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Camshaft position sensor mudziyo unonzwa, unonziwo synchronous signal sensor, iri cylinder rusaruro yekuisa chinzvimbo, yekuisa camshaft chinzvimbo chiratidzo kuECU, ndiyo inobatidza inodzora chiratidzo.

1, shanda uye nyora Camshaft Position Sensor (CPS), basa rayo ndere kuunganidza iyo Camshaft inofambisa Angle chiratidzo, uye inopinza yemagetsi control unit (ECU), kuitira kuona nguva yekudzima uye nguva yejekiseni yemafuta.Camshaft Position Sensor (CPS) inozivikanwawo seCylinder Identification Sensor (CIS), kuitira kusiyanisa kubva kune crankshaft Position Sensor (CPS), Camshaft chinzvimbo sensors inowanzomiririrwa neCIS.Basa reiyo camshaft position sensor ndeyekuunganidza chinzvimbo chechiratidzo chegasi rekugovera camshaft uye kuipinza kuECU, kuitira kuti ECU ione iyo yekumanikidza yepamusoro yakafa pakati pe cylinder 1, kuitira kuti iite sequential mafuta jekiseni kutonga, kudzima nguva yekudzora uye kudzikisira kudzora.Uye zvakare, iyo camshaft chinzvimbo chiratidzo chinoshandiswawo kuona yekutanga kubatidza nguva panguva yekutanga injini.Nekuda kwekuti camshaft position sensor inokwanisa kuziva kuti cylinder piston ndeipi yave kuda kusvika kuTDC, inodaidzwa kunzi cylinder recognition sensor.photoelectricStructural features ofPhotoelectric crankshaft uye camshaft position sensor inogadzirwa nekambani yeNissan inovandudzwa kubva kune distributor, kunyanya nesignal disk (signal rotor. ), chiratidzo chejenareta, midziyo yekugovera, sensor housing uye wire harness plug.Chiratidzo chedhisiki ndiyo chiratidzo che rotor ye sensor, iyo inomanikidzwa pa sensor shaft.Munzvimbo iri pedyo nekumucheto kwendiro yechiratidzo kuita yunifomu yenguva yeradian mukati nekunze madenderedzwa maviri emakomba emwenje.Pakati pavo, mhete yekunze inogadzirwa ne 360 ​​maburi akajeka (magapu), uye nguva yenguva radian ndeye 1. (Transparent hole yakaverengerwa 0.5. , shading hole yakaverengerwa 0.5.) , inoshandiswa kugadzira crankshaft kutenderera uye chiratidzo chekukurumidza;Kune 6 maburi akajeka (rectangular L) mumhete yemukati, ine nguva ye 60 radians., inoshandiswa kugadzira TDC chiratidzo chesilinda imwe neimwe, pakati payo pane rectangle ine yakafara mupendero zvishoma kureba kuti igadzire TDC chiratidzo che cylinder 1. Iyo chiratidzo chejenareta inogadziriswa pane sensor housing, iyo inoumbwa neNe chiratidzo (kumhanya uye Angle chiratidzo) jenareta, G chiratidzo (yepamusoro akafa pakati chiratidzo) jenareta uye chiratidzo chekugadzirisa dunhu.Ne signal uye G signal jenareta inoumbwa nechiedza emitting diode (LED) uye photosensitive transistor (kana photosensitive diode), maviri LED akatarisana zvakananga maviri photosensitive transistors zvichiteerana.Kushanda musimboti weDisiki rechiratidzo rakaiswa pakati pechiedza-emitting diode. (LED) uye photosensitive transistor (kana photodiode).Kana chiedza transmittance gomba pachiratidzo dhisiki inotenderera pakati LED uye photosensitive transistor, chiedza chinobudiswa ne LED achavhenekera photosensitive transistor, panguva ino photosensitive transistor iri pa, muunganidzi wayo goho yakaderera pamwero (0.1 ~ O. 3V);Kana iyo shading chikamu chechiratidzo dhisiki ichitenderera pakati pe LED neiyo photosensitive transistor, mwenje unoburitswa neiyo LED haugone kuvhenekera iyo photosensitive transistor, panguva ino iyo photosensitive transistor yakagurwa, muunganidzi wayo anobuda padanho repamusoro (4.8 ~ 5.2V). Kana iyo chiratidzo dhisiki ichiramba ichitenderera, gomba rekufambisira uye chikamu chemumvuri chinoshandura iyo LED kuti iite transmittance kana shading, uye iyo photosensitive transistor muunganidzi