Kuya kuba naliphi ifuthe emotweni ukuba isensa ye-camshaft yaphukile?
I-sensor ye-camshaft eyonakeleyo inokubangela ubunzima ekuqaliseni injini, ukungcangcazela ngexesha lokusebenza, amandla aphantsi, ukusetyenziswa kwepetroli okwandisiweyo, kwaye inokubangela i-alamu yesibane esingasebenzi kakuhle.
Ukungasebenzi kakuhle kwenjini yokuqalisa nokusebenza kwayo
Ubunzima ekuqaliseni nasekutshiseni okuphazamisayo: Emva kokuba i-sensor yonakele, i-ECU ayinakukwazi ukumisela ngokuchanekileyo imeko yesilinda nganye kunye nesigaba se-camshaft, nto leyo ekhokelela kwixesha lokutshiseni okuphazamisayo, elibonakala ngathi lifuna imizamo emininzi yokuqalisa, okanye nokubambezeleka kokuqala okanye ukungakwazi ukuqala. Kwiimeko ezinzima, ngexesha lenkqubo yokuqala, kunokubakho ukubuyiselwa kwe-crankshaft kunye ne-intake manifold flashback phenomena.
Ukuwohloka kokungasebenzi kakuhle kunye nokuzinza kokusebenza:
Ukungcangcazela okukhulu: Njengempawu yomlilo ongalunganga wenjini, ukungcangcazela kuyabonakala.
Ukuma rhoqo kwenjini ngexesha lokuqhuba: Ingakumbi xa uqhuba ushushu, imoto inokuma ngequbuliso ngelixa uqhuba okanye ufaka ipetroli.
Impendulo yokukhawulezisa kancinci: Emva kokunyathela i-accelerator, amandla aphumayo ayaphela, kwaye ngesiqhelo, isantya senjini kufuneka sidlule kwi-2500 rpm ukuze siphucuke.
Ukuwohloka Kokusebenza Kwamandla kunye Noqoqosho Lwamafutha
Ukwehla okukhulu kwamandla ombane: Ngenxa yokuba i-ECU ayifumani zimpawu zesigaba se-camshaft ezichanekileyo, ukufakwa kwepetroli kunye nexesha lokutsha akunakuvunyelaniswa nokusebenza kwesilinda, okubangela ubuthathaka benjini, ukukhawulezisa okucothayo, kunye nokuphendula okucothayo ngexesha lokunyuka okanye ukudlula. I-ECU yezinye iimodeli inokuthi inciphise isantya esiphezulu senjini ukukhusela injini.
Ukwanda kokusetyenziswa kwepetroli kunye nokukhupha umbane: Ulawulo lwe-ECU lokujova ipetroli aluchanekanga, lubangela ukujova ipetroli kakhulu okanye ukujova ipetroli ngendlela engacwangciswanga, kwaye ukusetyenziswa kwepetroli okulinganisiweyo kunokunyuka nge-15%-30%. Kwangaxeshanye, ukutsha okungaphelelanga kuya kubangela umsi omnyama ovela kumbhobho wokukhupha umbane, ivumba elibi lokukhupha umbane, kwaye kunokunyusa umthwalo kwi-sensor ye-oxygen kunye ne-catalytic converter eneendlela ezintathu, kunye nomngcipheko wokonakala xa usebenza ixesha elide.
Ukhuseleko lweNkqubo kunye neengozi ezinokubakho zoomatshini
Ukusebenza kwendlela yokukhusela iimpazamo: Isibane seenjini sihlala sivuliwe (sihlala sihambelana neekhowudi zempazamo ezifana ne-P0340), kwaye i-ECU iya kungena kwimodi, inciphise amandla okukhupha, kwaye inokukhubaza imisebenzi efana nexesha le-valve eguquguqukayo (VVT). Okwangoku, imoto inokuhamba imigama emifutshane kuphela, kodwa ukusebenza kwayo kuncitshisiwe kakhulu.
Iingozi zomonakalo onokubakho ngoomatshini:
Ukungalingani kwexesha lokutshisa: Kungabangela ukudubula, kwaye ekuhambeni kwexesha, kuya kubangela umonakalo kwisilinda, i-piston, kunye nezinye izinto.
Ukwanda kokuguguleka kwendlela yevalvu: I-ECU ayinakulawula ngokuchanekileyo isigaba sevalvu, nto leyo enokubangela ukuguguleka okukhulu kwezinto ezinxulumene nayo.
