关键词: 插电式混合动力汽车；动力系统；Simulink 建模仿真；动力学

Abstract: This paper takes the existing hybrid electric vehicle as the research object, it presents a construction method for plug-in hybrid electric vehicle powertrain, Simulink software is used to establish the rotation speed module and torque module of driving motor, engine and other main components, it establishes dynamic model by Simulink software. In this article, new european driving cycle (NEDC) and uniform acceleration conditions are simulated and analyzed, this paper verifies the feasibility of the designed power system of plug-in hybrid electric vehicle, this design makes full use of the external electric energy input, and adopts the control strategy of limiting the working range of the engine. Under the premise of engine auxiliary power output, it drives the generator to generate electricity, it increases the cruising range of the electric vehicle, and effectively reduces the fuel consumption and pollutant emissions of the vehicle, and plays the purpose of energy saving and emission reduction.

Key words: Plug-in hybrid electric vehicle; Power system; Simulink modelling simulation; Dynamics