Mingde Gong, Jiaming Bi, Haoran Yang, Xueliang Xu, Tianshuo Sun
{"title":"Balance control for dynamic displacement of active suspension and ride comfort","authors":"Mingde Gong, Jiaming Bi, Haoran Yang, Xueliang Xu, Tianshuo Sun","doi":"10.1177/10775463241273780","DOIUrl":null,"url":null,"abstract":"This paper aims to optimize the conflicting performance indicators of ride comfort and suspension dynamic displacement by introducing a balance control strategy for active suspension. An unknown nonlinear estimator (UNE) based on a low-pass filter is devised to accurately estimate the unknown nonlinear forces generated by springs and tires. In the designed control strategy, balance controller adjusts the ride comfort when the suspension dynamic displacement is lower than the set threshold, and adjusts the suspension dynamic displacement when it is higher. The boundedness of all variables in a closed-loop system is proved by Lyapunov functions. Simulation investigations and comparison results on different road surfaces are provided to show the satisfactory performance of the designed control method.","PeriodicalId":17511,"journal":{"name":"Journal of Vibration and Control","volume":"12 1","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Vibration and Control","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1177/10775463241273780","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ACOUSTICS","Score":null,"Total":0}
引用次数: 0
Abstract
This paper aims to optimize the conflicting performance indicators of ride comfort and suspension dynamic displacement by introducing a balance control strategy for active suspension. An unknown nonlinear estimator (UNE) based on a low-pass filter is devised to accurately estimate the unknown nonlinear forces generated by springs and tires. In the designed control strategy, balance controller adjusts the ride comfort when the suspension dynamic displacement is lower than the set threshold, and adjusts the suspension dynamic displacement when it is higher. The boundedness of all variables in a closed-loop system is proved by Lyapunov functions. Simulation investigations and comparison results on different road surfaces are provided to show the satisfactory performance of the designed control method.
期刊介绍：
The Journal of Vibration and Control is a peer-reviewed journal of analytical, computational and experimental studies of vibration phenomena and their control. The scope encompasses all linear and nonlinear vibration phenomena and covers topics such as: vibration and control of structures and machinery, signal analysis, aeroelasticity, neural networks, structural control and acoustics, noise and noise control, waves in solids and fluids and shock waves.
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