The Handling Stability Analysis Of Full-Vehicle Based On Characteristics Of Car's Independent Suspension

Along with the popularization of the vehicle, the requirement for the vehicle becomes higher and higher. The favorable handling stability is required as well as the favorable characteristics of economic and dynamics. The handling stability of a vehicle is one of the important characteristics that have effect on the active safety performance of vehicle; therefore, it is always an important subject that how the handling stability is researched and evaluated to gain a favorable active safety performance.First, the simulation models of a saloon car's front suspension and rear suspension systems are established using the ADAMS/View that is the main module of the ADAMS software, and kinematics simulation analysis is carried out. The virtual prototyping whole model of the car is established, including the front suspension, the rear suspension, the steering, the front tire, the rear tire, the engine and the body systems. The handling stability is analyzed, and the steady state cornering test, the steering transient response test of steering wheel step input, return-ability test, the single-line change test and central steering test are carried out. Study on the rolling coefficient of the front suspension system and rear suspension system bases on these results. At last, the rigid-flexible coupling front and rear suspension systems are built for kinematics simulation. A rigid-flexible coupling multi-body model is built for the handling stability analysis of vehicle.