Firikwensin matsayi na Camshaft na'ura ce mai ji, kuma ana kiranta firikwensin siginar daidaitawa, na'urar sanya wariyar silinda ce, shigar da siginar matsayi na camshaft zuwa ECU, shine siginar sarrafa kunna wuta.
1, aiki da nau'in Sensor Matsayi na Camshaft (CPS), aikinsa shine tattara siginar motsi na Camshaft, da shigar da naúrar sarrafa lantarki (ECU), don ƙayyade lokacin kunnawa da lokacin allurar mai. Sensor Matsayin Camshaft (CPS) kuma ana kiranta da Sensor Identification Sensor (CIS), don bambanta daga crankshaft Matsayi Sensor (CPS), gabaɗaya CIS tana wakilta na'urorin firikwensin matsayi na Camshaft. Ayyukan firikwensin matsayi na camshaft shine tattara siginar matsayi na camshaft na rarraba iskar gas da shigar da shi zuwa ECU, don haka ECU na iya gano mataccen mataccen cibiyar matattu na Silinda 1, don aiwatar da sarrafa allurar man fetur na jeri, sarrafa lokacin ƙonewa da sarrafa deignition. Bugu da kari, ana kuma amfani da siginar matsayi na camshaft don gano lokacin kunnawa na farko yayin fara injin. Saboda camshaft matsayi firikwensin iya gane abin da Silinda fistan ne game da isa TDC, shi ake kira Silinda fitarwa firikwensin.photoelectricStructural halaye naPhotoelectric crankshaft da camshaft matsayi firikwensin samar da Nissan kamfanin ne inganta daga rarraba, yafi ta sigina faifai (sigina na'ura), sigina janareta, sigina rarraba na'urorin, firikwensin filogi sigina da waya latsa sigina. a kan shaft na firikwensin. A cikin matsayi kusa da gefen farantin siginar don yin radian tazara iri ɗaya ciki da waje da'ira biyu na ramukan haske. Daga cikin su, ana yin zobe na waje tare da ramuka masu haske na 360 (ragi), kuma radian tazara shine 1. (Ramin mai nuna alamar 0.5., ramin shading wanda aka lissafta 0.5.) , An yi amfani da shi don samar da juyawa na crankshaft da siginar sauri; Akwai bayyanannun ramuka guda 6 (rectangular L) a cikin zoben ciki, tare da tazara na radian 60. , Ana amfani da shi don samar da siginar TDC na kowane Silinda, daga cikinsu akwai rectangle tare da fadi da tsayi dan kadan don samar da siginar TDC na Silinda 1. An kafa siginar siginar a kan mahalli na firikwensin, wanda ya ƙunshi Ne siginar (gudun da siginar Angle) janareta, G siginar (siginar mataccen cibiyar siginar) janareta da siginar sarrafa sigina. Ne siginar da G siginar janareta sun ƙunshi diode haske mai haske (LED) da transistor photosensitive (ko photosensitive diode), LED guda biyu kai tsaye suna fuskantar transistor biyu na hotuna bi da bi.Ka'idar aiki na Disc siginar tana ɗora tsakanin diode mai haske (LED) da transistor photosensitive (ko photodiode). Lokacin da ramin watsa haske akan faifan siginar ya juya tsakanin LED da transistor photosensitive, hasken da LED ke fitarwa zai haskaka transistor photosensitive, a wannan lokacin transistor mai ɗaukar hoto yana kunne, mai karɓar kayan aikin sa yana da ƙasa kaɗan (0.1 ~ O. 3V); Lokacin da sashin shading na siginar faifan yana jujjuya tsakanin LED da transistor photosensitive, hasken da LED ke fitarwa ba zai iya haskaka masu ɗaukar hoto ba, a wannan lokacin transistor mai ɗaukar hoto ya yanke, mai karɓar mai karɓar sa