Sébastien Delprat

Professeur des Universités en Automatique
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Documents
Affiliations actuelles
  • 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)
Contact

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

Automatique

Compétences

Control and obseravation of Quasi-LPV Systems Optimal control Matlab, Python Programming

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Publications

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Cost-Effective Estimation of Vehicle Lateral Tire-Road Forces and Sideslip Angle via Nonlinear Sampled-Data Observers: Theory and Experiments

Anh-Tu Nguyen , Luciano Frezzatto , Thierry-Marie Guerra , Sébastien Delprat
IEEE/ASME Transactions on Mechatronics, In press, ⟨10.1109/TMECH.2024.3382777⟩
Article dans une revue hal-04553950 v1
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Underbody flow control for base drag reduction of a real car model

Laurent Keirsbulck , Olivier Cadot , Marc Lippert , David Boussemart , Jérémy Basley et al.
Journal of Wind Engineering and Industrial Aerodynamics, 2024, 252, pp.105822. ⟨10.1016/j.jweia.2024.105822⟩
Article dans une revue hal-04819727 v1
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Wall pressure control of a 3D cavity with lateral apertures and wall proximity

Tarek Ammam , Laurent Keirsbulck , Jérémy Basley , Etienne Grappein , Sebastien Delprat et al.
Experiments in Fluids, 2024, 65 (12), pp.177. ⟨10.1007/s00348-024-03900-2⟩
Article dans une revue hal-04978805 v1
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Drag mitigation by steady blowing and Coanda effect on a square back Ahmed body

Baptiste Plumejeau , Laurent Keirsbulck , Jérémy Basley , Marc Lippert , Sébastien Delprat et al.
European Journal of Mechanics - B/Fluids, 2023, 98, pp.80-91. ⟨10.1016/j.euromechflu.2022.11.006⟩
Article dans une revue hal-04819733 v1
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Discrete reference tracking control to swing up an electric wheelchair

Michael Gray , Thierry Marie Guerra , Sébastien Delprat , S. Mohammad
Asian Journal of Control, 2023, 25 (5), pp.3369-3383. ⟨10.1002/asjc.3053⟩
Article dans une revue hal-04819751 v1
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Neural-Network-Based Fuzzy Observer with Data-Driven Uncertainty Identification for Vehicle Dynamics Estimation under Extreme Driving Conditions: Theory and Experimental Results

Cuong Nguyen , Anh-Tu Nguyen , Sébastien Delprat
IEEE Transactions on Vehicular Technology, In press, 72 (7), pp.1-11. ⟨10.1109/TVT.2023.3249832⟩
Article dans une revue hal-04017564 v1
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Cascade Takagi–Sugeno fuzzy observer design for nonlinear uncertain systems with unknown inputs: A sliding mode approach

Cuong Nguyen , Anh‐tu Nguyen , Sebastien Delprat
International Journal of Robust and Nonlinear Control, 2022, 33 (15), pp.9066-9083. ⟨10.1002/rnc.6371⟩
Article dans une revue hal-03930955 v1
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A Tighter Exact Convex Modeling for Improved LMI-Based Nonlinear System Analysis and Design

Sebastien Delprat , Jorge Alvarez , Marcelino Sanchez Pantoja , Miguel Bernal
IEEE Transactions on Fuzzy Systems, 2021, 29 (9), pp.2819-2824. ⟨10.1109/TFUZZ.2020.3005345⟩
Article dans une revue hal-03424448 v1
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Reducing the Computation Effort of a Hybrid Vehicle Predictive Energy Management Strategy

Sebastien Delprat , Mohamed Riad Boukhari
IEEE Transactions on Vehicular Technology, 2021, 70 (7), pp.6500-6513. ⟨10.1109/TVT.2021.3082624⟩
Article dans une revue hal-03424936 v1
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A novel parameter-dependent polynomial approach for robust automated lane keeping

Marcelino Sanchez Pantoja , Jorge Alvarez , Sebastien Delprat , Miguel Bernal
International Journal of Fuzzy Systems, 2021, 23 (5), pp.1370-1378. ⟨10.1007/s40815-020-01042-1⟩
Article dans une revue hal-03426249 v1
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Eco-Driving of Metro Trains Considering Variable Efficiency of Propulsion System

