Electric charging system

Abstract

An electric charging system that connects an electric charging device (12) and an electric vehicle (11) via a charging cable (14) and charges an electric storage device (13) installed in the electric vehicle (11), wherein the electric charging system comprises: - a supply-side processing unit (33, 48) for calculating supply-side processed data by applying a predetermined filtering process at a supply voltage (Vs), a supply current (Is) or a supply power in the electric charging device (12); - a receiving-side processing unit (33, 48) for calculating receiving-side processed data by applying a predetermined filtering process at a receiving voltage (Vr), a receiving current (Ir) or a receiving power (Wr) in the electric vehicle (11);- a feature point assignment unit (33, 48) for assigning a feature point to the input-side processed data by changing at least one parameter from the input voltage (Vs), the input current (Is), the input voltage (Vr) and the input current (Ir); - a data synchronization unit (33, 48) for synchronizing the input-side processed data and the input-side processed data based on the feature point of the input-side processed data and the input-side processed data; and - a determination unit (33, 48) for determining whether a line condition between the electric charging device (12) and the electric vehicle (11) is normal or not.

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