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Camshaft position sensor ndi chipangizo chodzidzimutsa, chomwe chimatchedwanso synchronous signal sensor, ndi chipangizo choyikirapo kusankhana, choyika chizindikiro cha camshaft ku ECU, ndicho chizindikiro choyatsira moto.

1, ntchito ndi mtundu wa Camshaft Position Sensor (CPS), ntchito yake ndikusonkhanitsa chizindikiro cha Camshaft Moving Angle, ndikulowetsa zamagetsi zamagetsi (ECU), kuti mudziwe nthawi yoyatsira ndi nthawi yobaya mafuta.Camshaft Position Sensor (CPS) imadziwikanso kuti Cylinder Identification Sensor (CIS), kuti tisiyanitse ndi crankshaft Position Sensor (CPS), masensa a Camshaft nthawi zambiri amaimiridwa ndi CIS.Ntchito ya camshaft udindo sensa ndi kusonkhanitsa udindo chizindikiro cha camshaft kugawa mpweya ndi athandizira kuti ECU, kuti ECU kudziwa psinjika pamwamba akufa pakati yamphamvu yamphamvu 1, kuti achite motsatizana ulamuliro jekeseni mafuta, kuwongolera nthawi yoyatsira ndi kuwongolera.Kuphatikiza apo, chizindikiro cha camshaft chimagwiritsidwanso ntchito kuzindikira mphindi yoyamba yoyatsira injini poyambira.Chifukwa camshaft position sensa imatha kuzindikira pistoni yanji yomwe yatsala pang'ono kufika ku TDC, imatchedwa cylinder recognition sensor.photoelectricStructural properties ofPhotoelectric crankshaft ndi camshaft position sensor yopangidwa ndi kampani ya Nissan imapangidwa bwino kuchokera kwa distributor, makamaka ndi chizindikiro disk (signal rotor. ), jenereta yamagetsi, zida zogawira, nyumba ya sensor ndi plug ya waya.Pamalo pafupi ndi m'mphepete mwa mbale chizindikiro kupanga yunifolomu imeneyi radian mkati ndi kunja mabwalo awiri a mabowo kuwala.Pakati pawo, mphete yakunja imapangidwa ndi mabowo owoneka bwino a 360 (mipata), ndipo radian yapakati ndi 1. (Bowo lowonekera limakhala ndi 0.5. , dzenje la shading la 0.5.) , lomwe limagwiritsidwa ntchito popanga kuzungulira kwa crankshaft ndi chizindikiro cha liwiro;Pali mabowo 6 owoneka bwino (makona anayi L) mkati mwa mphete yamkati, yokhala ndi ma radian 60., amagwiritsidwa ntchito popanga chizindikiro cha TDC cha silinda iliyonse, pakati pawo pali rectangle yokhala ndi m'mphepete mwake motalika pang'ono kuti apange chizindikiro cha TDC cha silinda 1. Jenereta ya chizindikiro imayikidwa pa nyumba ya sensa, yomwe imapangidwa ndi chizindikiro cha Ne (liwiro ndi Angle signal) jenereta, G chizindikiro (chizindikiro chapamwamba chakufa) jenereta ndi makina opangira ma signal.Ne ndi jenereta ya siginecha ya G zimapangidwa ndi kuwala kotulutsa kuwala (LED) ndi transistor ya photosensitive (kapena photosensitive diode), ma LED awiri akuyang'anizana ndi ma transistors awiri motsatana. (LED) ndi transistor photosensitive (kapena photodiode).Pamene kuwala transmittance dzenje pa chizindikiro litayamba azungulira pakati pa LED ndi photosensitive transistor, kuwala opangidwa ndi LED adzaunikira photosensitive transistor, pa nthawi imeneyi transistor photosensitive ndi, wokhometsa ake linanena bungwe otsika mlingo (0.1 ~ O. 3V);Pamene shading mbali ya chizindikiro litayamba azungulira pakati