Road Adaptive Semi-active Suspension in a Pick-up Truck using an LPV Controller - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2013

Road Adaptive Semi-active Suspension in a Pick-up Truck using an LPV Controller

Résumé

A novel road adaptive LPV controller for the semi-active suspension system of a pick-up truck is proposed. The analysis is carried on the front-left Quarter of Vehicle (QoV) model generated via CarsimTM vehicle simulator. By using an on-line road roughness estimation, considered as scheduling parameter, the proposed LPV/H∞ controller is designed to improve comfort and road holding. The road profile detector is based on the frequency and amplitude estimation of the road irregularities by using a Fourier analysis. AnH∞ robust observer is designed to estimate the variables related to the QoV vertical dynamics, which are used to compute the road frequency and roughness. Different ISO road classes are used to evaluate on-line the proposed road identification algorithm. A Receiver Operating Characteristic (ROC) curve is used to monitor the performance of the roughness estimation; the results show that any road can be identified (at least 70% of success with a false alarm rate lower than 5%). The average error of road identification is 16.2%. Finally, simulation results show that the proposed controller with road adaptation is capable to manage the trade-off between comfort and road holding. The road adaptive controller increases the comfort (35.8% )when the vehicle is driven over a road of bad quality, by considering an uncontrolled damper (passive suspension) as benchmark. While, when the vehicle is driven over a smooth runway at high velocity, the road holding index is increased 50%.
Fichier non déposé

Dates et versions

hal-00811039 , version 1 (10-04-2013)

Identifiants

  • HAL Id : hal-00811039 , version 1

Citer

Juan C. Tudon-Martinez, Soheib Fergani, Sébastien Varrier, Olivier Sename, Luc Dugard, et al.. Road Adaptive Semi-active Suspension in a Pick-up Truck using an LPV Controller. AAC 2013 - 7th IFAC international symposium on advances in automotive control, Sep 2013, Tokyo, Japan. pp.n/c. ⟨hal-00811039⟩
367 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More