In this paper, the advantage of hybrid electric vehicle (HEV) equipped with dual clutch transmission (DCT) was presented. Five HEV simulation models equipped with DCT were built on the basis of AVL CRUISE software. According to different power-train configurations, different control strategies were built by MATLAB/SIMULINK. The advantage and disadvantage of each power-train configurations was analyzed through simulation. The results supplied the foundation for the next step vehicle development.

Planetary power-split hybrid vehicle is a very common structure of hybrid electric vehicle (HEV), which achieves speed and torque double decoupled between engine and wheels. Engine always working on optimal curve is an important reason for low fuel-efficient. Engine speed is controlled by PID, and the optimal loading rate of engine is solved from engine characteristic curves; finally realization of engine working on optimal curve. Offline simulation is used for this algorithm, and comparing with many experimental results demonstrates engine works on operating point; fuel consumption is close to the official fuel consumption of Prius.