Please enable JavaScript.

Coggle requires JavaScript to display documents.

LITE BMS - Coggle Diagram

- - - - VEH
        
        AUTH_REQ
        
        C/D = ON
        
        Sleep
        (C/D = ON)
        FETs are ON to ensure AUX batt is charging
        
        Load Disconnection detection shall NOT work
        (as DFET is ON)
        Makes IGN mandatory
        
        NO_AUTH_REQ
        
        Wait for CAN command to turn ON FETs
      - CAN CHARGER
        
        Handshake b/w BMS and CHRGR
        
        C/D = ON
        
        Charger disconnection can be detected based on CAN
        
        C/D = OFF
      - TCU
      - ERRORS
        
        EoD
        
        C: ON
        D: OFF
        BMS: Normal
        
        Recovery on IGN toggle/ CAN charger
        
        UV1
        
        C: OFF
        D: OFF
        BMS: Sleep
        
        Recovery on CAN based Charger
        
        UV2
        
        C: OFF
        D: OFF
        BMS: Shutdown
        
        Recovery on Non CAN based trickle charger
        
        OV
        
        C: OFF
        D: OFF
        
        Recovery on IGN toggle
        
        EoC
        
        C: ON
        D: ON
        CHG_EN = 0
        
        ODCP
        
        C: ON
        D: OFF
        DCHG_EN = 0
        
        Recovery on IGN toggle/ CAN charger/ Load removal
        
        OCCP
        
        C: OFF
        D: ON
        CHG_EN = 0
        
        Recovery on IGN toggle/Re-initialize charging process (after AUTH) / Charger removal
        
        OT_CHG
        
        C: OFF
        D: ON
        CHG_EN = 0
        
        OT recovery temperature
        (CFET to be turned ON on detection of discharging current)
        
        OT_DCHG
        
        C: OFF
        D: OFF
        DCHG_EN = 0
        CHG_EN = 0
        
        Recovery based on temperature
        
        UT_CHG
        
        C: OFF
        D: ON
        CHG_EN = 0
        
        UT recovery temperature
        (CFET to be turned ON on detection of discharging current)
        
        UT_DCHG
        
        C = OFF
        D = OFF
        DCHG_EN = 0
        CHG_EN = 0
        
        Recovery based on temperature
        
        SCP
        
        C: OFF
        D: OFF
        
        Recovery on IGN toggle / Load removal
        
        CELL UNBALANCE
        
        C: OFF
        D: OFF
        Permanent Fail
        
        NO recovery
        
        OWD
        
        C: OFF
        D OFF
        Permanent Failure
        
        NO recovery
        
        TIMESTAMP_ERR
        
        C: OFF
        D: OFF
        
        Recovery on timestamp calibration
        
        C:OFF
        D: OFF
        
        I_CALIBRATION
        
        C: OFF
        D: OFF
        
        Calibrate current
        
        C: OFF
        D: OFF
        
        SW_CFG_MISMATCH
        
        SD_CARD_FAILURE
        
        If in INIT:
        C: OFF
        D: OFF
        
        In RUN:
        C: X
        D: X
        
        FET_OT
        
        C: OFF
        D: OFF
        
        Recovery on temperature AND IGN toggle
        
        BMS_BRD_OT
        
        C: OFF
        D: OFF
        
        Recovery on temperature AND IGN toggle
        
        FUSE_BLOW_ERR
        
        C: OFF
        D: OFF
        Permanent Failure
        
        NO Recovery
        
        FET_FAILURE
        
        C: OFF
        D: OFF
        Permanent Failure
        
        AFE_COMM_FAIL
        
        Permanent Fialure
        
        RTC_COMM_FAIL
        
        Permanent Fialure
        
        PGOOD
        
        PRECHARGE_FAIL
        
        C: OFF
        D: OFF
        
        Recovery on IGN
        Time based recovery?
        
        VEH_AUTH_FAIL
        
        C: OFF
        D: OFF
        
        Recovery on proper authentication with VEH
        
        CAN_BUSOFF_ERR
        
        C: OFF
        D: OFF
        
        CAN recovery