LED ndi photosensitive transistor, kuwala anatulutsa THE LED sangathe kuunikira photosensitive transistor, pa nthawi imeneyi transistor photosensitive anadulidwa, wokhometsa ake linanena bungwe mkulu mlingo (4.8 ~ 5.2V). Ngati chizindikiro cha disk chikapitilirabe kusinthasintha, dzenje la transmittance ndi gawo la shading lisintha mosinthana kuti LED ikhale yodutsa kapena shading, ndipo chojambulira cha photosensitive transistor chimatulutsa milingo yayikulu komanso yotsika.Pamene makina a sensa omwe ali ndi crankshaft ndi camshaft azungulira, dzenje lowala pa mbale ndi gawo la shading pakati pa LED ndi photosensitive transistor kutembenuka, chizindikiro cha kuwala kwa LED chowala ndi kuwala kwa shading chidzasintha kuwala kwa jenereta ya photosensitive. transistor, chizindikiro cha sensa chimapangidwa ndipo malo a crankshaft ndi camshaft omwe amagwirizana ndi chizindikiro cha pulse.Popeza kuti crankshaft imazungulira kawiri, shaft ya sensor imasinthasintha chizindikiro kamodzi, kotero kuti G signal sensor imapanga ma pulse asanu ndi limodzi.Ne sensor sensor ipanga ma 360 pulse sign.Chifukwa nthawi yotalikirapo ya dzenje lotumizira kuwala kwa G siginecha ndi 60. Ndipo 120 pa kuzungulira kwa crankshaft.Zimapanga chizindikiro chodzidzimutsa, choncho chizindikiro cha G nthawi zambiri chimatchedwa 120. Chizindikiro.Chitsimikizo chokhazikitsa mapangidwe 120. Signal 70 pamaso pa TDC.(BTDC70. , ndi chizindikiro kwaiye ndi dzenje mandala ndi yaitali pang'ono amakona anayi m'lifupi limafanana 70 pamaso pamwamba akufa pakati yamphamvu injini 1. Kuti ECU angathe kulamulira jekeseni pasadakhale ngodya ndi poyatsira patsogolo ngodya. Chifukwa Ne chizindikiro transmittance dzenje. interval radian ndi 1. (Bowo lowonekera limakhala ndi 0.5. , dzenje la shading limakhala ndi 0.5.) , kotero pamtundu uliwonse wa pulse, mlingo wapamwamba ndi akaunti yotsika kwambiri ya 1. Kuzungulira kwa Crankshaft, zizindikiro za 360 zimasonyeza kuzungulira kwa crankshaft 720. kuzungulira kwa crankshaft ndi 120. , G sensor sensor imapanga chizindikiro chimodzi, Ne sensor sensor imapanga zizindikiro 60. Magnetic induction type sensor Magnetic induction position imatha kugawidwa mu Hall mtundu ndi magnetoelectric mtundu. , monga momwe tawonetsera pa Chithunzi 1. Chotsatirachi chimagwiritsa ntchito mfundo ya kulowetsa maginito kuti apange zizindikiro za malo omwe matalikidwe ake amasiyana ndi mafupipafupi.Zotsatirazi ndikuwulula mwatsatanetsatane mfundo yogwirira ntchito ya sensa: Mfundo yogwirira ntchito Njira yomwe mzere wa mphamvu ya maginito umadutsamo ndi kusiyana kwa mpweya pakati pa maginito okhazikika a N pole ndi rotor, dzino loyera la rotor, kusiyana kwa mpweya pakati pa rotator salient dzino ndi stator maginito mutu, mutu maginito, maginito kalozera mbale ndi maginito okhazikika S pole.Chizindikiro cha rotor chikazungulira, kusiyana kwa mpweya mu dera la maginito kumasintha nthawi ndi nthawi, ndipo kukana kwa maginito kwa maginito ozungulira ndi maginito othamanga kudzera pamutu wa coil chizindikiro kudzasintha nthawi ndi nthawi.Malinga ndi mfundo