Na'urar firikwensin iskar oxygen ta mota.
Firikwensin iskar oxygen na mota shine babban firikwensin amsawa a cikin tsarin sarrafa injin EFI, kuma shine babban sashi don sarrafa fitar da hayakin mota, rage gurɓatar muhallin mota da inganta ingancin konewar mai na injin mota.
Akwai nau'ikan na'urori masu auna iskar oxygen guda biyu, zirconia da titanium dioxide.
Na'urar firikwensin iskar oxygen shine amfani da abubuwan da ke da alaƙa da yumbu don auna ƙarfin iskar oxygen a cikin tanderun dumama ko bututun hayaki daban-daban, ƙididdige yawan iskar oxygen da ya dace da ƙa'idar daidaiton sinadarai, don sa ido da sarrafa rabon iska da mai a cikin tanderun, don tabbatar da ingancin samfura da ƙa'idodin fitar da hayaki na abubuwan aunawa, waɗanda ake amfani da su sosai a cikin kowane nau'in konewar kwal, konewar mai, konewar iskar gas da sauran sarrafa yanayin tanderun.
Ana amfani da na'urar firikwensin iskar oxygen don sarrafa tsarin sarrafa martani na na'urar allurar mai ta hanyar lantarki don gano yawan iskar oxygen a cikin iskar shaƙa da yawan rabon iska-man fetur, don sa ido kan rabon konewar iska-man fetur na ka'ida (14.7:1) a cikin injin, da kuma aika siginar amsawa zuwa kwamfutar.
Ka'idar aiki
Na'urar firikwensin iskar oxygen tana aiki iri ɗaya da baturi, tare da sinadarin zirconia a cikin na'urar firikwensin yana aiki kamar electrolyte. Babban ƙa'idar aiki ita ce: a ƙarƙashin wasu yanayi (zafin jiki mai yawa da kuma catalysis na platinum), ana amfani da bambancin yawan iskar oxygen tsakanin ciki da wajen Hao oxide don samar da bambanci mai yuwuwa, kuma mafi girman bambancin yawan iskar oxygen, mafi girman bambancin yuwuwar. Abun da ke cikin iskar oxygen a cikin sararin samaniya shine kashi 21%, iskar gas bayan ƙonewa mai ƙarfi a zahiri ba ta ɗauke da iskar oxygen ba, kuma iskar gas ɗin da ke samarwa bayan ƙonewar cakuda mai narkewa ko iskar gas ɗin da ke fitowa daga rashin wuta ya ƙunshi ƙarin iskar oxygen, amma har yanzu ya fi ƙasa da iskar oxygen a cikin sararin samaniya.
A ƙarƙashin catalysis na babban zafin jiki da platinum, ana amfani da iskar oxygen da ke haɗe da na'urar firikwensin oxygen, don haka ana samar da bambancin ƙarfin lantarki, ƙarfin fitarwa na cakuda mai ƙarfi yana kusa da 1V, kuma haɗin mai narkewa yana kusa da 0V. Dangane da siginar ƙarfin lantarki na na'urar firikwensin oxygen, ana sarrafa rabon iska da mai don daidaita faɗin bugun bugun mai, don haka sarrafa lantarki na na'urar firikwensin oxygen shine babban firikwensin don auna mai. Ana iya siffanta firikwensin oxygen gaba ɗaya ne kawai a yanayin zafi mai yawa (ƙarshen yana kaiwa sama da 300 ° C) kuma yana iya fitar da ƙarfin lantarki. Yana amsawa da sauri ga canje-canje a cikin cakuda a kusan 800 ° C.
Nasihu
Na'urar firikwensin iskar oxygen ta zirconium dioxide tana nuna canjin yawan cakuda mai ƙonewa ta hanyar canjin ƙarfin lantarki, kuma na'urar firikwensin iskar oxygen ta titanium dioxide tana nuna canjin cakuda mai ƙonewa ta hanyar canjin juriya. Tsarin sarrafa lantarki ta amfani da na'urar firikwensin iskar oxygen ta zirconia ba zai iya sarrafa ainihin rabon iskar-man kusa da rabon iskar-man fetur na ka'ida ba lokacin da yanayin aikin injin ya lalace, yayin da na'urar firikwensin iskar oxygen ta titanium dioxide kuma tana iya sarrafa ainihin rabon iskar-man fetur kusa da rabon iskar-man fetur na ka'ida lokacin da yanayin aikin injin ya lalace.
Ana kiran ƙarar allurar (faɗin bugun allurar) da na'urar sarrafawa ta daidaita a cikin ɗan gajeren lokaci bisa ga siginar firikwensin iskar oxygen, wanda ƙarfin fitarwa na firikwensin iskar oxygen ke sarrafawa.
