METHOD FOR WIRELESSLY TRANSMITTING ENERGY FROM ONE ENERGY TRANSMITTING DEVICE TO A LOAD, AND WIRELESS ENERGY TRANSMITTING DEVICE FOR CARRYING OUT THE METHOD

摘要

The invention relates to a method for wirelessly transmitting energy, in particular in an inductive manner, from an energy transmitting device (14) to a load (18). In at least one method step (46, 50), at least one resonance frequency (f_res) and an actual quality (Q_act,n+1(f_res)) of the wireless energy transmission are detected, and in at least one other method step (54), a decision is made to interrupt the energy transmission from the energy transmitting device (14) to the load (18) in order to detect a foreign object. According to the invention, the decision to carry out the foreign object detection is based on a hysteresis (72) for the limits of the resonance frequency (f_res) and the actual quality (Q_act,n+1(f_res)). The invention further relates to a wireless energy transmitting device (14) for carrying out the method according to the invention.