摘要
为了适应不同路况车况,针对某多轴重型车辆,设计了阻尼连续可调油气悬架,利用流体力学理论,推导了主要阻尼阀的数学模型,在对其结构和原理分析的基础上,建立了悬架系统数学模型。通过仿真及台架试验,验证了阻尼连续可调功能的可行性及悬架系统数学模型的正确性。悬架系统阻尼力与比例溢流阀电压成正比,通过对比例溢流阀电压的控制实现悬架系统阻尼连续可调,为后续的基于整车平顺性的阻尼连续控制研究提供理论基础。
In order to adapt to different road and vehicle conditions, a hydropneumatic suspension with continuously adjustable damping was designed for a certain multi-axis heavy vehicle.The mathematical models of damping valves were developed based on fluid mechanics. Furthermore, a mathematical model of hydropneumatic suspension system was developed based on comprehensive analysis of the structure and working principle. The feasibility of continuously adjustable damping and the mathematical model for the suspension system were verified by means of simulation and bench test. The damping force of hydropneumatic suspension was in proportion to the voltage across the relief valve. The function of continuously adjustable damping was achieved by continuously controlling the voltage across the proportional relief valve, which provides a theoretical basis for the research of continuous damping control based on vehicle ride performance.
出处
《汽车工程学报》
2015年第4期282-289,共8页
Chinese Journal of Automotive Engineering
基金
SX2306重型高机动性战术车辆试制(20120341025)
关键词
油气悬架
阻尼连续可调
阻尼数学模型
台架试验
hydropneumatic suspension
damping continuously adjustable
mathematical model of damping
bench test
