The wireless charging positioning system comprises a ground end module and a vehicle end module, the ground end module comprises a ground end controller and a ground end detection coil, the ground end detection coil senses the position of a vehicle end transmitting coil in the vehicle end module, the ground end controller calculates the position information of an electric vehicle, and the position information of the electric vehicle is transmitted to the vehicle end module. The position information is sent to the vehicle end module; according to the invention, rapid positioning can be realized, coordinate information and deviation angle information can be provided, the vehicle coordinate and the deviation angle can be corrected by the vehicle according to the information, so that the ground end module and the vehicle end module are aligned to the maximum extent, and the wireless charging efficiency is optimal; meanwhile, switching of a plurality of position detection coils and a plurality of frequency magnetic induction signals is adopted, the angle information of the electric automobile is detected, the detection range is expanded, only two frequencies are used for time-sharing work in any time period of the ground end detection coil, port resources, responsible for frequency driving, of the ground end can be saved, and the cost of a processor is reduced.
本发明公开了一种电动汽车无线充电定位系统及其定位方法,包括地端模块和车端模块,地端模块包括地端控制器和地端检测线圈,地端检测线圈感应车端模块中的车端发射线圈的位置,地端控制器计算出电动汽车的位置信息,并将位置信息发送给车端模块;本发明能够快速定位,提供坐标信息和偏移角信息,车辆可以根据上述信息修正车辆坐标和偏移角,使地端模块和车端模块最大限度的对齐,使无线充电效率达到最佳;同时本发明采用多个位置检测线圈和多个频率磁感应信号的切换,既检测了电动汽车的角度信息又扩大了检测范围,地端检测线圈在任一时段中,只用两个频率分时工作,可以节省地端负责频率驱动的端口资源,降低了处理器的成本。
Electric vehicle wireless charging positioning system and positioning method thereof
一种电动汽车无线充电定位系统及其定位方法
2022-12-02
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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