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The effectiveness of rear axle steering on the yaw stability and responsiveness of a heavy truck

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Abstract:

Rear axle steering (RAS) at low speed is available in heavy trucks to improve their manoeuverability and reduce tyre wear; by extending the functionality of the existing RAS to high speed turning and split-mu braking, considerable safety benefits and enhancement in driver comfort can be gained. In this study, a RAS System was developed and simulated in Matlab-Simulink which showed encouraging results. Furthermore, the developed system was implemented on a Volvo Truck and tested in a series of split-mu braking and ISO double lane change manoeuvers. The obtained results conform to the expectations.

Keywords: heavy truck; rear axle steering; split-mu braking; yaw stability

Document Type: Research Article

DOI: https://doi.org/10.1080/00423110801958568

Affiliations: Department of Applied Mechanics, Chalmers University of Technology, Gothenburg, Sweden

Publication date: 2008-09-01

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