Publications related to Regenerative braking

Hybrid Simulator for Capturing Dynamics of Synthetic Populations

This paper presents a novel hybrid framework for generating and updating a synthetic population. We call it hybrid because it combines model-based and data-driven approaches. Existing generators produce a snapshot of synthetic data that becomes outdated ov ...

IEEE2024

Electrodeposition of polyaniline on reduced graphene oxide/cotton yarn with tunable electrochemical performance for flexible textile supercapacitors

Dou Du, Lin Li

Graphene/cotton fibers show significant promise in wearable energy storage due to their low cost, porous structure, and exceptional integration ability into wearable systems. However, the eco-unfriendly reductants and standalone electric double-layer capac ...

Elsevier Sci Ltd2024

Maintenance and optimization of the TCV power supply

Damien Fasel, Ugo Siravo, Jérémie Dubray

The TCV tokamak is powered by a flywheel generator to supply the magnetic coils and the auxiliary heating systems. The generator has just undergone its fourth major overhaul to make it ready for the next ten years, after more than thirty years of almost tr ...

Elsevier Science Sa2024

Multiobjective Vector Modulation for Improved Control of NPC-Based Multi-Source Inverters in Hybrid Traction Systems

Andrea Cervone

The concept of a multi-source inverter (MSI) based on NPC topology was recently introduced for hybrid-electric powertrains to connect several dc sources to the traction load in a single conversion stage without magnetics. This work proposes a new modulatio ...

2022

Disappearance of the extended main sequence turn-off in intermediate age clusters as a consequence of magnetic braking

Tomás Alfredo Trewhela Palacios, Carmela Lardo

Context. Extended main sequence turn-offs are features commonly found in the colour-magnitude diagrams of young and intermediate age (less than about 2 Gyr) massive star clusters, where the main sequence turn-off is broader than can be explained by photome ...

EDP SCIENCES S A2019

Different approaches to improve energy consumption of battery electric buses

Francesco Baldi

Transportation electrification is increasing and recently more focus has been directed on heavy vehicles and especially on city buses. Battery electric buses are inherently more energy efficient than diesel buses and the efficiency can be further increased ...

IEEE2018

Energy Integration On Multi-Periods For Vehicle Thermal Powertrains

François Maréchal, Zlatina Kirilova Dimitrova

Internal combustion engines are the most applied energy converters in passenger cars. In order to increase their efficiency, energy integration techniques are used to recover waste heat. An adapted methodology is required to design the organic Rankine cycl ...

Wiley-Blackwell2017

Updated braking forces for the assessment of road bridges

João Miguel De Oliveira Durães Alves Martins

Safety assessments of road bridges to braking events combine the braking force, acting along the longitudinal axis of the deck, with a vertical load that accounts for the vertical component of the traffic action. In modern design standards the vertical loa ...

EPFL2016

Deriving a load model for the braking force on road bridges: Comparison between a deterministic and a probabilistic approach

Katrin Beyer, André-Gilles Dumont, Marc-Antoine Fénart, Glauco Feltrin

The current provisions for the braking force in the Eurocodes are much more demanding than previously enforced national codes from most European countries. Hence, safety assessments of existing bridges may show a lack of compliance with the new safety requ ...

Springer International Publishing2016

Defining a braking probability to estimate extreme braking forces on road bridges

Katrin Beyer, André-Gilles Dumont, Marc-Antoine Fénart, Glauco Feltrin

A probabilistic approach is necessary to estimate the magnitude of the braking force that compares in terms of return period with the vertical traffic loads present in bridge design codes. A data set from a Danish Field Operational Test served as support t ...

2015

Efficiency of a highway use reservation system for morning commute

Wei Liu

This paper examines the design and efficiency of a highway use reservation system where commuters need reservations to access a highway facility at specific times. We show that, by accommodating reservation requests to the level that the highway capacity a ...

Pergamon-Elsevier Science Ltd2015

Design modification supporting method based on product usage data in closed-loop PLM

Paul Xirouchakis, Dimitrios Kyritsis, Jongho Shin

Thanks to recent technology related to product monitoring and data communication, it is now possible for a company to gather various kinds of product usage data during its operation in a ubiquitous way. However, the application of the newly gathered data i ...

Taylor & Francis Ltd2015

Design and Control of a Modular Multilevel DC/DC Converter for Regenerative Applications

Alfred Rufer, Daniel Montesinos Miracle

This paper compares different cascaded and multilevel topologies to interface supercapacitors to a dc bus in regenerative braking applications. It is shown that the modular multilevel dc/dc converter (MMC) can benefit from both reduced voltage and increase ...

2013

A Shoe-Equipped Linear Generator for Energy Harvesting

Dan Shi, Jianxin Shen

In this paper, a linear tubular generator is presented. It is used for an energy harvesting system equipped in a footwear, scavenging power from forward motion during a walk. Configuration of the generator is studied, and geometric optimization by finite-e ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Multilevel Modular DC/DC Converter for Regenerative Braking Using Supercapacitors

Alfred Rufer, Daniel Montesinos Miracle

Regenerative braking is presented in many electric traction applications such as electric and hybrid vehicles, lifts and railway. The regenerated energy can be stored for future use, increasing the efficiency of the system. This paper outlines the benefits ...

2012

Multilevel two quadrant DC/DC converter for regenerative braking in mobile applications

Alfred Rufer, Daniel Montesinos Miracle

In this paper different cascaded and multilevel topologies are compared for regenerative braking systems using supercapacitors (SC). It shows that the multilevel buck derived topology can beneficiate from both reduced voltage across the inductor and increa ...

2011

Control of a multilevel modular DC/DC converter for mobile applications

Alfred Rufer, Daniel Montesinos Miracle

This paper presents the control design of a multilevel modular DC/DC converter for regenerative braking systems in mobile applications. The proposed control scheme is able to control the energy flow between supercapacitors and the DC link and equalizing th ...

2010

Multilevel DC/DC converter design for mobile applications

Alfred Rufer, Daniel Montesinos Miracle

This paper compares different cascaded and multilevel topologies for bidirectional in current two quadrant DC/DC converters for regenerative braking systems using supercapacitors in mobile applications. The paper shows that the multilevel buck derived topo ...

2010

Comparison of Control Strategies for Maximizing Energy in a Supercapacitor Storage Subsystem

Alfred Rufer, Philippe Barrade

A storage supercapacitor subsystem is studied for insertion in a series hybrid electric vehicle (Fig. 1). This subsystem is composed of a supercapacitor bank and a braking resistor used when the supercapacitor voltage is at its maximum value. Generally, wh ...

2009

Cost Aware Design of Translucent WDM Transport Networks

Sébastien Rumley, Christian Gaumier

Fully-transparent DWDM networks working at 10 Gb/s or more have limited reach. At these high rates, only translucent networks able to fully regenerate the signal when needed can be used to implement long haul transport networks. Since signal regeneration a ...

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