Mota nitric oxide sensor: chinangwa, chishandiso, malfunctions

Rondedzero yemidziyo yemotokari yemazuva ano inosanganisira huwandu hwakawanda hwezvimwe zvekushandisa zvinopa kunyaradza kwakanyanya kune mutyairi uye vafambi, uye zvakare zvinoita kuti mota ive yakachengeteka pakumhanya kwakasiyana. Asi kuomesa zviyero zvemamiriro ekunze, kunyanya zvemota dzedhiziri, zviri kumanikidza vagadziri kuti vashongedze mamodheru avo nemidziyo yekuwedzera iyo inopa iyo simba yeyuniti neiyo yakachena.

Pakati pemidziyo yakadaro pane urea jekiseni system. Takatotaura nezvazvo zvakadzama. mune imwe ongororo... Iye zvino isu tichaisa pfungwa pane iyo sensor, isina iyo iyo system isingashande, kana ichazoshanda nezvikanganiso. Ngatimbofungai nezvekuti nei NOx sensor ichidikanwa kwete mudhiziri chete, asiwo mumotokari yepeturu, mashandiro ayo, uye maitiro ekuona kusashanda kwayo.

Chii chinonzi Car Nitric oxide Sensor?

Rimwe zita reiyo nitric oxide sensor inononoka musanganiswa sensor. Anofarira mota anogona kunge asingatomboziva kuti mota yake inogona kuiswa nemidziyo yakadaro. Chinhu chega chinogona kuratidza kuvepo kweiyi sensor chiratidzo chinowirirana padashboard (Tarisa Injini).

Ichi chishandiso chakaiswa padhuze nekatoni. Zvichienderana nekushandurwa kwesimba remagetsi, panogona kuve nema sensors maviri akadaro. Imwe yakaiswa kumusoro kwerwizi rwekuongorora uye imwe yakadzika. Semuenzaniso, iyo AdBlue system inowanzo shanda nema sensors maviri chete. Izvi ndezvekuona kuti chiutsi chine hushoma senitrogen oxide yezviri mukati. Kana iyo system ikatadza kushanda, mota haizosvike nharaunda nharaunda dzakataurwa nemugadziri.

Mazhinji epeturu injini ine anogoverwa mafuta jekiseni system (kumwe kugadziridzwa kwemafuta masisitimu anotsanangurwa mune imwe ongororo) tora imwe sensor inorekodha huwandu hweoksijeni mune iyo chiutsi. Kutenda kuongororo ye lambda, inodzora inodzora musanganiswa wemhepo-peturu zvichienderana nemutoro uri muchikamu chemagetsi. Verenga zvakawanda nezve chinangwa uye musimboti wekushanda kweiyo sensor. pano.

Dhidhiyo basa

Pakutanga, chete dhiziri unit yaive yakashongedzerwa yakananga jekiseni, asi kumotokari yemazuva ano ine peturu injini, yakadaro mafuta system haisisiri kushamisika. Iyi jekiseni nadzurudzo inobvumira huwandu hwetsva kuunzwa muinjini. Muenzaniso weiyi ndiyo sisitimu yekuvhara ma cylinders mazhinji pane mashoma mitoro. Aya matekinoroji anotendera kwete chete kupa yakanyanya mafuta hupfumi, asi zvakare kubvisa kugona kwakanyanya kubva kunogadzira magetsi.

Kana injini iine peturu jekiseni sisitimu irikushanda padiki mutoro, iyo yemagetsi control inogadzira musanganiswa wakaonda (mashoma oxygen concentration). Asi panguva yekupisa kweVTS yakadaro, chiutsi chine huwandu hwakawanda hwemweya une chepfu, kusanganisira nitrogen oxide uye kabhoni. Kana zviri zvemakemikari emakemikari, ivo vanoremerwa nechinokanganisa (nezve mashandiro ayo uye maitiro ekuona zvikanganiso zvayo, verenga zvakasiyana). Nekudaro, nitrogenous macomputer akanyanya kuomarara kusiyanisa.

