kugunda kulephera kwa sensor

kugunda kulephera kwa sensor kumabweretsa kuti gawo lowongolera la ICE (ECU) limasiya kuzindikira njira yowotchera pa kuyaka kwa mafuta osakaniza mu masilindala. Vuto loterolo likuwoneka chifukwa cha chizindikiro chotuluka chomwe chili chofooka kwambiri kapena, m'malo mwake, champhamvu kwambiri. Zotsatira zake, kuwala kwa "check ICE" pa dashboard kumayatsa, ndipo khalidwe la galimoto limasintha chifukwa cha machitidwe a ICE.

kuti muthane ndi vuto la kugogoda kwa sensor sensor, muyenera kumvetsetsa mfundo ya ntchito yake ndi ntchito zomwe zimagwira.

Momwe sensor yogogoda imagwirira ntchito

M'magalimoto a ICE, imodzi mwamitundu iwiri ya masensa ogogoda imatha kugwiritsidwa ntchito - resonant ndi Broadband. Koma popeza mtundu woyamba ndi wachikale kale ndipo ndi wosowa, tifotokoza momwe ma sensor a Broadband amagwirira ntchito (DD).

Mapangidwe a Broadband DD amachokera ku chinthu cha piezoelectric, chomwe, pochitapo kanthu pamakina (ndiko kuti, panthawi ya kuphulika, komwe, kwenikweni, ndi detonation), imapereka mphamvu yamakono ndi magetsi ena ku unit control unit. Sensayi imasinthidwa kuti izindikire mafunde a phokoso kuchokera pa 6 Hz mpaka 15 kHz. Mapangidwe a sensa amaphatikizansopo chinthu cholemetsa, chomwe chimapangitsa kuti makinawo azigwira ntchito powonjezera mphamvu, ndiko kuti, kumawonjezera matalikidwe a mawu.

Magetsi operekedwa ndi sensa kupita ku ECU kudzera pazikhomo zolumikizira amasinthidwa ndi zamagetsi ndiyeno zimatsimikiziridwa ngati pali kuphulika mu injini yoyaka mkati, ndipo motero, ngati nthawi yoyatsira ikufunika kusinthidwa, zomwe zingathandize kuthetsa. . Ndiko kuti, sensa mu nkhani iyi ndi "maikolofoni" chabe.

Zizindikiro za sensa yosweka

Ndi kulephera kwathunthu kapena pang'ono kwa DD, kuwonongeka kwa sensa yogogoda kumawonetsedwa ndi chimodzi mwazizindikiro:

• ICE kugwedezeka. Ndi sensa yothandiza komanso yowongolera mu injini yoyaka mkati, chodabwitsa ichi sichiyenera kukhala. Ndi khutu, maonekedwe a detonation akhoza kudziwika mwachindunji ndi phokoso lachitsulo lomwe limachokera ku injini yoyaka mkati yomwe ikugwira ntchito (kugogoda zala). Ndipo kugwedezeka kwakukulu ndi kugwedezeka pakugwira ntchito kwa injini yoyaka mkati ndi chinthu choyamba chomwe mungadziwire kuwonongeka kwa sensor yogogoda.
• Kuchepetsa mphamvu kapena "kupusa" kwa injini yoyaka mkati, yomwe imawonetseredwa ndi kuwonongeka kwachangu kapena kuwonjezeka kwakukulu kwa liwiro pa liwiro lotsika. Izi zimachitika pamene, ndi siginecha yolakwika ya DD, kusinthika modzidzimutsa kwa ngodya yoyatsira kumachitika.
• Kuvuta kuyambitsa injini, makamaka "kuzizira", ndiko kuti, kutentha pang'ono pambuyo pa nthawi yayitali yosagwira ntchito (mwachitsanzo, m'mawa). Ngakhale kuti n'zotheka khalidwe la galimoto ndi kutentha yozungulira.
• Kuchuluka kwamafuta. Popeza mbali yoyatsira yasweka, kusakaniza kwamafuta a mpweya sikukwaniritsa magawo abwino. Chifukwa chake, zimachitika pamene injini yoyaka mkati imadya mafuta ambiri kuposa momwe imafunikira.
• Kukonza zolakwika za sensor sensor. Kawirikawiri, zifukwa za maonekedwe awo ndi chizindikiro chochokera ku DD kupita kupyola malire ovomerezeka, kupuma kwa waya wake, kapena kulephera kwathunthu kwa sensa. Zolakwa zidzawonetsedwa ndi kuwala kwa Injini ya Check pa dashboard.

