Electric Vehicles Reduce Greenhouse Gas Emissions & Energy Consumption

Electric Vehicles
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Electric Vehicles
Electric vehicles (EVs) can reduce high greenhouse gas emissions and energy consumption rates that characterize road transportation. EVs possess other singular advantages over regular petroleum-powered cars in terms of energy efficiency and maintenance. However, electric cars cannot travel far because of their low energy density. Current EVs rely on large batteries and costly infrastructure for their power. As a result of their limited range due to limited energy density, high cost, and long charging times, the penetration of EVs continues to remain low. Of the 17.02 million U.S. vehicle sales in 2019, only 0.33 million (1.9%) were EVs. However, the emergence of dynamic wireless charging promises to overcome these limitations in battery technology and drastically reduce the current reliance on batteries. Dynamic wireless charging can increase penetration of EVs, transform EVs to become fully autonomous, and facilitate the continuous operation of shared autonomous EVs. In sum, while EVs can reduce greenhouse gas emissions and reliance on petroleum, they are encumbered by their poor energy density. This challenge can be solved using dynamic wireless charging.
Dynamic wireless charging involves wireless power transfer between the vehicle and the grid via strongly coupled magnetic responses while the car moves ubiquitously. While mobile energy dissemination can be facilitated by inductive power transfer between a roadside infrastructure unit (wireless power line) and the vehicle, inductive systems require ferrite cores for magnetic flux shielding and guidance. They are therefore fragile, difficult to install, cumbersome, and expensive. Besides, the inductive system functions at comparatively low frequencies to reduce ferrite losses. On the other hand, capacitive systems for mobil...