1. DARSI 2 CDR Adrienne Baile Preston Schipper Matt Hulse Project Overview Components: Design Status Administrative Data Acquisition & Real-time System Integration Presentation Outline:

2. DARSI: Project Overview Sensors Data Collection Data Storage Data Display Traction Control CAN Network Data Processing System

3. Where Are We Now? Surface Mount Components Multi sensor ability added to data collection boards Surface mount PCB’s in development Traction Control Control system modeled Engine control revisited CAN Bus Master CAN library packaged Expanding data frame capabilities LCD Wire-wrapped prototype Functioning code Investigating off chip memory configuration

4. Surface Mount Status: Shipping Multi-Sensor Board Multiple sensor hook-ups Utilizing 3 more A/D conversion pins on PIC18F258 Deutsch Weatherproof 4 pin PCB connectors for CAN/Power and 6 pin PCB connector for all 4 sensors Data Storage Board Status: Shipping PIC18F458 TQFP for surface mount Deutsch Weatherproof 4 pin PCB connectors for CAN/Power

5. Final Dimensions: Multi-Sensor Unit: 2” x 2” Data Storage Unit: 2” x 4” LCD Control Unit: 2.95” x 2.07” Surface Mount Details

6. LCD Module Real-time display of important data traveling over CAN bus to driver Menu interface with screen selections Current display highlighted on bottom Status: Prototype Board - Code Testing

7. LCD Components Crystal Fontz LCD CFAG12864B-TMI-V PIC18F458 Microcontroller STMicroelectronics Serial Flash Storage Status: Components on Order Need ~5kB of storage M45PE20-VMN6P 2 Mbit Storage SPI serial communication supported by PIC Maxim MAX3002 bi-directional octal level translator

8. LCD Code Code Status: Final Testing LCD Memory Layout

9. LCD Code LCD Timing Code Status: Final Testing

10. Traction Control System Block Diagram Ducatti Motorcycle System Engineer helping with control system model Block Diagram Control Status: Code Development

11. Traction Control System Control Scheme ECU Ignition Control FSAE Rule Conditions The rules specify that a purely mechanical throttle body must be used for safety reasons A second throttle body can be used in series that is electronically controlled using a stepper motor

12. Traction Control Code Determine Wheel Slip (rear rate / front rate) >= 1.03 is the starting point for wheel slip Stepper Controller When no wheel slip occurs keep stepper throttle open When slip occurs vary throttle based on calculated control Calculate Throttle Control and Ignition Timing Adjustment If slip occurs move stepper to mechanical throttle position Increment further closed based on the amount of wheel slip Introduce ignition timing changes based on car velocity This last piece will require lots of testing on the car to find acceptable rates of throttle control

13. Bus Master Module Status: Enhancing Code Can Functions: breakdown enable_CAN_transmit disable_CAN_transmit configure_CAN_controller check_data_req request_send can_send can_receive Features & Capability: No longer need main storage module to regulate CAN functions No longer need central power distribution Ultimate Goal: CAN discovery and dynamic build-up of sensor network Fallback Goal: CAN bus master still implement-able on any board

14. Parts List Development Environment: Microchip MPLab IDE version 7.31 PICStart Plus! Programmer / ICSP Development Kit

15. Labor & Responsibilities Adrienne: Circuit Schematics PCB Designs Matt: Software Development Multi Sensor Units LCD Control Logic CAN Bus Master Preston: LCD Display Logic Traction Control

16. Milestone Goals Milestone 1 Goals: Complete surface mount PCB’s for data collection and logger LCD – testing PCB and code TCS – attempt to install on FSAE car Continuing to develop code package CAN renovations in testing Milestone 2 Goals: Creating LCD enclosure Complete data collection and logger enclosures Final testing of TCS Finalize PC interface Complete CAN Update

17. Schedule: CDR  Expo

18. Questions & Answers Thank you