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CASE STUDY · FIG. 01
Battery Management System Firmware
Ontario Tech Racing · Formula SAE Electric Car
➜ cat overview.txt
Firmware for the Analog Devices LTC6813-1 on Ontario Tech Racing's Formula SAE car.
It monitors cell voltage and temperature, balances cells passively, and handles faults and errors.
➜ cat implementation.txt
Cell voltage and temperature
The microcontroller talks SPI to an isoSPI transceiver, which carries isoSPI to the LTC6813.
Passive cell balancing
Passive cell balancing for the pack.
Fault and error handling
Fault and error handling in the firmware.
Telemetry over CAN
Pack telemetry is sent over CAN.
Debugging and testing
Debugged and tested with pytest SIL tests and HIL benches.
➜ ls ./hardware
BMS board on the pack
BMS board detail
BMS board on the pack
BMS board detail