Chidzitiro chepakutanga cheSAIC MAXUS V80 chekudziisa muviri – National five 0281002667

Sensor yenzvimbo yeCamshaft mudziyo wekunzwa, unonziwo synchronous signal sensor, mudziyo wekusiyanisa silinda, chiratidzo chekuisa camshaft position kuECU, chiratidzo chekudzora kupisa.

1, basa uye mhando yeCamshaft Position Sensor (CPS), basa rayo nderekuunganidza chiratidzo cheCamshaft chinofamba cheAngle, uye kuisa electronic control unit (ECU), kuitira kuziva nguva yekupisa uye nguva yekuisa mafuta. Camshaft Position Sensor (CPS) inozivikanwawo seCylinder Identification Sensor (CIS), kuitira kusiyanisa kubva kuCrankshaft Position Sensor (CPS), maCamshaft position sensors anowanzo miririrwa neCIS. Basa reCamshaft position sensor nderekuunganidza chiratidzo chenzvimbo yecamshaft yekugovera gas uye kuiisa kuECU, kuitira kuti ECU igone kuziva pakati pe compression top dead yecylinder 1, kuitira kuti iite sequential fuel injection control, ignition time control uye deignition control. Pamusoro pezvo, chiratidzo checamshaft position chinoshandiswawo kuziva nguva yekutanga yekupisa panguva yekutanga kweinjini. Nekuti sensor yenzvimbo ye camshaft inogona kuziva kuti piston ye cylinder ipi iri kuda kusvika kuTDC, inonzi sensor yekuziva cylinder. Photoelectric Hunhu hwechimiro che sensor ye photoelectric crankshaft ne camshaft inogadzirwa nekambani yeNissan hunovandudzwa kubva kumutengesi, kunyanya ne signal disk (signal rotor), signal generator, distribution appliances, sensor housing uye wire harness plug. Signal disk ndiyo signal rotor ye sensor, iyo inodzvanywa pa sensor shaft. Panzvimbo iri pedyo nemupendero we signal plate kugadzira interval radian yakaenzana mukati nekunze kwemakomba maviri echiedza. Pakati pawo, outer ring yakagadzirwa nemakomba mazana matatu nemakumi matanhatu (transparent holes), uye interval radian i1. (Transparent hole inoverengerwa 0.5., shading hole inoverengerwa 0.5.), inoshandiswa kugadzira crankshaft rotation uye speed signal; Kune makomba matanhatu akajeka (rectangular L) mu inner ring, ine interval ye60 radians. , inoshandiswa kugadzira chiratidzo cheTDC chesilinda yega yega, pakati payo paine rectangle ine mupendero wakafara wakareba zvishoma kugadzira chiratidzo cheTDC chesilinda. 1. Jenareta yechiratidzo yakaiswa pahousing ye sensor, iyo inoumbwa nejenareta yeNe signal (speed and Angle signal), jenareta yeG signal (top dead center signal) uye circuit yekugadzirisa masaini. Jenareta yeNe signal neG signal inoumbwa ne light emitting diode (LED) ne photosensitive transistor (kana photosensitive diode), ma LED maviri akatarisana zvakananga nema transistor maviri ane photosensitive zvakateerana. Nheyo yekushanda ye signal disc yakaiswa pakati pe light-emitting diode (LED) ne photosensitive transistor (kana photodiode). Kana gomba re transmittance re light pa signal disk richitenderera pakati pe LED ne photosensitive transistor, chiedza chinoburitswa ne LED chinovhenekera transistor ine photosensitive, panguva ino transistor ine photosensitive iri kubatidzwa, collector output yayo yakaderera (0.1 ~ O. 3V); Kana chikamu chekufukidza chiratidzo chedhisiki chikatenderera pakati pe LED ne transistor ine photosensitive, chiedza chinoburitswa ne LED hachigone kuvhenekera transistor ine photosensitive, panguva ino transistor ine photosensitive inocheka, collector output yayo yepamusoro (4.8 ~ 5.2V). Kana dhisiki rechiratidzo rikaramba richitenderera, gomba rekutenderera nechikamu chekufukidza zvichachinja LED kuita transmittance kana shading, uye photosensitive transistor collector ichachinjana mazinga akakwirira neakaderera. Kana sensor axis ine crankshaft ne camshaft ikatenderera ne, gomba rechiedza