Team 70: Electric Vehicle
Team Members◦ Brock Barras◦ Josh Day◦ Matt Griffin◦ Andrew Phegley◦ Nathan Smith◦ Alex Turek
Project Manager: Josh Day Faculty Advisors
◦ Narayanan Ramachandran (Sai), Power◦ Haibo Wang, Controls
Team 70 Personnel
Executive Summary: Josh Day
Power System Description: Brock Barras
Control System Description: Matt Griffin
Work Completion Status: Andrew Phegley
Resources: Andrew Phegley
Summary: Nathan Smith
Outline
The Problem?◦ Rising Gas Prices◦ Increased Dependency on Foreign Oil
The Solution◦ Electric Vehicle
So What?◦ Unique Drive System
Executive Summary
Fully Functional Electric Vehicle
Operation Manual
Deliverables
Power Component Subsystem◦ Brock Barras◦ Josh Day
Battery Management Subsystem◦ Andrew Phegley◦ Nathan Smith
Control Subsystem◦ Matt Griffin◦ Alex Turek
System Integration◦ Josh Day
Designation of Responsibility
~$23,000
Total Project Cost
Simplified Block Diagram
Battery Management
Subsystem
Control Subsystem
Power Component Subsystem
Powered by Lithium Iron Phosphate Batteries◦ Dedicated Battery Management System
Dual three phase 30HP induction motors◦ Driven by Variable Frequency Drives (VFDs)
Energy Recapture System◦ Recaptures energy lost during hard braking
Power System Description
Programmable Logic Controller◦ Monitors the following:
Wheel speeds Throttle pedal position Steering wheel angle Vehicle Velocity
◦ Provides the VFDs a run command
Control System Description
Completed Work◦ Purchased Chassis
Repair/Modify Chassis◦ Acquired Major Electrical Components
VFDs Motors PLC HMI
◦ Began testing VFDs and motors Plans for Completion
Work Completion Status
Activity 31-Oct 7-Nov 14-Nov 21-Nov 28-Nov 5-Dec 12-Dec 19-Dec 26-Dec 2-Jan 9-Jan 16-Jan 23-Jan 30-Jan 6-Feb 13-Feb 20-Feb 27-Feb 5-Mar 12-Mar 19-Mar 26-Mar 2-Apr 9-Apr 16-Apr 23-Apr 30-AprSubsystem Experiments
Project Proposal
Design Reviews
Order Parts
Subsystem Construction
Subsystem Testing
System Integration
System Testing
Progress Reports
Chassis Preparation
Chassis Modifications
Test Fittings
Disassemble/Paint
Reassemble/First Test Run
Design Reports
Poster
Notebooks
LEGEND: AS BID AS BUILTActivityMilestone
Christmas BreakFall 2011 Spring 2012
Reserved Time to fix the Inevitable
Item Stock Status Qty. Price (ea.) Price (tot)Baldor Motor on hand 2 $2,500.00 $5,000.00Frenic VFD on hand 2 $2,000.00 $4,000.00AB PLC on hand 1 $700.00 $700.00AB HMI on hand 1 $2,400.00 $2,400.00Battery Cells order item 100 $60.00 $6,000.00Chassis order item 1 $450.00 $450.00Gyroscope order item 1 $20.00 $20.00Accelerometer order item 1 $30.00 $30.00Wire on hand as required $1,000.00
Brake Components order item 2 $75.00 $150.00Main Disconnect order item 1 $150.00 $150.00
Pre-charge contactor order item 2 $100.00 $200.00
Pre-charge resistor order item 2 $10.00 $20.00Seats order item 2 $75.00 $150.00Seat belts order item 2 $40.00 $80.00Photo sensor order item 2 $15.00 $30.00BMS order item 1 $1,800.00 $1,800.00 Total Cost: $22,180.00
Resources
Design/Build Electric Vehicle◦ Independent rear wheel drive◦ Capable of regenerative braking◦ Recharge at home
Plan to finish mid-March Resources Needed
◦ Batteries, Charging components◦ Battery Management System
Summary