Experimental Validation of Model Predictive Charging Pressure and EGR Rate Control for an SI Engine

被引：0
|
作者：
Keller, Martin [1 ]
Geiger, Severin [2 ]
Gunther, Marco [2 ]
Pischinger, Stefan [2 ]
Abell, Dirk [1 ]
Albin, Thivaharan [3 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Automat Control, Campus Blvd 30, D-52074 Aachen, Germany
[2] Rhein Westfal TH Aachen, Inst Combust Engines, Forckenbeckstr 4, D-52074 Aachen, Germany
[3] Embotech AG, Technopk Str 1, CH-8005 Zurich, Switzerland
来源：
2020 IEEE CONFERENCE ON CONTROL TECHNOLOGY AND APPLICATIONS (CCTA) | 2020年
关键词：
D O I：
10.1109/ccta41146.2020.9206287
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Turbocharged spark-ignition (SI) engines with low pressure exhaust gas recirculation (EGR) offer a favorable potential to meet strict pollutant emission limits under realdriving conditions. While complex air path concepts with EGR are already state-of-the-art for diesel engines, the application for SI engines is still a topic of research. Due to the air-quantity-based engine load control as well as the potential occurrence of knocking combustion, a precise boost pressure and EGR rate control is decisive for a reliable operation. Within the scope of this paper, various model predictive control (MPC) concepts for turbocharged SI engines with EGR are proposed. For the evaluation, a prototype vehicle is equipped with a serial sequential turbocharging system as well as a low pressure EGR path. To control this overactuated multiple-input-multiple-output system with variable dead times, a linear as well as a nonlinear model predictive controller are developed. The benefit of utilizing a model of the EGR sensor dynamics within the observer is additionally examined. The control behavior is validated by performing tip-in tests with the vehicle on a test track. The results are evaluated considering overshoot, the time to reach the respective setpoints as well as steady-state accuracy.
引用
收藏
页码：415 / 422
页数：8
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