Optimal Resonant Beam Charging for Electronic Vehicles in Internet of Intelligent Vehicles
Provides theoretical foundations for optimizing wireless charging efficiency in electric vehicles within the Internet of Intelligent Vehicles, but is incremental as it builds on existing ARBC technology.
The paper derives a closed-form formula for end-to-end power transmission efficiency in adaptive resonant beam charging (ARBC) for electric vehicles, proves the existence of a unique optimal efficiency, and analyzes relationships among key parameters to guide system design.
To enable electric vehicles (EVs) to access to the internet of intelligent vehicles (IoIV), charging EVs wirelessly anytime and anywhere becomes an urgent need. The resonant beam charging (RBC) technology can provide high-power and long-range wireless energy for EVs. However, the RBC system is unefficient. To improve the RBC power transmission efficiency, the adaptive resonant beam charging (ARBC) technology was introduced. In this paper, after analyzing the modular model of the ARBC system, we obtain the closed-form formula of the end-to-end power transmission efficiency. Then, we prove that the optimal power transmission efficiency uniquely exists. Moreover, we analyze the relationships among the optimal power transmission efficiency, the source power, the output power, and the beam transmission efficiency, which provide the guidelines for the optimal ARBC system design and implementation. Hence, perpetual energy can be supplied to EVs in IoIV virtually.