Misa mpweya otaya sensa

DMRV kapena maf sensa - ndichiyani? Dzina lolondola la sensa ndi Mass Airflow sensa, nthawi zambiri timayitcha kuti mita yothamanga. Ntchito yake ndikuyesa kuchuluka kwa mpweya wolowa mu injini pa nthawi imodzi.

Momwe ntchito

Sensa ndi ulusi wa platinamu (ndipo chifukwa chake sizotsika mtengo), momwe magetsi amadutsa, amawawotcha. Ulusi umodzi ndi ulusi wowongolera, mpweya umadutsa pachiwiri, ndikuzizira. Sensa imapanga chizindikiro cha frequency-pulse, yomwe nthawi zambiri imakhala yofanana ndi kuchuluka kwa mpweya womwe umadutsa mu sensa. Wowongolera amalembetsa kusintha komwe kumadutsa mumsewu wachiwiri, wokhazikika ndikuwerengera kuchuluka kwa mpweya womwe umalowa mugalimoto. Malingana ndi mafupipafupi a zizindikiro, wolamulira amaika nthawi ya majekeseni a mafuta mwa kusintha chiŵerengero cha mpweya ndi mafuta mu mafuta osakaniza. Kuwerengera kwa sensa ya misa ya mpweya ndiye gawo lalikulu lomwe wowongolera amayika kugwiritsa ntchito mafuta komanso nthawi yoyatsira. Kugwira ntchito kwa mita yothamanga kumakhudza osati kugwiritsira ntchito mafuta onse, ubwino wa kusakaniza, mphamvu ya injini, komanso, mosadziwika bwino, gwero la injini.

Mass air flow sensor: chipangizo, mawonekedwe

Chimachitika ndi chiyani ngati muyimitsa MAF?

Tiyeni tiyambe ndi mfundo yakuti pamene mita yothamanga yazimitsidwa, injini imalowa mumayendedwe adzidzidzi. Kodi izi zingayambitse chiyani? Kutengera mtundu wagalimoto ndipo, motero, fimuweya - kuyimitsa injini (monga pa Toyota) kuti ionjezere mafuta kapena ... pachabe. Kutengera ndi mauthenga ambiri ochokera kumabwalo agalimoto, oyesera amawonanso kuchuluka kwamphamvu pambuyo pozimitsa komanso kusakhalapo kwa zolephera pakuyendetsa galimoto. Palibe amene adayesa mosamala zakusintha kwamafuta ndi moyo wa injini. Kaya kuli koyenera kuyesa njira zoterezi pagalimoto yanu zili kwa mwiniwake kusankha.

Zizindikiro

Mwachindunji, kusagwira ntchito kwa DMRV kumatha kuweruzidwa ndi zizindikiro zotsatirazi:

• Nyali ya CHEK ENGINE ikuwunikira;
• Galimoto imathamanga pang'onopang'ono (opusa);
• Kusakhazikika kwa injini popanda ntchito;
• Injini sikuyamba "kutentha";
• Kuchuluka mafuta;
• Injini imayimitsidwa pamene mukusuntha magiya.

Dirty DMRV (mawonedwe ambali)

Zizindikiro zomwe tafotokozazi zitha kuyambitsidwa ndi zifukwa zina, choncho ndi bwino kuchita kafukufuku wolondola wa sensa ya misa ya mpweya pamalo operekera chithandizo pogwiritsa ntchito zida zapadera. Ngati palibe nthawi, simukufuna, kapena mukumva chisoni ndi ndalamazo, mukhoza kuyang'ana ntchito ya DMRV nokha ndipamwamba, koma osati 100% yotsimikizika.

Dirty DMRV (mawonedwe apamwamba)

Kuzindikira kwa DMRV

Zovuta za kudzidziwitsa za flowmeter zimayamba chifukwa chakuti ichi ndi chipangizo chosasinthika. Kuwerengera kuchuluka kwa kusintha komwe kwawonetsedwa m'mabuku nthawi zambiri sikumapereka zotsatira. Kuwerengera ndikwabwinobwino, koma sensa ndiyolakwika. Nazi njira zingapo zodziwira thanzi la sensa:

1. Njira yosavuta ndikusinthira DMRV ndi yofanana ndikuwunika zotsatira zake.
2. Yang'anani popanda kusintha. Chotsani flowmeter. Chotsani cholumikizira cha sensor ndikuyambitsa injini. DMVR ikayimitsidwa, wowongolera amagwira ntchito mwadzidzidzi. Kuchuluka kwa mafuta osakaniza kumatsimikiziridwa kokha ndi malo a throttle. Pankhaniyi, injini amasunga liwiro pamwamba 1500 rpm. Ngati galimotoyo idakhala "mwachangu" pagalimoto yoyeserera, ndiye kuti sensor ndiyolakwika
3. Kuyang'ana kowoneka kwa MAF. Chotsani chubu cholowetsa mpweya. Choyamba, fufuzani mosamala za corrugation. Sensa ikhoza kukhala yabwino, ndipo chifukwa cha ntchito yake yosakhazikika ndi ming'alu ya payipi yamalata. Ngati pamwamba palibe, pitirizani kuyendera. Zinthu (ulusi wa platinamu) ndi mkati mwa corrugation ziyenera kukhala zouma, zopanda mafuta ndi dothi. Chomwe chimapangitsa kuti zisagwire ntchito bwino ndikuipitsidwa kwa zinthu za flowmeter..
4. Kuwona MAF ndi multimeter. Njirayi ikugwiritsidwa ntchito ku Bosh DMRV yokhala ndi manambala a catalog 0 280 218 004, 0 280 218 037, 0 280 218 116. Timasintha tester kuti tiyese voteji mwachindunji, ndi malire a 2 Volts.

