Integration of Hybrid-Electric Strategy to Enhance Clean Snowmobile Performance

Autor: Eric Schroeder, Glenn R. Bower, Ethan K. Brodsky, Adam R. Schumacher
Rok vydání: 2006
Předmět:
Zdroj: SAE Technical Paper Series.
ISSN: 0148-7191
DOI: 10.4271/2006-32-0048
Popis: The University of Wisconsin-Madison Snowmobile Team has designed and constructed a hybrid-electric snowmobile for entry in the 2005 Society of Automotive Engineers’ Clean Snowmobile Challenge. Built on a 2003 cross-country touring chassis, this machine features a 784 cc fuel-injected four-stroke engine in parallel with a 48 V electric golf cart motor. The 12 kg electric motor increases powertrain torque up to 25% during acceleration and recharges the snowmobile’s battery pack during steady-state operation. Air pollution from the gasoline engine is reduced to levels far below current best available technology in the snowmobile industry. The four-stroke engine’s closed-loop EFI system maintains stoichiometric combustion while dual three-way catalysts reduce NOx, HC and CO emissions by up to 94% from stock. In addition to the use of three way catalysts, the fuel injection strategy has been modified to further reduce engine emissions from the levels measured in the CSC 2004 competition. The entire hybrid drivetrain including battery pack and a twostage muffler is packaged in a manner that maintains the snowmobile’s aggressive OEM appearance.
Databáze: OpenAIRE