Camshaft sensor malfunction zviratidzo

Chii chinonzi camshaft sensor?

Kushanda kwechikwata chemagetsi mumotokari dzemazuva ano kunodzorwa nemagetsi. Iyo ECU (electronic control unit) inogadzira mapurusi ekudzora anoenderana nekuongororwa kwemasaini kubva kune akawanda masensor. Masensa akaiswa munzvimbo dzakasiyana anoita kuti ECU iongorore mamiriro einjini chero nguva uye nekukurumidza kugadzirisa mamwe ma paramita.

Pakati pemasensa aya pane camshaft position sensor (DPRS). Chiratidzo chayo chinokutendera kuti uenzanise kushanda kweiyo system yekujoinha musanganiswa unopisa mumagetsi ejini.

Muhuwandu hwakawanda hweinjini dzejekiseni, yakagoverwa sequential (phased) jekiseni yemusanganiswa inoshandiswa. Panguva imwecheteyo, ECU inovhura muromo wega wega, ichive nechokwadi chekuti musanganiswa wemafuta emhepo unopinda mumasilinda nguva pfupi isati yasvika. Phasing, ndiko kuti, kutevedzana kwakaringana uye nguva yakakodzera yekuvhura ma nozzles, inongopa iyo DPRV, ndosaka ichiwanzo kunzi phase sensor.

Iyo yakajairika mashandiro ejekiseni system inobvumidza iwe kuti uwane yakakwana yekupisa yemusanganiswa unopisa, kuwedzera injini simba uye kudzivirira zvisina basa kushandiswa kwemafuta.

Mudziyo uye mhando camshaft nzvimbo sensors

Mumotokari, unogona kuwana matatu marudzi echikamu sensors:

• zvichibva pakuita kweHoro;
• induction;
• optical.

Nyanzvi yefizikisi yekuAmerica Edwin Hall yakawana muna 1879 kuti kana conductor akabatana kune yakananga ikozvino sosi akaiswa mune remagineti, ipapo mutsauko unogona kuitika unomuka mune ino conductor.

Iyo DPRV, iyo inoshandisa chiitiko ichi, inowanzonzi Hall sensor. Muviri wechigadzirwa chacho une magineti asingagumi, magnetic circuit uye microcircuit ine chinhu chinonzwisisika. Mhepo yemagetsi inopihwa kune mudziyo (kazhinji 12 V kubva kubhatiri kana 5 V kubva kune yakagadzikana stabilizer). Chiratidzo chinotorwa kubva pakubuda kweiyo operation amplifier iri mu microcircuit, iyo inopihwa kune komputa.

Dhizaini yeImba sensor inogona slotted

uye kupera

Muchiitiko chekutanga, mazino ecamshaft reference disk anopfuura nepakati sensor slot, mune yechipiri kesi, pamberi pechiso chekupedzisira.

Chero bedzi mitsetse yesimba remagineti isingapindirane nesimbi yemeno, pane imwe voltage pane inonzwisa tsitsi, uye hapana chiratidzo pakubuda kweDPRV. Asi panguva iyo iyo bhenji inoyambuka mitsara yemagineti, iyo voltage pachinhu chakashata inonyangarika, uye pakubuda kwechigadzirwa chiratidzo chinowedzera kupotsa kukosha kweiyo voltage yemagetsi.

Nezvishandiso zvakakanyiwa, dhisiki yekuisa inowanzoshandiswa, iyo ine gap remhepo. Kana gaka iri richipfuura nepakati pesimba remagineti ye sensor, kudzora pulse kunogadzirwa.

Pamwe chete nechigadzirwa chekupedzisira, sekutonga, dhisiki rezino rinoshandiswa.

Iyo referensi disk uye phase sensor inoiswa nenzira yekuti iyo pulse yekudzora inotumirwa kuECU panguva iyo piston ye 1st cylinder inopfuura nepakati pepamusoro akafa centre (TDC), ndiko kuti, pakutanga kwetsva. unit operation cycle. Mune injini dzedhiziri, kuumbwa kwemapurusi kunowanzoitika kune imwe neimwe silinda zvakasiyana.

Ndiyo sensor yeHoro iyo inowanzo shandiswa seDPRV. Nekudaro, iwe unogona kazhinji kuwana iyo induction-mhando sensor, imomo mune zvakare zvachose magineti, uye inductor inokuvadzwa pamusoro pesimba remagineti. Iyo yemagineti inoshanduka panguva yekupfuura kwenzvimbo dzekutarisisa inogadzira mafambiro emagetsi mucoil.

Mumidziyo yemaziso, optocoupler inoshandiswa, uye kudzora pulses inoumbwa kana iyo yekuona yekubatanidza pakati pe LED neiyo photodiode inokanganiswa kana mareferensi mapoinzi apfuura. Optical DPRVs haisati yawana yakafara application muindasitiri yemotokari, kunyangwe ichigona kuwanikwa mune mamwe mamodheru.

