Abstract:

Communication is necessary in the electric vehicle (EV) ecosystem for key purposes such as: user authentication, to communicate the maximum allowable charging current, control start/end of charging session, billing, smart charging and provision of roaming facilities. Communication includes the exchange of information between the EV and electric vehicle supply equipment (EVSE), between EVSE and charge point operator (CPO), between CPO and electric Mobility Service Provider (eMSP), between eMSP and the distribution system operator (DSO). Seamless charging operation at any geographic location is achieved using roaming interoperability of the EV charging environment. Basically, it allows the EV user to charge from any public charging station irrespective of whether the EV user is a subscriber of the CPO managing that station.