bms_f107

BMS_f107_SW_Cell_Voltage_Sensor

A high voltage (HV) battery cell voltage sensor error is detected. There are three reasons for this alert to be reported by the Battery Management System (BMS):

 

  1. BMS_a107_errorType = BMS_A107_MODULEBRICK_MISMATCH
    • This alerts means that the voltage of the module differs by more than 35mV from the sum of the brick voltages of that module.
  2. BMS_a107_errorType = BMS_A107_TVSH_BLEEDV_LOW
    • This alert type means that the bleed resistor is turned on for that brick, but the voltage is too low (likely due to a stuck bleed resistor).
  3. BMS_a107_errorType = BMS_A107_TVSH_IMP_HIGH
    • This alert type is the most common. The system has detected a high impedance on the sensor harness from the Battery Monitoring Board (BMB) to the bricks / module. It means that the measurements from that BMB cannot be trusted.

 

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