Duty Cycle Operation as a Possibility to Enhance the Fuel Economy of an SI Engine at Part Load

960229

02/01/1996

Event
International Congress & Exposition
Authors Abstract
Content
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.
Meta TagsDetails
DOI
https://doi.org/10.4271/960229
Pages
12
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.
Additional Details
Publisher
Published
Feb 1, 1996
Product Code
960229
Content Type
Technical Paper
Language
English