汽车四轮转向控制策略研究  

Research on four wheel steering control strategy

作　　者：何浩然[1] 单鹏[1] 李刚[1] 王雨丝[1] 

机构地区：[1]辽宁工业大学汽车与交通学院,辽宁锦州121001

出　　处：《汽车实用技术》2016年第1期32-34,共3页Automobile Applied Technology

基　　金：辽宁省教育厅项目(L2013253)

摘　　要：汽车四轮转向较之常规的前轮转向可提高汽车的操纵稳定性,论文针对汽车四轮转向的操纵稳定性控制问题,设计了一种四轮转向控制策略,实现汽车不同车速下的四轮转向控制。确定了二自由度车辆转向参考模型,进行低速时前后轮转角比例控制,高速时根据参考模型和实车横摆角速度、横摆角速度偏差设计了模糊控制器进行前后转角控制。应用Car Sim和Matlab/Simulink联合仿真,搭建了仿真模型,编写了控制算法,通过仿真实验对控制策略进行了验证。仿真结果表明:设计的汽车四轮转向控制策略使汽车四轮转向相对前轮转向有效提高了汽车的操纵稳定性。Automobile four-wheel steering compared with usual front wheel steering can improve the vehicle steering stability, the paper according to the manipulation stability of the automobile four-wheel steering control problem, we design a four-wheel steering control strategy, implement automobile four-wheel steering control under different speed. Identified two degrees of freedom vehicle steering reference model, carries on the front and rear wheels steering Angle proportional control at low speed, high speed according to the reference model and the real vehicle yawing angular velocity, yawing angular velocity deviation Angle before and after the fuzzy controller was designed to control. Application Car Sim and Matlab/Simulink simulation, set up the simulation model, write the control algorithm, the control strategy is verified by simulation experiments. Simulation results show that the design of the automobile four-wheel steering control strategy to improve automobile four-wheel steering wheel steering relatively effective by the car＇s steering stability.

关 键 词：汽车 四轮转向 比例控制 模糊控制 仿真验证 

分 类 号：U467.3[机械工程—车辆工程]