paplate nechikamu chekufukidza pakati pe LED ne transistor ine photosensitive inotenderera, LED light signal plate ye pervious to light ne shading effect ichachinjana irradiation kune signal generator ye photosensitive transistor, sensor signal inogadzirwa uye crankshaft ne camshaft position zvinoenderana ne pulse signal. Sezvo crankshaft ichitenderera kaviri, sensor shaft inotenderera chiratidzo kamwe chete, saka G signal sensor ichagadzira ma pulses matanhatu. Ne signal sensor ichagadzira ma pulse signals 360. Nekuti nguva ye radian yegomba rinotumira chiedza rechiratidzo cheG i60. Uye 120 pakutenderera kwe crankshaft. Inogadzira chiratidzo che impulse, saka chiratidzo cheG chinowanzo nzi 120. Chiratidzo. Garandi yekuisa dhizaini 120. Chiratidzo 70 pamberi peTDC. (BTDC70. , uye chiratidzo chinogadzirwa negomba rinoonekera rine upamhi hwakareba zvishoma hwe rectangular chinoenderana ne70 pamberi penzvimbo yepamusoro ye silinda yeinjini 1. Kuti ECU ikwanise kudzora Angle yepamberi ye injection uye Angle yepamberi ye ignition. Nekuti Ne signal transmittance hole interval radian i1. (Hole rakajeka rakaverengerwa 0.5. , shading hole rakaverengerwa 0.5.) , saka mukutenderera kwega kwega kwepulse, level yepamusoro nelow level zvinoverengerwa 1 zvakateerana. Kutenderera kweCrankshaft, masaini 360 anoratidza kutenderera kwecrankshaft 720. Kutenderera kwega kwega kwecrankshaft i120. , G signal sensor inogadzira chiratidzo chimwe, Ne signal sensor inogadzira masaini 60. Mhando ye induction yemagnetic Magnetic induction position sensor inogona kukamurwa kuita Hall type ne magnetoelectric type. Yekutanga inoshandisa hall effect kugadzira position signal ine fixed amplitude, sezvakaratidzwa muMufananidzo 1. Yekupedzisira inoshandisa musimboti we magnetic induction kugadzira masaini enzvimbo ane amplitude inosiyana ne frequency. Amplitude yayo inosiyana nekumhanya kubva pamazana akawanda millivolts kusvika mazana emavolts, uye amplitude inosiyana zvikuru. Izvi zvinotevera sumo yakadzama yekushanda kwesensor: Nzira iyo magnetic force line inopfuura nayo igedhi remhepo riri pakati pepermanent magnet N pole nerotor, rotor salient tooth, air gap iri pakati perotor salient tooth ne stator magnetic head, magnetic head, magnetic guide plate nepermanent magnet S pole. Kana signal rotor ichitenderera, air gap mu magnetic circuit ichachinja nguva nenguva, uye magnetic resistance ye magnetic circuit ne magnetic flux kuburikidza ne signal coil head zvichachinja nguva nenguva. Zvichienderana nemutemo we electromagnetic induction, alternating electromotive force ichaitwa mu sensing coil. Kana signal rotor ichitenderera wachi, air gap iri pakati pe rotor convex teeth ne magnetic head inoderera, magnetic circuit kusada inoderera, magnetic flux φ inowedzera, flux change rate inowedzera (dφ/dt>0), uye induced electromotive force E iri positive (E>0). Kana convex teeth ye rotor iri pedyo nemucheto we magnetic head, magnetic flux φ inowedzera zvakanyanya, flux change rate ndiyo yakakura. [D φ/dt=(dφ/dt) Max], uye simba remagetsi rinokonzerwa E ndiro rakakwirira (E=Emax). Mushure mekunge rotor yatenderera panzvimbo yepoindi B, kunyangwe magnetic flux φ ichiri kuwedzera, asi mwero wekuchinja kwemagnetic flux unoderera, saka simba remagetsi rinokonzerwa E rinoderera. Kana rotor ikatenderera kumutsara wepakati wezino rakatenderedzwa uye mutsetse wepakati wemusoro wemagnetic, kunyangwe mukaha wemhepo uri pakati pezino rakatenderedzwa nerotor nemusoro wemagnetic uri mudiki, resistance yemagnetic yedunhu remagnetic ndiyo diki, uye magnetic flux φ ndiyo yakakura, asi nekuti magnetic flux haigone kuramba ichiwedzera, mwero wekuchinja kwemagnetic