对开路面弯道制动的控制方法  

Control Arithmetic of ABS Under Cornering Braking on Bisectional Road

作　　者：王志忠[1] 陈龙[1] 江浩斌[1] 黄晨[1] 

机构地区：[1]江苏大学汽车与交通工程学院,镇江212013

出　　处：《振动．测试与诊断》2013年第S1期32-36,216-217,共7页Journal of Vibration,Measurement & Diagnosis

基　　金：江苏省高校自然科学研究重大资助项目(09KJA580001)

摘　　要：运用多体动力学软件SIMPACK建立汽车模型,着重研究了汽车在外侧附着系数低、内侧附着系数高路面上弯道制动的情况。通过仿真,在分析轮胎受力的基础上,提出了一种基于转角预测前馈的动态调节内侧车轮最佳滑移率的控制方法,并在Matlab中搭建了模糊控制系统进行联合仿真。结果显示,所提出的控制策略可以改善车辆在这种极限工况下的侧偏位移和横摆角速度,减轻了驾驶员的操纵心理负担,并且车辆的制动距离基本保持不变,保证了制动效能,提高了车辆侧向稳定性。First,a multi-body dynamic model of a full vehicle is established by SIMPACK. Then, braking performance is analyzed based on the outside tires with lower adhesion coefficient and inside tires withhigher adhesion coefficient in cornering braking. A new strategy of optimal slip ratio control, which inner side with low slip ratio, outside with high ratio, is proposed based on front wheel steering angle feedforward. Fuzzy logic controller is designed under the Matlab environment. At last, Co-simulation is carried out. The results show that comparing with the traditional scheme of ABS the proposed control method can significantly improve the path offset displacement, yaw rate, effectiveness in cornering braking of vehicles, and enhance the lateral stability of vehicle on this type road.

关 键 词：汽车工程 转弯制动 对开路面 SIMPACK 模糊控制 

分 类 号：U463.5[机械工程—车辆工程]