Applying variable valve Actuation systems is one of the most effective ways to improve specific fuel consumption in an engine, which largely affect the pumping work. In this article determination of optimum valve timing angels, using approximation of discrete data and nonlinear regression analysis is investigated for a HD diesel engine to minimize SFC. In the first part of this study a model of compression ignition engine (OM457) in GT-SUITE software are applied for optimization. Then the indicated best angels for EVO, IVO, EVC and IVC were added to the model as lookup tables to shape the VVT system. Eventually, results indicated that using VVT angles the SFC parameter decreases more than 2% in average. Furthermore, to compare differences in emissions rate, the European stationary cycle (ESC) was applied and generated NOx pollutant was reduced 7.4%.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.