Sensonzi yeokisijeni (Lambda probe)

An oxygen sensor (OC), inozivikanwawo selambda probe, inoyera huwandu hweokisijeni mumagasi ekupedza nekutumira chiratidzo kune injini inodzora unit (ECU).

Ndeipi sensor yeokisijeni

Iyo yekumberi yeokisijeni sensor DK1 inoiswa mune exhaust manifold kana pamberi pepombi yekuburitsa pamberi peinoshandura inoshandura. Sezvaunoziva, iyo catalytic inoshandura ndiyo chikamu chikuru chemotokari emission control system.

Iyo yekumashure lambda probe DK2 inoisirwa mukupedza mushure meiyo catalytic converter.

Pane 4-cylinder injini, angangoita maviri lambda probe akaiswa. V6 uye V8 injini dzine kanenge mana O2 sensors.

ECU inoshandisa chiratidzo kubva kumberi kweokisijeni sensor kugadzirisa mhepo / mafuta musanganiswa nekuwedzera kana kuderedza huwandu hwemafuta.

Iyo yekumashure okisijeni sensor chiratidzo inoshandiswa kudzora kushanda kweiyo catalytic inoshandura. Mumotokari dzemazuva ano, panzvimbo yepamberi ye lambda probe, iyo air-fuel ratio sensor inoshandiswa. Inoshanda zvakafanana, asi nekunyatsojeka.

Iyo okisijeni sensor inoshanda sei

Kune akati wandei marudzi e lambda probes, asi kuti zvive nyore, muchinyorwa chino tichangotarisa akajairwa okisijeni sensors anogadzira voltage.

Sezvinoratidzwa nezita racho, voltage inogadzira okisijeni sensor inogadzira diki voltage yakaenzana nemusiyano wehuwandu hweokisijeni mumhepo yekubuda uye mumhepo yekubuda.

Kuti ushande zvakanaka, lambda probe inofanirwa kupiswa kune imwe tembiricha. Iyo yakajairika sensor yemazuva ano ine mukati memagetsi kupisa chinhu chinofambiswa neinjini ECU.

Apo mafuta-mhepo musanganiswa (FA) inopinda mujini yakaonda (mafuta maduku uye mhepo yakawanda), okisijeni yakawanda inoramba iri mumagasi emhepo, uye sensor okisijeni inobudisa zvishoma zvishoma (0,1-0,2 V).

Kana masero emafuta akapfuma (mafuta akawandisa uye asina mweya wakakwana), kune okisijeni shoma yasara mukupedza, saka sensor inoburitsa yakawanda voltage (inenge 0,9V).

Air-fuel ratio kugadzirisa

Iyo yekumberi yeokisijeni sensor ine basa rekuchengetedza iyo optimum yemhepo / mafuta reshiyo yeinjini, iyo inenge 14,7: 1 kana 14,7 zvikamu zvemhepo kune 1 chikamu chemafuta.

Iyo control unit inogadzirisa kuumbwa kwemhepo-mafuta musanganiswa zvichienderana nedata kubva kumberi oksijeni sensor. Kana probe yepamberi ye lambda inoona huwandu hweokisijeni, ECU inotora injini iri kushanda yakaonda (haina mafuta akakwana) uye saka inowedzera mafuta.

Kana iyo okisijeni muyero mukubuda yakaderera, ECU inofunga kuti injini iri kumhanya yakawanda (yakawandisa mafuta) uye inoderedza kupihwa kwemafuta.

Iyi nzira inoenderera mberi. Iyo injini komputa inogara ichichinja pakati peyakaonda uye yakapfuma musanganiswa kuti ichengetedze yakakwana yemhepo / mafuta reshiyo. Iyi nzira inodaidzwa kunzi "closed loop operation".

Kana iwe ukatarisa kumberi kweokisijeni sensor voltage chiratidzo, ichabva pa 0,2 volts (yakaonda) kusvika ku0,9 volts (yakapfuma).

Kana motokari ichitonhora yatanga, sensor yeokisijeni yepamberi haina kudziya zvakakwana uye ECU haishandisi chiratidzo cheDC1 kuti igadzirise kuendeswa kwemafuta. Iyi modhi inonzi open loop. Chete kana sensor ichidziya zvizere ndipo iyo jekiseni yemafuta inoenda mune yakavharwa mode.

