The invention relates to a foreign matter detection device, a foreign matter detection method and a wireless charging system.The foreign matter detection device comprises a ground side coil assembly and a detection assembly, and the ground side coil assembly is located on a charging platform used for bearing a to-be-detected vehicle and comprises a plurality of detection coils; each detection coil can generate an induction electric signal based on an oscillation signal sent by a transmitting coil on a to-be-detected vehicle, and the detection assembly is used for detecting the induction electric signal of each detection coil when the to-be-detected vehicle and the charging platform are relatively static. The relative position information between the to-be-detected vehicle and the charging platform is determined according to the induction electric signals of the detection coils, and whether the metal foreign matter exists on the charging platform or not is judged according to the relative position information and the induction electric signals of the detection coils. And whether metal foreign matters exist on the charging platform is detected, so that the complexity of the wireless charging system is reduced.
本申请涉及一种异物检测装置、异物检测方法和无线充电系统,包括地面侧线圈组件和检测组件,地面侧线圈组件位于用于承载待检测车辆的充电平台,地面侧线圈组件包括多个检测线圈,各检测线圈可以基于待检测车辆上发射线圈所发送的振荡信号产生感应电信号,检测组件用于在待检测车辆与充电平台相对静止时检测各检测线圈的感应电信号,根据各检测线圈的感应电信号确定待检测车辆与充电平台之间的相对位置信息,根据相对位置信息和各检测线圈的感应电信号判断充电平台上是否存在金属异物,本申请不仅可以检测待检测车辆与充电平台的相对位置,还对充电平台上是否存在金属异物进行检测,降低了无线充电系统的复杂度。
Foreign object detection device, foreign object detection method, and wireless charging system
异物检测装置、异物检测方法和无线充电系统
2024-10-01
Patent
Electronic Resource
Chinese
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G01V Geophysik , GEOPHYSICS |
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