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This paper presents an economic model predictive control (eMPC) controller for the diesel engine airpath. The control objective is to maximize fuel economy while maintaining drivability and reducing emissions by manipulating the exhaust gas recirculation (EGR) valve, throttle, variable geometry turbine (VGT), and the fueling rate. This is achieved using a cascaded architecture wherein an upper level...
Current control implementations for engines are proving unwieldy for emerging emissions standards and fuel economy demand. Calibration is becoming progressively more complex as the number of controlled variables increases. The issues are acute with diesels. We describe a project in which a detailed investigation of the fuel path dynamics in a modern engine is made. This is an initial work about diesel...
In order to study and improve the emission performance of WCS/diesel DFE, an emission model for DFE based on radial basis function neural network was developed which was a black-box input-output training data model not require priori knowledge .Studies showed that the predicted results accorded well with the experimental data over a large range of operating conditions from low load to high load. And...
Air management process in a turbocharged diesel engine is a multivariable, highly coupled nonlinear system with fast dynamics. Because of this, control algorithms with reasonably low computation times (enabling real time application) must be used. Furthermore, testing of new algorithms on a real engine is expensive. Therefore, a detailed non-linear engine simulator based on a first principles model...
The air path of an internal combustion engine is a classical example of MIMO system with actuator constraints and high dynamic requirements. While the classical approach consists in using simple, decoupled heuristic controllers and empirical limitations, this paper proposes to state the problem in terms of an optimal control problem with input constraints and to solve it in a model based environment...
A systems approach to modeling the response of brake torque and NOx emissions of a high-speed common-rail diesel engine to combined excitations in fuel quantity and timing is investigated. A multivariate mean-value model is proposed, identified and validated. The model structure is derived from and extends an existing physical model (Jankovic, E., et al., 1998), (Upadhyay, D, et al, 2002). This model...
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