本发明公开了一种电动汽车无线充电电磁场传能效率优化方法,包括以下步骤:A、在电动汽车底部设置若干个标识部;在停车位地下安装液压升降平台,液压升降平台上铺设发射线圈,发射线圈上串联有可调电容,在铺设液压升降平台区域的外侧安装距离传感器;B、预先计算出线圈总互感值和系统谐振频率对应的最优传能效率;C、当待充电车辆驶入停车位后,根据线圈总互感理论值查询最优传能效率状态下与其对应的系统谐振频率;D、对发射线圈进行通电,计算充电的实际传能效率;E、若实际传能效率小于步骤C中所述最优传能效率的80%,对线圈总互感值和系统谐振频率进行调整;否则开始正式充电。本发明能够实现每辆电动车无线充电传能效率的快速优化。
The invention discloses optimization of energy transfer efficiency of a wireless charging electromagnetic field of an electric vehicle. The optimization comprises the following steps: A, arranging a plurality of identification parts at the bottom of the electric vehicle; a hydraulic lifting platform is installed underground a parking space, a transmitting coil is laid on the hydraulic lifting platform, an adjustable capacitor is connected to the transmitting coil in series, and a distance sensor is installed on the outer side of the area where the hydraulic lifting platform is laid. B, calculating the total mutual inductance value of the coil and the optimal energy transfer efficiency corresponding to the resonant frequency of the system in advance; c, after the to-be-charged vehicle is driven into the parking space, according to a coil total mutual inductance theoretical value, querying a system resonant frequency corresponding to the coil total mutual inductance theoretical value in an optimal energy transfer efficiency state; d, electrifying the transmitting coil, and calculating the actual energy transfer efficiency of charging; e, if the actual energy transfer efficiency is smaller than 80% of the optimal energy transfer efficiency in the step C, the total mutual inductance value of the coil and the resonant frequency of the system are adjusted; otherwise, official charging is started. According to the method, the wireless charging energy transfer efficiency of each electric vehicle can be quickly optimized.
一种电动汽车无线充电电磁场传能效率优化方法
13.06.2025
Patent
Elektronische Ressource
Chinesisch