Sensor ea boemo ba Camshaft ke sesebelisoa sa kutlo, seo hape se bitsoang synchronous signal sensor, ke sesebelisoa sa ho beha khetho ea cylinder, lets'oao la boemo ba camshaft ho ECU, ke lets'oao la taolo ea mollo.
1, ts'ebetso 'me u thaepe Camshaft Position Sensor (CPS), mosebetsi oa eona ke ho bokella lets'oao la Camshaft move Angle, le ho kenya yuniti ea taolo ea elektronike (ECU), e le ho fumana nako ea ho khantša le nako ea ente ea mafura. Camshaft Position Sensor (CPS) e boetse e tsejoa e le Cylinder Identification Sensor (CIS), e le ho khetholla ho crankshaft Position Sensor (CPS), li-sensor tsa boemo ba Camshaft hangata li emeloa ke CIS. Mosebetsi oa sensor ea boemo ba camshaft ke ho bokella lets'oao la boemo ba camshaft ea kabo ea khase le ho e kenya ho ECU, e le hore ECU e tsebe ho tseba setsi sa compression top bafu sa cylinder 1, e le ho etsa taolo e latellanang ea ente ea mafura, taolo ea nako ea ho tima le taolo ea deignition. Ntle le moo, lets'oao la boemo ba camshaft le boetse le sebelisoa ho tsebahatsa motsotso oa pele oa ho chesa nakong ea ho qala enjene. Hobane khamera ea boemo ba camshaft e ka tseba hore na ke piston efe ea cylinder e haufi le ho fihla TDC, e bitsoa cylinder recognition sensor.photoelectricStructural character ofPhotoelectric crankshaft le camshaft position sensor e hlahisoang ke khamphani ea Nissan e ntlafatsoa ho tloha ho distributor, haholo-holo ka disk signal (signal rotor), signal generator, disc wires signal, dissembling appli ea sensor. rotor ea sensor, e hatelloang holim'a shaft ea sensor. Sebakeng se haufi le moeli oa poleiti ea mats'oao ho etsa radian ea nako e ts'oanang ka hare le ka ntle ho li-circles tse peli tsa masoba a khanyang. Har'a tsona, selikalikoe sa ka ntle se entsoe ka likoti tse 360 tse hlakileng (likheo), 'me radian ea karohano ke 1. (Sekoti sa Transparent e ne e le 0.5. , lesoba la shading le na le 0.5.), le sebelisetsoang ho hlahisa ho potoloha ha crankshaft le pontšo ea lebelo; Ho na le masoba a 6 a hlakileng (li-rectangular L) ka har'a selikalikoe se ka hare, ka nako ea li-radians tse 60. , e sebelisetsoa ho hlahisa pontšo ea TDC ea cylinder e 'ngoe le e' ngoe, eo har'a eona ho nang le khutlonnetsepa e nang le moeli o pharaletseng hanyenyane bakeng sa ho hlahisa letšoao la TDC la cylinder 1. Jenereithara ea pontšo e tsitsitse mohahong oa sensor, o entsoeng ka Ne signal (lebelo le Angle signal) jenereithara, G signal (top dead center signal) generator le pontšo ea potoloho ea potoloho. Ne signal le G signal jenereithara li entsoe ka light emitting diode (LED) le photosensitive transistor (kapa photosensitive diode), LED tse peli tse tobaneng ka ho toba le tse peli tse photosensitive transistors ka ho latellana. Ha leseli transmittance lesoba ka letshwao disk rotates pakeng tsa LED le photosensitive transistor, leseli hlahisoang ke LED tla khantša photosensitive transistor, ka nako ena transistor photosensitive ke, mokelli oa eona dipholo tsa boemo bo tlaase (0.1 ~ O. 3V); Ha karolo ea shading ea disk signal e potoloha pakeng tsa LED le transistor photosensitive, leseli le hlahisoang ke THE LED ha le khone ho khantša transistor ea photosensitive, ka nako ena transistor ea photosensitive e khaotsoe, mokelli oa eona o hlahisa boemo bo phahameng (4.8 ~ 5.2V) . photosensitive transistor mokelli o tla hlahisa maemo a holimo le a tlase ka tsela e fapaneng. Ha sensor axis e nang le crankshaft le camshaft e potoloha, sekoti se khanyang holim'a poleiti le karolo ea shading pakeng tsa LED le transistor ea photosensitive, lebone la lebone la LED le khanyang le phello ea shading le tla fetola mahlaseli ho jenereithara ea li-photosensitive transistor, lets'oao la sensor le hlahisoa le boemo ba camshaft le letšoao la camshaft. crankshaft e potoloha habeli, sensor shaft e potoloha lets'oao hanngoe, kahoo sensor ea G e tla hlahisa li-pulse tse tšeletseng. Sensor ea ne e tla hlahisa matšoao a 360 a pulse. Hobane sebaka sa mahlaseli sa lesoba le fetisang leseli la letšoao la G ke 60. Le 120 ka ho potoloha ha crankshaft. E hlahisa letšoao la tšusumetso, kahoo letšoao la G hangata le bitsoa 120. Letšoao. Tiisetso ea ho kenya moralo 120. Letšoao la 70 pele ho TDC. (BTDC70. , 'me pontšo e hlahisoang ke lesoba le bonaletsang le bophara bo hanyenyane bo bolelele ba khutlonnetsepa e lumellana le 70 pele setsi sa holimo se shoeleng sa silindara ea enjene 1. E le hore ECU e ka laola ente e tsoelang pele Angle le ho hotetsa pele Angle. Hobane Ne signal transmittance leso interval interval radian ke 1. (Transparent0 hole.5 hole.5) , kahoo potolohong e 'ngoe le e' ngoe ea pulse, boemo bo phahameng le tlaleho ea boemo bo tlaase bakeng sa 1 ho potoloha ha Crankshaft, lipontšo tsa 360 li bontša ho potoloha ha crankshaft 720. Ho potoloha ka 'ngoe ea crankshaft ke 120 e sebelisa phello ea holo ho hlahisa pontšo ea boemo ka amplitude e tsitsitseng, joalokaha ho bontšoa ho Setšoantšo sa 1. Ea morao-rao e sebelisa molao-motheo oa ho kenngoa ha makenete ho hlahisa matšoao a boemo boo amplitude ea eona e fapaneng le lebelo ho tloha ho li-millivolts tse makholo ho ea ho li-volts tse makholo, 'me amplitude e fapana haholo. Lekhalo la moea pakeng tsa magnet e tsitsitseng N pole le rotor, leino la rotor salient, lekhalo la moea pakeng tsa leino la rotor salient le hlooho ea makenete ea stator, hlooho ea makenete, poleiti ea magnetic guide le magnet e sa feleng ea S pole. matla a alternating electromotive a tla susumelletseha ho coil ea kutlo.Ha rotor ea pontšo e potoloha ho ea ka nako, lekhalo la moea pakeng tsa meno a rotor convex le hlooho ea magnetic e fokotseha, ho tsilatsila ha potoloho ea magnetic ho fokotseha, matla a khoheli φ a eketseha, sekhahla sa phetoho se eketseha (dφ / dt> 0), 'me motlakase o kentsoeng moeli oa hlooho ea makenete, matla a khoheli φ a eketseha haholo, sekhahla sa ho fetoha ha sekhahla ke se seholo ka ho fetisisa [D φ / dt = (dφ / dt) Max], 'me matla a electromotive a susumelitsoeng ke E ke a phahameng ka ho fetisisa (E = Emax Ka mor'a hore rotor e pota-potile boemo ba ntlha ea B, le hoja matla a khoheli φ a ntse a eketseha, empa ho fokotseha ha matla a motlakase ho fokotseha. rotor e potoloha ho ea bohareng ba leino la convex le mohala o bohareng oa hlooho ea khoheli, le hoja lekhalo la moea pakeng tsa leino la rotor convex le hlooho ea makenete ke e nyenyane ka ho fetisisa, matla a khoheli a matla a khoheli ke a manyenyane ka ho fetisisa, 'me matla a khoheli φ ke a maholo ka ho fetisisa, empa hobane matla a khoheli a ke ke a tsoela pele ho eketseha, tekanyo ea phetoho ea magnetic flux