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Adaptive Air-Fuel Ratio Regulation for Port-Injected Spark-Ignited Engines Based on a Generalized Predictive Control Method

Author

Listed:
  • Lei Meng

    (School of Automation, Wuhan University of Technology, Wuhan 430070, China)

  • Xiaofeng Wang

    (Department of Electrical Engineering, University of South Carolina, Columbia, SC 29208, USA)

  • Chunnian Zeng

    (School of Automation, Wuhan University of Technology, Wuhan 430070, China)

  • Jie Luo

    (School of Automation, Wuhan University of Technology, Wuhan 430070, China)

Abstract

The accurate air-fuel ratio (AFR) control is crucial for the exhaust emission reduction based on the three-way catalytic converter in the spark ignition (SI) engine. The difficulties in transient cylinder air mass flow measurement, the existing fuel mass wall-wetting phenomenon, and the unfixed AFR path dynamic variations make the design of the AFR controller a challenging task. In this paper, an adaptive AFR regulation controller is designed using the feedforward and feedback control scheme based on the dynamical modelling of the AFR path. The generalized predictive control method is proposed to solve the problems of inherent nonlinearities, time delays, parameter variations, and uncertainties in the AFR closed loop. The simulation analysis is investigated for the effectiveness of noise suppression, online prediction, and self-correction on the SI engine system. Moreover, the experimental verification shows an acceptable performance of the designed controller and the potential usage of the generalized predictive control in AFR regulation application.

Suggested Citation

  • Lei Meng & Xiaofeng Wang & Chunnian Zeng & Jie Luo, 2019. "Adaptive Air-Fuel Ratio Regulation for Port-Injected Spark-Ignited Engines Based on a Generalized Predictive Control Method," Energies, MDPI, vol. 12(1), pages 1-19, January.
    • Handle: RePEc:gam:jeners:v:12:y:2019:i:1:p:173-:d:195201
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    Citations

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    Cited by:

    1. Lei Meng & Jie Luo & Xu Yang & Chunnian Zeng, 2019. "Intake Air Mass Observer Design Based on Extended Kalman Filter for Air-Fuel Ratio Control on SI Engine," Energies, MDPI, vol. 12(18), pages 1-12, September.
    2. Turki Alsuwian & Umar Riaz & Arslan Ahmed Amin & Muhammad Bilal Qadir & Saleh Almasabi & Mohammed Jalalah, 2022. "Hybrid Fault-Tolerant Control for Air-Fuel Ratio Control System of Internal Combustion Engine Using Fuzzy Logic and Super-Twisting Sliding Mode Control Techniques," Energies, MDPI, vol. 15(19), pages 1-27, September.

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