
Sébastien Delprat
- INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France)
- Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH)
- Université Polytechnique Hauts-de-France (UPHF)
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sebastien-delprat
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0000-0002-6860-0278
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060313080
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194869651
- ISNI : 0000000357161916
- ResearcherID : A-2528-2010
Présentation
My Main Research Theme
My main research focus has historically been centered on the energy optimization of systems. It extends to several applications, such as trajectory optimization in transportation and active wake control.
In simulations, generating a state trajectory for the energy management of a hybrid vehicle involves solving an optimal control problem under state constraints (such as battery state-of-charge limits), with both discrete controls (gear selection, internal combustion engine on/off) and continuous controls (torque/power distribution between the internal combustion engine and the electric machine) to determine the minimum achievable energy consumption for a given vehicle on a predefined route.
As part of a collaboration with TU Eindhoven (Netherlands), a study highlighted the existence of an infinite number of optimal solutions for a particular case when (specific conditions needed here), and when (specific conditions needed here) are piecewise linear functions. This is the case when fuel consumption and/or the electric machine's power is computed via interpolation in efficiency maps.
The PhD thesis of M. Sanchez Pantoja, defended in December 2020, focused on the use of external penalty functions.
Shift Towards Electrification and Sustainable Transport
The abrupt transition imposed on manufacturers toward vehicle electrification has led me to redirect my research activities toward locally clean transportation solutions. These efforts are partly carried out through multidisciplinary cross-cutting activities with the Mechanics department.
Active Wake Control for Automobiles
The first research focus is active wake control for automobiles. This work involves a collaboration between fluid mechanics specialists and control engineers, aiming to reduce vehicle energy consumption by minimizing aerodynamic drag through active control. My primary contribution lies in control techniques and my expertise in automotive applications.
In this context, a demonstrator equipped with actuators (pulsed air jets) has been developed, as shown in Figure 3 (Twingo vehicle). This figure illustrates the approach adopted. The scientific and technological challenges are numerous, ranging from the absence of exploitable models for control to the development of specific actuators.
The initial work focused on model-free control applied to the Ahmed body, as well as track and wind tunnel testing on the prototype vehicle. Ultimately, the goal is to develop unknown-input observers to dynamically estimate drag and regulate it via closed-loop control.
This collaboration has resulted in a co-supervised PhD thesis (B. Plumejeau, defended in 2020) and a CIFRE PhD with ALSTOM (T. Amman). More recently, an ANR project proposal on this topic has been submitted and has been selected for phase 2 evaluation.
Contributions to the CPER Ritmea Project
As part of the CPER Ritmea project (Axis 2), I am responsible for acquiring, within the 2024 program, a robotized electric light commercial vehicle (Master-type). This platform will enable further research on active wake control and autonomous vehicle control.
Additionally, I am in charge of acquiring a hybrid fuel cell test bench, dedicated to both low-level control (pressure, temperature regulation loops) and energy management (fuel cell <-> battery coupling). This test bench will complement our existing experimental resources and fits within the framework of a collaboration with the Mechanics department (C. Morin) on thermal management and its integration with energy management (ANR Altos).
