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Vehicle System Dynamics
International Journal of Vehicle Mechanics and Mobility
Volume 46, 2008 - Issue 9
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Original Articles

Real-time multiple-model estimation of centre of gravity position in automotive vehicles

, , &
Pages 763-788 | Received 19 Jun 2006, Published online: 15 Jul 2008
 

Abstract

In this paper, we present a methodology based on multiple models and switching for real-time estimation of centre of gravity (CG) position in automotive vehicles. The method utilises well-known simple linear vehicle models for lateral and roll dynamics and assumes the availability of standard stock automotive sensors. We illustrate the technique with numerical simulations as well as with measured sensor data from an sport utility vehicle. We also compare our estimation results with traditional linear least-squares estimators to show the efficacy of our technique. Finally, we give a simple application example for implementing the idea in automotive vehicles as a switch for rollover controller activation.

Acknowledgements

This work was supported by Science Foundation Ireland Grant 04/IN3/I478. Science Foundation Ireland is not responsible for any use of data appearing in this publication. The authors would like to thank Mr Avshalom Suissa, and all the anonymous reviewers for their helpful comments and suggestions.

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