摘要
悬架作为现代车辆的关键部件之一,对车辆的平顺性有重要影响。基于ADAMS和MAT-LAB软件分别建立了装备主动空气悬架的1/4车体虚拟样机模型及1/4车体主动PID控制模型,并对PID参数进行了整定。通过联合两个模型对某装备可控悬架的车辆进行了仿真分析,结果表明:基于PID控制的主动空气悬架与被动悬架相比,能够减小车辆振动,改善车辆的平顺性。该方法避免了建立车辆系统动力学方程及状态方程,提高了悬架系统的设计效率,同时为复杂机械系统的控制与仿真提供了新方法。
As one of key parts in modem automobiles, the suspension has great influence on the smoothness of auto- mobiles. Based on the ADAMS and MATLAB method, a 1/4 vehicle air-suspension model and an active vehicle PID control model are established with stochastic road excitation together with the PID parameters definition. And the effects of passive control and semi-active control are investigated based on the ADAMS-MATLAB co-simulation. The result shows that the present active control can reduce the vibration of automobile and thus improve the smooth- ness compared to the passive suspension system. This simulation method improves the efficiency of the suspension design and provides a new way for control and simulation of＇complex mechanical systems while avoiding building their dynamical and state equations.
出处
《机械科学与技术》
CSCD
北大核心
2013年第4期584-588,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
苏州市科技计划项目(SYG201102)资助