ho zero e ntse e tsoela pele, kahoo matla a motlakase a ntse a tsoela pele ho ea ho zero. ho latela tataiso ea oache 'me leino la convex le siea hlooho ea makenete, lekhalo la moea le pakeng tsa leino la khoho le hlooho ea makenete lea eketseha, ho tsilatsila ha potoloho ea makenete hoa eketseha, 'me matla a khoheli a fokotseha (dφ/dt< 0), kahoo matla a matla a motlakase a bakoang ke E ke a fosahetseng Ha leino la convex le fetohela moeling oa ho tloha hloohong ea matla a khoheli, ho fokotseha ho hoholo ha matla a khoheli ho fihla pheletsong ea matla a khoheli. φ / df = - (dφ / dt) Max], 'me matla a electromotive a susumelitsoeng ke E le ona a fihla boemong bo bobe (E = -emax) .Ka hona ho ka bonoa hore nako le nako ha rotor ea pontšo e fetola leino la convex, coil ea sensor e tla hlahisa matla a electromotive a nako le nako, ke hore, matla a electromotive a bonahala a le matla a maholo a motlakase, boleng bo lekanang le pontšo ea coil Monyetla oa sensor ea matla a khoheli ke hore ha e hloke phepelo ea matla a kantle, makenete e sa feleng e bapala karolo ea ho fetolela matla a motlakase hore e be matla a motlakase, mme matla a eona a khoheli a ke ke a lahleha Ha lebelo la enjene le fetoha, lebelo la ho potoloha ha meno a rotor le tla fetoha, 'me sekhahla sa phetoho se ka sehloohong se tla fetoha. Meno a convex le hlooho ea makenete e ama ka kotloloho ho hanyetsa matla a khoheli le phallo ea motlakase ea coil ea sensor, lekhalo la moea lipakeng tsa meno a rotor convex le hlooho ea makenete e ke keng ea fetoloa ka thato ha e sebelisoa, e tlameha ho fetoloa ho latela lipehelo. crankshaft position sensor: The magnetic induction crankshaft position sensor ea Jetta AT, GTX le Santana 2000GSi e kentsoe holim'a cylinder block haufi le clutch e ka har'a crankcase, eo haholo-holo e entsoeng ka jenereithara ea matšoao le rotor ea matšoao. Khoele e utloang e boetse e bitsoa khoele ea mats'oao, 'me hlooho ea makenete e hoketsoe ho makenete e sa feleng. Hlooho ea makenete e fapane ka ho toba le mofuta oa rotor ea mofuta oa leino disk e kentsoeng holim'a crankshaft, 'me hlooho ea makenete e hokahane le joko ea makenete (poleiti ea tataiso ea makenete) ho theha loop ea tataiso ea makenete.Rotor ea lets'oao ke ea mofuta oa disc ea meno, e nang le meno a 58 a convex, meno a manyane a 57 le leino le le leng le leholo le arohaneng ka ho lekana ho potoloha. Leino le leholo le haelloa ke lets'oao la tlhahiso, le tsamaellanang le silindara ea 1 kapa cylinder 4 compression TDC pele ho Angle e itseng. Li-radians tsa meno a maholo li lekana le meno a mabeli a li-convex le meno a mararo a manyenyane. Hobane rotor ea lets'oao e potoloha le crankshaft, 'me crankshaft e potoloha hang(360). , rotor ea pontšo e boetse e potoloha hang (360). , kahoo Leqhubu la ho potoloha ha crankshaft Angle e nang le meno a khohlopo le mefokolo ea leino selika-likoe sa rotor ea lets'oao ke 360. , The angle rotation ea crankshaft ea leino le leng le le leng la convex le leino le lenyane ke 3. (58 x 3. 