Actuator delayed active vehicle suspension control: A T-S fuzzy approach

This paper focuses on fuzzy H_∞ controller design for uncertain active suspension systems with actuator delay based on Takagi-Sugeno (T-S) model approach. This dynamic system is presented by taking into account the sprung and unsprung mass variations, the actuator delay, and the suspension performance. The fuzzy H_∞ controller is designed such that the resulting T-S fuzzy system is asymptotically stable and guarantees H_∞ performance, and simultaneous satisfying the constraint performance. The existence condition of fuzzy H_∞ control is obtained in terms of linear matrix inequalities (LMIs) and can be solved by using the standard software. A quarter-car suspension model is provided to validate the effectiveness of the proposed design procedures.