Menene firikwensin crankshaft na mota?
Na'urar firikwensin crankshaft (wanda kuma aka sani da na'urar firikwensin matsayi na crankshaft) muhimmin sashi ne a cikin tsarin sarrafa lantarki na injin. Ana amfani da ita ne musamman don gano matsayin juyawa (kusurwar) na crankshaft da saurin injin, sannan a aika wannan bayanin a ainihin lokaci zuwa sashin sarrafa injin (ECU) don sarrafa daidai lokacin kunnawa, lokacin allurar mai, da jerin kunna wuta.
Babban ayyuka
Kayyade kusurwar crankshaft: Kayyade ainihin matsayin piston a cikin silinda (kamar tsakiyar matacce na sama).
Sa ido kan saurin injin: Lissafa RPM (juyin juya-juya-juya a minti daya) ta hanyar mitar juyawar crankshaft.
Yi aiki tare da firikwensin matsayi na camshaft: Tare, gano yanayin aiki na kowane silinda (kamar bugun matsi), kuma a cimma allurar mai da kunna shi a jere.
Nau'o'in gama gari da ƙa'idodin aiki
Nau'in shigar da maganadisu-lantarki (nau'in bugun maganadisu)
Ya ƙunshi maganadisu na dindindin, na'urar induction, da faifan sigina mai haƙora/rim.
Lokacin da crankshaft ke juyawa, faifan siginar yana canza filin maganadisu, yana samar da siginar ƙarfin lantarki mai canzawa a cikin na'urar.
Tsarin yana da sauƙi kuma abin dogaro, ana amfani da shi sosai a cikin tsoffin samfura da wasu motocin zamani.
Nau'in tasirin zauren
Yana amfani da sinadarin Hall don jin canje-canje a filin maganadisu kuma yana fitar da siginar bugun murabba'in raƙuman ruwa.
Yana buƙatar wutar lantarki ta waje mai ƙarfin 5V kuma yana da ƙarfin hana tsangwama da daidaito mai yawa.
Ana samunsa a cikin samfuran kamar General Motors (GM), Chrysler, da sauransu.
Nau'in photoelectric
Ya ƙunshi LED, photodiode, da faifan sigina mai ramuka masu haske.
Sauye-sauyen samar da haske/inuwa suna samar da siginar bugun jini, wanda aka yi amfani da shi a cikin Nissan da sauran samfura.
Saboda yana da sauƙin kamuwa da mai da ƙura, an rage shi sosai.
Wurin shigarwa
Ƙarshen gaban crankshaft (kusa da bel pulley)
Ƙarshen baya na crankshaft (kusa da flywheel ko gidan watsawa)
Tsakiyar crankshaft
A cikin mai rarrabawa (a cikin tsofaffin samfura)
Bayyanar gazawar da aka saba gani
Injin ba zai iya farawa ba
Rashin kwanciyar hankali, raguwar hanzari
Kunna wutar la'anar injin
Lambobin kurakurai da aka adana (kamar P0335, P0336, da sauransu)
Hanyar ganowa (misali: nau'in maganadisu-lantarki)
Duba juriya: Yawancin juriyar na'urar yawanci shine 125–250Ω (ya danganta da samfurin).
Duba ƙarfin sigina: Lokacin kunna injin, yi amfani da na'urar multimeter don auna tashar fitarwa, wacce yakamata ta sami ƙarfin bugun AC na 0.2–2V.
Duba Gibi: Gibin da ke tsakanin faifan siginar da kan maganadisu na firikwensin gabaɗaya shine 0.2-0.4mm.
Idan na'urar firikwensin ta lalace, ECU ba za ta iya samun mahimman bayanai game da lokacin ba, wanda hakan zai haifar da gazawar tsarin shigar mai da kunna shi, kuma motar ba za ta iya aiki ba.
Na'urar firikwensin crankshaft (wanda kuma aka sani da na'urar firikwensin matsayi na crankshaft) muhimmin sashi ne a cikin tsarin sarrafa lantarki na injin. Babban aikinsa shine gano kusurwar crankshaft, saurin injin, da matsayin tsakiyar piston a saman matacce, sannan a aika wannan bayanin a cikin siginar lantarki zuwa sashin sarrafa injin (ECU) don daidaita lokacin kunnawa da lokacin allurar mai.