Gyaran mai na dogon lokaci shine ƙimar da aka ƙayyade ta hanyar gyaran tsarin bayanan aiki na sashin sarrafawa bisa ga canjin ma'aunin gyaran mai na ɗan gajeren lokaci.
Laifi na yau da kullun
Da zarar na'urar firikwensin iskar oxygen ta gaza, kwamfutar tsarin allurar mai ta lantarki ba za ta iya samun bayanai game da yawan iskar oxygen a cikin bututun hayaki ba, don haka ba za ta iya mayar da martani kan rabon iska da mai ba, wanda zai ƙara yawan amfani da man fetur na injin da gurɓataccen hayaki, kuma injin zai bayyana saurin aiki mara ƙarfi, rashin wuta, ƙaruwar hayaki da sauran abubuwan da suka faru na kurakurai. Saboda haka, dole ne a cire ko a maye gurbin matsalar a kan lokaci [1].
Laifi na guba
Gubar na'urar auna iskar oxygen abu ne mai yawan gaske kuma mai wahalar hana lalacewa, musamman yawan amfani da motocin mai da gubar, har ma da sabbin na'urorin auna iskar oxygen, zai iya aiki na tsawon kilomita dubu kaɗan kawai. Idan ƙaramin gubar gubar ne kawai, to amfani da tankin mai da babu gubar zai iya kawar da gubar da ke saman na'urar auna iskar oxygen kuma ya dawo da ita yadda take aiki. Duk da haka, sau da yawa saboda yawan zafin shaye-shaye, gubar tana shiga cikin ciki, tana hana yaɗuwar ions na iskar oxygen, tana sa na'urar auna iskar oxygen ta yi aiki ba tare da tasiri ba, a lokacin ana iya maye gurbinta ne kawai.
Bugu da ƙari, gubar silicon ga na'urorin auna iskar oxygen shi ma abu ne da ya zama ruwan dare. Gabaɗaya, silica da ake samarwa bayan konewar mahaɗan silicon da ke cikin fetur da man shafawa, da kuma iskar silicone da ake fitarwa ta hanyar amfani da gaskets na roba na silicone ba daidai ba zai sa na'urar auna iskar oxygen ta lalace, don haka ya kamata a yi amfani da mai mai inganci da man shafawa.
Lokacin gyarawa, ya zama dole a zaɓi da kuma shigar da gaskets na roba daidai, kada a shafa abubuwan narkewa da abubuwan hana mannewa banda waɗanda masana'anta suka ƙayyade akan firikwensin, da sauransu. Saboda ƙarancin ƙonewar injin, ana samun ma'adinan carbon a saman firikwensin oxygen, ko kuma a shigar da mai ko ƙura da sauran laka a cikin firikwensin oxygen, wanda zai hana ko toshe iskar waje zuwa cikin firikwensin oxygen, don haka siginar fitarwa na firikwensin oxygen ba ta daidaita ba. ECU ba zai iya gyara rabon iska da mai a kan lokaci ba. Samar da ma'adinan carbon galibi yana bayyana ne a matsayin ƙaruwar amfani da mai da kuma ƙaruwa mai yawa a cikin yawan fitar da hayaki. A wannan lokacin, idan aka cire laka, zai koma aiki na yau da kullun.
Fashewar yumbu
Yumbun da ke cikin na'urar firikwensin iskar oxygen yana da tauri da karyewa, kuma buguwa da abubuwa masu tauri ko kuma iska mai ƙarfi na iya sa shi ya ruguje ya lalace. Saboda haka, ya zama dole a yi taka tsantsan musamman lokacin da ake magance matsaloli kuma a maye gurbinsu da lokaci.
An ƙone wayar toshe
Ana ƙone wayar juriyar hita. Ga na'urar firikwensin iskar oxygen mai zafi, idan wayar juriyar hita ta ƙone, yana da wuya a sa na'urar firikwensin ta kai yanayin aiki na yau da kullun kuma ta rasa aikinsa.
Katsewar layi
An katse da'irar ciki ta na'urar firikwensin iskar oxygen.
Hanyar dubawa
Duba juriyar hita
Cire toshewar maƙallin firikwensin iskar oxygen, sannan ka yi amfani da na'urar multimeter don auna juriya tsakanin sandar hita da sandar ƙarfe a cikin tashar firikwensin iskar oxygen. Ƙimar juriya ita ce 4-40Ω (duba umarnin takamaiman samfurin). Idan bai cika ƙa'idar ba, maye gurbin firikwensin iskar oxygen.
