M Car Suspension K&C Characteristic Analysis And Chassis Set-up

Since development spurt of car prices gradually return to the rational development stage, consumers began to focus biased in favor of the pursuit of comfort. However, to improve the comfort chassis also depends on the overall performance matching is reasonable compared with the old foreign car companies, independent car companies still lack mature experience performance chassis development, especially the development experience of the suspension system. The suspension system is an important system chassis, steering stability is an important characteristic of the suspension system, affecting the overall performance of the chassis, and suspension K&C characteristics in turn affects the handling and stability. Therefore, the suspension K&C on vehicle performance has a crucial impact, is currently the autonomous car prices urgent need to master the core technology.This article is the haima car Ltd, a platform through development of new vehicle development process, and the company is positioned as a family car on this requirement, flexible and comfortable handling. Selected same level of performance benchmark car of the benchmark vehicle performance testing, combined with the actual situation of the former platform vehicle performance, setting a new development model of performance goals. The initial prototype of the diagnostic test performance and subjective evaluation, diagnostic test result does not satisfy the set requirements, subjective evaluation of performance is required for the vehicle to continue to optimize and improve performance. So were the former kind of car suspension K&C characteristic analysis, the analysis pointed out that the rubber hardness and elastic stiffness of the main components of the matching element unreasonable, uncoordinated affect vehicle performance.By adjusting the front and rear suspension coil spring rubber hardness and rigidity of the main components, perform chassis tuning and subjective evaluation of the performance before and after the kind of car to get a reasonable match suspension, making the car has improved performance than the original kind of car performance, handling and stability set goals to reach, and ultimately determine the main parts of the rubber hardness and stiffness of the helical spring. Making the kind of car performance than the initial state has significantly improved.