Method for managing electric power in a powertrain system

摘要

A powertrain system includes a transmission (10) operative to transfer power between a plurality of power actuators (56,72) and an output member (64), and an energy storage device (74). A method for controlling the powertrain system includes establishing a first set of electric power limits and a second set of electric power limits for the energy storage device (74), determining a preferred input power from a first power actuator (56) based upon the first set of electric power limits, determining a first set of power constraints for constraining input power from the first power actuator (56) and a second set of power constraints for constraining output power from the output member (64) based upon a second set of electric power limits, and controlling operation of the powertrain system based upon the preferred input power, the first set of power constraints, and the second set of power constraints.