Manipal Journal of Science and Technology


Since fuels like petrol, coal, and diesel are non-renewable sources of energy, there will be a deficiency of fuels in the future because of the increasing demand for mobility. The latest vehicles for the gasoline and petrol engine technology yield substantial greenhouse gas emissions and therefore create environmental issues. Electric vehicles will give a solution to this problem. Plug-in electric vehicles are implemented, to achieve environment-friendly transport and reduce greenhouse gases. Apart from the advantages, defects such as wear and tear of devices, electric spark, and carbon deposition make electric vehicle’s wired charging less efficient. To make power transfer more flexible, in recent years the trend is to eliminate these cables i.e., by transfer of power without the use of any cables or wires. Wireless transfer is based on the induction principle. Features like the ease of charging, no exposed wires and fearless transmission of power in adverse environmental conditions make wireless charging more attractive. Plug-in electric vehicles often face the problems such as slower charging rate, size, weight, low energy storage capacity, etc. Wireless power transfer technology can resolve all these above problems. This paper reviews the battery-charging infrastructure from wired to wireless charging. Advantages and disadvantages of each technology for EV charging are also discussed, and wireless charging technology for Connected Autonomous Electric vehicle (CAEV) is discussed.

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