buga firikwensin gazawar

buga firikwensin gazawar yana haifar da gaskiyar cewa sashin kulawa na ICE (ECU) ya daina gano tsarin fashewa yayin konewar cakuda mai a cikin silinda. Irin wannan matsalar tana fitowa ne sakamakon sigina mai fita mai rauni ko kuma akasin haka, mai ƙarfi. A sakamakon haka, hasken "duba ICE" a kan dashboard yana haskakawa, kuma halin motar yana canzawa saboda yanayin aiki na ICE.

don magance matsalar ƙwanƙwasa rashin aiki na firikwensin, kuna buƙatar fahimtar ka'idar aikinsa da ayyukan da yake yi.

Yadda ƙwanƙwasa firikwensin ke aiki

A cikin motocin ICE, ana iya amfani da ɗayan nau'ikan firikwensin ƙwanƙwasa guda biyu - resonant da broadband. Amma tunda nau'in farko ya riga ya tsufa kuma yana da wuya, za mu bayyana aikin na'urori masu auna firikwensin (DD).

Zane na DD na broadband yana dogara ne akan nau'in piezoelectric, wanda, a ƙarƙashin aikin injiniya akan shi (wato, lokacin fashewa, wanda, a gaskiya, fashewa), yana ba da wani halin yanzu tare da wani nau'i na lantarki zuwa na'ura mai sarrafa lantarki. Ana kunna firikwensin don gane raƙuman sauti a cikin kewayon daga 6 Hz zuwa 15 kHz. Hakanan ƙirar firikwensin ya haɗa da wakili mai ɗaukar nauyi, wanda ke haɓaka tasirin injin akansa ta hanyar haɓaka ƙarfi, wato yana ƙara girman sautin.

Wutar lantarki da firikwensin ke bayarwa ga ECU ta hanyar haɗa fil ɗin ana sarrafa shi ta hanyar lantarki sannan kuma an kammala ko akwai fashewa a cikin injin konewar ciki, kuma a kan haka, ko lokacin kunna wuta yana buƙatar daidaitawa, wanda zai taimaka kawar da shi. . Wato, firikwensin a cikin wannan yanayin shine kawai "makirifo".

Alamun karyewar firikwensin ƙwanƙwasa

Tare da cikakken ko ɓangaren gazawar DD, raguwar firikwensin ƙwanƙwasa yana bayyana ta ɗayan alamun:

• ICE girgiza. Tare da na'urar firikwensin sabis da tsarin sarrafawa a cikin injin konewa na ciki, wannan lamari bai kamata ya kasance ba. Ta kunne, ana iya tantance bayyanar fashewar ta kai tsaye ta hanyar sautin ƙarfe da ke fitowa daga injin konewa na ciki (ƙwanƙwasawa). Kuma girgiza da wuce gona da iri yayin aikin injin konewa na ciki shine abu na farko da zaku iya tantance raunin bugun firikwensin.
• Rage iko ko "wauta" na injin konewa na ciki, wanda ke nunawa ta hanyar lalacewa a cikin hanzari ko karuwa mai yawa a cikin ƙananan gudu. Wannan yana faruwa lokacin da, tare da siginar DD ba daidai ba, ana aiwatar da daidaitawar kusurwar kunnawa.
• Wahalar fara injin, musamman "sanyi", wato, a ƙananan zafin jiki bayan dogon lokaci na rashin aiki (misali, da safe). Ko da yake shi ne quite yiwu wannan hali na mota da kuma a dumi yanayi zazzabi.
• Ƙara yawan man fetur. Tun lokacin da kusurwar kunnawa ya karye, cakuda man fetur na iska bai dace da mafi kyawun sigogi ba. Saboda haka, wani yanayi yana tasowa lokacin da injin konewa na ciki ya cinye mai fiye da yadda yake bukata.
• Gyara kurakuran firikwensin ƙwanƙwasa. Yawancin lokaci, dalilan bayyanar su shine sigina daga DD wanda ya wuce iyakokin da aka halatta, hutu a cikin wayoyi, ko gazawar firikwensin gaba daya. Za a nuna kurakurai ta hasken Injin Duba akan dashboard.

