Layin firikwensin ABS na gaba
Ana amfani da na'urar firikwensin ciki a cikin tsarin ABS (Tsarin Birki Mai Hana Kullewa) na motar mota. Yawancin tsarin ABS ana sa ido da shi ta hanyar na'urar firikwensin inductive don sa ido kan saurin abin hawa. Na'urar firikwensin ciki tana fitar da saitin daidai Mita da girman siginar canjin yanayi na sinusoidal suna da alaƙa da saurin ƙafafun. Ana aika siginar fitarwa zuwa sashin sarrafa lantarki na ABS (ECU) don tabbatar da sa ido kan saurin ƙafafun a ainihin lokaci.
manyan nau'ikan
1. Na'urar firikwensin gudu ta ƙafa mai layi
Na'urar firikwensin gudu ta ƙafafu masu layi galibi tana ƙunshe da maganadisu na dindindin, sandar sanda, na'urar induction da kuma gear zobe. Lokacin da gear zobe ke juyawa, saman haƙoran da kuma baya suna fuskantar axis na polar a madadin haka. A lokacin juyawar gear zobe, kwararar maganadisu da ke cikin na'urar induction tana canzawa a madadin haka don samar da ƙarfin lantarki mai haifar da wutar lantarki, kuma ana shigar da wannan siginar zuwa sashin sarrafa lantarki na ABS ta hanyar kebul a ƙarshen na'urar induction. Lokacin da saurin gear zobe ya canza, mitar ƙarfin lantarki mai haifar da wutar lantarki ma yana canzawa.
2. Na'urar firikwensin saurin tayoyin zobe
Na'urar firikwensin gudu ta tagar annular galibi tana ƙunshe da maganadisu na dindindin, na'urar induction da kuma gear zobe. Magnet na dindindin ya ƙunshi nau'i-nau'i da dama na sandunan maganadisu. A lokacin juyawar gear zobe, kwararar maganadisu da ke cikin na'urar induction tana canzawa a madadin haka don samar da ƙarfin lantarki mai haifar da wutar lantarki. Ana shigar da wannan siginar zuwa sashin sarrafa lantarki na ABS ta hanyar kebul a ƙarshen na'urar induction. Lokacin da saurin gear zobe ya canza, mitar ƙarfin lantarki mai haifar da wutar lantarki ma yana canzawa.
3. Na'urar firikwensin gudu ta hanyar zauren
Idan gear ɗin yana a matsayin da aka nuna a (a), layukan ƙarfin maganadisu da ke ratsa sinadarin Hall suna warwatse, kuma filin maganadisu yana da rauni sosai; yayin da gear ɗin yake a matsayin da aka nuna a (b), layukan ƙarfin maganadisu da ke ratsa sinadarin Hall suna taruwa, kuma filin maganadisu yana da ƙarfi sosai. Lokacin da gear ɗin ya juya, yawan kwararar maganadisu da ke ratsa sinadarin Hall yana canzawa, don haka yana haifar da canji a cikin ƙarfin Hall, kuma sinadarin Hall zai fitar da ƙarfin millivolt (mV) na matakin raƙuman ruwa na quasi-sine. Wannan siginar kuma tana buƙatar a canza ta zuwa ƙarfin bugun jini na yau da kullun ta hanyar da'irar lantarki.
Shigar da Gyara Watsa Labarai
(1) Kayan aikin zoben tambari
Giyar zobe da zoben ciki ko mandrel na na'urar cibiya suna ɗaukar tsangwama. A lokacin haɗa na'urar cibiya, ana haɗa gear zobe da zoben ciki ko mandrel tare ta hanyar injin matse ruwa;
(2) Shigar da firikwensin
Akwai nau'ikan haɗin gwiwa guda biyu tsakanin na'urar firikwensin da zoben waje na na'urar cibiya: dacewa da tsangwama da kulle goro. Na'urar firikwensin saurin ƙafafun layi galibi tana cikin nau'in kulle goro ne, kuma na'urar firikwensin saurin ƙafafun annular tana ɗaukar dacewa da tsangwama;
Nisa tsakanin saman ciki na maganadisu na dindindin da saman haƙorin gear zobe: 0.5±0.15mm (galibi ana tabbatar da shi ta hanyar sarrafa diamita na waje na gear zobe, diamita na ciki na firikwensin da kuma ma'aunin haɗin kai)
(3) Gwaji ƙarfin lantarki Yi amfani da ƙarfin fitarwa na ƙwararru da tsarin raƙuman ruwa da aka yi da kanka a wani takamaiman gudu, kuma gwada ko akwai ɗan gajeren da'ira don firikwensin layi;
Gudun: 900rpm
Bukatar ƙarfin lantarki: 5. 3~7.9v
Bukatun tsarin waveform: bargawar sine
gano ƙarfin lantarki
Gano ƙarfin lantarki na fitarwa
Abubuwan gwaji:
1. Ƙarfin fitarwa: 650~850mv(1 20rpm)
2. Tsarin fitowar: raƙuman sine mai ƙarfi
Na biyu, gwajin juriya mai ƙarancin zafin jiki na firikwensin ciki (abs sensor)
Ajiye na'urar firikwensin a zafin 40°C na tsawon awanni 24 don duba ko na'urar firikwensin ciki har yanzu zata iya biyan buƙatun aikin lantarki da rufewa don amfani na yau da kullun.
