Control strategy for a high voltage battery charge compensation during a driving operation in fuel cell hybrid vehicles

摘要

A system and method for balancing the state of charge of the cells of a battery in an electric vehicle while the vehicle is being driven. The method includes that the state of charge of the battery cells in the battery is monitored and the actual current of the battery is measured. The method also includes that a maximum charge current limit of the battery is determined and the actual battery current and the charge current limit are compared. The method also includes where the charge current limit is modified based on the comparison between the actual battery current and the charge current limit. The method then converts the modified charge current limit to a power charge limit and then overcharges the battery using a small amount of current and the power charge limit so that all cells in the battery are fully charged.