Research On The Match Of Vehicle And Tire Based On Handling And Stablility

How do us produce appropriate tires according to the performance of vehicles and how do us match the appropriate tires by the design type of vehicles is the tire manufacturers and the vehicles designers very concerned question respectively. But, the producting of tires and the matching of tires is Separation on the present stage, the tire producters assess and product tires only aim at the tire itself, they have not related closely with the performance of vehicles. Moreover, the vehicles designers choice tires passively when they design the vehicles, they can not be able to match appropriate tires at the beginning of the designing by the basis type localization of vehicles and the characteristic of tires. Therefore, this article needs to solve two problems:to instruct the tire manufacturers produce appropriate tires according to the performance of vehicles; The vehicle designers match appropriate tires according to the localization of vehicles and the characteristic of tires (this article mainly aims at C level passenger vehicle).Math on the tires and vehicles meets the first question is the assessment of the tire handling and stability. Complete the above task, we should be able to establish a effective assessment system of the tire handling and stability firstly. We will establish an assessment system of vehicle handling and stability by the localization of vehicles and the characteristic of tires. After we establish the assessment system, then we need to reseach how the tire characteristic influence vehicle handling and stability. The goal of the research has three reasons:first,let the tire manufacturers Clarify what characteristic of the tires is conform to the vehicles; On the other hand, Provide reference for the vehicle designers how to match tires, and know that which kind characteristic of the tires does conform to the localization of the vehicles. The third aspect is further to discover and withdraw the sensitive objective assessment standard to the characteristic of the tire, on this basis, complete matching of the tire handling stability, this paper consists of the following elements:â… . Correlation between subjective and objective analysis by the initial establishment of objective evaluation system of the tire handling stability; and then on the handling and stability test and evaluation of objective indicators of the kinetic analysis; Finally, two parts, and positioning under the vehicle design, stability of operation. The indicators were classified according to vehicle positioning using objective indicators to describe the subjective feelings of good or bad driver.II. Model of the vehicle to Carsim with carsim and UniTire Model co-simulation, model testing correctly, the tire characteristics of the cars handling stability of the simulation and theoretical research, including changes in the mechanical properties of the front axle tires of the vehicle controllability and stability change the mechanical properties of the rear axle tires of the vehicle handling stability, while changing the mechanical properties of the rear axle tires of the vehicle controllability and stability, and mechanical properties of the tire in the final operating stability of the vehicle were summarized.III. Summarizes the mechanical parameters of the tires on the controllability and stability of the sensitivity of objective indicators, further optimization and the establishment of controllability and stability properties for tire evaluation methods, and further to the mechanical properties of tire and vehicle positioning diagrams, enabling the under car Type the purpose of positioning the tire match.IV. On the target vehicle's tires match the handling and stability are described, for the target vehicle matching the vehicle positioning for its tires, and realized through the comparative analysis of the corresponding tire match for the verification theory.In the course of this study, the authors used the orthogonal optimization methods such as regression analysis and SVM, and the proposed positioning of the tire under the handling and stability evaluation method to study the characteristics of the tire on the vehicle controllability and stability of the impact, and finally completed a preliminary match of the tire handling and stability.