anozoburitsa yakakwira uye yakaderera mazinga.Kana iyo sensor axis ine crankshaft uye camshaft ichitenderera ne, chiratidzo chemwenje gomba pandiro uye shading chikamu pakati pe LED uye photosensitive transistor inotendeuka, LED mwenje chiratidzo cheplate ye pervious kuchiedza uye shading mhedzisiro inoshandura irradiation kune iyo chiratidzo generator ye photosensitive. transistor, chiratidzo che sensor chinogadzirwa uye nzvimbo ye crankshaft uye camshaft inoenderana nechiratidzo chepulse.Sezvo crankshaft inotenderera kaviri, sensor shaft inotenderera chiratidzo kamwe chete, saka G signal sensor ichaita pulses matanhatu.Ne chiratidzo sensor inoburitsa 360 pulse masaini.Nekuti nguva yeradian yegomba rekufambisira mwenje yeG chiratidzo 60. Uye 120 pakutenderera kwe crankshaft.Inoburitsa chiratidzo chekukurudzira, saka chiratidzo cheG chinowanzonzi 120. Chiratidzo.Dhizaini yekuisa vimbiso 120. Chiratidzo 70 pamberi peTDC.(BTDC70. , uye chiratidzo chinogadzirwa negomba rakajeka rine kureba zvishoma rectangular upamhi hunoenderana ne70 pamberi pepamusoro akafa pakati peinjini cylinder 1. Kuti ECU inogona kudzora jekiseni mberi Angle uye ignition mberi Angle. Nokuti Ne chiratidzo transmittance gomba. interval radian ndeye 1. (Transparent hole yakaverengerwa 0.5., shading gole yakaverengerwa 0.5.) , saka mune imwe neimwe pulse cycle, iyo yakakwirira uye yakaderera account account ye 1. Crankshaft rotation, 360 zviratidzo zvinoratidza crankshaft kutenderera 720. Imwe neimwe kutenderera kwe crankshaft i 120. , G signal sensor inogadzira chiratidzo chimwe, Ne signal sensor inogadzira zviratidzo makumi matanhatu. Magnetic induction typeMagnetic induction position sensor inogona kupatsanurwa kuita Hall type uye magnetoelectric type.Iyo yekutanga inoshandisa hall effect kugadzira chinzvimbo chechiratidzo chine amplitude yakatarwa. , sezvinoratidzwa mumufananidzo 1. Iyo yekupedzisira inoshandisa musimboti wemagnetic induction kuti ibudise zviratidzo zvenzvimbo iyo amplitude inosiyana nekuwanda kwayo.Iyi inotevera sumo yakadzama yemusimboti wekushanda we sensor:Nzira yekushanda yeNzira iyo mutsara wesimba remagineti unopfuura ndiwo mukaha wemhepo pakati pechigarire magineti N pole uye rotor, rotor salient zino, iro mhepo gaka pakati pe rotor salient zino uye iyo stator magineti musoro, iyo magineti musoro, iyo magineti inotungamira ndiro uye inogara magineti S pole.Kana iyo rotor yechiratidzo ichitenderera, iyo gap yemhepo mune remagineti inochinja nguva nenguva, uye kupikisa kwemagineti yedunhu remagineti uye iyo magineti inoyerera kuburikidza nechiratidzo coil musoro ichachinja nguva nenguva.Zvinoenderana nemusimboti we electromagnetic induction, kuchinjisa simba remagetsi rinozoiswa mukunzwa coil. Kana chiratidzo cherotor ichitenderera newachi, mukaha wemhepo pakati pemazino e rotor convex uye musoro wemagineti unoderera, kusada kwemagineti kunoderera, iyo magineti inoyerera φ. kunowedzera, kushanduka kwekuchinja kunowedzera (dφ/dt> 0), uye induced electromotive force E yakanaka (E> 0).Kana mazino econvex erotor ari pedyo nekumucheto kwemusoro wemagineti, iyo magineti inoyerera φ inowedzera zvakanyanya, iyo inoyerera yekuchinja ndiyo yakakura [D φ/dt=(dφ/dt) Max], uye induced electromotive force E ndiyo chepamusoro-soro (E=Emax).Mushure mokunge rotor inotenderera yakapoteredza nzvimbo yeB, kunyange zvazvo magnetic flux φ ichiri kuwedzera, asi chiyero chekuchinja kwemagineti chinoderera, saka iyo induced electromotive simba E inoderera. uye mutsara wepakati wemusoro wemagineti, kunyangwe iwo gap remhepo riri pakati perotor convex zino uye musoro wemagineti ndiro diki, kushomeka kwemagineti yedunhu remagineti