Yintoni imitha yokuhamba komoya yemoto?
Imitha yokuhamba komoya yeemoto, eyaziwa ngokuba yi-air flow sensor okanye i-intake air flow sensor, sisixhobo esibalulekileyo kwinkqubo yokufaka umoya kwi-injini ye-elektroniki yokufaka amafutha. Umsebenzi wayo ophambili kukulinganisa ukuhamba komoya okungena kwi-injini nokuwuguqula ube sisignali yombane ethunyelwa kwiyunithi yokulawula injini (ECU) ukuze kubalwe umthamo we-intake fuel.
Indawo yokufakelwa kunye nomgaqo osisiseko: Imitha yokuhamba komoya idla ngokufakwa kumbhobho wokungenisa umoya phakathi kwesihluzi somoya kunye nomzimba we-throttle. Ngokubona ubunzima okanye umthamo womoya ongena kwiisilinda ngexesha leyunithi, inika i-ECU idatha esisiseko yokubala umthamo wokufakwa kwepetroli, ukuqinisekisa umlinganiselo ochanekileyo womoya-mafutha kunye nokwenza ngcono ukusebenza kwenjini.
Imo yokusebenza kunye nohlulo: Iintlobo eziphambili ziquka uhlobo lweblade (apho iipleyiti zephiko zijikeleza ngokuphendula ukuhamba komoya ukuze kulungiswe isignali yokuphuma koqhagamshelwano, ngesakhiwo esilula kodwa impendulo ecothayo), kunye nohlobo lwe-vortex yeKarman (kusetyenziswa umgaqo wokuba i-vertex frequency eguquguqukayo eveliswa lulwelo oluhamba phezu kwento esisilinda ilingana nesantya sokuhamba, yahlulwe kwiintlobo ze-optical kunye ne-ultrasonic, ngokuchaneka okuphezulu kwaye akukho nxalenye ishukumayo). Uyilo olwahlukileyo lujolise ekulinganiseni ukuchaneka, isantya sokuphendula, kunye nokulahleka koxinzelelo.
Ukubaluleka kunye nempembelelo yeziphene: Imitha yokuhamba komoya ibalulekile ekufezekiseni ulawulo oluvaliweyo, oluchaphazela ngqo amandla enjini, ukonga amafutha, kunye nokusebenza kokukhupha umoya. Ukuba iyasilela (njengemiqondiso engaqhelekanga okanye ukungasebenzi ngokupheleleyo), inokubangela iingxaki ezifana nokungazinzi kokungasebenzi, ukukhawulezisa okungekho semgangathweni, ukusetyenziswa kakhulu kwamafutha, okanye ukukhutshwa komoya okugqithisileyo.
Umsebenzi ophambili wemitha yokuhamba komoya wemoto kukulinganisa ukungena komoya enjinini ngexesha langempela nokuguqula idatha ibe yisignali yombane ukuze idluliselwe kwikhompyutha yesithuthi (ECU), ukuze kulawulwe ngokuchanekileyo umthamo wokufakwa kwamafutha, kuqinisekiswe umlinganiselo ofanelekileyo womxube wamafutha. Oku kulandelayo yinkcazo eneenkcukacha ngemisebenzi ethile kunye nokusetyenziswa kwayo:
Umsebenzi oyintloko wemitha yokuhamba komoya
Ukulinganiswa komthamo womoya ongenayo: Ifakwe kumbhobho wokungenisa umoya phakathi kwesihluzo somoya kunye nomzimba we-throttle, ibona ngokuthe ngqo umthamo okanye ubunzima bomoya ongena enjinini.
Ukuguqulwa kwesignali: Kuguqula idatha yokuhamba komoya ibe yisignali yombane (njengotshintsho lwangoku), kuyithumela kwi-ECU njengesiseko esiphambili sokubala i-fuel injection.
Impendulo enamandla: Iphendula ngokukhawuleza (≤10ms) kwiimeko ezahlukeneyo zokusebenza ezifana nokungaqhubi kakuhle kunye nokukhawulezisa, ukuqinisekisa idatha yexesha langempela.
Iindlela eziphambili zokusetyenziswa
Ukuphucula ukusebenza kakuhle kwepetroli:
I-ECU ibala umthamo wokufakwa kwepetroli ngokusekelwe kwisignali yokuhamba komoya, ithintela ukuxubana kwepetroli okutyebileyo (ukuchitha ipetroli) okanye okuncinci kakhulu (amandla angonelanga), nto leyo ephucula ukonga kwepetroli. Umzekelo: ngexesha lokuqhuba ngesantya esiphezulu, ihambelana ngokuchanekileyo nomlinganiselo womoya-namafutha ukuze kuncitshiswe ukusetyenziswa kwepetroli.
