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In recent years, stricter regulation of vehicle emissions, increasing fuel prices and government grants have lead to a rapidly growing interest in electrical mobility. However, potential customers are discouraged by the limited range of electric vehicles involving reduced flexibility. This paper presents a modern, real-time capable approach using road data obtained from an advanced navigation system...
Administration in big cities is strongly promoting electric taxis (ETs) by providing purchasing subsidies, accessorial public facilities and many other encouraging policies. However, how to allocate the limited resources to optimize the benefits brought by ETs remains a headache for most researchers. Applying data mining technology, this research gathers real-time vehicle trajectory data of 39,053...
Scarcity of fossil fuels and pressing environmental concerns are the main driving factors towards the paradigm shift from conventional to contemporary means of energy harnessing. Likewise, transportation sector is also undergoing a tantamount change with electric vehicles now seen as an alternate to conventional internal combustion engine vehicles with the additional advantage of supplying power to...
One of the most promising technologies that will be used for charging Electric Vehicles (EVs) is wireless charging. By employing this technology, an EV is able to charge its battery without the need to stop. The charging stations should authenticate the EVs before allowing them to charge their batteries. Traditional digital signature reveals the real identity of the driver and degrades the location...
Optimization based energy management strategies for hybrid electric vehicles require a reliable forecast of the future driver torque demand to yield an appropriate performance in terms of fuel economy and charge sustainability. Apparently, for artificial driving cycles, which are mainly investigated on a testbed, a very accurate preview is available for optimization purposes. In contrast, for real-world...
We consider the coupling introduced between power and transportation systems through Electric Vehicles (EVs). We envision that a number of charging network operators track the mobility of EVs to better estimate their battery charging needs. They use this information to make better-informed decisions on how to participate in the wholesale market of electricity and also to design marginal retail prices...
Plug-In Hybrid Electric Vehicles show great potential for decreasing the fuel consumption on specified routes. However, in many cases the trip destination or the distance until the next charge is unknown for the vehicle. This paper presents a data-driven, online energy management strategy that is based on a trip and speed profile prediction for a receding horizon, which takes personal points of interest...
A 44 kW wireless power transfer (WPT) system is being developed for rapid contactless charging in an electric bus in the 85 kHz band, the candidate frequency for a wireless charging system for light-duty vehicles that is currently undergoing standardization. A two-channel WPT system with currents of opposite phase in the two transmit pads of the channels is introduced to reduce radiated emissions...
Battery and energy management methodologies such as automotive climate controls have been proposed to address the design challenges of driving range and battery lifetime in Electric Vehicles (EV). However, driving behavior estimation is a major factor neglected in these methodologies. In this paper, we propose a novel contextaware methodology for estimating the driving behavior in terms of future...
In this paper design and testing of a solar powered autonomous vehicle which navigates in the presence of obstacles is presented. Obstacle avoidance is the most crucial task of an autonomous system. Hence any autonomous vehicle should have the capability to perform sudden maneuvers when an obstacle is detected. The vehicle has a sensor which estimates the distance at which the obstacle is present...
Efficient energy management in battery operated electric vehicle (EV) is important because of limited range caused by low energy density and inadequate energy storage capacity, insufficient charging stations, long charging time, etc. One of the ways to save energy without incurring any additional cost is to follow an optimal driving strategy by a driver because driving harshness consumes lots of energy...
Depleting fossil fuels and pressing global warming challenges are wreaking havoc towards the sustainable future of mankind. To cater these alarming issues, renewable energy sources and alternate means of energy harnessing have been investigated rigorously for last several decades. Similarly, transportation sector has also seen paramount reforms with hybrid vehicles now seen as potential competitors...
Since the main constraint of electric vehicles is range due to limited battery capacity, the focus for routing these kind of vehicles should be energy consumption minimization. And since energy consumption depends on several aspects, this article introduces a new model for route optimization of Electric Commercial Vehicles, with a realistic energy consumption model based on factors such as road inclination,...
In this paper we propose an optimal Electric Vehicle (EV) charging scheduling scheme with the option of Vehicle-to-Grid (V2G) and Vehicle-to-Vehicle (V2V) energy transfer. In this way, we aim to increase customer satisfaction as well as energy utilization compared to settings where only energy from the grid exists. We assume a single charging station to exist and we present three alternative formulations...
A current challenge for AUV missions is to combine long endurance with high manoeuvrability. The proposed Pipefish AUV is a long endurance AUV capable of high quality survey missions that can deliver multiple hover capable AUVs to sites of interest. The Pipefish AUV and the small vehicles can perform cooperative tasks and reach remote locations without the need for a monitoring surface vessel. It...
Urban transport systems are often not capable to satisfy the numerous needs of urban mobility. Therefore, in recent years great interest has been given in Cooperative Intelligent Transportation Systems (C-ITS), which via two-way communication between road participants and infrastructure allow new solutions addressing transport problems. However, if efficiency improvements only target general traffic,...
The state of charge (SOC) is a critical parameter of a Li-ion battery, which is the most important energy storage in Electric Vehicles (EVs) and the Smart Grid. An accurate on-line estimation of the SOC is important for forecasting the EV driving range and battery energy storage system (BESS) power dispatching. A good estimation of the SOC results from a good identification of the battery parameters...
The tyre pressure is not adequately maintained by the majority of automobile drivers, even though they drop more than one pounds per square inch (PSI) of air pressure a month. The National Highway Traffic Safety Administration (NHTSA) statistics show that low-tyre pressure-related crashes cause 660 fatalities and 33,000 injuries every year. At present, the tyre pressure is monitor from differences...
This article describes concept and design of electronic units of remotely navigated vehicle Democar. Article is mainly focused on hardware part of this vehicle. Desribed are systems of this vehicle and their main functions. Also is included cooperation between systems with procedures for safety operation. In last part are shown results of communication between systems and functional results.
The impact of an increasing share of electric vehicles (EVs) is not fully known. Issues related to engine and battery point out that drivers of EVs may consider different route choices in order to take advantage of energy recovery by regenerative braking, for instance. Because not only travel time but also energy consumption may matter, this work proposes a bi-objective traffic assignment method that...
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