Sensor ya ogisijeni y'imodoka.
Sensor ya ogisijeni y'imodoka niyo sensor y'ingenzi mu kugenzura moteri ya EFI, kandi ni yo ngingo y'ingenzi yo kugenzura imyuka ihumanya ikirere y'imodoka, kugabanya ihumana ry'ibidukikije by'imodoka no kunoza ubwiza bw'ingufu za moteri y'imodoka.
Hari ubwoko bubiri bw'ibikoresho byo gupima umwuka wa ogisijeni, zirconia na titanium dioxide.
Imashini ipima umwuka wa ogisijeni ni ugukoresha ibintu by’ingenzi mu gupima ubushobozi bwa ogisijeni mu itanura rishyushya cyangwa imiyoboro isohora umwuka, kubara ingano ya ogisijeni ijyanye nayo ukurikije ihame ryo kuringaniza ibinyabutabire, kugenzura no kugenzura igipimo cy’umwuka n’amavuta mu itanura, kugenzura ubwiza bw’ibicuruzwa n’ibipimo by’imyuka isohora umwuka mu bikoresho bipima, bikoreshwa cyane mu buryo bwose bwo gutwika amakara, gutwika amavuta, gutwika gazi n’ibindi bikoresho bigenzura ikirere cy’itanura.
Akamashini gapima umwuka wa ogisijeni gakoreshwa mu kugenzura uburyo bwo kugenzura ubwiyongere bw'umwuka w'igikoresho gitera lisansi kugira ngo hamenyekane ubwiyongere bwa ogisijeni mu mwuka usohoka n'ubucucike bw'ikigereranyo cy'umwuka na lisansi, kugenzura igipimo cy'umwuka na lisansi (14.7:1) muri moteri, no kohereza ibimenyetso by'ubwiyongere kuri mudasobwa.
Ihame ry'imikorere
Sensore ya ogisijeni ikora kimwe na bateri, aho zirconia muri sensore ikora nk'electrolyte. Ihame ry'ibanze ry'imikorere ni: mu bihe bimwe na bimwe (ubushyuhe bwinshi na catalysis ya platine), itandukaniro ry'ubwinshi bwa ogisijeni hagati y'imbere n'inyuma ya ogisijeni ya Hao rikoreshwa mu gutanga itandukaniro ry'ubushobozi, kandi uko itandukaniro ry'ubwinshi bw'umwuka rirushaho kuba rinini, ni ko itandukaniro ry'ubushobozi rirushaho kuba rinini. Ingano ya ogisijeni mu kirere ni 21%, umwuka usohoka nyuma yo gushya cyane ntabwo urimo ogisijeni, kandi umwuka usohoka nyuma yo gushya kw'imvange cyangwa umwuka usohoka bitewe no kubura umuriro uba ufite ogisijeni nyinshi, ariko uracyari muto cyane ugereranije na ogisijeni iri mu kirere.
Mu gihe cy’ubushyuhe bwinshi na platine, ogisijeni ifatanye na sensor ya ogisijeni irakoreshwa, bityo itandukaniro ry’amashanyarazi riravuka, ingufu zisohoka z’uruvange rwinshi zigera kuri 1V, naho imvange yoroshye zigera kuri 0V. Dukurikije ikimenyetso cy’amashanyarazi cya sensor ya ogisijeni, igipimo cy’umwuka na lisansi kigenzurwa kugira ngo gihindure ubugari bw’ingufu ziterwa na lisansi, bityo uburyo bwo kugenzura amashanyarazi bwa sensor ya ogisijeni ni bwo buryo bw’ingenzi bwo gupima lisansi. Sensore ya ogisijeni ishobora kugaragazwa neza gusa mu bushyuhe bwinshi (impera igera kuri 300 ° C) kandi ishobora gusohora ingufu. Isubiza vuba cyane impinduka mu mvange kuri 800 ° C.
Inama
Sensor ya ogisijeni ya zirconium dioxide igaragaza impinduka mu buryo uruvange rushobora gushya binyuze mu mpinduka y'amashanyarazi, naho sensor ya ogisijeni ya titanium dioxide igaragaza impinduka mu buryo uruvange rushobora gushya binyuze mu mpinduka y'ubudahangarwa. Sisitemu yo kugenzura ikoranabuhanga ikoresha sensor ya ogisijeni ya zirconia ntishobora kugenzura igipimo nyacyo cy'umwuka-lisansi hafi y'igipimo cy'umwuka-lisansi iyo imikorere ya moteri yangiritse, mu gihe sensor ya ogisijeni ya titanium dioxide ishobora no kugenzura igipimo nyacyo cy'umwuka-lisansi hafi y'igipimo cy'umwuka-lisansi iyo imikorere ya moteri yangiritse.
Ingano y'ishyirwa ry'umuvuduko (ubugari bw'ishyirwa ry'umuvuduko) igenzurwa n'ishami rigenzura mu gihe gito hakurikijwe ikimenyetso cya sensor ya ogisijeni yitwa "short-term fuel correction", igenzurwa n'ingufu zisohoka za sensor ya ogisijeni.
