Momwe mungadzipangire nokha lambda probe snag

Magalimoto onse amakono ali ndi zisa zotulutsa mpweya wa poizoni neutralizer - chothandizira. Amatchulidwa choncho potengera momwe amachitira ndi mankhwala omwe amachitika pamenepo, pomwe zinthu zolemekezeka za kudzaza zimathandizira ndikupangitsa kuti zitheke kupanga zinthu zovulaza kukhala zopanda ndale mwachangu kwambiri. Koma nthawi zina chipangizo chothandiza ichi chimakhala gwero lamavuto akulu.

Chifukwa chiyani mukupusitsa sensor ya oxygen

Kapangidwe kakang'ono ka chothandizira sagwirizana ndi makina ndi matenthedwe odzaza kwa nthawi yayitali. Kutentha kuno ngakhale mumayendedwe abwinobwino kumafika madigiri chikwi.

Zisa za uchi za Ceramic zimawonongeka, ndipo izi zimayambitsa zochitika zoopsa:

• kudzaza kumasungunuka, sinter ndikutchinga kutuluka kwaufulu kwa mpweya wotulutsa mpweya;
• zisa zazing'ono za uchi zimakutidwa ndi mwaye ndi zinthu zina zomwe zimakhala ndi zotsatira zomwezo;
• Choopsa kwambiri ndi chakuti chothandizira, chomwe opanga amakonda kuyika pafupi ndi njira yotulutsira mutu wa chipika kuti atenthetse kutentha kwa ntchito, amakhala gwero la fumbi la ceramic ndi zinyalala zomwe zimalowa m'masilinda ndikuwononga mbali za injini. .

M'mainjini omwe ndi osadalirika kwambiri pamaziko awa, eni ake amakonda kuchotsa zosintha zoopsa ngakhale ndi mtunda wochepa wamagalimoto. Chifukwa chogwiritsa ntchito zitsulo zamtengo wapatali pomanga, eni ake safuna kuyika zinthu zoyambirira kapena zokonza zodula.

Zotsatira zake zimawonetsedwa osati pakuwonjezeka kwa poizoni wa utsi. Chikhalidwe cha chothandizira chikuwunikidwa mosalekeza ndi makina oyendetsa injini yamagetsi (ECU) pogwiritsa ntchito zizindikiro kuchokera ku masensa awiri a oxygen (lambda probes).

Mmodzi wa iwo ili pamaso chothandizira, galimoto imayang'anira zikuchokera osakaniza ntchito mwa izo, koma chachiwiri ndi udindo kwathunthu kwa dzuwa utsi neutralization.

Zizindikiro za lambda yachiwiri zimawerengedwa pogwiritsa ntchito makompyuta, kuphatikizapo kuyendetsa kayendedwe ka kutentha kwa chothandizira. Kusowa kwake kudzawerengedwa nthawi yomweyo, dongosololi lidzalowa mumayendedwe adzidzidzi ndikuwunikira chizindikiro chowongolera pa dashboard. Injini adzataya makhalidwe ake onse, mafuta ndi mavuto ena adzayamba.

Kuti mugwire ntchito popanda chothandizira, mutha kusintha pulogalamu ya unit control. Gulu la chilengedwe la galimoto lidzatsika, koma mwinamwake lidzakhala njira yogwirira ntchito kwathunthu, ndizotheka kuwonjezera mphamvu ndi kuchepetsa kugwiritsira ntchito, chilengedwe sichipita pachabe, koma pazifukwa zosiyanasiyana, si onse omwe ali okonzeka kupita. za izo.

Anthu ena amafuna kunyengerera pulogalamu ya ECU yokhazikika mwanjira ina, kupanga kuwerengera kolakwika kwa sensa ya okosijeni.

Mfundo yogwiritsira ntchito snag lambda probe

Chotsatira chofananacho chikhoza kupezedwa ndi njira zamagetsi ndi zamakina.

1. Pachiyambi choyamba, chizindikiro chimapangidwa kuti, kwenikweni, mpweya wa okosijeni sumapanga.
2. Chachiwiri, zinthu zonse zimapangidwira kuti sensa ipereke kuwerenga kolakwika.

Sikuti machitidwe onse anganyengedwe modalirika ndi njira zakale zotere. Chilichonse chimasankhidwa ndi zida za galimoto inayake.

Makina osakanikirana a chothandizira cha exhaust system

Njira yosavuta ndiyo kuchotsa sensa ya okosijeni kuchokera kumalo olamulidwa kwa mtunda pang'ono poyiyika pazanja la spacer.

Chinthu chogwira ntchito chimayamba kugwira ntchito m'dera limene mpweya umapangidwira mwa njira ina, chiyanjano pakati pa zochita za makompyuta ndi kuyankha kwa sensa kumasowa, zomwe zimazindikiridwa ndi mapulogalamu ophweka ngati chizindikiro chachibadwa. ntchito ya catalyst.

Zithunzi

The spacer ndi manja achitsulo okhala ndi ulusi mapeto. Zigawo za ulusi zimagwirizana ndi sensor yomwe imagwiritsidwa ntchito. Kumbali imodzi, ulusiwo ndi wamkati, thupi la kafukufuku wa lambda limakulungidwa mmenemo, ndipo kumbali ina, ndi lakunja kuti likhazikike mu ulusi wokwanira wa utsi wotuluka kumbuyo kwa chothandizira.

