A fuzzy control approach for the adjustment of the boost pressure of a variable geometry, turbine (VGT) supercharged diesel engine is proposed. The VGT adapts the boost pressure to the target reference for different engine speeds by adjusting the turbine blades, resulting in a reduction of both fuel consumption and gas emissions, while preserving efficiency. We design an adaptive fuzzy control law according to the following steps: first, a standard PI controller is devised, then an equivalent fuzzy controller is built, finally the fuzzy controller is made nonlinear by tuning its input/output parameters using an optimization algorithm. Further, modification of the membership functions is investigated. A large number of simulations on a zero-dimensional model of the engine prove the effectiveness of the proposed control strategy with reference to stability and transient performance in comparison with standard PI techniques.
|Autori interni:||LINO, Paolo|
|Titolo:||Fuzzy Adaptive Control of a Variable Geometry Turbocharged Diesel Engine|
|Data di pubblicazione:||2002|
|Nome del convegno:||IEEE International Symposium on Industrial Electronics, ISIE 2002|
|Digital Object Identifier (DOI):||10.1109/ISIE.2002.1025977|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|