Gukosora lisansi mu gihe kirekire ni agaciro gaterwa n'impinduka z'imiterere y'amakuru y'imikorere y'ishami rigenzura hakurikijwe impinduka z'ingano y'impinduka mu gihe gito.
Ikosa risanzwe
Iyo sensor ya ogisijeni ibuze, mudasobwa ya sisitemu yo gutera lisansi y'ikoranabuhanga ntishobora kubona amakuru y'ubwinshi bwa ogisijeni mu muyoboro w'imyotsi, bityo ntishobora kugenzura igipimo cy'umwuka n'amavuta, ibyo bikazongera ikoreshwa rya lisansi na moteri ndetse n'umwanda w'imyotsi, kandi moteri izagaragara nk'umuvuduko udahindagurika, kubura umuriro, kwiyongera kw'amazi n'ibindi bintu bidafite ishingiro. Kubwibyo, ikosa rigomba gukurwaho cyangwa gusimburwa ku gihe [1].
Ikosa ry'uburozi
Uburozi bwa ogisijeni ni ikintu gikunze kubaho kandi kigoye gukumira ko cyangirika, cyane cyane ikoreshwa kenshi ry’imodoka zikoresha lisansi, ndetse na sensor nshya ya ogisijeni, ishobora gukora ibirometero bike gusa. Niba ari uburozi buke bw’umushongi, gukoresha ikigega cya lisansi idafite lisansi bishobora gukuraho lisansi iri hejuru y’icyuma gikoresha ogisijeni no kuyisubiza mu kazi kayo. Ariko, akenshi bitewe n’ubushyuhe bwinshi bw’imyotsi, lisansi yinjira imbere muri yo, ikabuza ikwirakwira rya ogisijeni, bigatuma icyuma gikoresha ogisijeni kitagira icyo kigeraho, icyo gihe gishobora gusimburwa gusa.
Byongeye kandi, uburozi bwa silikoni ku byuma bipima umwuka wa ogisijeni nabyo ni ibintu bikunze kubaho. Muri rusange, silikoni ikorwa nyuma yo gutwika ibinyabutabire bya silikoni biri muri lisansi n'amavuta yo kwisiga, hamwe na gaze ya silikoni isohoka mu ikoreshwa ritari ryiza rya gaze ya silikoni yo kwisiga bizatuma sensor ya ogisijeni inanirwa, bityo hagomba gukoreshwa amavuta meza n'amavuta yo kwisiga.
Mu gusana, ni ngombwa guhitamo no gushyiraho gaskets za rubber neza, ntushyiremo ibintu bisukura n'ibindi birwanya gukomereka bitari ibyavuzwe n'uwabikoze kuri sensor, nibindi. Bitewe n'umuriro mubi wa moteri, imiterere ya karuboni igaragara ku buso bwa sensor ya ogisijeni, cyangwa amavuta cyangwa umukungugu n'ibindi bisigazwa byinjizwa muri sensor ya ogisijeni, bikabangamira cyangwa bigafunga umwuka wo hanze mu gice cy'imbere cya sensor ya ogisijeni, ku buryo ikimenyetso cy'umusaruro wa sensor ya ogisijeni kidahuye neza. ECU ntishobora gukosora igipimo cy'umwuka na lisansi mu gihe. Umusaruro wa carbone ugaragara ahanini nko kwiyongera kw'ikoreshwa rya lisansi n'ubwiyongere bunini bw'ibyuka bihumanya. Muri iki gihe, iyo ibisigazwa bikuweho, bizasubira mu kazi kabyo.
Gucika kw'ibumba
Ibumba rya sensa ya ogisijeni rirakomeye kandi riracikagurika, kandi gukubita ibintu bikomeye cyangwa guhumeka n'umwuka ukomeye bishobora gutuma risenyuka rikanananirwa. Kubwibyo, ni ngombwa kwitonda cyane mu gihe ukemura ibibazo no kubisimbuza ku gihe.
Insinga y'amatafari yatwitswe
Insinga irwanya ubushyuhe irashya. Kuri sensor ya ogisijeni ishyushye, iyo insinga irwanya ubushyuhe ishyushye, biragoye gutuma sensor igera ku bushyuhe busanzwe kandi igatakaza imikorere yayo.
Guhagarika umurongo
Urugendo rw'imbere rw'icyuma gipima umwuka wa ogisijeni rurafunzwe.
Uburyo bwo kugenzura
Igenzura ry'uko amashanyarazi adashobora gushyushya
Kuraho agakoresho ko gufunga icyuma gipima umwuka wa ogisijeni, hanyuma ukoreshe multimeter kugira ngo upime ubukana buri hagati y’inkingi y’ubushyuhe n’inkingi y’icyuma iri mu gice cy’icyuma gipima umwuka wa ogisijeni. Agaciro k’ubukana ni 4-40Ω (reba amabwiriza y’icyitegererezo cyihariye). Niba itujuje ubuziranenge, simbuza icyuma gipima umwuka wa ogisijeni.
