Grading Scheme :: ECE 445 - Senior Design Laboratory

Grading Scheme

 

The grading scheme for the course, as well as links to specific requirements for each assignment/deliverable and evaluation sheets, are given in the table below. Due dates for each assignment/deliverable can be found on the course Calendar. Please note:

Below is the points breakdown for all assignments/deliverables for the course, sorted chronologically:

Item Team / Individual Score Points Evaluation Sheet**
Initial Post Individual 5  
Lab Notebook Individual 50 PDF
Lab Safety Training Individual Lab Access  
CAD Assignment Individual 10 PDF
Soldering Assignment Individual 10
Request for Approval Team 5  
Weekly TA Meetings      
Project Proposal Team 25 PDF
Team Contract Team 10  
Design Document
Requirements and Verification
Team 40 PDF
Design Review * Team 20 PDF
Board Review      
Individual Progress Report Individual 25
Mock Demo Individual 5  
Mock Presentation Individual 5  
Final Demo * Team 150 PDF
Final Presentation * Individual 50 PDF
Final Report: Technical Team 30 PDF
Final Report: English/Format Team 20 PDF
Checkout     PDF
Contract Fulfillment Team 20  
Continuing your project   Priceless  

* Grades for these will be the average of the TA and Instructor grades; peer review grades will be used to provide feedback.
** Evaluation Sheets are subject to minor changes.

Low Cost Distributed Battery Management System

Logan Rosenmayer, Daksh Saraf

Low Cost Distributed Battery Management System

Featured Project

Web Board Link: https://courses.engr.illinois.edu/ece445/pace/view-topic.asp?id=27207

Block Diagram: https://imgur.com/GIzjG8R

Members: Logan Rosenmayer (Rosenma2), Anthony Chemaly(chemaly2)

The goal of this project is to design a low cost BMS (Battery Management System) system that is flexible and modular. The BMS must ensure safe operation of lithium ion batteries by protecting the batteries from: Over temperature, overcharge, overdischarge, and overcurrent all at the cell level. Additionally, the should provide cell balancing to maintain overall pack capacity. Last a BMS should be track SOC(state of charge) and SOH (state of health) of the overall pack.

To meet these goals, we plan to integrate a MCU into each module that will handle measurements and report to the module below it. This allows for reconfiguration of battery’s, module replacements. Currently major companies that offer stackable BMSs don’t offer single cell modularity, require software adjustments and require sense wires to be ran back to the centralized IC. Our proposed solution will be able to remain in the same price range as other centralized solutions by utilizing mass produced general purpose microcontrollers and opto-isolators. This project carries a mix of hardware and software challenges. The software side will consist of communication protocol design, interrupt/sleep cycles, and power management. Hardware will consist of communication level shifting, MCU selection, battery voltage and current monitoring circuits, DC/DC converter all with low power draws and cost. (uAs and ~$2.50 without mounting)