Study On The Handling And Stability Of Formula Racing Car

Excellent handling and stability is the ultimate goal of racing design, handling and stability reflects the design of the car level and sports performance, an important factor in the impact on racing active safety. Dynamic projects occupy a large proportion of the Chinese Formula car race game, good handling and stability performance is a strong guarantee for the racing car to achieve good results. Domestic racing handling and stability is optimized the suspension alignment parameters design or steering system, there is a large lack of access and model parameters established in the study of vehicle handling and stability, and did notconsidered the vehicle simulation of this process optimization. Based on Guangdong University of technology FSAE racing car, do the car handling and stability study.According to the behave of Guangdong University of technology, the first student Formula racing car’ dynamic competition, analysis the suspension, steering, transmission and other factors impact on the car handling and stability as the directly Manipulated implementing agencies of racing car, established the front suspension virtual model based on the first racing car, analysis the shortage of sports performance and do the multi-objective optimization, provide the basis for the2012session racing car suspension design. In the model preparation stage before the vehicle modeling, this article in the collection of the model simulation data and models on the basis the property, analysis the racing tire data with actual performance of the tire to ensure the accuracy of the simulation of the racing car. Use the dynamic simulation software ADAMS Car module, established the first racing vehicle dynamics virtual model, behave verify the with the2011season racing data.Based on the main design parameters of the car design process to design variants, use ADAMS closed-loop control of "car-driver-road" closed-loop system test, according to the GB/T6323.6-1994and the automotive industry standard QC/T480-1999and gives the evaluation score. According to national standard, we run simulation of vehicle controllability and stability test. The analyses how axle load, center of mass height, steering ratio, tire cornering stiffness and tire width influence the controllability and stability performance of FSAE racing car, provides the improvement advice. Contrast the2012racing stadium and the first racing dynamic data, the2012session of the new car’s dynamic performance of a substantial increase, in the highest increase the endurance test lap of18.163seconds, handling and stability on the basis of the first racing been significantly optimized.In this paper, virtual racing product design and simulation analysis as the core, achieve the use of computer simulation software for the FSAE car vehicle dynamics handling and stability simulation analysis, racing steering stability and its influencing factors and laws to shorten the time of design optimization, FSAE racing improve the design has practical significance.