Kuyini CAN-Bus, futhi ziyini?

Okwamanje, cishe igcwele yonke imoto zanamuhla on-ebhodini amakhompyutha, izinhlelo ABS, EBD, amafasitela ngamandla namanye amadivayisi amaningi electronic. Manje, kule nqubo ungalawula mechanical hhayi kuphela, kodwa futhi izinhlelo womoya kanye wokubacindezela. Ngisho injini ngeke akwenze ngaphandle electronics. Kuyinto idivayisi ekhethekile - CAN-ibhasi. Yilokho ngakho kuxoxwa namuhla.

Umlando nesenzakalo

Umqondo CAN-ibhasi uvele the 80s kwekhulu elidlule. Khona-ke inkampani owaziwa German "Bosch" ngokubambisana neNhlangano ngokuqinile "Intel" uye wazakhela idivayisi entsha digital ukudluliswa kwedatha, othiwa Isilawuli Area Network.

Yini eyayenza?

Lokhu ibhasi kungenzeka kuchunywa zonke izinzwa, futhi ilawula emabhuloki ezisesandleni imoto. UNGAKWAZI kungenziwa exhunywe immoblayzerom, SRS uhlelo, ESP, electronic control injini iyunithi, ukudluliswa, ngisho ama-airbag ezinhlangothini. Ngaphezu kwalokho, isondo iyathintwa ne izinzwa ukumiswa, le-central locking uhlelo nokulawula sezulu. Zonke lezi zinhlelo axhunyiwe kwimodi-Duplex ngokugcwele ngesilinganiso idatha engafinyelela kwengu-1 Mbit / s.

CAN-ibhasi: Incazelo nezici zedivayisi

Ukuze konke ukusebenza yayo, leli washi siqukethe izintambo ezimbili nje kanye chip olulodwa. Ngaphambili, ukuxhuma yonke izinzwa bephethe CAN-ibhasi amashumi Imigudu. Futhi uma eminyakeni 80 ngayinye kwentambo ukudlulisa isignali eyodwa kuphela, khona-ke manje lesi silinganiso ifinyelela amakhulu.

CAN isondo yesimanje futhi ezahlukene ukuthi inomsebenzi we ukuxhuma iselula. Electronic ukhiye indandatho, wenza umsebenzi ukhiye ukuthungela, ingaphinda ixhunywe unit futhi wamukele ukwaziswa ngaphansi kokulawulwa injini iyunithi.

Kubalulekile futhi ukuthi leli thuluzi ingase chaza inkinga ukusebenza imishini umshini futhi kwezinye izimo akuqede. Kuyinto cishe awanandaba kwezithikamezo, futhi ine oxhumana ezinhle ukwahlukanisa. CAN-ibhasi algorithm oyinkimbinkimbi kakhulu. Nedatha ethunyelwayo ngokusebenzisa ishaya, kweso siguqulelwa izithombe. Ulwazi ukhonza njengesiqondiso-wire 2 ikhoyili enjani pair. Kukhona futhi imikhiqizo ye-fiber, kodwa abaqiniseki ngempumelelo ukusebenza, ngakho-ke, kungasiko ezivamile njengoba ukhetho lokuqala. Mancane kakhulu amathuba okuba ukuhlangabezana CAN-ibhasi, edlulisa ulwazi nge umsakazo noma infrared.

Ukusebenza kanye nokusebenza

Ukuze uthuthukise ukusebenza kule divayisi, abakhiqizi ngokuvamile unciphise ubude izintambo. Uma ubude ingqikithi ibhasi buzoba buncane kuka-10 metres, izinga Imininingwane kuzokhulisa up 2 megabits ngomzuzwana. Ngokuvamile ngalesi indlela isivinini 64 lokudlulisa nge izinzwa ngogesi futhi abalawuli. Uma ibhasi ixhunywe inombolo enkulu amadivayisi kudala izifunda eziningana ukuthola futhi ngokudlulisa ulwazi.

Uma CAN-Bus Kuzobuye athuthukile, mhlawumbe maduze ukufakwa ngokuphelele zonke izimoto namaloli, kuhlanganise i-yasekhaya.