四轴全轮转向车辆操纵稳定性分析

Handling Stability Analysis of Four-axle Vehicle with All-wheel Steering

建立了四轴全轮转向车辆的线性二自由度车辆模型,进行了理论分析和数学公式推导。以某四轴重型运输车为例,基于零质心侧偏角策略确定转向瞬心位置以及后桥转角与前桥转角的比例关系,并讨论了全轮转向对车辆稳态响应和瞬态响应的影响。

Establish the linear two degrees of freedom vehicle model of four-axle vehicle with all-wheel steering, analyze the theory and deduce mathematical formula. Take a four-axle heavy truck for example, base on zero sideslip angle proportional control to fix on the area of instantaneous turning center and the proportion between rear-axle steering angle and front-axle steering angle, discuses the influence of all-wheel steering on vehicle’s steady-state response and transient response.