ndiyo idiki, uye iyo magineti flux φ ndiyo yakakura, asi nekuti iyo magineti. flux haigone kuramba ichiwedzera, chiyero chekuchinja kwemagnetic flux i zero, saka iyo induced electromotive force E i zero. Kana rotor ikaramba ichitenderera ichitevedza nzira yewachi uye zino reconvex rinosiya musoro wemagineti, mukaha wemhepo pakati pe convex zino uye musoro wemagineti unowedzera, kusada kwemagineti kunowedzera, uye magineti flux inoderera (dφ/dt<0), saka iyo induced electrodynamic force E haina kunaka.Kana zino reconvex richitendeukira kumucheto wekusiya musoro wemagineti, iyo magineti inoyerera φ inoderera zvakanyanya, iyo inoyerera yekuchinja inosvika kune yakaipa yepamusoro [D φ/df=- (dφ/dt) Max], uye induced electromotive force E. inosvikawo kune iyo yakaipa yepamusoro (E = -emax) .Saka zvinogona kuonekwa kuti nguva imwe neimwe iyo rotor yechiratidzo inoshandura zino re convex, iyo sensor coil ichabudisa periodic alternating electromotive force, kureva kuti, simba re electromotive rinoonekwa rakakura uye a. kukosha kwehushoma, iyo sensor coil inoburitsa inoenderana alternating voltage chiratidzo.Mukana wakatanhamara weiyo magineti induction sensor ndeyekuti haidi ekunze magetsi, magineti echigarire anoita basa rekushandura simba remagetsi kuita simba remagetsi, uye simba rayo remagineti harirasike.Kana injini yekumhanyisa ichichinja, kumhanya kwekutenderera kwemazino e convex e rotor inoshanduka, uye mwero wekushanduka kweiyo core unochinjawo.Iyo yakakwira yekumhanya, iyo yakakura shanduko yekuchinja, inowedzera induction electromotive simba mu sensor coil.Sezvo mukaha wemhepo pakati pemazino e rotor convex uye musoro wemagineti unokanganisa zvakananga kupokana kwemagineti uye kubuda kwemagetsi iyo sensor coil, mukaha wemhepo pakati pemazino e rotor convex uye musoro wemagineti haugone kuchinjwa pakuda mukushandiswa.Kana iyo gap yemhepo ichichinja, inofanira kugadziriswa maererano nezvinodiwa.Mhepo gap rinowanzo kugadzirwa mukati meiyo 0.2 ~ 0.4mm.2) Jetta, Santana mota magineti induction crankshaft position sensor1) Mamiriro ezvinhu e crankshaft position sensor: Iyo magnetic induction crankshaft position sensor yeJetta AT, GTX uye Santana 2000GSi yakaiswa. pa cylinder block padhuze ne clutch mu crankcase, iyo inonyanya kuumbwa nechiratidzo jenareta uye chiratidzo rotor.Chiratidzo chejenareta chinosungirirwa kune injini block uye ine magineti echigarire, sensing coils, uye wiring harness plugs.Iyo inonzwa coil inonziwo chiratidzo coil, uye musoro wemagineti wakasungirirwa kune isingaperi magineti.Iyo magineti musoro yakatarisana zvakananga nezino disk mhando yechiratidzo rotor yakaiswa pane crankshaft, uye iyo magineti musoro yakabatana neiyo magineti joko (magnetic guide plate) kugadzira magineti inotungamira loop.Iyo chiratidzo cherotor ndeye toothed disc mhando, ine 58 mazino akakombama, mazino madiki makumi mashanu nemanomwe uye zino guru rimwe chete rakaenzana padenderedzwa raro.Zino hombe ririkushaikwa inoburitsa referensi chiratidzo, inoenderana neinjini cylinder 1 kana cylinder 4 compression TDC pamberi peimwe Angle.Mavara emazino makuru akaenzana neaya emazino maviri akakombama uye mazino madiki matatu.Nekuti chiratidzo che rotor chinotenderera ne crankshaft, uye crankshaft inotenderera kamwe (360)., iyo rotor yechiratidzo inotenderera kamwe chete (360)., saka crankshaft rotation Engle inogarwa nemazino ane convex uye kuremara kwezino padenderedzwa rechiratidzo rotor i360. , crankshaft rotation Engle yegumwe nerimwe zino re convex uye zino diki ndeye 3. (58 x 3. 