Indima yenzwa yendawo ye-Camshaft.
Iqhaza le-automotive camshaft position sensor:
I-1, inzwa yesikhundla se-camshaft iwukuqoqa isignali ye-Angle eguqukayo ye-camshaft, bese ifaka iyunithi yokulawula i-elekthronikhi (ECU), ukuze kunqunywe isikhathi sokuthungela nesikhathi somjovo, ngakho-ke ukungenisa nokukhipha kuyatholakala;
2, ukuze kuqhutshwe ukulawulwa komjovo kaphethiloli okulandelanayo, ukulawula isikhathi sokuthungela kanye nokulawula ukuwohloka komlilo. Ngaphezu kwalokho, isignali yendawo ye-camshaft isetshenziselwa ukukhomba isikhathi sokuqala sokuthungela lapho injini iqala. Ngenxa yokuthi inzwa yokuma kwe-camshaft ingakwazi ukubona ukuthi iyiphi i-cylinder piston esezofika ku-TDC, ibizwa ngokuthi inzwa yokuhlonza isilinda;
I-3, ukwakheka kanye nesimiso sokusebenza se-camshaft position sensor kanye ne-crankshaft position sensor ngokuyisisekelo kuyafana, futhi kuvame ukufakwa ndawonye, kodwa indawo yokufaka yemodeli ngayinye ihlukile, kodwa kufanele ifakwe endaweni yobudlelwano bokudlulisa obunembile ne i-crankshaft, njenge-crankshaft, i-camshaft, i-flywheel noma i-distributor;
4, vele usebenzise uhlelo lwe-ECU lwe-crankshaft sensor lunenqubo ekhethekile yokuhlukanisa ukushisa, ukuhlukanisa ukulandelana kokushisa kwe-cylinder, kuhlukile endleleni yokusebenzisa izinzwa ezimbili okusho ukuthi, iphuzu elidumile elithi "count", i-crankshaft. isebenzisa "1-3-4-2" ngenani elinqunyiwe lama-revolution. Ngakho uhlelo lungakwazi "ukubala" amasilinda okudubula ahlukene ku-Crankshaft Angle efanayo, ngakho inzwa eyodwa yanele.
I-Camshaft position sensor yaziwa nangokuthi inzwa yokuhlonza isilinda, ukuze kuhlukaniseke ku-crankshaft position sensor (CPS), inzwa ye-camshaft position ivamise ukumelwa yi-CIS. Umsebenzi we-camshaft position sensor ukuqoqa isignali yendawo ye-valve camshaft bese uyifaka ku-ECU, ukuze i-ECU ikwazi ukuhlonza isikhungo esiphezulu sokucindezelwa kwesilinda 1, ukuze yenze ukulawulwa komjovo kaphethiloli okulandelanayo, isikhathi sokuthungela. isilawuli kanye nokwehlisa amafulegi. Ngaphezu kwalokho, isignali yendawo ye-camshaft isetshenziselwa ukukhomba isikhathi sokuqala sokuthungela lapho injini iqala. Ngenxa yokuthi inzwa yokuma kwe-camshaft ingakwazi ukubona ukuthi iyiphi i-cylinder piston esezofika ku-TDC, ibizwa ngokuthi inzwa yokuhlonza isilinda.
Ukusebenza kabi kwenzwa ye-Camshaft
01 Ubunzima bokuqalisa imoto
Ubunzima bokuqalisa imoto kuwukubonakaliswa okusobala kwephutha lenzwa ye-camshaft. I-camshaft position sensor inquma ukulandelana kokushisa kwenjini. Uma ihluleka, ukulandelana kokushisa kuyaphuma ekuhlelekeni, okwenza injini iqale kanzima futhi ngezinye izikhathi ingaqali nhlobo. Lesi simo asithinti kuphela ukusebenza kokuqala kwemoto, kodwa futhi singadala umonakalo owengeziwe enjinini. Ngakho-ke, uma kutholakala ukuthi imoto inzima ukuyiqala, kufanele uhlole ukuthi inzwa ye-camshaft isebenza kahle ngokushesha ngangokunokwenzeka.
02 Ubuthakathaka bokusheshisa
Ukungakwazi kwemoto ukusheshisa kuwukubonakaliswa okusobala komonakalo wezinzwa ze-camshaft. Lapho inzwa ye-camshaft ihluleka, i-ECU ayikwazi ukubona ngokunembile ushintsho lwesikhundla se-camshaft. Lokhu kuzothinta amasistimu wokudonsa kanye nokukhipha umoya wenjini, okuzoholela ekuncipheni kokuthatha kanye nokuphuma kwesistimu eseduze ne-exhaust. Ngenxa yokuthi lezi zingxenye ezibalulekile azisebenzi kahle, imoto izobhekana nokukhathala lapho ijubane, ikakhulukazi uma ijubane lingaphansi kuka-2500 RPM.
03 Ukwenyuka kokusetshenziswa kukaphethiloli
Ukwenyuka kokusetshenziswa kukaphethiloli kuwukubonakaliswa okusobala kokuhluleka kwenzwa ye-camshaft. Uma inzwa ye-camshaft inephutha, isistimu kaphethiloli yekhompuyutha yemoto ingaba nesiphithiphithi, okubangele ukuthi umlomo wombhobho noma umjovo ufafaze uphethiloli ngaphandle kokuhleleka. Lesi simo somjovo esiphazamisekile asigcini nje ngokunyusa ukusetshenziswa kukaphethiloli wemoto, kodwa futhi singabangela ijubane lenjini ukuba lingakwazi ukuthuthuka, futhi imoto ibonakale ibuthakathaka. Ngakho-ke, uma ukwanda okungavamile kokusetshenziswa kukaphethiloli wemoto kutholakala, kungase kube isignali yokuthi inzwa ye-camshaft inephutha.
04 Isibani esinephutha lemoto
Isibani esinephutha lemoto ngokuvamile sisho ukuthi izinzwa eziningi kungenzeka zingasebenzi. Ikakhulukazi lapho inzwa yendawo ye-camshaft ilimele, lesi simo sibonakala ikakhulukazi. Izinzwa ze-Camshaft ngokuvamile ziyizinzwa zeHholo ezinezintambo ezintathu, okuhlanganisa izintambo zamandla ezingu-12v noma ezingu-5v, izintambo zesiginali nezintambo ezixhaphayo. Uma ipulaki ikhishwa futhi injini iqalwa, uma kungekho okukhipha amandla esignali phakathi komugqa wesignali nomugqa wesisekelo, lokhu ngokuvamile kusho ukuthi inzwa ilimele. Kulesi simo, ukukhanya kwemoto kungase kuqhamuke ukuze kukhumbuze umshayeli ukuthi enze ukuhlola okuningiliziwe.
05 Umzimba uyavevezela ngendlela engavamile
Ukuthuthumela komzimba okungavamile kuwukubonakaliswa okusobala kokuhluleka kwenzwa ye-camshaft. Uma kunenkinga nge-sensor ye-camshaft, iyunithi yokulawula injini yemoto ingase ingakwazi ukufunda kahle isimo sokusebenza kwenjini, okuholela ekusebenzeni kwenjini okungazinzile kanye nokuzamazama okungavamile komzimba. Le jita ivamise ukugqama kakhulu lapho imoto isheshisa noma yehla. Ukuze kuqinisekiswe ukuphepha kokushayela, uma izinkinga ezinjalo sezitholakele, ukuhlolwa nokugcinwa kochwepheshe kufanele kwenziwe ngesikhathi.
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