flux zero, saka simba remagetsi rinokonzerwa E izero. Kana rotor ikaramba ichitenderera nenzira yewachi uye zino rakatenderedzwa richisiya musoro wemagnetic, mukaha wemhepo uri pakati pezino rakatenderedzwa nemusoro wemagnetic unowedzera, kusada kwedunhu remagnetic kunowedzera, uye magnetic flux inoderera (dφ/dt< 0), saka simba remagetsi rinokonzerwa E irombo. Kana zino rakatenderedzwa richitenderera kumucheto wekubuda kwemusoro wemagineti, magnetic flux φ inodzikira zvakanyanya, mwero wekuchinja kweflux unosvika pa negative maximum [D φ/df=-(dφ/dt) Max], uye simba remagetsi rinoita kuti E risvikewo pa negative maximum (E= -emax). Saka zvinoonekwa kuti pese panotenderera zino rakatenderedzwa nesignal rotor, sensor coil inoburitsa simba remagetsi rinotenderera nguva nenguva, kureva kuti, simba remagetsi rinoonekwa rakakwirira uye rakaderera, sensor coil inoburitsa chiratidzo chemagetsi chinotenderera chinoenderana. Chinhu chakanaka che magnetic induction sensor ndechekuti haidi simba rekunze, magnet inogara kwenguva refu inoita basa rekushandura simba remagetsi kuita simba remagetsi, uye simba rayo remagetsi harizorasikirwi. Kana kumhanya kweinjini kuchichinja, kumhanya kwekutenderera kwemazino akatenderedzwa erotor kuchachinja, uye mwero wekuchinja kweflux mumoyo uchachinjawo. Kumhanya kwakakwira, mwero wekuchinja kweflux, simba remagetsi rinopinda mu sensor coil rakakwira. Sezvo mhepo iri pakati pemazino akatenderedzwa erotor nemusoro wemagineti zvichikanganisa zvakananga. Kusasimba kwemagineti kwedunhu remagineti uye voltage inobuda ye sensor coil, mukana wemhepo uri pakati pemazino e rotor convex nemusoro we magnetic haugone kuchinjwa paunoda. Kana mukana wemhepo ukachinja, unofanirwa kugadziriswa zvichienderana nezvinodiwa. Mukana wemhepo unowanzo gadzirwa mukati me 0.2 ~ 0.4mm.2) Jetta, Santana car magnetic induction crankshaft position sensor1) Hunhu hwechimiro che crankshaft position sensor: Iyo magnetic induction crankshaft position sensor yeJetta AT, GTX neSantana 2000GSi yakaiswa pa cylinder block pedyo ne clutch mu crankcase, iyo inonyanya kugadzirwa ne signal generator ne signal rotor. Iyo signal generator yakasungirirwa ku engine block uye ine permanent magnets, sensing coils, uye wiring harness plugs. Iyo sensing coil inonziwo signal coil, uye magnetic head yakasungirirwa ku permanent magnet. Musoro wemagineti wakatarisana zvakananga nerotor yechiratidzo chedhisiki rezino yakaiswa pacrankshaft, uye musoro wemagineti wakabatana neyoko remagineti (plate yekutungamira yemagineti) kuti ugadzire loop yekutungamira yemagineti. Rotor yechiratidzo ndeyerudzi rwedhisiki rine meno, ine mazino makumi mashanu nemasere akakombama, mazino madiki makumi mashanu nenomwe uye zino guru rimwe rakakamurwa zvakaenzana padenderedzwa rayo. Zino guru harina chiratidzo chekureva chinobuda, chinoenderana nesilinda yeinjini 1 kana silinda 4 compression TDC pamberi peAngle yakati. Ma radians emazino makuru akaenzana neemazino maviri akakombama uye mazino matatu madiki. Nekuti rotor yechiratidzo inotenderera necrankshaft, uye crankshaft inotenderera kamwe chete (360). , rotor yechiratidzo inotendererawo kamwe chete (360). , saka crankshaft rotation Angle inobatwa nemazino akakombama uye zvirema zvemazino padenderedzwa rerotor yechiratidzo i360. , crankshaft rotation Angle yezino rega rega rakakombama uye zino diki i3. (58 x 3. 