Inzwa yoxinzelelo lokungenisa: "Iliso ledatha" eliphambili lenjini
I-intake pressure sensor (efinyeziweyo njenge-MAP sensor) yinxalenye ebalulekileyo yenkqubo ye-D-type fuel injection kwiinjini ze-elektroniki fuel injection, esebenza njenge-"pressure detective" yenjini. Ihlala ijonga utshintsho loxinzelelo kwinkqubo ye-intake kwaye ibonelela ngesiseko esibalulekileyo sokwenza izigqibo kwiyunithi yokulawula injini (ECU).
Iqhagamshelwe kwi-input manifold ngetyhubhu ye-vacuum kwaye inokubamba ngokuchanekileyo ukuguquguquka koxinzelelo kwi-input manifold phantsi kweemeko ezahlukeneyo zokusebenza, iguqule ibe ziimpawu zombane kwaye izithumele kwi-ECU. Ngexesha lokukhawuleziswa kwesithuthi, uxinzelelo lokungenisa luyanda, kwaye isensa ithumela ngokukhawuleza isignali, ethi emva koko i-ECU yonyuse umthamo wokufaka amafutha ukuze inike amandla aneleyo enjini; ngexesha lokuncitshiswa kwesantya, uxinzelelo lokungenisa luyancipha, kwaye i-ECU inciphisa ukufakwa kwamafutha, iphephe inkunkuma yamafutha kwaye iphucule ukonga kwamafutha.
Inokunceda i-ECU ekulungiseni ixesha lokutsha, ivumele umxube ukuba utshise ngokupheleleyo, ifumane ibhalansi efanelekileyo phakathi kokuphuma kwamandla kunye nolawulo lokukhupha umbane. Kwiinjini ezineenkqubo zokulawula iivalvu ze-elektroniki, isenzi soxinzelelo lokungenisa singasebenza njengepharamitha yokuxhasa imiqondiso yomthwalo, inceda ekulungiseni ixesha lokuvula kwevalvu yokungenisa kunye nokwenza ngcono ukusebenza kwenjini.
Isilumkiso Sokusilela: "Isilumkiso Sempilo" seNjini
Ukuba isivamvo soxinzelelo lokungenisa siyasilela, ibhalansi yokusebenza kwenjini iya kuphazamiseka, nto leyo ebangela uthotho lweempawu ezingaqhelekanga, nto leyo ebeka iingozi ekusebenzeni kwesithuthi kunye nokhuseleko lokuqhuba.
Ukungaphumeleli kwe-sensor yokungazinzi kokuqala kunye nokungenzi nto kunokubangela ukuba i-ECU ingakwazi ukumisela ngokuchanekileyo umthamo wokungenisa, nto leyo ebangela ukungalingani phakathi komthamo wokufaka ipetroli kunye nomthamo wokungenisa. Ngexesha lokuqalisa okubandayo, injini inokufuna imizamo emininzi yokuqalisa ngempumelelo, kwaye iimpawu zinokuphucuka kancinci emva kokufudumala, kodwa isenokuziva ivaliwe ngoko nangoko emva kokuqalisa. Ngexesha lokungasebenzi, isantya senjini siyatshintshatshintsha kakhulu phakathi kwe-800-1000 rpm, nokuba ifumana ukungcangcazela kunye nokuma, okufana nokuphoswa kwesilinda, kodwa ukujonga iiplagi ze-spark kunye neekhoyili zokuvutha kubonisa iziphumo eziqhelekileyo, okunokwenzeka ukuba kubangelwa kukushukuma kwesignali^.
Ukungalingani kwamandla kunye nokusetyenziswa kwepetroli Ngexesha lokukhawulezisa, isantya senjini siyanda kodwa isantya sesithuthi siyanda kancinci, sinika "umvakalelo wokuba asisebenzi kakuhle", kunye nempendulo yamandla ebambezeleka kakhulu. Ukusebenza kwamandla kwezinye iimodeli ze-1.6L kunokuba kubi ngakumbi kunokweemodeli ze-1.0L. Oku kungenxa yokuba isensa ayinakuphendula ngokukhawuleza utshintsho kuxinzelelo lokungenisa emva kokuba i-throttle ivuliwe, kwaye ukufakwa kwepetroli ye-ECU kuyalibaziseka, okubangela ukuba kubekho umsantsa wamandla. Kwangaxeshanye, impazamo inokubangela ukuba i-ECU ihlulele kakubi umthamo wokungenisa, okubangela ukungalingani koxinzelelo lomxube, nokuba kutyebile kakhulu okubangela umsi omnyama ovela kumbhobho wokukhupha umoya kunye nokutsha okungaphelelanga, okanye ukungabi namandla kakhulu okubangela amandla angonelanga. Kuzo zombini iimeko, ukusetyenziswa kwepetroli kuya kwanda kakhulu, kwaye ukusetyenziswa kwepetroli kwezinye izithuthi kunokunyuka ukusuka kwi-8L/100km ukuya kwi-12L/100km^.
