Duty Cycle Operation as a Possibility to Enhance the Fuel Economy of an SI Engine at Part Load 960229
The potential of Duty Cycle Operation (DCO) of a Spark Ignited (SI) engine on part load has been investigated. DCO keeps an engine running at full throttle in a stop and go mode to speed up a flywheel as a short time energy storage device. So the actual power demand is covered by the flywheel instead of the convenient direct power transfer from the engine. This work includes the calculation of the theoretical potential and preliminary results of a test setup.
The results show a clear advantage of fuel consumption at the engine's low power output. The potential of DCO has proved to be higher than that of variable intake valve timing.
Citation: Ender, M. and Dietrich, P., "Duty Cycle Operation as a Possibility to Enhance the Fuel Economy of an SI Engine at Part Load," SAE Technical Paper 960229, 1996, https://doi.org/10.4271/960229. Download Citation
Author(s):
Martin Ender, Philipp Dietrich
Affiliated:
Swiss Federal Institute of Technology
Pages: 12
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Strategies in Electric and Hybrid Vehicle Design-SP-1156
Related Topics:
Spark ignition engines
Fuel consumption
Fuel economy
Flywheels
Throttles
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »
