1. UNH Precision Racing Data Acquisition, Telemetry and Analysis
Thomas Kimsey, Kyle Steike

2. Presentation Overview
Related Courses
Introduction
Competition Overview
Rules
Scoring
Previous Results
Performance Measurements
Problem
Solution
General System Overview
System Core
Sensors
Wireless Communication
Data Analysis Software
Overview
Interface
Current Progress
What Needs to be done
System Cost
Cost Details
Unexpected Cost
Sponsorship
Contact

3. Related Courses Data Analysis Software Circuitry
CS 415, 416, 515, 516
Circuitry
ECE 541, 548
Microcontroller & Digital System
ECE 543, 562, 649
Signals and Communication
ECE 603, 633, 714

4. Introduction
The Formula SAE racing series is put on by the Society of Automotive Engineers (SAE)
A competition that allows students across the globe to design, build, test, and market small, single seat, open wheel racing cars
The University of New Hampshire (UNH) Precision Racing Team is a Formula SAE team
It is comprised of students studying
Mechanical engineering
Electrical and Computer engineering
and Business

5. Competition Overview - Rules
Force the team to be run like a business
Full documentation required including
Manufacturing cost
Design methodologies
Sales pitch
Cost and design review
All of these materials are to be presented with the vehicle at competition

6. Competition Overview - Scoring
Racing Points
Skid pad – 50 pts.
Acceleration – 75 pts.
Autocross – 150 pts.
Endurance – 300 pts.
Fuel Economy – 100 pts.
Presentation Points
Design – 150 pts.
Marketing – 75 pts.
Cost Report – 100 pts.
Static Tests – Not graded
Tilt Table
Brake Check
Sound Check
Tech Inspection
Total = 1000 pts.

7. Previous Results
Several FSAE competitions are held globally each year; the most prestigious being Formula SAE Michigan
UNH has participated the past nine years at the Michigan event
This past year the UNH Precision Racing Team placed 32nd out of 120 engineering universities

8. Performance Measurements – The Problem
Factors that dictate performance and reliability of the car are becoming harder to observe by the human eye
Thousands of events happen per second that dictate the dynamic performance of the car
To set up the car to reach its performance potential these events need to be measured, recorded, and analyzed.

9. Performance Measurements – The Solution
An advanced, high speed electronics package is being added to the design of the car
Fifty sensors will measure and record the many dynamic parameters associated with a precision racing vehicle
Analysis of this data enables the team to make adjustments with the car to improve the vehicles performance and durability

10. General System Overview

11. System Core
The proposed data acquisition system is centered around a Cypress PSoC 5
Control data measurement, storage and transmission of data
Communicate with the car's sensor network, engine control unit, dashboard, and various other systems
Data recorded is stored on a SD card for future analysis
Data is also transmitted in real time via a 900MHz XBee radio module
Due to limited bandwidth, live data will have a lower measurement frequency than data stored on the SD card

12. Sensors Used to measure parameters such as
Suspension position
Acceleration
Vehicle speed
Data from these sensors will be used to
Make adjustments to vehicle handling
Train drivers in proper technique
Provide early warning and diagnostic information pertaining to vehicle problems

13. Wireless Communication
A Digi XBee wireless network
Transfer live vehicle data
Digi XBee Pro 900 MHz modules
Output power of 50 mW
Duck style RPSMA antennas
Range of ~1/2 mile line of sight
Data rates up to 156 Kbps
Used to program the engine control unit wirelessly

14. Data Analysis Software - Overview
Custom software package written in Java
Functionality includes ability to
Plot, analyze and review live and recorded data
Video playback
GPS Tracking System

15. Data Analysis Software - Interface

16. Current Progress
Currently many of the key functions of the system have been tested and verified
Early version of the analysis software
Video playback
Synchronization of static plots and video play-back
Communication with engine control unit and XBee wireless link
Live graphs and data tables update dynamically
After-run statistics for each sensor available
Average and maximum values for each

17. What Needs To Be Done There is still a lot left to do!
Sensors need to be added to the car
Data Analysis software needs to
Read data from the “to be added” sensors
Add more graphs and rows to data table for new sensors
Implement GPS track plotting
Digital Filter implementation for SD card data files
Car needs to be wired after it is built
Secure more sponsorships
Money is a necessity!

18. System Cost
The estimated cost for the project is $3,845. The budget is broken down as shown below.

19. Shock Position Sensors
Cost Details
Name
Quantity
Cost per Unit
Total Cost
GPS 1
$100
Radios 2
$50
Antennas
$20
$40
PCB Fabrication 10
$25
$250
Shock Position Sensors 6
$200
$1,200
Accelerometers
$15
$30
Gyroscope
$35
$70
Brake Pressure Sensor
Tire Temp Sensors 12
$180

20. Steering Position Sensor
Cost Details
Name
Quantity
Cost per Unit
Total Cost
Brake Temp Sensors 4
$15
$60
Steering Position Sensor 1
$50
Connectors 30
$20
$600
Wheel Speed Sensors
$100
$400
Wiring
$300
Dashboard
$125
SD Card 2
$40
Misc. Ics
100 $2
$200
Total
$3,845

21. Sponsorship
Efforts are being made to acquire donations of cash and material goods
Sponsorship package was established and is being distributed
Trying to raise $45,000 for team
$5,000 for electrical package

22. Contact Web Address: www.unh.edu/fsae
Facebook:
Thomas P Kimsey
Phone: (908)
Computer Engineering Senior
Technical Captain
Kyle W Steike
Phone: (845)
Electronics Member