基于PID控制器的麦弗逊悬架联合仿真研究  

Co-simulation Research of Macpherson Suspension Based on PID Controller

作　　者：洪昊[1,2] 陈秀萍[3] 王孝鹏[1,2] 吴龙[1,2] 

机构地区：[1]三明学院机电工程学院,福建三明365004 [2]机械现代设计制造技术福建省高校工程研究中心,福建三明365004 [3]漳州理工职业学院,福建漳州363000

出　　处：《三明学院学报》2016年第6期51-56,共6页Journal of Sanming University

基　　金：福建省省属高校科研专项基金(JK2014048)

摘　　要：通过实验测出磁流变阻尼器在不同电流作用下的力与速度关系的阻尼系数特征数据,将阻尼数据导入到麦弗逊悬架多体动力学模型中模拟真实悬架的工作状态,计算簧载质量速度及其变化率作为主动悬架控制的输出量;半主动悬架采用PID控制器;在MATLAB搭建悬架系统联合仿真模型,计算结果表明:采用PID控制器在各不同车速阶段对改善悬架的总体性能有明显作用,车身垂直加速度、悬架动行程、俯轮胎动行程在低频阶段改善突出,提升整车在不同车速范围内乘坐舒适特性。MRF damper damping characteristic data at different current role of force and velocity is measured through experiment. The real state of suspension of work is simulated by importing data into McPherson suspension damping multi-body dynamics model. Sprung mass velocity and its rate of change as the active suspension control output is calculated. PID controller is adopted in semi-active suspension, suspension system co-simulation model is built in MATLAB. The results show that： the use of PID controller in various stages of vehicle speed plays a significant role in order to improve the overall performance of the sus- pension, Vertical body acceleration, suspension dynamic travel, overlooking the tire dynamic stroke are improved prominently in the low fxequencies, which can enhance the characteristic of vehicle-riding comfort in different speed ranges.

关 键 词：磁流变阻尼器 麦弗逊悬架 路面模型 PID 联合仿真 

分 类 号：U463.33[机械工程—车辆工程]