SAIC MAXUS V80 Pulagi Yotenthetsera Mtundu Woyamba - National zisanu 0281002667

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 Camshaft Position Sensor (CPS), ntchito yake ndi kusonkhanitsa Camshaft yosuntha Angle chizindikiro, ndi input electronic control unit (ECU), kuti adziwe 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 yogawa mpweya ndi athandizira kuti ECU, kuti ECU kudziwa psinjika pamwamba akufa pakati yamphamvu yamphamvu 1, kuti achite sequential jekeseni mafuta, kulamulira nthawi poyatsira ndi kulamulira deignition. Kuphatikiza apo, chizindikiro cha camshaft chimagwiritsidwanso ntchito kuzindikira mphindi yoyamba yoyatsira injini poyambira. Chifukwa camshaft udindo sensa akhoza kudziwa yamphamvu pisitoni watsala pang'ono kufika TDC, amatchedwa yamphamvu kuzindikira sensa.photoelectricStructural makhalidwe a Photoelectric crankshaft ndi camshaft udindo kachipangizo opangidwa ndi kampani Nissan ndi bwino kuchokera distributor, makamaka ndi chizindikiro litayamba (signal rotor), mawaya chizindikiro, mawaya mawaya, kachipangizo kachipangizo kachipangizo kachipangizo ndi chizindikiro nyumba. rotor ya sensor, yomwe imakanikizidwa pa shaft ya sensor. 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 owonekera 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 ndi m'mphepete mwake motalikirapo 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 pakati pa chizindikiro) jenereta ndi makina opangira magetsi. Ne ndi jenereta ya siginecha ya G zimapangidwa ndi diode yotulutsa kuwala (LED) ndi transistor ya photosensitive (kapena photosensitive diode), ma LED awiri akuyang'anizana ndi ma transistors awiri a photosensitive motsatana. 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 limatulutsa ndi LED sangathe kuunikira photosensitive transistor, pa nthawi ino transistor photosensitive kudulidwa, okhometsa ake linanena bungwe mkulu mlingo (4.8 ~ 5.2V). photosensitive transistor chojambulira chidzatulutsa milingo yayikulu komanso yotsika. Pamene kachipangizo kachipangizo ndi crankshaft ndi camshaft azungulira ndi, chizindikiro dzenje kuwala pa mbale ndi shading gawo pakati pa LED ndi photosensitive transistor kutembenukira, LED kuwala chizindikiro mbale ya pervious kuti kuwala ndi shading zotsatira adzakhala zina walitsa kwa chizindikiro jenereta wa photosensitive transistor, kachipangizo chizindikiro amapangidwa ndi camshaft chizindikiro malo ndi crankshaft chizindikiro. crankshaft imazungulira kawiri, shaft ya sensor imazungulira chizindikiro kamodzi, kotero sensa ya G imapanga ma pulses 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, kotero 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 makona anayi m'lifupi limafanana 70 pamaso pamwamba akufa pakati yamphamvu injini 1. Kuti ECU akhoza kulamulira jekeseni pasadakhale Angle ndi poyatsira pasadakhale ngodya. Chifukwa Ne chizindikiro transmittance dzenje interval radian ndi 1. (Transparent dzenje.5 anawerengera.5). , kotero pamtundu uliwonse wa pulse, mlingo wapamwamba ndi akaunti yotsika ya 1 motsatana, zizindikiro za 360 zimasonyeza kutembenuka kwa crankshaft 720. Kuzungulira kulikonse kwa crankshaft ndi 120 amagwiritsa ntchito mphamvu ya holo kuti apange chizindikiro cha malo ndi matalikidwe okhazikika, monga momwe tawonetsera mu Chithunzi 1. Chotsatiracho chimagwiritsa ntchito mfundo ya maginito kuti apange zizindikiro za malo omwe matalikidwe ake amasiyanasiyana ndi liwiro la mamililiti mazana angapo mpaka mazana a volts, ndipo matalikidwe amasiyana kwambiri. kusiyana kwa mpweya pakati pa maginito okhazikika a N pole ndi rotor, dzino lozungulira la rotor, kusiyana kwa mpweya pakati pa dzino la rotor ndi mutu wa maginito, mutu wa maginito, mbale ya maginito ndi maginito okhazikika a S pole. kusinthasintha mphamvu ya electromotive kudzapangitsidwa mu coil yozindikira.Pamene chizindikiro cha rotor chikuzungulira mozungulira, kusiyana kwa mpweya pakati pa mano a rotor convex ndi mutu wa maginito kumachepa, kukana kwa maginito kumachepa, maginito a maginito φ amawonjezeka, kusintha kwa kusintha kwachangu kumawonjezeka (dφ / dt> 0), ndi kuchititsa kuti electromotive kutsekeka kwa mano ozungulira m'mphepete mwa mutu wa maginito, maginito a maginito φ amawonjezeka kwambiri, kusintha