BMS Master Board of UoP7e electric formula

This circuit is intended to be installed at the battery pack of the formula Uop7e. As a BMS Master board, this board performs the following functions:

•   It uses BMS slave signals to ensure that the battery cells stay within the voltage, temperature, and current draw boundaries and validates that it is safe to allow the voltage of the batteries to rise outside of the batteries box.

•  A current sensor is connected to one of the connectors, which detects the overall output current of the battery. If an overcurrent event is detected, the board uses an analog circuit to open the battery's high voltage/current relays. 

• This board is in charge of activating and deactivating the inverter capacitors' precharge circuit. When it detects that the voltage of the inverter's capacitors exceeds 90%, it closes the battery's high voltage/current relays and short circuits the battery terminals with the inverter's DC input.

•  This board also connects to and communicates with the charger during the charging process. If a charging procedure or battery failure occurs, the battery will be disconnected from the charger's output.

•   The microprocessor analyzes all of the board's signals to determine what caused the problem during failure. This microprocessor is also the board's controller, deciding when the precharge process should be activated and communicating with other boards via the IsoSPI protocol.