Charging system for an electric vehicle

An electric Vehicle (EV) charging system comprising,

• an electric vehicle (100) comprising a battery (115), a data transmission device (120), a charging control device (110), a portable transponder (125), a first energy management device (130), and a socket (105) connectable to a charging station (200) by a cable (205);
• the charging station comprising an energy measuring unit (210), a second energy management device (215), and a data transmitter (225), the charging station being connected to a utility (300) by a power supply (220);
• wherein upon connecting the cable to the socket of the electric vehicle, the charging station requests state of charge (SoC), vehicle identification and portable transponder identification for obtaining payment authorization from an internet server (400),
• wherein the charging control device transfers the SoC information to the charging station via said cable, and the portable transponder transfers the vehicle identification and transponder identification information to the charging station via said data transmission device,
• the data transmitter of the charging station transfers the charging station identification, the vehicle identification, and transponder identification information to the internet server (400), and the charging station requests authorization to commence charging the EV,
• the internet server verifies that the transponder identification information matches with the vehicle identification, and transmits the authorization to the charging station, and upon receipt of the authorization from the internet server, the charging station commences charging of the EV.