TEAM QUIETS2014

SAE CSC DESIGN PRESENTATION

Snowmobile Modifications Appeal to Snowmobile Enthusiasts Dealer’s Perspective Engine Control Strategy Emissions Control Noise Reduction Conclusion

Presentation content

Snowmobile Modifications Plug and Play Harness

Turbo Charged Engine

Modified Exhaust System

Catalytic Converter

EGR System

Appeal to Snowmobile Enthusiasts Poll results from the FCMQ (Fédération des

clubs de motoneigistes du Québec)

Reduction of irritating noise frequencies (namely 600, 700, 850 Hz)

Appeal to Snowmobile EnthusiastsGood Fuel Economy 1.95 GPH at 45 MPH = 23 MPG (4900

rpm)600 Ace Etec 600 Ace Turbo

Displacement 600 cc 600 cc 600 cc

Stroke 4 Stroke 2 Stroke 4 Stroke

Hp 60 121 80

Fuel Consumption 26 mpg 21 mpg 23 mpg

Appeal to Snowmobile Enthusiasts +19 hp for a total of 79 hp and 60 ft-lbs of torque

Appeal to Snowmobile Enthusiasts (follow up)

Dealer’s Perspective Bolt On System

Bolt on turbo and headers

Quick connect harness

Engine Control Strategy Closed loop AFR control

Engine Control Strategy (Follow up)

Lean burning combustion

Calculating SFC (g/kW-hr)

Engine Control Strategy (Follow up)

0.98 1.00 1.02 1.04 1.06 1.08 1.10365.00

370.00

375.00

380.00

385.00

390.00

395.00

400.00

SFC (@ 4900 RPM)

SFC (4900 RPM)

Lambda

SFC

(g/k

W-h

)

Emission Control Managing HC, CO and NOx emissions

Emission Control (Follow up) Three way catalytic converter efficiency

Emission Control (Follow up) EGR system development

Emission Control (Follow up) EGR System Intergration

325037504500475052505500200220240260280300320340360380400

1520

2530

3540

TPS

NOx quantity without EGR valve

15 20 25 30

35 40 TPS

RPM

Qty

NO

x (p

pm)

NOx (ppm)

TPS (%)

Emission Control (Follow up)

325037504500475052505500200220240260280300320340360380400

1520

2530

3540

TPS

NOx quantity with EGR valve activated

15 20 25 30 35

40 TPS

RPM

Qty

NO

x (p

pm)

NOx (ppm)

TPS (%)

Emission Control (Follow up)

1 2 3 4 50

50

100

150

200

250

300

350

400

450

0

1

2

3

4

5

6

5 Mode Emissions Testing

HCNOxCO

Test Mode

HC

and

NO

x (p

pm)

CO

(%

)

Final EPA Score 190

New exhaust system design

Noise Reduction

2013 2014

1

2

3

Noise Reduction (Follow up)

Targeted frequencys: 600Hz 750Hz 800Hz

Noise Reduction (Follow up)

Track Acoustic Improvements

Direct Injection

Drive by Wire Throttle

Clutch and Transmission Upgrade

Conclusion and Future Improvements

Thank You

Questions?