Chifukwa chiyani pa hot high revs

Njira yopanda ntchito (XX) ya injini yamagalimoto yokhala ndi accelerator yomwe imatulutsidwa ndi kufalitsa mosalowerera ndale pamainjini onse, kupatula akale kwambiri, imayendetsedwa ndi zida zosiyana ndipo iyenera kukhala yokhazikika. Makamaka ndi injini yotenthetsera bwino, pamene mikhalidwe yonse ya dosing yolondola ya mafuta osakaniza imapangidwa.

Kuthamanga kwa kuzungulira kwa crankshaft pa makumi awiri kumayikidwa mwachidwi, kulondola kwa kukonzanso kwake kumasonyeza kutumikiridwa kwa gawo lazinthu.

Momwe mungadziwire kuti liwiro lopanda pake linayamba kuyandama

Kusintha kwa cyclic kapena chipwirikiti pa liwiro la kuzungulira kumawonekera bwino ndi momwe singano ya tachometer imayendera kapena khutu. Kusinthasintha kulikonse koonekera sikuvomerezeka. Ma injini akale a carburetor kapena ma dizilo opanda mphamvu zamagetsi amatha kulumpha mwachangu posintha katundu.

Apa, katundu sayenera kuganiziridwa osati kungotenga nawo mbali pakufalitsa. Injini ili ndi mayunitsi omangika, kugwiritsa ntchito mphamvu komwe sikukhazikika. Zitha kukhala:

• katswiri wamagetsi amene amasintha kagwiritsidwe ntchito ka mphamvu kuchokera ku jenereta, potero amakweza lamba wake kuchokera ku crankshaft pulley;
• katundu wosiyanasiyana wofanana kuchokera pampopi yowongolera mphamvu panthawi yake;
• kukanikiza chopondapo cha brake, kupangitsa kuti chowonjezera cha brake chigwire ntchito;
• kuyatsa mpweya kompresa wa dongosolo nyengo;
• kusintha kwa kutentha kwa injini.

M'ma motors amakono pali mayankho kudzera pa crankshaft position sensor. Chigawo chowongolera zamagetsi (ECU) chimazindikira kusiyana pakati pa liwiro lomwe limayikidwa mu pulogalamuyo ndi liwiro lenileni, pambuyo pake kupereka kwa mpweya wowonjezera, mafuta, kapena kusintha kwa nthawi yoyatsira kumathandizira kuti zinthu zizichitika.

Koma ngati pali malfunctions mu dongosolo, ndiye kulamulira osiyanasiyana sikokwanira, kapena Mtsogoleri alibe nthawi yokonza kusintha mofulumira, injini kusintha liwiro, kunjenjemera ndi kunjenjemera.

Nchiyani chimayambitsa ma RPM apamwamba pa injini yotentha?

Mutha kusinthanso zifukwa zomwe zikuchulukira liwiro la ma mota onse. Izi ndizosintha pakuphatikizidwa kwa osakaniza, zovuta pakuyatsa kapena gawo lamakina.

Zolakwika ziyenera kufotokozedwa pagulu lililonse la kayendetsedwe ka ntchito, kupopera kwakanthawi kwa petulo mu carburetor, chowongolera pamagetsi a jakisoni wamagetsi kapena ma injini amafuta a dizilo.

Carburetor ICE

Chodziwika bwino cha injini zoyatsira mkati zotere ndikusowa kwa mayankho pa liwiro. Carburetor imatulutsa kuchuluka kwa kusakaniza kutengera kuthamanga kwa mpweya womwe umadutsamo.

Liwiro ili limadalira kuchuluka kwa kasinthasintha, koma sikoyenera kudikirira zomwe zimachitika pazifukwa zonse. Galimoto imatha kutaya liwiro kuchokera ku katundu uliwonse mwa mawonekedwe a kulephera kapena kugwirizana kwa ogula, ndipo malipiro saperekedwa.

Zotsutsana nazo zimathekanso, pamene kusintha kuli kwakukulu, koma dongosolo la carburetor limatha kuchita mwanjira yokhayo - kuwonjezera kusakaniza kowonjezereka, kusunga kusintha kumeneku. Choncho, pafupifupi chirichonse chimakhudza liwiro la kasinthasintha.

Nthawi zambiri, ntchito ya autonomous XX system imasokonekera chifukwa cha blockages mu carburetor. Kuyesera kusintha kumayambitsa ntchito yosakhazikika komanso kuwonjezeka kwakukulu kwa zinthu zovulaza mu utsi, ndipo popita injini ikhoza kuyima pa nthawi yosayenera. Mwamwayi, injini zama carbureted zatsala pang'ono kutha.

Jekeseni

Powona kuwonjezeka kwa liwiro, ECM ipereka lamulo kuti muchepetse. Njira ya mpweya idzaphimbidwa ndi wowongolera nthawi zonse, koma mphamvu zake ndizochepa.

Zomwe zimachitika nthawi zambiri zimakhala ngati mpweya wochulukirapo ukudutsa njira yowongolera. Dongosolo lidzawonjezera kuchuluka koyenera kwa mafuta, liwiro lidzawonjezeka. Ndizosatheka kukonza cholakwikacho, njira XX yatsekedwa kale.

Chizindikiro cholakwika chidzawoneka, wowongolera adzalowa munjira yadzidzidzi kuti apititse patsogolo liwiro, chifukwa sikuli bwino kuyimitsa injini.

Injini ya dizilo

Ma dizilo amasiyananso, kuchokera ku machitidwe osavuta amafuta okhala ndi mapampu amakina, kupita kuzinthu zamakono, zoyendetsedwa ndimagetsi kuchokera ku masensa ambiri, koma maziko a chilichonse ndikuyenda kwa mpweya komwe kuyezedwa ndi ECU.

