The Matching Of Energy Sources In Hybrid Energy Sources EV

Now, the research of EV is in a difficult time. The key solving the problem is to improve the performances of energy sources. At the present status of EV technologies, none of the available energy sources can solely fulfill all the demands of EV,which is energy and power enough in the driving of EV. For solving the problem, employing two or more kinds of energy sources is a probable plan, which is so-called Hybridization Energy source. The aim employing hybridization energy sources is to make use of the strongpoint in all kinds of energy sources, to satisfy the demands completely with high energy ratio and high power ratio in the driving of EV. At the same time, increasing the range of drive and improving the power performance. The paper will research the matched structure of two energy sources and the performance changing of EV with the changing of the mass of energy sources.Firstly, the paper analyzed the matched structures of Hybridization Energy sources that employed probably in EV, and summed up the character of the structures. Compared the character of the structures, a few rational structures, which improving the performance of EV, was proposed.Secondly, the math model, which described the relation between the mass of energy sources and the performance of EV, was built. Through analyzing the effect that was caused by the change of energy sources'mass, the optimized strategy to adjust the mass ratio of energy sources was proposed.Finally, two different styles of EV were picked out. According of the parameter of EV, the simulation was completed. Comparing the result of simulation and the data of driving experiment, the model was adjusted. The mass ratio and hybridation ratio was optimized at different aim.