babban matakin (4.8 ~ 5.2V) .Idan faifan siginar ya ci gaba da juyawa, ramin watsawa da sashin shading zai canza wurin ɗaukar hoto da ɗaukar hoto. transistor Collector zai sake fitar da manyan matakai da ƙananan matakai. Lokacin da firikwensin firikwensin tare da crankshaft da camshaft ke juyawa tare da, ramin haske na sigina akan farantin karfe da sashin shading tsakanin LED da transistor mai ɗaukar hoto, farantin siginar siginar hasken LED mai lalacewa zuwa haske da tasirin shading zai canza haske zuwa siginar siginar transistor mai ɗaukar hoto, ana samar da siginar firikwensin kuma crankshaft matsayi da siginar siginar sigina. yana juyawa sau biyu, firikwensin firikwensin yana jujjuya siginar sau ɗaya, don haka firikwensin siginar G zai haifar da bugun jini guda shida. Ne siginar firikwensin zai haifar da siginar bugun jini 360. Domin tazarar radiyon ramin watsa haske na siginar G shine 60. Kuma 120 a kowace juyi na crankshaft. Yana samar da siginar motsa jiki, don haka ana kiran siginar G yawanci 120. Siginar. Garantin shigarwa na ƙira 120. Sigina 70 kafin TDC. (BTDC70., da siginar samar da m rami tare da dan kadan tsawo rectangular nisa daidai da 70 kafin saman matattu cibiyar engine Silinda 1. Don haka da cewa ECU iya sarrafa allura advance Angle da ƙonewa gaba Angle. Domin Ne siginar transmittance rami radian ne 1. (Transparent rami lissafta ga 0.5 pulmoned, haka shading, 0.5). sake zagayowar, babban matakin da ƙananan asusun ajiyar kuɗi na 1 bi da bi, 360 sigina suna nuna juyawa na crankshaft 720. Kowane juyi na crankshaft shine 120 tsayayyen amplitude, kamar yadda aka nuna a cikin Hoto 1. Ƙarshen yana amfani da ka'idar shigar da maganadisu don samar da sigina na matsayi wanda girmansa ya bambanta tare da saurin da yawa daga millivolts ɗari zuwa daruruwan volts, kuma amplitude ya bambanta sosai. na'ura mai juyi, da na'ura mai juyi salient hakori, da iska ratar tsakanin rotor salient hakori da stator Magnetic shugaban, da Magnetic shugaban, da Magnetic jagora farantin da madawwama magnet S sandarka, da iska ratar a cikin Magnetic kewaye zai canza lokaci-lokaci, da kuma Magnetic juriya na Magnetic da'irar da Magnetic jujjuya ta hanyar lantarki coil shugaban zai canza lokaci-lokaci Za a jawo a cikin na'ura mai ji. Lokacin da siginar siginar ta juya agogon hannu, ratar iska tsakanin hakoran rotor convex da kai na maganadisu ya ragu, rashin jin daɗi na magnetic ya ragu, ƙarfin maganadisu φ yana ƙaruwa, canjin canjin juyi yana ƙaruwa (dφ / dt>0), da kuma haifar da ƙarfin lantarki na E yana da kyau (Etor> 0). Magnetic flux φ yana ƙaruwa sosai, canjin canjin juyi shine mafi girma [D φ/dt=(dφ/dt) Max], kuma ƙarfin lantarki da aka jawo E shine mafi girma (E = Emax). yana jujjuya layin tsakiya na hakoran convex da tsakiyar layin magneti na kai, kodayake ratar iska tsakanin haƙorin rotor convex da magnetic head shine mafi ƙanƙanta, juriyar maganadisu ita ce mafi ƙanƙanta, kuma magnetic flux φ shine mafi girma, amma saboda magnetic flux ba zai iya ci gaba da ƙaruwa ba, ƙimar canjin magnetic, lokacin da ƙarfin magnet ɗin ke juyawa shine zero. ya ci gaba da jujjuyawa tare da