摘 要：为提升某轻型商用车的乘坐舒适性，本文对其半主动悬架系统性能展开研究。首先建立整车七自由度模型，并设计天棚阻尼控制算法进行初步验证；然后利用ADAMS/Car软件构建高精度整车多体动力学模型，并验证其精度。在此基础上通过Simulink与ADAMS/Car软件进行联合仿真分析，结果表明：在B级随机路面激励下，相较于被动悬架，基于天棚控制的半主动悬架能使车身质心处垂向加权加速度均方根值降低38.6%。研究证明，本文所述半主动悬架控制策略能有效抑制车身振动，显著改善车辆平顺性，具有明确的工程应用价值。
关键词：半主动悬架；天棚阻尼控制；平顺性；联合仿真；ADAMS/Car
中图分类号：U463.33 文献标志码：A DOI：10.15917/j.cnki.1006-3331.2025.06.005
Performance Analysis and Optimization of Semi-active Suspension for Light Commercial Vehicles
CHEN Lunyang,CHEN Bao
Abstract: To improve the ride comfort of a light commercial vehicle,this paper focuses on its semi-active suspension system.First,it establishes a 7-degree-of-freedom full-vehicle model and designs a skyhook damping control algorithm for preliminary verification.Then it constructs a high-precision full-vehicle multi-body dynamics model using ADAMS/Car and validates its accuracy.Based on this,it conducts co-simulation analysis by integrating Simulink with ADAMS/Car.The results show that,under Class B random road excitation,compared with the passive suspension,the semi-active suspension based on skyhook control reduces the root-mean-square(RMS)value of the vertical weighted acceleration at the vehicle's center of mass by 38.6%.This research demonstrates that the proposed semi-active suspension control strategy effectively suppresses body vibrations,significantly improves vehicle ride comfort,and possesses clear engineering application value.
Key words: semi-active suspension; skyhook damping control; ride comfort; co-simulation; ADAMS/Car
