Letteratura scientifica selezionata sul tema "Véhicule à hydrogène"
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Articoli di riviste sul tema "Véhicule à hydrogène"
Tebibel, Hammou, Bouziane Mahmah e Wahiba Bendaïkha. "Dimensionnement optimal d’un système photovoltaïque pour la production d’hydrogène pour usage en mélange avec le gaz naturel comprimé dans les véhicules". Journal of Renewable Energies 15, n. 4 (25 ottobre 2023): 621–28. http://dx.doi.org/10.54966/jreen.v15i4.351.
Testo completoTesi sul tema "Véhicule à hydrogène"
Cailliez, Sylvain. "Modélisation du comportement et du vieillissement d'une batterie utilisée en propulsion automobile". Electronic Thesis or Diss., Ecole centrale de Nantes, 2023. http://www.theses.fr/2023ECDN0006.
Testo completoThe present context calls for an accelerated transition from internal combustion engines to zero-emission alternatives. In the short term, the battery electric vehicle is the most likely alternative, but its limited range, lifespan, flexibility and reliability are slowing down its full deployment.Optimising the energy management of the battery pack is a key factor in improving the performance of battery electric vehicles. However, the battery is a complex component evolving within an equally complex environment with multiple interactions. Modelling is therefore the most powerful tool to achieve the best possible synergy within the vehicle system.The objective of this study is to develop a general methodology combining experimental characterisation of batteries and calibration of an electrochemical model at the cell scale.The work allows to characterise and model the electrical and thermal behaviors and the aging of "pouch" batteries extracted from an battery electric vehicle, and the multiphysical interactions between these different phenomena.The model is developed within the GT-Suite environment, which will allow the integration of the cell model in a more global model representing the whole vehicle system
Collong, Sophie. "Conception des systèmes mécaniques complexes en comportement dynamique. Contribution à une démarche physico-fiabiliste à partir d'un système à pile à combustible pour véhicule électrique à hydrogène". Thesis, Belfort-Montbéliard, 2016. http://www.theses.fr/2016BELF0283/document.
Testo completoThe integration of complex mechanical systems subject to stringent vibration environments requiresconsideration of the real conditions of use from the beginning of the design phase.The thesis shows that the vibration environment and the duration of exposure to this environmentdepend on the use of the system throughout its life cycle. The evaluation of its use is based on thejoint evolution of both the user behavior and the system technology development.The dependability analysis of a complex mechanical system leads to consider the system as a wholeand thus to investigate in depth the dynamic behavior of critical components. A basic modeling ofthe mechanical system allows to qualitatively and quantitatively identify key dynamic behaviors anddetermines the vibration loads to which selected critical components are subjected. On this basis,modeling the behavior of a mechanical component leads to assess its fatigue damage. This indicatorhelps the designer in his choice of component geometry.Finally, the climatic environment as well as effects related to the internal functioning of the system,have been taken into account by performing vibro-climatic tests of on an operating systems, i.e. a fuelcell system integrated into a hydrogen electric vehicle. This helped to develop a procedure to supportthe design of complex mechanical systems
Jiang, Qi. "Gestion énergétique de véhicules hybrides par commande optimale stochastique". Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLS011/document.
Testo completoThis thesis presents a comparative study between four recent real-time energy management strategies (EMS) applied to a hybrid electric vehicle and to a fuel cell vehicle applications: rule-based strategy (RBS), adaptive equivalent consumption minimization strategy (A-ECMS), optimal control law (OCL) and stochastic dynamic programming (SDP) associated to driving cycle modeling by Markov chains. Pontryagin’s minimum principle and dynamic programming are applied to off-line optimization to provide reference results. Implementation and parameters setting issues are discussed for each strategy and a genetic algorithm is employed for A-ECMS calibration.The EMS robustness is evaluated using different types of driving cycles and a statistical analysis is conducted using random cycles generated by Markov process. Simulation and experimental results lead to the following conclusions. The easiest methods to implement (RBS and OCL) give rather high fuel consumption. SDP has the best overall performance in real-world driving conditions. It achieves the minimum average fuel consumption while perfectly respecting the state-sustaining constraint. A-ECMS results are comparable to SDP’s when using parameters well-adjusted to the upcoming driving cycle, but lacks robustness. Using parameter sets adjusted to the type of driving conditions (urban, road and highway) did help to improve A-ECMS performances
Cherif, Hamadi. "Etude et modélisation de méthodes de séparation du méthane et de H2S, sélection d'une méthode favorisant la valorisation de H2S". Thesis, Paris Sciences et Lettres (ComUE), 2016. http://www.theses.fr/2016PSLEM074/document.
