Flatness-based Feedforward and Feedback Control for Fuel Rail System of Gasoline Direct Injection Engine

被引：7
|
作者：
Liu, Q. -F. [1 ,2 ]
Wang, C. -Y. [2 ]
Hu, Y. -F. [2 ]
Chen, H. [1 ,2 ]
机构：
[1] Jilin Univ, State Key Lab Automot Simulat & Control, Changchun, Peoples R China
[2] Jilin Univ, Changchun, Peoples R China
来源：
IFAC PAPERSONLINE | 2016年 / 49卷 / 11期
关键词：
LEARNING CONTROL; MODEL;
D O I：
10.1016/j.ifacol.2016.08.113
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
For gasoline direct injection (GOD engines,obtaining desired rail pressure become a key prerequisite of fuel injection quantity precise control. Since improved control performance and robustness will translate into better combustion stability, fuel economy and emissions. This paper develops a feedforward-feedback controller based on a nonlinear model of fuel rail system, where nominal feedforward control is derived by differential flatness and fuel rail pressure is selected as fiat output. In feedback part, to simplify the design, the system is linearized on equilibrium point using Taylor series expansion, and Lyapunov method is used to ensure stability of closed-loop error system. Finally, the proposed controller is verified by fuel system simulation model established in AMESim software package, the simulation results in different pressure references demonstrate the effectiveness of the control system. (C) 2016, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.
引用
收藏
页码：775 / 780
页数：6
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