Kutheni le nto kufuneka sifunde umqondiso we-clutter kwi-waveform ye-oxygen sensor?

Oku kungenxa yokuba i-clutter inokubangelwa kukusebenza okuphantsi kokutsha. Ngethuba nje inkqubo yokunyuka kwe-up-flow ingekho kwimeko yokusebenza echanekileyo, i-catalyst ayikwazi ukuvavanywa ngokuchanekileyo. I-clutter ye-oxygen sensor waveform inokulumkisa ukwehla kokusebenza kwe-cylinder ye-injini nganye. Ngeli xesha, ukuxilongwa kwegesi yokukhupha kuyona kubaluleke kakhulu. Ngenxa yokuba inokufumanisa ukuba ukuguqulwa kokusebenza kwe-catalyst kuyancipha kwaye ukusebenza kweesilinda ngabanye kuncipha. Iimpawu ze-clutter zikwathintela ukusebenza okuqhelekileyo komlawuli wenkqubo yokulawula impendulo ye-fuel (inkqubo yempendulo kwikhompyutheni yokulawula injini iyaqhuba). "Umlawuli wenkqubo yokulawula impendulo ye-fuel" ubhekisela kwinkqubo yesofthiwe esebenzayo (ebizwa ngokuba yi "feedback controller"), eyiprogram efumana umqondiso we-voltage ye-oxygen sensor kwaye ibala i-injection ye-fuel echanekileyo ngokukhawuleza okanye umyalelo wokulawula umxube. Ngokuqhelekileyo, inkqubo yokulawula impendulo ayenzelwanga ukuphelisa ngokufanelekileyo i-frequency ye-oxygen sensor signals eyenziwe ngenxa yokusebenza kwenkqubo engaqhelekanga kunye nemiyalelo yokulawula amafutha. Isiphithiphithi sophawu lokuguquguquka kwesantya esiphezulu sinokwenza umlawuli wengxelo aphulukane nolawulo oluchanekileyo okanye "isingqisho sempendulo". Kukho iziphumo ezininzi apha. Okokuqala, xa ukuchaneka kokusebenza komlawuli wempendulo kuchaphazelekayo, umlinganiselo womxube we-fuel uya kudlula ifestile ye-catalyst, eya kuchaphazela ukusebenza kakuhle komguquli kunye nokukhutshwa kokukhutshwa. Okwesibini, ukusebenza kwe-injini kuya kuchaphazeleka. I-Clutter ingaba ngumqondiso ocacileyo wokuba igesi ephuma ngaphandle kokulawula ingena kwi-catalyst. Kudla ngokufunyaniswa ukuba xa i-clutter ikhona, i-exhaust gas engena kwi-catalyst ayinayo umlinganiselo ochanekileyo we-air-fuel. Kubaluleke kakhulu ukuqonda i-clutter kwi-waveform ye-oxygen sensor yokulungiswa kunye nokuxilongwa kokukhutshwa kwegesi ephumayo. Kwezinye iimeko, i-clutter ngumqondiso ocacileyo wokuba ukuguqulwa kwe-catalytic kuncitshiswe, kwaye emva koko ukukhutshwa kwe-exhaust kudlula umgangatho. Ukongeza, inkcazo ye-clutter kwi-waveform ye-oxygen sensor sisixhobo esibalulekileyo sokuxilongwa kwe-injini yokusebenza okanye ukukwazi ukuqhuba. I-Clutter ibonisa ukungalingani ekusebenzeni kakuhle kokutsha ukusuka kwi-cylinder ukuya kwenye. Inkcazo kunye nokuqonda kwe-clutter kwi-waveform ye-oxygen transmitter nayo ibaluleke kakhulu ekusebenziseni ngokufanelekileyo i-oxygen sensor signal ukulungiswa kunye nokuqinisekiswa. I-Clutter kwi-waveform ye-sensor ye-oxygen ibonisa ukuba i-gas ephumayo iyatshintsha ukusuka kwelinye