Battery Packs and Accumulator Management System
The TSV subsystem delivers high voltage power to the FSAE vehicle in order to power it. Each of the two packs in the vehicle supply about 54V through 16 LiFePO4 battery cells which are each monitored through the accumulator management system (AMS). The AMS consists of a pack manager (PacMan) and 16 cell manager (CellMan) system boards, one per cell. The two packs are wired in series to provide ~108 V to the assembled accumulator system. The subsystem interacts with other car subsystems via data acquisition through CANOpen and via the vehicle’s safety loop.
User Manual
Maintenance Manual
Full Pack Electrical BOM
Pack Errata
Mechanical Documentation
Pack Assembly Video
Refer here in the high level drawing section for full mechanical drawings and inventor files located in the CompleteAssembly/2019-2020Complete/TSV/FinalPackAssembly
AMS Board Documentation
| PacMan | CellMan | |
|---|---|---|
| Schematic: | 1.0 – PDF | 2.2 – PDF |
| 1.2 – PDF | — | |
| 1.3 – PDF | — | |
| 1.3 – PDF
Updated Naming |
— | |
| PCB Layout: | 1.0 – PDF | 2.2 – PDF |
| 1.2 – PDF | — | |
| 1.3 – PDF | — | |
| BOM: | 1.0 – Excel | 2.2 – PDF |
| 1.2 – Excel | 2.2 – CSV | |
| 1.3 – Excel | — | |
| Firmware: | GitHub | GitHub |
| ZIP | — | |
| Render: | 1.0 – PNG | 2.2 – PNG |
| 1.2 – PNG | — | |
| 1.3 – PNG | — | |
| KiCad Project: | GitHub | GitHub |
Firmware:
The firmware for the packs is written in Arduino to reduce the development time and learning curve for new developers. The latest code can always be found at the Lafayette-FSAE Github or by specifically going to the PacMan Firmware Repository.
The Getting Started and further documentation is located on the Github’s README file (which is presented to the visitor when accessing the repo). A copy of the code & binary file from: April 14th, 2020 can be found directly here: PacManFirmware-master
Block Diagram:
Packman_Software _Block _Diagram
Test Plan:
Additional Electrical Documentation
- Display Tutorial: MP4
- Display Design 1.6: PNG
- Object Dictionary: XDD
- I2C Documentation: PDF
- Pre-built RaspberryPi Firmware w/ Arduino IDE & Firmware from 4/5/20: .7z File
- Fuse Calculations: PDF
