Projects


# Title Team Members TA Professor Documents Sponsor
1
Sound Asleep
Adam Tsouchlos
Ambika Mohapatra
Shub Pereira
Weiman Yan Rakesh Kumar presentation1.pdf
proposal1.pdf
2
Autonomous Car for WiFi Mapping
Avi Winick
Ben Maydan
Josh Powers
Jason Jung Arne Fliflet proposal1.pdf
3
Follow-Me Cart: App controlled smart assistant
Alex Huang
Jiaming Gu
Shi Qiao
Shengkun Cui Arne Fliflet other1.pdf
proposal1.pdf
4
Champaign MTD Bus Tracker Map
Amber Wilt
Daniel Vlassov
Ziad AlDohaim
Wesley Pang Arne Fliflet other1.pdf
proposal1.pdf
5
Navigation Vest Suite For People With Eye Disability
Haoming Mei
Jiwoong Jung
Pump Vanichjakvong
Rishik Sathua Cunjiang Yu proposal1.pdf
6
E-Bike Crash Detection and Safety
Adam Arabik
Ayman Reza
Muhammad Daniyal Amir
Eric Tang Arne Fliflet proposal1.pdf
7
Omnidirectional Drone
Dhruv Satish
Ivan Ren
Mahir Koseli
Jason Zhang Arne Fliflet proposal1.pdf
8
Hybrid Actuation Arm Exoskeleton
Alan Lu
Rubin Du
Haocheng Bill Yang Cunjiang Yu proposal1.pdf
9
Ant Weight 3-D Printed BattleBot
John Tian
Mig Umnakkittikul
Yanhao Yang
Gayatri Chandran Rakesh Kumar proposal1.pdf
10
NeuroBand
Arrhan Bhatia
Vansh Vardhan Rana
Vishal Moorjani
Wenjing Song Cunjiang Yu proposal1.pdf
11
Glove Controlled Drone
Aneesh Nagalkar
Atsi Gupta
Zach Greening
Wenjing Song Cunjiang Yu proposal1.pdf
12
New Generation Addiction Control and Recovery Device System with Absolute Safety and Privacy - working with the Drug Addiction Research Team
Adrian Santosh
Leo Li
Richawn Bernard
Shengyan Liu Cunjiang Yu proposal1.pdf
13
Sun Tracking Umbrella
Dora Stavenger
Megan Cubiss
Sarah Wilson
Wesley Pang Arne Fliflet proposal1.pdf
14
Enhanced Golf Rangefinder
Peter Maestranzi
Emma DiBiase
Jacob Hindenburg
Eric Tang Arne Fliflet presentation1.pdf
proposal1.pdf
15
Auto adjusted lighting system for room
Howard Li
Jihyun Seo
Kevin Chen
Zhuoer Zhang Arne Fliflet proposal1.pdf
16
Antweight Battlebot - Blade Blade
Jack Tipping
Patrick Mugg
Sam Paone
Gayatri Chandran Rakesh Kumar other1.pdf
presentation1.pptx
proposal1.pdf
proposal2.pdf
17
LED Persistence of Vision Globe
Gavi Campbell
Melvin Alpizar Arrieta
Owen Bowers
Gayatri Chandran Arne Fliflet other1.pdf
18
RFID Poker Board
Darren Liao
KB Bolor-Erdene
Satyam Singh
Eric Tang Rakesh Kumar proposal1.pdf
19
Suction Sense - Pitch Project
Hugh Palin
Jeremy Lee
Suleymaan Ahmad
Lukas Dumasius Cunjiang Yu other2.pdf
presentation1.pdf
proposal1.pdf
20
Glove controlled mouse with haptic feedback
Khushi Kalra
Vallabh Nadgir
Vihaansh Majithia
Frey Zhao Rakesh Kumar proposal1.pdf
21
MULTI-SENSOR MOTION DETECTOR FOR RELIABLE LIGHTING CONTROL
Joseph Paxhia
Lukas Ping
Sid Boinpally
Shiyuan Duan Cunjiang Yu proposal1.pdf
22
Adherascent
Dhiraj Dayal Bijinepally
Hardhik Tarigonda
Jonathan Liu
Shiyuan Duan Cunjiang Yu proposal1.pdf
23
Drink Dispensing Robot
Andrew Jung
Ethan Cao
Megan Cheng
Frey Zhao Rakesh Kumar proposal1.png
proposal2.png
proposal3.pdf
24
Autonomous Cylindrical Root Camera
Aidan Veldman
Nathaniel McGough
Zach Perkins
Rishik Sathua Rakesh Kumar proposal1.pdf
25
Auto-Guitar Tuner
Daniel Cho
Ritvik Patnala
Timothy Park
Eric Tang Rakesh Kumar proposal1.pdf
26
Orion Med
wenhao Zhang
XiangYi Kong
Yuxin Zhang
Zhuoer Zhang Rakesh Kumar proposal1.pdf
27
Team Heart Restart
Brian Chiang
Ethan Moraleda
Will Mendez
Frey Zhao Arne Fliflet proposal1.pdf
28
Real-time EEG Drowsiness Detection Device
Nikhil Talwalkar
Senturran Elangovan
Zhuoer Zhang Arne Fliflet proposal1.pdf
29
Modular Wafer Track for Semiconductor Fabrication
Hayden Kunas
Jack Schnepel
Nathan Pitsenberger
Shengyan Liu Rakesh Kumar proposal1.pdf
30
Transverse String Organ
Ash Huang
Eddy Perez
Kellen Sakaitani
Shengyan Liu Rakesh Kumar proposal1.pdf
31
NueroGaurd
Aidan Moran
Alexander Krejca
Stephen Simberg
Shiyuan Duan Cunjiang Yu other1.pdf
proposal1.pdf
32
Insight: Cardiovascular Screening Device
Ethan Pereira
Jay Nathan
Rishab Iyer
Weiman Yan Cunjiang Yu proposal1.pdf
33
Budget Clip-On Posture Checker
Ashit Anandkumar
Destiny Jefferson
Edward Ruan
Wenjing Song Cunjiang Yu proposal1.pdf

