Adaptive Smart Control Method for Electric Vehicle Wireless Charging System

Abstract

In order to shorten the wireless charging time of electric vehicles (EVs) and achieve stable charging, an adaptive smart control method for EV wireless charging is proposed in the paper. The method dynamically tracks the rechargeable battery state during the whole charging process, realizes multi-stage charging of constant current (CC) or constant voltage (CV) by switching two kinds of compensation networks of bilateral L3C and L3C-C, and regulates the charging voltage and current to make it as close as possible to the battery charging characteristic curve. This method can be implemented because the voltage source connected to the coupler and the compensation networks of bilateral L3C and L3C-C have the CC and CV source characteristics, respectively. On the basis of the established adaptive smart control system of EV wireless charging, the experiments of wireless data transmission and adaptive smart charging were conducted. The results showed that the designed control system had a response time of less than 200 ms and strong anti-interference ability and it shortened the charging time by about 16% compared with the time using traditional charging methods, thereby achieving a fast, stable, safe, and complete wireless charging process.

Optimized Speed Control for Electric Vehicles on Dynamic Wireless Charging Lanes: An Eco-Driving Approach

“…Liu et al (2021) investigated the optimal location and tariff of dynamic wireless charging sections for electric vehicles to minimize the total social cost within a given budget. The main problem of the traffic system is to design energy-optimal wireless charging speed control by guiding the vehicle travel speed and rated charging voltage (Gong et al, 2018;Tan et al, 2019). Zhang et al (2021a) designed the location, power, and length of DWC lanes and proposed an ecodriving strategy for electric, connected, and autonomous vehicles to reduce the cost and range of vehicle trips near signalized intersections.…”

A Comprehensive Study on Electric Vehicle Charging Infrastructure

“…An adaptive smart control system for EV wireless charging system is presented in (26). The charging method used was based on battery characteristic curves.…”

A Multimodal Modulation Scheme for Electric Vehicles’ Wireless Power Transfer Systems, Based on Secondary Impedance

“…Previous studies have also studied and optimized the output power in the EV-WPT system [15,16]. In a separate study, an adaptive smart control method for EV wireless charging has been proposed to shorten the wireless charging time of electric vehicles (EVs) and achieve stable charging [17]. It has been found that the majority of studies deal with the design and optimization of the charging process under one or several constraints.…”