UCAN

1.

PHY ninyenyeri izamuka mubisabwa mumodoka (nka T-BOX) kugirango ikwirakwizwa ryihuta ryihuta, mugihe CAN iracyari umunyamuryango wingenzi muburyo bwo kohereza ibimenyetso byihuse.T-BOX yigihe kizaza izakenera kwerekana indangamuntu yimodoka, gukoresha lisansi, mileage, trayectory, imiterere yikinyabiziga (amatara yumuryango nidirishya, amavuta, amazi n amashanyarazi, umuvuduko udafite akazi, nibindi), umuvuduko, ahantu, ibiranga ibinyabiziga , ibinyabiziga, nibindi kumurongo wimodoka hamwe numuyoboro wimodoka igendanwa, kandi ukohereza amakuru yihuta cyane gushingira kumiterere nyamukuru yiyi ngingo, CAN.

Bus ya CAN yatangijwe na Bosch mu Budage mu myaka ya za 1980 kandi kuva icyo gihe yabaye igice cyingenzi kandi cyingenzi cyimodoka.Kugirango wuzuze ibisabwa bitandukanye muri sisitemu yimodoka, bisi ya CAN igabanyijemo umuvuduko mwinshi CAN na CAN yihuta.umuvuduko mwinshi CAN ikoreshwa cyane cyane mugucunga sisitemu yingufu zisaba imikorere yigihe-nyacyo, nka moteri, itumanaho ryikora, hamwe nibikoresho bya cluster.Umuvuduko muke CAN ukoreshwa cyane cyane mugucunga sisitemu zo guhumuriza hamwe na sisitemu yumubiri bisaba imikorere yigihe gito, nko kugenzura ikirere, guhinduranya intebe, kuzamura idirishya, nibindi.Muri iyi ngingo, tuzibanda kuri CAN yihuta.

Nubwo CAN ari tekinoroji ikuze cyane, iracyafite imbogamizi mubikorwa byimodoka.Muri iyi nyandiko, tuzareba zimwe mu mbogamizi CAN ihura nazo kandi tumenye ikoranabuhanga rijyanye no kubikemura.Hanyuma, ibyiza bya TI ya CAN hamwe nibicuruzwa byayo "bigoye" bizasobanurwa muburyo burambuye.

2.

Ikibazo cya mbere: Kunoza imikorere ya EMI

Nkuko ubucucike bwa elegitoronike mu binyabiziga bwiyongera buri mwaka, guhuza imiyoboro ya electronique (EMC) yimiyoboro yimodoka birasabwa cyane, kuko mugihe ibice byose byinjijwe muri sisitemu imwe, ni ngombwa kwemeza ko sisitemu ikora nkuko byari byitezwe , ndetse no imbere y’ibidukikije bisakuza.Imwe mu mbogamizi zikomeye CAN ihura nazo ni ukurenza imyuka ihumanya ikirere iterwa n urusaku rusanzwe.

Byiza, CAN ikoresha imiyoboro itandukanye kugirango ikumire urusaku rwo hanze.Mubikorwa, ariko, CAN transcevers ntabwo ari nziza ndetse niyo asimmetrie ntoya cyane hagati ya CANH na CANL irashobora gutanga ibimenyetso bitandukanye bihuye, bitera uburyo busanzwe bwa CAN (nukuvuga impuzandengo ya CANH na CANL) guhagarika guhoraho Ibigize DC hanyuma uhinduke urusaku rushingiye kumakuru.Hariho ubwoko bubiri bwuburinganire butera uru rusaku: urusaku rwumuvuduko muke uterwa no kudahuza hagati yurwego rusanzwe rwuburyo rusange murwego rwiganje kandi rwihuta, rufite urusaku rwinshi rwurusaku kandi rugaragara nkurukurikirane rumwe. Umwanya utandukanijwe;n'urusaku rwinshi-rwinshi ruterwa nigihe cyo gutandukanya hagati yinzibacyuho yiganje kandi yihuta CANH na CANL, igizwe nimpiswi ngufi n’imivurungano iterwa namakuru asimbuka.Igishushanyo 1 hepfo cyerekana urugero rwibisanzwe CAN transceiver isohora urusaku rusanzwe.Umukara (umuyoboro 1) ni CANH, ibara ry'umuyugubwe (umuyoboro wa 2) ni CANL naho icyatsi cyerekana igiteranyo cya CANH na CANL, agaciro kayo kangana na kabiri inshuro ebyiri zisanzwe za voltage mugihe runaka mugihe runaka.