货运车队悬架超轴距车联预瞄控制系统

根据车队货车运输典型的重复性特征,将车联网理论引入主动悬架控制.首先,提出一种结对车联加地理信息检测的通讯网络构架和方案,降低悬架控制数据通讯的总体需求.然后,采用超轴距预瞄控制方法,基于粒子群优化算法计算最优车距,利用当量参数改进轴距预瞄算法,有效地改善悬架综合性能.最后,通过Matlab/Simulink平台分别对车身加速度、轮胎动位移和悬架动行程3个参数影响悬架性能进行仿真分析,并借助悬架控制车联网,使超轴距预瞄的寻优算法具备更高效率的迭代过程.结果表明:超轴距预瞄具有与轴距预瞄相似的响应特性,在B级路面上的寻优算法具有更高效率的迭代过程.

Vehicular Preview Control System of Suspension Super Wheelbase for Freight Transport Fleet

According to the typical repeatability characteristics of fleet truck transportation, the theory of internet of vehicles(IoV)was introduced into active suspension control. First,the communication network framework and scheme of vehicle coupling with geographic information detection were proposed for the reduction of the overall demand of the suspension control data communication. Then,a super wheelbase preview control method was proposed to calculate the optimal vehicle distance based on particle swarm optimization algorithm,and the wheelbase preview algorithm was improved by using equivalent parameters to effectively improve the comprehensive performance of the suspension. Finally,the performance of the suspension was simulated and analyzed using three parameters: car body acceleration, tire dynamic displacement and suspension dynamic travel by Matlab/Simulink platform. With the help of the suspension control IoV, the super wheelbase preview optimization algorithm has more efficient iterative process. The results show that the super wheelbase preview has the similar response characteristics to the wheelbase preview, and the optimization algorithm on B-class road has more efficient iterative process.