基于稳定状态预测的汽车侧向稳定性控制  

Lateral stability control based on the prediction of vehicle's stable state

作　　者：李绍松[1] 王旭阳 范阳群 于志新[1] 崔高健[1] LI Shaosong;WANG Xuyang;FAN Yangqun;YU Zhixin;CUI Gaojian(School of Mechatronic Engineering, Changchun University of Technology, Changchun 130012, China)

机构地区：[1]长春工业大学机电工程学院,吉林长春130012

出　　处：《长春工业大学学报》2021年第5期385-393,共9页Journal of Changchun University of Technology

基　　金：国家自然科学基金资助项目(51905045);吉林大学汽车仿真与控制国家重点实验室开放基金资助项目(20181101)。

摘　　要：为提高汽车行驶的侧向稳定性,设计了一种考虑车辆稳定状态趋势的新型线性时变模型预测控制(LTV-MPC)方法。该方法利用模型预测控制的转角优化序列对汽车稳定状态趋势进行预测,并基于预测的车辆稳定状态调整轮胎侧偏刚度,实现汽车的侧向稳定性控制。仿真结果表明,该方法能够提高主动前轮转向汽车的侧向稳定性,降低控制器的计算负担。In order to improve the lateral stability of the vehicle,this paper designs a new linear time-varying model predictive control(LTV-MPC)method that considers the steady state trend of the vehicle.In this method,the steering angle optimization sequence of model predictive control is used to predict the steady state trend of the vehicle,and the tire cornering stiffness is adjusted based on the predicted steady state of the vehicle to realize the lateral stability control of the vehicle.The simulation results show that this method can improve the lateral stability of active front-wheel steering vehicles and reduce the computational burden of the controller.

关 键 词：汽车侧向稳定性控制 模型预测控制 稳定状态预测 主动前轮转向 

分 类 号：U461.2[机械工程—车辆工程]