Study on Model Based Combustion Control of Diesel Engine with Multi Fuel Injection

13th International Conference on Motion and Vibration Control; 12th International Conference on Recent Advances in Structural Dynamics

Ikemura, R.^1 ; Yamasaki, Y.^1 ; Kaneko, S.^1

Department of Mechanical Engineering, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, Japan^1

关键词: Calculation speed;    Combustion control;    Combustion model;    In-cylinder pressures;    Injection patterns;    Model based controls;    Physical equations;    Prediction accuracy;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/744/1/012103/pdf
DOI  :  10.1088/1742-6596/744/1/012103

来源: IOP

【 摘 要 】

A controller for model-based control of diesel engine with triple injection were developed with a combustion model. In the combustion model, an engine cycle is discretized into several representative points in order to improve calculation speed, while physical equations are employed to expand the versatility. The combustion model can predict in-cylinder pressure and temperature in these discrete points. Prediction accuracy of the combustion model was evaluated by comparison with experimental result. A controller was designed with the combustion model in order to calculate optimal fuel injection pattern for controlling in-cylinder pressure peak timing. The controller's performance was evaluated through simulation in which the combustion model was used as a plant model.