Plug-in electrical vehicles (PEVs) are becoming very popular among the car manufacturing industry and among researchers. This is due to their multiple benefits which come from their ability to charge and discharge power from and to the power grid. This can help reduce CO2 emission and can be a great source of stabilization to the power system through delivering ancillary services such as spinning reserve, peak power, voltage and frequency regulations. However, this rapidly increasing industry has also introduced various kinds of security and privacy concerns that need to be addressed. Among these security issues is the lack of access control system which can manage who/is able to charge/discharge these types of vehicles particularly in systems where PEVs are driven by multiple drivers such as in fleet management and car renting company. In this paper, we propose architecture, called UConPEV, for managing PEV charging/discharging and controlling the usage of PEVs not only before an operation, but also during and after. We utilize the notion of usage control described in the well-known Usage Control model (UCON).