Ndezvipi zviratidzo zvinoratidza kusashanda kweDPRV

Iyo chikamu sensor inopa iyo yakakwana modhi yekugovera iyo mweya-mafuta musanganiswa kumasilinda pamwe chete ne crankshaft chinzvimbo sensor (DPKV). Kana iyo phase sensor ikamira kushanda, iyo control unit inoisa iyo simba unit mune yekukurumidzira modhi, kana jekiseni richiitwa mumaviri-parallel zvichibva pane DPKV chiratidzo. Muchiitiko ichi, mabhomba maviri anozaruka panguva imwe chete, imwe pamutambo wekutora, imwe pamutambo wekupedza. Neiyi nzira yekushanda kweyuniti, kushandiswa kwemafuta kunowedzera zvakanyanya. Nokudaro, kunyanya kushandiswa kwemafuta ndeimwe yezviratidzo zvikuru zve camshaft sensor malfunction.

Pamusoro pekuwedzera kweiyo injini, zvimwe zviratidzo zvinogona kuratidza matambudziko neDPRV:

• kusagadzikana, kupindirana, kushanda kwemotokari;
• kuoma kutanga injini, pasinei nechiyero chekudziya kwayo;
• kuwedzera kupisa kwemota, sezvinoratidzwa nekuwedzera kwekushisa kweinotonhorera kana ichienzaniswa nekushanda kwakajairika;
• iyo CHECK ENGINE chiratidzo chinovhenekera pane dashboard, uye iyo-bhodhi komputa inoburitsa inoenderana kodhi kodhi.

Nei DPRV ichitadza uye kuti ungaiongorora sei

Iyo camshaft chinzvimbo sensor inogona kusashanda nekuda kwezvikonzero zvakati.

1. Chekutanga, ongorora mudziyo uye ita shuwa kuti hapana kukuvara kwemichina.
2. Kuverengera kwakashata kweDPRV kunogona kukonzerwa neyakakura yakawandisa pakati pekupedzisira kumeso kwe sensor uye dhisiki yekuisa. Naizvozvo, tarisa kana iyo sensor yakagara yakasimba pachigaro chayo uye haina kurembera nekuda kweiyo isina kusimba yakasungirirwa bhaudhi.
3. Wakambobvisa iyo terminal kubva kune iyo yakaipa yebhatiri, bvisa iyo sensor yekubatanidza uye ona kana paine tsvina kana mvura mairi, kana vanobatika vakaiswa oxidized. Tarisa kuvimbika kwewaya. Dzimwe nguva dzinoora painosungirirwa kune mapini ekubatanidza, saka vakwevera zvishoma kuti vatarise.
   
   Mushure mekubatanidza bhatiri uye kubatidza kupisa, ita shuwa kuti pane voltage pane chip pakati peakanyanya kubatwa. Kuvapo kwesimba rekushandisa kunofanirwa kune iyo Hall sensor (ine matatu-pini chip), asi kana iyo DPRV iri yemhando yekupinza (mbiri-pini chip), saka haidi simba.
4. Mukati memudziyo wacho pachayo, dunhu diki kana rakavhurika redunhu rinogoneka; microcircuit inogona kupisa muImba sensor. Izvi zvinoitika nekuda kwekupisa kana kusagadzikana kwemagetsi.
5. Iyo phase sensor inogonawo kusashanda nekuda kwekukuvadza kune master (reference) disk.

Kuti utarise kushanda kweDPRV, ibvise kubva pachigaro chayo. Simba rinofanirwa kupihwa kune iyo Horo sensor (iyo chip inoiswa, bhatiri rakabatana, kupisa kuri kuita). Iwe unozoda multimeter muDC voltage kuyerwa modhi painogumira inosvika makumi matatu volts. Zvichiri nani, shandisa oscilloscope.

Isai maprobe emudziyo wekuyeresa nemazano akapinza (tsono) muchibatanidza nekuabatanidza nepini 1 (common wire) nepini 2 (signal wire). Iyo mita inofanirwa kuona magetsi ekupa. Uya nechinhu chesimbi, semuenzaniso, kusvika kumagumo kana slot yemudziyo. Voltage inofanira kudonha kusvika pazero.

Nenzira imwecheteyo, iwe unogona kutarisa induction sensor, chete magetsi anochinja mukati mayo achave akasiyana. Iyo induction-mhando DPRV haidi simba, saka inogona kubviswa zvachose kuongororwa.

Kana iyo sensor isingaite nenzira ipi neipi kusvika kune chinhu chesimbi, saka chakashata uye chinofanira kuchinjwa. Haikodzeri kugadzirisa.

Mune akasiyana mota mamodheru, maDPRV emhando dzakasiyana uye dhizaini anogona kushandiswa, mukuwedzera, anogona kuve akagadzirwa akasiyana akasiyana voltages. Kuti urege kukanganisa, tenga sensor nyowani ine mamakisi akafanana senge pachigadzirwa chiri kutsiviwa.

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