Chithunzi cha DMRV:

Chithunzi cha DMRV

Malo kuchokera pafupi kwambiri ndi mphepo yamkuntho mu dongosolo 1. kachipangizo kachipangizo kachipangizo 2. DMRV supply voteji linanena bungwe 3. grounding (pansi). 4. linanena bungwe kwa cholandilira chachikulu. Mtundu wa mawaya ukhoza kusiyana, koma makonzedwe a pini amakhala ofanana nthawi zonse. Timayatsa moto popanda kuyambitsa injini. Timagwirizanitsa kafukufuku wofiira wa multimeter kupyolera mu zisindikizo za rabara za cholumikizira ku kukhudzana koyamba (kawirikawiri waya wachikasu), ndi kafukufuku wakuda mpaka wachitatu pansi (kawirikawiri waya wobiriwira). Timayang'ana kuwerengera kwa multimeter. Sensa yatsopano nthawi zambiri imawerenga pakati pa 0.996 ndi 1.01 volts. M'kupita kwa nthawi, kupsinjika maganizo kumawonjezeka. Mtengo wokulirapo umafanana ndi kuvala kwa sensa zambiri. 1.01 ... 1.02 - sensor ikugwira ntchito. 1.02 ... 1.03 - chikhalidwe sichili bwino, koma kugwira ntchito 1.03 ... 1.04 - gwero lili pa malire. 1.04 ... 1.05 - ululu 1.05 ... ndi zina - ndithudi, ndi nthawi yoti musinthe.

Onse pamwamba njira diagnostics kunyumba sapereka 100% chitsimikizo cha kudalirika kwa zotsatira. Kuzindikira kodalirika kungapangidwe pazida zapadera zokha.

Dzitetezeni nokha ndi kukonzanso DMRV

Kusintha kwanthawi yake kwa fyuluta ya mpweya ndikuwunika momwe mphete ndi zisindikizo za pisitoni zimathandizira kukulitsa moyo wa DMRV. Kuvala kwawo kumayambitsa kuchulukirachulukira kwa mpweya wa crankcase ndi mafuta. Filimu yamafuta, yomwe imagwera pazinthu zomveka za sensa, imapha. Pa sensa yomwe ilipobe, zowerengera zoyandama zitha kubwezeretsedwanso ndi pulogalamu ya "MARV corrector." Ndi chithandizo chake, mutha kusintha mwachangu kuwongolera kwa MARV mu firmware. Pulogalamuyi ndiyosavuta kupeza ndikutsitsa popanda zovuta pa intaneti. Kuthandizira kutsitsimutsa sensa yosagwira ntchito, chotsuka cha luftmassensensor reiniger chingathandize. Kwa ichi muyenera:

• Chotsani sensa kuchokera ku injini monga tafotokozera pamwambapa.
• Uza kukonzekera mosamala ndi mowolowa manja pa tcheru chinthu.
• Dikirani mpaka zotsalira zotsalazo zitatha.
• Yamitsani sensa bwino musanayike. Pofuna kupewa, njirayi ikhoza kubwerezedwa musanalowe m'malo mwa fyuluta ya mpweya.

DMRV Toyota 22204-22010

Ngati kuyeretsa sikulephera, sensor yolakwika iyenera kusinthidwa. Mtengo wa sensa yotulutsa mpweya umachokera ku ma ruble 2000, ndipo pamitundu yochokera kunja nthawi zambiri imakhala yokwera kwambiri, mwachitsanzo, mtengo wa sensor ya Toyota 22204-22010 ndi pafupifupi ma ruble 3000. Ngati sensa ndi yokwera mtengo, musathamangire kugula yatsopano. Nthawi zambiri, zinthu zamtundu womwewo zimayikidwa pamitundu yosiyanasiyana yamagalimoto, ndipo mtengo ngati zida zosinthira ndizosiyana. Nkhaniyi nthawi zambiri imawonedwa ndi Bosh DMRV. Kampaniyo imapereka masensa omwewo a VAZ ndi mitundu yambiri yotumizidwa kunja. M'pofunika disassemble kachipangizo, kulemba chizindikiro cha chinthu tcheru kwambiri, n'zotheka kuti akhoza m'malo ndi VAZ.

DBP m'malo mwa DMRV

M'magalimoto otumizidwa kunja, kuyambira zaka za m'ma 2000, m'malo mwa mita yothamanga, makina osindikizira (DBP) adayikidwa. Ubwino wa DBP ndi liwiro lalikulu, kudalirika komanso kudzichepetsa. Koma kukhazikitsa m'malo DMRV ndi nkhani kwambiri kwa iwo amene amakonda ikukonzekera kuposa oyendetsa wamba.