Chomwe chimayambitsa kuphwanya kwa valve ndi recirculation valve, yopangidwa kuti ipereke gawo la utsi kuti libwererenso pakumwa. Mikhalidwe yomwe imagwirira ntchito imathandizira kuipitsa ndi kulephera.

Zolakwa zina zimathekanso, pampu yothamanga kwambiri, masensa, owongolera, ma intake, injectors. Kuzindikira kovutirako kumafunika.

Njira zothetsera vutoli

Nthawi zambiri sizovuta kuthetsa kuphwanya, nthawi yochulukirapo imathera pakufufuza kwake chifukwa chazifukwa zosiyanasiyana.

Kuthamanga kwa injini yoyandama kumatulutsa mpweya momwe mungapezere ndi kukonza

Misa mpweya otaya sensa

DMRV ikhoza kupereka mawerengedwe opotoka, kubweretsa zolakwika pamawerengedwe apakompyuta. Wotsirizirayo amatha kuteteza mosavuta chinyengo, koma kawirikawiri mkati mwa malire ang'onoang'ono.

Ndiye iye adzangozimitsa sensa mwachiwonekere yolakwika, ayambe kulamulira malinga ndi kuwerenga kwa ena onse, kuonjezera liwiro la XX ndikuyika code yolakwika.

DMRV yolakwika imafufuzidwa molingana ndi data ya scanner m'njira zosiyanasiyana, chizindikiro chake chiyenera kugwirizana ndi seti wamba. Zomwezo zikhoza kuchitika ndi multimeter, koma osati mu injini zonse. Sensa iyenera kusinthidwa. Nthawi zina ndizotheka kutsuka ndikubwezeretsanso, koma simuyenera kuyembekezera nthawi zonse.

Kuyang'ana sensor ya DMRV pa injini za VAG: multimeter + adapter diagnostics

Sensa ya IAC

M'malo mwake, iyi si sensor, koma actuator. Amakhala ndi valavu ya mpweya yomwe imayendetsedwa ndi stepper motor.

Zovuta zimachitika chifukwa cha kuipitsidwa kwa actuator, msonkhano wa throttle pomwe wowongolera amayikidwa munjira yodutsa, komanso kuvala kwamakina. IAC imasinthidwa kukhala yatsopano, ndipo msonkhano wa throttle uyenera kuchotsedwa ndikutsukidwa kwathunthu.

Zamgululi

Sensa ya throttle position ikhoza kukhala ndi mapangidwe mu mawonekedwe a potentiometer yosavuta ndi msewu wa malasha ndi slider. Njirayi imatha pakapita nthawi ndipo imayamba kutulutsa zopumira ndi zolakwika.

Ndi yotsika mtengo, imadziwika mosavuta ndi scanner ndikusinthidwa mwachangu. Nthawi zina ndizotheka kubwezeretsa ntchito posintha malo kuti chotchinga chotsekedwa chipereke ziro zomveka pakompyuta.

Supottle

Njira yoperekera mpweya yokhala ndi throttle nthawi zambiri imakhala yodetsedwa, pambuyo pake damper sitseka kwathunthu. Izi zikufanana ndi kukanikiza pang'onopang'ono chopondapo cha gasi, zomwe zimapangitsa kuti liwiro liwonjezeke.

Komanso, palibe cholakwika chomwe chimapangidwa, popeza TPS imawonetsanso kutsegula pang'ono. Njira yothetsera vutoli ndikutsuka chitoliro cha throttle ndi oyeretsa. Nthawi zina zomwezo zimachitika chifukwa cha kuwonongeka ndi kung'ambika. Kenako msonkhanowo umasinthidwa.

Kutentha kwa injini

The zikuchokera osakaniza zimadalira kutentha kwa galimoto. Pamene sensa yofananira ikugwira ntchito ndi cholakwika chachikulu, ECU imakonza izi ngati kutentha kosakwanira, ndikuwonjezera liwiro lopanda ntchito.

Poyerekeza kutentha kwenikweni ndi zowerengera za scanner, ndizotheka kuzindikira ndi kukana mafuta a dizilo, pambuyo pake zonse zimasankhidwa ndi m'malo otsika mtengo.

Kudya kangapo

Njira yonse yolowera iyenera kusindikizidwa, chifukwa pali vacuum mmenemo pamene throttle yatsekedwa. Kutulutsa kulikonse mu ma gaskets kapena zinthu za zigawozo kumabweretsa kuyamwa kosawerengeka kwa mpweya, kusokoneza komanso kuwonjezeka kwa liwiro.

Kuzindikira matenda ndikofunikira pogwiritsa ntchito jenereta ya utsi kapena kuyesa kwa kaboni, ndiko kuti, potaya malo okayikitsa ndi zopopera zoyaka.

ECU

Nthawi zambiri, koma zolakwika za ECU zimachitika, kuyambira ukalamba kapena kulowa kwamadzi kulowa mumtundu wake wosindikizidwa. Chigawochi chikhoza kubwezeretsedwanso ndi soldering pa katswiri, kuyeretsa kukhudzana ndi m'malo zinthu.

Koma nthawi zambiri zimangosinthidwa ndi zatsopano kapena zodziwika bwino kuchokera ku disassembly yagalimoto. Zowona, kulephera kwa ECU kumabweretsa mawonetseredwe owopsa kuposa kuchuluka kwa liwiro.

Sibwino kuyendetsa pa liwiro lalikulu. Iyi ndi njira yadzidzidzi, yomwe ingayambitse kuwonongeka kwa injini zatsopano. Koma kufika pamalo okonzerako ndikololedwa panokha.