57 x + 3. = 345). , Leqhubu la crankshaft le bakiloeng ke bothata bo boholo ba leino ke 15. (2 x 3. + 3 x3. = 15). .2) boemo ba ho sebetsa ha sensor ea boemo ba crankshaft: ha sensor ea boemo ba crankshaft e nang le crankshaft e potoloha, molao-motheo oa ts'ebetso oa sensor ea induction ea makenete, lets'oao la rotor e 'ngoe le e' ngoe e fetotse leino la convex, coil e utloang e tla hlahisa emf e fetohang nako le nako (matla a motlakase ka bongata le bonyane), coil e ntša lets'oao la motlakase o fapaneng ho latela. Hobane pontšo ea rotor e fanoa ka leino le leholo ho hlahisa letšoao la litšupiso, kahoo ha leino le leholo le fetola hlooho ea makenete, motlakase oa pontšo o nka nako e telele, ke hore, lets'oao la phallo ke lets'oao le leholo la pulse, le lumellanang le Angle e itseng pele cylinder 1 kapa cylinder 4 compression TDC. Ha yuniti ea taolo ea elektronike (ECU) e fumana pontšo e pharaletseng ea pulse, e ka tseba hore boemo bo phahameng ba TDC ba cylinder 1 kapa 4 bo tla. Ha e le boemo ba TDC bo tlang ba cylinder 1 kapa 4, e hloka ho tseba ho latela tlhahiso ea lets'oao ho tsoa ho sensor ea boemo ba camshaft. Kaha rotor ea pontšo e na le meno a 58 a convex, coil ea sensor e tla hlahisa matšoao a 58 a feto-fetohang bakeng sa phetoho e 'ngoe le e' ngoe ea rotor ea pontšo (phetoho e le 'ngoe ea crankshaft ea enjene) .Nako le nako ha pontšo ea rotor e potoloha ka har'a crankshaft ea enjene, coil ea sensor e fepa 58 pulses ka har'a lisebelisoa tsa elektronike (ECU). Kahoo, bakeng sa matšoao a mang le a mang a 58 a amoheloang ke sensor ea boemo ba crankshaft, ECU e tseba hore crankshaft ea enjene e bilika hang. Haeba ECU e amohela matšoao a 116000 ho tsoa ho sensor ea boemo ba crankshaft ka hare ho 1min, ECU e ka bala hore lebelo la crankshaft n ke 2000 (n=116000/58=2000)r/pula; Haeba ECU e amohela matšoao a 290,000 ka motsotso ho tsoa ho sensor ea boemo ba crankshaft, ECU e lekanya lebelo la crank la 5000(n= 29000/58 =5000)r/min. Ka tsela ena, ECU e ka bala lebelo la ho potoloha ha crankshaft ho latela palo ea matšoao a pulse a amoheloang ka motsotso ho tsoa ho sensor ea boemo ba crankshaft. Letšoao la lebelo la enjene le letšoao la mojaro ke matšoao a bohlokoa ka ho fetesisa le a mantlha a taolo ea sistimi ea taolo ea elektroniki, ECU e ka bala likarolo tse tharo tsa taolo ea mantlha ho latela matšoao ana a mabeli: ente ea mantlha pele Angle (nako), pele ho hotetsa pele Angle (nako) le Angle conduction ea mollo (coil ea mantlha ea hona joale ka nako) . lets'oao la litšupiso, taolo ea ECU ea nako ea ente ea peterole le nako ea ho chesa e ipapisitse le lets'oao le hlahisoang ke lets'oao. Ha ECu e amohela pontšo e hlahisoang ke bothata bo boholo ba leino, e laola nako ea ho khantša, nako ea ho kenya mafura le nako e ka sehloohong ea hona joale ea ho fetola mochine oa ho tima (ke hore, Angle ea conduction) ho ea ka lets'oao le lenyenyane la leino. moabi, e nang le likarolo tse ka holimo le tse tlase. Karolo e ka holimo e arotsoe ka letšoao la boitsebiso ba boemo ba crankshaft (e leng cylinder identification le TDC signal, e tsejoang e le G signal) jenereithara; Karolo e ka tlaase e arotsoe ka lebelo la crankshaft le pontšo ea sekhutlo (e bitsoang Ne signal) jenereithara.1) Litšobotsi tsa sebopeho sa jenereithara ea pontšo ea Ne: Jenereithara ea signal ea Ne e kenngoa ka tlase ho G signal generator, haholo-holo e entsoeng ka No. 2 signal rotor, Ne sensor coil le magnetic head. Rotor ea lets'oao e ts'oaretsoe holim'a mochini oa sensor, mochini oa sensor o khannoa ke camshaft ea kabo ea