Aikin firikwensin bugun mota
Babban aikin firikwensin ƙwanƙwasa na mota shine gano abin da ke faruwa a cikin injin, da kuma hana ƙwanƙwasawa ta hanyar daidaita kusurwar gaba ta hanyar kunna wuta, don kare injin daga lalacewa.
Na'urar firikwensin ƙwanƙwasa tana canza girgizar injina zuwa siginar lantarki da ake aikawa zuwa sashin sarrafa lantarki (ECU). ECU tana daidaita kusurwar ci gaba da kunna wuta bisa ga siginar da aka karɓa don guje wa ci gaba da faruwar fashewar. Na'urar firikwensin ƙwanƙwasa yawanci tana amfani da fasahar yumbu na piezoelectric. Lokacin da injin ya girgiza, yumbu yana matsewa kuma ya lalace don samar da siginar lantarki, wanda ake aika wa ECU ta hanyar waya mai kariya don sarrafawa.
Ka'idar aiki na na'urar firikwensin ƙwanƙwasa ta dogara ne akan tasirin piezoelectric, lokacin da injin ya ƙwanƙwasa, ana matse yumbun piezoelectric da ke cikin na'urar firikwensin, wanda ke samar da siginar lantarki. Ana aika waɗannan siginar zuwa ECU, wanda ke daidaita kusurwar ci gaba ta kunnawa bisa ga bayanan da aka adana don hana ƙwanƙwasawa. Bugu da ƙari, na'urori masu auna ƙwanƙwasa na iya jin saurin da matsayin injin, suna ba da bayanai da yawa don taimakawa wajen inganta aikin injin.
Ana sanya na'urar firikwensin ƙwanƙwasa a wani wuri na musamman a cikin injin, kamar tsakanin silinda 2 da 3 na injin silinda huɗu ko tsakanin silinda 1 da 2 da silinda 3 ko 4. Matsayin da yake hawa yana tabbatar da ɗaukar ƙananan girgiza da ƙwanƙwasa na injin.
Idan na'urar firikwensin bugawa ta gaza, kodayake ba zai sa injin ya kasa tashi ba, zai haifar da matsaloli kamar girgizar injin, asarar wutar lantarki, lalacewar tattalin arzikin mai, da kuma fitilun matsala. Saboda haka, yadda ya kamata na'urar firikwensin bugawa ta yi aiki yana da matukar muhimmanci ga aikin injin.
Na'urar firikwensin ƙwanƙwasa ta mota na'ura ce da aka sanya a kan toshe injin, wacce galibi ake amfani da ita don gano bugun injin. Akwai nau'ikan na'urori masu auna bugun ƙwanƙwasa da yawa, waɗanda suka fi shahara sun haɗa da magnetostrictive da piezoelectric ceramic.
Nau'i da tsarin firikwensin ƙwanƙwasa
Magnetostrictive : ya ƙunshi tsakiyar maganadisu, maganadisu na dindindin da kuma murfin induction. Lokacin da injin ya yi rawar jiki, tsakiyar maganadisu yana canzawa, wanda ke haifar da canji a cikin kwararar maganadisu a cikin murfin induction, wanda ke haifar da ƙarfin lantarki da aka haifar .
yumbu mai amfani da piezoelectric : Idan injin ya girgiza, ana matse yumbun da ke ciki don samar da siginar lantarki. Saboda siginar ba ta da ƙarfi, galibi ana naɗe kebul ɗin haɗin da waya mai kariya .
piezoelectric resonance : an sanya shi a saman jikin injin, amfani da tasirin piezoelectric don canza girgizar injiniya zuwa siginar lantarki. Idan mitar girgizar ƙwanƙwasa ta yi daidai da mitar halitta ta firikwensin, abin da ke faruwa na resonance zai faru, kuma za a fitar da babban ƙarfin siginar ƙwanƙwasa zuwa ECU, bisa ga haka ECU za ta daidaita lokacin kunna wuta don guje wa ƙwanƙwasa .
Yadda na'urar firikwensin ƙwanƙwasa ke aiki
Na'urar firikwensin ƙwanƙwasa tana jin girgiza da sautunan injin sannan ta mayar da su zuwa siginar lantarki da ake aikawa zuwa sashin sarrafa injin (ECU). ECU tana daidaita kusurwar gaba ta kunna wuta bisa ga siginar da aka karɓa don hana faruwar fashewar. Ka'idar aiki ta musamman ita ce kamar haka:
Magnetostrictive : Girgizar injin yana sa tsakiyar maganadisu ya canza, yana canza kwararar maganadisu a cikin coil ɗin induction, wanda ke haifar da ƙarfin lantarki da aka haifar.
yumbu mai amfani da piezoelectric: idan injin ya girgiza, ana matse yumbu mai amfani da piezoelectric don samar da siginar lantarki, ECU yana daidaita lokacin kunna wuta bisa ga siginar.
Nau'in amsawar piezoelectric : lokacin da mitar girgizar ƙwanƙwasa ta yi daidai da mitar halitta ta firikwensin, wani lamari na resonance yana faruwa, kuma babban ƙarfin siginar ƙwanƙwasawa yana fitowa zuwa ECU.
Matsayin na'urori masu auna bugun ƙwanƙwasa a cikin motoci
Babban aikin na'urar firikwensin knock shine auna matakin jitter na injin. Lokacin da injin ya samar da knock, ana aika siginar lantarki zuwa ECU, kuma ECU yana daidaita kusurwar ci gaba da kunna wuta daidai da haka don hana ƙarin knock. Knock na iya haifar da lalacewar injin, don haka na'urorin firikwensin knock suna taka muhimmiyar rawa wajen kare injin .
"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 kayayyakin mota na MG&750. siya.
