摘要
为了实现对汽车垂向、俯仰和侧倾方向振动的协同控制,提出一种半主动悬架整车协调控制策略。该策略中模糊PID控制器根据车身垂向、俯仰和侧倾方向的振动状态预估出相应的3个期望调整力;通过设计的带有前后轴调控参数的力协调器和转向控制策略,将期望调整力协调到4个磁流变阻尼器并输出可调阻尼力,实现对汽车3个方向振动的协调控制。连续不平路况和离散冲击路况下的试验结果表明,整车的平顺性和操纵稳定性都得到了提高,同时有益于汽车的中性转向。
In order to realize the coordinated control of the vertical, pitch and roll vibration of vehicle, a coordinated control strategy of vehicle semi-active suspension is proposed. In the strategy, the fuzzy PID controllers estimate three adjustment forces according to the vibration state in vertical, pitch and roll directions. Through the designed force coordinator with the control parameters of the front and back axes and the steering control strategy, the expected adjustment forces are coordinated to the four magnetorheological dampers to output the adjustable damping forces and realize the coordinated control of the vehicle vibration in three directions. The experimental results on the continuous uneven and discrete impact road conditions show that the strategy improves the ride comfort and handling stability of vehicle, and is beneficial to the vehicle neutral steering.
作者
郭全民
张豪文
王言
Guo Quanmin;Zhang Haowen;Wang Yan(School of Electronic Information Engineering,Xi’an Technological University,Xi’an 710021,China)
出处
《系统仿真学报》
CAS
CSCD
北大核心
2020年第4期700-708,共9页
Journal of System Simulation
基金
陕西省重点研发计划(2019GY-094)
陕西省教育厅科研计划(14JK1342)。
关键词
半主动悬架
协调控制
模糊PID
力协调器
转向控制策略
semi-active suspension
coordinated control
fuzzy PID
force coordinator
steering control strategy