Duk da haka, ya kamata a la'akari da cewa irin waɗannan alamun na iya nuna wasu lalacewar injin konewa na ciki, ciki har da wasu na'urori masu auna firikwensin. Ana ba da shawarar karanta ƙwaƙwalwar ECU don kurakurai waɗanda zasu iya faruwa saboda kuskuren aiki na firikwensin mutum ɗaya.

buga firikwensin kewaye gazawar

Don ƙarin gano lalacewar DD daidai, yana da kyau a yi amfani da na'urar daukar hotan takardu na kuskuren naúrar sarrafa lantarki. Musamman idan fitilar sarrafawa ta "check" ta haskaka akan dashboard.

Mafi kyawun na'urar don wannan aikin zai kasance Scan Tool Pro Black Edition - Na'urar Koriya mai tsada mai tsada tare da babban aiki mai aiki tare da ka'idar canja wurin bayanai ta OBD2 kuma ta dace da yawancin motocin zamani, da kuma shirye-shiryen wayar hannu da kwamfuta (tare da tsarin Bluetooth ko Wi-Fi).

Kuna buƙatar yin la'akari da ko akwai ɗaya daga cikin kurakuran firikwensin ƙwanƙwasa 4 da kurakurai akan DMRV, lambda ko na'urori masu auna zafin jiki, sa'an nan kuma duba alamun ainihin lokacin don kusurwar jagora da abun da ke tattare da man fetur (kuskure don firikwensin DD ya tashi. tare da raguwa mai mahimmanci).

Scanner Scan Tool Pro, Godiya ga guntu 32-bit, kuma ba 8 ba, kamar takwarorinsa, zai ba ku damar ba kawai don karantawa da sake saita kurakurai ba, amma don saka idanu kan ayyukan na'urori masu auna firikwensin da daidaita sigogi na injin konewa na ciki. Hakanan wannan na'urar tana da amfani yayin duba aikin akwatin gear, watsawa ko tsarin taimako ABS, ESP, da sauransu. akan motocin gida, Asiya, Turai da ma Amurkawa.

Sau da yawa kuskure p0325 "Bude kewaye a cikin ƙwanƙwasa firikwensin da'irar" yana nuna matsaloli a cikin wayoyi. Wannan na iya zama wayan da ya karye ko, sau da yawa, lambobi masu oxidized. Wajibi ne don aiwatar da kariya ta kariya na masu haɗawa akan firikwensin. Wani lokaci kuskuren p0325 yana bayyana saboda gaskiyar cewa bel na lokaci yana zamewa 1-2 hakora.

P0328 Knock Sensor Signal High yawanci nuni ne na matsala tare da manyan wayoyi masu ƙarfin lantarki. wato, idan rufin ya karye ta hanyar su ko kuma sinadarin piezoelectric. Hakazalika, kuskuren da aka nuna yana iya faruwa saboda gaskiyar cewa bel ɗin lokaci ya tsallake hakora biyu. Don ganowa, kuna buƙatar bincika alamomin akan sa da yanayin masu wanki.

Kurakurai p0327 ko p0326 yawanci ana haifar dasu a cikin ƙwaƙwalwar kwamfuta saboda ƙaramin sigina daga firikwensin bugun. Dalili na iya zama mara kyau lamba daga gare ta, ko rauni inji lamba na firikwensin tare da Silinda block. Don kawar da kuskuren, kuna iya ƙoƙarin aiwatar da duka lambobin da aka ambata da kuma firikwensin kanta tare da WD-40. Hakanan yana da mahimmanci a duba ƙarfin hawan firikwensin saboda wannan siga yana da mahimmanci ga aikinsa.

Gabaɗaya, ana iya lura da cewa alamun faɗuwar firikwensin ƙwanƙwasa suna kama da alamomin halayen marigayi ƙonewa, saboda ECU, don dalilai na aminci ga motar, yana ƙoƙarin samar da ta atomatik a ƙarshen-wuri, tunda wannan. yana kawar da lalata motar (idan kusurwa ya yi yawa da wuri, to, ban da fashewa ya bayyana, ba kawai ikon sauke ba, amma akwai hadarin bawul mai ƙonewa). Don haka, gabaɗaya, zamu iya yanke shawarar cewa manyan alamomin daidai suke da lokacin kunnawa ba daidai ba.

