期刊
NONLINEAR DYNAMICS
卷 94, 期 1, 页码 627-638出版社
SPRINGER
DOI: 10.1007/s11071-018-4381-0
关键词
Active suspension systems; Event-triggered communication mechanism; Parametric uncertainties; Robust H-infinity control
资金
- National Natural Science Foundation of China [61603232]
- ShanXi Science and Technology Department of China [201701D221100]
- Australian Research Council Discovery Projects [DP160103567]
In this paper, we investigate the event-triggered H-infinity controller synthesis issue for vehicle suspension systems with linear fractional uncertainties. An active suspension model of quarter-car is represented by the state-space form. In order to obtain a resouce-aware state feedback controller for the system, we propose an event-triggerd communication mechanism to check which measurements should be delivered to the controller for updating the control input. Together with the proposed event threshold condition, a piecewise contionuous bounded function is introduced to model the intermittent updating intervals.Employing the Lyapunov funtional method, we present a stability criterion for the controlled event-triggerd active suspension system under parameter uncertainties and some physical constraints. Then, a design method for the event-triggered controller gain is obtained by utilizing some matrix transformations. An example is finally employed to illustrate the validness of the proposed method.
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