jujjuyawar agogo sannan kuma haƙoran haƙora ya bar kan mai maganadisu, ratar iska tsakanin haƙori mai ɗaukar hoto da kan maganadisu yana ƙaruwa, ƙin da'irar maganadisu yana ƙaruwa, kuma ƙarfin maganadisu yana raguwa (dφ/dt< 0), don haka induced electrodynamic ƙarfi E ne korau Lokacin da convex hakori ya juya zuwa kan kaifi mai girma, φ da juyi na maganadisu. Matsakaicin ya kai madaidaicin madaidaicin [D φ/df=- (dφ/dt) Max], kuma ƙarfin lantarki da aka jawo E shima ya kai matsakaicin madaidaicin (E = -emax) Don haka ana iya ganin cewa duk lokacin da rotor siginar ya juya haƙori mai dunƙulewa, na'urar firikwensin zai samar da wani lokaci-lokaci musanya ƙarfin lantarki, wato, matsakaicin firikwensin da zai iya nuna mafi ƙarancin ƙarfin wutar lantarki. Sigina na ƙarfin lantarki. rata tsakanin rotor convex hakora da Magnetic kai kai tsaye rinjayar da Magnetic juriya na Magnetic kewaye da fitarwa ƙarfin lantarki na firikwensin nada, da iska rata tsakanin rotor convex hakora da Magnetic kai ba za a iya canza a nufin a yi amfani da idan iska ratar canje-canje, shi dole ne a gyara bisa ga tanadin iska rata ne kullum tsara a cikin kewayon 0.42 mm. crankshaft matsayi firikwensin1) Tsarin fasali na crankshaft matsayi firikwensin: The Magnetic induction crankshaft matsayi firikwensin na Jetta AT, GTX da Santana 2000GSi aka shigar a kan Silinda block kusa da kama a cikin crankcase, wanda aka yafi hada da sigina janareta da sigina rotor.The sigina janareta ne bolted da engine harsashi, da kuma na'ura mai aiki da karfin ruwa toshe da engine harsashi da kuma bolted da engine harsashi. matosai. Har ila yau ana kiran coil ɗin siginar sigina, kuma ana haɗe kan maganadisu zuwa magnet ɗin dindindin. Kan maganadisu kai tsaye gaban nau'in siginar nau'in siginar haƙori wanda aka sanya akan crankshaft, kuma an haɗa kan Magnetic tare da karkiyar maganadisu (Farashin jagorar maganadisu) don samar da madauki na jagorar maganadisu.The siginar na'ura mai juyi yana da nau'in diski mai haƙori, tare da hakora 58 convex, ƙananan hakora 57 da babban haƙori guda ɗaya a ko'ina akan kewayensa. Babban haƙori ya ɓace siginar nunin fitarwa, daidai da injin Silinda 1 ko Silinda 4 matsawar TDC kafin wani kusurwa. Radians na manyan hakora sun yi daidai da na hakora biyu convex da ƙananan hakora uku. Domin siginar siginar tana jujjuyawa tare da ƙugiya, kuma ƙugiya tana juyawa sau ɗaya (360). , siginar rotor shima yana juyawa sau ɗaya (360). , don haka crankshaft juyi Angle shagaltar da convex hakora da hakori lahani a kan kewaye da sigina rotor ne 360. , crankshaft juyi kwana na kowane convex hakori da kananan hakori ne 3. (58 x 3. 57 x + 3. = 345). , The crankshaft Angle lissafta da manyan hakori lahani ne 15. (2 x 3. + 3 x3. = 15). .2) yanayin firikwensin matsayi na crankshaft: lokacin da firikwensin matsayi na crankshaft tare da crankshaft yana jujjuya, ka'idar aiki na firikwensin induction na magnetic, siginar rotor kowane ya juya haƙori mai dunƙulewa, na'urar ganowa za ta haifar da emf mai canzawa na lokaci-lokaci (ƙarfin lantarki a matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin matsakaicin ƙarfin