改进动态矩阵控制在CVT速比跟踪中的应用  

Application of Improved Dynamic Matrix Control to Speed Ratio Tracking of Continuously Variable Transmission

作　　者：薛殿伦[1] 李泉[1] 周云山[1] 

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室

出　　处：《汽车工程》2010年第8期699-702,共4页Automotive Engineering

基　　金：国家自然科学基金项目(50905152);湖南省教育厅科研项目(09C964)资助

摘　　要：针对无级变速器速比跟踪过程中，常规的动态矩阵控制器计算量过大，占用变速器控制单元资源过多的问题，设计了改进的动态矩阵控制器，它以混沌优化算法作为控制器的滚动优化策略，解决最佳控制量实时计算的问题。台架试验结果表明，采用改进的动态矩阵控制器，计算量显著减少，提高了控制的实时性；另外，与PID控制器相比，系统的稳态性能和动态性能都有所提高。In view of the problem of conventional dynamic matrix controller： using too much resources of transmission control unit due to too heavy computation in the process of speed ratio tracking for continuously variable transmission, an improved dynamic matrix controller （IDMC） is designed. It takes chaos optimization algorithm as its rolling optimization strategy to solve the problem of real time calculation of optimal control amount. The results of bench test show that computation load is significantly reduced and the real-timeness of control is improved by using IDMC; In addition, the steady and dynamic performances of the system are enhanced compared to that with PID controller.

关 键 词：无级变速器 速比跟踪 改进动态矩阵控制 混沌优化算法 

分 类 号：U463.212[机械工程—车辆工程]