| CPC B60L 55/00 (2019.02) [B60L 53/305 (2019.02); B60L 53/68 (2019.02); B60W 10/26 (2013.01)] | 12 Claims |

|
1. A method of communicating between an electric vehicle, a supply equipment, and a power grid operation server that monitors a power grid, the method comprising:
transmitting, by an electric vehicle communication controller of the electric vehicle, a discharge schedule comprising an amount of energy discharge, a discharge start time, and a discharge finish time to a supply equipment communication controller of the supply equipment or a power grid communication controller of the power grid operation server;
receiving a discharge cost calculated according to the discharge schedule from the supply equipment communication controller or the power grid communication controller; and
initiating a discharge process of the electric vehicle to the supply equipment or the power grid according to the discharge schedule,
wherein the discharge cost comprises an additional calculation cost, in response to a sum of the amount of energy discharge of the electric vehicle and an amount of energy discharge of another electric vehicle being greater than or equal to a reference energy discharge amount.
|