Abstract
This paper deals with the problem of output-feedback H∞ control for a class of active quarter-car suspension systems with control delay. The dynamic system of the suspension systems is first formed in terms of the control objectives, i.e., ride comfort, road holding, suspension deflection, and maximum actuator control force. Then, the objective is to the design of the dynamic output-feedback H∞ controller in order to ensure asymptotic stability of the closed-loop system with H∞ disturbance attenuation level and the output constraints. Furthermore, using Lyapnov theory and linear matrix inequality (LMI) approach, the existence of admissible controllers is formulated in terms of LMIs. With these satisfied conditions, a desired dynamic output-feedback controller can be readily constructed. Finally, a quarter-vehicle model is exploited to demonstrate the effectiveness of the proposed method. © 1982-2012 IEEE.
| Original language | English |
|---|---|
| Article number | 6419815 |
| Pages (from-to) | 436-446 |
| Journal | IEEE Transactions on Industrial Electronics |
| Volume | 61 |
| Issue number | 1 |
| Online published | 24 Jan 2013 |
| DOIs | |
| Publication status | Published - Jan 2014 |
| Externally published | Yes |
Funding
This work was supported in part by the National Natural Science Foundation of China under Grant (61203002), in part by the GRF project (517810) of the Hong Kong Research Grants Council, in part by internal research funds of Hong Kong Polytechnic University, and in part by Key Laboratory Opening Funding of Technology of Micro-Spacecraft (HIT.KLOF.2009099).
Research Keywords
- Active suspension system
- Actuator delay
- H∞ control
- output-feedback