Mosebetsi oa sensor ea crankshaft ea koloi ke ofe?
Sensor ea crankshaft (e tsejoang hape e le sensor ea lebelo la enjene) ke sensor ea mantlha ea sistimi ea taolo ea elektroniki ea enjene. E sebelisoa haholo ho lemoha boemo ba crankshaft, lets'oao le bohareng le shoeleng la piston, le lebelo la enjene, 'me e fetisetsa matšoao ho ECU ho laola ho hotetsa le nako ea ho kenngoa ha mafura. Sensor ena hangata e kenngoa pheletsong e ka pele ea crankshaft, pheletsong e ka pele ea camshaft, flywheel, kapa mofani oa thepa. E hloka ho sebetsa ka tšebelisano-'moho le sensor ea boemo ba camshaft.
Ho ya ka molao-motheo wa yona wa tshebetso, e ka arolwa ka mefuta e meraro: mofuta wa pulse ya makenete, mofuta wa Hall, le mofuta wa photoelectric: Mofuta wa pulse ya makenete o hlahisa letshwao la leqhubu la sine ka ho baka phetoho ya matla a makenete ka disk ya letshwao. Mofuta wa Hall o ntsha letshwao la leqhubu la sekwere ka ho sebedisa lehare la trigger. Mofuta wa photoelectric o hlahisa motlakase wa pulse ka ho sebedisa phetiso ya lesoba la lesedi. Mofuta wa Hall o hloka phepelo ya motlakase ya kantle ya 5V, mme mofuta wa photoelectric o kotsing ya ho senyeha ha ho nepahala ha letshwao ka lebaka la tshilafatso ya oli. Diphoso tse tlwaelehileng di kenyeletsa tshitiso ya letshwao e bakwang ke ho tsofala ha terata, le bothata ba ho qala ka lebaka la sensor e ditshila. Maemo a sa tlwaelehang a ka baka lesedi la phoso ya enjene mme a baka matla a sa lekaneng kapa ho hloleha ho qala. Tsela ya theknoloji ya sejwalejwale e bontsha mokgwa wa ho iphetola ha dintho ho tloha matshwaong a analog ho ya ho ho lemohuwa ha dijithale.
Molao-motheo oa ho lemoha oa sensor ea boemo ba crankshaft ea mofuta oa magnetic pulse
Sensor ea boemo ba crankshaft ea mofuta oa magnetic pulse ea Nissan Company
Sensor ena ea boemo ba crankshaft e kentsoe ka mor'a pulley pheletsong e ka pele ea crankshaft. Karolong e ka morao ea pulley, ho na le disc e tšesaane e chitja e nang le meno a masesaane (a sebelisetsoang ho hlahisa matšoao, a bitsoang disc ea lets'oao), e kenngoeng hammoho le pulley ea crankshaft holim'a crankshaft 'me e potoloha le crankshaft. Moeling o ka ntle oa disc ea lets'oao, ho na le leino ka 4° ka 'ngoe ho potoloha. Ho na le meno a 90 ka kakaretso, 'me liprotrusion tse 3 li hlophisitsoe ho 120° ka 'ngoe, e leng kakaretso ea 3. Lebokose la sensor le kentsoeng moeling oa disc ea lets'oao ke jenereithara ea lets'oao le hlahisang lets'oao la motlakase. Jenereithara ea lets'oao e na le lihlooho tse 3 tsa makenete tse pota-potileng makenete ea kamehla ho coil ea induction, moo hlooho ea makenete ② e hlahisang lets'oao la 120°, 'me lihlooho tsa makenete ① le ③ ka kopanelo li hlahisa lets'oao la sekhutlo sa crankshaft la 1°. Hlooho ea makenete ② e shebile ho hlahella ha 120° ea diski ea lets'oao, hlooho ea makenete ① le ③ li shebile lesale la gear la diski ea lets'oao, ka phapang ea mohato oa ho kenngoa ha sekhutlo sa crankshaft. Jenereithara ea lets'oao e na le lipotoloho tsa ho holisa le ho bopa lets'oao, 'me sehokelo sa kantle sa masoba a mane, moo lesoba "1" e leng mola oa tlhahiso ea lets'oao la 120°, lesoba "2" e leng mohala oa motlakase bakeng sa potoloho ea ho holisa le ho bopa lets'oao, lesoba "3" e le mola oa tlhahiso ea lets'oao la 1°, 'me lesoba "4" e le mola oa fatše. Ka sehokelo sena, lets'oao le hlahisoang ke sensor ea boemo ba crankshaft le fetisetsoa ho ECU.
Ha enjene e potoloha, meno le dipotoloho tsa disk ya letshwao di baka phetoho tshimong ya makenete e fetang ka hara coil ya induction, ka hona e hlahisa matla a feto-fetohang a electromotive coil ya induction. Kamora ho sefa le ho bopa, e fetoha letshwao la pulse. Kamora ho potoloha ha enjene hanngoe, hlooho ya makenete ② e hlahisa matshwao a pulse a 3 a 120°, mme dihlooho tsa makenete ① le ③ ka nngwe di hlahisa matshwao a pulse a 90 (alternating). Kaha dihlooho tsa makenete ① le ③ di kentswe sebakeng sa angle ya crankshaft ya 3° mme ka nngwe e hlahisa letshwao la pulse ka 4°, phapang ya mokgahlelo pakeng tsa matshwao a pulse a hlahiswang ke dihlooho tsa makenete ① le ③ ke 90° hantle. Matshwao ana a mabedi a pulse a romelwa ho potoloho ya amplification le shaping ya letshwao bakeng sa ho kopanya, ebe letshwao la angle ya crankshaft ya 1° le a hlahiswa.