Ukukhanya kweSibane esingalunganga kunye neengozi ezinokubakho Xa ukuphambuka kwesignali yesensa kudlula umda, isibane sempazamo yenjini (i-MIL) kwideshibhodi siya kukhanyisa. Kusetyenziswa isixhobo sokuxilonga i-OBD, iikhowudi ezifana ne-P0105 (ukusilela kwesekethe yesensa) kunye ne-P0106 (isignali engenangqondo) zihlala zifundwa. Malunga nama-60% eempazamo zibangelwa kukonakala kwesensa, kwaye ama-40% abangelwa ziingxaki zocingo. Ukungazinaki ezi mpawu kunokukhokelela kwiimpazamo ezincinci eziguquka zibe ziingxaki ezinkulu, kwaye kwiimeko ezinzima, imoto inokuma ngequbuliso ngelixa iqhuba, ingakumbi ngexesha lokucothisa umbane okanye ukutshintsha igiya, nto leyo ebangela iingozi ezinkulu zokhuseleko^.
Impazamo yokulandelela: "Isibetho" esibangelwa zizinto ezininzi
Ukungaphumeleli kwe-intake pressure sensor akubangelwa yinto enye kodwa kubangelwa ziingxaki ezininzi ezifana ne-sensor ngokwayo, i-wiring, kunye nee-vacuum hoses.
Ukwaphuka kwesekethe yangaphakathi okanye i-short circuit kwi-sensor kuya kuthintela isignali yoxinzelelo ekuguqulweni nasekudluliselweni ngokuqhelekileyo, njengokunqunyulwa kwetshaneli kwisikhululo sokudlulisa ulwazi, kwaye i-ECU ayizukufumana idatha esebenzayo^.
Imiqondiso yokukhupha engaqhelekanga nayo yimpazamo eqhelekileyo. Ngokwesiqhelo, isignali kufuneka itshintshe ngononophelo nge-intake manifold vacuum, kwaye ukuba isignali "isemva", i-ECU iya kulungisa i-fuel injection ngokusekelwe kulwazi olungachanekanga, nto leyo ebangela ukuba ukusebenza kwenjini kungabi ngendlela engaqhelekanga. Ngaphezu koko, ukuba ipayipi ye-vacuum edibanisa i-intake pressure sensor kumbhobho we-intake iyavaleka okanye ivuza, iya kuthintela i-sensor ukuba ingayiva i-pressure signal echanekileyo, kanye njengokuqhekeka "kwebhulorho" kwaye ukuhanjiswa kolwazi kuphazamiseke.
Ukuxilongwa ngokuchanekileyo: Buyisela umbono weSensor
Xa ujongene nokusilela kwesensor yoxinzelelo lokungenisa, la manyathelo alandelayo anokuthathwa ukuze kulungiswe ngokuchanekileyo: Okokuqala, sebenzisa isixhobo sokuxilonga ukuze ufunde ikhowudi yempazamo kwaye umisele kwangaphambili icala lempazamo. Ukuba ikhowudi yempazamo enxulumene nesensor ibonisiwe, jonga ukuba ipayipi ye-vacuum ivalekile okanye iyavuza na, kwaye nokuba intambo yonakele okanye ayinanxibelelwano luhle. Okwesibini, yenza uvavanyo lokusebenza kwisensor, khupha iplagi yesensor, vula iswitshi yokutsha, kwaye ulinganise i-voltage phakathi kwe-terminal ye-VCC kunye ne-terminal ye-E2 kwiplagi. Ngokwesiqhelo, kufuneka ibe phakathi kwe-4.5 kunye ne-5.5V. Ukuba i-voltage ayiqhelekanga, jonga i-wiring ukusuka kwi-ECU ukuya kwisensor okanye kwi-ECU ngokwayo. Okokugqibela, sebenzisa indlela yokutshintsha. Tshintsha i-sensor ekrokrelwayo enempazamo ngeyeqhelekileyo. Ukuba impazamo iyanyamalala, kunokuqinisekiswa ukuba i-sensor yonakele.
Nangona isenzi soxinzelelo lokungenisa umoya sincinci, sibalulekile ekusebenzeni okuzinzileyo kwenjini. Ukuqonda umsebenzi wayo, iimpawu zempazamo, kunye neendlela zokuxilonga kunokunceda abanini bemoto ukuba babone iingxaki ngexesha, baphephe iimpazamo ezincinci ezibangela ilahleko enkulu kwaye bagcine injini ikwimeko entle ngamaxesha onke.
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Zhuo Meng Shanghai Auto Co., Ltd. uzimisele ukuthengisa iMG&MAXUSiinxalenye zeemoto zamkelekile ukuthenga.
