What are the core functions of power battery BMS?

Are power battery BMSs important for power vehicles? What does it do?

The core functions of power battery BMS include the following:

  1. Battery Data Acquisition: The power battery BMS acquires data such as voltage, temperature, current, insulation resistance, and high-voltage interlock status of the battery system in order to provide real-time battery status information.
  2. Battery status analysis: The power BMS examines data to calculate the battery’s SOC and SOH, crucial factors for assessing battery performance and range.
  3. Battery safety protection: The BMS monitors the battery system and takes protective measures, such as power limitation or disconnection, in case of faults such as over-voltage, under-voltage, high-temperature, low-temperature, over-current, etc. in order to ensure the safe operation of the battery.
  4. Battery system energy management: The BMS manages the charging and discharging process of the battery, including controlling the charging current, charging cut-off voltage, discharging power, etc., to optimize the performance and life of the battery.
  5. Data communication and storage: The BMS transmits battery data to the vehicle system via CAN communication and stores historical data for subsequent analysis and fault diagnosis.
  6. Fault diagnosis and management: The BMS performs fault diagnosis according to the preset fault thresholds, and when a fault is detected, it takes appropriate protective measures and provides fault information to the vehicle system.

MORE: What is the role of BMS in power battery safety?


What Others Are Asking

How to test a BMS fault with a multimeter?

I want to test whether is my BMS fault or not and now I have a multimeter. Can you tell me how to test it with a multimeter? And please tell me what I should pay attention to during the testing process.

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