四轮转向车辆操纵稳定性仿真分析，首先建立二自由度四轮转向车辆运动微分方程，求解出横摆角速度、质心侧偏角、侧向加速度的传递函数，然后在MATLAB环境中通过M语言编写仿真软件对传递函数的时域与频域特性进行计算，最后将仿真数据与前轮转向车辆仿真数据进行对比分析。(The simulation analysis of steering stability of four-wheel steering vehicles first establishes the differential equation of motion of two-degree-of-freedom four-wheel steering vehicle, and solves the transfer function of yaw angular velocity, centroid side yaw angle and lateral acceleration, and then passes the medium language in MATLAB environment. The simulation software is written to calculate the time domain and frequency domain characteristics of the transfer function. Finally, the simulation data is compared with the front wheel steering vehicle simulation data.)