A method and apparatus for controlling a hybrid electric vehicle to achieve a target life for an energy storage device

摘要

A method of determining a preferred operating gradient for use in achieving a lifetime specification for an electrical energy storage device in a hybrid vehicle is disclosed. A current life status of the electric energy storage device is provided, and a life target for the electric energy storage device is set as a predetermined limit in a predetermined metric at a predetermined life status of the electric energy storage device. With respect to the predetermined metric, a gradient of the lifetime status is then determined that causes the lifetime status of the electrical energy storage device to converge to the lifetime goal.