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This paper focuses on the energy management of battery for electric vehicle applications. The ultra capacitors are used in electric vehicle which protects the batteries from high peak current and therefore extend the life time of battery. The combination of ultra capacitor and battery are used to improve the power density in electric vehicles. The proposed system contains SEPIC converter which reduces...
Electric vehicles have recently received attention due to the environmental and financial implication. However, they are still not popular because of their inconvenience, limited battery capacities and long recharge times. In order to grow popular of electric vehicles, several studies in the field of optimization have been engaged. One of the studies is routing problem for energy-optimized driving...
Automotive sector is one of the main sectors in terms of fuel consumption and environmental damage (pollutant air emissions). A great number of studies has been conducted in recent years on the convenience of a migration from fossil fuel vehicles to electric vehicles, with different approaches and assumptions and, generally, different conclusions. It is difficult, therefore, to make full use of these...
Effects of different design parameters on the performance of a hybrid city bus were studied. A system simulation model of the hybrid city bus was developed and used for studying the effects of drive motor torque and vehicle mass on vehicle performance, fuel consumption and stability during regenerative braking. Increasing the maximum torque by 60 % from the nominal value was found to improve the fuel...
A conversion of an internal combustion engine vehicle (ICE) to an electric drive vehicle (EV) was a project carried out at the Faculty of Electrical Engineering and Computing (FER). This project has lead to valuable conclusions about the ICE to EV conversion, its costs and benefits. The whole process of conversion will be presented in this article, including the applied regulations, total labor and...
This work aims was to assess electric vehicle (EV) user's motivations, daily patterns and vehicle operation and management. The project was promoted by EMEL — Lisbon's mobility and parking management company, and was publicized among Lisbon's EV user's, who were offered, as an incentive, a green permit which allowed them to park for free in the city's metropolitan central area. Data was gathered over...
This paper proposes a method of constructing charging infrastructures in highway rest areas for the propagation and efficient operation of electric vehicles (EV). The supply of EVs was predicted with LPG vehicles as the propagation model. To determine the reasonable capacities, locations, and sizes of the charging stations, the technical trends and commercialization level of charging systems were...
High penetration of variable renewable energy generation such as photovoltaics and wind power generation will cause a supply-demand imbalance in the entire system. The mass deployment of electric vehicles (EVs) and plug-in hybrid vehicles (PHVs) will also cause significant changes in electricity demand. Therefore, controlling and managing the charging time of EVs/PHVs are imperative for power system...
This paper presents a method to estimate the normal load and the cold-load pickup caused by the recharging of electric vehicle (EV) on the distribution transformers. The Monte Carlo simulation method is used to make the estimate in both conditions. The model can calculate the charging load profile with different numbers of customers and different ratios of battery capacity, chargers and car penetration...
In recent years, electric vehicles (EVs) have been widely accepted by general publics due to their low emissions. Particularly, those EVs which are able to be connected to power grid have earned lots of attention. In this paper, a multilayer framework is newly proposed for vehicle-to-grid operation. In this framework those gridable EVs can serve as resources to provide their capacity and energy service...
The design of electrified power trains for use in vehicle propulsion systems is a very difficult topic and thus often discussed in research worldwide. Very much effort has been undertaken to obtain simulation and design tools for entire vehicle development. The designed vehicle has to meet multi-objective criterion where to find an optimum for a specific usage. Facing decreasing resources of fossil...
As is well known, plug-in hybrid electric vehicles (PHEVs) are predominantly dependant on the energy storage system (ESS), compared to regular HEVs. although the series PHEV topology has been recently targeted as the prime choice for PHEV applications, it is unclear as to whether or not it is indeed the most efficient option. This paper models PHEVs in both series and parallel structures by using...
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