Fattah, Rachid, Kenne, Jean-Pierre, Benjelloun, Khalid et Chebak, Ahmed.
2026.
« Fixed-time constraint-aware sliding-mode control for ride comfort enhancement in active vehicle suspensions ».
IEEE Open Journal of Vehicular Technology, vol. 7.
1337–1350.
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Résumé
Active vehicle suspensions must improve ride comfort while respecting strict suspension-travel and tire-load constraints under uncertain road disturbances. Although sliding-mode control ensures robustness, conventional designs provide only asymptotic convergence and may generate chattering, limiting transient predictability and practical implementation. This paper proposes a continuous, non-singular fixed-time sliding-mode controller (FxT–SMC) with explicit constraint awareness for nonlinear quarter-car active suspensions. A state-dependent sliding map guarantees fixed-time convergence with an initial-condition-independent settling-time bound, while a smooth reciprocal barrier embedded in the sliding surface enforces forward invariance of the admissible travel set without discontinuous projection. Global fixed-time stability and bounded zero dynamics are rigorously established via Lyapunov analysis. Experimental validation over representative road profiles demonstrates predictable sub–2-second transients, strict satisfaction of travel and tire-load limits, and significant improvements in ISO 2631-1 comfort metrics compared with passive suspension, classical SMC, and super-twisting control. The results highlight the effectiveness of fixed-time, constraint-aware sliding-mode control for practical intelligent active suspension systems.
| Type de document: | Article publié dans une revue, révisé par les pairs |
|---|---|
| Chercheur(-euse): | Chercheur(-euse) Kenné, Jean-Pierre |
| Affiliation: | Génie mécanique |
| Date de dépôt: | 03 juin 2026 18:24 |
| Dernière modification: | 12 juin 2026 23:12 |
| URI: | https://espace2.etsmtl.ca/id/eprint/33763 |
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