ya kulowetsedwa kwa ma elekitiroma, mphamvu yosinthira ma elekitirodi imapangitsidwa mu coil yozindikira. Wozungulira chizindikiro chikazungulira mozungulira, kusiyana kwa mpweya pakati pa mano opindika a rotor ndi mutu wa maginito kumachepa, kusafuna kwa maginito kumachepa, kusinthasintha kwa maginito φ. kumawonjezeka, kusinthasintha kwa kusintha kwamadzi kumawonjezeka (dφ/dt>0), ndipo mphamvu ya electromotive yochititsa chidwi E imakhala yabwino (E> 0).Pamene mano opindika a rotor ali pafupi ndi m'mphepete mwa mutu wa maginito, mphamvu ya maginito φ imawonjezeka kwambiri, kusintha kwa kusintha kwa kayendedwe kake kumakhala kwakukulu kwambiri [D φ/dt=(dφ/dt) Max], ndipo mphamvu ya electromotive E ndi apamwamba kwambiri (E=Emax).Pambuyo pozungulira kuzungulira malo a mfundo B, ngakhale kuti maginito φ akuwonjezeka, koma kusintha kwa kusintha kwa maginito kumachepa, motero mphamvu ya electromotive E imachepa. ndi mzere wapakati wa mutu wa maginito, ngakhale kusiyana kwa mpweya pakati pa dzino la rotor convex ndi mutu wa maginito ndi kakang'ono kwambiri, mphamvu ya maginito ya maginito ndi yaying'ono kwambiri, ndipo maginito flux φ ndi yaikulu, koma chifukwa maginito Kuthamanga sikungapitirire kuwonjezeka, kusintha kwa kusintha kwa maginito ndi ziro, kotero mphamvu ya electromotive E ndi zero. Pamene rotor ikupitiriza kuyendayenda motsatira njira yowongoka ndipo dzino lozungulira limasiya mutu wa maginito, kusiyana kwa mpweya pakati pa Dzino lopindika ndi mutu wa maginito ukuwonjezeka, kusafuna kwa maginito kumawonjezeka, ndipo kusinthasintha kwa maginito kumachepa (dφ/dt< 0), kotero kuti mphamvu ya electrodynamic E yochititsa chidwi imakhala yolakwika.Dzino lopindika likatembenukira m'mphepete mwa kusiya mutu wa maginito, mphamvu ya maginito φ imachepa kwambiri, kusintha kwa kusinthaku kumafika pamlingo woyipa [D φ/df=-(dφ/dt) Max], ndi mphamvu ya electromotive E. imafikanso pamlingo woyipa kwambiri (E = -emax) .Motero zitha kuwoneka kuti nthawi iliyonse pomwe rotor yolumikizira imatembenuza dzino lotukuka, cholumikizira cha sensor chidzatulutsa mphamvu yamagetsi yosinthira nthawi ndi nthawi, ndiko kuti, mphamvu ya electromotive ikuwoneka yochulukirapo komanso mtengo wocheperako, koyilo ya sensa idzatulutsa chizindikiro chofananira chamagetsi.Ubwino wopambana wa maginito induction sensor ndikuti sichifunikira mphamvu yakunja, maginito okhazikika amatenga gawo losinthira mphamvu yamakina kukhala mphamvu yamagetsi, ndipo mphamvu yake yamaginito sidzatayika.Liwiro la injini likasintha, liwiro lozungulira la mano opindika a rotor lidzasintha, ndipo kusinthasintha kwapakatikati kudzasinthanso.Kuthamanga kwapamwamba, kuchulukira kwa kusintha kwa kusintha, kumapangitsanso mphamvu yamagetsi yopangira magetsi mu coil ya sensa. koyilo ya sensa, kusiyana kwa mpweya pakati pa mano a rotor convex ndi mutu wa maginito sungathe kusinthidwa momwe mungagwiritsire ntchito.Ngati kusiyana kwa mpweya kumasintha, kuyenera kusinthidwa malinga ndi zomwe zilipo.Mpweya wa mpweya nthawi zambiri umapangidwa mkati mwa 0.2 ~ 0.4mm.2) Jetta, Santana car