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A new air-fuel ratio model fixing the transport delay: Validation and control

Abstract : Air-fuel ratio control is a crucial problem for engine control since it is one of the most important issues related to pollution reduction. The main difficulty in air-fuel ratio control is the time-varying delay. We propose a new model that includes the delay. This model is identified using real dataset from an engine test bench. The time-varying delay is made constant by using a change of domain. The nonlinearities of the model are handled with the Takagi-Sugeno representation and a linear controller is designed using the Lyapunov direct method. Simulation results highlight the efficiency of the proposed approach compared to classic maps-based controllers.
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https://hal-uphf.archives-ouvertes.fr/hal-03415142
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Submitted on : Thursday, November 4, 2021 - 6:07:50 PM
Last modification on : Friday, November 5, 2021 - 4:22:56 AM

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Thomas Laurain, Zsofia Lendek, Jimmy Lauber, Reinaldo Martinez Palhares. A new air-fuel ratio model fixing the transport delay: Validation and control. IEEE Conference on Control Technology and Applications (CCTA), Aug 2017, Mauna Lani Resort, United States. pp.1904-1909, ⟨10.1109/CCTA.2017.8062734⟩. ⟨hal-03415142⟩

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