Komabe, ziyenera kukumbukiridwa kuti zizindikiro zoterezi zingasonyeze kuwonongeka kwina kwa injini yoyaka mkati, kuphatikizapo masensa ena. Ndibwino kuti muwerengenso kukumbukira kwa ECU pazolakwa zomwe zingachitike chifukwa cha ntchito yolakwika ya masensa.

kugwetsa kulephera kwa sensor sensor

Kuti muzindikire molondola kuwonongeka kwa DD, ndi bwino kugwiritsa ntchito makina osokera amagetsi a unit control unit. Makamaka ngati nyali yoyang'anira "cheke" idawunikira pa dashboard.

Chipangizo chabwino kwambiri cha ntchitoyi chingakhale Jambulani Chida Pro Black Edition - chipangizo chotsika mtengo chopangidwa ku Korea chokhala ndi magwiridwe antchito abwino kwambiri omwe amagwira ntchito ndi protocol ya OBD2 yotengera data ndipo imagwirizana ndi magalimoto amakono ambiri, komanso mapulogalamu a foni yam'manja ndi kompyuta (yokhala ndi Bluetooth kapena Wi-Fi module).

muyenera kuganizira ngati pali chimodzi mwa zolakwika za 4 kugogoda sensa ndi zolakwika mu DMRV, lambda kapena masensa ozizira otentha, ndiyeno muwone zizindikiro zenizeni za nthawi yotsogolera ndi kapangidwe ka mafuta osakaniza (cholakwika cha DD sensor pops up. ndi kuchepa kwakukulu).

Scanner Scan Tool Pro, chifukwa cha chip 32-bit, osati 8, monga anzawo, zidzakulolani kuti musamangowerenga ndi kukonzanso zolakwika, koma kuyang'anira ntchito ya masensa ndikusintha magawo a injini yoyaka mkati. Komanso chipangizo ichi ndi zothandiza pofufuza ntchito ya gearbox, kufala kapena wothandiza kachitidwe ABS, ESP, etc. pamagalimoto apanyumba, aku Asia, aku Europe komanso ngakhale aku America.

Nthawi zambiri, cholakwika p0325 "Open circuit in the knock sensor circuit" imasonyeza mavuto mu waya. Izi zitha kukhala waya wosweka kapena, nthawi zambiri, zolumikizana ndi okosijeni. M'pofunika kuchita kuteteza zolumikizira pa sensa. Nthawi zina cholakwika p0325 chikuwoneka chifukwa chakuti lamba wanthawi yake amatsitsa mano 1-2.

P0328 Knock Sensor Signal High nthawi zambiri ndi chizindikiro cha vuto ndi mawaya apamwamba kwambiri. ndiye, ngati kutchinjiriza kumadutsa mwa iwo kapena chinthu cha piezoelectric. Momwemonso, cholakwika chomwe chikuwonetsedwa chitha kuchitikanso chifukwa lamba wanthawi yayitali adalumpha mano angapo. Pakuti diagnostics, muyenera fufuzani zizindikiro pa izo ndi chikhalidwe cha washers.

Zolakwa p0327 kapena p0326 nthawi zambiri zimapangidwa mu kukumbukira kwa kompyuta chifukwa cha chizindikiro chotsika kuchokera ku sensa yogogoda. Chifukwa chake chingakhale kukhudzana kosauka kwa izo, kapena kukhudzana ndi makina ofooka a sensa ndi chipika cha silinda. Kuti muchotse cholakwikacho, mutha kuyesa kulumikiza onse omwe atchulidwawo komanso sensa yokhayo ndi WD-40. Ndikofunikiranso kuyang'ana torque yokweza sensa chifukwa chizindikiro ichi ndi chofunikira kwambiri pakugwira ntchito kwake.

Nthawi zambiri, tisaiwale kuti zizindikiro za kuwonongeka kwa kachipangizo kugogoda ndi ofanana kwambiri ndi zizindikiro khalidwe poyatsira mochedwa, chifukwa ECU, pazifukwa chitetezo galimoto, amayesa basi kutulutsa mochedwa, chifukwa izi. amachotsa chiwonongeko cha galimoto (ngati ngodya ndi yofulumira kwambiri, ndiye pambali pa detonation ikuwoneka, osati madontho amphamvu okha, koma pali chiopsezo cha kutentha kwa valve). Kotero, kawirikawiri, tikhoza kunena kuti zizindikiro zazikulu ndizofanana ndi nthawi yolakwika yoyatsira.