kwa kusintha kwasintha kwakukulu kwambiri [D φ / dt = (dφ / dt) Max], ndipo mphamvu ya electromotive yotchedwa E ndipamwamba kwambiri (E = Emax) Pambuyo pozungulira pozungulira malo a mfundo B, ngakhale kuti maginito a maginito φ akuwonjezekabe, koma kuchepa kwa mphamvu ya electromotive kumachepetsa. rotor imazungulira pakatikati pa dzino la convex 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 mphamvu ya maginito φ ndiyo yaikulu kwambiri, koma chifukwa maginito a maginito sangathe kupitiriza kuwonjezeka, mlingo wa kusintha kwa maginito kusuntha mu zero ndi zero, kotero mphamvu ya maginito ikupitirizabe kupitirira zero. motsatira njira yowongoka ndipo dzino lopindika limasiya mutu wa maginito, kusiyana kwa mpweya pakati pa dzino lopindika ndi mutu wa maginito kumawonjezeka, kusafuna kwa maginito kumawonjezeka, ndipo kutsika kwa maginito kumachepa (dφ/dt< 0), kotero kuti mphamvu ya electrodynamic yochititsa E imakhala yolakwika [Zolakwika] Pamene dzino lotukuka limatembenukira kumphepete mwa kusiya mutu wa maginito, kutsika kwa maginito kumasintha, kutsika kwa maginito kumasintha. φ / df = - (dφ / dt) Max], ndipo mphamvu ya electromotive yomwe inachititsa kuti E ifikenso pamtunda woipa (E = -emax) .Chotero zikhoza kuwoneka kuti nthawi iliyonse pamene chizindikiro cha rotor chitembenuza dzino lowoneka bwino, coil ya sensa idzatulutsa mphamvu ya electromotive ya periodic, ndiko kuti, mphamvu ya electromotive ikuwoneka ngati chizindikiro chofanana ndi chizindikiro cha coil Ubwino wa maginito induction sensor ndikuti sichifunikira mphamvu yakunja, maginito okhazikika amathandizira kusintha mphamvu zamakina kukhala mphamvu yamagetsi, ndipo mphamvu yake yamaginito ikasintha, liwiro lozungulira la mano ozungulira a rotor lidzasintha, komanso kusinthasintha kwapakatikati kumasinthanso. Mano opindika ndi mutu wa maginito amakhudza mwachindunji kukana kwa maginito ndi mphamvu yamagetsi ya koyilo ya sensa, kusiyana kwa mpweya pakati pa mano a rotor convex ndi mutu wa maginito sungathe kusinthidwa pakufuna kwawo ngati kusiyana kwa mpweya kumasintha, kumayenera kusinthidwa malinga ndi zomwe zimaperekedwa. crankshaft position sensor: Magetsi olowetsa crankshaft position sensor ya Jetta AT, GTX ndi Santana 2000GSi imayikidwa pa cylinder block pafupi ndi clutch mu crankcase, yomwe imapangidwa makamaka ndi jenereta yamagetsi ndi chizindikiro cha rotor. Koyilo yozindikira imatchedwanso coil ya chizindikiro, ndipo mutu wa maginito umalumikizidwa ku maginito okhazikika. Mutu wa maginito umagwirizana mwachindunji ndi rotor ya mtundu wa dzino la diski yomwe imayikidwa pa crankshaft, ndipo mutu wa maginito umagwirizanitsidwa ndi goli la maginito (maginito kalozera mbale) kupanga maginito kalozera loop.The rotor chizindikiro ndi toothed chimbale mtundu, ndi 58 otukukira mano mano, 57 mano ang'onoang'ono ndi dzino limodzi lalikulu wogawana 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 kuti ngodya yozungulira ya crankshaft yomwe imakhala ndi mano a convex ndi zilema za dzino pa circumference ya rotor ya chizindikiro ndi 360. , Crankshaft rotation Engle ya dzino lililonse lotukuka 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) crankshaft udindo sensa ntchito chikhalidwe: pamene crankshaft udindo kachipangizo ndi crankshaft atembenuza, mfundo ntchito ya kachipangizo maginito induction sensa, chizindikiro cha rotor aliyense anatembenuza dzino otukukira pansi, koyilo zomverera adzapanga periodic alternating emf (electromotive mphamvu pazipita ndi osachepera), koyilo linanena bungwe alternating voteji siginecha molingana. Chifukwa chozungulira chizindikiro amaperekedwa ndi dzino lalikulu kupanga chizindikiro chizindikiro, kotero pamene dzino lalikulu atembenuza mutu maginito, ndi voteji chizindikiro amatenga nthawi yaitali, ndiye linanena bungwe chizindikiro ndi lonse zimachitika chizindikiro, lomwe limafanana ndi ngodya zina pamaso yamphamvu 1 kapena yamphamvu 4 psinjika TDC. Pamene gulu lamagetsi lamagetsi (ECU) lilandira chizindikiro cha pulse lalikulu, limatha kudziwa kuti malo apamwamba a TDC a silinda 1 kapena 4 akubwera. Ponena za malo akubwera a TDC a silinda 1 kapena 4, imayenera kudziwa molingana ndi kuyika kwa siginecha kuchokera ku sensa ya camshaft. Popeza