重型车辆防侧翻控制研究  

Study for Anti-Rollover Control of Heavy Vehicles

作　　者：韩雪雯 何锋[1] 陈江生[1] HAN Xue-wen;HE Feng;CHEN Jiang-sheng(College of Mechanical Engineering,Guizhou University,Guizhou Guiyang 550025,China)

机构地区：[1]贵州大学机械工程学院,贵州贵阳550025

出　　处：《机械设计与制造》2018年第7期206-209,共4页Machinery Design & Manufacture

基　　金：贵州省科技计划项目[黔科合重大专项字(2011)6016]

摘　　要：针对重型车辆极限工况下易侧翻问题,建立重型车辆三自由度模型,并利用Trucksim建立被控重型车辆模型,以横摆角速度跟踪误差定义积分形式的切换函数,设计一种基于差动制动的模糊滑模控制器。当横向载荷转移率(LTR)超过侧翻因子时,模糊滑模控制求解出车辆所需的目标横摆力矩,根据制动轮选取逻辑对车轮差动制动。通过Trucksim和Simulink对重型车辆防侧翻控制器进行联合仿真,结果表明该控制器提高了车辆在行驶过程中抗侧翻能力,保证了车辆良好的操纵稳定性和路径跟踪能力。Focus on rollover of heavy vehicles under extreme conditions,model of 3 DOF for heavy vehicles was established,and the controlled model of heavy vehicles was built in Trucksim,the integral form of the switching function was defined by the yaw rate tracking error,the fuzzy sliding mode controller was designed based on differential braking. The fuzzy sliding mode controller for solving the required vehicle target yaw moment when the lateral load transfer ratio（LTR）exceeds the rollover factor,according to the brake wheel select logic to achieve anti-rollover control of the heavy vehicles by wheel differential braking. With co-simulation of software Trucksim and Simulink for heavy vehicles anti-rollover controller,the results show that the controller can effectively improve the ability of anti-rollover of heavy vehicles under extreme conditions and ensures good handling and vehicle route tracking capability.

关 键 词：重型车辆 模糊滑模控制器 侧翻因子 差动制动 

分 类 号：TH16[机械工程—机械制造及自动化] TP399[自动化与计算机技术—计算机应用技术]