A method includes operating a hybrid power train having an internal combustion engine and at least one electrical torque provider. The method further includes determining a machine power demand for the hybrid power train, and determining a power division between the internal combustion engine and the electrical torque provider in response to the machine power demand. The method further includes determining a state-of-charge (SOC) of an electrical energy storage device electrically coupled to the at least one electrical torque provider and interpreting a target SOC for the electrical energy storage device in response to a vehicle speed, and determining an SOC deviation for the electrical storage device, wherein the SOC deviation comprises a function of a difference between the SOC of the electrical energy storage device and the target SOC of the electrical energy storage device.