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Contactless charging and communication for electric vehicles

机译：电动汽车的非接触式充电和通信

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摘要

Charging batteries in electric vehicles needs to cover several aspects including electrical safety, the weight of an onboard charger, different types of chargers needed by different types of batteries, low line disturbance with high efficiency, and the influence of the charging process on the lifetime of the battery. Another important problem is the communication between the vehicle and the outside world during the charging process. This article describes a system combining energy transfer and signal transmission in one unit, which is able to solve all of the above-mentioned problems. Minimal power electronic components are installed in the vehicle. The system uses contactless energy transmission employing an inductive high-frequency coupler. The charging process is monitored and controlled by an onboard charge meter, which can communicate with the converter outside the vehicle via the signal transmission included in the inductive coupler. A laboratory setup able to transfer up to 5 kW was built to demonstrate the performance of the system. The efficiency of the overall system, including all filters, converters, and rectifiers, is at a power level of 5 kW better than 92%. The used gelled lead acid battery, 35 Ah and 288 V, was made from 24 battery modules.
机译：电动汽车电池的充电需要涵盖多个方面，包括电气安全性，车载充电器的重量，不同类型的电池所需的不同类型的充电器，高效的低线路干扰以及充电过程对电池寿命的影响。电池。另一个重要问题是充电过程中车辆与外界之间的通信。本文介绍了一种将能量传输和信号传输结合在一起的系统，该系统能够解决所有上述问题。车辆中安装了最少的电力电子组件。该系统使用采用感应高频耦合器的非接触式能量传输。充电过程由车载充电表进行监控和控制，车载充电表可通过感应耦合器中包含的信号传输与车辆外部的转换器通信。建立了能够传输高达5 kW功率的实验室设置，以演示该系统的性能。包括所有滤波器，转换器和整流器在内的整个系统的效率为5 kW，高于92％。所用的35 Ah和288 V胶凝铅酸电池由24个电池模块制成。

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