Zifukwa za kulephera kwa sensor yogogoda

Pazifukwa zomwe pali zovuta ndi sensor yogogoda, izi zikuphatikiza zosokoneza zotsatirazi:

• Kuphwanya kukhudzana kwamakina pakati pa sensor nyumba ndi chipika cha injini. Monga momwe zimasonyezera, ichi ndi chifukwa chofala kwambiri. Kawirikawiri, sensa yokhayo imakhala ndi mawonekedwe ozungulira omwe ali ndi dzenje lokwera pakati, lomwe limamangiriridwa pampando wake pogwiritsa ntchito bolt kapena stud. Chifukwa chake, ngati torque yomangirira imachepa pakulumikizana kwa ulusi (kukanikizira kwa DD kupita ku ICE kwafowoka), ndiye pambuyo pake sensa simalandira kugwedezeka kwamakina kuchokera ku block ya silinda. Kuti athetse kusweka koteroko, ndikwanira kumangitsa kugwirizana kwa ulusi komwe kutchulidwa, kapena kusintha bolt ndi pini yokonzekera, chifukwa ndi yodalirika kwambiri ndipo imapereka mgwirizano wolimba wamakina.
• Mavuto a waya wa sensor. Pankhaniyi, pakhoza kukhala mavuto osiyanasiyana, mwachitsanzo, kufupikitsa waya kapena chizindikiro pansi, kuwonongeka kwa waya (makamaka pamalo omwe amapindika), kuwonongeka kwa mkati kapena kunja, kusweka kwa waya wonse. kapena ma cores ake payekha (kupereka, chizindikiro), kuteteza kulephera. Ngati vutoli litathetsedwa mwa kubwezeretsa kapena kusintha mawaya ake.
• Kulumikizana koyipa pamalo olumikizirana. Izi nthawi zina zimachitika ngati, mwachitsanzo, latch ya pulasitiki yathyoledwa pamalo pomwe ma sensor amalumikizana. Nthawi zina, chifukwa cha kugwedezeka, kukhudzana kumangosweka, ndipo, motero, chizindikiro chochokera ku sensa kapena mphamvu kwa icho sichimafika kwa omvera. Kukonza, mungayesere m'malo Chip, kukonza kukhudzana, kapena ndi njira makina yesetsani kulumikiza ziyangoyango ziwiri ndi kulankhula.
• Kulephera kwathunthu kwa sensa. Sensa yogogoda palokha ndi chipangizo chosavuta, kotero palibe chapadera chothyola, motsatana, ndipo sichilephera, koma zimachitika. Sensor sangathe kukonzedwa, choncho, pakawonongeka kwathunthu, iyenera kusinthidwa ndi yatsopano.
• Mavuto ndi gawo lowongolera zamagetsi. Mu ECU, monga mu chipangizo china chilichonse chamagetsi, kulephera kwa mapulogalamu kumatha kuchitika, zomwe zimabweretsa malingaliro olakwika a chidziwitso kuchokera ku DD, ndipo, motero, kukhazikitsidwa kwa zisankho zolakwika ndi unit.

Chochititsa chidwi n'chakuti, pamene wokonda galimoto akulankhulana ndi galimoto ndi madandaulo okhudza ntchito ya sensa yogogoda, amisiri ena osakhulupirika nthawi yomweyo amadzipereka kuti alowe m'malo mwake ndi yatsopano. Chifukwa chake, tengani ndalama zambiri kuchokera kwa kasitomala. M'malo mwake, mutha kuyesa kulimbitsa makokedwe pakumangirira kwa sensa ndi / kapena kusintha bawutiyo ndi stud. Nthawi zambiri izi zimathandiza.

Kodi kulephera kwa sensor yogogoda ndi chiyani?

Kodi ndingayendetse ndi sensa yogogoda yolakwika? Funsoli ndi lochititsa chidwi kwa oyendetsa galimoto omwe anakumana ndi vutoli poyamba. Nthawi zambiri, yankho la funsoli likhoza kupangidwa motere - pakapita nthawi, mungagwiritse ntchito galimoto, koma mwamsanga, muyenera kuchita zofufuza zoyenera ndikukonza vutoli.

Zowonadi, molingana ndi mfundo yoyendetsera kompyuta, pakawonongeka kwa sensor yamafuta, zimangochitika zokha kuchedwa poyatsira anaikidwa kuti asawononge kuwonongeka kwa zigawo za gulu la pisitoni pakachitika kuphulika kwenikweni pakuyaka mafuta osakaniza. Zotsatira zake - mafuta akukwera ndi kwambiri kugwa mphamvu zomwe zimawonekera makamaka pamene rpm ikuwonjezeka.