Hlooho ea makenete ② e hlahisang lets'oao la 120° e kentsoe ho 70° pele ho setsi se shoeleng se holimo, kahoo lets'oao la eona le ka boela la bitsoa lets'oao la setsi se shoeleng se holimo sa 70°, ke hore, nakong ea ts'ebetso ea enjene, hlooho ea makenete ② e hlahisa lets'oao la pulse setsing se shoeleng se holimo sa silindara ka 'ngoe.
Sensor ea boemo ba crankshaft ea mofuta oa magnetic pulse ea Toyota Company
Sistimi ea TCCS ea Khamphani ea Toyota e kenya sensor ea boemo ba crankshaft ea mofuta oa magnetic pulse ho mofani oa thepa. Sensor e arotsoe ka likarolo tse ka holimo le tse ka tlase, karolo e ka holimo e hlahisa lets'oao la G, 'me karolo e ka tlase e hlahisa lets'oao la Ne, ka bobeli li sebelisa rotor e nang le meno a potolohang ho etsa hore coil ea induction ea jenereithara ea lets'oao e be le phetoho ea flux ea makenete, ka hona e hlahisa matla a motlakase a susumetsoang ka mokhoa o fapaneng coil ea induction, e ntan'o holisoa ebe e romeloa ho ECU.
Letšoao la Ne ke lets'oao la ho lemoha sekhutlo sa crankshaft le lebelo la enjene, le lekanang le lets'oao la 1° la sensor ea boemo ba crankshaft ea mofuta oa magnetic pulse ea Nissan Company. Letšoao lena le hlahisoa ke rotor (rotor ea nako ea N0.2) e tsitsitseng karolong e ka tlase ka meno a 24 a arohaneng ka ho lekana le khoele ea ho lemoha e haufi.
Ha rotor e potoloha, lekhalo la moea pakeng tsa meno le karolo ea flange (hlooho ea makenete) ea coil ea ho lemoha lea fetoha, e leng se bakang phetoho tšimong ea makenete e fetang ka har'a coil ea ho lemoha le ho hlahisa matla a electromotive a susumelitsoeng. Ha meno a atamela 'me a tloha hloohong ea makenete, ho tla ba le phetoho keketsehong le phokotsong ea phallo ea makenete, e le hore leino le leng le le leng le tla hlahisa lets'oao le felletseng la motlakase oa AC coil ea ho lemoha ha le feta ka har'a hlooho ea makenete. Rotor ea nako ea N0.2 e na le meno a 24, kahoo ha rotor e potoloha selikalikoe se le seng se felletseng (ke hore, crankshaft e potoloha ka 720°), coil ea ho lemoha e hlahisa matšoao a motlakase a 24 a AC. Pulse e le 'ngoe ea lets'oao la Ne potolohong e lekana le 30° ea potoloho ea crankshaft (720° ÷ 24 = 30°). Ho lemoha sekhutlo ka nepo ho fihlelloa ka ho arola nako ea ho potoloha ea 30° ke ECU likarolong tse 30 tse lekanang, ka hona ho hlahisa lets'oao la ho potoloha ha crankshaft la 1°. Ka ho tšoanang, lebelo la enjene le lekanngoa ke ECU ho latela nako e fetileng pakeng tsa li-pulse tse peli tsa lets'oao la Ne (60° crankshaft rotation). Lets'oao la G le sebelisetsoa ho khetholla li-cylinder le ho lemoha boemo bo bohareng ba piston bo shoeleng, bo lekanang le lets'oao la 120° la sensor ea boemo ba crankshaft ea magnetic pulse ea Nissan. Lets'oao la G le hlahisoa ke rotor ea flange (rotor ea nako ea No.1) ka holim'a jenereithara ea Ne le likhoele tsa eona tse peli tse lekanang tsa ho lemoha (khoele ea ho lemoha ea G1 le khoele ea ho lemoha ea G2). Molao-motheo oa ho hlahisa lets'oao o tšoana le oa lets'oao la Ne. Lets'oao la G le boetse le sebelisoa e le lets'oao la referense bakeng sa ho bala sekhutlo sa crankshaft.
Matshwao a G1 le G2 ka ho latellana a lemoha setsi se ka hodimo se shweleng sa silindara ya botshelela le silindara ya pele. Ka lebaka la boemo ba jenereithara ya matshwao a G1 le G2, ha matshwao a G1 le G2 a hlahiswa, piston ha e hantle setsing se ka hodimo se shweleng (BTDC), empa e boemong ba 10° pele ho setsi se ka hodimo se shweleng.
Ho lemoha sensor ea boemo ba crankshaft ea magnetic pulse
Nka sensor ea boemo ba crankshaft ea magnetic pulse e sebelisoang tsamaisong ea taolo ea elektroniki ea enjene ea 2JZ-GE ea Crown 3.0 sedan e le mohlala ho bontša mokhoa oa eona oa ho lemoha.
Tlhahlobo ea khanyetso ea sensor ea boemo ba crankshaft
Tima switch ea ho hotetsa, tlosa sehokelo sa sensor ea boemo ba crankshaft, 'me u lekanye boleng ba khanyetso lipakeng tsa li-terminal tsa sensor ea boemo ba crankshaft ka tlhophiso ea khanyetso ea multimeter (Tafole ea 1). Haeba boleng ba khanyetso bo se ka har'a sebaka se boletsoeng, sensor ea boemo ba crankshaft e tlameha ho nkeloa sebaka.
Haeba o batla ho tseba ho eketsehileng, tsoela pele ho bala lihlooho tse ling sebakeng sena sa marang-rang!
Ka kopo re letsetse haeba o hloka dihlahiswa tse jwalo.
Zhuo Meng Shanghai Auto Co., Ltd. e ikemiselitse ho rekisa MG&MAXUSlikarolo tsa likoloi lia amoheleha ho reka.
