CUED Publications database

Implementation of semi-active damping on a tri-axle heavy-vehicle suspension

Roebuck, RL and Cebon, D (2008) Implementation of semi-active damping on a tri-axle heavy-vehicle suspension. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 222. pp. 2353-2372. ISSN 0954-4070

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Abstract

A semi-active truck damper was developed in conjunction with a commercial shock absorber manufacturer. A linearized damper model was developed for control system design purposes. Open- and closed-loop damper force tracking control was implemented, with tests showing that an open-loop approach gave the best compromise between response speed and accuracy. A hardware-in-the-loop test facility was used to investigate performance of the damper when combined with a simulated quarter-car model. The input to the vehicle model was a set of randomly generated road profiles, each profile traversed at an appropriate speed. Modified skyhook damping tests showed a simultaneous improvement over the optimum passive case of 13 per cent in vertical body acceleration and 8 per cent in dynamic tyre forces. Full-scale vehicle tests of the damper on a heavy tri-axle trailer were carried out. Implementation of modified skyhook damping yielded a simultaneous improvement over the optimum passive case of 8 per cent in vertical body acceleration and 8 per cent in dynamic tyre forces. © IMechE 2008.

Item Type: Article
Uncontrolled Keywords: Body acceleration Control Damper Hardware-in-the-loop Real time Semi-active Skyhook Tri-axle Tyre force
Subjects: UNSPECIFIED
Divisions: Div C > Applied Mechanics
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:40
Last Modified: 27 Nov 2014 19:20
DOI: 10.1243/09544070JAUTO819