Active Cell Balancing for Solar Vehicle Battery Pack

Tara D'Souza, John Han, Rohan Kamatar

Featured Project

# Problem

Illini Solar Car (ISC) utilizes lithium ion battery packs with 28 series modules of 15 parallel cells each. In order to ensure safe operation, each battery cell must remain in its safe voltage operating range (2.5 - 4.2 V). Currently, all modules charge and discharge simultaneously. If any single module reaches 4.2V while charging, or 2.5V while discharging, the car must stop charging or discharging, respectively. During normal use, it is natural for the modules to become unbalanced. As the pack grows more unbalanced, the capacity of the entire battery pack decreases as it can only charge and discharge to the range of the lowest capacity module. An actively balanced battery box would ensure that we utilize all possible charge during the race, up to 5% more charge based on previous calculations.

# Solution Overview

We will implement active balancing which will redistribute charge in order to fully utilize the capacity of every module. This system will be verified within a test battery box so that it can be incorporated into future solar vehicles.

Solution Components:

- Test Battery Box (Hardware): The test battery box provides an interface to test new battery management circuitry and active balancing.

- Battery Sensors (Hardware): The current battery sensors for ISC do not include hardware necessary for active balancing. The revised PCB will include the active balancing components proposed below while also including voltage and temperature sensing for each cell.

- Active Balancing Circuit (Hardware): The active balancing circuit includes a switching regulator IC, transformers, and the cell voltage monitors.

- BMS Test firmware (Software): The Battery Management System requires new firmware to control and test active balancing.

# Criterion for Success

- Charge can be redistributed from one module to another during discharge and charge, to be demonstrated by collected data of cell voltages over time.

- BMS can control balancing.

- The battery pack should always be kept within safe operating conditions.

- Test battery box provides a safe and usable platform for future tests.