一种半主动悬置离散信号数值积分方法及应用  

A Numerical Integration Method for Discrete Signal Processing of Semi-active Suspension and its Application

作　　者：张旭[1] 刘夫云[1] 邓聚才 陈钟 王越 李栋 ZHANG Xu;LIU Fuyun;DENG Jucai;CHEN Zhong;WANG Yue;LI Dong(School of Mechanical and Electrical Engineering,Guilin University of Electronic Technology,Guilin 541004,Guangxi,China;Commercial Vehicle Technology Center,Dongfeng Liuzhou Automobile Co.,Ltd.,Liuzhou 545005,Guangxi,China)

机构地区：[1]桂林电子科技大学机电工程学院,广西桂林541004 [2]东风柳州汽车有限公司商用车技术中心,广西柳州545005

出　　处：《噪声与振动控制》2023年第1期166-172,共7页Noise and Vibration Control

基　　金：广西新能源物流商用车协同创新研发及成果转化应用资助项目(AA18242036);高性能摩擦离合器关键技术研究与产品开发资助项目(AA18242037);桂林电子科技大学研究生教育创新计划资助项目(2020YCXS008)。

摘　　要：为提高离散信号数值积分方法的精度,针对主动悬置、半主动悬置等振动控制系统中速度信号与位移信号实时获取困难的问题,提出一种实时控制的离散信号数值积分方法与趋势项处理方法。并设计台架试验,进行精度验证,试验结果表明该方法一阶积分速度的精度达到85%以上,极值误差在10%以内,满足振动控制要求;最后将该积分方法应用于半主动悬置天棚阻尼控制策略,开展台架试验与实车试验,对其进行应用验证。试验结果表明半主动控制相比被动控制悬置相关参数有所改善,证明该积分方法及趋势项处理方法在工程应用中的可行性。In order to improve the accuracy of the numerical integration method for discrete signals processing and overcome the difficulty of real-time acquisition of velocity signals and displacement signals in vibration control systems such as active suspension and semi-active suspension, a real-time control discrete signal numerical integration method and trend term processing method are proposed. A bench test is designed to verify the accuracy of this method. The test results show that the accuracy of the first-order integration speed of the method is higher than 85 %, and the extreme error is lower than 10 %, which meets the vibration control requirements. Finally, the integration method is applied to the damping control strategy of the semi-active suspension ceiling, and meanwhile the bench test and the actual vehicle test are carried out to verify the application. The test results show that the relevant parameters of semi-active control are improved compared to passive control suspension, which proves the feasibility of the integration method and the trend term processing method in engineering application.

关 键 词：振动与波 半主动悬置 离散信号 数值积分 趋势项处理 工程应用 

分 类 号：U467.492[机械工程—车辆工程] U463.33[交通运输工程—载运工具运用工程]