Testo completoBiogas must be purified for becoming a renewable fuel. At now, the most part of the purification techniques are not satisfactory because they imply hydrogen sulfides (H2S) rejection to the atmosphere. One example of these methods is the treatment with high pressure water. The first objective of the thesis is modeling the conventional methods for separating H2S from methane. Typical concentrations of H2S in methane vary from 200 to 5000 pm. Separation methods must decrease the concentration of H2S in methane to less than 1 ppm. At the same time, methods for H2S treatment will be studied.Once the most appropriated separation methods will be selected, some test will be carried out on a pilot plant capable of treating 85 Nm3/h of methane, where quantities of H2S ranging from 1 and 100 ppm will be injected. These tests will allow validating the modeling of the separation process. On the basis of the obtained results, a specific test bench will be conceived and constructed for validating the selected process.The thesis work requires simulating the separation process using the software Aspen Plus® or an equivalent one. The effectiveness of different operative conditions will be tested, varying also the parameter temperature. The energy necessary for the separation will be one of the most important criteria for the comparison, as well as the mass consumption of the different fluids involved in the process.A system approach is fundamental for evaluating the backward effect of the H2S valorization method on the separation techniques. The process simulator (Aspen Plus® or equivalent) will allow the system approach.The study will involve modeling and experimental parts. The experimental part will be carried out taking advantage of a semi-industrial size test bench, allowing studying the separation methods down to -90°C
Challet, Sylvain. "Stockage de l'hydrogène dans les hydrures métalliques pour l'alimentation en hydrogène de véhicules à pile à combustible". Paris 12, 2005. https://athena.u-pec.fr/primo-explore/search?query=any,exact,990002314920204611&vid=upec.
Testo completoHydrogen storage remains an issue for its use in mobile applications. Despite its weight, storage in metal hydrides presents advantages in term of safety and volumic capacity. In this work, several families of hydrides have been studied to answer to the working conditions of a main tank or a buffer tank for cold start. The thermodynamic properties of LaNi5 and TiFe type hydrides have been adjusted by suitable substitutions allowing to obtain potentially usable compounds for both kinds of tanks. In order to increase the weight capacity, the effect of M element on thermodynamics properties of lighter hydrides based on Ti-V-M solid solutions (M=Mn, Fe, Co, Ni) has been studied showing the best hydrogenation properties for the Fe compound. Finally, the discovery of hydrogen reactivity of the Ti3Si compound opens new routes
Piffard, Maxime. "Conception d’observateurs pour la commande d’un système pile à combustible embarqué en vue d’optimiser performances et durabilité". Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI121/document.
Testo completoFuel cells are considered as a promising source of energy for the future, thanks to their non-polluting aspect. However, the deployment of these solutions on a large scale is still conditioned by the improvement of their performance and especially of their durability in order to guarantee a low cost industrialization. The transport application also imposes a variable power demand, which complicates the improvement of performance and durability. The approach adopted for this work consists of the design of a system management law that generates the optimal operating conditions to be applied to the stack (pressures, temperature, current, stoichiometries) as a function of the power demand, the state of health (active surface loss) and current humidity. Optimality is understood in the sense of increasing system efficiency and decreasing the degradation of the membrane and the platinum dissolution. This law is based on degradation and performance models of a fuel cell system. This management law requires in real time the data of the state of health of the fuel cell and the humidity rate. The assessment of the state of health is already the subject of many diagnostic work. On the other hand, the humidity rate must be estimated by a state observer because the humidity sensors are not reliable for a transport application. Therefore, a state observer was developed to estimate the relative humidities in the stack channels and also the membrane water content, the hydrogen at the anode as well as the nitrogen saturation at the anode. This last data makes it possible to propose a purge strategy for a dead-end architecture, based on nitrogen saturation, which limits the losses in hydrogen and reduces the damage associated with this architecture
Aiteur, Imad-Eddine. "Modélisation, commande et optimisation d’un réseau multi-sources. Application à la traction de véhicules électriques". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC047.
