中文摘要：

针对汽车复杂工况行驶对操纵稳定性及平顺性的综合要求,提出了一种基于顶层设计的转向与悬架底盘子系统协同控制策略。首先在底盘系统的顶层框架设计与协同机制研究基础上,建立了综合性能控制分配模型,设计了启发式协商算法;接着以某车多体动力学模型为例进行了脉冲路面上角阶跃转向输入复合工况的SIMPACK/Matlab联合仿真,最后进行整车道路试验。仿真和试验结果表明,基于顶层设计的协同控制策略是可行、有效的,综合改善了车辆行驶平顺性和操纵稳定性。

英文摘要：

For meeting the requirements on the handling stability and ride comfort of vehicle in complex conditions,a steering / suspension cooperative control strategy is proposed based on top-layer design.Firstly,on the basis of the top layer framework design and cooperation mechanism investigation of chassis system,a comprehensive performance control allocation model is built with a heuristic negotiation algorithm devised.Then with the multibody kinetics model for a vehicle as example,a SIMPACK/Matlab co-simulation is conducted with a compound condition of pulse pavement excitation and steering angle step input.Finally real vehicle road tests are performed.The results of both simulation and tests show that the cooperative control strategy based on top-layer design is feasible and effective,concurrently improving the ride comfort and handling stability of vehicle.