The Application of Design of Experiments and 1-D Simulation to Create a Rapid Concept Optimisation Tool for I4 Engines 2005-01-0226
This paper describes a method for the rapid generation of a first estimate of engine tuning parameters for a 4-cylinder naturally aspirated spark ignition engine. These parameters involve the primary lengths and diameters of the intake and exhaust systems. These variables were optimised for peak power over a range of different speeds and for different engine capacities.
A 4-cylinder engine was modelled in GT-Power, a one-dimensional engine cycle simulation package. All the above variables were included in the model and a number of assumptions made about the base engine design for each optimisation point. A range of values for all the variables were analysed within a DOE matrix. The resulting response surfaces can be used to give approximate tuning dimensions to provide a starting point for packaging studies and more detailed simulations immediately on commencing a new project.
Citation: Ioannou, M., Gurney, D., and Downing, J., "The Application of Design of Experiments and 1-D Simulation to Create a Rapid Concept Optimisation Tool for I4 Engines," SAE Technical Paper 2005-01-0226, 2005, https://doi.org/10.4271/2005-01-0226. Download Citation
Marios Ioannou, David Gurney, Jonathan Downing
Cosworth Technology Ltd
SAE 2005 World Congress & Exhibition
Modeling of SI and Diesel Engines 2005-SP-1969