Abubuwan da ke haifar da gazawar firikwensin ƙwanƙwasa

Dangane da dalilan da ya sa ake samun matsaloli tare da firikwensin bugun, waɗannan sun haɗa da raguwa masu zuwa:

• Cin zarafin injina tsakanin mahalli na firikwensin da toshe injin. Kamar yadda aikin ya nuna, wannan shine dalilin da ya fi kowa. Yawanci, na'urar firikwensin kanta yana da siffar zagaye tare da rami mai hawa a tsakiya, ta inda ake haɗa shi da wurin zama ta amfani da ƙugiya ko tudu. Sabili da haka, idan ƙarfin ƙarfin ƙarfi ya ragu a cikin haɗin da aka haɗa (matsawar DD zuwa ICE ya raunana), sa'an nan kuma firikwensin ba ya karɓar girgizar injin sauti daga shingen Silinda. Don kawar da irin wannan rushewa, ya isa ya ƙarfafa haɗin haɗin da aka ambata, ko maye gurbin ƙwanƙwasa gyare-gyare tare da fil ɗin gyarawa, tun da ya fi dacewa kuma yana ba da haɗin haɗin injiniya.
• Matsalolin wayar salula. A wannan yanayin, za a iya samun matsaloli daban-daban, alal misali, rage kayan aiki ko siginar waya zuwa ƙasa, lalacewar inji (musamman a wuraren da aka lanƙwasa), lalacewa na ciki ko na waje, karyewar waya gaba ɗaya. ko daidaitattun maƙallan sa (samarwa, siginar), gazawar garkuwa. Idan an magance matsalar ta hanyar maidowa ko maye gurbin wayar ta.
• Mummunan lamba a wurin haɗin gwiwa. Wannan yanayin wani lokaci yana faruwa idan, alal misali, latch ɗin filastik ya karye a wurin da aka haɗa lambobin firikwensin. Wani lokaci, sakamakon girgiza, lambar sadarwa takan karye, kuma, saboda haka, siginar firikwensin ko ikon da ke cikinta ba ya isa ga mai adireshin. Don gyarawa, zaku iya ƙoƙarin maye gurbin guntu, gyara lambar sadarwa, ko ta wata hanyar inji gwada haɗa pads biyu tare da lambobi.
• Cikakken gazawar firikwensin. Ƙwaƙwalwar firikwensin kanta na'ura ce mai sauƙi, don haka babu wani abu na musamman don karya, bi da bi, kuma da wuya ya gaza, amma yana faruwa. Ba za a iya gyara firikwensin ba, sabili da haka, a yayin da aka samu cikakkiyar lalacewa, dole ne a maye gurbinsa da wani sabo.
• Matsaloli tare da na'urar sarrafawa ta lantarki. A cikin ECU, kamar a kowace na'urar lantarki, gazawar software na iya faruwa, wanda ke haifar da fahimtar kuskuren bayanai daga DD, kuma, a kan haka, ɗaukar yanke shawara mara kyau ta naúrar.

Abin sha'awa shine, a cikin yanayin lokacin da mai sha'awar mota ya tuntuɓi sabis na mota tare da gunaguni game da aikin firikwensin ƙwanƙwasa, wasu ƙwararrun ƙwararrun ƙwararrun ƙwararrun nan da nan suna ba da shawarar maye gurbinsa da sabon. Saboda haka, ɗauki ƙarin kuɗi daga abokin ciniki. Madadin haka, zaku iya ƙoƙarin ƙara ƙarfin juzu'i akan ɗigon zaren firikwensin da / ko maye gurbin kusoshi tare da ingarma. A yawancin lokuta wannan yana taimakawa.

Menene gazawar firikwensin ƙwanƙwasa?

Zan iya tuƙi da kuskuren firikwensin ƙwanƙwasa? Wannan tambaya tana da sha'awa ga masu ababen hawa waɗanda suka fara fuskantar wannan matsala. A general sharuddan, amsar wannan tambaya za a iya tsara kamar haka - a cikin gajeren lokaci, za ka iya amfani da mota, amma a farkon zarafi, kana bukatar ka gudanar da daidai ganewar asali da kuma gyara matsalar.