Kodi chimachitika ndi chiyani ngati mulepheretsa sensor yogogoda kwathunthu?

Eni magalimoto ena amayesanso kuletsa sensa yogogoda, chifukwa m'mikhalidwe yabwinobwino yogwirira ntchito ndikuwonjezera mafuta abwino, zitha kuwoneka ngati zosafunikira. Komabe, sichoncho! Chifukwa kuphulika sikungochitika chifukwa cha mafuta oyipa komanso mavuto ndi ma spark plugs, kuponderezana ndi moto wolakwika. Chifukwa chake, ngati muyimitsa sensor yogogoda, zotsatira zake zitha kukhala motere:

• kulephera mwachangu (kuwonongeka) kwa silinda yamutu wa gasket ndi zotsatira zake zonse;
• imathandizira kuvala kwa zinthu za gulu la silinda-pistoni;
• mutu wa silinda wosweka;
• kutentha (kwathunthu kapena pang'ono) kwa pistoni imodzi kapena zingapo;
• kulephera kwa jumpers pakati pa mphete;
• kulumikiza ndodo bend;
• kuyaka mbale za valve.

Izi ndichifukwa choti chodabwitsa ichi chikachitika, gawo lowongolera zamagetsi silidzachitapo kanthu kuti lithetse. Chifukwa chake, palibe chomwe muyenera kuzimitsa ndikuyika jumper kuchokera kukana, chifukwa izi zimadzaza ndi kukonza kwamtengo wapatali.

Momwe mungadziwire ngati sensor yogogoda yasweka

Pamene zizindikiro zoyamba za kulephera kwa DD zikuwonekera, funso lomveka ndi momwe mungayang'anire ndikuwona ngati kugogoda kwa sensa kwathyoledwa. Choyamba, ziyenera kunenedwa kuti kuyang'ana sensa yogogoda ndikotheka popanda kuichotsa pazitsulo za silinda, kotero mutayichotsa pampando. Ndipo poyamba ndi bwino kuchita mayesero angapo pamene sensa ikuluikulu ku chipika. Mwachidule, ndondomekoyi ikuwoneka motere:

• khazikitsani liwiro lopanda ntchito mpaka pafupifupi 2000 rpm;
• ndi chinthu chachitsulo (nyundo yaing'ono, wrench) kumenya kumenya kamodzi kapena kawiri zofooka (!!!) pa thupi la block ya silinda m'dera mwadzina la sensa (mukhoza kugunda mopepuka pa sensa);
• ngati liwiro la injini likutsika pambuyo pake (izi zidzakhala zomveka), zikutanthauza kuti sensa ikugwira ntchito;
• liwiro linakhalabe pamlingo womwewo - muyenera kupanga cheke chowonjezera.

Kuti muwone sensor yogogoda, woyendetsa galimoto amafunikira multimeter yamagetsi yomwe imatha kuyeza kuchuluka kwa kukana kwamagetsi, komanso magetsi a DC. Njira yabwino yowonera ndi oscilloscope. Chithunzi chojambula cha sensor chomwe chimatengedwa nacho chidzawonetsa bwino ngati chikugwira ntchito kapena ayi.

Koma popeza woyeserera yekha ndi wopezeka kwa woyendetsa wamba, ndikwanira kuyang'ana zowerengera zomwe sensor imatulutsa ikagundidwa. Mtundu wotsutsa uli mkati mwa 400 ... 1000 Ohm. Ndikofunikiranso kuchita cheke choyambirira cha kukhulupirika kwa waya wake - ngati pali kupuma, kuwonongeka kwa insulation kapena dera lalifupi. Simungathe kuchita popanda kugwiritsa ntchito multimeter.

Ngati mayesero anasonyeza kuti mafuta kugogoda sensa ikugwira ntchito, ndi kulakwitsa za sensa chizindikiro kutuluka osiyanasiyana, ndiye kungakhale koyenera kuyang'ana chifukwa osati kachipangizo palokha, koma ntchito injini kuyaka mkati kapena gearbox. . Chifukwa chiyani? Phokoso ndi kugwedezeka ndizomwe zimayambitsa chilichonse, zomwe DD amatha kuziwona ngati kuphulika kwamafuta ndikusintha molakwika mbali yoyatsira!