Chii chinonzi lambda probe mumotokari uye maitiro ekuiongorora

Mumotokari dzazvino, zvishandiso zvakasarudzika zvinoshandiswa izvo zvinobvumidza mota kutevedzera zviyero zvemamiriro ekunze. Pakati pezvigadzirwa zvakadaro pane lambda probe.

Funga kuti nei zvichidikanwa mumotokari, kwairi, maitiro ekuona kushanda kwayo, uyezve kuti ungatsiva sei.

Chii chinonzi lambda probe?

ChiGiriki "lambda" chinoshandiswa muindasitiri yeinjiniya kuratidza coefficient. Muchiitiko ichi, iko kukosheswa kwemweya mumhepo yekupedza. Kuti ive yakanyatsojeka, ichi ndicho chiyero chemweya chakanyanyisa mumusanganiswa wemafuta-mweya.

Kuti uone iyi parameter, sarudzo inokosha inoshandiswa, iyo inoongorora mamiriro emagetsi emagetsi zvigadzirwa. Chinhu ichi chinoshandiswa mumotokari dzine magetsi emagetsi. Iyo zvakare yakaiswa mumotokari ine chinogadzirisa chinoshandura mune yekurasa system.

Chii chinonzi lambda probe?

Iyo sensor inoshandiswa kunyatsoita mushando wemhepo / mafuta musanganiswa. Basa rayo rinokanganisa kushanda kweiyo inokonzeresa, iyo inokanganisa zvinhu zvinokuvadza kune zvakatipoteredza mune gasi rekuzadza Inoyera iko kukosheswa kweoksijeni mune iyo chiutsi uye inogadzirisa mashandiro eiyo mafuta system.

Kuti injini ishande nemazvo, musanganiswa wemhepo / peturu unofanirwa kupihwa masirinda nenzira kwayo. Kana pasina oxygen yakakwana, musanganiswa unozowedzerwa. Nekuda kweizvozvo, plugi dzemaraki muinjini yepeturu dzinogona kuzara, uye nzira yekutsva haizoburitse simba rakaringana kutenderedza crankshaft. Zvakare, kushomeka kweokisijeni kunotungamira mukusarudzika kupisa kwemafuta. Nekuda kweizvozvo, carbon monoxide, kwete kabhoni dhayokisaidhi, inogadzirwa mukudzima.

Kune rimwe divi, kana paine mweya wakawanda mumhepo-musanganiswa wemafuta pane zvakafanira, ipapo unenge wakaonda. Nekuda kweizvozvo - kuderera kwesimba reinjini, kuwanda kwetembiricha zviyero zvezvikamu zveiyi-humburumbira-pisitoni mashini. Nekuda kweizvi, zvimwe zvinhu zvinopera nekukurumidza. Kana paine yakawanda okisijeni mune iyo chiutsi, saka iyo NOx gasi haizorerwe mukati mechigadziro. Izvi zvinotungamirawo kusvibiswa kwezvakatipoteredza.

Sezvo kuumbwa kwemweya une chepfu kusingaonekwe nemaziso, panodiwa sensor inokosha iyo inogona kuongorora kunyange shanduko diki muinjini.

Ichi chikamu chinonyanya kubatsira mumamiriro ekuwedzera chiutsi chizvarwa (kana mota iri pasi pekushushikana kwakanyanya). Izvi zvinobatsira kuchengetedza chinokonzera chisina kusvibiswa uyezve inochengetedza imwe mafuta.

Dhizaini yekuongorora yeLambda

Iyo inokonzeresa zone sensor ine zvinhu zvinotevera zvinhu:

• Mumuviri wesimbi. Iyo yakasungirirwa nemativi etkeykey kuti zvive nyore kuisa kana kubvisa.
• O-mhete yekudzivirira mweya wekupedza kubuda mukati meiyo micro slot.
• Heat muteresi.
• Ceramic insulator.
• Iwo ma electrode akabatanidzwa neiyo wiring.
• Wiring chisimbiso.
• Heating element (inopisa nharo).
• Dzimba. Gomba rinoitwa mukati maro kuburikidza nemweya wakachena unopinda mukati mevhu.
• Kuchenesa coil.
• Dielectric muromo. Yakagadzirwa kubva kumakeramiki.
• Inodzivirira simbi chubhu ine perforation.

Iko huru dhizaini chinhu ndeye ceramic tip. Yakagadzirwa kubva zirconium oxide. Iyo yakafukidzwa neplatinum. Kana muromo uchipisa (tembiricha 350-400 madhigirii), inova kondakita, uye magetsi anotamiswa kubva kunze kuenda mukati.

Nheyo yekushanda kweiyo lambda probe

Kuti unzwisise chingave kusashanda kweiyo lambda probe, iwe unofanirwa kunzwisisa chirevo chekushanda kwayo. Kana mota iri pamutsetse wekugadzira, masisitimu ayo ese akagadzirirwa kushanda zvakakwana. Zvisinei, nekufamba kwenguva, zvikamu zveinjini zvinopera, zvikanganiso zvidiki zvinogona kuitika mune yemagetsi control unit, iyo inogona kukanganisa mashandiro ehurongwa hwakasiyana, kusanganisira iyo yemafuta.

