汽车组队距离与速度偏差系统的仿真研究

Simulation Study for Car-String Velocity and Distance Bias Systems

研究汽车组队速度和距离偏差系统的前向行驶扰动的仿真问题 .汽车组队速度与距离偏差系统的线性随机模型可由具有重叠互联、两两汽车组成的子系统模型构成 .利用系统包含原理的约束和集结条件 ,使系统的重叠结构分解 ,根据系统分散次优LQG控制算法 ,对车组速度和距离偏差系统进行的仿真研究表明 ,次优控制在适当选择重叠结构分解的动态平衡因子和性能指标加权阵时 。

The longitudinal forward moving disturbance simulation of the car-string velocity and distance bias system is presented in this paer.The linear and stochastic model of the car-string velocity and distance bias system can consist of overlapping interconnected subsystem models constructed by each pair cars.By using hte conditons of restriction and aggregation of the inclusion principle,the overlapping interconnected structure of the system model is decoupled.Based on a decentralized and suboptimal LQG control algorithm,the simulation studies for the system show that the sub-optimal control can substitute the optimal one when proper choosing the overlapping structure decoupling factor and weight matrixes