Research On All-wheel Drive Hybrid Electric Airport Snow Sweeper

Since the 21st century,mankind has become increasingly aware that the development of internal combustion engine vehicles will bring serious consequences such as environmental pollution and greenhouse effect.It has gradually become a common choice to replace internal combustion engines with batteries partially or completely.At the same time,the construction of general airports is an important part of ensuring the development of general aviation.For this reason,our country has continuously introduced relevant policies.In 2020,the national annual target number of general airports is 500,and it will reach 2058 by 2030.The number of airports has increased significantly,and the development of airport infrastructure is required to keep up with the pace.Large-scale airport snow sweepers are essential equipment for the normal operation of airports in northern China in winter.Hybrid airport snow sweeper this article talk about is based on the traditional structure snow sweeper.The main work content is as follows:1.Improvements have been aimed at the shortcomings of the traditional structure snow sweeper developed in the early stage.In order to remove the complicated structure of the transmission system,and provide more space for the center roller brush,individual axle drive system is adopted.Because the vehicle only works at a low temperature in winter,the hybrid drive system is adopted to ensure the driving range。2.According to the design requirements and parameters of the vehicle and the gap between the actual measurement and the theory of the traditional structure of the vehicle,the main components of the vehicle hybrid system,include engine,drive motor,generator,power battery,etc.,were selected and parameterized.At the same time,according to the driving conditions of the vehicle,a set of energy management control strategies for airport snow removal was designed.Then a control model was built on the MATLAB/Simulink platform according to the strategy,and a vehicle simulation model was built on the AVLCRUISE software platform according to the vehicle parameters and configuration,and the DLL interface was used to realize the joint simulation of them.3.We designed a working condition for single snow sweeper working in Beijing Daxing International Airport.The working condition is about 6 hours and the driving range is more than 230 kilometers,covering the landing runway and skating runway.The vehicle model was simulated on self-designed airport snow removal conditions and C-WTVC conditions.The dynamic performance was also tested,including 0-60km/h acceleration time,maximum speed.Finally,on roads with different snow densities,the operation simulation was carried out at the speed of 30km/h,and the maximum operation speed of various road conditions,the optimization of engine operating points,and the change of battery SOC were calculated.The rationality of the energy management control strategy and the correctness of the model are verified.