Ma'aunin ƙarfin amsawa
Lokacin auna ƙarfin amsawa na firikwensin iskar oxygen, ya kamata a cire haɗin kebul na firikwensin iskar oxygen, sannan a zana siririn waya daga tashar fitarwa na ƙarfin amsawa na firikwensin iskar oxygen bisa ga zane na da'ira na samfurin, sannan a haɗa firikwensin abin ɗaurewa. Ana iya auna ƙarfin amsawa daga layin jagora yayin aikin injin (wasu samfura kuma suna iya auna ƙarfin amsawa na firikwensin iskar oxygen daga soket ɗin gano lahani). Misali, jerin motoci da Kamfanin Toyota Motor ya samar na iya auna ƙarfin amsawa na firikwensin iskar oxygen kai tsaye daga tashoshin OX1 ko OX2 a cikin soket ɗin gano lahani).
Lokacin auna ƙarfin amsawar na na'urar firikwensin iskar oxygen, ya fi kyau a yi amfani da na'urar multimeter mai nau'in nuni tare da ƙaramin kewayon (yawanci 2V) da babban juriya (juriya ta ciki fiye da 10MΩ). Takamaiman hanyoyin ganowa sune kamar haka:
1. Juya injin ɗin zuwa zafin aiki na yau da kullun (ko kuma a yi aiki a 2500r/min bayan farawa na tsawon minti 2);
2. Haɗa alkalami mara kyau na tasha ta ƙarfin lantarki mai yawa zuwa E1 ko kuma wutar lantarki mara kyau na baturin da ke cikin soket ɗin gano lahani, da kuma alkalami mai kyau zuwa jack ɗin OX1 ko OX2 a cikin soket ɗin gano lahani, ko kuma zuwa lambar | akan toshe igiyar waya na firikwensin oxygen.
3, bari injin ya ci gaba da aiki a gudun kimanin 2500r/min, kuma a duba ko na'urar auna voltmeter za ta iya juyawa baya da gaba tsakanin 0-1V, sannan a rubuta adadin juyawar na'urar auna voltmeter a cikin 10s. A cikin yanayi na al'ada, tare da ci gaban sarrafa martani, ƙarfin amsawar na'urar firikwensin iskar oxygen zai ci gaba da canzawa sama da ƙasa da 0.45V, kuma ƙarfin amsawar ya kamata ya canza aƙalla sau 8 cikin 10s.
Idan ƙasa da sau 8, yana nufin cewa na'urar firikwensin iskar oxygen ko tsarin sarrafa amsawar ba ta aiki yadda ya kamata, wanda hakan na iya faruwa ne sakamakon tarin carbon a saman na'urar firikwensin iskar oxygen, don haka rage ƙarfin amsawar. Don haka, ya kamata a kunna injin a 2500r/min na kimanin mintuna 2 don cire ajiyar carbon a saman na'urar firikwensin iskar oxygen, sannan a duba ƙarfin amsawar. Idan na'urar firikwensin voltmeter har yanzu tana canzawa a hankali bayan an cire carbon, yana nuna cewa na'urar firikwensin iskar oxygen ta lalace, ko kuma da'irar sarrafa amsawar kwamfuta ta lalace.
4, duba launi na firikwensin iskar oxygen
Cire na'urar firikwensin iskar oxygen daga bututun shaye-shaye sannan a duba ko ramin iskar da ke kan gidan firikwensin ya toshe kuma tsakiyar yumbu ya lalace. Idan ya lalace, a maye gurbin na'urar firikwensin iskar oxygen.
Ana iya tantance kurakurai ta hanyar lura da launin saman ɓangaren firikwensin iskar oxygen:
1, saman launin toka mai haske: wannan shine launin da aka saba gani na na'urar firikwensin iskar oxygen;
2, farin saman: wanda gurɓataccen silicon ya haifar, dole ne a maye gurbin na'urar firikwensin iskar oxygen a wannan lokacin;
3, saman launin ruwan kasa (kamar yadda aka nuna a Hoto na 1): gurɓatar gubar da ke haifarwa, idan ta yi tsanani, dole ne ta maye gurbin na'urar firikwensin iskar oxygen;
(4) Baƙin saman: wanda ya faru sakamakon ajiyar carbon, bayan an kawar da matsalar ajiyar carbon na injin, gabaɗaya ana iya cire ajiyar carbon akan firikwensin oxygen ta atomatik.
Idan kana son ƙarin bayani, ci gaba da karanta sauran labaran da ke wannan shafin!
Don Allah a kira mu idan kuna buƙatar irin waɗannan kayayyaki.
Kudin hannun jari Zhuo Meng Shanghai Auto Co., Ltd.tana da niyyar sayar da kayayyakin motar MG&MAUXS.siya.