magnetic induction crankshaft position sensor1) Mapangidwe a crankshaft position sensor: Magnetic induction crankshaft position sensor ya Jetta AT, GTX ndi Santana 2000GSi yaikidwa. pa yamphamvu chipika pafupi zowalamulira mu crankcase, amene makamaka wapangidwa ndi chizindikiro jenereta ndi chizindikiro rotor.The chizindikiro jenereta ndi bolted kwa chipika injini ndipo tichipeza maginito okhazikika, zomverera koyilo, ndi mapulagi mawaya zingwe.Koyilo yozindikira imatchedwanso coil ya chizindikiro, ndipo mutu wa maginito umalumikizidwa ndi maginito okhazikika.Mutu wa maginito umakhala moyang'anizana ndi rotor yamtundu wa dzino la diski yomwe imayikidwa pa crankshaft, ndipo mutu wa maginito umalumikizidwa ndi goli la maginito (maginito otsogolera mbale) kuti apange loop yowongolera maginito. mano opingasa, mano ang'onoang'ono 57 ndi dzino limodzi lalikulu lokhala motalikana mozungulira mozungulira.Dzino lalikulu likusowa chizindikiro chofotokozera, chofanana ndi silinda ya injini 1 kapena 4 compression TDC pamaso pa ngodya inayake.Ma radian a mano akuluakulu amafanana ndi mano awiri opingasa ndi mano atatu ang'onoang'ono.Chifukwa chozungulira chizindikiro chimazungulira ndi crankshaft, ndipo crankshaft imazungulira kamodzi (360)., chizindikiro chozungulira chimazunguliranso kamodzi (360)., kotero ngodya yozungulira ya crankshaft yomwe imakhala ndi mano otukuka ndi kuwonongeka kwa dzino pa circumference ya rotor ya chizindikiro ndi 360. , Kongolera ya crankshaft ya dzino lililonse ndi dzino laling'ono ndi 3. (58 x 3. 57 x + 3. = 345). )., Ngongole ya crankshaft yomwe ili ndi vuto lalikulu la dzino ndi 15. (2 x 3. + 3 x3. = 15)..2) kachipangizo kachipangizo kamene kamagwirira ntchito: pamene chojambulira cha crankshaft chokhala ndi crankshaft chizungulira, mfundo yogwira ntchito ya kachipangizo kameneka kamakhala ndi maginito, chizindikiro cha rotor iliyonse imatembenuza dzino lotukuka, koyilo yomverera imapanga emf nthawi ndi nthawi (mphamvu yamagetsi). pazipita komanso zochepa), koyilo imatulutsa siginecha yosinthira magetsi moyenerera.Chifukwa chozungulira chizindikiro chimaperekedwa ndi dzino lalikulu kuti apange chizindikiro cholozera, kotero dzino lalikulu likatembenuza mutu wa maginito, mphamvu yamagetsi imatenga nthawi yayitali, ndiko kuti, chizindikiro chotulutsa ndi chizindikiro chachikulu cha pulse, chomwe chimagwirizana ndi Angle inayake pamaso pa silinda 1 kapena silinda 4 psinjika TDC.Pamene gawo lamagetsi lamagetsi (ECU) limalandira chizindikiro chachikulu, limatha kudziwa kuti malo apamwamba a TDC a silinda 1 kapena 4 akubwera.Ponena za malo akubwera a TDC a silinda 1 kapena 4, ikuyenera kudziwa molingana ndi kuyika kwa siginecha kuchokera ku sensa ya camshaft.Popeza chozungulira chizindikiro chili ndi mano 58 otukukira, kachipangizo kachipangizo kamatulutsa ma siginecha 58 osinthira magetsi pakusintha kulikonse kwa chozungulira chamagetsi (kusintha kumodzi kwa crankshaft ya injini). Nthawi iliyonse pomwe chizindikirocho chimazungulira pa crankshaft ya injini, koyilo ya sensa imadyetsa 58 pulses mu electronic