Nonlinear observer-based control design and experimental validation for gasoline engines with EGR

This paper presents a nonlinear observer-based control design approach for gasoline engines equipped with exhaust gas recirculation (EGR) system. A mean value engine model is designed for control which includes both the intake manifold and exhaust manifold dynamic focused on gas mass flows. Then, th...

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Bibliographic Details
Published inControl theory and technology Vol. 17; no. 3; pp. 216 - 227
Main Authors Jiang, Weihai, Shen, Tielong
Format Journal Article
LanguageEnglish
Published Guangzhou South China University of Technology and Academy of Mathematics and Systems Science, CAS 01.08.2019
Springer Nature B.V
Department of Engineering of Science,Sophia University,Chiyoda-ku Tokyo 102-8554,Japan
Subjects
Complexity
Computational Intelligence
Control
Control and Systems Theory
Control stability
Control systems
Controllers
Design
Dynamic stability
Dynamical systems
Engineering
Engines
Exhaust gases
Exhaust systems
Feedback control
Gasoline engines
Intake manifolds
Liapunov functions
Mechatronics
Nonlinear control
Nonlinear feedback
Optimization
Robotics
Sensors
Systems Theory
Tracking control
Trucking industry
Lyapunov design
observer-based stabilizing control
exhaust gas recirculation (EGR)
Engine
stability
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Summary:This paper presents a nonlinear observer-based control design approach for gasoline engines equipped with exhaust gas recirculation (EGR) system. A mean value engine model is designed for control which includes both the intake manifold and exhaust manifold dynamic focused on gas mass flows. Then, the nonlinear feedback controller based on the developed model is designed for the state tracking control, and the stability of the close loop system is guaranteed by a constructed Lyapunov function. Since the exhaust manifold pressure is usually unmeasurable in the production engines, a nonlinear observer-based feedback controller is proposed by using standard sensors equipped on the engine, and the asymptotic stability of the both observer dynamic system and control dynamic system are guaranteed with Lyapunov design assisted by the detail analysis of the model. The experimental validations show that the observer-based nonlinear feedback controller is able to regulate the intake pressure and exhaust pressure state to the desired values during both the steady-state and transient conditions quickly by only using the standard sensors.
ISSN:2095-6983
2198-0942
DOI:10.1007/s11768-019-8212-8