Mudziyo uyu chinhu cheinonzi "mhinduro" system. ECU inotara kuti ingani mafuta nemhepo zvekupa kune yakawanda yekudyira kuitira kuti musanganiswa upise musirinda uye simba rakakwana rinoburitswa. Sezvo mota ichipera zvishoma nezvishoma, nekufamba kwenguva, zvakajairwa zvemagetsi hazvikwani - zvinoda kugadziriswa zvinoenderana nedunhu remagetsi.

Iri basa rinoitwa neye lambda probe. Panyaya yemusanganiswa wakapfuma, inopa iyo yekudzora unit ine voltage inoenderana nechiratidzo che -1. Kana musanganiswa wakaonda, ipapo chiratidzo ichi chichava +1. Kutenda nekugadziriswa uku, iyo ECU inogadzirisa iyo jekiseni system kune akachinja enjini parameter.

Chigadzirwa chacho chinoshanda maererano neshoko rinotevera. Chikamu chemukati checeramic tip chiri kusangana nemhepo yakachena, chikamu chekunze (chiri mukati meipi yekuzadza pombi) - ine gasi rekuzadza (kuburikidza nekuzadzwa kwechidzitiro chekudzivirira) ichifamba kuburikidza neyekuzadza system. Kana ichipisa, maoxygen ions anopinda zvakasununguka kubva mukati memukati kusvika kune yekunze nzvimbo.

Iko kune yakawanda okisijeni mudumbu reiyo oxygen sensor pane iri pombi yekuzadza. Musiyano mune izvi parameter unogadzira inoenderana voltage, iyo inopfuudzwa kuburikidza newaya kune ECU. Zvichienderana neshanduko yemiparamende, chinodzora chinogadzirisa kupihwa mafuta kana mweya kumasirinda.

Iko probe ye lambda yakaiswa kupi?

Iyo sensor inonzi yekuferefeta kwechikonzero, sezvo yakaiswa mukati meiyo chiutsi system uye inorekodha zviratidzo zvisinga gone kuongororwa kana iyo system yaora mwoyo. Kubudirira kukuru, ma sensors maviri akaiswa mumota dzazvino. Imwe inokwenenzverwa mupombi pamberi pechigadziro, uye yechipiri kuseri kwechinoshandura chinogadzirisa.

Kana probe isina kugadzirirwa kudziyisa, saka inoiswa padhuze nemota sezvinobvira kuti ipise nekukurumidza. Kana mumota makaiswa ma sensors maviri, anokutendera kuti uchinje mafuta, pamwe nekuongorora kugona kweyeye anobatsira pakuongorora.

Mhando uye dhizaini maficha

Kune maviri mapoka eiyo lambda probe sensors:

• Pasina kupisa;
• Kushatirwa.

Chikamu chekutanga chinoreva mhando dzekare. Zvinotora nguva kuvamisikidza. Iyo mhango yakakosha inofanirwa kusvika pakushandisa tembiricha kana dielectric ikava conductor. Kusvika yatsva kusvika pamadhigirii mazana matatu neshanu kusvika mazana mana, hazvishande. Panguva ino, iyo yemhepo-mafuta musanganiswa haigadziriswe, izvo zvinogona kukonzeresa mafuta asina kupisa kuti apinde mukukonzera. Izvi zvishoma nezvishoma zvinoderedza hupenyu hunoshanda hwechigadzirwa.

Nechikonzero ichi, mota dzese dzemazuva ano dzakashongedzwa neshanduro dzinodziya. Zvakare, ese sensors akarongedzwa mumhando nhatu:

• Piri-poindi isina kupisa;
• -Pfungwa mbiri inopisa;
• Broadband.

Takatotanga kuongorora kushandurwa pasina kupisa. Vanogona kuve netambo imwe (iyo chiratidzo inotumirwa yakananga kuECU) kana neaviri (wechipiri ndiye anoita basa rekumisa nyaya). Izvo zvakakodzera kuti utarise zvishoma kune mamwe maviri mapoka, sezvo iwo ari akaomesesa mune chimiro.

Mbiri-poindi inopisa

Mune maviri-poindi vhezheni nekupisa, pachave nematatu kana mana waya. Muchiitiko chekutanga, ichave yekuwedzera uye kubvisa kwekudziya mweya, uye chechitatu (nhema) - chiratidzo. Rudzi rwechipiri rwema sensors rine dunhu rimwe chete, kunze kwetambo yechina. Ichi chinhu chevhu.

Broadband

Broadband probes ine yakaoma kunzwisisa yekubatanidza scheme kune mota system. Ine tambo shanu. Mugadziri wega wega anoshandisa yake yekunyora kuratidza kuti ndeipi inoitisa chii. Kazhinji kazhinji, dema chiratidzo, uye pfumbu ivhu.

Mimwe tambo mbiri isimba rekushandisa pakupisa. Imwe waya ndiyo jekiseni chiratidzo waya. Ichi chinhu chinogadzirisa mweya wevasungwa mune iyo sensor. Kupomba kunoitika nekuda kwekuchinja kwesimba razvino muchinhu ichi.

