Abstract
A power-split hybrid electric vehicle has the advantages of both series and parallel HEVs by using a planetary gear to combine or split the power of an engine, a motor and a generator. Due to the different operation modes of a power-split HEV, finding a near optimal and practical energy management control strategy is quite necessary. The paper proposes a kind of the ruled-based strategy of a power-split HEV, which can be applied to take simulation analysis for practical driving cycle. The strategy is made up of the optimal distribution strategy of engine operating points, the control methodology of motor torque, the strategy of generator and the charge sustaining-based battery control, respectively. The simulation results compared with the results of the DP-based optimal algorithm show the ruled-based control strategy is valid.
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