Gupima voltage y'ibitekerezo
Mu gupima voltage y'ibitekerezo bya sensor ya ogisijeni, plug y'imashini ya ogisijeni igomba gukurwaho, kandi insinga nto igomba gukurwa mu gice cy'isohoka ry'voltage y'ibitekerezo bya sensor ya ogisijeni hakurikijwe igishushanyo mbonera cy'icyitegererezo, hanyuma igashyirwamo plug y'imashini. Voltage y'ibitekerezo ishobora gupimwa uhereye ku murongo w'imashini mu gihe moteri ikora (imwe muri moderi ishobora kandi gupima voltage y'ibitekerezo bya sensor ya ogisijeni uhereye ku gice cyo kumenya amakosa). Urugero, urukurikirane rw'imodoka zakozwe na Toyota Motor Company zishobora gupima voltage y'ibitekerezo bya sensor ya ogisijeni uhereye ku gice cya OX1 cyangwa OX2 kiri mu gice cyo kumenya amakosa).
Mu gupima voltage y'ibitekerezo bya sensor ya ogisijeni, ni byiza gukoresha multimeter yo mu bwoko bwa pointer ifite intera iri hasi (ubusanzwe 2V) na impedance iri hejuru (ubudahangarwa bw'imbere burenga 10MΩ). Uburyo bwihariye bwo kuvumbura ni ubu bukurikira:
1. Shyira moteri ubushyuhe busanzwe (cyangwa uyikoreshe kuri 2500r/min nyuma yo kuyitangira iminota 2);
2. Huza ikaramu ya negatif y'ihagarara rya voltage ya multimeter kuri E1 cyangwa electrode ya negatif ya bateri iri mu gice cyo gutahura amakosa, n'ikaramu ya negatif kuri jack ya OX1 cyangwa OX2 iri mu gice cyo gutahura amakosa, cyangwa kuri nomero iri ku gice cyo gufunga insinga cya sensor ya ogisijeni.
3, reka moteri ikomeze gukora ku muvuduko wa 2500r/min, kandi urebe niba pointer ya voltmeter ishobora kuzunguruka hagati ya 0-1V, kandi wandike umubare w'izunguruka rya voltmeter mu masegonda 10. Mu bihe bisanzwe, hamwe n'iterambere ry'igenzura ry'ingufu, voltage y'ingufu ya sensor ya ogisijeni ihora ihinduka hejuru na munsi ya 0.45V, kandi voltage y'ingufu igomba guhinduka inshuro zitari munsi ya 8 mu masegonda 10.
Iyo ari munsi y'inshuro 8, bivuze ko sensor ya ogisijeni cyangwa sisitemu yo kugenzura ubwiyongere bw'umwuka idakora neza, bishobora guterwa no kwirundanya kwa karuboni ku buso bwa sensor ya ogisijeni, bityo ubushobozi bwo kumva ubwiyongere bugagabanuka. Muri urwo rwego, moteri igomba gukoreshwa kuri 2500r/min mu gihe cy'iminota 2 kugira ngo ikureho ubwiyongere bwa karuboni ku buso bwa sensor ya ogisijeni, hanyuma ikareba voltage ya ubwiyongere bw'umwuka. Niba pointer ya voltmeter ikomeje guhinduka buhoro nyuma yuko karuboni ikuweho, bigaragaza ko sensor ya ogisijeni yangiritse, cyangwa ko circuit ya mudasobwa ifite ikibazo.
4, igenzura ry'amabara ry'isura y'ibikoresho bya ogisijeni
Kuraho sensor ya ogisijeni mu muyoboro usohora umwuka uvuyemo umwuka hanyuma urebe niba umwobo w'imyobo uri ku gasanduku k'icyuma ufunze kandi ko igice cy'imbere cya ceramic cyangiritse. Iyo byangiritse, simbura sensor ya ogisijeni.
Amakosa ashobora kandi kumenyekana urebye ibara ry'igice cyo hejuru cya sensor ya ogisijeni:
1, hejuru y'ikijuju cyoroshye: iri ni ibara risanzwe rya sensor ya ogisijeni;
2, hejuru yera: iterwa n'umwanda wa silikoni, sensor ya ogisijeni igomba gusimbuzwa muri iki gihe;
3, hejuru y'umukara (nk'uko bigaragara ku Ishusho ya 1): iterwa n'umwanda w'ubutare, niba ari mubi cyane, igomba no gusimbura icyuma gipima umwuka wa ogisijeni;
(4) Igitereko cy'umukara: giterwa no gushyira karuboni mu kirere, nyuma yo gukuraho ikibazo cyo gushyira karuboni mu kirere, gushyira karuboni mu cyuma gipima ogisijeni muri rusange bishobora gukurwaho mu buryo bwikora.
Niba ushaka kumenya byinshi, komeza usome izindi nkuru kuri uru rubuga!
Duhamagare niba ukeneye ibyo bicuruzwa.
Zhuo Meng Shanghai Auto Co, Ltd.yiyemeje kugurisha ibice by'imodoka bya MG&MAUXS irahawe ikazekugura.
