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Fuel cell electric vehicles have great superiorities in endurance mileage, charging speed and climate tolerance compared to battery electric vehicles. However, a supercapacitor or battery bank is required to maintain a fast-dynamic response, which leads to several hybridization structures for fuel-cell-based electric vehicles due to the unique characteristics of each device, and their performances are also differing. The purpose of this paper is to provide a comprehensive comparison of hybrid powertrain systems for three types of powertrains: fuel cell/supercapacitor passive hybrid, fuel cell/supercapacitor semi-active hybrid, and fuel cell/battery semi-active hybrid. Each powertrain component model is developed from the real components wherever possible, and Honda FCX Clarity fuel cell vehicle is studied as the benchmark. The powertrain energy efficiency under Worldwide harmonized Light vehicles Test Cycle (WLTC) is analyzed and evaluated. The simulation results show that three powertrains have the same energy consumption, and fuel cell/supercapacitor passive hybrid powertrain increases the system efficiency by 2% and 4% in propulsion and regenerative braking, respectively. By contrast, the other two powertrain topologies have similar performance in terms of energy efficiency.
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Direct-current (dc) charging is a method of charging that facilitates rapid energy transfer from the electric grid to plug-in vehicles. This method of charging allows significantly more current to be drawn by the vehicle versus lower rated alternating-current (ac) systems. A combination of vehicles that can accept high-current dc charge and the dc supply equipment that provides it has led to the use of terminology such as "fast charging," "fast charger," "dc charger," "quick charger," etc. DC charging and ac charging vary by the location at which ac current is converted to dc current. For typical dc charging, the current is converted at the off-board charger, which is separate from the vehicle. For ac charging, the current is converted inside the vehicle, by means of an on-board charger. The location of the ac to dc conversion equipment, or converter, shapes the complexity of the equipment design. Regarding ac charging, as previously mentioned, the conversion is on board the vehicle. This allows the original equipment maker (OEM) designed systems to control the charging operation in its entirety. The on-board charger (converter) and battery controller solution is under direct control of the vehicle manufacturer. For dc charging, an entirely new challenge exists for OEMs. The dc charger is now external to the vehicle and requires the vehicle engineers to control an external power device. For the reason of necessary interoperability, standards such as IEEE Std 2030.1.1 are provided to assist developers.
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Digital Media Technology, Digital Learning Technology & Its Application, Health Informatics, Electric Vehicle Technology & Its Application, Robotics & Automation, Security & Biometrics, Games, Serious Game, Digital Media Application, Green Technology, Green and Sustainable Technology, Green Material, Smart Transportation, Smart Motor and Drive, Power Pack Technology, Connectivity.
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Power electronics and electric Motor Drivers Electric Machines and actuators Battery and Battery Management Electric Hybrid Electric and plug in hybrid electric Smart Grid V2G and Electric RailWay Electrification of Heavy duty and off Road Vehicles Cells and Application in Transportation Systems and Components for Sea undersea air and space Vehicles Modeling simulation and Control Standards Regulations and Policies for Transportation Electrification.
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Annotation The 2016 IEEE International Conference on Vehicular Electronics and Safety (ICVES 16) is an annual forum sponsored by the IEEE Intelligent Transport Systems (ITS) Society It brings together researchers and practitioners to discuss research and applications IVCES 16 solicits papers dealing with any aspects of vehicle electronics and vehicle safety.
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Electric Vehicles, hybrid vehicles, fuel cell vehicles.
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