Fuel Effects on Particulate Matter Emissions Variability from a Gasoline Direct Injection Engine

2018 ◽  
Author(s):  
Manuel J.M.G. Ramos ◽  
James S. Wallace
Keyword(s):  
Particulate Matter ◽  
Direct Injection ◽  
Gasoline Direct Injection ◽  
Direct Injection Engine ◽  
Gasoline Direct Injection Engine ◽  
Particulate Matter Emissions ◽  
Fuel Effects

Model-based computational intelligence multi-objective optimization for gasoline direct injection engine calibration

2018 ◽  
Vol 233 (6) ◽  
pp. 1391-1402 ◽  
Author(s):  
He Ma ◽  
Ziyang Li ◽  
Mohamad Tayarani ◽  
Guoxiang Lu ◽  
Hongming Xu ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Fuel Consumption ◽  
Computational Intelligence ◽  
Direct Injection ◽  
Gasoline Direct Injection ◽  
Multi Objective Optimization ◽  
Direct Injection Engine ◽  
Engine Calibration ◽  
Gasoline Direct Injection Engine ◽  
Calibration Approach

For modern engines, the number of adjustable variables is increasing considerably. With an increase in the number of degrees of freedom and the consequent increase in the complexity of the calibration process, traditional design of experiments–based engine calibration methods are reaching their limits. As a result, an automated engine calibration approach is desired. In this paper, a model-based computational intelligence multi-objective optimization approach for gasoline direct injection engine calibration is developed, which can optimize the engine’s indicated specific fuel consumption, indicated specific particulate matter by mass, and indicated specific particulate matter by number simultaneously, by intelligently adjusting the engine actuators’ settings through Strength Pareto Evolutionary Algorithm 2. A mean-value model of gasoline direct injection engine is developed in the author’s earlier work and used to predict the performance of indicated specific fuel consumption, indicated specific particulate matter by mass, and indicated specific particulate matter by number with given value of intake valves opening timing, exhaust valves closing timing, spark timing, injection timing, and rail pressure. Then a co-simulation platform is established for the introduced intelligence engine calibration approach in the given engine operating condition. The co-simulation study and experimental validation results suggest that the developed intelligence calibration approach can find the optimal gasoline direct injection engine actuators’ settings with acceptable accuracy in much less time, compared to the traditional approach.

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