Matching Analysis of Power System of Extended-Range Electric Vehicle

This paper mainly studies the dynamic matching calculation and main parameter design of the whole vehicle. A practical design scheme for power system of pure electric vehicle is proposed and determined. According to the requirements of dynamic performance, the main parameters of the transmission system are designed and matched by using the knowledge of automobile theory. Through the simulation of the design scheme, the dynamic calculation of the scheme is carried out. The matching analysis of power system of extended-range electric vehicles is carried out in this paper. The power performance of pure electric vehicle is analyzed. In the process of power analysis, the data of maximum speed, gradient and acceleration are mainly analyzed, and the simulation results are analyzed. The simulation results show that the method proposed in this paper is effective and reliable. Introduction Electric Vehicle (EV) is an available technique and it can solve the energy crisis and environment pollution. As EV is the 0-emission vehicle powered by vehicle battery, many researches of the EV are springing up all around the world, and EV has developed into the small-scale production for business[1-2]. The developments of EV depend on the development of a variety of sciences and techniques, especially for the dynamic performance and driving range improvements, and costs reduction[3-5]. In consideration of development cost and time, the establishment of simulation model can contribute to the performance analysis of EV. The generation of electric vehicles is accompanied by more and more serious energy problems and environmental problems in the world[6]. The car as the representative of the vehicle is accelerating with the advance of human society[7], the need for a solution to the demand of human development and natural environment restricts the development of today's society, and electric vehicles as the representative of the new energy vehicles is undoubtedly one of the most attractive approaches focus. Transmission simulation software applied in this paper can establish pure electric vehicles and the whole car parameters and simulate the running of the electric vehicle in different working conditions[8-9]. The performance analysis and the design of the transmission system can improve the design, optimization and related parameters of transmission system. Compared with the traditional power system parameter design method, the system has many effective advantages greatly improved the efficiency, such as more accurate modeling and analysis results. Matching Analysis of Power System of Electric Vehicle In a pure electric vehicle, the battery provides the operating energy for the motor, and the power output of the motor passes through the transmission system to the wheel[10]. Therefore, all driving conditions should be calculated to meet the performance requirements of a pure electric vehicle. Starting from the analysis of the force condition of the electric vehicle running, the driving equation is set up, which is the basis for analyzing the driving performance of the electric vehicle. The dynamic output characteristics of the drive system are directly related to the dynamic performance of the vehicle. The power output of the drive system should meet the dynamic requirements of the vehicle. When the electric vehicle is matching parameters, the driving dynamics model of electric vehicle must be first established , and the balance need to be analyzed between power and power in the process of electric vehicle driving. 8th International Conference on Social Network, Communication and Education (SNCE 2018) Copyright © 2018, the Authors. Published by Atlantis Press. This is an open access article under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/). Advances in Computer Science Research, volume 83