华东交通大学学报2016，Vol.33Issue(3)：54-59,6.
非线性主动悬架backstepping控制研究
Research on Backstepping Control of Nonlinear Active Suspension
摘要
Abstract
Because the suspension damping is nonlinear in active suspension control system, the error between the control model and the actual one may exist due to linearization of suspension damping by way of classic con-trol method. According to damping characteristic based on a shock absorber test, the study did piecewise fitting in order to restore the damping’s nonlinearity. In light of hydraulic actuator dynamics, a dynamic model of a quarter suspension was established. By use of backstepping nonlinear control method, a controller was designed and its stability was analyzed. Finally, with a vehicle’s parameters, simulation for control system was completed under various road conditions. The results showed that backstepping nonlinear method in active suspension con-trol could improve body acceleration and comfort performance in premise of reconciling the suspension deflection and dynamic wheel load performance.关键词
非线性阻尼/作动器动力学/主动悬架/backsteppingKey words
nonlinear damping/actuator dynamics/active suspension/backstepping分类
交通工程引用本文复制引用
邱香..非线性主动悬架backstepping控制研究[J].华东交通大学学报,2016,33(3):54-59,6.基金项目
江西省教育厅科学技术研究项目（GJJ151160）；江西省科技厅科技支撑计划项目 （）
