Patent ID: 8190318

Claim:
A hybrid vehicle comprising: a drive train; an electric power source coupled to the drive train and including an electric energy storage device having a state-of-charge; a non-electric power source coupled to the drive-train; and a control system for controlling the transfer of power from the electric power source and the non-electric power source to the drive train over a defined trip route, the control system comprising software stored on a computer readable medium for effecting the steps of: generating a macro-scale state-of-charge profile for the state-of-charge over the defined trip route by: dividing the trip route into a series of trip segments, dividing each trip segment into a series of sub-segments, identifying as electric-only sub-segments that include an amount of acceleration or deceleration above a first threshold and hybrid sub-segments including sub-segments not identified as electric-only sub-segments, selecting a plurality of potential power split ratios for the hybrid sub-segments estimating a change in the state-of-charge for each said electric-only sub-segment and for each of the plurality of potential power split ratios for each said hybrid sub-segment, and performing a dynamic programming optimization to determine a macro-scale estimated change in the state-of-charge for each said hybrid sub-segment; and controlling a power split ratio between the electric power source and the non-electric power source for the defined trip route based on the macro-scale state-of-charge profile.