1. Group 9A: Jerry Dutreuil Joshua Guerra Matt Grywalski William Mehnert

2. Overview Project Objectives Phase Overview –Phase 1 –Phase 2 Bill of Materials Component Overview Software Flow Chart Program Logic Test Bed Nugget Chart Conclusion

3. Project Objective Convert a gasoline engine to operate on E85 without sacrificing fuel consumption, increasing performance and reducing emissions Provide a control system unit to manage the engine

4. Phase 1 Overview Evaluation of design approaches (different engines) Research of existing products Ignition timing is most important aspect of performance

5. Phase 2 Overview Areas of Technical Analysis –Ignition Timing –Explosion Limits –Emissions –Power/Torque

6. Bill of Materials Total = $3,279.50 ComponentFromPriceFunction Megasquirt (ECM)DIYAutotune.com$436Engine Control Exhaust temperaturelethaldiesel.com$78Timing Control Oxygen SensorSummitracing.com$200Air/Fuel Ratio Control Flex Fuel SensorGmpartsdirect.com$363Fuel Composition Fuel InjectorSummitracing.com$250Fuel adjustments EngineE-bay or other used parts market place $1200Testing DynamometerLocal performance shop$80/testTesting EmissionsLocal testing center$80/testTesting E85 FuelClosest E85 Station$2.75/GallonFuel Misc Sensors and Circuits Mouser.com or Digikey.com$165Control Circuits *Prices do not include taxes and shipping fees.

7. Component Overview Megasquirt – Standalone ECM –Allows for full programmability and control of all engine parameters –Allows for development of control algorithms

8. Component Overview EGT Sensor –Detects exhaust gas temperature (Chamber temperature) Oxygen Sensor, wideband -Detects air/fuel ratio

9. Component Overview Flex Fuel Sensor –Detects ethanol content in the fuel

10. Software Flow Chart ECM Exhaust Gases FFSFuel InjectorsIgnitionO2EGT

11. Program Logic Read FFS to determine ethanol content –Trim fuel table and timing table to compensate Read Oxygen Sensor –Trim fuel values to bring values back to stoichiometric or towards desired target Read EGT sensor –Trim timing values to adjust EGT temperatures to acceptable range and reduce emissions. Check throttle position –Adjust timing and fuel lookup tables to create power as demanded.

12. Test Bed Track of dyno – 24”-96” –Track of current SAE car - ~62” –Used to tune vehicle for power, torque, and emissions 5 Gas emissions testing

13. Nugget Chart

14. Conclusion With ignition timing, we will control the combustion in the cylinder chamber We will provide a kit that will enable someone to run on E85/gasoline blend The testing will consist of two identical runs; one with gasoline and one with E85 The results will be directly compared to determine to the differences in the theoretical values vs. the actual values.

15. Thank you Any Questions?

16. Reference www.change2E85.com www.megasquirt.info www.flextek.com www.e85fuel.com www.eere.energy.gov www.diablosport.com www.e85vehicles.com www.e85prices.com www.aa1car.com http://www.eng-tips.com/viewthread.cfm?qid=33615 http://www.engineeringtoolbox.com/explosive-concentration-limits-d_423.html http://www.allpar.com/fix/EPAMethods.html http://www.techedge.com.au/vehicle/wbo2/wblambda.htm Effect of Advanced injection timing on emission characteristics of diesel engine running on natural gas Effect of Ethanol-gasoline blends on engine performance and exhaust emissions in different compression ratio The effects of ethanol-unleaded gasoline blends and ignition timing on engine performance and exhaust emissions

17. Chemical Equilibrium Gasoline –C 8 H 18 +12.5(O 2 +3.76N 2 )  CO 2 +3H 2 O+12.5(3.76N 2 ) Ethanol –C 2 H 5 OH+3(O 2 +3.76N 2 )  2CO 2 +3H 2 O+3(3.76N 2 )

18. Formulas Used