Many countries, especially China, have extensively promoted liquefied natural gas (LNG) to replace diesel in heavy-duty vehicles for to achieve sustainable transport aims, including carbon peaks and neutrality. On the basis of not changing the shape of the body and the aerodynamic kit, the car is put forward to shorten the running time of the car and improve the comprehensive performance of the car, so as to improve the performance of the car in the race. Moreover, the pitching moment is reduced by 82.34%, and the aerodynamic characteristics and aerodynamic efficiency of the racing car are obviously improved. The results show that, after the modification of the aerodynamic parameters, the critical speed of the car when cornering is increased, the maneuverability of the car is improved, the horoscope test time is reduced by 0.525 s, the downforce of the car is increased by 11.39%, the drag is reduced by 2.85% and the lift-to-drag ratio is increased by 14.70%. Meanwhile, the FSAE car was made the modification of aerodynamic parameter on the basis of handling stability. The closed-loop design process of the aerodynamics of the FSAE racing car was established, and the joint study of aerodynamic characteristics and handling stability of racing car under different body attitudes was realized. The FSAE racing car of Jilin University was taken as the research object, and this paper combines the wind tunnel test, the numerical simulation and the dynamics simulation of the racing system. Therefore, the effects of aerodynamics have a more significant impact on handling stability. Under changing conditions, racing wheels can withstand greater lateral and tangential forces. When the wheel is subjected to the vertical load generated by the aerodynamic device, the ultimate adhesion capacity of the wheel is improved. For racing cars, the aerodynamic force on the aerodynamic device ultimately acts on the tires through the transmission of the body and the suspension. As the main research content of racing cars, aerodynamics has received extensive attention from foreign teams. With the rapid development of FSAE, the speed of racing cars has increased year by year. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them. PDF is the official format for papers published in both, html and pdf forms.You may sign up for e-mail alerts to receive table of contents of newly released issues.Issues are regarded as officially published after their release is announced to the table of contents alert mailing list.In this paper, we predict the vibration and noise caused by the electromagnetic vibration source based on the electromagnetic characteristic analysis of the traction motor, which is the core of the traction system, and understand its effects. Therefore, mutual interference due to vibration and noise between each part is a problem. As eco-friendly mobility develops, the traction system of mobility is taking an electrical form. There is especially an increasing amount of interest in eco-friendly mobility that contributes to the reduction of global warming, and the eco-friendly mobility market is increasing rapidly. Public concern about environmental problems such as global climate change has recently grown, and various technologies have been considered.
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