Ukuqinisekisa ukusebenza kakuhle kwenjini:
Igcina amandla ephumayo ezinzile, ithintela ukuguquguquka okungasebenzi, ubuthathaka bokukhawulezisa, okanye ukukhutshwa komsi omnyama.
Iziphene (ezifana neempawu ezingaqhelekanga) ziya kubangela ikhowudi yempazamo (umz., P0100) kwi-ECU, nto leyo ebangela ukusebenza okungaqhelekanga kwenjini.
Ukuxhasa ukukhutshwa komoya ongcolileyo:
Ilawula ngokuchanekileyo ukutsha ukuze kuncitshiswe ukukhutshwa kwegesi okuyingozi (njenge-carbon monoxide).
Kutheni le nto ibaluleke kakhulu
Ezinye iindlela ezingasebenziyo: Ukuba imitha yokuhamba komoya yonakele, i-ECU ayinakufumana idatha yomthamo womoya ongenayo kwaye inokuxhomekeka kuphela kwiinkqubo zogcino (ezifana nokuqikelela ngokusekelwe kuxinzelelo lokungenisa), kodwa ukuchaneka kwehla ngaphezulu kwe-30%, okunokubangela iimpazamo.
Ukusebenzisana nezinzwa ezininzi: Isebenza kunye nezinzwa zobushushu bamanzi, izinzwa zeoksijini, njl.njl., ukulungisa ngokupheleleyo icebo lokujova ipetroli.
Imitha yokuhamba komoya sisiva-luvo esibalulekileyo kwinkqubo yolawulo lwenjini, esinoxanduva lokulinganisa ukungena komoya enjinini nokuguqula idatha ibe sisignali yombane ukuze idluliselwe kwiyunithi yolawulo lwe-elektroniki (ECU) ukuze kubalwe ngokuchanekileyo ixesha lokufakwa kwepetroli kunye nexesha lokutsha.
Xa imitha yokuhamba komoya ingaphumeleli, iya kubangela ukungalingani komlinganiselo womoya-mafutha, nto leyo ekhokelela kuthotho lweengxaki zokusebenza kwesithuthi.
Iimpawu eziqhelekileyo zokuphazamiseka kwengqondo ziquka:
Ukungazinzi okungasebenziyo kunye nokukhawulezisa okungekho semgangathweni: Ukuphambuka kwisignali yemitha yokuhamba komoya kubangela ukuba i-ECU ingakwazi ukulungisa ngokuchanekileyo umthamo wokujova ipetroli, nto leyo ebangela ukuba injini inyikime xa ingasebenzi, isantya esitshintshatshintshayo, okanye ihlale ingasebenzi; ngexesha lokukhawulezisa, amandla aphuma kancinci, kunye nempendulo ecothayo. Ukusetyenziswa kwepetroli okwandileyo kunye nokukhutshwa kwe-exhaust okungaqhelekanga: Umthamo wokujova ipetroli ongahambelaniyo kunye nomthamo wokungenisa ipetroli okwenyani kunokubangela umxube otyebileyo kakhulu kunye nokutsha kwepetroli okungaphelelanga, okubonakala njengokwanda okukhulu kokusetyenziswa kwepetroli, umsi omnyama ovela kumbhobho wokujova, kunye nokwanda kokukhutshwa kwezinto eziyingozi.
Isibane sempazamo yenjini siyakhanya: Ukuba i-ECU ifumanisa imiqondiso engaqhelekanga (efana neekhowudi zempazamo P0100-P0103), iya kubangela isibane sesilumkiso, nto leyo ebonisa ukungasebenzi kakuhle kwesensor.
Ubunzima bokuqalisa kunye neengxaki zokuqhuba ngesantya esiphezulu: Ukuqalisa ngokubandayo okanye ukufudumala kunokubangela ubunzima ekuqaliseni ngenxa yomlinganiselo ongafanelekanga womxube; kwezinye iimodeli, ukukhupha isignali engachanekanga kwisantya esingaphezulu kwe-120 km/h kuya kuyenza mandundu imeko, okubangela ukushukuma kwenjini okanye ukuma, okuchaphazela ukhuseleko ngexesha lokuqhuba ngesantya esiphezulu.
Izizathu zempazamo kunye nemiphumo enokubakho: Ukungaphumeleli kwemitha yokuhamba komoya kubangelwa kakhulu kukuguguleka kwezinto zesensor, ukunqongophala kwesekethe, okanye ukuvuza kokungenisa. Ukungayinaki le ngxaki ixesha elide kunokukhokelela kwiidiphozithi zekhabhoni kwigumbi lokutsha, umonakalo kwi-catalytic converter eneendlela ezintathu, kunye nezinye iingxaki zetyathanga, ukuqinisa ukuguguleka kwenjini kunye nokunciphisa ukuthembeka ngokubanzi.
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.