57 x + 3. = 345. = 345 ), Crankshaft Angle inoverengerwa nekuremara kwezino hombe ndeye 15. (2 x 3. + 3 x3. = 15)..2) iyo crankshaft chinzvimbo sensor yekushanda mamiriro: kana crankshaft chinzvimbo sensor ine crankshaft ichitenderera, musimboti wekushanda wemagnetic induction sensor, chiratidzo cherotor imwe neimwe yakashandura zino re convex, inonzwa coil inoburitsa periodic alternating emf (electromotive simba. muhupamhi uye hushoma), coil inoburitsa inochinjanisa voltage chiratidzo zvinoenderana.Nekuti iyo rotor yechiratidzo inopihwa zino hombe kuti ibudise chiratidzo chechiratidzo, saka kana zino hombe rikatenderedza musoro wemagineti, chiratidzo chemagetsi chinotora nguva yakareba, ndiko kuti, chiratidzo chekubuda chiratidzo chakafara chekupuruzira, chinowirirana ne imwe Angle pamberi pehumburumbira 1 kana silinda 4 compression TDC.Kana iyo yemagetsi control unit (ECU) inogamuchira yakakura pulse chiratidzo, inogona kuziva kuti iyo yepamusoro TDC chinzvimbo checylinder 1 kana 4 iri kuuya.Kana iri kuuya kweTDC chinzvimbo checylinder 1 kana 4, inoda kutarisisa zvinoenderana nechiratidzo chekuisa kubva kune camshaft chinzvimbo sensor.Sezvo chiratidzo cherota chine mazino makumi mashanu nesere econvex, sensor coil ichagadzira 58 alternating voltage masigns pakuchinja kwega kwega kwechiratidzo rotor (imwe revolution yeinjini crankshaft). Nguva imwe neimwe iyo rotor inotenderera ichitevedza injini crankshaft, sensor coil inopa 58 pulses mumagetsi ekudzora unit (ECU).Saka, pamasaini makumi mashanu nemasere anogamuchirwa ne crankshaft position sensor, ECU inoziva kuti injini crankshaft yakatenderera kamwe chete.Kana ECU ikagamuchira 116000 zviratidzo kubva ku crankshaft position sensor mukati me1min, ECU inogona kuverenga kuti crankshaft speed n is 2000 (n = 116000/58 = 2000) r / mvura;Kana ECU ikagamuchira 290,000 zviratidzo paminiti kubva ku crankshaft position sensor, ECU inoverenga crank speed ye5000 (n= 29000/58 =5000)r/min.Nenzira iyi, iyo ECU inokwanisa kuverenga kumhanya kwe crankshaft kutenderera zvichienderana nenhamba ye pulse masaini anogamuchirwa paminiti kubva ku crankshaft position sensor.Injini yekumhanyisa chiratidzo uye chiratidzo chemutoro ndiyo inonyanya kukosha uye yakakosha kudzora masaini emagetsi control system, ECU inogona kuverenga matatu ekutanga ekudzora paramita zvichienderana neaya masaini maviri: basic jekiseni mberi Angle (nguva), basic ignition advance Angle (nguva) uye ignition conduction. Angle (ignition coil primary current on time).Jetta AT neGTx, Santana 2000GSi mota yemagineti induction type crankshaft position sensor signal rotor inogadzirwa nechiratidzo sechiratidzo chechiratidzo, ECU kutonga nguva yejekiseni yemafuta uye nguva yekudzima kunoenderana nechiratidzo chakagadzirwa. nechiratidzo.Apo ECu inogamuchira chiratidzo chinogadzirwa nehombe yezino, inodzora nguva yekupisa, nguva yejekiseni yemafuta uye nguva yekutanga yekuchinja yemoto wemoto (kureva kuti conduction Angle) maererano nechiratidzo chezino duku.3) Toyota motokari. TCCS magineti induction crankshaft uye camshaft chinzvimbo sensorToyota Computer Kudzora System (1FCCS) inoshandisa magineti induction crankshaft uye camshaft chinzvimbo sensor yakagadziridzwa kubva kune inogovera, inosanganisira yekumusoro uye yepasi zvikamu.Chikamu chepamusoro chakakamurwa kuva chekuona crankshaft chinzvimbo chechiratidzo chechiratidzo (kureva cylinder identification uye TDC chiratidzo, inozivikanwa seG chiratidzo) jenareta;Chikamu chezasi chakakamurwa kuva crankshaft kasi uye chiratidzo chekona (inonzi Ne chiratidzo) jenareta.1) Mamiriro ezvinhu eNe signal generator: Ne signal generator yakaiswa pasi peG signal generator, inonyanya kuumbwa neNo. 2 chiratidzo rotor, Ne sensor coil uye musoro wemagineti.Rotor yechiratidzo