Lambda Probe, qanday qilib kislorod sensori?

Avtomobilning egzoz tizimi va Lambda Probe chambarchas bog'liq. Shuni tushunish kerakki, ushbu qurilmaning mashinada mavjudligi boshqa yuqori texnologik sensorlar kabi printsipial emas. Ha, bu sensorlar, chunki Lambda Probe hali ham boshqa kislorod sensori (O 2-sensor) deb nomlangan. Ushbu sensorning xizmat vazifasi avtomobilning yoqilg'i tizimining umuman ta'siriga olib keladi, shuning uchun Lamma Probe-ning cheklanishi kamida o'n ming kilometr masofada joylashgan bo'lishi kerak. Ko'plab avtoulovchilar 2 ta sensor va katalizator ishda yaqindan o'zaro bog'liq deb hisoblashadi, ammo bu juda to'g'ri fikr emas. Qoida tariqasida katalizator Lambda Probedan keyin o'rnatilgan va uning ishlashiga ta'sir qilmaydi. Biroq, kislorod sensori mavjudligi katalizatorning ishlashini sezilarli darajada kengaytiradi, chunki uning xizmat ko'rsatish muddati to'g'ridan-to'g'ri yong'in aralashmasi sifatiga bog'liq. Bu haqda maqolada.

Lambda Probe qurilmasi

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Kislorod sensori ishlash printsipi

Kislorodlilik dizaynida bunday komponentlar mavjud:

  1. Xo'rinlarni chiqarish uchun maxsus teshik bilan himoya qalqon.
  2. Spiral maxsus suv ombori.
  3. Keramik uch.
  4. O'tkazuvchan aloqa.
  5. Teshik qazilgan himoya uy-joy.
  6. Muhrlash uchun maxsus perular bilan simlar.
  7. Muhr (halq).
  8. Keramik izolyator.
  9. Maydalangan o'yma bilan metall salon.
Kislorod sensori qurilmasi
Kislorod sensori qurilmasi

Ushbu sensorlarning o'ziga xos xususiyati - faqat issiqlikka chidamli materiallar ishlab chiqarish uchun ishlatiladi, chunki ular yuqori haroratlarda ishlashi kerak.

Ish lambda Probe

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Mashinada kislorod sensori joylashgan joy

Lambda Probe asoslari elektropelting effektining fenomeniga asoslanadi. Ushbu hodisaning ma'nosi, egzoz gazlari va sensor elementlarida toza atmosfera havosini taqqoslashda, kuchlanish paydo bo'ladi. Bu murakkab jismoniy jarayonlarning yordami bilan sodir bo'ladi, bu esa bu erda e'tiborga olinmaydi.

Katalizator kislorod sensori emulyatori
Katalizator kislorod sensori emulyatori

Kislorodlilik sensori oqimi voltaj indikatsiyasiga qarab yonib turuvchi aralashmaning tarkibini o'zgartiradigan kompyuterga kiradi. Lambda Probe faqat yuqori haroratlarda (300-400 daraja) ishlaydi, shundan keyingina sensorda elektr toki sensor va galvanik elementlar ishlab chiqariladi.

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Sovuq dvigatelda, yonuvchan aralashma boshqa sensorlarning guvohligida shakllanadi va Lambda Probe avtomatik ravishda ishlay boshlaydi. Ba'zi transport o'rnatilgan 2-dyuymga o'rnatilgan, u hali ham avtoulovning ishlashining dastlabki bosqichida yuqori sifatli yonuvchan aralashmani oxirgi etkazib berishni ta'minlaydi.

Agar 2-sensor 40-70 ming kilometr kilometrlik kilometretr bilan shug'ullanadigan bo'lsa, Lambda tekshiruvi resurslari sezilarli darajada katta.

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Lambda kislorodlilik sensori probe, chunki u yoqilg'i aralashmasining tarkibiga ta'sir qiladi

Gazolin yonishidan so'ng, gazlar benzin kollatisti oldida kislorod sensori ekoldercatorga tushadi. U chiqindining sifat ko'rsatkichlari, xususan atmosfera havosidagi 2-sonli tarkib bilan taqqoslaganda, qoldiq kislorod miqdorini olib tashlaydi.

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Ushbu ko'rsatkich juda muhimdir, chunki kompyuterda motorning eng yuqori samaradorligi uchun yonilg'i va kislorodni hosil qilish uchun yoqilg'i va kislorodning maqbul nisbati hisobni ochadi.

