Ibhodi Lokulawula Ukuxhumana Kwemoto OBD2
Imininingwane
Izinto ezimbalwa okumele uziqaphele:
Isixhumi se-OBD2 siseduze kwesondo lakho lokuqondisa, kodwa singase sifihlwe ngemuva kwamakhava/amaphaneli
I-Pin 16 inikeza amandla ebhethri (ngokuvamile ngenkathi ukuvutha kuvaliwe)
Iphinikhodi ye-OBD2 incike kuphrothokholi yokuxhumana
Iphrothokholi evame kakhulu i-CAN (nge-ISO 15765), okusho ukuthi izikhonkwane 6 (CAN-H) kanye no-14 (CAN-L) zizoxhunywa
Ebhodini lokuxilonga, i-OBD2, 'iphrothokholi yesendlalelo esiphezulu' (njengolimi).I-CAN iyindlela yokuxhumana (njengocingo).
Ikakhulukazi, izinga le-OBD2 licacisa isixhumi se-OBD2, kuhlanganisa.isethi yamaphrothokholi amahlanu engasebenza kuwo (bheka ngezansi).Ngaphezu kwalokho, kusukela ngo-2008, ibhasi le-CAN (ISO 15765) bekuyiphrothokholi eyisibopho ye-OBD2 kuzo zonke izimoto ezithengiswa e-US.
I-ISO 15765 isho isethi yemikhawulo esetshenziswa kuzinga le-CAN (lona ngokwalo elichazwa ku-ISO 11898).Umuntu angase athi i-ISO 15765 ifana ne-"CAN yezimoto".
Ikakhulukazi, i-ISO 15765-4 ichaza ungqimba olubonakalayo, lwesixhumanisi sedatha kanye nezendlalelo zenethiwekhi, ifuna ukulinganisa ukusebenzelana kwebhasi le-CAN kumishini yokuhlola yangaphandle.I-ISO 15765-2 yona ichaza isendlalelo sezokuthutha (ISO TP) sokuthumela ozimele be-CAN abanomthwalo okhokhelwayo owedlula amabhayithi angu-8.Leli zinga elincane futhi ngezinye izikhathi libizwa ngokuthi Ukuxhumana Kokuxilonga nge-CAN (noma i-DoCAN).Bheka futhi umfanekiso wemodeli ye-OSI yesendlalelo esiyisi-7.
I-OBD2 ingaphinda iqhathaniswe namanye amaphrothokholi esendlalelo aphezulu (isb. J1939, CANopen).