CHARGING SYSTEM FOR THE GALVANICALLY SEPARATED CHARGING OF AN ELECTRICAL ENERGY ACCUMULATOR OF A VEHICLE, ELECTRICALLY POWERED VEHICLE, CHARGING STATION FOR A VEHICLE, AND CORRESPONDING METHOD

摘要

The aim of the invention is to a solution for the galvanically separated charging of an energy accumulator of an electrically powered vehicle (3) in a safe and reliable way. In order to achieve said aim, the invention relates to a charging system (1) comprising a primary unit (7) outside the vehicle that has a primary coil for emitting electrical power and also a secondary unit (5) on the vehicle that has a secondary coil coupled to the energy accumulator (2) for receiving the power. At least one sensor coil arrangement (13) is provided with at least one sensor coil (15) which serves for detection of an electrically conductive foreign body (11) located in a power transmission region (10) between the primary unit (7) and the secondary unit (5). An electronic evaluation unit (14) detects the foreign body (11) by means of a variable that is dependent on the inductance of the at least one sensor coil (15).