The development of automobiles represents for the development of the human civilization and economy for one hundred year.Now automobiles have been closely linked with people's life, and its quantity has been reached about 67 millions.However,so much exhaust induces deterioration of the air quality and the resource of the oil get pinch increasingly. It is an urgent task to the automobile industry to develop new types of automobile with low exhaust and low oil wear. Naturally,Electric Vehicle(EV) become primary among people's choice.Recently,although there are lots of countries which have launched into large fund and many talents to study electric vehicle,dynamic battery and certain key techniques have not brought through effectively until now. The range and charging time of battery limited popularization and development of electric vehicle.Therefore how to select these parts and relational parameters reasonably makes the electric vehicle meet the request of dynamic performance and range which is the goal people studied,then which is the important content of the papers.In this paper, hybrid electric vehicle prototype ChangAn CV9 Landwind Fashion. Initial conditions in the vehicle and the power index for a given situation on the power system design of the main components selection. Dynamic driving range, and battery charging time greatly restricted the development and popularization of electric vehicles.Therefore, Before the battery problem solving, how to reasonably choose the components and the parameters of the optimal match, the same battery condition, to better meet the power requirements and to increase the maximum driving range, has been the pursuit of researchers goal and main purpose of this study.Simulation results show that the design to meet the initial requirements of such dynamic targets, improve the operating efficiency of the transmission system, and make it better with the match between the engine has some practical value. |