Diagnostics ntawm lub ignition system
Txheem
Feem ntau yog vim li cas lub tsheb tsis pib yog teeb meem nrog nws cov ignition system. Txhawm rau txheeb xyuas qhov teeb meem, koj yuav tsum tau ignition diagnostics. Qee lub sij hawm nws tsis yooj yim los ua qhov no, vim hais tias, thawj zaug, muaj ntau tus kab mob nodes (cov teeb meem tuaj yeem yog tswm ciab, ntau yam sensors, distributor thiab lwm yam), thiab qhov thib ob, rau qhov no koj yuav tsum siv cov khoom siv ntxiv - lub cev muaj zog tester, ohmmeter, scanner txhawm rau txheeb xyuas qhov tsis raug ntawm cov tshuab nruab nrog ECU. Cia peb saib cov xwm txheej no kom ntxaws ntxiv.
Tsheb ignition system
Cov lus pom zoo dav dav thaum muaj kev tawg
Feem ntau, kev tawg ntawm lub tsheb ignition system yog txuam nrog kev ua txhaum ntawm qhov zoo ntawm cov hluav taws xob sib txuas hauv Circuit Court, los yog tam sim no to hauv high-voltage nyob ntawm tej. Cia peb luv luv sau dab tsi koj yuav tsum tau ua ntej yuav tsum tau them sai sai rau yog tias muaj teeb meem tshwm sim hauv kev ua haujlwm ntawm lub tsheb qhov hluav taws xob, nrog rau dab tsi algorithm los ua.
- Xyuas lub xeev ntawm cov nqi ntawm lub roj teeb nrog lub voltmeter. Qhov voltage ntawm nws yuav tsum yog tsawg kawg yog 9,5 V. Txwv tsis pub, lub roj teeb yuav tsum tau them los yog hloov.
- Txheeb xyuas qhov zoo ntawm cov neeg sib cuag ntawm lub coil module ntawm txhua lub txim hluav taws xob.
- Xyuas tag nrho cov tswm ciab. Lawv yuav tsum tsis txhob muaj cov deposits dub tseem ceeb, thiab qhov kev ncua deb ntawm cov electrodes yuav tsum yog li ntawm 0,7 ... 1,0 hli.
- Tshem tawm thiab xyuas cov camshaft thiab crankshaft sensors. Yog tias tsim nyog, lawv yuav tsum tau hloov.
Feem ntau, cov teeb meem nyob rau hauv kev ua txhaum ntawm qhov zoo ntawm cov neeg sib cuag los yog cov to ntawm tam sim no nyob rau hauv high-voltage nyob ntawm tej. Txheeb xyuas lawv cov rwb thaiv tsev, qhov xwm txheej ntawm qhov hluav taws xob hluav taws xob, hluav taws xob ntsuas hluav taws xob, coil fuse.
Tej Yam Uas Ua Phem
Kev puas tsuaj high voltage ignition hlau
Feem ntau, kev puas tsuaj nyob rau hauv lub ignition system tshwm sim nyob rau hauv kev sib cuag ntawm cov hluav taws xob circuits, nrog rau cov kab hluav taws xob siab. Feem ntau, vim yog kev puas tsuaj ntawm lawv cov rwb thaiv tsev, lub txim taws tawg los ntawm lub cev, uas ua rau muaj teeb meem hauv kev ua haujlwm ntawm lub tshuab hluav taws xob sab hauv. Nws yog qhov zoo los xyuas qhov punched rwb thaiv tsev ntawm high-voltage nyob ntawm qhov tsaus ntuj. Tom qab ntawd lub txim tshwm sim yog pom meej.
Nco ntsoov saib xyuas purity ntawm rwb thaiv tsev cov kab hluav taws xob siab. Qhov tseeb. tias cov roj uas tau txais ntawm lawv qhov chaw zoo heev softens lub rwb thaiv tsev, thiab nyiam cov khoom ntawm cov plua plav thiab av rau nws, uas tuaj yeem ua rau lub txim tawg.
