World Electric Vehicle Journal, Volume 8, Issue 2

Electric Vehicle (EV) charging methods have evolved over the past two decades to reflect the radical evolution of EVs. In some cases these methods have been of varying usefulness to the EV driver. DC fast charging, which made a brief appearance in th...

In battery electric vehicles the battery system has to satisfy demanding requirements. On the one hand, high power capabilility has to be provided for varying states of charge and temperature. On the other hand, the battery system should achieve a ma...

This study defines a process to devise random power spectral density (PSD) profiles that are representative of 100,000 miles of UK customer electric vehicle (EV) usage utilising vibration measurements from three contemporary EV’s, for undertaking vib...

Energy and power fade of lithium-ion batteries over time is a cause of complaints from Electric and Hybrid vehicles customers. Car manufacturers strive to improve accuracy of battery performance degradation predictions, in order to reduce warranty co...

Path dependence degradation detection is getting lot of attention due to high demand of long lasting batteries for applications with sporadic usage such as electric vehicles. In this regard, this work presents a study of the degradation mechanism of...

This paper introduces a novel methodology for analysis in the frequency domain. This methodology looks to the battery from a different point of view and covers aspects of the battery that is often neglected in other works and analysis battery precise...

One approach to influence the current flow through the battery pack is to implement switching circuits. Two switching elements are necessary for each cell-stage to be bypassed or activated. This allows active load management. Thus the utilisation of...

(SoH) estimation is an important feature since aging introduces degradation in supercapacitors’ performance, which might eventually lead to their failure. The diagnosis model is based on a sliding mode observer as a well-known technique for its high...

This paper presents the MOBICUS project experiment protocols with some first results. Twelve partners from companies and research labs have joined forces to conduct a large study on lithium-ion batteries (LIB) aging under real automotive conditions....

This report highlights the results of a project carried out at the National Research Council of Canada (NRC), with the overall objective to address the major issues of the Li-air battery technology and assemble a multi-electrode pilot-scale prototype...

Battery Management Systems (BMS) were introduced into Li-ion battery packs to serve several purposes, among which assertion of the small variations of the cells state of charge and increase of their life cycle. This paper offers a complete real-time...

National Research Council Canada (NRC) has been reorienting its fuel cell activities towards manufacturing challenges. Some challenges in industrialization of fuel cell manufacturing concern quality control, supplier development and process developme...

NRC developed an innovative process for efficiently producing one of the PEMFC key components; the polymeric electrolyte. The process developed is based on the use of bifunctional additives and highthroughput melt-processing technologies. This work...

To exceed the top-level fuel efficiency of the 2009 Prius, a new motor was developed for installation in compact class hybrid vehicles including the new Prius. For the stator, segment coil stator with distributed winding was developed and achieved we...

In order to increase the performance of permanent magnet electrical machines and/or reduce cost, improved manufacturing techniques are continuously being searched for by machine designers. Segmenting the stator core offers the possibility to simplify...

The U.S. Department of Energy (DOE) through its Vehicle Technologies Office (VTO), often in close partnership with industry, has supported the development/deployment of cleaner, more efficient automotive technologies with electric drive systems. This...

Switch reluctance (SR) motors attract attention as a motor that does not use permanent magnet material. So it is a strong candidate for electrical vehicle (EV) application. In EV application axial flux machines are preferred over radial flux machines...

This paper proposes a driving-scenario oriented optimal design of an axial-flux permanent-magnet (AFPM) motor for an electric vehicle. The target torque and speed (TN) curve is defined as three operation zones— constant torque, maximum direct current...

This paper presents a study of the magnetic leakage field of a 7 kW wireless electric vehicle charging (WEVC) system. The leakage field was measured in different test configurations and environments. Typical system parameters, such as coil offset and...

This paper focuses on dynamic wireless power transfer for electric vehicles and proposes a vehicle-side control method for real-time power control and efficiency maximization. The proposed control strategy and controller design are presented based on...

The effectiveness of future time of use (TOU) rates to enable managed charging depends on the vehicle’s flexibility and the benefits to owners. This paper adopts opportunity, delayed, and smart charging methods to quantify these impacts, flexibilitie...

Thirty plug-in electric vehicle (PEV) owners in Toronto participated in the 15-month ChargeTO program, which actively curtailed their vehicles during charging. The intent was to demonstrate the technical feasibility of the smart-charging system and e...

With the advance of manufacturing technologies and increasing attention on environment protection, electric vehicles (EVs) are expected to see a fast development. However, large adoption of EVs may impose a high power demand on the grid and may affec...

CALSTART recently completed a Best Practices in Hydrogen Fueling and Maintenance Facilities for Transit Agencies publication for the Federal Transit Administration. The objective of the project was to create a high-level resource that advances the ad...

Although charging infrastructure standardization has come a long way and publicly accessible infrastructure has been deployed in several countries, the standardization process is still going on and several issues remain open. This article aims to hig...

This paper provides an overview of the Standards applicable to electric vehicles at the vehicle and system level, including the EVSE, plugs and connectors, and battery pack. Several relevant standard documents are listed, as well as areas of emerging...

One of the most frequently asked questions that a third party safety organization is asked centers on “What standard applies to EV infrastructure products?” This paper will outline the various standardization activities for charging infrastructure fo...