Ikkinchi Lambda tekshiruvi katalizatordan keyin kompyuterga aniqroq hisob-kitoblar bilan jihozlashga imkon beradi, ammo bizning davrimizda bu kamdan-kam hollarda.

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Ta'kidlash joizki, barcha hisob-kitoblar bitta muhim ko'rsatkichga asoslangan - yoqilg'ining bir qismining samarali yonishi kislorodning 14,7 qismini ta'minlashga qodir.

Lambda Probe, qurilmalar turlari

Tizimga kislorod sensori ulangan simlar soniga qarab, ushbu qurilmalarning to'rt turi mavjud:

  1. To'rt sim.
  2. Uch simi.
  3. Ikki sim.
  4. Yagona sim.

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Kislorod Lambda tekshiruvining sensori zarar etkazadi va operatsiya paytida mashinaga tahdid soluvchi

Ko'rsatmalarga ko'ra, kislorod sensori taqsimlanishi:

  1. Turli xil texnologik suyuqlik va axloqsizlik uylariga mos keladi.
  2. Yondashuvda etakchilik tarkibini oshiradi.
  3. Kamdan-kam hollarda Lambda Probe tarkibiy qismlarini haddan tashqari qizib ketishiga olib kelmaydigan yuqori oktan raqami bilan yoqilg'i ishlatish.
  4. Sifatsiz yoqilg'i.

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Bu yoqimsiz oqibatlar, ya'ni:

  1. Kamaytirilgan kuch.
  2. Tayoqlar harakatda.
  3. Motorli aylanma aylanmasi.
  4. Haddan tashqari ifloslangan chiqindi gazlarning ko'rinishi.
  5. Noto'g'ri katalizator.
  6. Injektorning noto'g'ri ishlashi.
  7. Katta yoqilg'i sarfi.
  8. Avtomatik uzatish bilan avtomatik ravishda uzatgichlar bilan almashtirish mashinani urib, mashinani urib bo'ladi.

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Lambda Probe, sensorning sog'lig'ini vizual usul, sabablar va oqibatlar bilan tekshirish:
Sensorda axloqsizlik, yasalgan va jabduqlar

Kislorod sensorini asboblar yordamida tekshirishdan oldin, birinchi navbatda uning vizual tekshiruvini, axloqsizlik va sensorda garni tekshirish tavsiya etiladi.

Sabablar - bu Lambda Probe-ning haddan tashqari qizib ketishi, qayta kiritilgan yonbaladigan aralashmaning yonishi.
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Natijalar - kislorod sensori, bularni kompyuterga kechiktirish va kechki kuchlanish almashtirishning kechikishi.

sensorda sero-oq cho'kma

Sabablar - yonilg'i va moylarda har xil turdagi qo'shimchalarni ishlatish.

Oqibatlari - yoqilg'i tizimining noto'g'ri ishlashi talab qilinadi.

Kislorod sensori ustidagi savdo va ngar
Kislorod sensori ustidagi savdo va ngar

sensor yorqin omonatlari

Sababi - bu yoqilg'ining juda ko'p.

Oqibatlari - yoqilg'i tizimining noto'g'ri ishlashi talab qilinadi.

Rangli omonatlar
Sero-oq konlar

Kislorodlilik sensori Lambda Probe, xizmatni asboblar bilan tekshirish, cheklangan yoqilg'i aralashmasi uchun voltimetrni tekshirish paytida batafsil operatsiya

Tekshiruv paytida faqat asboblar yordamida kislorodlilik sensori tekshirishi, yuqorida ko'rsatilgan kamchiliklar vizual tekshirish paytida aniqlanmadi. Aks holda, Lambda Probe shunchaki yangisini o'zgartiradi.

Ilovalar yordamida Lambda Probe-ni tashxislash uchun quyidagilar qo'llaniladi:

  1. Tajribali drayverlar - ocilloskop.
  2. Standart tekshiruvlar uchun - voltimetr, yaxshiroq - raqamli.
  3. Tabiiy, bilim.
Lambda Probe Voltmeterni tekshiring
Lambda Probe Voltmeterni tekshiring

Keyin biz shu tarzda harakat qilamiz:

  1. Lambda Probe-ni simlar bilan o'chiring.
  2. Uni voltmetrga ulang.
  3. Biz motorni boshlaymiz va isitamiz.
  4. Biz 2000-2600 gacha bo'lgan dvigatel tezligini oshiramiz, shundan so'ng biz keskin gaz pedalini keskin tashlaymiz.
  5. Vakuum bosimli bosimni tartibga solishdan, naychani olib tashlang.
  6. Biz kuchlanishni 0,45-0,8 vattni tashkil etadigan kuchlanishni o'lchaymiz.