Mumotokari dzemazuva ano, panzvimbo yeyakajairika oxygen sensor, yakafara-bhendi air-fuel ratio sensor inoiswa. Mhepo / fuel ratio sensor inoshanda zvakasiyana, asi ine chinangwa chimwe chete: kuona kana musanganiswa wemhepo / mafuta unopinda muinjini wakapfuma kana kuonda.

Iyo air-fuel ratio sensor ndiyo yakanyatsojeka uye inogona kuyera yakakura siyana.

Rear oxygen sensor

Iyo yekumashure kana yakadzika yeokisijeni sensor inoiswa mukubuda mushure meiyo catalytic inoshandura. Inoyera huwandu hweokisijeni mumagasi ekuburitsa anosiya catalyst. Chiratidzo chinobva kumashure kwelambda probe chinoshandiswa kutarisa kushanda kweshanduko.

Iyo controller inogara ichienzanisa masaini kubva kumberi uye kumashure O2 sensors. Zvichienderana nezviratidzo zviviri izvi, ECU inoziva mashandiro anoita catalytic converter iri kushanda. Kana iyo catalytic converter ikatadza, ECU inobatidza "Check Engine" mwenje kuti ikuzivise.

Iyo yekumashure okisijeni sensor inogona kuongororwa uchishandisa diagnostic scanner, ELM327 adapta ine Torque software, kana oscilloscope.

Oxygen Sensor Identification

Iyo yekumberi lambda probe pamberi peinoshandura inoshandura inowanzonzi "kumusoro" sensor kana sensor 1.

Iyo yekumashure sensor yakaiswa mushure meiyo catalytic inoshandura inonzi iyo pasi sensor kana sensor 2.

Iyo yakajairika inline 4-cylinder injini ine chete block (bhangi 1/bhangi 1). Naizvozvo, pane inline 4-cylinder injini, izwi rekuti "bhangi 1 sensor 1" rinongoreva kumberi kweokisijeni sensor. "Bank 1 Sensor 2" - rear oxygen sensor.

Verenga zvimwe: Chii chinonzi Bhangi 1, Bhangi 2, Sensor 1, Sensor 2?

Injini yeV6 kana V8 ine mabhuroko maviri (kana zvikamu zviviri zveiyo "V"). Kazhinji, cylinder block ine cylinder #1 inonzi "bhangi 1".

Vagadziri vemotokari vakasiyana vanotsanangura Bhangi 1 uye Bhangi 2 zvakasiyana. Kuti uzive kuti bhangi 1 nebhangi 2 zviri papi pamotokari yako, unogona kutarisa mubhuku rako rekugadzirisa kana Google yegore, kugadzira, modhi, uye saizi yeinjini.

Oxygen sensor kutsiva

Oxygen sensor matambudziko akajairika. Iyo yakanganisa lambda probe inogona kutungamira mukuwedzera kudyiwa kwemafuta, kuburitsa kwakakwira uye akasiyana matambudziko ekutyaira (rpm kudonha, kutadza kukurumidza, rev float, nezvimwewo). Kana iyo okisijeni sensor isina kukwana, inofanira kutsiviwa.

Pamotokari zhinji, kutsiva iyo DC inzira iri nyore. Kana iwe uchida kutsiva iyo okisijeni sensor iwe pachako, uine humwe hunyanzvi uye bhuku rekugadzirisa, hazvisi izvo zvakaoma, asi iwe ungangoda yakakosha yekubatanidza ye sensor (inoratidzwa).

Dzimwe nguva zvinogona kuva zvakaoma kubvisa yekare lambda probe, sezvo inowanzoita ngura yakawanda.

Chimwe chinhu chekuchengeta mupfungwa ndechekuti dzimwe mota dzave dzichizivikanwa kuti dzine nyaya dzekutsiva okisijeni masensa.

Semuenzaniso, kune mishumo yeaftmarket okisijeni sensor inokonzera matambudziko pane dzimwe injini dzeChrysler. Kana usina chokwadi, zviri nani kugara uchishandisa iyo yekutanga sensor.