Arun Kumar Kantheti , Denis Berdjag , Sebastien Delprat , Aamir Kamran
IEEE Transactions on Control Systems Technology, In press, 6, pp.25-30. ⟨10.1109/TCST.2025.3549274⟩
Article dans une revue hal-04978646 v1
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Control of an automated wheelchair

Michael Gray , Thierry-Marie Guerra , Sebastien Delprat , Sami Mohammad
IFAC-PapersOnLine, 2020, 53 (2), pp.7971-7976. ⟨10.1016/j.ifacol.2020.12.2202⟩
Article dans une revue hal-03691507 v1

Behavior of the square-back Ahmed body global modes at low ground clearance

Baptiste Plumejeau , Laurent Keirsbulck , Sebastien Delprat , Marc Lippert , Wafik Abassi
Physical Review Fluids, 2020, 5 (8), ⟨10.1103/PhysRevFluids.5.084701⟩
Article dans une revue hal-03342285 v1
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Computational Reduction of Optimal Hybrid Vehicle Energy Management

Carlos Armenta , Sebastien Delprat , Rudy R Negenborn , Ali Haseltalab , Jimmy Lauber et al.
IEEE Control Systems Letters, 2020, 6, pp.25-30. ⟨10.1109/LCSYS.2020.3046609⟩
Article dans une revue hal-04556682 v1
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Energy management of hybrid vehicles with state constraints: A penalty and implicit Hamiltonian minimization approach

Marcelino Sanchez Pantoja , Sebastien Delprat , Theo Hofman
Applied Energy, 2020, 260, pp.114149. ⟨10.1016/j.apenergy.2019.114149⟩
Article dans une revue hal-03642865 v1

Energetic and exergetic investigations of an innovative heat recovery exhaust system using a double acting type Stirling engine based on theoretical analysis

Houda Hachem , Ramla Gheith , Fethi Aloui , Sebastien Delprat , Sebastien Paganelli
International Journal of Exergy, 2019, 28 (3), pp.273-300. ⟨10.1504/IJEX.2019.098615⟩
Article dans une revue hal-03605901 v1

Ultra-local model-based control of the square-back Ahmed body wake flow

Baptiste Plumejeau , Sebastien Delprat , Laurent Keirsbulck , Wafik Abassi
Physics of Fluids, 2019, 31 (8), pp.085103. ⟨10.1063/1.5109320⟩
Article dans une revue hal-03341963 v1
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Model free active flow control of a simplified car model

Baptiste Plumejeau , Sebastien Delprat , Laurent Keirsbulck
IFAC-PapersOnLine, 2019, 52 (5), pp.115-120. ⟨10.1016/j.ifacol.2019.09.019⟩
Article dans une revue hal-03679783 v1
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Brake and velocity model-free control on an actual vehicle

Philip Polack , Sebastien Delprat , Brigitte D’andréa-Novel
Control Engineering Practice, 2019, 92, pp.104072 -. ⟨10.1016/j.conengprac.2019.06.011⟩
Article dans une revue hal-03488312 v1
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Hybrid Vehicle Energy Management: Singular Optimal Control

Sebastien Delprat , Theo Hofman , Sebastien Paganelli
IEEE Transactions on Vehicular Technology, 2017, 66 (11), pp.9654-9666. ⟨10.1109/TVT.2017.2746181⟩
Article dans une revue hal-03429438 v1

Nested backward compensation of unmatched perturbations via HOSM observation

Alejandra Ferreira de Loza , E. Punta , Leonid Fridman , Georgio Bartolini , Sebastien Delprat
Journal of The Franklin Institute, 2014, 351 (5), pp.2397-2410. ⟨10.1016/j.jfranklin.2013.12.011⟩
Article dans une revue hal-03644604 v1

Optimized Hybrids

Sebastien Delprat , Christian Fontaine , Sebastien Paganelli
DSpace Magazine, 2014, 2, pp.35-37
Article dans une revue hal-03644634 v1