Aikin asali
Kayyade matsayin crankshaft: Gano kusurwar crankshaft na yanzu.
Auna saurin injin: A lissafa saurin (RPM) ta hanyar adadin bugun jini a kowane lokaci na naúrar.
Gano cibiyar da ta mutu a saman piston: Bayar da bayanin yadda ake kunna wuta da kuma allurar mai a kowace silinda.
Yi aiki tare da firikwensin matsayi na camshaft: Tare, ku tantance wane silinda ne a ƙarshen bugun matsi, kuma ku cimma kunna wuta da allurar mai a jere.
Ka'idar aiki (ta hanyar rarraba nau'in)
Na'urar firikwensin crankshaft tana da manyan nau'ikan guda uku, kuma ka'idojin aikinsu sune kamar haka:
Nau'in shigar da maganadisu-lantarki (nau'in bugun maganadisu)
Ya ƙunshi maganadisu na dindindin, na'urar induction, da faifan sigina mai haƙora/rim.
Yayin da crankshaft ke juyawa, faifan siginar yana canza filin maganadisu, yana haifar da canji a filin maganadisu, kuma yana samar da ƙarfin lantarki mai canzawa (siginar sine wave) a cikin na'urar.
ECU tana canza wannan siginar zuwa bugun jini kuma tana ƙididdige gudu da matsayi.
Misali: Samfuran farko na Nissan da Toyota sun yi amfani da wannan hanyar, kuma faifan siginar sau da yawa yana da haƙoran da ba su dace ba don daidaitawa.
Nau'in tasirin zauren Ana amfani da sinadarin Hall don jin canje-canje a cikin filin maganadisu.
Ana kunna abin da ke motsawa (tare da ruwan wukake da sanduna) don juyawa tare da crankshaft. Idan ramin ya daidaita da abin da ke cikin Hall, filin maganadisu yana wucewa kuma yana fitar da bugun jini mai girma; lokacin da ruwan wukake ya toshe shi, filin maganadisu yana wucewa kuma yana fitar da ƙaramin matakin.
Fitowar siginar murabba'i ce ta raƙuman ruwa, wadda ke buƙatar wutar lantarki ta waje mai ƙarfin 5V kuma tana da ƙarfin hana tsangwama.
Na gani
Ya ƙunshi tushen hasken LED, photodiode, da faifan sigina mai ramin haske.
Lokacin da faifan siginar ke juyawa, ramin hasken yana barin haske ya wuce ya toshe shi, wanda ke haifar da hasken photodiode ya samar da ƙarfin bugun jini.
Yana iya samar da siginar kusurwar crankshaft mai inganci mai girman 1°, amma yana iya kamuwa da gurɓatar mai da ƙura, kuma ana yawan ganinsa a cikin tsofaffin gine-ginen rarrabawa.
Alamomin Laifi na yau da kullun
Injin ba zai iya farawa ko farawa da wahala ba
Rashin ƙarfi, girgiza, da kuma tsayawa
Hasken laifuffuka yana kunne (kamar P0335, P0336, da sauransu, lambobin laifuffuka masu alaƙa don firikwensin matsayi na crankshaft)
Dalilan da suka fi yawa: tsoffin wayoyi, na'urori masu auna datti, rashin isasshen sarari (kamar na'urar auna wutar lantarki mai maganadisu ya kamata ta kasance 0.2–0.4mm)
Wurin shigarwa
Ƙarshen gaban crankshaft (kusa da pulley)
Gidan Flywheel ko kama
Ƙarshen gaban camshaft
A cikin mai rarrabawa (a cikin tsofaffin samfura)
Yawancin samfuran da ake amfani da su a yanzu suna amfani da na'urori masu auna maganadisu ko na Hall, domin tsarinsu abin dogaro ne kuma ana iya daidaita shi. Ba kasafai ake amfani da nau'in na'urar gani a cikin injunan zamani ba saboda yanayin muhallinsa.
Idan kana son ƙarin bayani, ci gaba da karanta sauran labaran da ke wannan shafin!
Don Allah a kira mu idan kuna buƙatar irin waɗannan kayayyaki.
Kudin hannun jari Zhuo Meng Shanghai Auto Co., Ltd. ta kuduri aniyar sayar da MG&MAXUSsassan mota maraba siya.