Domaines de recherche
Compétences
Publications
Publications
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Optimal Control for Friction Brake Emissions Minimization and Improved Air QualityIECON 2023- 49th Annual Conference of the IEEE Industrial Electronics Society, Oct 2023, Singapore, France. pp.1-6, ⟨10.1109/IECON51785.2023.10312103⟩
Communication dans un congrès
hal-04556768
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ECMS for energy management of hybrid vessels via quasi-LPV controlInternational Ship Control Systems Symposium 2022, Nov 2022, Delft, Netherlands
Communication dans un congrès
hal-03845055
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Computational reduction of optimal hybrid vehicle energy management2021 American Control Conference (ACC), May 2021, New Orleans, LA, United States. pp.1444-1449, ⟨10.23919/ACC50511.2021.9483437⟩
Communication dans un congrès
hal-03710650
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Control of an automated wheelchairThe proceedings of the 21th IFAC World Congress 2020, Jul 2020, Berlin, Germany. pp.7971-7976
Communication dans un congrès
hal-03406102
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Model free active flow control of a simplified car model9th IFAC Symposium on Advances in Automotive Control, AAC 2019, Jun 2019, Orléans, France. pp.115-120, ⟨10.1016/j.ifacol.2019.09.019⟩
Communication dans un congrès
hal-03679780
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Optimal Hybrid Vehicle Energy Management and Active Damping of the Side-Shaft Oscillations15th IEEE Vehicle Power and Propulsion Conference, VPPC 2018, Aug 2018, Chicago, IL, United States. pp.1-5, ⟨10.1109/VPPC.2018.8605037⟩
Communication dans un congrès
hal-03677956
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Hybrid Vehicle Energy Management: Avoiding the Explicit Hamiltonian MinimizationIEEE Vehicle Power and Propulsion Conference (VPPC), Aug 2018, Chicago, IL, United States. pp.1-5, ⟨10.1109/VPPC.2018.8604992⟩
Communication dans un congrès
hal-03409234
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State constrained hybrid vehicle optimal energy management: an interior penalty approach20th World Congress of the International Federation of Automatic Control, Jul 2017, Toulouse, France. pp.10040-10045, ⟨10.1016/j.ifacol.2017.08.1774⟩
Communication dans un congrès
hal-03413125
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Active Side Shafts Torsion Damping Control for Hybrid Electric Vehicles2017 IEEE Vehicle Power and Propulsion Conference (VPPC), Dec 2017, Belfort, France. ⟨10.1109/VPPC.2017.8330984⟩
Communication dans un congrès
hal-01877344
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Hybrid Vehicle Optimal Control: Linear Interpolation and Singular Control2014 IEEE Vehicle Power and Propulsion Conference (VPPC), Oct 2014, Coimbra, Portugal. pp.1-6, ⟨10.1109/VPPC.2014.7007080⟩
Communication dans un congrès
hal-03418646
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Automotive fuel economy improvement by micro hybridizationTRA2014 Transport Research Arena 2014, Apr 2014, Paris, France
Communication dans un congrès
hal-03470184
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Optimal Control of a parallel hybrid vehicle equipped with a dual electrical storage system7th international symposium on advances in automotive control, International Federation of Automatic Control (IFAC), Sep 2013, Tokyo, Japan. ⟨10.3182/20130904-4-JP-2042.00165⟩
Communication dans un congrès
hal-03469019
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Real time control of hybrid electric vehicle on a prescribed road17th World Congress - The International Federation of Automatic Control, Jul 2008, Séoul, South Korea. pp.3356-3361, ⟨10.3182/20080706-5-KR-1001.00570⟩
Communication dans un congrès
hal-01354184
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Predictive energy management of hybrid vehicleIEEE VPPC 2008, IEEE Vehicle Power and Propulsion Conference, Sep 2008, HARBIN, China. 6 p
Communication dans un congrès
hal-01354153
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MEGEVH project: graphical modeling for energy management of hybrid electric vehiclesEET-2007 European Ele-Drive Conference, May 2007, BRUXELLES, Belgium. 9 p
Communication dans un congrès
hal-01354255
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A comparison of two global optimization algorithms for hybrid vehicle energy managementIFAC IEEE 2007 International conference on Advances in Vehicle Control and Safety AVCS'07, Feb 2007, BUENOS AIRES, Argentina. 6 p
Communication dans un congrès
hal-01354262
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Convergence d'observateurs flous sous formes descripteurs : application à l'homme en station debout3ème Conférence Internationale Francophone d'Automatique (CIFA'04), Nov 2004, Douz, Tunisie
Communication dans un congrès
hal-02291500
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Evaluation de stratégies de commande pour véhicules hybride parallelesAutomatique / Robotique. Université de Valenciennes et du Hainaut-Cambresis, 2002. Français. ⟨NNT : ⟩
Thèse
tel-00007966
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