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Featured researches published by Alex Coiret.


Vehicle System Dynamics | 2014

Application of viability theory for road vehicle active safety during cornering manoeuvres

Pierre Olivier Vandanjon; Alex Coiret; T. Lorino

Viability theory proposes geometric metaphors in addition to classical ordinary differential equation analysis. In this paper, advantages of applying viability theory to road safety domain are presented. The exact issue is to determine if, from an initial state of a vehicle/road/driver system, a soft controls strategy is compatible with a safe driving sequence. The case of a car negotiating a curve is considered. The application of the viability theory to this issue offers the advantage to avoid classical full computing of the system. Instead of that, it consists on verifying that the states and the controls belong to a subset called the viability kernel. The construction and the use of the viability kernel for a vehicle system dynamic is proposed by using support vector machines algorithm. Then, the applicability of this theory is demonstrated through experimental tests. This innovative application of the viability theory to vehicle dynamics with road safety concerns could benefit to robust embedded warning systems.


World Academy of Science, Engineering and Technology, International Journal of Electrical, Computer, Energetic, Electronic and Communication Engineering | 2013

Model of high-speed train energy consumption

Romain Bosquet; Pierre Olivier Vandanjon; Alex Coiret; Tristan Lorino


Proceedings of the International Conference on Road and Rail Infrastructure CETRA | 2012

Energy Consumption Induced by Operation Phase of Railways and Road Infrastructures

Alex Coiret; Pierre Olivier Vandanjon; Romain Bosquet; Agnès Jullien


International Symposium on Life Cycle Assessment and Construction – Civil engineering and buildings | 2012

Practical guidelines for Life Cycle Assessment applied to railways project

Pierre Olivier Vandanjon; Alex Coiret; Bogdan Muresan; Amandine Fargier; Michel Dauvergne; Romain Bosquet; Agnès Jullien; Denis François; Frédéric Labarthe


Transport Research Arena (TRA) 5th Conference: Transport Solutions from Research to DeploymentEuropean CommissionConference of European Directors of Roads (CEDR)European Road Transport Research Advisory Council (ERTRAC)WATERBORNEᵀᴾEuropean Rail Research Advisory Council (ERRAC)Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)Ministère de l'Écologie, du Développement Durable et de l'Énergie | 2014

Overview of strategies for reducing CO2 emissions during the use phase of passenger cars

Camila Freitas Salgueiredo; Olivier Orfila; Guillaume Saint Pierre; Alex Coiret; Pierre-Olivier Vandanjon; Philippe Doublet; Stéphane Doncieux; Sebastien Glaser


Transport Research Arena (TRA) 5th Conference: Transport Solutions from Research to DeploymentEuropean CommissionConference of European Directors of Roads (CEDR)European Road Transport Research Advisory Council (ERTRAC)WATERBORNEᵀᴾEuropean Rail Research Advisory Council (ERRAC)Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)Ministère de l'Écologie, du Développement Durable et de l'Énergie | 2014

Influence of railway gradient on energy efficiency of high speed train

Romain Bosquet; Pierre-Olivier Vandanjon; Maxime Gautier; Alex Coiret; Olivier Cazier


Road and Rail Infrastructure V | 2018

Ecodriving potential of roads according to their speed sectioning : Bosnia and France cases

Emir Deljanin; Pierre-Olivier Vandanjon; Alex Coiret; Samir Causevic


Proceedings of the International Conference on Road and Rail Infrastructure CETRA | 2016

Ecodriving Potentiality Assessment of Road Infrastructures According to the Adequacy Between Infrastructure Slopes and Speed Limits

Alex Coiret; Pierre-Olivier Vandanjon; Ana Cuervo-Tuero


Transport Research Arena (TRA) 5th Conference: Transport Solutions from Research to DeploymentEuropean CommissionConference of European Directors of Roads (CEDR)European Road Transport Research Advisory Council (ERTRAC)WATERBORNEᵀᴾEuropean Rail Research Advisory Council (ERRAC)Institut Francais des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)Ministère de l'Écologie, du Développement Durable et de l'Énergie | 2014

Experimental assessment of wind influence on high-speed train energy consumptions

Alex Coiret; Pierre-Olivier Vandanjon; Romain Bosquet; Tristan Soubrié; Guillaume Baty


Proceedings of the International Conference on Road and Rail Infrastructure CETRA | 2014

Comparative Wind Influence on Use Phase Energy Consumptions of Roads and Railways

Alex Coiret; Pierre-Olivier Vandanjon; Romain Bosquet; Agnès Jullien

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