Chii chinonzi CAN bus communication?
KUNOGONA kutaurirana nebhazi
Controller Area Network (CAN) ibhazi rekutaura neprotocol rinoshandiswa-munguva chaidzo. Inogona kutumira masaini ichishandisa-tambo yakamonyoroka, coaxial cable, kana fiber optic cable. Nekuda kwekuita kwayo kwepamusoro, kuvimbika kwepamusoro, uye kuita kwepamusoro kwechokwadi-nguva, yave imwe yemabhazi emumunda anoshandiswa zvakanyanya pasi rose. Kukurukurirana kweCAN parizvino ndiyo nzira yekukurukurirana mubhatiri manejimendi masisitimu (BMS). Iyo inogamuchirwa zvakanyanya mumaindasitiri akawanda emagetsi emagetsi BMS masisitimu mukati nekunze, pamwe nemudzimba nekunze BMS data kutaurirana zviyero. RS232 uye RS485 mabhazi anoshandiswawo mune kumwe kutaurirana kwemukati mukati meBMS masisitimu.
Mufananidzo 8-26 unoratidza bhatiri rekushandisa bhazi remagetsi. Pakati pavo, RS232 inonyanya kuona kutaurirana pakati pebhodhi guru rekutonga uye kombiyuta inotakura kana chigadziro chemaoko, uye inopedzisa kuiswa kwezvikamu zvakasiyana-siyana zvebhodhi guru rekutonga uye bhodhi rekuona; RS485 inonyanya kuona kutaurirana pakati peiyo main control board uye yekuona bhodhi, uye inopedzisa kutapurirana kwebhatiri data uye yekuona bhodhi paramita pakati pebhodhi nevaranda; CAN kutaurirana yakakamurwa kuita nzira mbiri, CAN1 neCAN2. CAN1 inonyanya kutaurirana nemutongi mukuru wemotokari kuti apedze kutumira bhatiri{9}rimwe ruzivo rwunodiwa nemotokari yese; CAN2 inonyanya kutaurirana nechiridzwa chemotokari uye isiri-yemotokari charger kuti ione kugovaniswa kwedhata yebhatiri uye nekupa hwaro hwedata hwekuchaja kutonga.
Mamiriro ebhatiri manejimendi system (BMS) mumodhi yekushanda kwemotokari inoratidzwa muFigure 8-27. Central control module yeBMS inopa ruzivo chairwo-nenguva uye hunodiwa mamiriro ebhatiri kumutongi wemotokari uye chidhiraivho chemotokari kuburikidza nebhazi reCAN1, zvichiita kuti kugamuchirwe mamwe mazano ane musoro ekudzora kuti apedze mabasa ekushanda nemazvo uye kuwedzera hupenyu hwebhatiri. Panguva imwe chete, iyo BMS (central control module) inotaura zvakadzama bhatiri pack ruzivo kune onboard monitoring system kuburikidza nepamusoro-speed CAN2 bhazi, kuratidza mamiriro ebhatiri data uye nekupa kukanganisa maalarm, nekudaro ichipa hwaro hwekugadzirisa bhatiri uye kutsiva.
Mamiriro eBMS mukuchaja kwechimbichimbi anoratidzwa mumufananidzo 8-28. Iyo charger yakabatana panyama nemotokari yemagetsi. Panguva ino, bhazi repamusoro-rinomhanya reCAN2 rinobatana nechaja node, ukuwo zvimwe zvisina kuchinjwa. Chaja inoshandisa -bhazi rinomhanya reCAN2 kunzwisisa mamiriro ebhatiri renguva chaiyo uye kugadzirisa nzira yekuchaja kuti ichajike zvisina njodzi.