control unit (ECU).Chifukwa chake, pazizindikiro zilizonse za 58 zolandilidwa ndi sensa ya crankshaft, ECU ikudziwa kuti crankshaft ya injini yazungulira kamodzi.Ngati ECU ilandira zizindikiro za 116000 kuchokera ku crankshaft position sensor mkati mwa 1min, ECU ikhoza kuwerengera kuti liwiro la crankshaft n ndi 2000 (n = 116000 / 58 = 2000) r / mvula;Ngati ECU ilandila ma sign a 290,000 pamphindi kuchokera pa crankshaft position sensor, ECU imawerengera liwiro la 5000 (n= 29000/58 =5000)r/min.Mwanjira iyi, ECU imatha kuwerengera liwiro la kutembenuka kwa crankshaft kutengera kuchuluka kwa ma siginecha omwe amalandila pamphindi imodzi kuchokera pa sensa ya crankshaft.Kuthamanga kwa injini ndi chizindikiro cha katundu ndizo zizindikiro zofunika kwambiri komanso zofunikira zoyendetsera magetsi, ECU imatha kuwerengera magawo atatu olamulira malinga ndi zizindikiro ziwirizi: jekeseni woyambira (nthawi), kuyatsa koyambira (nthawi) ndi kuyatsa. Ngongola (kuyaka koyilo yoyambira pa nthawi) Jetta AT ndi GTx, Santana 2000GSi galimoto yamagetsi yotengera mtundu wa crankshaft malo sensor sensor rotor yopangidwa ndi siginecha ngati chizindikiro, kuwongolera kwa ECU nthawi ya jakisoni wamafuta ndi nthawi yoyatsira zimatengera chizindikiro chomwe chimapangidwa. ndi chizindikiro.ECu ikalandira chizindikiro chopangidwa ndi vuto lalikulu la dzino, imayang'anira nthawi yoyatsira, nthawi ya jekeseni wamafuta ndi nthawi yoyamba yosinthira koyilo yoyatsira (ie Angle conduction) molingana ndi chizindikiro chaching'ono cha dzino.3) Galimoto ya Toyota. TCCS maginito induction crankshaft ndi camshaft position sensorToyota Computer Control System (1FCCS) imagwiritsa ntchito maginito induction crankshaft ndi camshaft position sensor yosinthidwa kuchokera kwa wogawa, yopangidwa ndi kumtunda ndi kumunsi.Gawo lapamwamba limagawidwa kukhala chizindikiro chodziwika bwino cha crankshaft (chomwe ndi chizindikiro cha silinda ndi chizindikiro cha TDC, chotchedwa G signal) jenereta;Gawo lapansi limagawidwa mu liwiro la crankshaft ndi chizindikiro cha ngodya (chotchedwa Ne chizindikiro) jenereta.1) Makhalidwe a dongosolo la jenereta ya chizindikiro cha Ne: Ne jenereta ya chizindikiro imayikidwa pansi pa chizindikiro cha G, makamaka chopangidwa ndi No. 2 chizindikiro rotor, Ne sensor coil ndi mutu wa maginito.Chizindikiro cha rotor chimakhazikitsidwa pa shaft ya sensor, shaft ya sensor imayendetsedwa ndi camshaft yogawa gasi, kumtunda kwa shaft kumakhala ndi mutu wamoto, rotor ili ndi mano 24 a convex.The sensing koyilo ndi mutu maginito zokhazikika mu kachipangizo nyumba, ndi maginito mutu wokhazikika mu sensing coil.2) liwiro ndi Angle chizindikiro m'badwo mfundo ndi ndondomeko ulamuliro: pamene injini crankshaft, vavu camshaft sensa chizindikiro, ndiye kuyendetsa rotor. kasinthasintha, ndi ozungulira mano otuluka mano ndi mpweya kusiyana pakati pa maginito mutu kusintha mosinthana, kumva koyilo mu maginito flux kusintha alternately, ndiye mfundo ntchito ya kachipangizo maginito kupatsidwa zinthu zina kachipangizo limasonyeza kuti mu zomverera koyilo akhoza kupanga