【AUTOSAR】VCU开发实际项目讲解(六)----VCU严重故障执行PRA OFF

          1. 严重故障执行PRA OFF

检测到以下任一故障时,执行高压下电处理:

VCM 供电电压过高

VCM供电电压过低

PT+EV-CAN Bus-OFF

B-CAN Bus-OFF

与MCU通信丢失

与MCU通信数据异常

与BMS通信丢失

与BMS通信数据异常

NVM故障(非易失性存储器EEPROM故障)

预充故障

主正闭合故障

预充继电器驱动故障

主正继电器驱动故障

主负继电器驱动故障

MCU_StatusHVDCOverVoltage

MCU_StatusHVDCUnderVoltage

MCU_StatusIGBTHighSideDesat

MCU_StatusIGBTLowSideDesat

MCU_StatusIGBTHighSideUVLO

MCU_StatusIGBTLowSideUVLO

MCU_Status4PhaseUnbalanceCurrent

MCU_StatusMotorOverTemp

MCU_StatusVbattOverVoltage

MCU_StatusVbattUnderVoltage

MCU_StatusIGNOverVoltage

MCU_StatusIGNUnderVoltage

MCU_Status3PhaseOverCurrent

MCU_StatusIGBTOverTemp

MCU_StatusMotorOverSpeed

MCU_StatusResolverDOS

MCU_StatusResolverLOT

MCU_Status5VOutOfRange

MCU_Status12VOutOfRange

MCU_StatusRAMFault

MCU_StatusROMFault

MCU_StatusCANBusOff

MCU_StatusCANBusPhycalError

MCU_StatusCANLossOfComm

MCU_StatusStartupChargingTimeOut

MCU_StatusStartupHVDCOV

MCU_StatusStartupHVDCUV

BMS_StatusCellVoltageSensorOpen

BMS_CellBalancingFET

BMS_StatusPackVolHigh

BMS_StatusPackVolLow

BMS_StatusCellVolDevHigh_Fault

BMS_StatusCAN2Fault

BMS_StatusCurrentSensorOpen

BMS_StatusTempSensorFault

BMS_StatusTempDevHigh_Fault

BMS_RelayOffReq

处理如下:

【AUTOSAR】VCU开发实际项目讲解(六)----VCU严重故障执行PRA OFF_第1张图片

 

 

整车发生以下任一严重故障时,VCM采取紧急下电处理,处理流程如下:

  1. 高压互锁断开(H/W)
  2. 碰撞保护
  3. BMS_StatusIsolationFault
  4. BMS_StatusHVIL

处理如下:

【AUTOSAR】VCU开发实际项目讲解(六)----VCU严重故障执行PRA OFF_第2张图片

 

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