Ntawm cov insulators ntawm cov tswm ciab, "txoj kev" yuav tshwm sim raws li qhov kev tawg dhau mus. Yog hais tias lub hwj chim tsis haum rau high voltage nyob ntawm tej, ces koj yuav tsum tau mus xyuas qhov tsawg voltage qhov chaw ntawm lub ignition system, namely, lub voltage mov ntawm lub roj teeb mus rau lub ignition kauj. Kev ua haujlwm tsis zoo tuaj yeem yog qhov hloov hluav taws xob lossis lub tshuab hluav taws xob.
Txim txim plug
spark plug electrodes
Feem ntau qhov ua rau malfunctions nyob rau hauv lub system yog teeb meem nrog spark plugs. Ntawm lub tswm ciab zoo:
- cov electrodes ntawm nws tsis hlawv, thiab qhov sib txawv ntawm lawv yog 0,7 ... 1,0 hli;
- tsis muaj khawb dub, chips ntawm insulator ntawm rooj plaub;
- tsis muaj cov tsos mob ntawm burnout nyob rau sab nrauv insulator ntawm lub tswm ciab, nrog rau cov kab nrib pleb los yog cov neeg kho tshuab puas.
Koj tuaj yeem nyeem cov ntaub ntawv hais txog yuav ua li cas los txiav txim siab nws tus mob los ntawm cov tswm ciab ntawm lub tswm ciab thiab kuaj xyuas lub tshuab hluav taws xob sab hauv hauv ib tsab xov xwm cais.
Ignition tsis zoo
Tus kheej misfires tuaj yeem tshwm sim rau ob yam:
- kev sib txuas tsis ruaj tsis khov lossis tsis muaj qhov tsis zoo nyob rau hauv qhov qis-voltage ntawm qhov hluav taws xob hluav taws xob;
- tawg ntawm high-voltage Circuit Court ntawm lub ignition system los yog kev puas tsuaj rau lub slider.
Slider thiab distributor cover
Yog vim li cas rau lub misfire tej zaum yuav breakdowns nyob rau hauv lub lag luam ntawm lub crankshaft thiab camshaft txoj hauj lwm sensors (koj tuaj yeem pom yuav ua li cas xyuas Hall sensor hauv ib tsab xov xwm cais).
Ntawm cov tsheb carbureted, qhov teeb meem yog distributor cover. Feem ntau tawg lossis puas tsuaj tshwm rau ntawm nws. Kev kuaj mob yuav tsum tau ua ntawm ob sab, tom qab so nws los ntawm plua plav thiab av. Nws yog ib qho tsim nyog yuav tsum tau them sai sai rau qhov muaj peev xwm ntawm cov kab nrib pleb, cov pa roj carbon monoxide, kev sib cuag kub hnyiab thiab lwm yam tsis xws luag. Koj kuj yuav tsum tau kuaj xyuas qhov xwm txheej ntawm cov txhuam hniav, thiab qhov nruj ntawm lawv cov nias tawm tsam qhov sib cuag ntawm tus swb. Thaum kawg ntawm kev kho dua tshiab, nws yog ib qho tsim nyog yuav tsum tau tshuaj tsuag qhov saum npoo ntawm qhov system nrog lub desiccant.
Kev raug cov kauj
Ib qho ua rau muaj teeb meem hauv qhov system yog qhov hluav taws xob hluav taws xob (tom qab luv luv Circuit Court). Nws txoj hauj lwm yog tsim los ntawm high-voltage tawm ntawm lub txim plug. Cov coils yog structurally txawv. Cov tshuab qub siv coils nrog ib qho winding, ntau cov niaj hnub siv cov ntxaib lossis monolithic modules uas muaj cov xaim hluav taws xob thiab cov lugs. Tam sim no, coils feem ntau ntsia rau txhua lub tog raj kheej. Lawv tau nruab rau ntawm cov tswm ciab, lawv cov qauv tsim tsis muab rau kev siv cov xov hlau hluav taws xob thiab cov lus qhia.
Kev raug cov kauj
Ntawm cov tsheb qub, qhov chaw luv luv tau nruab rau hauv ib daim ntawv, nws tsis ua haujlwm (winding breakage lossis luv Circuit Court nyob rau hauv nws) cia li coj mus rau qhov tseeb tias lub tsheb tsuas yog tsis pib. Ntawm cov tsheb niaj hnub, thaum muaj teeb meem ntawm ib qho ntawm cov coils, lub tshuab hluav taws xob sab hauv pib "troit".
