UwitekaN0x sensorni kimwe mubice byingenzi bigize sisitemu ya nyuma yo kuvura.Mugihe cyimikorere ya moteri, N0x yibanze muri gaze ya gaze ya moteri ya moteri isohoka buri gihe, kugirango hamenyekane niba imyuka ya N0x yujuje ibyangombwa bisabwa.
Rukuruzi ya N0x nigice cyuzuye kigizwe na induction probe, module yo kugenzura hamwe nicyuma.Hariho imikorere yo kwisuzumisha imbere, kandi amakuru yo gukurikirana amenyeshwa ECU binyuze mumatumanaho ya bisi.
1. Kwishyiriraho umubiri wa sensor ya azote:
1. N0x sensorubushyuhe bwubushakashatsi busabwa: Kwishyiriraho sensor ya N0x bigomba kwitonda kugirango utabishyira ahantu ubushyuhe buri hejuru cyane.Birasabwa kuguma kure y'umuyoboro usohoka no hejuru yisanduku ya SCR, kandi hagomba gushyirwaho ingabo yubushyuhe hamwe nipamba yo kubika.Kandi usuzume ubushyuhe bukikije sensor ya ECU, birasabwa ko ubushyuhe bwiza bwakazi bwa sensor ya N0x butagomba kuba hejuru ya dogere 85.
2. Ibyuma bifata ibyuma nibisabwa kugirango uhuze: kora akazi keza ko gutunganya no kurinda amazi ibyuma, komeza umurongo urekuye mugihe cyo gushiraho no gukoresha sensor ya N0x, kandi ibyuma byose ntibishobora kugororwa cyane kugirango wirinde gukoresha insinga. kuva kugwa kubera imbaraga zidasanzwe zo hanze cyangwa imbaraga zo guhungabana, hanyuma ugerageze kwirinda ibikoresho byinsinga kandi sensor ya N0x iragaragara.Niba hari insinga z'icyuma zerekanwe, zigomba kuzingirwa hamwe na kaseti, kandi ingingo zinsinga ntizigomba guterwa namavuta, imyanda, ibyondo nibindi binyamakuru, hamwe n’amazi adafite amazi.Bitabaye ibyo, sensor izananirwa kubera amazi mumashanyarazi.
2. Uburyo bwo kugaragara bwa N0x azote oxyde sensor: ibisekuruza 2.1 nibisekuru 2.8
1. sensor ya NOx ifite 12V na 24V.
2. sensor ya NOx ifite ibyuma 4-pin na 5-pin.
3. Ibiranga moderi ya azote ikoreshwa ni: Cummins, Weichai, Yuchai, Sinotruk, nibindi.
3. Inzira yo gukora ya sensor ya azote isobanurwa muburyo burambuye:
Igikorwa nyamukuru cya sensor ya N0x nukumenya niba agaciro ka N0x yibitse muri gaze ya gaze irenze imipaka, no gusuzuma niba muffler ya catalitiki ihindura gusaza cyangwa isenyutse.
UwitekaN0x sensorivugana nigice cyo kugenzura ikoresheje bisi ya CAN kandi ifite imikorere yayo yo gusuzuma.Nyuma ya sensor yisuzumishije nta makosa, ishami rishinzwe kugenzura ritegeka umushyushya gushyushya sensor ya N0x.Mugihe cyo gushyushya, niba ikimenyetso cya sensor kitakiriwe nyuma yigihe ntarengwa cyo gushyushya kirenze, hemejwe ko ubushyuhe bwa sensor butizewe.
1. “Nta gihugu gifite ingufu”:
A. Muriyi leta, ingufu za 24V ntizihabwa sensor.
B. Ubu ni imiterere isanzwe ya sensor mugihe umuriro wo gutwika umubiri uzimye.
C. Muri iki gihe, sensor nta bisohoka.
2. “Byakozwe - sensor idakora”:
A. Muri iki gihe, imbaraga zatanzwe kuri sensor binyuze mumashanyarazi.
B. Rukuruzi yinjira mu cyiciro cyo gushyushya.Intego yo gushyushya ni uguhumeka ubuhehere bwose kumutwe wa sensor.
C. Icyiciro cyo gushyushya kizamara amasegonda 60.
3. Iyo disike yo gutwika ifunguye, sensor ya N0x izashyuha kugeza kuri 100 ° C.
4. Noneho utegereze ko ECM itanga ikimenyetso cyubushyuhe bwa "ikime" (Ikime cyimeza):
Ubushyuhe bwa "ikime" ni ubushyuhe aho nta butumburuke buzaba muri sisitemu yo gusohora ishobora kwangiza sensor ya N0x.Ubushyuhe bwikime bwashyizwe kuri 120 ° C, kandi ubushyuhe bwagaciro nigiciro gipimwa nubushyuhe bwo gusohoka bwerekana EGP.
