关键词: 车辆工程, 转向系模型, 干摩擦, 静,动摩擦, 车辆动力学

Abstract:

Aiming to the lack of existing steering model, a steering model used for vehicle dynamic simulation was developed. This steering model established a complete dynamic system consist of wheels, axles, steering tie rod and rack, so the left and right wheels had the ability to coordinate with each other. Stickslip friction model was used to calculate the friction on steering kingpin, so the vehicle model had the ability to resist the small interference from outside. After verified the accuracy of the steering model, the typical operating conditions of external small disturbance were simulated, the simulation results showed that new model had the ability to resist the external small perturbation, and the fidelity of vehicle model was improved.

Key words: vehicle engineering, steering model, dry friction, stick slip friction, vehicle dynamics