Koj tuaj yeem kuaj xyuas lub ignition coil hauv ntau txoj hauv kev:
- kev tshuaj xyuas qhov muag;
- siv lub ohmmeter;
- Nrog kev pab los ntawm lub cev muaj zog-tester (oscillograph).
Thaum kuaj pom, nws yuav tsum ua tib zoo tshuaj xyuas cov khoom tam sim no-insulating. Lawv yuav tsum tsis txhob muaj cov kab nrib pleb, nrog rau cov kab nrib pleb. Yog tias thaum lub sijhawm tshuaj xyuas koj tau txheeb xyuas qhov tsis xws luag, qhov no txhais tau tias lub kauj yuav tsum tau hloov pauv.
Diagnostics ntawm ignition malfunctions yuav ntsuas lub rwb thaiv tsev tiv thaiv ntawm lub hauv paus thiab theem nrab windings ntawm lub ignition kauj. Koj tuaj yeem ntsuas nws nrog ohmmeter (multimeter kev khiav hauj lwm hauv kev ntsuas qhov ntsuas), los ntawm kev ntsuas ntawm cov terminals ntawm windings.
Cov ncauj lus kom ntxaws txog kev kuaj xyuas yog nthuav tawm hauv kab lus hais txog yuav ua li cas txhawm rau txheeb xyuas lub ignition coil. Thiab txoj kev raug thiab zoo tshaj plaws rau kev kuaj xyuas qhov hluav taws xob hluav taws xob thiab tag nrho cov txheej txheem yog ua los ntawm kev siv lub cev muaj zog (oscilloscope).
Diagnostics ntawm ignition module
ICE ignition module
Cov kev kuaj mob hais txog yuav tsum tau ua thaum muaj teeb meem hauv qab no tshwm sim:
- unstable idling ntawm lub internal combustion engine;
- lub cev muaj zog tsis ua haujlwm hauv hom acceleration;
- ICE triples lossis ob npaug.
Qhov zoo tshaj plaws, tus kws tshaj lij scanner thiab lub tshuab ntsuas lub cev yuav tsum tau siv los kuaj xyuas qhov ntsuas hluav taws xob. Txawm li cas los xij, vim tias cov cuab yeej no kim heev thiab tsuas yog siv hauv cov chaw pabcuam kev tshaj lij xwb, nws tseem ua tau rau tus neeg tsav tsheb zoo tib yam los kuaj xyuas qhov hluav taws xob hluav taws xob nkaus xwb nrog txhais tau tias improvised. Namely, muaj peb txoj hauv kev pov thawj:
- Hloov lub module nrog ib tug paub ua hauj lwm. Txawm li cas los xij, muaj ntau yam teeb meem ntawm no. Thawj yog qhov tsis muaj tsheb pub dawb. Qhov thib ob yog tias lwm qhov module yuav tsum tau raws nraim tib yam li qhov raug kuaj xyuas. Qhov thib peb - high-voltage xov hlau yuav tsum paub tias nyob rau hauv zoo. Yog li ntawd, txoj kev no tsis tshua siv.
- Module co txoj kev. Txhawm rau kuaj xyuas cov node, koj tsuas yog yuav tsum tau txav lub thaiv ntawm cov xov hlau, nrog rau lub module nws tus kheej. Yog hais tias nyob rau tib lub sij hawm cov kev khiav hauj lwm hom ntawm lub internal combustion engine hloov noticeably, qhov no txhais tau hais tias qhov chaw muaj ib tug phem kev sib cuag uas yuav tsum tau kho.