Predictive energy management for hybrid vehicle

Saida Kermani , Sebastien Delprat , Thierry-Marie Guerra , Rochdi Trigui , Bruno Jeanneret
Control Engineering Practice, 2012, 20 (4), pp. 408-420. ⟨10.1016/j.conengprac.2011.12.001⟩
Article dans une revue istex hal-00877628 v1

High order sliding mode control for hybrid vehicle stability

Sebastien Delprat , Alejandra Ferreira de Loza
International Journal of Systems Science, 2012, 45 (5), pp.1202-1212. ⟨10.1080/00207721.2012.745241⟩
Article dans une revue hal-03648938 v1

Hybrid vehicle energy management using the optimal control problem

Sebastien Delprat , Saida Kermani , Thierry-Marie Guerra , Rochdi Trigui , Bruno Jeanneret
Mediterranean Journal of Measurement and Control, 2011, 9 p
Article dans une revue hal-01357545 v1

PHIL Implementation of Energy Management Optimization for a Parallel HEV on a Predefined Route

Saida Kermani , Rochdi Trigui , Sebastien Delprat , Bruno Jeanneret , Thierry-Marie Guerra
IEEE Transactions on Vehicular Technology, 2011, 60 (3), pp. 782-792. ⟨10.1109/TVT.2011.2107534⟩
Article dans une revue hal-00992846 v1

Fuel-Cell Hybrid Powertrain: Toward Minimization of Hydrogen Consumption

J. Bernard , Sebastien Delprat , F.N. Buchi , Thierry-Marie Guerra
IEEE Transactions on Vehicular Technology, 2009, 58 (7), pp.3168-3176. ⟨10.1109/TVT.2009.2014684⟩
Article dans une revue hal-02446436 v1
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An alternative to inverse dynamics joint torques estimation in human stance based on a Takagi-Sugeno unknown inputs observer in the descriptor form

Kevin Guelton , Sebastien Delprat , Thierry-Marie Guerra
Control Engineering Practice, 2008, 16 (12), pp.1414-1426. ⟨10.1016/j.conengprac.2008.04.002⟩
Article dans une revue hal-00793233 v1
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Vehicle spacing control using robust fuzzy control with pole placement in LMI region

P.-F. Toulotte , Sebastien Delprat , Thierry-Marie Guerra , Jacques Boonaert
Engineering Applications of Artificial Intelligence, 2008, 21 (5), pp.756-768. ⟨10.1016/j.engappai.2007.07.009⟩
Article dans une revue hal-04819771 v1

Joint torques estimation in human standing based on a fuzzy descriptor unknown inputs observer

Kevin Guelton , Sebastien Delprat , Thierry-Marie Guerra
IFAC Proceedings Volumes, 2006, 39 (18), pp.405 - 410. ⟨10.3182/20060920-3-FR-2912.00073⟩
Article dans une revue hal-01736811 v1

Simulation and assessment of power control strategies for a parallel hybrid car

Gino Paganelli , Thierry-Marie Guerra , Sebastien Delprat , Jean-Jacques Santin , M Delhom et al.
Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2005, 214 (7), pp.705-717. ⟨10.1243/0954407001527583⟩
Article dans une revue istex hal-02446405 v1
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A Class of Non Linear Observers in Descriptor Form: LMI Based Design with Application in Biomechanics

Thierry-Marie Guerra , Kevin Guelton , Sebastien Delprat
IFAC Proceedings Volumes, 2004, 37 (16), pp.73 - 78. ⟨10.1016/S1474-6670(17)30853-4⟩
Article dans une revue hal-01736813 v1

Equivalent Consumption Minimization Strategy For Parallel Hybrid Powertrains

Sebastien Delprat , J. Lauber , Thierry-Marie Guerra , J. Rimaux
IEEE Transactions on Vehicular Technology, 2004, 53 (3), pp.872-881. ⟨10.1109/TVT.2004.827161⟩
Article dans une revue hal-02446383 v1
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Optimal Control for Friction Brake Emissions Minimization and Improved Air Quality

Arun Kumar Kantheti , Denis Berdjag , Francesco Paolo Fumarola , Sébastien Delprat
IECON 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 v1
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ECMS for energy management of hybrid vessels via quasi-LPV control