Kwiimeko ezinzima kakhulu apho i-sensor ye-crankshaft nayo ingaphumeleli, imoto inokungaphumeleli ngokupheleleyo ukuqala okanye ukuma ngexesha lokusebenza.
Idiski yesignali ifakwe phakathi kwe-diode ekhupha ukukhanya (i-LED) kunye ne-transistor ye-photoelectric (okanye i-photodiode). Xa umngxuma ohambisa ukukhanya kwidiski yesignali ujikeleza phakathi kwe-LED kunye ne-transistor ye-photoelectric, ukukhanya okuphuma kwi-LED kuya kukhanya kwi-transistor ye-photoelectric, apho i-transistor ye-photoelectric iqhuba khona, kwaye umqokeleli wayo ukhupha umgangatho ophantsi (0.1-0.3V) ； xa inxalenye yomthunzi kwidiski yesignali ijikeleza phakathi kwe-LED kunye ne-transistor ye-photoelectric, ukukhanya okuphuma kwi-LED akunakukhanyiswa kwi-transistor ye-photoelectric, apho i-transistor ye-photoelectric icima khona, kwaye umqokeleli wayo ukhupha umgangatho ophezulu (4.8-5.2V). Ukuba idiski yesignali ijikeleza rhoqo, umngxuma ohambisa ukukhanya kunye nenxalenye yomthunzi ziya kudlula ngokutshintshisana phakathi kwe-LED kunye ne-transistor ye-photoelectric, kwaye umqokeleli we-transistor ye-photoelectric uya kukhupha amazinga aphezulu naphantsi ngokutshintshisana. Xa i-sensor shaft ijikeleza nge-crankshaft kunye ne-valve camshaft, umngxuma ohambisa ukukhanya kunye nenxalenye yomthunzi kwi-signal disc ziya kudlula phakathi kwe-LED kunye ne-photoelectric transistor, ukukhanya okuphuma kwi-LED kuya kukhanya ngokutshintshiselanayo kwi-photoelectric transistor ye-signal generator, kwaye i-signal sensor iya kuvelisa i-pulse signals ehambelana nendawo ye-crankshaft kunye nendawo ye-valve camshaft.
Ekubeni i-crankshaft ijikeleza kabini ngokupheleleyo, i-sensor yesignali ye-G iya kuvelisa imiqondiso ye-pulse emi-6. I-sensor yesignali ye-Ne iya kuvelisa imiqondiso ye-pulse engama-360. Ngenxa yokuba i-arc yesithuba somngxuma ohambisa ukukhanya wesignali ye-G yi-60. Kwi-120 degrees nganye yokujikeleza kwe-crankshaft, kwenziwa isignali ye-pulse. Ke ngoko, isignali ye-G idla ngokubizwa ngokuba yisignali ye-120. Uyilo kunye nofakelo luqinisekisa ukuba isignali ye-120. iveliswa yi-70. (BTDC70.) ngaphambi kwesikhungo esiphezulu esifileyo sesilinda yenjini. Isignali eveliswa kukuvulwa okungxande okunecala elide kancinci elibanzi ihambelana ne-70. phambi kwesikhungo esiphezulu esifileyo sesilinda 1 senjini, ukuze i-ECU ikwazi ukulawula i-engile ye-induction ye-fuel injection kunye ne-engile ye-inflating advance. Ekubeni isithuba se-arc somngxuma wokudlulisa ukukhanya kwisignali ye-Ne yi-1. (Umngxuma wokudlulisa ukukhanya uthatha i-0.5. kwaye umngxuma womthunzi uthatha i-0.5.), kumjikelo ngamnye we-pulse, amanqanaba aphezulu naphantsi ngalinye lithatha i-1. i-engile yokujikeleza kwe-crankshaft, kunye nemiqondiso engama-360 imele ukujikeleza kwe-crankshaft engama-720. Rhoqo nge-120. degrees yokujikeleza kwe-crankshaft, i-sensor yesignali ye-G ivelisa isignali enye, kwaye i-sensor yesignali ye-Ne ivelisa imiqondiso engama-60.
Ukuba ufuna ukwazi okungakumbi, qhubeka ufunda amanye amanqaku kule sayithi!
Nceda usitsalele umnxeba ukuba ufuna iimveliso ezinjalo.
Zhuo Meng Shanghai Auto Co., Ltd. uzimisele ukuthengisa iMG&MAXUSiinxalenye zeemoto zamkelekile ukuthenga.
