Journal
IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY
Volume 18, Issue 1, Pages 238-245Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TCST.2009.2015653
Keywords
Active suspension system; convex polytope; H-infinity control; parameter uncertainty; sampled-data control
Funding
- National Natural Science Foundation of China [60825303, 60834003]
- 973 Project [2009CB320600]
- Heilongjiang Outstanding Youth Science Fund [JC200809]
- Foundation for the Author of National Excellent Doctoral Dissertation of China [2007E4]
- Engineering and Physical Sciences Research Council, U.K. [EP/F029195]
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This brief investigates the problem of robust sampled-data H-infinity control for active vehicle suspension systems. By using an input delay approach, the active vehicle suspension system with sampling measurements is transformed into a continuous-time system with a delay in the state. The transformed system contains non-differentiable time-varying state delay and polytopic parameter uncertainties. A Lyapunov functional approach is employed to establish the H-infinity performance, and the controller design is cast into a convex optimization problem with linear matrix inequality (LMI) constraints. A quarter-car model is considered in this brief and the effectiveness of the proposed approach is illustrated by a realistic design example.
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