The invention discloses a foreign matter detection method, device and system for a wireless charging system, and electronic equipment, and relates to the field of electric vehicles. The method comprises the following steps: when the wireless charging system works, acquiring the electromagnetic induction value of a detection coil in the current target detection time period, wherein the electromagnetic induction value comprises an electromagnetic induction voltage value and/or an electromagnetic induction current value; comparing the electromagnetic induction value of the detection coil in the current target detection time period with the electromagnetic induction value of the detection coil in the previous target detection time period; and when the comparison result meets a first foreign matter judgment condition, judging that the foreign matter exists in the electromagnetic induction area of the wireless charging system. The electromagnetic induction value of the wireless charging system in actual work is used as the comparison value of foreign matter detection, so that the accuracy of foreign matter detection of the wireless charging system is improved.
本发明公开了一种无线充电系统异物检测方法、装置、系统及电子设备,涉及电动汽车领域,该方法包括:当所述无线充电系统工作时,获取当前目标检测时段内所述检测线圈的电磁感应值,所述电磁感应值包括电磁感应电压值和/或电磁感应电流值;将所述当前目标检测时段内所述检测线圈的电磁感应值与前一目标检测时段内所述检测线圈的电磁感应值进行比对;当比对结果满足第一异物判定条件,判定所述无线充电系统的电磁感应区域存在异物。本发明通过将无线充电系统在实际工作中的电磁感应值作为异物检测的比对值,提高了对无线充电系统异物检测的准确性。
Foreign matter detection method, device and system for wireless charging system, and electronic equipment
一种无线充电系统异物检测方法、装置、系统及电子设备
2020-10-16
Patent
Electronic Resource
Chinese
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