摘要
提出一种基于电动静液压作动器EHA(Electro-Hydrostatic Actuator)的汽车主动悬架结构。在分析EHA作动器原理和汽车结构基础上,建立了EHA作动系统模型和1/4汽车悬架模型,设计了用于主动悬架的模糊控制算法,在以单频信号作为激励源情况下进行了仿真研究。开发了主动悬架DSP控制器,研制了EHA汽车主动悬架物理样机和试验台架,并进行样机台架试验研究。结果表明,EHA主动悬架明显地改善了汽车行驶平顺性和操纵稳定性,进一步证明了控制算法和EHA主动悬架样机的的可行性和有效性。
A new kind of vehicle active suspension was presented based on Electro-Hydrostatic Actuator (EHA). According to the analysis of EHA principle and vehicle structure, EHA system model and quarter-car model were respectively established. Fuzzy control adgorithm for active suspension was designed and EHA active suspension was simulated under sinusoidal inputs. In addition, DSP controller for active suspension was made and physical prototype and test bed of active suspension were developed. Finally, bench tests of active suspension prototype were completed. The experimental results indicate that EHA based active suspension improves ride comfortness, handling and stability of vehicle, and prove the feasibility and availability of control algorithm and active suspension prototype.
出处
《振动与冲击》
EI
CSCD
北大核心
2008年第3期165-170,共6页
Journal of Vibration and Shock
基金
西北工业大学科技创新基金(M450211)资助
关键词
主动悬架
DSP控制
EHA
模糊控制
试验研究
active suspension
DSP control
EHA
fuzzy control
experimental investigation
