FSAE Electric Racing Car Power System Matching And Experimental Research

FSAE is competition which provides the college students with a platform to apply what they have learned into practice, aiming at training of automotive industry staff and mechanical technique staff. FSAE sets up in China in 2010 and from then on, the FSAE has grown development. In 2013, the pure electric motor racing was taken into competition in China. Today, FSAE has been one of the most widely participate competition in Engineering universities in China. Power system is the core of the racing car, which determines the dynamic performance and the competitive power, directly affects the results of the race, so it is very important to study the matching problem of the motor drive system.Taking the Lighting Pure electric motor racing of Chang’an University as researched project, this thesis, based on the FSAE, intends to get the Power System Matching of the racing program. Introduces the basic theory of the pure electric racing car; and analyses the differences between the formula car and the commercial vehicle from four various aspects which are space structure, physical construction, driving system and electrical system, describing the features of the pure electric racing car and the fuel racing car respectively. And then it compares the characteristics of three different driving forms according to the number of the driving motor. Finally, thesis gives an introduction to some key techniques such as pure electric motor, control technology on motor, power battery and battery management system.This thesis, according to the requirements of the dynamic target of racing and the driving range, aims to matches driving moto, transmission parameters and power battery for the racing cars and complete the modeling for the Xiang Yang Dream Racing Track with the Optimum Lap, setting up the operating mode of the FSA. With the help of Vehicle Dynamics Simulation Software, the author tries to make racing vehicle model sand then the author carries out simulation analysis of the maximum speed of the racing car, 75 m linear acceleration, operating mode of FSAE and competition project. Finally, the simulation results prove that the dynamic matching of racing meets the demand of the design; produced racing car.At the end of this thesis, the author developers a real vehicle test about the racing maximum speed, linear acceleration, travel distance and the durable nature of the racing car on the basis of the requirements of the FSAE and relevant testing standard. Then, the author makes comparisons of the test data and the design target. The maximum speed test data for 145km/h to meet the design requirements; 75 m linear acceleration time of test data than the design target to grow 0.53 s, gap is mainly from the racing machining error; mileage durability test, car can complete 22 km design objectives.