0000000000303247
AUTHOR
David Bouquain
Review on the aging mechanisms in Li-ion batteries for electric vehicles based on the FMEA method
With the increasing number of sold electric vehicles, the diagnosis of lithium ion traction batteries will become an important topic. For the development of diagnostic concepts, it is of high importance to have a good overview and knowledge of the internal aging mechanisms which happen inside a single cell. This paper presents a review of existing literature on this topic and summarizes the known aging mechanisms using the FMEA method (Failure Mode and Effects Analysis) in order to categorize them and establish the relationship between failure effects and causes. Based on the summarized information, new diagnostic concepts can be developed.
An energy and power based approach toward design of power split for urban hybrid vehicle
This work presents a novel method of analyzing real and artificial urban driving cycles with regard to power and energy needs. The results can be used to facilitate the design of the power split between primary and secondary power sources for hybrid vehicles in urban applications. Based on the analysis of different real and artificial driving cycles three key values are defined that allow predefining the size of the primary and secondary power source.
Coordinated energy management using agents in neighborhood areas with RES and storage
This study proposes a novel coordination mechanism for smart homes in a small-scale neighborhood. This mechanism deploys a price and incentive-based energy management algorithm that considers renewable energy sources and battery storage. The objective of the proposed coordination algorithm is to decrease the electricity bills of the smart homes by increasing renewable energy usage inside the neighborhood, and enabling electricity trading among smart homes. The neighborhood is modeled using multi-agent systems, and heuristic problem solving is used by deploying a genetic optimization and rolling-horizon technique for day-ahead scheduling of the electricity appliances. Simulation results show…
Methanol fuel processor and PEM fuel cell modeling for mobile application
International audience; The use of hydrocarbon fed fuel cell systems including a fuel processor can be an entry market for this emerging technology avoiding the problem of hydrogen infrastructure. This article presents a 1 kW low temperature PEM fuel cell system with fuel processor, the system is fueled by a mixture of methanol and water that is converted into hydrogen rich gas using a steam reformer. A complete system model including a fluidic fuel processor model containing evaporation, steam reformer, hydrogen filter, combustion, as well as a multi-domain fuel cell model is introduced. Experiments are performed with an IDATECH FCS1200™ fuel cell system. The results of modeling and experi…
Autonomy estimation for EV based on road planning software
A methodology to estimate the energy consumption of an electric vehicle is presented. An approach to create a driving cycle based on data extracted from road planning software is developped; it is used to forecast the total cycle energy consumption. Results are compared to the ones obtained from the corresponding actual driving cycle. The influence of road elevation is taken into. Results match with regard to vehicle velocities, power demand and estimated energy consumption, with a maximum error of 10%. It can thus be concluded that road planning-based energy consumption estimation can be a useful tool by providing accurate information to drivers.