Method, device, and system for charging/discharging electric vehicle

A non-volatile computer-readable storage medium for storing at least one computer program including instructions for, when executed by at least one processor, causing the at least one processor to perform charging/discharging operations in an electric vehicle, wherein the operations comprising:

• determining whether the electric vehicle has passed a power grid border during travel;
• transmitting information on a current travel path and information on a currently set area code to a server in response to a determination that the electric vehicle has passed the power grid border;
• receiving an area code update request message containing information on a new area code and a charging/discharging fee rate policy corresponding to the new area code from the server;
• updating a charging/discharging schedule based on the charging/discharging fee rate policy corresponding to the new area code;
• and
• performing the charging/discharging with a charging station based on the updated charging/discharging schedule.

An electric vehicle comprising:

• a battery;
• a navigation system for setting a travel path in response to an input of a user;
• a vehicle communication terminal in communication with an external device via a network;
• an electric vehicle charging controller configured to control charging and discharging of the battery;
• and
• a charging/discharging device for charging or discharging the battery in association with a charging station under the control of the electric vehicle charging controller,
• wherein the electric vehicle charging controller is configured to perform control to:
• determine whether the electric vehicle has passed a power grid border in association with the navigation system during travel;
• transmit information on a current travel path and information of a current area code to a server in response to a determination that the electric vehicle has passed the power grid border;
• receive an area code update request message containing information on a new area code and a charging/discharging fee rate policy corresponding to the new area code from the server;
• update a charging/discharging schedule based on the charging/discharging fee rate policy corresponding to the new area code;
• and
• perform the charging/discharging with the charging station based on the updated charging/discharging schedule.