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Range anxiety is one of the main obstacles to the wide diffusion of electric vehicles. Better understanding of the vehicle's energy consumption and driving range may help reduce electric vehicles drivers' stress. This work proposes a model-based predictive strategy to estimate the energy driving range of an electric vehicle. The estimation takes into account the specific vehicle parameters, as well...
This paper demonstrates a framework to optimize the investment of dynamic wireless charging (DWC) infrastructure for charging-in-motion services. The services require DWC infrastructure deployed on public roads to extend battery lifespan and reduce battery sizes while increasing driving range simultaneously. Since it would be financially infeasible to have such investments serving only few vehicles,...
The limited energy density in batteries has been a challenge for electric vehicle, which indirectly causes range anxiety among the drivers. Range extender (RE) is seen to be a potential solution for this problem. This paper presents a parametric study on the impact of components sizing (RE power and battery capacity) on the range extended electric vehicle (REEV). Urban (MUDC) and highway (HWFET) driving...
This paper introduces an alternative to present state-of-the-art electric traction drives powered by HV batteries: a maximum of 330 kW can be deployed mechanically by a LV multi-phase system. Both the ability to switch the electric machine's number of pole pairs and a very efficient 60-phase inverter based on MOSFETs promise a dramatic reduction of losses inside the power train. Investigations on...
An analytical estimation of driving range of electric vehicles (EVs) with contactless on-road charging system is presented in this paper. Inductive power transfer (IPT) systems with different configurations (static, dynamic), power levels and road coverage have different (and non-linear) impact on the driving range. A generic methodology has been developed to estimate the driving range of any EV by...
Economic viability of on-road charging strongly depends on the choice of inductive power transfer (IPT) system configuration (static or dynamic charging), charging power level and the percentage road coverage of dynamic charging. In this paper, a case study is carried out to determine the expected investment costs involved in installing the on-road charging infrastructure. Economic implications of...
The available driving range of electric vehicles is strongly affected by environmental temperatures. The primary cause is the poor performance of the battery pack under low temperature. This paper focuses on the study of the temperature-dependent performance of lithium ion (Li-ion) batteries. The battery of one major commercial available electric vehicle is examined. A series of tests including Electrochemical...
Serious environmental pollution caused by internal combustion engines, together with the depletion of fossil fuels, has motivated global interest in eco-friendly energy. Vehicles are the main fossil fuel consumers, to reduce the use of fossil fuels in vehicles; Electric vehicle technology has been developed. The eco-friendly vehicle is the global trend in the automobile industry. However, all-electric...
As the environment pollution is becoming more and more serious and the nature resources have been running out, the electric vehicle plays a more important role in the world. However, it is well known that the inadequate driving range is the inherent limitation that hinders electric vehicles widely. This paper aims to analysis and optimize the low speed electric vehicle material by using hybrid materials...
This paper assesses three typical plug-in hybrid electric vehicle (PHEV) energy management strategies by comparing the average fuel consumptions (AFC) based on the daily driving range data of Beijing. The three different strategies are developed first: with the all-electric charge-sustaining (AECS) strategy, the vehicle is propelled only by the motor until the SOC is depleted; with the fixed blended...
Remaining driving range estimation, as one of telematics basic services, is especially important for electric vehicle. Due to many factors, the range is difficult to calculate accurately. This paper introduces an estimation method, in which nine factors are considered, including vehicle current location, remaining battery energy, road network topology, road grade, road link travel speed, acceleration...
This paper investigates the effects of topography and traffic conditions on the energy consumption of electric vehicles using real-world data from the Switch EV trial. This data was used in conjunction with road network data to show how the routing choice and thus energy consumption could change under certain topographical and speed conditions. The results from this paper could be used to better inform...
As future electric vehicles (EVs) emerge, achievable driving range by these vehicles remains a major bottleneck. A battery electric vehicle (BEV) has a fairly limited driving range per charging and takes long time to charge. Moreover, the existing technology only enables stationary charging which means that an EV has to be stationary during the duration of its charge replenishment. The use of contactless...
The efficiency improvement of Hybrid Electric Vehicle (HEV) is strongly dependent on the system-level control of the power flow in both the mechanical and the electrical paths of the vehicle. This is realized by the HEV control strategy. In this paper, a control strategy is proposed for a medium sized Series Hybrid Electric Vehicle (SHEV) designed for campus and gymnasium. The control strategy is...
Regenerative braking is an effective approach for electric vehicles to extend their driving range. The control strategy of regenerative braking plays an important role in maintaining the vehicle's stability and recovering energy. In this paper, the main properties that have influence on brake energy regeneration are analyzed. Mathematical model of brake energy regenerating electric vehicles is established...
This paper proposes a novel energy management system with electronic gearshift and regenerative braking to improve the gross efficiency and driving range of an electric vehicle. This electric motorcycle is driven directly by a wheel motor, which is a custom-designed disk-type axial-flux dc brushless motor. Its stator windings are grouped into four phases and are connected in parallel or serially for...
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