5. Nyuma yuko sensor yakira ibimenyetso byubushyuhe bwikime biva muri ECM, sensor izashyuha kugirango ubushyuhe runaka (ntarengwa 800 ° C) - Icyitonderwa: Niba umutwe wa sensor uhuye namazi muriki gihe, sensor izaba byangiritse.
6. Nyuma yo gushyushya ubushyuhe bwakazi, sensor itangira gupima bisanzwe.
7. Sensor ya azote yohereza ogisijeni ya azote yapimwe muri ECM ibinyujije muri bisi ya CAN, kandi moteri ECM ikurikirana imyuka ya azote rimwe na rimwe ikoresheje aya makuru.
4. ihame ryakazi rya sensor ya azote:
Ihame ry'akazi: Ikintu cy'ibanze cya sensor ya azote na ogisijeni ni umuyoboro wa Zr02 zirconia ceramic ya feri, ikaba ari electrolyte ikomeye, kandi electrode ya platine (Pt) yacuzwe ku mpande zombi.Iyo ashyutswe n'ubushyuhe runaka (600-700 ° C), kubera itandukaniro ryubunini bwa ogisijeni kumpande zombi, zirconi izahura na chimique, kugenda kwishyurwa bizaba kumpande zombi za electrode, kandi amafaranga yimuka azabyara amashanyarazi .Ukurikije ingano yumuyaga wabyaye, intumbero ya ogisijeni iragaragazwa, kandi umwuka wa ogisijeni ugarurwa mugenzuzi kugirango ubare umwuka wa ogisijeni wa azote uriho hanyuma wohereze muri ECU unyuze muri bisi ya CAN.
5. sensor probe ibikorwa byo kwikingira no kwirinda:
Iyo gutwika bifunguye, sensor ya N0x izashyuha kugeza kuri 100 ° C.Noneho tegereza DCU yohereze ikimenyetso cyubushyuhe "ikime".Iyo sensor yakiriye ibimenyetso byubushyuhe bwikime byoherejwe na DCU, sensor izashyushya ubushyuhe runaka (ntarengwa 800 ° C. Icyitonderwa: Niba sensor ihuye namazi muriki gihe, bizatera sensor yangiritse)
Igikorwa cyo gukingira ikime: Kuberako sensor ya azote ubwayo ikenera ubushyuhe bwo hejuru iyo electrode ikora, sensor ya azote ya ogisijeni ifite imiterere ya ceramic imbere.Ceramic izaturika iyo ihuye namazi mubushyuhe bwinshi, bityo sensor ya azote ya ogisijeni izashyiraho umurimo wo kurinda ikime.Imikorere yiyi mikorere ni ugutegereza igihe runaka nyuma yo kumenya ubushyuhe bwumuriro bugera ku bushyuhe runaka.Verisiyo ya mudasobwa yizera ko ku bushyuhe bwo hejuru, kabone niyo haba hari amazi kuri sensor nyuma yigihe kinini, irashobora guhumeka byumye na gaze ishyushye.
6. Ubundi bumenyi bwa sensor ya azote na ogisijeni:
Ibikoresho byitwa "Gortex" * bikoreshwa kuriNOx sensorkwemeza ko umwuka mwiza winjira mumwanya wo kugereranya imbere muri sensor.Niyo mpamvu, ni ngombwa cyane kwemeza ko uyu mushinga utabujijwe, kandi birakenewe ko twirinda ibintu by’amahanga guhagarika cyangwa gutwikira uyu mushinga mugihe cyo kwishyiriraho.Wongeyeho, gerageza urebe ko sensor yashizweho nyuma yumubiri ushushanyije kandi ushushanyije.Niba imirimo yo gusiga amarangi no gushushanya igomba gukorwa nyuma ya sensor imaze gushyirwaho, imyanda ya sensor igomba kurindwa neza, kandi ibikoresho byo gukingira bigomba gukurwaho nyuma yo gusiga amarangi no gusiga irangiye kugirango imikorere isanzwe ya sensor .
Igihe cyo kohereza: Jul-09-2022