Camshaft chinzvimbo sensor, mabasa ayo mukati meinjini yekupisa

Injini dzemazuva ano dzine dhizaini yakaoma uye inodzorwa neelectronic control unit (ECU) inogamuchira ruzivo kubva kuma sensors. Imwe neimwe sensor inotarisisa mamwe ma paramita anoratidza kushanda kweinjini panguva ino, uye inotumira ruzivo kuECU. Muchikamu chino, tichatarisa chimwe chezvinhu zvakakosha zveinjini manejimendi system - iyo camshaft position sensor (DPRS).

Chii chinonzi camshaft chinzvimbo sensor

DPRV zvinoreva camshaft chinzvimbo sensor. Mamwe mazita: Hall sensor, phase sensor kana CMP (chirungu chidimbu). Kubva pazita racho zvakajeka kuti inobatanidzwa mukushanda kwegasi rekugovera gasi. Kunyanya, iyo sisitimu inoverengera yakanakira jekiseni remafuta uye yekubatidza nguva zvichienderana nedata rayo.

Iyi sensor inoshandisa referensi yekugovera voltage - 5V, uye chinhu chayo chekunzwa iHoro sensor. Iyo haitaridzi nguva yejekiseni kana kupisa, asi inongopa ruzivo nezve iyo piston inosvika paTDC muhumburumbira yekutanga. Kubva pane idzi data, nguva yejekiseni uye nguva inoverengerwa.

Mubasa rayo, iyo DPRV inoshanda yakabatana neiyo crankshaft chinzvimbo sensor (DPKV), iyo zvakare ine basa rekushanda kwakaringana kweiyo ignition system. Kana nekuda kwechimwe chikonzero kusashanda kweiyo camshaft sensor inoitika, ipapo ruzivo rwe crankshaft sensor ruchaverengerwa. Chiratidzo kubva kuDPKV chinonyanya kukosha mukushanda kwekupisa uye jekiseni system; pasina iyo, injini haingoshande.

DPRV inoshandiswa mumainjini ese emazuva ano, kusanganisira injini dzinopisa dzemukati dzine nguva yevharuvhu. Zvichienderana nekugadzirwa kweinjini, inoiswa muhumburumbira musoro.

Horo mhedzisiro uye DPRV dhizaini

Sezvambotaurwa, sensor inoshanda pane iyo Horo mhedzisiro. Izvi zvakawanikwa muzana remakore rechi19 nemusayendisiti wezita rimwe chete. Akacherechedza kuti kana yakananga ikozvino inoyerera nepakati pendiro yakaonda uye yakaiswa mumunda wekuita kwemagineti isingagumi, ipapo mutsauko unogona kuitika unogadzirwa kune mamwe magumo ayo. Izvi zvinoreva kuti pasi pekuita kwemagineti induction, mamwe maerekitironi anotsauswa uye anogadzira diki voltage kune mamwe mativi endiro (Hall voltage). Inoshandiswa sechiratidzo.

Iyo DPRV yakarongeka nenzira imwechete, asi mune fomu yakagadziridzwa. Iine magineti asingagumi uye semiconductor iyo mapini mana akabatanidzwa. Chiratidzo chinodyiswa kune iyo yekupinza yedunhu rakabatanidzwa, kwainogadziriswa uye yobva yapihwa kune inobuda madhizaini eiyo sensor, iyo iri pane iyo sensor imba. Muviri pachawo wakagadzirwa nepurasitiki.

Iyo camshaft chinzvimbo sensor inoshanda sei

Iyo dhisiki yekutyaira (impulse vhiri) inoiswa pane camshaft kubva kudivi rakatarisana neDPRV. Zvakare, kune mazino akakosha kana protrusions pane camshaft drive disk. Kana maprotrusions aya achipfuura nepakati peiyo DPRV sensor, inogadzira chiratidzo chedhijitari chechimiro chakakosha, chinoratidza kurova kwazvino mumasilinda.

Izvo zvinodikanwa kuti uzive nezvekushanda kwekamshaft sensor zvakanyatsorongeka pamwe chete neDPKV. Mabhindauko maviri e crankshaft anoenderana neshanduko imwe chete yecamshaft. Ichi ndicho chakavanzika chekufananidza jekiseni uye masystem ekupisa. Mune mamwe mazwi, DPRV neDPKV inoratidza nguva yekumanikidza sitiroko muhumburumbira yekutanga.

Iyo crankshaft drive disc ine mazino makumi mashanu nesere, saka kana ichipfuura munzvimbo ine mazino maviri asipo kuburikidza ne crankshaft sensor, sisitimu inotarisa masaini kubva kuDPRV neDPKV uye inosarudza nguva yejekiseni mucylinder yekutanga. Mushure memeno makumi matatu, jekiseni inoitika, semuenzaniso, muhumburumbira yechitatu, uyezve mune yechina neyechipiri. Aya ndiwo mashandiro anoita synchronization. Ese masaini aya mapurusi uye anoverengwa nejini control unit. Vanogona kungoonekwa pane oscillogram.

Basic sensor malfunctions

Zvinofanira kutaurwa pakarepo kuti kana camshaft sensor inokundikana, injini icharamba ichimhanya uye inotanga, asi nekunonoka.

Kusashanda kweDPRV kunogona kuratidzwa nezviratidzo zvinotevera:

• kuwedzera kushandiswa kwemafuta nekuda kwekusawirirana kwejekiseni system;
• motokari inozununguka uye inorasikirwa nesimba;
• kurasikirwa kunoonekwa kwesimba, mota haigone kukurumidza;
• injini haina kutanga pakarepo, asi nekunonoka kwemasekonzi 2-3 kana matanda;
• iyo ignition system inoshanda nemapasi;
• komputa iri pabhodhi inopa kukanganisa, mwenje weCheck Engine wakabatidzwa.

Zviratidzo izvi zvinogona kuratidza kuti RPP haisi kushanda zvakanaka, asi inogonawo kuratidza mamwe matambudziko. Zvakakosha kuita diagnostics mubasa.

Zvikonzero zvekutadza kweDPRV:

• kuonana uye/kana wiring kukundikana;
• panogona kunge kune chip kana bend pa protrusion ye disk nemeno, nekuda kwekuti iyo sensor inoverenga data isina kururama;
• kukanganisa kune sensor pachayo.

Iyo sensor pachayo haiwanzo kukundikana.

Sensor diagnostic nzira

Kunge chero imwe horo effect sensor, iyo camshaft chinzvimbo sensor haigone kuyedzwa nekuyera voltage pamapini ine multimeter. Mufananidzo wakakwana wekushanda kwayo unogona kuwanikwa chete nekuiongorora neoscilloscope. Iyo waveform inoratidza pulses uye dips. Iwe zvakare unofanirwa kuve neruzivo uye ruzivo kuti uverenge waveform data. Izvi zvinogona kuitwa nenyanzvi inokwanisa pachiteshi chebasa kana nzvimbo yebasa.

Kana kusashanda kwakaonekwa, sensor inotsiviwa neimwe itsva, kugadzirisa hakupiwi.

DPRV inoita basa rakakosha mukupisa uye jekiseni system. Kukundikana kwayo kunotungamirira kumatambudziko mukushanda kwejini. Kana zviratidzo zvikaonekwa, zviri nani kuongororwa nenyanzvi dzine hunyanzvi.