Vehicle Design And Simulation Of Plug-in Hybrid Electric Bus

At present,the deterioration of the natural environment and the shortage of materials and energy have become the important factors of the world's economic development and social sustainable development.The automobile industry is one of the important causes of this problem,so we can understand that the new energy-Car has a very important strategic significance.Among them,the plug-in hybrid vehicles in the longer period of time are showing its industrial prospects and market prospects.In this paper,the research and design of the plug-in hybrid bus and the power matching are studied and analyzed.When the design of the plug-in hybrid bus has been realized,the design of the skeleton,exterior shape,internal seating and power distribution of the hybrid bus has been completed according to the specific characteristics of the bus target condition..Respectively,on a variety of different components in different working conditions to start a comprehensive and detailed analysis.Based on the comprehensive analysis of the power output characteristics and operating efficiency characteristics of each power unit of the hybrid power system,based on the dynamic demand of the target vehicle,the system is mainly based on the parameters matching of the hybrid power system Methods Develop a comprehensive R&D design.This paper mainly focuses on the development advantages,disadvantages and working modes of plug-in hybrid vehicle,and finally implements the parallel operation mode of the hybrid vehicle.The mathematical model of the vehicle power system is established,and through the Advisor simulation platform for the vehicle to start the data simulation,further on the parallel hybrid vehicle power shop in the auxiliary control strategy to design and implement down to take the hybrid bus The structure of the city bus combined with the characteristics of the working conditions,and then the car's vehicle control strategy to make adjustments.According to the 180km distance traveled by the city bus,the control parameters of the control strategy were calculated and adjusted based on the orthogonal test method,and the minimum fuel consumption of the vehicle was taken as the index Expand the analysis to determine the optimal control parameter combination.Through the introduction of vehicle data into the model to start the data simulation,the simulation results can be learned through the analysis of the plug-in hybrid vehicle dynamic performance and in the typical urban conditions,driving 100 km fuel consumption,and understand the specific engine of the operating point distribution map.Through analysis of the simulation results can be learned,as long as the car's engine,the motor working conditions are in a normal state,will be able to get the best work efficiency.Vehicle control strategy can not only rationally distribute the engine power,and can control the motor start and stop,to ensure that the SOC is maintained in a certain area,the battery capacity must be selected to meet the requirements of the car to travel hundreds of miles;Design method to optimize the control parameters,will be able to achieve better fuel efficiency.