57 x + 3. = 345). , Angle ye crankshaft inoverengerwa nedambudziko guru rezino i15. (2 x 3. + 3 x3. = 15). .2) mamiriro ekushanda kwe crankshaft position sensor: kana crankshaft position sensor ine crankshaft ichitenderera, musimboti wekushanda we magnetic induction sensor, chiratidzo che rotor chimwe nechimwe chinotenderedza zino rakatenderera, sensing coil ichagadzira periodic alternating emf (simba remagetsi muhuwandu uye hushoma), coil inoburitsa alternating voltage signal zvinoenderana. Nekuti signal rotor inopiwa nezino guru kuti igadzire reference signal, saka kana zino guru richitenderedza magnetic head, signal voltage inotora nguva yakareba, kureva kuti, output signal i wide pulse signal, iyo inoenderana neAngle before cylinder 1 kana cylinder 4 compression TDC. Kana electronic control unit (ECU) ikagamuchira wide pulse signal, inogona kuziva kuti TDC position yepamusoro ye cylinder 1 kana 4 iri kuuya. Kana iri TDC position iri kuuya ye cylinder 1 kana 4, inofanirwa kusarudza zvichienderana nesignal input kubva ku camshaft position sensor. Sezvo rotor yechiratidzo ine mazino makumi mashanu nemasere akatenderedzwa, iyo sensor coil ichagadzira masaini makumi mashanu nemasere emagetsi anochinja-chinja pakuchinja kwega kwega kweiyo signal rotor (kutenderera kamwe chete kwe crankshaft yeinjini). Nguva imwe neimwe iyo signal rotor inotenderera pamwe chete ne crankshaft yeinjini, iyo sensor coil inopa ma pulses makumi mashanu nemasere mu electronic control unit (ECU). Saka, pazviratidzo makumi mashanu nemasere zvinogamuchirwa ne crankshaft position sensor, ECU inoziva kuti crankshaft yeinjini yakatenderera kamwe chete. Kana ECU ikagamuchira masaini 116000 kubva ku crankshaft position sensor mukati me1 min, ECU inogona kuverenga kuti crankshaft speed n i2000(n=116000/58=2000)r/rain; Kana ECU ikagamuchira masaini 290,000 paminiti kubva ku crankshaft position sensor, ECU inoverenga crank speed ye5000(n= 29000/58 =5000)r/min. Nenzira iyi, ECU inogona kuverenga kumhanya kwekutenderera kwecrankshaft zvichienderana nehuwandu hwezviratidzo zvepulse zvinogamuchirwa paminiti kubva ku crankshaft position sensor. Chiratidzo chekumhanya kweinjini uye chiratidzo chekuremerwa ndiwo masaini ekudzora akakosha uye ekutanga e electronic control system, ECU inogona kuverenga ma parameter matatu ekutanga ekudzora zvichienderana nezviratidzo izvi zviviri: basic injection advance Angle (nguva), basic ignition advance Angle (nguva) uye ignition conduction Angle (ignition coil primary current on time). Jetta AT na GTx, Santana 2000GSi mota magnetic induction type crankshaft position sensor signal rotor inogadzirwa nechiratidzo sechiratidzo chereferensi, ECU control yenguva yekupinza mafuta uye nguva yekubatidza yakavakirwa pachiratidzo chinogadzirwa nechiratidzo. Kana ECu ikagamuchira chiratidzo chinogadzirwa nekanganiso kezino guru, inodzora nguva yekupisa, nguva yekuisa mafuta uye nguva yekuchinja kwemagetsi ye coil yekupisa (kureva Angle yekufambisa) zvichienderana nechiratidzo chekanganiso kezino diki.3) Toyota car TCCS magnetic induction crankshaft uye camshaft position sensorToyota Computer Control System (1FCCS) inoshandisa magnetic induction crankshaft uye camshaft position sensor yakagadziriswa kubva kumutengesi, ine zvikamu zvepamusoro nepazasi. Chikamu chepamusoro chakakamurwa kuita chiratidzo chekuona crankshaft position reference signal (kureva cylinder identification uye TDC signal, inozivikanwa seG signal) generator; Chikamu chepazasi chakakamurwa kuita crankshaft speed uye corner signal (inonzi Ne signal) generator.1) Hunhu hwemaumbirwo eNe signal generator: Ne signal generator yakaiswa pasi peG signal generator, inonyanya kuumbwa neNo. 2 signal rotor, Ne sensor coil uye magnetic head. Signal rotor yakasungirirwa pasensor shaft, sensor shaft inotungamirwa negas distribution camshaft, mugumo wepamusoro weshaft une fire head, rotor ine 24 convex teeth. Iyo sensing coil ne magnetic head zvakaiswa mu sensor housing, uye