The invention relates to the technical field of electric vehicle wireless charging, and particularly discloses an electric vehicle MC-WPT system integrated with self-powered foreign matter detection and a control method of the electric vehicle MC-WPT system. A self-powered foreign matter detection circuit comprising a self-powered foreign matter detection coil array, a self-powered circuit and a foreign matter detection circuit and a self-powered foreign matter detection controller are designed; after a foreign matter detection mode is started, the self-powered foreign matter detection controller controls more than one self-powered foreign matter detection sub-coil to be in a self-powered mode and more than one self-powered foreign matter detection sub-coil to be in a foreign matter detection mode. And the self-powered foreign matter detection sub-coil in the self-powered mode can supply power to the self-powered foreign matter detection controller to further generate an excitation signal source required by foreign matter detection to act on the foreign matter detection circuit in the foreign matter detection mode, so that self-powered foreign matter detection is realized.
本发明涉及电动汽车无线充电技术领域,具体公开了一种集成自供电异物检测的电动汽车MC‑WPT系统及其控制方法,通过设计包括自供电异物检测线圈阵列、自供电电路和异物检测电路的自供电异物检测电路,以及自供电异物检测控制器,自供电异物检测控制器在开启异物检测模式后,控制1个以上自供电异物检测子线圈处于自供电模式,以及1个以上自供电异物检测子线圈处于异物检测模式,而在自供电模式下的自供电异物检测子线圈可为所述自供电异物检测控制器供电进一步生成异物检测所需的激励信号源作用于异物检测模式下的异物检测电路,实现异物检测的自供电。
Electric vehicle MC-WPT system integrating self-powered foreign matter detection and foreign matter detection method thereof
集成自供电异物检测的电动汽车MC-WPT系统及其异物检测方法
2023-10-20
Patent
Electronic Resource
Chinese
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