Dambudziko rehuwandu hwezvinhu zvine chepfu zvinogadziriswa nekuisa imwe yekuwedzera, iri yerudzi rwekuchengetedza (nitrogen oxides inobatwa mairi). Midziyo yakadaro ine yakachengeterwa huremu inokwana, uye izvo NO zvirimo zvinofanirwa kunyoreswa kuchengetedza gasi rekuzadza rakachena sezvinobvira. Iri basa ndere kungoita sensor yezita rimwe chete.

Muchokwadi, iyi imwecheteyo lambda probe, chete iyo inoiswa mushure mekuchengetedza gadziriso mune peturu unit. Iyo yekudzimisa sisitimu yemotokari yedhiziri ine yekudzora catalytic converter uye yekuyera mudziyo wakaiswa kuseri kwayo. Kana iyo yekutanga sensor ichiruramisa iyo BTC kuumbwa, iyo yechipiri inokanganisa iyo yekumesa gasi zvemukati. Aya ma sensors anosanganisirwa seyakajairwa neSelection Catalytic Shanduko Sisitimu.

Kana iyo NOx sensor ikaona yakawedzera zvemukati enitrogenous macomputer, chishandiso chinotumira chiratidzo kune chinodzora unit. Anowirirana algorithm inogoneswa mu microprocessor, uye mirairo inodikanwa inotumirwa kune vanoita mafuta ehurongwa, nerubatsiro rwekuti kupfekedzwa kwemusanganiswa wemhepo-mafuta kunogadziriswa.

Muchiitiko cheinjini yedhiziri, chiratidzo chinoenderana kubva kune sensor inoenda mukutonga kweiyo urea jekiseni system. Nekuda kweizvozvo, kemikari inosaswa murwizi rwekuneta kuti igadzirise magasi ane chepfu. Injini dze peturu dzinongochinja kuumbwa kweMTC.

NOx sensor chishandiso

Maseru anonzwisisa macomputer ane chepfu mumagetsi ekuchenesa akaomarara zvigadzirwa zvemagetsi. Dhizaini yavo inosanganisira:

• Hita;
• Kamuri yekupomba;
• Chipimo chekuyera.

Mune kumwe kunatsurudzwa, zvishandiso zvakagadzirwa neyekuwedzera, yechitatu, kamera. Kushanda kwechigadzirwa zvinotevera. Iwo ekudzimisa magasi anosiya simba rechikamu uye opfuura nepakati pekuchinja chinogadziridza kune yechipiri lambda probe. Ikozvino inopihwa kwairi, uye iyo yekudziya chinhu inounza tembiricha yenharaunda kune 650 madigiri kana kupfuura.

Pasi pemamiriro aya, iyo O2 yemukati inoderera nekuda kwekukanganisa kweiyo yekupomba ikozvino, iyo inogadzirwa neiyo electrode. Kupinda mukamuri yechipiri, nitrogenous macomputer anoora kuita akachengeteka makemikari zvinhu (oxygen uye nitrogen). Iyo yakakwira iyo oxide yezvinyorwa, iyo yakasimba iyo yekupomba yazvino ichave iri.

Iyo yechitatu kamera, iyo irimo mune mamwe maenzanisi ekugadzirisa, inogadzirisa kunzwisisika kwemamwe maseru maviri. Kugadzirisa zvinhu zvine chepfu, mukuwedzera kune tembiricha yazvino uye yakakwira, maelekitirodhi akagadzirwa nesimbi dzinokosha, dzinogona kuwanikwawo mukati mekukonzera.

Chero chero NOx sensor inewo angangoita maviri mini pombi. Yekutanga inotora okisijeni yakawandisa mune iyo chiutsi, uye yechipiri inotora chikamu chekudzora magasi kuti uone huwandu hweokisijeni mukuyerera (zvinoonekwa panguva yekuora kweNitrogen oxide). Zvakare, iyo mita inoshongedzerwa neyayo yega control unit. Basa rechinhu ichi kutora zviratidzo zve sensor, kukudziridza uye kupfuudza zvimiro izvi kune iyo yepakati yekudzora yuniti.

