| With the global oil crisis, the greenhouse effect and environmental pollution problems have become increasingly serious, the development and application of new energy vehicles has become a major trend of the development of world’s car. In recent years, in our country the policy of encouragement and promotion, domestic pure electric vehicles has been rapid development in the past two years.The battery cost is high, the charge time is long, the battery life is short and the driving range is short and so on are the main factors that restrict the rapid development of pure electric vehicles. And the positive development of electric bus technology is also worth to improve and in-depth study of the problem.This combination of pure electric bus development requirement of an enterprise, analyzed the calculation and Simulation of dynamic parameters matching. First of all, on the basis of pure electric bus basic parameters and design requirements of vehicle motor power battery are analyzed and selection of two speed transmission, the transmission ratio calculation. Then, the dynamic impact of battery configuration on the bus front and rear axle weight and centroid based method using Catia 3D modeling, analysis and optimization of the space layout of the battery, in order to obtain good braking performance. Finally, using Cruise software simulation analysis of vehicle performance, in order to verify whether the performance parameters of the simulation results meet the design requirements.From the forward design point of view for an electric bus development carries on the analysis computation is proposed based on 3D modeling and analysis of braking performance of battery space layout analysis method, to carry on the simulation analysis to the vehicle performance, and verify the accuracy of the simulation results. The paper provides technical support for the design and development of the vehicle, which can shorten the development cycle and improve the efficiency of the development. |
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