CUED Publications database

An experimental semi-active anti-roll system

Stone, EJ and Cebon, D (2008) An experimental semi-active anti-roll system. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 222. pp. 2415-2433. ISSN 0954-4070

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Abstract

The use of anti-roll bars to provide additional roll stiffness and therefore to reduce the trade-off between ride and rollover performance has previously been studied. However, little work has been carried out to investigate the benefits of a switchable roll stiffness. Such a semi-active anti-roll system has the ability to have a low roll stiffness during straight-ahead driving for improved ride performance and high roll stiffness during cornering for improved roll performance. Modelling of such a system is conducted and the model is validated against a semi-active anti-roll system fitted to an experimental vehicle. Experimental and theoretical investigations are used to investigate the performance of such a system with several different strategies employed to switch to the high-stiffness state. The use of an air suspension on the vehicle to roll into corners is also investigated, as is the possibility of exploiting the road layout by allowing the vehicle to be in a low-roll-stiffness configuration during a corner, and then to switch to the high-roll-stiffness configuration midcorner, hence 'locking in' a roll angle. The best rollover performance improvement that was achieved was 12.5 per cent. © IMechE 2008.

Item Type: Article
Uncontrolled Keywords: Ride rollover Roll performance Roll stiffness Semi-active anti-roll system
Subjects: UNSPECIFIED
Divisions: Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:22
Last Modified: 08 Dec 2014 02:35
DOI: 10.1243/09544070JAUTO650