rotor chizindikiro ali 58 otukukira mano mano, kachipangizo koyilo kupanga 58 alternating voteji siginecha kwa kusintha kulikonse kwa rotor chizindikiro (kusinthika kumodzi kwa injini crankshaft) .Nthawi iliyonse chizindikiro chozungulira chimayenda motsatira crankshaft injini, koyilo ya sensa imadyetsa 58 pulses mu gawo lamagetsi lamagetsi (ECU). Chifukwa chake, pazizindikiro zilizonse za 58 zolandilidwa ndi sensa ya crankshaft, ECU imadziwa 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 ndizofunikira kwambiri komanso zizindikiro zoyamba kulamulira zamagetsi, ECU ikhoza kuwerengera magawo atatu olamulira malinga ndi zizindikiro ziwirizi: jekeseni woyambira pa ngodya (nthawi), kuyatsa koyambirira Angle (nthawi) ndi kuyatsa kolowera (nthawi yoyatsira koyilo yoyamba pa nthawi) . chizindikiro cholozera, kuwongolera kwa ECU kwa nthawi ya jekeseni wamafuta ndi nthawi yoyaka zimatengera chizindikiro chopangidwa ndi chizindikirocho. ECu ikalandira chizindikiro chopangidwa ndi vuto lalikulu la dzino, imayang'anira nthawi yoyatsira, nthawi yobaya mafuta komanso nthawi yoyamba yosinthira koyilo yoyatsira (ie Angle conduction) molingana ndi chizindikiro chaching'ono cha dzino. distributor, wopangidwa 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 G generator generator, makamaka yopangidwa ndi No. 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 tcheru koyilo ndi mutu maginito zokhazikika mu kachipangizo nyumba, ndi maginito mutu wokhazikika mu kuzindikira coil.2) liwiro ndi Angle chizindikiro m'badwo mfundo ndi ndondomeko kulamulira: pamene injini crankshaft, valavu camshaft kachipangizo chizindikiro, ndiye kuyendetsa kasinthasintha kasinthasintha, ndi ozungulira mano ndi mpweya kusiyana pakati pa maginito mutu kusintha mosinthana, tcheru kusintha maginito, kusintha kwa maginito, kusintha maginito, kusintha kwa maginito. Sensa ikuwonetsa kuti mu coil yomverera imatha kupanga mphamvu yosinthira ma electromotive. 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 ndizofanana ndi kusintha kuwiri kwa injini ya crankshaft (720). , kotero chizindikiro chosinthira (ie nthawi ya chizindikiro) ndi yofanana ndi kuzungulira kwa 30. (720. Present 24 = 30). , ikufanana ndi kuzungulira kwa mutu wamoto 15. (30. Present 2 = 15). . Pamene ECU ilandira 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 mkombero chizindikiro (30. Ngodya ndi ang'onoang'ono. Ndi yabwino kwambiri kukwaniritsa ntchito imeneyi ndi microcomputer, ndi pafupipafupi divider adzakhala chizindikiro aliyense Ne (crank Angle 30) Iwo mofanana anawagawa mu 30 pulselent chizindikiro, ndipo aliyense pulsement chizindikiro ndi pulselent A pulsent, ndi chizindikiro cha pulsent ndi crank pulse. 1. (30. Present 30 = 1). Ngati chizindikiro chilichonse cha Ne chikugawidwa mofanana mu zizindikiro za 60, chizindikiro chilichonse cha pulse chimagwirizana ndi crankshaft Angle ya 0.5. ya piston top dead center (TDC) ndi kuzindikiritsa kuti silinda yomwe ili pafupi kufika pa malo a TDC ndi zizindikiro zina zowonetserako Choncho G generator imatchedwanso kuzindikira kwa cylinder ndi jenereta ya chizindikiro chapamwamba chakufa kapena jenereta ya chizindikiro cha G imakhala ndi No koyilo G1 ndi G2 amasiyanitsidwa ndi madigiri 180 Wokwera, ndi G1 koyilo umabala chizindikiro lolingana injini yachisanu ndi silinda psinjika pamwamba akufa pakati 10. The chizindikiro kwaiye G2 koyilo limafanana lO pamaso psinjika TDC wa yamphamvu woyamba wa injini. jenereta. Pamene injini camshaft amayendetsa shaft sensa kuti azungulire, ndi flange wa G chizindikiro rotor (No. 1 chizindikiro rotor) amadutsa maginito mutu wa koyilo zomverera alternately, ndi mpweya kusiyana pakati pa rotor flange ndi maginito mutu kusintha alternating, ndi alternating electromotive mphamvu chizindikiro adzakhala ananyengerera mu sensing coil G2il. Pamene mbali ya flange ya G signal rotor ili pafupi ndi mutu wa maginito wa coil G1, chizindikiro chabwino cha pulse chimapangidwa pozindikira coil G1, yomwe imatchedwa chizindikiro cha G1, chifukwa kusiyana kwa mpweya pakati pa flange ndi mutu wa maginito kumachepa, kusinthasintha kwa maginito kumawonjezeka ndi kusintha kwa maginito kusintha kwabwino. 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.