The Battery Management System is responsible for collecting temperature and voltage data from the pack and determining if it is safe to operate. The BMS is also responsible for balancing the series cells of the pack. The BMS communicates some of this data to the GUB. Thermal Management is a large part of the BMS's job. The BMS controls the charging contactor. The BMS has 3 revisions.

Fallacies and Pitfalls

Take some time here to explain where you went wrong in the project development. This is a chance to reflect on your shortcomings and share your solutions.

<Example: We did not use the correct resistor values for our power indicator diodes. We resolved this issue by carefully writing out the Ohm's Law equations, and used Digikey's calculator.>

Revision Changes

Most EVT projects go through 2-3 revisions before the project is complete. Keep a record of changes for each revision. I recommend following the outline below:

Revision 2: 

• Recalculated resistor value for LED1, now the LED1 lights up when the board is powered up.

• Found the correct measurement chip footprint and fixed it in Altium.

Revision 1: 

• Base project, ordered from PCBway and discovered that the measurement chip footprint was inverted. Also, the 3.3V LED1 would not light up.

Project Team Members

<Team Lead> - <Karsten Bergthold> - <940-367-9852>

<Team Member: Firmware> - <Matthew Magee> - <484-661-3950>

<Team Member>  - <Karsten Bergthold> - <Schematics and Simulations> - <940-367-9852>

<Team Member>  - <Karsten Bergthold> - <Layout> - <940-367-9852>

<Team Member>  - <Karsten Bergthold> - <Assembly> - <940-367-9852>

<Team Member>  - <Karsten Bergthold> - <Validation> - <940-367-9852>

<Team Member>  - <Karsten Bergthold> - <Documentation> - <940-367-9852>