基于自适应模糊PI的汽车直接摆力矩控制研究.pdfVIP

学兔兔 汽乍 用技术 201 5年第1 AUT0M0B I LE APPL I ED TECl{N0LOGY 2O1 5 N0．1 基于自适应模糊PI的汽车直接摆力矩控制研究 王超，石晶，李刚 (辽宁工业大学 汽车与交通T程学院，辽宁 锦州 121001) 摘 要：针对汽车直接横摆力矩摔制，论文研究了基于自适应模糊PI的控制方法。设计了基于自适应模糊PI的附 加横摆力矩决策控制器和基于规则分配的制动力分配器。横摆力矩决策控制器根据汽车横摆角速度期望值和车辆状 态决策m所需的附加横摆力矩，通过规则制动力分配方法进行主动差动制动实现，并采用Matlab／Simulink与CarSim 联合仿真对控制方法进行仿真试验验证。结果表 ：基于自适应模糊PI的横摆力矩控制方法相对于未控制能够使 汽 较好地 踪期望，有效提高汽车操纵稳定性。 关键词：直接横摆力矩控制；自适应模糊PI控制；制动力分配；行驶稳定性 中图分类号：U461 6 文献标识码：A 文章编号：1 671—7988(201 5)01—73—04 Study on vehicle direct yaw moment control based on adaptive fuzzy PI Wang Chao，Shi Jing，Li Gang (AutomobileTransportation Engineering College．Liaoning University ofTechnology,Liaoning Jinzhou 121001) Abstract：For the vehicle direct yaw moment control，adaptive fuzzy PI control is studied in this paper．The additional yaw moment decision controller based on fuzzy PI and braking forces distribution controller based on rules are designed in the paper．According to the reference of vehicle model and the vehicle actual state，the additional yaw moment decision controller can compute additional yaw moment required．The controller is achieved by active differential braking based on the braking forces distribution rules．The control method is verified by using Matlab／Simulink and CarSim CO—simulation． The results show that yaw moment control based on adaptive fuzzy PI control makes the vehicle follow the desired values be~er and enhance the vehicle stability compared with no contro1． KeyWords：Direct yaw moment control；Fuzzy PI control；B