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Tuvbog 'yordamida bukilgan naychasidan olib tashlangan holda biz sun'iy aviaturani yaratamiz. Chiqish kuchlanishi 0,2 Vtdan kam bo'lsa, unda sensor ishlamoqda.

Kislorod sensori ishlashini tekshirish, ulagichlar mos keladigan bo'lsa, uni boshqa transport vositasiga o'zgartiring. Oilada ikkita mashina bor joyda ushbu sinov usuli qo'llanilmaydi.

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Osianoskop tekshiring, grafikani oching

Ushbu tekshiruvning asosiy afzalligi - bu chiqish kuchlanishining o'zgarishi vaqtini belgilash qobiliyati. Ushbu muhim ko'rsatkichi faqat ostiloskop tomonidan o'rnatiladi va 120 metrdan oshmasligi kerak. Quyidagi rasm kislorod sensori to'g'ri ishlashini ko'rsatadi.

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Ko'rib turganingizdek, kuchlanish 0,1-0,75 gacha o'zgarib turadi. Rasmdagi vaqt ko'rinmaydi, ammo yuqorida ko'rsatilganidek, u 120 ms dan oshmasligi kerak. Quyidagi rasmda butunlay boshqacha rasm mavjud.

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Bu erda chiqish kuchlanishi 0-1-dan pastga tushirilganligi ko'rinib turibdi. Bu Lambda Probe noto'g'ri ekanligini va almashtirilishi haqida aytilgan. Kislorodlilik sensori, qoida tariqasida, "Tekshirish mexanizmi" displeyda.

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Ushbu raqamda, chiqindidagi kislorod miqdorining o'zgarishi bo'yicha lambda-probe-ning sekin harakatlanishi osianoskop bilan ko'rsatilgan. U 120 ms dan oshadi. Avtoulovlarni boshqarish tizimi ushbu nosozlikni belgilashga qodir emas va nazorat dvigatelining xatosi boshqaruv panelida ko'rinmaydi. Ushbu nosozlikning asosiy oqibatlari - bu motorning kuchini kamaytirish va yoqilg'i sarfini ko'paytirishdir.

Tarifni yaxshilash: qanday qilib cheklash kerak

Barcha cheklar faqat 2000-2600 inoliuslari bilan isitiladigan vositada amalga oshiriladi. Lambda tekshiruvidan farqli o'laroq, lamma Probe-ni boshqaruvchidan o'chirilgan bo'lsa, opiloskopni tekshirishda tarmoqdan kislorod sensori kerak emas.

Ostiloskop Probe 2 sensor ogohlantirish simlari va o'qishlari olib tashlandi. Ulagichlarning joylashuvi quyidagi rasmda ko'rish mumkin.

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Quyidagi raqamda siz kislorod sensorlari ulagichlari, simsiz ranglar va ulanish bilan tanishishingiz mumkin.

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Xulosa va tavsiyalar

Kislorod sensorini tekshirish kerak, chunki ishlamay qolishning oqibatlari tanqidiy bo'lishi mumkin, shuningdek transport vositasini to'liq to'xtata oladi. Ushbu qurilmani almashtirishda yangi analogdan foydalanish yaxshiroq, chunki siz ushbu modeldan signal olish uchun mashinangiz kompyuteringiz o'rnatilgan.

Shuni ta'kidlash kerakki, ba'zi avtoulov egalari haligacha arzon kislorodlilik sensorlari uchun noto'g'ri kislorod sensining o'rniga xavf ostida qolishadi. Masalan, Moskvich avtomobillari uchun Vazning 2 ga yaqin distamus bo'limi no'v ishlab chiqaradi. U shuningdek ularni ford avtomobillar uchun ishlab chiqaradi, shuning uchun Evropa sifat standartlari. Binobarin, transport vositasi uchun Vaz avtomobillari uchun qilingan qurilmaning analogini sotib olishingiz mumkin. Eng muhimi, kontaktlar soni bir xil.

Izohlar