In order to validate our BMS system at the same time as building our battery, we need to make a board that will give all the same voltages as a 36S battery would. With this, we will be able to connect our AFEs, BMS carrier, and BMS current sense to it and validate the battery system.
We will build a 36S 1P battery system with spare cells in 18650 cell holders. Each of these cells will emulate a module in the actual battery pack.
This test rig should have:
- 36 cells connected in series with voltage taps on each one
- A thermistor on each cell to measure the temperature
- A mount for the current sense resistor and board
- A fuse to protect the batteries
- Switch to easily turn on/off the stack
- Contactor on + and - connections to be consistant with the car implementation
