BMS_u018_SOC_Imbalance_Limiting

The battery managed system (BMS) detects a condition internal to the high voltage (HV) battery that requires it to limit the maximum allowed brick voltage.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Maximum battery charge level reduced
OK to drive - Schedule service

Impact

The target max brick voltage for charge is limited to the voltage corresponding to 50% state of charge (SOC).

Description

The battery managed system (BMS) detects a condition internal to the high voltage (HV) battery that requires it to limit the maximum allowed brick voltage.

Cause

The BMS detects that the overall SOC imbalance (BMS_socCellMaxDbg - BMS_socCellMinDbg) exceeds the acceptable threshold.

Clear condition

The BMS detects that the overall SOC imbalance (BMS_socCellMaxDbg - BMS_socCellMinDbg) is within the threshold.

Models

Model S 2012-2020, Model X 2015-2020

Visibility

customer, service

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