Testo completoThis thesis focuses on the investigation of control approaches to treat the issue of energy management of multi-source electrical networks. The considered electric motor supply system consists on a fuel cell as a main energy source and an additional element that supplies peak power and charges by regenerative braking. At first, three energy management strategies have been applied to the sypply system aiming to minimize the fuel cell hydrogen mass consumption while satisfying the system physical constraints. First, the optimization is realized using dynamic programming,an off-line optimization method that requires the knowledge of the entire power load profile. Secondly, twoon-line optimization approaches are used : ECMS and MPC strategies, for which only the current power demand is demanded.The second part of this thesis presents a decentralized control strategy applied to the power system. The dedicated control structure aims to assure an optimal operation of the FC system while respecting the compressor physical limits and to control the converter current sand network output voltage. To attain these objectives, a dynamic model of the FC system is used,in addition to the SSE and electric network dynamics. The FC system regulation and the control of the SSE state of energy are performed separately with two different controllers, both designed using (MPC-LTV) approach. The third and fourth levels of the decentralized control structure consists on inner control loops for fuel cell/supercapacitor currents and a DC bus voltage control loop, designed using PI controllers. The validation of the control structure is performed in simulation using a nonlinear models of the FC system and the SSE. To validate and compare the performance of different control methods based on a fuel cell static model, these approaches have been applied to the dynamic model of the FC and compared to the results obtained by applying the approched designed and based on an FC dynamic model. A comparison in terms of network efficiency and hydrogen consumption has been done
Carlos, Da Silva Daniel. "Development of a closed-form modeling methodology for the subsystems of electric vehicles : optimization of energy performance". Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST014.
Testo completoTo maximize the contribution of hybrid electric vehicles (HEV) to the decarbonization of the transportation sector, it is essential to maximize their energy performance during the design phase. However, the additional power pathways to propel the vehicle act both as an advantage and an added layer of complexity. Indeed, evaluating the consumption of an HEV requires defining a supervisory control, known as Energy Management Strategy (EMS). Therefore, optimizing the design entails combining a static optimization problem (system's plant) with a time-dependent problem (its control), both of which must be considered in tandem.This plant/control co-optimization is typically tackled through either nesting optimal control algorithms within each iteration of a general optimization algorithm for the plant, or employing convex optimization to simultaneously optimize both layers. However, the former approach is known to be limited by computational constraints, while the latter may impact modeling fidelity due to convexity constraints.As a different perspective, this thesis introduces a methodology for developing explicit models to estimate powertrain energy consumption, referred to in this work as the Explicit Powertrain Consumption Model (EPCM). They are developed using component models to account for power losses, then by introducing a second modeling level to consider the impact of sizing variations on loss estimation. Such a formulation can be used as a computationally efficient objective function of an optimization problem that remains static, while enabling human-explainable analysis for reduced problems.The thesis presents the methodology development while using a Fuel Cell Hybrid Electric Vehicle (FCHEV) as a reference vehicle. Besides modeling components commonly found in electric vehicles, it includes a model for the fuel cell system, while further considering models for the power electronics, often overlooked in vehicle design studies. It first introduces the considered component models, then the models for the sizing variation (i.e., the predictive models), before developing the EPCMs and using them for the co-optimization.The validation of the component models using a Toyota Mirai~II on a roller test bench presents an overall error of less than five percent, while the study to assess the impact of the predictive models on the hydrogen consumption resulted in errors below two percent when compared to reference models. Then, an assessment of the usage of EPCMs explores the assumptions required to ensure an explicit formulation; and the co-optimization of the Mirai~II powertrain shows that an EPCM using an affine EMS can be a fair approximation for the co-optimization at the vehicle's first design stages, while reducing the evaluation time by a factor of 100. This study is further extended with reduced problems to observe the impact of the EM sizing only, then of the hybridization level, resulting in linear and quadratic expressions for the fuel consumption and the optimization constraints, which can be used to quickly derive analyses of the vehicle's energy performance.Although the results show that the current state of the methodology can be used for the co-optimization of FCHEVs, the thesis further explores its improvement points and suggests alternative applications to solidify its validity and relevance
Vichard, Loic. "Contribution à l’étude du vieillissement des composants batterie et pile à combustible en usage réel". Thesis, Bourgogne Franche-Comté, 2019. http://www.theses.fr/2019UBFCA018.