lantarki), ƙirar nada da siginar canzawa daidai. Domin ana samar da siginar rotor da babban haƙori don samar da siginar magana, don haka lokacin da babban haƙori ya juya kan maganadisu, ƙarfin siginar yana ɗaukar lokaci mai tsawo, wato, siginar fitarwa shine siginar bugun jini mai faɗi, wanda yayi daidai da wani kusurwa kafin Silinda 1 ko cylinder 4 compression TDC. Lokacin da na'ura mai sarrafa lantarki (ECU) ta karɓi siginar bugun jini mai faɗi, zai iya sanin cewa babban matsayi na TDC na Silinda 1 ko 4 yana zuwa. Amma ga matsayin TDC mai zuwa na Silinda 1 ko 4, yana buƙatar ƙayyade bisa ga shigarwar siginar daga firikwensin matsayi na camshaft. Tun da siginar siginar yana da haƙoran haƙora 58, na'urar firikwensin zai haifar da siginar wutar lantarki 58 masu canzawa don kowane juyi na siginar siginar (juyin juyi na injin crankshaft) Duk lokacin da siginar siginar ke juyawa tare da crankshaft na injin, na'urar firikwensin yana ciyar da 58 bugun jini a cikin sashin sarrafa lantarki (ECU). Don haka, ga kowane sigina 58 da aka samu ta wurin firikwensin matsayi na crankshaft, ECU ya san cewa injin crankshaft ya juya sau ɗaya. Idan ECU ta karɓi siginar 116000 daga firikwensin matsayi na crankshaft a cikin 1min, ECU na iya ƙididdige cewa saurin crankshaft n shine 2000 (n=116000/58=2000)r/rain; Idan ECU tana karɓar sigina 290,000 a cikin minti ɗaya daga firikwensin matsayi na crankshaft, ECU tana ƙididdige saurin crank na 5000 (n= 29000/58 = 5000) r/min. Ta wannan hanyar, ECU na iya ƙididdige saurin jujjuyawar crankshaft dangane da adadin siginar bugun jini da aka karɓa a minti ɗaya daga firikwensin matsayi na crankshaft. Siginar saurin injin da siginar kaya sune mafi mahimmancin siginar sarrafawa da sigina na tsarin sarrafa lantarki, ECU na iya ƙididdige sigogin sarrafawa na asali guda uku bisa ga waɗannan sigina guda biyu: maɓallin allura na gaba na Angle (lokaci), maɓallin kunnawa na gaba Angle (lokaci) da maɓallin kunnawa (lokacin wutan lantarki na yanzu akan lokaci). sarrafa lokacin allurar mai da lokacin kunnawa yana dogara ne akan siginar da siginar ta haifar. Lokacin da ECu ya karɓi siginar da babban lahani na haƙori ya haifar, yana sarrafa lokacin ƙonewa, lokacin allurar man fetur da farkon lokacin sauyawa na na'urar wuta (watau Angle conduction) bisa ga siginar ƙaramin lahani na haƙori.3) Motar Toyota TCCS Magnetic induction crankshaft da camshaft matsayi SensorToyota Computer Control System (1FCCS) craft camshaft crankshaft System (1FCCS) yana amfani da craft shaft shaft. wanda ya kunshi sassa na sama da na kasa. An raba ɓangaren babba zuwa siginar ganowa crankshaft matsayi (watau gano silinda da siginar TDC, wanda aka sani da siginar G) janareta; An raba ƙananan ɓangaren zuwa saurin crankshaft da siginar kusurwa (wanda ake kira siginar Ne) janareta.1) Tsarin tsarin janareta na siginar Ne: An shigar da janareta na sigina a ƙasan janareta na siginar G, galibi ya ƙunshi na'ura mai juyi sigina na 2, Ne firikwensin coil da kuma shugaban maganadisu. An daidaita siginar siginar a kan ma'aunin firikwensin, firikwensin firikwensin yana motsawa ta hanyar camshaft rarraba