alternating inductive electromotive mphamvu.Chifukwa chozungulira chizindikiro chili ndi mano 24 opindika, koyilo ya sensa imatulutsa ma siginecha 24 pomwe rotor imazungulira kamodzi.Kusintha kulikonse kwa shaft sensor (360).Izi zikufanana ndi kusintha kuwiri kwa injini ya crankshaft (720)., kotero chizindikiro chosinthira (ie nthawi yazizindikiro) chimakhala chofanana ndi kuzungulira kwa 30. (720. Present 24 = 30)., ikufanana ndi kuzungulira kwa mutu wamoto 15. (30. Present 2 = 15)..ECU ikalandira zizindikiro za 24 kuchokera ku jenereta ya chizindikiro cha Ne, zikhoza kudziwika kuti crankshaft imazungulira kawiri ndipo mutu woyaka moto umazungulira kamodzi.Pulogalamu yamkati ya ECU imatha kuwerengera ndikuzindikira liwiro la injini ya crankshaft ndi liwiro lamutu woyatsira malinga ndi nthawi ya kuzungulira kwa siginecha iliyonse ya Ne.Kuti molondola kulamulira poyatsira pasadakhale Angle ndi jekeseni mafuta patsogolo Ngodya, ndi crankshaft ngodya wotanganidwa aliyense chizindikiro mkombero (30. Ngodya ndi ang'onoang'ono. Ndi yabwino kwambiri kukwaniritsa ntchito imeneyi ndi microcomputer, ndi pafupipafupi divider adzakhala chizindikiro aliyense Ne (crank Angle 30) Imagawidwa mofanana mu ma siginecha 30, ndipo chizindikiro chilichonse cha kugunda chimakhala chofanana ndi crank Angle 1. (30. Present 30 = 1) . Chizindikiro cha pulse chimagwirizana ndi Crankshaft Angle ya 0.5 (30. ÷60 = 0.5. malo a piston top dead center (TDC) ndikuzindikiritsa kuti silinda iti yomwe yatsala pang'ono kufika pamalo a TDC ndi ma siginecha ena.Choncho jenereta ya G signal imatchedwanso kuzindikira kwa silinda ndi jenereta yapakatikati yakufa kapena jenereta yolumikizira.Jenereta ya chizindikiro cha G imakhala ndi No.Sensor coil G1 ndi G2 imasiyanitsidwa ndi madigiri 180.Kukwera, koyilo ya G1 imapanga chizindikiro chofananira ndi injini yachisanu ndi chimodzi yamphamvu yopopera pamwamba pakufa pakati 10. Chizindikiro chopangidwa ndi G2 coil chikufanana ndi lO pamaso pa psinjika TDC ya silinda yoyamba ya injini.4) Chizindikiritso cha Cylinder ndi chizindikiro chapakati chakufa pamwamba. mfundo ya m'badwo ndi njira yoyendetsera: mfundo yogwirira ntchito ya jenereta ya G ndi yofanana ndi ya jenereta ya Ne.Pamene injini ya camshaft imayendetsa shaft ya sensor kuti itembenuke, flange ya G signal rotor (No. 1 signal rotor) imadutsa pamutu wa maginito wa coil yozindikira mosinthana, ndipo kusiyana kwa mpweya pakati pa rotor flange ndi maginito amasintha mosinthana. , ndipo chizindikiro cha mphamvu ya elekitiroti chosinthira chidzapangitsidwa mu coil yozindikira Gl ndi G2.Pamene mbali ya flange ya G1 rotor ili pafupi ndi mutu wa maginito wa coil G1, chizindikiro chabwino cha pulse chimapangidwa mu coil G1, yomwe imatchedwa chizindikiro cha G1, chifukwa kusiyana kwa mpweya pakati pa flange ndi mutu wa maginito kumachepa, maginito flux amawonjezeka ndipo maginito kusintha kusintha mlingo zabwino.Pamene mbali ya flange ya G signal rotor ili pafupi ndi coil G2, kusiyana kwa mpweya pakati pa flange ndi mutu wa maginito kumachepa ndipo maginito amawonjezeka.