Method and device for the efficient charging of a vehicle battery

摘要

A method and a device are provided for the efficient charging of a vehicle battery of an electric vehicle by a charging station of a group charging station. The connected vehicle battery, starting from an initial charge state, is charged in accordance with a calculated charge priority value until the charge state of the vehicle battery reaches a selectable charge state. The calculated charge priority values of the vehicle batteries connected at the same time to the charging stations of the group charging station determine which batteries will be charged within a charging interval.

主权项

1. A method for efficient charging of a vehicle battery of an electric vehicle by a charging station of a group charging station, which comprises the steps of:
calculating a calculated charge priority value of the connected vehicle battery of the electric vehicle in dependence on an amount of charge still outstanding until the end charge state is reached and a deviation of an instantaneous charge state of the vehicle battery from a setpoint charge state determined by a charge curve; charging a connected vehicle battery, starting from an initial charge state, in accordance with the calculated charge priority value until a charge state of the connected vehicle battery reaches a selectable charge state; and using calculated charge priority values of vehicle batteries connected at a same time to charging stations of the group charging station to determine an order with which different vehicle batteries will be charged within a charging interval.