Umgomo Wokusebenza

I-1.Oxygen Sensor ukucushwa okujwayelekile ezimotweni. Yinto yokulinganisa esebenzisa izinto ezibucayi ze-ceramic ukukala amandla oxygen kumapayipi okuphela kwezimoto, futhi ibala ukugxila okuhambisanayo komoya ngokuya ngesilinganiso sebhalansi yamakhemikhali, ukuze ulawule ikhwalithi yomkhiqizo kanye nokuphuma komkhiqizo ukuze uhlangabezane namazinga. Inzwa ye-oksijini isetshenziswa kabanzi ekulawulweni komkhathi ngokuhlanganiswa kwamalahle ahlukahlukene, ukuhlanganiswa kwamafutha, ukuhlanganiswa kwegesi nezinye izimfanelo. Kuyindlela engcono kakhulu yokukala umkhathi wokuvutha njengamanje, futhi unezinzuzo zesakhiwo esilula, impendulo esheshayo, ukulungiswa okulula, ukusetshenziswa okulula nokulinganiswa okulungile. Usebenzisa le nzwa ukukala nokulawula umoya wokuvutha awukwazi ukuqina futhi uthuthukise ikhwalithi yomkhiqizo kuphela, kodwa futhi nokunciphisa umjikelezo wokukhiqiza futhi ugcine amandla.

2.Isimiso esisebenzayo sezinzwa ze-oksijini e-automobile sifana neyebhethri elomile, kanye nento ye-zirconia enzwa e-sensor isebenza njenge-electrolyte. Umgomo wayo osebenzayo oyisisekelo yile: Ngaphansi kwemibandela ethile, umehluko ongaba khona wenziwa ngokusebenzisa umehluko wokuhlushwa oxygen phakathi kwangaphakathi nangaphandle kwe-zirconia, kanye nomehluko omkhulu. Okuqukethwe komoya-mpilo emkhathini kungu-21%, kanye negesi yokuphelelwa yisikhathi ngemuva kokuhlanganiswa kwengxube ecebile empeleni akunawo oksijini. Igesi yokuphelelwa yisikhathi ngemuva kokuhlanganiswa kwengxubevange ye-Lean Union noma igesi yokuphelelwa amandla ngenxa yokuntuleka komlilo iqukethe i-oksijini, kepha isengaphansi kakhulu komoya-mpilo emkhathini. Ngaphansi kwe-catalysis yeplatinamu ekushiseni okuphezulu, ama-oxygen ama-oksijini athelwe kabi yi-adsorbed ezindaweni ezingaphezulu zangaphandle ze-zirconia sleeve. Ngoba kukhona umoya-mpilo osemkhathini kunasegesi ophelelwe yisikhathi, uhlangothi olukhulumayo nomoya odonsayo luthola ama-aons amabi ngaphezu kwalolo gesi uhlangothi, kanye nokwahlukahlukana kwama-ion ezinhlangothini zombili kukhiqiza amandla e-electromotive.

3.Uma-oxygen okuhlushwa komoya-mpilo ohlangothini lwegesi olungapheliyo kwemoto eluhlaza kuphansi, kukhiqizwa amandla aphezulu (0.6 ~ 1v) kukhiqizwa phakathi kwe-electrodes yenzwa ye-oxygen, futhi lolu voltage luthunyelwa e-ecu yezimoto ukuze kuthunyelwe. I-ECU ibheka isibonakaliso se-voltage ephezulu njengengxube ecebile kanye nesibonakaliso esiphansi se-voltage njengengxube enciphile. Ngokusho kwesiginali kagesi we-sensor ye-oxygen, ikhompyutha ifaka noma icebise le ngxube ngokuya ngesilinganiso se-theoretical air-fuel ratio eduze ngangokunokwenzeka 14.7: 1. Ngakho-ke, inzwa ye-oxygen yinzwa ebalulekile yokulawula ngogesi. Kuphela lapho inzwa ye-oksijini ekushiseni okuphezulu (ukuphela kufinyelela ngaphezu kwama-300 ° C) Izici zalo zikhonjiswa ngokuphelele futhi i-voltage ingakhishwa ngokuphelele. Cishe ngo-800 ° C, inempendulo esheshayo ekushintsheni kwengxube, kepha lesi sici sizoshintsha kakhulu emazingeni okushisa aphansi.