Modeling And Simulation Of Dynamic Characteristics Of Parallel Pybrid Electric Vehicles

Hybrid vehicles have features as ordinary fuel as power device of a conventional car,and with pure electric vehicles powered by batteries,which are combination of derivatives,not only has excellent fuel automobile power performance and long range advantage,but also having advantages as pure electric vehicles,such as using less energy,with small environmental destruction.Therefore,hybrid electric vehicles are a practical choice to deal with a series of problems such as global energy shortage and environmental pollution caused by automobiles.Different power transmissions of the parallel hybrid electric vehicle were analyzed,and its operation mechanism and the detailed structure has carried on the detailed elaboration,through field investigation and went to the enterprise for study.Finally,choosed the selection based on changan automobile model as the basis for study of this article.Combined with the target requirements for parallel hybrid electric vehicle,design requirements to achieve target for parallel hybrid electric vehicle power performance evaluation parameters for the detailed analysis,and the economy evaluation parameters of the parallel hybrid vehicle are analyzed,and analyzes the structure of the vehicle loading situation,the dynamic performance evaluation parameter,degree of fuel emissions and fuel economy evaluation parameters.After analyzing the structure of the parallel hybrid power system,this paper puts forward a method based on the theoretical basis of the dynamic performance and fuel economy,and then calculates the matching parameters of the transmission system,such as engine,transmission,power battery and motor,etc.The parameters of the calculated transmission system are combined with the structure characteristics of the proposed model to determine the relevant parameters of each part of the matching model,and select the appropriate engine,motor,battery and other devices.In this paper,through the analysis of the whole vehicle dynamics and transmission system components of the matched parallel hybrid electric vehicle,the foundation is laid for the modeling of the parallel hybrid electric vehicle.At the same time,the key parts of the transmission system of the matched parallel hybrid electric vehicle are modeled in the ADVISOR software,such as the motor,transmission,engine,battery,etc.,to obtain thecomplete vehicle model.At the same time,using the ADVISOR simulation software to simulation,through analyzing the differences of the simulation results with the target requirement,the result of simulation shows that the key technical parameters and performance simulation results achieved the goal requests,the vehicle dynamic performance and fuel economy performance is better than the original model.For subsequent parallel hybrid vehicle development and technology research,which provides the theoretical support and technical route,reducing the development time of the vehicle.