中文摘要：

以某新型阻尼可调半主动空气悬架系统为对象,在研究该悬架系统结构与工作机理的基础上,建立了该悬架系统的整车动力学模型,设计了基于模型追踪的整车半主动空气悬架阻尼变结构控制系统,并利用D2P快速原型开发平台设计准滑模变结构控制器.搭建了基于MTS320型道路模拟机的整车半实物试验台架,进行了悬架性能的研究.仿真与试验结果表明：施加控制后,簧上质量加速度均方根值比阻尼状态为＂全不通＂工况时下降19.34%,比＂全通＂工况时上升2.65%;前、后悬架动行程均方根值比＂全不通＂工况时上升33.00%和10.00%,比＂全通＂工况时下降12.50%和8.33%,设计的准滑模控制系统有效地改善了车辆行驶平顺性和乘坐舒适性.

英文摘要：

Taking the semi-active air suspension system of a novel adjustable damping as research object,the whole vehicle dynamic model of air suspension system was established based on the structures and working mechanism.Variable structure control system of vehicle semi-active air suspension damping was designed based on model-tracking,and D2 P rapid development platform was applied to design quasisliding mode variable structure controller.The test bench of semi-physical model was established based on MTS320 road simulator to investigate vehicle ride performance.The simulation and test results show that the sprung mass acceleration root mean square is decreased by 19.34% than that under ″allvalve closed″ damping condition,and increased by 2.65% than that under ″all-valve opened″ damping condition after control.The front and the rear suspension dynamic deflection root mean squares are respectively increased by 33.00% and 10.00% than those under ″ all-valve closed″ damping condition separately,and decreased by 12.50% and 8.33% than those under ″all-valve opened″ damping condition.The vehicle ride performance and riding comfortable performance are effectively improved by the proposed quasi-sliding mode variable structure damping control system of semi-active air suspension.