Cov tsiaj ntawv B thiab K ntawm lub tshuab hluav taws xob txhais li cas?

Thaum muaj xws li kev puas tsuaj nyob rau hauv lub lag luam ntawm lub internal combustion engine raws li ib tug ploj ntawm lub txim los yog ib tug qaug zog spark, tsis ruaj tsis khov, tsis muaj peev xwm los kho lub idle ceev, nyuaj pib los yog tsis muaj peev xwm mus pib lub internal combustion engine, dips thiab jerks thaum. pib tawm thiab nyob rau hauv tsab ntawv tsa suab, thiab lwm yam, ces nws ua rau kev txiav txim siab qhov kev ua tau zoo ntawm lub ignition coil . Txhawm rau ua qhov no, koj yuav tsum paub cov npe ntawm cov ntawv B thiab K ntawm lub kauj.

Cov tsiaj ntawv B thiab K ntawm lub tshuab hluav taws xob txhais li cas?

Rau lub davhlau ya nyob twg nrog + kos npe lossis tsab ntawv B (battery) yog siv los ntawm lub roj teeb, nrog tsab ntawv K hloov yog txuas. Cov xim ntawm cov xov hlau hauv tsheb tuaj yeem sib txawv, yog li nws yooj yim tshaj los taug qab qhov twg mus qhov twg.

* Ignition coils yuav txawv nyob rau hauv winding kuj.

Yuav ua li cas txuas lub ignition coil kom raug?

Txawm hais tias cov yam ntxwv ntawm lub tsheb, kev sib txuas yog tib yam:

• cov hlau los ntawm lub xauv yog xim av thiab txuas nrog lub davhlau ya nyob twg nrog "+" kos npe (ntawv B);
• cov hlau dub uas los ntawm qhov loj yog txuas nrog "K";
• lub davhlau ya nyob twg thib peb (hauv lub hau) yog rau cov xaim hluav taws xob siab.

Npaj rau daim tshev

Txhawm rau txheeb xyuas qhov hluav taws xob hluav taws xob, koj yuav xav tau lub nplhaib 8 hli lossis qhib qhov kawg, nrog rau lub ntsuas ntsuas (multimeter lossis cov cuab yeej zoo sib xws) nrog hom ohmmeter.

Koj tuaj yeem kuaj xyuas lub ignition coil yam tsis tau tshem tawm ntawm lub tsheb:

• tshem tawm lub davhlau ya nyob twg tsis zoo ntawm lub roj teeb;
• disconnect lub high-voltage hlau los ntawm ignition kauj;
• disconnect cov xov hlau uas ua rau ob lub terminals ntawm lub kauj.

Txhawm rau ua qhov no, siv 8 mm wrench kom tshem tawm cov txiv ntseej uas tuav cov xov hlau mus rau lub terminals. Peb disconnect cov xov hlau, nco ntsoov lawv txoj haujlwm, thiaj li tsis txhob cuam tshuam lawv thaum txhim kho lawv rov qab.

kauj diagnostics

Peb tshawb xyuas qhov kev pabcuam ntawm thawj winding ntawm ignition coil.

Txhawm rau ua qhov no, peb txuas ib qho kev sojntsuam ntawm lub tester mus rau qhov tso zis "B", qhov thib ob sojntsuam mus rau qhov tso zis "K" - cov zis ntawm thawj winding. Peb qhib lub cuab yeej hauv hom ohmmeter. Qhov kev tiv thaiv ntawm kev noj qab haus huv thawj winding ntawm ignition kauj yuav tsum nyob ze rau xoom (0,4 - 0,5 ohms). Yog tias qis dua, ces muaj qhov luv luv, yog tias siab dua, muaj qhov qhib rau hauv winding.

Peb xyuas cov kev pabcuam ntawm cov theem nrab (high-voltage) winding ntawm lub ignition kauj.

Txhawm rau ua qhov no, peb txuas ib qho kev sojntsuam mus rau "B" davhlau ya nyob twg ntawm lub tshuab hluav taws xob hluav taws xob, thiab qhov thib ob sojntsuam rau cov zis rau cov xaim hluav taws xob siab. Peb ntsuas qhov tsis kam. Rau kev ua haujlwm thib ob winding, nws yuav tsum yog 4,5 - 5,5 kOhm.

Tshawb xyuas cov rwb thaiv tsev tiv thaiv hauv av. Rau xws li ib tug kos, nws yog tsim nyog hais tias lub multimeter muaj ib tug megohmmeter hom (los yog ib tug nyias muaj nyias ib megohmmeter yuav tsum tau) thiab yuav ntsuas qhov tseem ceeb kuj. Txhawm rau ua qhov no, peb txuas ib qho kev sojntsuam mus rau qhov "B" davhlau ya nyob twg ntawm lub ignition coil, thiab nias qhov thib ob sojntsuam rau nws lub cev. Lub rwb thaiv tsev tiv thaiv yuav tsum siab heev - 50 mΩ lossis ntau dua.

Yog tias tsawg kawg yog ib qho ntawm peb qhov kev kuaj xyuas pom tias muaj kev ua haujlwm tsis zoo, ces lub ignition coil yuav tsum tau hloov.