State of Charge Monitoring Method for Battery of Electric Automobile

摘要

A method for monitoring a state of charge of a battery for an electric vehicle according to the present invention includes the steps of (a) inputting initial information of the vehicle; (b) calculating a cumulative charging amount from a point of time at which the charging of the vehicle is started to a preset charging mode switching point; and (c) calculating a charging amount per preset division reference time based on the initial information of the vehicle, in the method for monitoring a state of charge of a battery for an electric vehicle using an AC charger. Accordingly, the present invention can more precisely and effectively monitor the state of charge in consideration of the charging mode switching point.