gas, babban ƙarshen shaft sanye take da shugaban wuta, rotor yana da hakora 24 convex. Ana daidaita ma'aunin hankali da kai na maganadisu a cikin mahalli na firikwensin, kuma shugaban magnet ɗin yana daidaitawa a cikin ma'aunin ji.2) saurin sauri da ƙa'idar ƙirƙirar siginar Angle da tsarin sarrafawa: lokacin da injin crankshaft, bawul camshaft firikwensin firikwensin, sa'an nan kuma fitar da jujjuyawar jujjuyawar, na'ura mai jujjuyawar haƙoran haƙora da ratawar iska tsakanin madaidaicin kai yana canzawa a madadin, madaidaicin ka'ida ta canza canjin aiki, canjin yanayin maganadisu. firikwensin induction yana nuna cewa a cikin na'ura mai aunawa na iya samar da madaidaicin ƙarfin motsa jiki. Saboda siginar na'urar tana da hakora 24 convex, na'urar firikwensin zai samar da sigina 24 masu canzawa lokacin da na'urar ta juya sau ɗaya. Kowane juyi na firikwensin shaft (360). Wannan yayi daidai da juyi biyu na injin crankshaft (720). , don haka madaidaicin sigina (watau lokacin sigina) yayi daidai da jujjuyawar crank na 30. (720. Present 24 = 30). , yayi daidai da jujjuyawar shugaban wuta 15. (30. Present 2 = 15). . Lokacin da ECU ta karɓi sigina 24 daga janareta siginar Ne, ana iya sanin cewa crankshaft yana juyawa sau biyu kuma shugaban kunnawa yana juyawa sau ɗaya. Shirin ciki na ECU na iya ƙididdigewa da ƙayyade saurin crankshaft injin da saurin kan kunna wuta gwargwadon lokacin kowane siginar Ne. Domin daidai sarrafa ƙonewa gaba Angle da man allura gaba Angle, da crankshaft Angle shagaltar da kowane sigina sake zagayowar (30. The sasanninta ne karami. Yana da matukar dace don cim ma wannan aiki da microcomputer, da mita divider zai sigina kowane Ne (crank Angle 30) An daidai raba zuwa 30 bugun jini sigina zuwa equipulse sigina, kuma kowane equipulse sigina. (30. Present 30 = 1). (TDC) da kuma gane abin da Silinda ne game da isa TDC matsayi da kuma sauran reference sakonni coil yana samar da siginar da ya dace da injin na shida Silinda matsawa saman matattu cibiyar 10. Siginar da G2 coil ya haifar ya dace da lO kafin matsawa TDC na silinda na farko na injin.4) Gano Silinda da babban mataccen siginar siginar cibiyar samar da ka'ida da tsarin sarrafawa: ka'idar aiki na G siginar janareta daidai yake da na Ne siginar janareta. Lokacin da injin camshaft ya motsa firikwensin firikwensin don juyawa, flange na siginar siginar G (Lamba 1 siginar siginar) ya ratsa ta cikin madaidaicin kan na'urar ganowa a madadin, kuma tazarar iska tsakanin flange na rotor da kan maganadisu yana canzawa a madadin, kuma za'a shigar da siginar wutar lantarki mai canzawa a cikin Gl da Sensing na Gl. Lokacin da ɓangaren flange na G siginar na'ura mai juyi yana kusa da shugaban maganadisu na Sensing coil G1, ana haifar da siginar bugun jini mai kyau a cikin ji na nada G1, wanda ake kira siginar G1, saboda tazarar iska tsakanin flange da kai na maganadisu yana raguwa, ƙarfin maganadisu yana ƙaruwa kuma ƙimar canjin maganadisu tana da inganci. Lokacin da ɓangaren flange na siginar G yana kusa da na'urar ji na G2, tazarar iska tsakanin flange da shugaban maganadisu yana raguwa kuma ɗigon maganadisu yana ƙaruwa.
