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TEAM QUIETS 2014 SAE CSC DESIGN PRESENTATION. Presentation content. Snowmobile Modifications Appeal to Snowmobile Enthusiasts Dealer’s Perspective Engine Control Strategy Emissions Control Noise Reduction Conclusion. Snowmobile Modifications. Plug and Play Harness
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Presentation content • Snowmobile Modifications • Appeal to Snowmobile Enthusiasts • Dealer’s Perspective • Engine Control Strategy • Emissions Control • Noise Reduction • Conclusion
Snowmobile Modifications • Plug and Play Harness • Turbo ChargedEngine • ModifiedExhaust System • CatalyticConverter • EGR System
Appeal to SnowmobileEnthusiasts • Poll results from the FCMQ(Fédération des clubs de motoneigistes du Québec) • Reduction of irritating noise frequencies (namely 600, 700, 850 Hz)
Appeal to SnowmobileEnthusiasts Good Fuel Economy • 1.95 GPH at 45 MPH = 23 MPG (4900 rpm)
Appeal to SnowmobileEnthusiasts • +19 hp for a total of 79 hp and 60 ft-lbs of torque
Dealer’s Perspective • Bolt On System Bolt on turbo and headers Quick connectharness
Engine Control Strategy • Closedloop AFR control
Engine Control Strategy (Follow up) • Lean burning combustion • Calculating SFC (g/kW-hr)
Emission Control • Managing HC, CO and NOxemissions
Emission Control (Follow up) • Threewaycatalyticconverterefficiency
Emission Control (Follow up) • EGR system development
Emission Control (Followup) EGR System Intergration
Emission Control (Followup) Final EPA Score 190
Noise Reduction • New exhaust system design
Noise Reduction (Follow up) Targetedfrequencys: 600Hz 750Hz 800Hz
Conclusion and Future Improvements • TrackAcousticImprovements • Direct Injection • Drive by WireThrottle • Clutch and Transmission Upgrade
Thank You Questions?