Abstract: A parallel-series hybrid electric vehicle (PSHEV) model is built up in Matlab/Simulink, and the mode logic of vehicle controller is modeled with Stateflow. Power performance, fuel economy and emissions performance of hybrid are compared by analysis of simulation using the European urban road driving cycle (CYC_ECE_EUDC). The results of simulation show that comparing with the Advisor/Prius, in the same conditions, the model  conforms to PSHEV dynamic requirements and is of correctness and feasibility, what’s more, it uses the energy distribution control strategy, so that the fuel consumption per hundred kilometers is about 5.056L, which is 2.8% less than that of the Advisor/Prius, the emissions of CO and NOx are reduced by 16.9% and 2.7%. The simulation results indicate the effectiveness of the control strategy. The using of PSHEV achieves the purpose of energysaving and emission reduction.

Key words: Stateflow, electric vehicle, fuel economy, emission, analysis of simulation