|
Abstract: Based on the theory of the synergetic theory and nonlinear dynamics, the nonlinear model of vehicle-tire system and the one-rank Taylor expansion are analyzed, and the potential energy function of vehicle steering system is constructed. Through the analyse of potential energy function surface, the stable region of vehicle cornering system is a limit cycle ex-pressed by the body slip angle and the yaw angular velocity, and the essential reasons of vehicle losing control is explained. Finally, the energy variation tendency of the potential energy function is validated by using the Lyapunov function. And the correctness and the validity of the potential energy function constructed are also proved.
Key words: Vehicle dynamics Cornering stability Synergetic theory Vehicle simulation Nonlinear dynamics
CLC No:
TU461.6
教育部留学基金资助项目([2004]176). Received 20061017, received in revised form 20070424
|