Testo completoThese thesis works are associated to the AsDeCoEUR project. This project is part of the current context of the development of new energy technologies for mobility and focuses more specifically on the study of battery and fuel cell components located in the heart of electric power train. The project is based on the work already carried out by the UTBM and IFSTTAR actors of the FCLAB research federation among the Mobypost project. Mobypost european project has allowed the experimentation of a fleet of 10 fuel cell electric vehicles under actual operating conditions on two postal platforms in the Franche-Comté region.During the Mobypost experiment, a deep monorting was performed on all the vehicles so numerous physical data of their power train were recorded. All of these information now constitutes a very rich database to exploit. Among the AsDeCoEUR project, we propose a scientific approach carried out around a thesis work wich aims at understanding dynamic behavior, studying aging and estimating the state of health of batteries and fuel cells in real use. This approach is based on the analysis of the data recorded on these components among the Mobypost project and is reinforced by specific experiments set up in the laboratory. The implementation of skills and digital analysis tools developed especially for batteries by the Ampère laboratory and IFSTTAR aims at understanding and reproducing the degradation phenomena. The works should finally allow, by combining the skills of UFC, UTBM, IFSTTAR and Ampère laboratory researchers, to contribute to the study of batteries and fuel cells aging and to estimate their state of health under actual operating conditions. This constitutes a remarkable advance in this field, particularly with a view to the industrialization of vehicles equipped with this type of component
Fonseca, Ramon Naiff da. "Optimization of the sizing and the energy management for a hybrid fuel cell vehicle including fuel cell dynamics and durability constraints". Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0110/document.
Testo completoThe hydrogen, through the use of fuel cell stacks (FC), has been increasily considered as an energy possible option for the transport sector. Nevertheless, the technology related to its implementation in fuel cell vehicles has not reached the required maturity level. Therefore, this work intends to deal some of these existing limitations. More precisely, three topics represent the objectives of this work: The optimal sizing of the element present in the fuel cell hybrid vehicle. The development of an optimal energy management strategy oriented for real time applications and including the dynamic constraints of the FC system. The inclusion of the fuel cell durability in the vehicle energy management strategy. The first topic is tackled by the development of a sizing methodology adapted to the fuel cell hybrid vehicle application. Using a systematic approach, the proposed sizing method combine the performance requirements present in the vehicle's technical specifications, optimization algorithms, population mobility behavior and the economic viability of the design. The second assigned objective was developed using an optimization approach for the power split between the battery and the FC system. Through the adoption of a global optimization method allied with a predictive control strategy and the inclusion of the FC system dynamics, it was created an energy management algorithm oriented for real time applications. Finally, the fuel cell durability was included in this work by the integration of its degradation dynamics in the optimization problem, which is related to the vehicle's energy management. Such dynamic represents a constraint that should be taken into account in the power sharing between the FC system and battery
Libri sul tema "Véhicule à hydrogène"
Langlois, Pierre. Rouler sans pétrole. Québec: Éditions MultiMondes, 2008.
Cerca il testo completoJ, MacKenzie James. The keys to the car: Electric and hydrogen vehicles for the 21st century. [Baltimore, Md.?]: World Resources Institute, 1994.
Cerca il testo completoHordeski, Michael Frank. Hydrogen and Fuel Cells: Advances in Transportation and Power. River Publishers, 2020.
Cerca il testo completoHordeski, Michael Frank. Hydrogen and Fuel Cells: Advances in Transportation and Power. River Publishers, 2020.
Cerca il testo completoHordeski, Michael Frank. Hydrogen and Fuel Cells: Advances in Transportation and Power. River Publishers, 2020.
Cerca il testo completoHordeski, Michael Frank. Hydrogen Fuel Cells: Advanced Transportation and Power Generation Systems. Fairmont Press, 2008.
Cerca il testo completoHordeski, Michael Frank. Hydrogen and Fuel Cells: Advances in Transportation and Power. River Publishers, 2020.
Cerca il testo completoHordeski, Michael Frank. Hydrogen and Fuel Cells: Advances in Transportation and Power. River Publishers, 2020.
Cerca il testo completoHordeski, Michael Frank. Hydrogen and Fuel Cells: Advances in Transportation and Power. River Publishers, 2020.
Cerca il testo completo