Ụgbọ ala OBD2 Control Board
Nkọwa
Ihe ole na ole ị ga-arịba ama:
Njikọ OBD2 dị nso steering wheel gị, mana enwere ike zoo ya n'azụ mkpuchi/panel
Pin 16 na-enye ike batrị (mgbe ọ na-agbanyụ ọkụ)
OBD2 pinout dabere na usoro nzikọrịta ozi
Usoro a na-ahụkarị bụ CAN (site na ISO 15765), nke pụtara na pin 6 (CAN-H) na 14 (CAN-L) ga-ejikọta ya.
N'ime nchọpụta ụgbọ mmiri, OBD2, bụ 'protocol oyi akwa dị elu' (dị ka asụsụ).CAN bụ usoro maka nkwukọrịta (dị ka ekwentị).
Karịsịa, ọkọlọtọ OBD2 na-akọwapụta njikọ OBD2, gụnyere.a set nke ise protocol na ọ nwere ike na-agba ọsọ na (lee n'okpuru).Ọzọkwa, kemgbe 2008, ụgbọ ala CAN (ISO 15765) bụ ụkpụrụ iwu maka OBD2 n'ime ụgbọ ala niile erere na US.
ISO 15765 na-ezo aka n'usoro mmachi etinyere na ọkọlọtọ CAN (nke akọwapụtara n'onwe ya na ISO 11898).Mmadụ nwere ike ịsị na ISO 15765 dị ka "CAN maka ụgbọ ala".
Karịsịa, ISO 15765-4 na-akọwapụta anụ ahụ, oyi akwa njikọ data na ọkwa netwọkụ, na-achọ ịhazi nhazi ụgbọ ala CAN maka akụrụngwa nnwale mpụga.ISO 15765-2 n'aka nke ya na-akọwa oyi akwa ụgbọ njem (ISO TP) maka izipu okpokolo agba CAN nwere ibu akwụ ụgwọ karịrị 8 bytes.A na-akpọkwa ọkọlọtọ sub a mgbe ụfọdụ ka Diagnostic Communication n'elu CAN (ma ọ bụ DoCAN).Hụkwa ihe atụ ụdị OSI oyi akwa 7.
Enwere ike iji OBD2 tụnyere ụkpụrụ oyi akwa ndị ọzọ dị elu (dịka J1939, CANopen).
