Mota OBD2 Kukurukurirana Kudzora Board

Mota OBD2 Kukurukurirana Kudzora Bhodhi Inoratidzwa Mufananidzo

Tsanangudzo Pfupi

Iwe wakambosangana neOBD2 kare:

Wakamboona chiedza chekushaya simba pane dashboard yako?

Ndiyo mota yako inokuudza kuti pane nyaya.Kana ukashanyira makanika, anozoshandisa OBD2 scanner kuona nyaya.

Kuti aite kudaro, anozobatanidza muverengi weOBD2 kune OBD2 16 pini yekubatanidza pedyo nechidhiraivho.

Izvi zvinoita kuti averenge maOBD2 macode aka Diagnostic Trouble Codes (DTCs) kuti aongorore uye agadzirise nyaya.

Iyo OBD2 yekubatanidza

Iyo OBD2 yekubatanidza inoita kuti iwe uwane data kubva kumota yako zviri nyore.Iyo yakajairwa SAE J1962 inotsanangura maviri echikadzi OBD2 16-pini yekubatanidza mhando (A & B).

Mumufananidzo uyu muenzaniso weiyo Type A OBD2 pini yekubatanidza (iyo dzimwe nguva inodaidzwa seData Link Connector, DLC).

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Zvinhu zvishoma zvekucherechedza:

Iyo OBD2 yekubatanidza iri padyo nevhiri rako, asi inogona kuvanzwa kuseri kwemavhavha / mapaneru

Pin 16 inopa simba rebhatiri (kazhinji kana kupisa kwakadzimwa)

Iyo OBD2 pinout inotsamira pane yekutaurirana protocol

Iyo inonyanya kuzivikanwa protocol ndeye CAN (kuburikidza neISO 15765), zvichireva kuti pini 6 (CAN-H) uye 14 (CAN-L) inowanzobatanidzwa.

Pabhodhi diagnostics, OBD2, ndeye 'yepamusoro layer protocol' (semutauro).CAN inzira yekutaurirana (sefoni).

Kunyanya, iyo OBD2 chiyero inotsanangura iyo OBD2 yekubatanidza, incl.seti yemaprotocol mashanu ayo anogona kumhanya pairi (ona pazasi).Kupfuurirazve, kubvira 2008, CAN bhazi (ISO 15765) yanga iri iyo inosungirwa protocol yeOBD2 mumotokari dzese dzinotengeswa muUS.

ISO 15765 inoreva seti yezvirambidzo inoshandiswa kune iyo CAN chiyero (iyo pachayo inotsanangurwa muISO 11898).Mumwe anogona kutaura kuti ISO 15765 yakafanana ne "CAN yemotokari".

Kunyanya, ISO 15765-4 inotsanangura iyo yemuviri, data link layer uye network layer, ichitsvaga kumisikidza iyo CAN bhazi interface yekunze bvunzo michina.ISO 15765-2 zvakare inotsanangura iyo yekutakura layer (ISO TP) yekutumira CAN mafuremu ane miripo inodarika 8 bytes.Iyi diki chiyero zvakare dzimwe nguva inonzi Diagnostic Kukurukurirana pamusoro peCAN (kana DoCAN).Onawo iyo 7 layer OSI modhi mufananidzo.

OBD2 inogonawo kufananidzwa nemamwe mapuroteni epamusoro (eg J1939, CANopen).

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