Iko kushanda kweNOX sensors yeinjini yedhiziri uye yeyuniti peturu kwakasiyana. Muchiitiko chekutanga, chishandiso chinotarisa kuti zvinobudirira sei kudzikisira chinoshanda. Kana chinhu ichi cheiyo chiutsi chichirega kubata nebasa rayo, iyo sensor inotanga kunyoresa yakanyanya kukwirira yezvinhu zvine chepfu mune yekuyerera rwizi. Chiratidzo chinoenderana chinotumirwa kuECU, uye injini yekumaka kana iyo Injini Inonyorwa inovhenekera pane iyo control panel.

Sezvo meseji yakafanana ichionekwa nekumwe kusashanda kwesimba remagetsi, saka usati waedza kugadzirisa chimwe chinhu, unofanirwa kutora diagnostics yemakomputa panzvimbo yebasa. Mune dzimwe mota, iyo yekuzviongorora-basa inogona kudaidzwa kumusoro (maitiro ekuita izvi, maona zvakasiyana) kutsvaga iyo yekukanganisa kodhi. Ruzivo urwu harubatsiri padanho mutyairi. Kana paine runyorwa rwemazita, mune mamwe mamodheru emota iyo unit yekudzvanya inoburitsa kodhi inoenderana, asi mumota zhinji ruzivo chete rwezvekushomeka runoratidzwa pane-bhodhi komputa skrini. Nechikonzero ichi, kana pasina ruzivo mukuita nzira dzekuongorora dzakadai, saka kugadzirisa kunofanirwa kuitwa chete mushure mekushanyira chiteshi chebasa.

Panyaya yemafuta epeturu, iyo sensor inotumirawo kurovera kuchikamu chekutonga, asi ikozvino ECU inotumira rairo kune vanoita basa kuti vagadzirise kuwedzera kweBTC. Iyo inoshandura inoshandura yega haigone kubvisa nitrogenous macomputer. Neichi chikonzero, injini inogona chete kuburitsa yakachena yekutsvaira gasi kana iyo peturu jekiseni nzira yashandurwa kuitira kuti inyatsotsva zvakanaka.

Iyo inokonzeresa inogona kutsungirira nediki diki yezvinhu zvine chepfu, asi nekukurumidza kana zvirimo zvikawanda, iyo sensor inotangisa kupisa kuri nani kwemhepo-musanganiswa wemafuta kuitira kuti chinhu ichi cheiyo chiutsi chiwedzere "kudzoka" zvishoma.

Mubvunzo wakaparadzaniswa maererano neiyi sensor waya ayo. Sezvo iine mudziyo wakaomarara, wiring yayo zvakare ine nhamba yakakura yewaya. Mune sensors epamberi, iyo wiring inogona kuve netambo nhanhatu. Chimwe nechimwe chazvo chine mamakisi acho (iyo yekudzivirira yakatsvuka muvara rayo), nekudaro kana uchibatanidza mudziyo unofanirwa kucherechedza pinout kuitira kuti sensor ishande nemazvo.

Hechino chinangwa cheimwe yeaya waya:

• Yero - kubvisa hita;
• Bhuruu - yakanaka kune hita;
• Yakachena - pombi yazvino waya waya (LP I +);
• Girinhi - pombi yazvino tambo tambo (LP II +);
• Grey - chiratidzo tambo yekamuri yekuyera (VS +);
• Nhema ndiyo tambo yekubatanidza pakati pemakamera.

Dzimwe shanduro dzine tambo yeorenji mune wiring. Iyo inowanzo kuwanikwa mu pinout ye sensors yeAmerican mota mamodheru. Ruzivo urwu runodiwa zvakanyanya nevashandi vechiteshi chebasa, uye kune mutyairiwo zvake, zvakaringana kuziva kuti wiring haina kukuvara uye machipisi ekutaurirana akanyatso kubatana kune vanobatana neanodzora unit.