- Kev ntsuas ntsuas. Txhawm rau ua qhov no, koj yuav xav tau ohmmeter (ib qho multimeter uas ua haujlwm hauv kev ntsuas hluav taws xob tsis zoo). Cov kev sojntsuam ntawm cov cuab yeej ntsuas qhov tsis kam ntawm cov terminals ntawm 1 thiab 4, thiab 2 thiab 3 lub tog raj kheej. Tus nqi kuj yuav tsum yog tib yam. Raws li rau nws qhov loj me, nws tuaj yeem sib txawv rau cov tshuab sib txawv. Piv txwv li, rau VAZ-2114, tus nqi no yuav tsum nyob rau hauv cheeb tsam ntawm 5,4 kOhm.
Hluav taws xob tswj qhov system DVSm
Yuav luag txhua lub tsheb niaj hnub no tau nruab nrog lub tshuab hluav taws xob tswj (ECU). Nws cia li xaiv qhov zoo tshaj plaws kev khiav hauj lwm tsis rau lub internal combustion engine raws li cov ntaub ntawv tau txais los ntawm lub sensors. Nrog nws cov kev pab, koj tuaj yeem kuaj xyuas qhov kev puas tsuaj uas tau tshwm sim hauv ntau lub tshuab tshuab, suav nrog lub tshuab hluav taws xob. Rau kev kuaj mob, koj yuav tsum txuas lub scanner tshwj xeeb, uas, thaum muaj qhov yuam kev, yuav qhia koj cov cai. Feem ntau, qhov yuam kev hauv kev ua haujlwm ntawm lub kaw lus tuaj yeem tshwm sim vim kev tawg ntawm ib qho ntawm cov khoom siv hluav taws xob uas muab cov ntaub ntawv rau lub computer. Lub tshuab luam ntawv hluav taws xob yuav qhia koj txog qhov yuam kev.
Diagnostics ntawm lub ignition system siv ib tug oscilloscope
Feem ntau, thaum kuaj xyuas lub tshuab hluav taws xob ntawm lub tsheb, cov cuab yeej hu ua lub cev muaj zog tester yog siv. Nws lub luag haujlwm tseem ceeb yog saib xyuas qhov hluav taws xob siab waveform hauv qhov hluav taws xob hluav taws xob. Tsis tas li ntawd, siv cov cuab yeej no, koj tuaj yeem saib cov kev ua haujlwm hauv qab no hauv lub sijhawm tiag tiag:
Ib qho ua tiav ntawm lub cev muaj zog tester rau kev kuaj tsheb
- hluav taws xob hluav taws xob;
- lub sij hawm ntawm lub neej ntawm lub txim;
- breakdown voltage ntawm lub txim.
Tag nrho cov ntaub ntawv yog tso tawm nyob rau hauv lub screen nyob rau hauv daim ntawv ntawm ib tug oscillogram ntawm lub computer screen, uas muab ib tug tag nrho cov duab ntawm kev ua tau zoo ntawm tswm ciab thiab lwm yam khoom ntawm lub tsheb lub ignition system. Nyob ntawm lub ignition system, diagnostics yog nqa tawm raws li txawv algorithms.
uas yog, classic (distributor), tus neeg thiab DIS ignition systems raug tshuaj xyuas siv lub oscilloscope nyob rau hauv ntau txoj kev. Koj tuaj yeem pom cov lus qhia ntxaws ntxaws ntawm qhov no hauv ib tsab xov xwm cais ntawm kev kuaj xyuas qhov hluav taws xob nrog oscilloscope.
tshawb pom
breakdowns nyob rau hauv lub ignition system ntawm ib lub tsheb tej zaum yuav tig mus ua teeb meem loj nyob rau hauv lub feem ntau inopportune lub sij hawm. Yog li ntawd, peb pom zoo kom koj ib ntus tshuaj xyuas nws cov ntsiab lus tseem ceeb (tshwj xeeb plugs, high-voltage xov hlau, ignition coils). Qhov kev kuaj no yooj yim, thiab nyob rau hauv lub hwj chim ntawm txawm ib tug inexperienced tsav tsheb. Thiab nyob rau hauv cov kev tshwm sim ntawm complex breakdowns, peb xav kom koj nrhiav kev pab los ntawm ib tug kev pab cuam chaw nres tsheb nyob rau hauv thiaj li yuav ua kom tiav cov kev kuaj mob uas siv lub cev muaj zog tester thiab lwm yam khoom siv kuaj mob.
