IMPACT OF THE MILLER CYCLE IN THE EFFICIENCY OF AN FVVT (FULLY VARIABLE VALVE TRAIN) ENGINE DURING PART LOAD OPERATION

2009-36-0081

10/06/2009

Event
SAE Brasil 2009 Congress and Exhibit
Authors Abstract
Content
In automotive application, spark ignition engines are, most of the time, part load operated, especially in city traffic and this is the most common operation situation of those engines.
By eliminating the throttle from load control, the fuel economy can be much improved. One already known mean of load control is the Miller cycle, implemented by valve timing variation.
In this paper, the part load efficiency of a two litter gasoline engine is compared and analyzed, using three different means of load control: late intake valve closure (LIVC), early intake valve closure (EIVC) and throttle.
Meta TagsDetails
DOI
https://doi.org/10.4271/2009-36-0081
Pages
5
Citation
França, O., "IMPACT OF THE MILLER CYCLE IN THE EFFICIENCY OF AN FVVT (FULLY VARIABLE VALVE TRAIN) ENGINE DURING PART LOAD OPERATION," SAE Technical Paper 2009-36-0081, 2009, https://doi.org/10.4271/2009-36-0081.
Additional Details
Publisher
Published
Oct 6, 2009
Product Code
2009-36-0081
Content Type
Technical Paper
Language
English