Lalle ne, bisa ga ka'idar aiki na kwamfuta, lokacin da lalacewar na'urar bugun bugun mai ta faru, ta atomatik an shigar da jinkirin kunna wuta don ware lalacewa ga sassan rukunin piston a cikin yanayin fashewar gaske yayin konewar cakuda mai. Saboda - Yawan man fetur ya hauhawa kuma mahimmanci fadowa motsin rai wanda ya zama sananne musamman yayin da rpm ya karu.

Me zai faru idan kun kashe firikwensin bugun gaba ɗaya?

Wasu masu motocin ma suna ƙoƙarin kashe firikwensin ƙwanƙwasa, tunda a ƙarƙashin yanayin aiki na yau da kullun da mai da mai mai kyau, yana iya zama kamar ba dole ba ne. Duk da haka, ba haka ba ne! Saboda fashewa ba kawai saboda mummunan man fetur da matsaloli tare da tartsatsin tartsatsi, matsawa da kuskure ba. Don haka, idan kun kashe firikwensin ƙwanƙwasa, sakamakon zai iya zama kamar haka:

• gazawar gaggawa (rushewa) na gaskat ɗin kan silinda tare da duk sakamakon da ya biyo baya;
• saurin lalacewa na abubuwan da ke cikin rukunin Silinda-piston;
• fashe shugaban silinda;
• ƙonawa (cikakken ko sashi) na piston ɗaya ko fiye;
• gazawar masu tsalle tsakanin zobba;
• lankwasa sanda mai haɗawa;
• kona faranti bawul.

Wannan shi ne saboda gaskiyar cewa lokacin da wannan al'amari ya faru, na'urar sarrafa lantarki ba za ta dauki matakan kawar da shi ba. Sabili da haka, a kowane hali kada ku kashe shi kuma ku sanya jumper daga juriya, saboda wannan yana cike da gyare-gyare masu tsada.

Yadda za a tantance idan firikwensin bugun bugun ya karye

Lokacin da alamun farko na gazawar DD suka bayyana, tambaya mai ma'ana ita ce yadda za a bincika da tantance idan firikwensin ƙwanƙwasa ya karye. Da farko, dole ne a faɗi cewa duba firikwensin ƙwanƙwasa yana yiwuwa ba tare da cire shi daga shingen Silinda ba, don haka bayan an raba shi daga wurin zama. Kuma da farko yana da kyau a yi gwaje-gwaje da yawa lokacin da aka lalata firikwensin zuwa toshe. A taƙaice, hanyar tana kama da haka:

• saita saurin aiki zuwa kusan 2000 rpm;
• tare da wani abu na ƙarfe (ƙaramin guduma, ƙugiya) buga ɗaya ko biyu rauni (!!!) a kan jikin silinda block a cikin maras kyau kusa da firikwensin (zaka iya ɗauka da sauƙi a kan firikwensin);
• idan saurin injin ya ragu bayan haka (wannan zai zama abin ji), yana nufin cewa firikwensin yana aiki;
• gudun ya kasance a daidai matakin - kuna buƙatar yin ƙarin bincike.

Don duba firikwensin ƙwanƙwasa, mai mota zai buƙaci na'urar multimeter na lantarki wanda zai iya auna ƙimar juriya na lantarki, da kuma wutar lantarki na DC. Hanya mafi kyau don bincika shine tare da oscilloscope. Tsarin aikin firikwensin da aka ɗauka tare da shi zai nuna a fili ko yana aiki ko a'a.

Amma da yake na'urar gwaji ce kawai ke samuwa ga mai mota na gari, ya isa ya duba juriyar karatun da firikwensin ke bayarwa lokacin dannawa. Matsakaicin juriya yana cikin 400 ... 1000 Ohm. Har ila yau wajibi ne a gudanar da bincike na farko na ingancin wayoyinsa - ko akwai hutu, lalacewar insulator ko gajeriyar kewayawa. Ba za ku iya yin ba tare da taimakon multimeter ba.

Idan gwajin ya nuna cewa firikwensin bugun bugun mai yana aiki, kuma kuskure game da siginar firikwensin da ke fitowa daga kewayon, to yana iya zama darajar neman dalilin ba a cikin firikwensin kanta ba, amma a cikin injin konewa na ciki ko akwatin gear. . Me yasa? Sauti da rawar jiki sune alhakin komai, wanda DD zai iya gane shi azaman fashewar man fetur kuma kuskuren daidaita kusurwar kunnawa!