基于MPC的局部路径规划与路径跟踪控制研究  

Research on Local Path Planning and Path Following Based on MPC

作　　者：常宏 CHANG Hong(School of Automobile,Chang'an University,Shaanxi Xi'an 710064)

机构地区：[1]长安大学汽车学院,陕西西安710064

出　　处：《汽车实用技术》2022年第4期38-41,共4页Automobile Applied Technology

摘　　要：文章主要针对无人驾驶车辆在进行路径跟踪遇到障碍物时,需要局部重新规划出一条可行路径的问题,首先基于车辆点质量模型的MPC局部路径规划算法,得到满足车辆动力学约束并实现避障功能的局部路径,然后在二自由度车辆动力学模型的基础上基于MPC进行路径的跟踪,最后使用Simulink/Carsim进行联合仿真验证,结果表明基于该局部路径规划与路径跟踪算法能够可靠地规划出避开障碍物的局部路径,实现高速下的路径跟踪。This paper focuses on the path tracking of the unmanned vehicle,if the vehicle encounters an obstacle,a feasible path needs to be re-planned locally.Firstly,this paper use the vehicle point mass model and the MPC local path planning algorithm to obtain the vehicle dynamics constraints and Realize the local path of the obstacle avoidance function,and then track the path based on the two-degree-of-freedom vehicle dynamics model and MPC algorithm,and finally the algorithm is verified by Carsim&Simulink platform.The results show that the local path planning and path tracking algorithm can be reliable to plan a local path to avoid obstacles,and realize path tracking while at high speed.

关 键 词：无人驾驶 MPC 局部路径规划 路径跟踪 

分 类 号：U471.15[机械工程—车辆工程]