Bowo limabowoleredwa m'mphepete mwa manja kuti mpweya upite ku chinthu chogwira ntchito. Magawo a manja adzakhala awiri a njira iyi ndi mtunda umene sensa imasunthira kutali ndi chitoliro cha gasi. Makhalidwe amasankhidwa moyesera, zomwe zimafunikira ndizosavuta kupeza zama injini enieni.

Ma spacers apamwamba kwambiri amakhala ndi zinthu zothandizira. Pankhaniyi, kutuluka kwakukulu kumapita molunjika kumalo otuluka, ndipo sensa ya okosijeni imalandira mpweya wokha womwe wadutsa mu microcatalyst.

Chizindikirocho chidzasiyana ndi chokhazikika, koma machitidwe ambiri amavomereza ngati ntchito yachibadwa. Pokhapokha muzochitika pamene ECU ikufuna kutentha chothandizira, ndipo kuyikapo mu adaputala sikungagwirizane ndi izi mwanjira iliyonse. Kuphatikiza apo, microcatalyst iyi imakonda kutsekedwa mwachangu ndi mwaye ndikusiya kugwira ntchito palimodzi.

Malo osungirako

Chothandizira chimachotsedwa, ndipo spacer imayikidwa m'malo mwa sensa yachiwiri ya okosijeni. The awiri a dzenje ntchito akhoza kusankhidwa malinga ndi ntchito khola kwambiri popanda kusonyeza chizindikiro. Sensor imalowetsedwa mu ulusi wa spacer. Phokoso la kuthako limakhala lokhazikika pokhazikitsa chomangira moto.

Electronic snag lambda probe

Njira yamagetsi yonyenga ECU ndiyolondola kwambiri. Pali zosankha zambiri pano, kuyambira zosavuta, pomwe chizindikiro cha sensa chimasinthidwa ndi fyuluta yopangidwa ndi resistor ndi capacitor, zomwe zimasankhidwa pa kompyuta inayake, komanso zovuta kwambiri, ndi jenereta ya autonomous pulse.

Chiwembu

Kuyerekezera muzochitika zosavuta kwambiri kumadalira chizindikiro chotulutsa mpweya wa okosijeni. Poyambirira, ili ndi malire otsetsereka, koma ngati adzazidwa mothandizidwa ndi unyolo wa RC, ndiye kuti midadada ina siwona ntchito yachilendo.

Zovuta kwambiri nthawi yomweyo zimazindikira chinyengo pamayendedwe oyamba owongolera.

Ngati sensa ili ndi ulusi wowotcha wolakwika, ndiye kuti muyenera kuyika chopinga china, popeza chipikacho chimazindikira kupuma koteroko nthawi zonse.

M'malo mwa sensa, mutha kulumikiza dera lomwe limapanga ma pulses, ofanana kwambiri ndi okhazikika. Nthawi zambiri njirayi imagwira ntchito, koma ngati ECU ikuphunzitsidwa kuyendetsa chothandizira, ndiye kuti blende iyi siidzatha kuyankha mokwanira.

Njira yoyika

Zomwe zimafunikira pawailesi kapena matabwa zimayikidwa mwina mu kudula kwa waya wa sensa ya okosijeni kapena m'malo mwake, kulumikiza mwachindunji cholumikizira.

Bowo la sensa likhoza kutsekedwa, mwachitsanzo, ndi gawo lolakwika.

Njira yabwino kwambiri yogwiritsira ntchito lambda ndi iti

Palibe chinyengo changwiro. Zonse zimadalira galimoto yeniyeni ndi mawonekedwe a kukhazikitsidwa kwa ntchito yoyang'anira dziko la chothandizira. Nthawi zambiri, njira yokhayo yotulukira ndikusintha firmware ya ECU.

Nthawi zambiri izi zimaperekedwa ndi pulogalamu yake, magalimoto ambiri amapangidwa m'matembenuzidwe osiyanasiyana, kuphatikizapo omwe alibe chothandizira. Mulimonsemo, kulambalala zowongolera-zingakhale zovuta kwa chiptuner wodziwa bwino galimoto.

Mafunso ndi mtengo wa ambiri amasiya ndi kuwakakamiza kuchita nawo mitundu yonse yamatsenga. Apa ndikofunika kumvetsetsa bwino njira zomwe zimagwira ntchito ndi galimotoyi, ndi zomwe zidzawononge nthawi ndi ndalama. Ngakhale mutha kuyesa ngati mutha kutembenuza, zida za wailesi ndi chitsulo chosungunulira.

Sizingakhale zotheka kuwononga galimoto pano, ndipo ngati kulephera komaliza, komabe, funsani katswiri pakulembetsa pulogalamu ya kalasi yotsika zachilengedwe.

Monga njira, mutha kukhazikitsa chothandizira chokwanira chokwanira komanso chodalirika chokonzekera, chomwe, motsutsana ndi nthawi yogwiritsidwa ntchito komanso kulipira ntchito za mbuye, sizikuwoneka zodula kwambiri.