khase, pheletsong e kaholimo ea shaft e na le hlooho ea mollo, rotor e na le meno a 24 a convex. The kutlo coil le makenete hlooho li e tsitsitseng ka kutlo matlo, 'me hlooho ea makenete e tsitsitseng ka coil.2) lebelo le Angle pontšo moloko oa batho molao-motheo le taolo tshebetso: ha enjene crankshaft, valve camshaft kutlo matshwao a medumo, ka nako eo khanna rotor rotation, le rotor protruding meno le lekhalo la moea pakeng tsa matla a khoheli a fetola hlooho ka tsela e fapaneng, ho fetola matla a khoheli, ho fetola matla a khoheli, ho fetola matla a khoheli. kutlo e bontša hore ka kutlo coil ka hlahisa alternating inductive electromotive matla. Hobane rotor ea lets'oao e na le meno a 24 a convex, coil ea sensor e tla hlahisa matšoao a 24 a chenchana ha rotor e potoloha hang. Phetoho e 'ngoe le e' ngoe ea "sensor shaft" (360). Sena se lekana le liphetohelo tse peli tsa crankshaft ea enjene (720). , kahoo lets'oao le fapanyetsanang (ke hore, nako ea pontšo) le lekana le crank rotation ea 30. (720. Hona joale 24 = 30). , e lekana le ho potoloha ha hlooho ea mollo 15. (30. Hona joale 2 = 15). . Ha ECU e amohela matšoao a 24 ho tswa ho jenereithara ea Ne, ho ka tsejoa hore crankshaft e potoloha habeli 'me hlooho ea mollo e potoloha hang. Lenaneo la ka hare la ECU le ka bala le ho lekanya lebelo la enjene ea crankshaft le lebelo la hlooho ea mollo ho latela nako ea potoloho e 'ngoe le e' ngoe ea Ne. E le ho laola ka nepo ho khantša pele Angle le peterole ente pele Angle, crankshaft Angle lula mong le e mong potoloho ea pontšo (30. Likhutlong tse nyenyane. Ho loketse haholo ho phetha mosebetsi ona ka microcomputer, 'me frequency divider tla bontša mong le e mong Ne (crank Angle 30) E arotsoe ka ho lekana ka 30 pulsent pontšo, 'me e 'ngoe le e 'ngoe e arotsoe ka pontšo ea pulse 30, 'me e mong le e mong o arotsoe ka matšoao a 30. 1. (30. Hona joale 30 = 1). Haeba letšoao le leng le le leng la Ne le arotsoe ka ho lekana ka matšoao a 60, pontšo e 'ngoe le e' ngoe ea pulse e lumellana le Angle ea crankshaft ea 0.5. ea piston top dead center (TDC) 'me u khetholle hore na ke cylinder efe e haufi le ho fihla boemong ba TDC le matšoao a mang a litšupiso li-coil G1 le G2 li arohanngoa ke likhato tse 180, G1 coil e hlahisa letšoao le lumellanang le enjene ea botšelela silindara compression top bafu setsing 10. Letšoao le hlahisoang ke G2 coil e lumellana le lO pele compression TDC ea pele silindara ea enjene. jenereithara. Ha camshaft ea enjene e khanna sensor shaft ho potoloha, flange ea G signal rotor (No. 1 signal rotor) e feta ka hlooho ea makenete ea coil e utloang ka tsela e fapaneng, 'me lekhalo la moea pakeng tsa rotor flange le hlooho ea makenete le fetoha ka tsela e fapaneng,' me pontšo ea matla a motlakase a fetohang e tla kenngoa ho coil le G2il. Ha karolo ea flange ea G signal rotor e le haufi le hlooho ea khoheli ea coil G1, pontšo e ntle ea pulse e hlahisoa ka ho utloa coil G1, e bitsoang letšoao la G1, hobane lekhalo la moea pakeng tsa flange le hlooho ea makenete le fokotseha, matla a khoheli a eketseha 'me sekhahla sa phetoho ea magnetic flux se nepahetse. Ha karolo ea flange ea G signal rotor e le haufi le coil e utloang G2, lekhalo la moea pakeng tsa flange le hlooho ea makenete lea fokotseha 'me matla a khoheli a eketseha.