Lambda inoferefeta zviratidzo zvekusashanda

Chiratidzo chekutanga chinokanganisa sensor ndiko kuwedzera kwekushandisa peturu (nepo mashandiro emuchina asingashanduki). Mune ino kesi, kuderera kwesimba rekuita kunozoonekwa. Nekudaro, iyi paramende haifanire kunge iri yega muystick.

Heano mamwe "zviratidzo" zveyakaferefeta probe:

• Yakawedzera CO yevasungwa. Iyi parameter inoyerwa neakasarudzika mudziyo.
• Injini CHECK mwenje yakauya padashboard. Asi mune ino kesi, iwe unofanirwa kubata sevhisi. Yambiro inogona kusashanda kune ino sensor.

Iyo okisijeni sensor inokundikana nekuda kwezvikonzero zvinotevera:

• Kupfeka kwechisikigo.
• Antifreeze yakakwira paari.
• Mhosva yacho yakacheneswa zvisizvo.
• Yakashata yemafuta mafuta (yakakwira lead midhi).
• Kupisa.

Nzira dzekutarisa lambda probe

Kuti utarise hutano hweiyo lambda probe, multimeter yakakwana. Basa racho rinoitwa nenzira inotevera:

• Kuongorora kwekunze kunoitwa. Soti pamuviri wayo inoratidza kuti inogona kunge yakatsva.
• Iyo sensor yakabviswa kubva mudunhu remagetsi, injini inotanga.
• Iyo tipi inofanirwa kuve inopisa kune tembiricha yekushanda. Kuti uite izvi, unofanirwa kuchengetedza kukurumidza kweinjini mukati me 2-3 zviuru zvekuchinja.
• Iwo mamultimeter ekufambisa akabatana neiyo waya waya. Iyo yakanaka tsvimbo yechigadzirwa yakabatana netambo yechiratidzo (nhema). Negative - kune ivhu (grey waya, kana zvisiri, ipapo chete kumutumbi wemota).
• Kana iyo sensor ichishandira, iyo multimeter kuverenga ichachinja pakati pe0,2-0,8 V. Yakakanganisika lambda probe inoratidza kuratidza kuverenga kubva 0,3 kusvika 0,7 V. Kana iyo ratidziro yakagadzikana, izvi zvinoreva kuti sensor haisi kushanda ...

Kutsiva uye kugadzirisa kweye lambda probe

Ko kana iyo sensor iri kunze kwehurongwa? Inoda kutsiviwa. Haisi kugadziridzwa. Chokwadi, vamwe masters vanoshandisa hunyengeri kana kudzima sensor. Nekudaro, nzira dzakadai dzakazara nekukanganisa malfunctions uye kuderera kwekushanda kweinjini yemukati yemoto.

Izvo zvinodikanwa kuti uchinje iyo sensor kune imwe yakafanana. Icho chokwadi ndechekuti ECU inoenderana nematanho echimwe chigadzirwa. Kana iwe ukaisa imwe nadzurudzo, pane mukana mukuru wekupa zvisirizvo zviratidzo. Izvi zvinogona kutungamira kune akasiyana asingafadzi mhedzisiro, kusanganisira kukurumidza kukundikana kwechakonzera.

Kutsiva iyo lambda probe inofanirwa kuitwa pane inotonhora injini. Pakutenga okisijeni sensor nyowani, zvakakosha kuti uone kuti chepakutanga chakatengwa, uye kwete analogue yakakodzera mota iyi. Kukanganisa kwacho hakuzoonekwe nekukasira, asi zvichizotevera mudziyo unomira kushanda zvakare.

Maitiro ekuisa sensor nyowani ari nyore.

• Waya idzi kubva kuongororo yekare dzakabviswa.
• Iyo yakashata sensor haina kukamurwa.
• Imwe nyowani yakamisikidzwa munzvimbo yayo.
• Tambo dzinoiswa pamusoro zvinoenderana nekumaka.

Paunenge uchitsiva iyo okisijeni sensor, iwe unofanirwa kuve wakangwarira kuti usabvarura tambo pairi kana pombi yekuzadza. Mushure mekutsiva mota, tanga uye tarisa mashandiro echishandiso (uchishandisa multimeter, sezvakatsanangurwa pamusoro).

Sezvauri kuona, kushanda kweinjini yemota kunoenderana nemiparamende inouya kubva kughwayda probe kuenda kuECU. Kukosha kweiyo sensor kunowedzerwa kana iyo yekumesa system ine chinogadziriswa chinogadzirisa.

Mibvunzo nemhinduro:

Zviripiko zvema lambda probes? Iyo sensor inoputirwa mukati meiyo exhaust system iri padyo necatalyst sezvinobvira. Motokari dzemazuva ano dzinoshandisa ma lambda probes (imwe iri pamberi pechigadziriso uye imwe shure kwayo).

Ndeipi basa re lambda probe sensor? Iyi sensor inotarisisa kuumbwa kweiyo exhaust gasi. Kubva pane zviratidzo zvayo, chikwata chekutonga chinogadzirisa kuumbwa kwemhepo-mafuta musanganiswa.