文献类型：期刊文献

英文题名：Finite-time sliding mode tracking control for active suspension systems via extended super-twisting observer

作者：Wang, Gang Chen, Changzheng Yu, Shenbo

第一作者：王刚

通信作者：Wang, G[1]|[144409854558daf5db4ce]王刚;

机构：[1]Guizhou Inst Technol, Sch Mech Engn, Guizhou 550003, Peoples R China;[2]Shenyang Univ Technol, Sch Mech Engn, Shenyang, Peoples R China

第一机构：贵州理工学院机械工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mech Engn, Guizhou 550003, Peoples R China.|贵州理工学院机械工程学院;贵州理工学院;

年份：2017

卷号：231

期号：6

起止页码：459-470

外文期刊名：PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART I-JOURNAL OF SYSTEMS AND CONTROL ENGINEERING

收录：;EI(收录号：20172403767442);Scopus(收录号：2-s2.0-85020376000);WOS:【SCI-EXPANDED(收录号:WOS:000402921900004)】；

基金：The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by National Natural Science Foundation of China (51175350) and Major Projects of Science and Technology Innovation in Liaoning Province (2015106023).

语种：英文

外文关键词：Finite-time control; active suspension systems; sliding mode control; super-twisting algorithm; disturbance observer

摘要：In this article, a novel sliding mode tracking control scheme for vehicle active suspension systems with matched and mismatched uncertainties is proposed based on super-twisting concept. In order to stabilize suspension deflection motion to the desired trajectory in finite time, a finite-time sliding mode controller is designed. Specifically, a novel trajectory function is proposed to adjust the suspension performances (e.g. ride comfort, tire dynamic load and suspension deflection). Compared with the first-order sliding mode control method, the proposed tracking control scheme can effectively improve the ride comfort and ensure the suspension deflection constraint. The control scheme requires only the suspension deflection and acceleration feedback and thus is easy to implement. The uncertainties of the active suspension system are considered as a total disturbance term which can be estimated online, and the estimated error can become a vanishing term in finite time using an extended super-twisting disturbance observer. Finally, the proposed control algorithm is applied to a quarter-car active suspension model, and numerical and experimental results are provided to show the merits and effectiveness of the proposed control scheme.