摘要
为协调车辆操纵稳定性和行驶平顺性,基于底盘系统动力学原理,建立了半主动悬架和电动助力转向的综合模型,对半主动悬架和电动助力转向系统进行集成控制。运用二次反馈法和PID策略分别对悬架的可调阻尼和转向系统的助力进行控制。仿真结果表明,在集成控制情况下,车辆的操纵稳定性和平顺性均优于悬架或转向单独控制的效果。
For coordinating handling stability and ride comfort of vehicle, based on the principle of chassis system dynamics, a combined model for semi-active suspension (SAS) and electric power steering (EPS) is set up for imposing integrated control on the systems of SAS and EPS. Quadratic feedback and PID strategies are used to control the adjustable damping of suspension and the assistant power of EPS respectively. The simulation results show that with integrated control, the handling stability and ride comfort of vehicle are both superior to that with separate control on suspension or steering.
出处
《汽车工程》
EI
CSCD
北大核心
2009年第11期1066-1069,1090,共5页
Automotive Engineering
基金
江苏省高新技术基金项目(BG2004025)资助
关键词
集成控制
半主动悬架
电动助力转向
仿真
integrated control
semi-active suspension
electric power steering
simulation