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