Kukanganisa pamwe nemhedzisiro yavo

Inoshanda nitric oxide sensor haingopa chete hushamwari hwezvakatipoteredza, asi zvakare kune imwe nhanho inoderedza hupombwe hweyuniti yemagetsi. Ichi chishandiso chinokutendera kuti uongorore mashandiro einjini yemukati yemoto pamitoro yakaderera. Nekuda kweizvi, injini inoshandisa hushoma huwandu hwemafuta, asi panguva imwechete iyo mweya-peturu musanganiswa unopisa zvakanyanya sezvinobvira.

Kana iyo sensor ikakundikana, ipapo inoendesa chiratidzo zvishoma nezvishoma kana iyi pulse ichave isina kusimba, kunyangwe pakubuda kubva kuchikamu chekutonga chechigadzirwa. Kana iyo ECU isinganyore chikwangwani kubva kune ino sensor kana ichi chikumbiro chakanyanya kushomeka, zvemagetsi zvinopinda munzira yekukurumidzira. Zvinoenderana neiyo fekitori firmware, algorithm inogoneswa, zvinoenderana neyakanyanya kusimbisa musanganiswa inopihwa kumasirinda. Sarudzo yakafanana inotorwa kana iyo yekugogodza sensor ikatadza, yatakataura nezvayo. mune imwe ongororo.

Mune emergency mode, hazvigoneke kuzadzikisa kugona kukuru kwemotokari. Muzviitiko zvakawanda, kuwedzera kwemafuta ekushandisa kunoonekwa muhuwandu hwe15-20 muzana, uye zvakanyanya mumadhorobha maitiro.

Kana iyo sensor yakaputsika, saka iyo yekuchengetedza chinokonzeresa inotanga kushanda zvisirizvo nekuda kwekuti iyo yekudzoresa kutenderera yaputswa. Kana iyo mota ichiyedzwa kutevedzera zviyero zvemamiriro ekunze, saka kutsiva kweiyi sensor kunosungirwa, nekuti nekuda kwekusashanda kweiyo neutralization system, huwandu hwakawanda hwezvinhu zvine chepfu hunoburitswa munzvimbo, uye mota haizopfuure kuzvidzora.

Kana zviri zvekuongorora, hazviwanzo kuitika kuti utarise kuputsika kweiyo advanced sensor nekodhi chaiyo yekukanganisa. Kana iwe ukangotarisa pane ino paramende, ipapo uchafanirwa kuchinja ese ma probes. Kutsanangurwa kwakaringana kwekusashanda kunogoneka chete panzvimbo yebasa uchishandisa macomputer diagnostics. Kune izvi, oscilloscope inoshandiswa (nezvayo inotsanangurwa pano).

Kusarudza sensor nyowani

Mune auto zvikamu zvemusika, iwe unogona kazhinji kuwana zvikamu zvebhajeti. Nekudaro, mune kesi yenitrogen oxide sensors, izvi hazvigone kuitwa - zvigadzirwa zvepakutanga zvinotengeswa muzvitoro. Chikonzero cheichi ndechekuti chishandiso chinoshandisa zvinhu zvinodhura zvinopa kuita kwemakemikari. Mutengo wema sensors anodhura hauzosiyana zvakanyanya kubva pamutengo wepakutanga.

Nekudaro, izvi hazvidziviriri vagadziri vasina hunhu kubva kuyedza kuumbiridza kunyange michina inodhura kudaro (mutengo weiyo sensor unogona kunge wakaenzana nezvikamu zvese zvemota, semuenzaniso, pani yemuviri kana girazi remhepo mune mamwe mamodheru emota).

