Iowa State University Clean Snowmobile Challenge

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Presentation transcript:

Iowa State University Clean Snowmobile Challenge

Agenda Season Summary Accomplishments Areas of Improvement Testing Baseline Cold Start Innovations Areas of Improvement Timeline Management Team Lead Positions

Season Summary Snowmobile: 2018 Arctic Cat ZR 7000 Sno Pro Strategy: Prioritize reducing noise pollution Approach: Research potential projects Solidify season project(s) Conduct baseline testing Design innovations Manufacture & Implement innovations Conduct final testing

Baseline Testing - Noise Procedure: SAE J116 Instrumentation: MTS Systems sound meter Results: target range of 31.5 - 1000 Hz

Baseline Testing - Emissions Procedure: EPA 40 CFR Part 1051 (Ramped Modal Cycle) Instrumentation: Bridge 5 gas analyzer Results: Calculated E-Score: 120.65

Cold Start Testing Procedure: Test 3 days consecutively Day 1 = -10 ℉ Results: Faulty stock battery – 75% charge, 280/310 total crank amps

Innovations Exhaust Additional bogey wheels ECU Mufflers Pipe routing Catalyst Heat shielding Additional bogey wheels 3D printed support arm ECU G4+ Link Fury Throttle Body Restrictors

Mufflers

Pipe routing, Catalyst, Heat shielding 304 Stainless Steel 45 & 90 degree mandrel bends, straight section Custom bent section Flanges & gaskets Aristo Intelligent Catalyst Technologies 3-way oxidation with inner proprietary coating Full contain design 16 ga. mild steel 2300 ℉ ceramic heat blanket Heat wrap

Additional Bogey Wheels 3D printed upper tension arm Printed at Viking Pump with Markforged 3D printer chopped carbon fiber (“Onyx”) & reinforced fiberglass Additional set of bogey wheels on lower skid rail

ECU G4+ Link Fury Complete stand alone Custom wiring harness

Time Line Management October 14th - Initial baseline testing completed October 20th - Begin innovation design and integration December 17th - Final design selected for additional team designed muffler January 19th - Begin ECU tuning February 3rd - All innovations fully integrated and tuned, sled is competition ready

Chassis and Suspension Team Lead Team Lead Positions Iowa State SAE Engine Team Lead Exhaust Team Lead Testing Team Lead Chassis and Suspension Team Lead Outreach Team Lead Safety Officer Project Director Tech Director New positions to incorporate Selection based off of passion and available time rather than knowledge

Citations SAE International. “2019_SAE_CSC_rules_FINAL_Draft_10.5.2018.Pdf.” SAE International, 2018.