Carlos Armenta , Rudy R Negenborn , Sébastien Delprat , G Hawksley
International Ship Control Systems Symposium 2022, Nov 2022, Delft, Netherlands
Communication dans un congrès hal-03845055 v1

Computational reduction of optimal hybrid vehicle energy management

Carlos Daniel Armenta Moreno , Sebastien Delprat , Rudy R. Negenborn , Ali Haseltalab , Jimmy Lauber et al.
2021 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 v1
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Control of an automated wheelchair

Michael Gray , Thierry-Marie Guerra , Sebastien Delprat , Sami Mohammad
The proceedings of the 21th IFAC World Congress 2020, Jul 2020, Berlin, Germany. pp.7971-7976
Communication dans un congrès hal-03406102 v1

Model free active flow control of a simplified car model

Baptiste Plumejeau , Sebastien Delprat , Laurent Keirsbulck
9th 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 v1

Optimal Hybrid Vehicle Energy Management and Active Damping of the Side-Shaft Oscillations

Marcelino Sanchez Pantoja , Sebastien Delprat , Walter Lhomme , Florian Tournez
15th 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 v1

Hybrid Vehicle Energy Management: Avoiding the Explicit Hamiltonian Minimization

Marcelino Sanchez Pantoja , Sebastien Delprat
IEEE 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 v1

State constrained hybrid vehicle optimal energy management: an interior penalty approach

Tariq Kareemulla , Sebastien Delprat , Ludwig Czelecz
20th 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 v1

Active Side Shafts Torsion Damping Control for Hybrid Electric Vehicles

Walter Lhomme , Florian Tournez , Sebastien Delprat , Sebastien Paganelli
2017 IEEE Vehicle Power and Propulsion Conference (VPPC), Dec 2017, Belfort, France. ⟨10.1109/VPPC.2017.8330984⟩
Communication dans un congrès hal-01877344 v1

Hybrid Vehicle Optimal Control: Linear Interpolation and Singular Control

Sebastien Delprat , Theo Hofman
2014 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 v1

Automotive fuel economy improvement by micro hybridization

Clément Fontaine , Sebastien Delprat , Sebastien Paganelli , Jérome Bodelle
TRA2014 Transport Research Arena 2014, Apr 2014, Paris, France
Communication dans un congrès hal-03470184 v1

Optimal Control of a parallel hybrid vehicle equipped with a dual electrical storage system

Clément Fontaine , Sebastien Delprat , Sebastien Paganelli , Thierry-Marie Guerra
7th 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 v1

Real time control of hybrid electric vehicle on a prescribed road

Saida Kermani , Sebastien Delprat , Thierry-Marie Guerra , Rochdi Trigui
17th 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 v1

Predictive energy management of hybrid vehicle

Saida Kermani , Sebastien Delprat , Rochdi Trigui , Thierry-Marie Guerra
IEEE VPPC 2008, IEEE Vehicle Power and Propulsion Conference, Sep 2008, HARBIN, China. 6 p
Communication dans un congrès hal-01354153 v1

MEGEVH project: graphical modeling for energy management of hybrid electric vehicles

Alain Bouscayrol , Sebastien Delprat , Daniel Hissel , Rochdi Trigui
EET-2007 European Ele-Drive Conference, May 2007, BRUXELLES, Belgium. 9 p
Communication dans un congrès hal-01354255 v1

A comparison of two global optimization algorithms for hybrid vehicle energy management

Saida Kermani , Sebastien Delprat , Rochdi Trigui , Thierry-Marie Guerra
IFAC 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 v1
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Convergence d'observateurs flous sous formes descripteurs : application à l'homme en station debout

Kevin Guelton , Thierry-Marie Guerra , Sebastien Delprat
3ème Conférence Internationale Francophone d'Automatique (CIFA'04), Nov 2004, Douz, Tunisie
Communication dans un congrès hal-02291500 v1
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Evaluation de stratégies de commande pour véhicules hybride paralleles

Sebastien Delprat
Automatique / Robotique. Université de Valenciennes et du Hainaut-Cambresis, 2002. Français. ⟨NNT : ⟩
Thèse tel-00007966 v1