inogadziriswa pane shaft ye sensor, iyo sensor shaft inofambiswa nekamshaft yekugovera gasi, iyo yekumusoro yekupedzisira shaft ine musoro wemoto, rotor ine 24 convex mazino.Iyo inonzwa coil uye musoro wemagineti yakagadziriswa mune sensor imba, uye iyo magineti musoro inogadziriswa mune inonzwa coil.2) kumhanya uye Angle chiratidzo chechizvarwa musimboti uye kudzora maitiro: kana injini crankshaft, valve camshaft sensor masaini, wobva watyaira rotor. kutenderera, rotor inobuda mazino uye mukaha wemhepo pakati pemagineti musoro unochinja zvichichinja, kunzwa coil mugineti flux inochinja neimwe nzira, ipapo iyo inoshanda yemagnetic induction sensor inoratidza kuti mucoil inonzwa inogona kuburitsa alternating inductive electromotive simba.Nekuda kwekuti chiratidzo cherotor chine mazino makumi maviri nemana, iyo sensor coil inoburitsa makumi maviri nemana anochinjana masaini kana rotor ichitenderera kamwe chete.Imwe neimwe shanduko ye sensor shaft (360).Izvi zvakaenzana nekuchinja kuviri kweinjini crankshaft (720)., saka chiratidzo chekuchinjana (kureva nguva yechiratidzo) yakaenzana ne crank rotation ye 30. (720. Present 24 = 30)., yakaenzana nekutenderera kwemusoro wemoto 15. (30. Present 2 = 15)..Kana ECU inogamuchira zviratidzo zve24 kubva kuNe signal jenareta, zvinogona kuzivikanwa kuti crankshaft inotenderera kaviri uye musoro wekupisa unotenderera kamwe chete.ECU yemukati chirongwa inogona kuverenga uye kuona injini crankshaft kumhanya uye kupisa musoro kumhanya zvinoenderana nenguva yega yega Ne chiratidzo kutenderera.Kuti unyatso kudzora kupisa kumberi kweAngle uye jekiseni remafuta mberi kweAngle, iyo crankshaft Angle inogarwa nechero chiratidzo kutenderera (30. Makona madiki. Zviri nyore kuita basa iri nemicrocomputer, uye frequency divider icharatidza imwe neimwe Ne (crank Angle 30) Yakakamurwa zvakaenzana kuita 30 pulse signals, uye imwe neimwe pulse signal yakaenzana ne crank Angle 1. (30. Present 30 = 1) . pulse signal inoenderana necrankshaft Angle ye0.5 (30. ÷60= 0.5. nzvimbo yepiston yepamusoro yakafa centre (TDC) woona kuti humburumbira ripi rave kuda kusvika paTDC chinzvimbo uye mamwe masaini masaini Saka G signal jenareta inonziwo cylinder recognition uye top dead center sign jenareta kana reference signal jenareta.G chiratidzo chejenareta chinosanganisira No.Sensor coils G1 uye G2 inoparadzaniswa ne180 madhigirii.Kukwira, iyo G1 coil inogadzira chiratidzo chinoenderana neinjini yechitanhatu cylinder compression top yakafa centre 10. Chiratidzo chinogadzirwa neG2 coil chinoenderana nelO pamberi pekumanikidza TDC yekutanga silinda yejini.4) Cylinder identification uye yepamusoro yakafa centre chiratidzo. chizvarwa musimboti uye maitiro ekudzora: iyo yekushanda musimboti weG chiratidzo jenareta yakafanana neiyo yeNe chiratidzo jenareta.Kana injini camshaft ichityaira sensor shaft kuti itenderere, iyo flange yeG chiratidzo rotor (No. 1 chiratidzo rotor) inopfuura nepakati remagineti musoro weiyo inonzwa coil neimwe nzira, uye mukaha wemhepo pakati pe rotor flange nemusoro wemagnetic unochinja neimwe nzira. , uye inotsinhanisa electromotive simba siginecha ichave yakanyengerwa mukunzwa coil Gl uye G2.Kana iyo flange chikamu cheG chiratidzo rotor iri padyo neiyo magineti musoro wekunzwa coil G1, iyo yakanaka pulse chiratidzo inogadzirwa mukunzwa coil G1, iyo inonzi G1 chiratidzo, nekuti iro mhepo pakati peflange nemusoro wemagneti inodzikira, magineti flux inowedzera uye iyo magineti yekuchinja shanduko yakanaka.Kana iyo flange chikamu cheG chiratidzo rotor chiri padhuze nesensing coil G2, iro gap remhepo pakati peflange nemusoro wemagineti rinodzikira uye magineti flux inowedzera.