magnetic head yakaiswa mu sensing coil.2) musimboti wekumhanya uye Angle signal generation uye maitiro ekudzora: kana injini crankshaft, valve camshaft sensor signals, wobva watyaira rotor rotation, rotor inobuda mazino nemhepo pakati pe magnetic head zvinochinja zvichichinja, sensing coil mu magnetic flux zvinochinja zvichichinja, ipapo musimboti wekushanda we magnetic induction sensor unoratidza kuti mu sensing coil inogona kugadzira alternating inductive electromotive force. Nekuti signal rotor ine 24 convex dental, sensor coil ichagadzira 24 alternating signals kana rotor ichitenderera kamwe chete. Kutenderera kwega kwese kwe sensor shaft (360). Izvi zvakaenzana nekuchinja kaviri kwe crankshaft yeinjini (720). , saka alternating signal signal (kureva nguva yechiratidzo) yakaenzana ne crank rotation ye30. (720. Present 24 = 30). , yakaenzana nekutenderera kwe fire head 15. (30. Present 2 = 15). . Kana ECU ikagamuchira masaini makumi maviri nemana kubva kuNe signal generator, zvinozivikanwa kuti crankshaft inotenderera kaviri uye ignition head inotenderera kamwe chete. Purogiramu yemukati yeECU inogona kuverenga nekuona kumhanya kwecrankshaft yeinjini uye kumhanya kweignition head zvichienderana nenguva yeNe signal cycle yega yega. Kuti udzore nemazvo Angle yepamberi yekupisa uye injection yemafuta, crankshaft Angle inobatwa nechiratidzo chega chega (30. Makona madiki. Zviri nyore kwazvo kuita basa iri ne microcomputer, uye frequency divider icharatidza Ne yega yega (crank Angle 30). Yakakamurwa zvakaenzana kuita 30 pulse signals, uye chiratidzo chega chega chekurova chakaenzana necrank Angle 1. (30. Present 30 = 1). . Kana chiratidzo chega chega cheNe chakakamurwa zvakaenzana kuita 60 pulse signals, chiratidzo chega chega chekurova chinoenderana necrankshaft Angle ye0.5. (30. ÷60 = 0.5. . Kurongeka kwacho kunotsanangurwa nezvinodiwa neAngle precision uye dhizaini yepurogiramu. 3) Hunhu hwechimiro cheG signal generator: G signal generator inoshandiswa kuona nzvimbo yepiston top dead center (TDC) uye kuona kuti ndeipi cylinder iri kuda kusvika TDC position nedzimwe reference signals. Saka G signal generator inonziwo cylinder recognition uye top dead center signal generator kana reference signal generator. G signal generator ine No. 1 signal rotor, sensing coil G1, G2 uye magnetic musoro, nezvimwewo. Rotor yechiratidzo ine maflange maviri uye yakasungirirwa pashaft ye sensor. Ma sensor coils G1 neG2 akaparadzaniswa nemadhigirii 180. Kuisa, G1 coil inogadzira chiratidzo chinoenderana neinjini sixth cylinder compression top dead center 10. Chiratidzo chinogadzirwa neG2 coil chinoenderana ne lO pamberi pekumanikidzwa kweTDC ye cylinder yekutanga yeinjini.4) Kuzivikanwa kwe cylinder uye top dead center signal generation principle uye control process: musimboti wekushanda weG signal generator wakafanana neweNe signal generator. Kana engine camshaft ichityaira sensor shaft kuti itenderere, flange yeG signal rotor (No. 1 signal rotor) inopfuura nepakati pemagnetic head ye sensor coil ichichinjana, uye mhepo inobuda pakati pe rotor flange ne magnetic head inoshandukana, uye alternating electromotive force signal ichakonzereswa mu sensor coil Gl neG2. Kana chikamu cheflange cheG signal rotor chiri pedyo nemusoro wemagineti we sensing coil G1, chiratidzo chekupusha chakanaka chinogadzirwa mu sensing coil G1, iyo inonzi G1 signal, nekuti mhepo iri pakati peflange ne magnetic head inoderera, magnetic flux inowedzera uye magnetic flux change rate inova yakanaka. Kana chikamu cheflange cheG signal rotor chiri pedyo ne sensing coil G2, mhepo iri pakati peflange ne magnetic head inoderera uye magnetic flux inowedzera.