i-cylinder ukuya kwelinye elingalinganiyo, okanye ngakumbi, umxholo ophezulu we-oksijini awufumanekanga kwiinkqubo zokutsha. Uninzi lwezinzwa zeoksijini zinokondla ngokukhawuleza ukutenxa kombane oveliswa yinkqubo nganye yokutsha xa zisebenza ngokwesiqhelo. Okukhona mkhulu umda wesignali we-clutter, kokukhona umahluko omkhulu wokwakheka kweoksijini ulinganiswa kwinkqubo nganye yokutsha. I-clutter ebonwa phantsi kweendlela ezahlukeneyo zokuqhuba ayibalulekanga nje kuphela ukufumanisa oyena nobangela wokungaphumeleli kovavanyo oluzinzileyo kunye nolwexeshana lokukhupha igesi, kodwa nesiseko sokugweba esisebenzayo soxilongo lokuqhutywa. I-oxygen sensor signal clutter eyenza i-one-to-one exhaust waveform kunye ne-peak burr ye-BC kwimodi yokukhawuleza ibaluleke kakhulu isibonakaliso sokuxilonga, kuba kuthetha ukuba ukutshisa kuya kusilela phantsi komthwalo. Ngokuqhelekileyo, ubukhulu be-clutter amplitude. Kukho i-oxygen sensors kwi-exhaust gas, ngoko i-clutter ibonisa ukuba umyinge we-oksijini ye-oksijini ye-feedback gas engena kwi-catalyst iyanda ngaphambi kokuphuma, kwaye i-nitrogen oxide kwi-catalyst ayinakuncitshiswa (ikhemikhali) kwi-oksijeni ecebileyo. okusingqongileyo (umxube obhityileyo). Ukushwankathela, kuyaziwa ukuba umqondiso we-clutter kwi-waveform ye-oxygen sensor kunye nenkqubo yempendulo eqhelekileyo ngokupheleleyo ayinayo impembelelo ecacileyo kwi-gesi yokukhupha okanye ukusebenza kwe-injini. Inani elincinci le-clutter linokungahoywa, ngelixa inani elikhulu le-clutter libalulekile. Oku kubonisa nje ukuba ukuxilongwa bubugcisa. Ukufunda ukugweba ukuba yintoni i-clutter eqhelekileyo kunye nento engekhoyo kufuna ukuziqhelanisa, kwaye oyena titshala ubalaseleyo ngamava. Eyona ndlela ilungileyo yokufunda kukujonga i-waveform ye-oxygen sensor ekujongeni iimayile ezahlukeneyo kunye neentlobo ezahlukeneyo zeemoto. Ukuqonda ukuba yintoni i-clutter eqhelekileyo kunye nokuba yintoni i-clutter engaqhelekanga kubaluleke kakhulu ukulungiswa okusebenzayo kokukhupha umbhobho kunye nokuxilongwa kwekhono lokuqhuba, kwaye kubalulekile ukuthatha ixesha lokufunda. Kwiinkqubo ezininzi eziqhelekileyo, isoftware waveform ixabiseke ngokupheleleyo. Ukuba ne-oxygen sensor reference waveform yenkqubo elawulwayo inokugqiba ukuba luhlobo luni lwe-clutter oluvumelekileyo kwaye luqhelekileyo, kwaye luhlobo luni lwe-clutter olufanele luthathelwe ingqalelo. Iikhrayitheriya ze-clutter ezilungileyo zezi: ukuba ukusebenza kwe-injini kulungile, akufanele kubekho ukuvuza kwe-vacuum, kunye ne-hydrocarbon (HC) iikhompawundi kunye nomxholo we-oksijini kwigesi yokukhupha iyinto eqhelekileyo. Kule nxalenye yovavanyo, kuya kunikwa ulwazi oluninzi kangangoko ukuze kuqondwe ukuba kukho ixesha elaneleyo kunye nendawo yokugubungela zonke izihloko malunga noku kolu qeqesho.