Gerard Coquery

Gerard Coquery
Université Gustave Eiffel · Department of Components and Systems (COSYS)

senior fellow emeritus

About

23
Publications
3,957
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
114
Citations
Citations since 2016
7 Research Items
86 Citations
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025
20162017201820192020202120220510152025
Additional affiliations
January 2011 - September 2016
Université Gustave Eiffel
Position
  • Managing Director

Publications

Publications (23)
Article
Full-text available
PCB-Embedding technology is an established approach for the miniaturization of electronic systems and modules. Silver sintering, which is a reliable alternative to Lead-Free Bonding, is used to assemble the embedded power components in the PCB. Thermal cycles [−25 °C/+125 °C] have highlighted degradations in the die attach. The shear strength of di...
Technical Report
Full-text available
The goal of this project is to analyse the mobility in the surrounding of the University of Indonesia in Depok and to analyse an innovative and efficient transport system to provide a pertinent offer to satisfy this mobility demand in relation with the other modes, which can be linked with the analysed system of transport. The project we are propos...
Article
Full-text available
In a context of growing electrification of road transport, Wireless Power Transfer (WPT) appears as an appealing alternative technology as it enables Electric Vehicles (EVs) to charge while driving and without any mechanical contact (with overhead cables or rails in the ground). Although the WPT technology background dates from the end of 20th cent...
Conference Paper
An experimental road concept has been implemented in Versailles-Satory, France, by the French research Institute VEDECOM. Its design aims at providing a convenient test facility to develop and assess the performances of Dynamic Wireless Power Transfer (DWPT) prototype systems for Electric Vehicle (EV). A first system developed by Qualcomm CDMA Tech...
Conference Paper
Full-text available
An original innovative prototype of dynamic Wireless Power Transfer (WPT) system for Electric Vehicle (EV) has been developed, integrated and demonstrated within the FABRIC European project [1] in Versailles-Satory, France. This charging solution consists in several charging spots along the lane. The antennas embedded below the road surface are con...
Article
Full-text available
En utilisation, les modules de puissance des vehicules electriques sont soumis a de tres durs chargements thermiques. Les contraintes thermomecaniques qui en resultent impactent leur duree de vie. Comme les conditions specifiques de montage et de refroidissement ont un effet significatif sur la fiabilite, il est important de tester les modules de p...
Article
Full-text available
p>Ce papier propose d'intégrer la fiabilité prévisionnelle dans une approche de pré-dimensionnement de convertisseurs statiques entrelacés pour des applications embarquées automobiles. Cette approche est basée sur une optimisation multi-physique permettant de formaliser le choix d'architecture. Elle intègre les contraintes de conception d'une maniè...
Article
Full-text available
p>Cet article présente une démarche d'aide à l'évaluation de la fiabilité d'une pile à combustible de type PEM. L'objectif est de garantir un niveau de performance électrique donné dans les différentes conditions d'usage envisagées. La démarche s'appuie sur un couplage physico-fiabiliste où la complexité des phénomènes physiques présents dans la pi...
Conference Paper
Full-text available
This work proposes a sensitivity analysis of the control of a 3-phase open-end windings PMSM H-bridge drive. The study issues are focused on the robustness of Space Vector PWM modulation strategies towards unavoidable operating faults. The considered faults are due to the imperfection of the PWM hardware implementation, the power converter nonlinea...
Conference Paper
Full-text available
In this paper, we focus on impacts of thermal cycling ageing on supercapacitors performances at a constant voltage. We compare obtained results with those coming from simple calendar ageing at constant temperature and voltage. The comparison is based on physics modeling parameters evolution based on results from experimental measurements during cal...
Article
In this article, a novel method is proposed to help evaluating the reliability of a Proton Exchange Membrane Fuel Cell (PEMFC) stack. The method is based on a knowledge fuel cell model which is one-dimensional, non-isothermal and includes a diphasic representation of the fluidic flows (each reactant is considered as a mix of gases and liquid water)...
Conference Paper
The aim of the paper is to emphasize the differences between the behavior of the organic and inorganic supercapacitors in order to obtain a good understating of their optimal applications. The differences were obtained and determined while testing two types of supercapacitors with cycling temperature, DC charge discharge and electric impedance spec...
Article
Full-text available
La montée en puissance des piles à combustible se heurte à des difficultés d'ordre mécanique et fluidique, limitant l'assemblage en série de cellules unitaires pour les piles de forte puissance. Aussi, à l'heure actuelle, est-il plus aisé de concevoir des générateurs pile à combustible associant plusieurs piles unitaires, dits « multi-stack ». L'ap...
Conference Paper
The aim of the paper is to present and emphasize the benefits of using hybrid storage devices (composed of batteries and supercapacitors) and typical controllers in a wide range of applications, especially in the automotive field. In order to offer an optimal integration of the mentioned devices for different types of applications, the focus is ori...
Article
Full-text available
INRETS has been involved with linear motor design for 25 years now. This paper presents the history of the scientific and technical development of the specific linear induction motor "LIM" based on U shape reaction rail, originally designed for high speed guided vehicles. The methodology of design is based on an original way involving experimental...
Article
Full-text available
This paper deals with ageing parameters of high power IGBT modules in traction applications. Using the results of a great number of power cycling tests on 400A modules, it shows that, in addition to the junction temperature excursion, other parameters like the maximal chip temperature and the current density are involved in thermal fatigue failures...
Article
This paper presents an original contact-free sensor which is able to measure the longitudinal position of rail vehicles in taking advantage of the magnetic characteristics of rails which enable a local magnetic state to be recorded then read, in a similar way to a magnetic tape. The device consists of a record head or marker at the front of the veh...
Article
Full-text available
Supercapacitors represent an alternative for the actual storage devices being able to provide high power density. The present paper is focused on characterizing the inorganic aqueous stacked supercapacitors. DC charge/discharge method was used to determine the dependency between the electric series resistance, capacitance and temperature. Electric...

Network

Cited By