Constrained H/sub /spl infin// control of active suspensions: an LMI approach
- 25 April 2005
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Control Systems Technology
- Vol. 13 (3), 412-421
- https://doi.org/10.1109/tcst.2004.841661
Abstract
This paper suggests a constrained H/sub /spl infin// control scheme for active suspensions with output and control constraints. The H/sub /spl infin// performance is used to measure ride comfort so that more general road disturbances can be considered. Time-domain constraints, representing requirements for: 1) good road holding which may have an impact on safety; 2) suspension stroke limitation; and 3) avoidance of actuator saturation, are captured using the concept of reachable sets and state-space ellipsoids. The proposed approach can potentially achieve the best possible ride comfort by allowing constrained variables free as long as they remain within given bounds. A state feedback solution to the constrained H/sub /spl infin// active suspension control problem is derived in the framework of linear matrix inequality (LMI) optimization and multiobjective control. Analysis and simulation results for a two-degree-of-freedom (2-DOF) quarter-car model show possible improvements on ride comfort, while respecting time-domain hard constraints.Keywords
This publication has 26 references indexed in Scilit:
- Road adaptive active suspension design using linear parameter-varying gain-schedulingIEEE Transactions on Control Systems Technology, 2002
- An Optimal Self-Tuning Controller for an Active SuspensionVehicle System Dynamics, 1998
- Multiobjective output-feedback control via LMI optimizationIEEE Transactions on Automatic Control, 1997
- Active Suspension Control to Improve Vehicle Ride and HandlingVehicle System Dynamics, 1997
- Nonlinear adaptive control of active suspensionsIEEE Transactions on Control Systems Technology, 1995
- Applications of Optimal Control to Advanced Automotive Suspension DesignJournal of Dynamic Systems, Measurement, and Control, 1993
- The Influence of Tire Damping in Quarter Car Active Suspension ModelsJournal of Dynamic Systems, Measurement, and Control, 1991
- Invariant Properties of Automotive SuspensionsProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 1990
- Adaptive Control of Vehicle SuspensionVehicle System Dynamics, 1987
- The Relative Performance Capabilities of Passive, Active and Semi-Active Car Suspension SystemsProceedings of the Institution of Mechanical Engineers, Part D: Transport Engineering, 1986