Nechokunze, nyepera haina kumbosiyana neyekutanga. Kunyangwe zvigadzirwa zvechigadzirwa zvinogona kunge zvakakodzera. Chinhu chega chinobatsira kuziva kunyepedzera ndeye yakasarudzika mhando yekuvhara waya uye machipisi ekutaurirana. Iyo bhodhi pane iyo yekudzora unit uye yekubatana chip yakagadziriswa ichave zvakare iri yakaipa mhando. Padivi iri, iyo yekunyepedzera inoshayawo kupisa, hunyoro uye kudengenyeka kwekudzivirira.

Zviri nani kutenga zvigadzirwa kubva kune vanozivikanwa vagadziri, semuenzaniso, Denso uye NTK (maJapan vagadziri), Bosch (zvigadzirwa zveGerman). Kana sarudzo ichiitwa zvinoenderana neyemagetsi katalog, saka zviri nani kuita izvi kuburikidza neVIN-kodhi. Iyi ndiyo nzira iri nyore yekuwana yekutanga kifaa. Iwe unogona zvakare kutsvaga zvigadzirwa nekanzuru kodhi, asi kazhinji kacho ruzivo urwu harusi kuzivikanwa kune wepakati mutyairi.

Kana zvisingaite kuwana zvigadzirwa zvevagadziri vakanyorwa, iwe unofanirwa kuteerera kune iko kurongedza. Zvinogona kuratidza kuti mutengi ane zvigadzirwa zveOEM zvinotengeswa nekambani yekupakata. Kazhinji kurongedza kwacho kunenge kune zvinhu zvevagadziri vakanyorwa.

Vazhinji vatyairi vanobvunza mubvunzo: nei iri sensor ichidhura? Icho chikonzero ndechekuti simbi dzakakosha dzinoshandiswa mukugadzira, uye basa rayo rinosanganisirwa nekuyera kwakaringana kuyerwa uye hombe basa sosi.

mhedziso

Nekudaro, iyo nitric oxide sensor ndiyo imwe yemidziyo yakawanda yemagetsi isina iyo isina yemazuva ano mota inoshanda. Kana michina yakadaro ikakundikana, mutyairi anofanirwa kushandisa zvakanyanya mari. Haasi ese maresitoreti ebasa anokwanisa kunyatso kuongorora ayo malfunctions.

Kunyangwe paine mutengo wakakwira wekuongorora, kuomarara kwechigadzirwa uye hunyengeri hwebasa, sensor yeNox ine hunyanzvi hwakareba. Neichi chikonzero, vatyairi havawanzo kutarisana nekudiwa kwekutsiva ichi chishandiso. Asi kana iyo sensor yakaputsika, saka iwe unofanirwa kuitarisa pakati pezvigadzirwa zvepakutanga.

Pamusoro pezvo, isu tinopa pfupi vhidhiyo nezve mashandiro eiyo sensor yakurukurwa pamusoro:

22/34: Kuongororwa kweiyo peturu injini yekudzora system. NOX sensor. Dzidziso.

Mibvunzo nemhinduro:

Chii chinoita NOx sensor? Sensor iyi inoona nitrogen oxides mumagasi emota. Yakaiswa pamotokari dzese dzemazuvano kuitira kuti kutakura kunosangana nemamiriro ekunze.

Iyo NOx sensor iri kupi? Iyo yakaiswa padyo nekagadziriso kuitira kuti iyo control unit igadzirise kushanda kweinjini kuti ive nani kupisa mafuta uye neutralization yezvinhu zvinokuvadza mukupisa.

Sei NOx ine ngozi? Kufema gasi iri kunokuvadza hutano hwevanhu. Mushonga uri pamusoro pe60 ppm unokonzera kunzwa kupisa mumapapu. Kudzika kwakadzika kunokonzera misoro, matambudziko emapapu. Inouraya muhuwandu hwepamusoro.

Chii chinonzi NOX? Iri ndiro zita remubatanidzwa renitrogen oxides (NO uye NO2), iyo inoratidzika semhedzisiro yemakemikari anoita inoperekedzwa nekupisa. NO2 inoumbwa pakubata nemhepo inotonhora.