Abstract: In order to solve the problem that the semi-active suspension control algorithm of a commercial vehicle deteriorates seriously under the condition of discrete impact pavement, the rapid identification method of impact pavement and the damping control method are studied. By analyzing the vibration acceleration of the vehicle passing through the impact pavement, a mathematical model is established to describe and distinguish different types of impact pavement, and a method for identifying discrete impact pavement according is proposed based on this model. Combining these two methods, the semi-active suspension damping control method based on transmissibility is improved, and the parameters are optimized and verified by experiments. The results show that the proposed method can identify the discrete impact in a short time for the discrete impact condition, with a recognition rate of 91.67%, and an improvement effect of 5.27% on the single-transmissibility strategy. Compared with the passive state, the optimization effect of the fast asphalt road and secondary cement road is 12.5% and 12.82%, which further improves the vibration damping effect of the semi-active suspension damping control method based on transmissibility under various working conditions.

Key words: discrete impact pavement; rapid recognition; transmissibility control strategy; semi-active suspension for commercial vehicles; continuously damping control shock absorbers

摘要： 针对某商用车的半主动悬置控制算法在离散冲击路面工况下恶化严重的问题，进行了 对冲击激励快速识别方法以及阻尼控制方法的研究。通过对冲击路面的实车振动加速度进行 分析，建立了用于描述和区分不同种类冲击路面的数学模型，依据此模型提出了一种识别离 散冲击路面的方法，进而对基于传递率的半主动悬置阻尼控制方法做出改进，并进行了参数 优化和试验验证。结果表明，针对离散冲击工况，该方法能在短时间内对离散冲击做出识别， 识别率达到了 91.67%，对单传递率策略的改善效果达 5.27%；在快速沥青路和二级水泥路工 况，相较被动状态分别有 12.5%和 12.82%的优化效果，使基于传递率的半主动悬置阻尼控制 方法在多种工况下的减振效果进一步提升。

关键词: 离散冲击路面；快速识别；传递率控制策略；商用车半主动悬置；连续阻尼控制减 振器