Robust design strategy applied to a vehicle suspension system with high camber angle tyres

Estelle Koensgen (1) , Sébastien Berger (2) , Christophe Bouet (1) , Louis Jézéquel (3) , Evelyne Aubry (2)

1 Vehicle Dynamics Research Group
2 MIPS - Modélisation, Intelligence, Processus et Système
3 LTDS - Laboratoire de Tribologie et Dynamique des Systèmes

This paper presents the robust design of a suspension system suitable for tyres whose camber angle can cover a large interval. The originality of this study is to take account of the tyre camber angle within the range (+/- 20 °) in the robust design of a vehicle suspension system. The methodology is based on the hierarchical organization of the design process, on simplified models, on sensitivity analysis and on robust optimization. The paper describes the robust design methods, the modelling of the tyre, the design process and the results. Two models of car tyres valid for high camber angles have been defined. The design strategy based on ''First Design'' and ''Rational Design'' methods, as well as on the ''Electre'' decision support method, shows its strong potential for finding efficient and robust solutions. The feasibility of integrating an axle into the steering system at high camber angles is demonstrated.

Mots clés: Quality; Robust design; Camber angle; Tyre; Optimization; Vehicle dynamics; Vehicle suspension system

Domaines: Mécanique [physics.med-ph]

Estelle Koensgen, Sébastien Berger, Christophe Bouet, Louis Jézéquel, Evelyne Aubry. Robust design strategy applied to a vehicle suspension system with high camber angle tyres. International Journal of Vehicle Design, 2013, 62 (1), pp.42 - 71. ⟨10.1504/IJVD.2013.051588⟩. ⟨hal-00982583⟩