula ukucisha ifulegi. Ngaphezu kwalokho, isignali yesikhundla se-camshaft isetshenziselwa ukuhlonza umzuzu wokuqala wokusha lapho injini iqala. Ngenxa yokuthi inzwa yesikhundla se-camshaft ingahlonza ukuthi iyiphi i-piston yesilinda esezofika ku-TDC, ibizwa ngokuthi inzwa yokuhlonza isilinda.
Ukusebenza kabi kwenzwa ye-Camshaft
01 Ubunzima bokuqalisa imoto
Ubunzima bokuqalisa imoto buwukubonakaliswa okusobala kwephutha lenzwa ye-camshaft. Inzwa yesikhundla se-camshaft inquma ukulandelana kokusha kwenjini. Uma yehluleka, ukulandelana kokusha kuyaphuma endleleni, okwenza injini iqale ngobunzima futhi ngezinye izikhathi ingaqali nhlobo. Lesi simo asigcini nje ngokuphazamisa ukusebenza kokuqala kwemoto, kodwa futhi singadala umonakalo owengeziwe enjinini. Ngakho-ke, uma sekutholakale ukuthi imoto kunzima ukuyiqala, kufanele uhlole ukuthi inzwa ye-camshaft isebenza kahle ngokushesha okukhulu.
02 Ubuthakathaka bokusheshisa
Ukungakwazi kwemoto ukusheshisa kuwukubonakaliswa okusobala komonakalo wesenzwa ye-camshaft. Uma isenzwa ye-camshaft yehluleka, i-ECU ayikwazi ukubona ngokunembile ushintsho lwesikhundla se-camshaft. Lokhu kuzothinta izinhlelo zokungenisa kanye nezokukhipha injini, okuholela ekunciphiseni kokungenisa kanye nokukhipha kwesistimu yokukhipha eseduze. Ngenxa yokuthi lezi zingxenye ezibalulekile azisebenzi kahle, imoto izokhathala lapho isheshisa, ikakhulukazi lapho ijubane lingaphansi kuka-2500 RPM.
03 Ukusetshenziswa kukaphethiloli okwandisiwe
Ukusetshenziswa kukaphethiloli okweqile kuyisibonakaliso esisobala sokwehluleka kwenzwa ye-camshaft. Uma inzwa ye-camshaft inephutha, uhlelo lukaphethiloli olusebenzisa ikhompyutha lwemoto lungaba nesiphithiphithi, okubangela ukuthi i-nozzle noma i-injector ifuthe uphethiloli ngendlela engafanele. Lesi simo sokujova esingahlelekile asigcini nje ngokwandisa ukusetshenziswa kukaphethiloli kwemoto, kodwa futhi singabangela ijubane lenjini ukuthi lingakwazi ukuthuthuka, futhi imoto ibonakale ibuthakathaka. Ngakho-ke, uma kutholakala ukwanda okungavamile kokusetshenziswa kukaphethiloli kwemoto, kungaba uphawu lokuthi inzwa ye-camshaft inephutha.
04 Isibani semoto esingenaphutha
Isibani semoto esinamaphutha ngokuvamile sisho ukuthi izinzwa eziningi zingase zingasebenzi kahle. Ikakhulukazi uma inzwa yesikhundla se-camshaft yonakele, lesi simo sisobala kakhulu. Izinzwa ze-camshaft zivame ukuba izinzwa ze-Hall ezinezintambo ezintathu, okuhlanganisa izintambo zamandla ze-12v noma ze-5v, izintambo zesignali kanye nezintambo zokuxhuma. Lapho ipulaki ikhishwa futhi injini iqaliswa, uma kungekho ukuphuma kwe-voltage yesignali phakathi komugqa wesignali kanye nomugqa oyisisekelo, lokhu kuvame ukusho ukuthi inzwa yonakele. Kulesi simo, isibani semoto esinamaphutha cishe sizokhanya ukukhumbuza umshayeli ukuthi enze ukuhlolwa okuningiliziwe.
05 Umzimba uyathuthumela ngendlela engavamile
Ukuqhaqhazela komzimba okungavamile kuwukubonakaliswa okusobala kokwehluleka kwenzwa ye-camshaft. Uma kunenkinga ngenzwa ye-camshaft, iyunithi yokulawula injini yemoto ingase ingakwazi ukufunda ngokunembile isimo sokusebenza kwenjini, okuholela ekusebenzeni kwenjini okungazinzile kanye nokuqhaqhazela komzimba okungavamile. Lokhu kuqhaqhazela kuvame ukugqama kakhulu lapho imoto isheshisa noma yehlisa ijubane. Ukuze kuqinisekiswe ukuphepha kokushayela, uma sekutholakale izinkinga ezinjalo, ukuhlolwa kochwepheshe kanye nokugcinwa kufanele kwenziwe ngesikhathi.
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