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Modelling of a hydraulic power steering system

Xue, Yiqin and Watton, John 2005. Modelling of a hydraulic power steering system. International Journal of Vehicle Design 38 (2/3) , pp. 162-178. 10.1504/IJVD.2005.007290

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Abstract

Consideration is given to the modelling of a commercial hydraulic power steering system. The modelling philosophy with a comprehensive understanding of the control edge geometry is essential to an optimal system and the steady-state characteristics of a non-faceted valve and a two-facet valve are compared to understand the steering feeling. A test-rig is designed which incorporates the power steering assembly with a pneumatic loading system. The dynamics of the control valve and cylinder, pneumatic loading system, a non-linear friction model and the pump characteristics are then considered for dynamic performance and simulation results are compared with experimental results. The friction model contributes to the understanding of the pressure peak at the beginning of steering and the existence of a final steering angle error in practice.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Centre for Advanced Manufacturing Systems At Cardiff (CAMSAC)
Subjects: T Technology > TJ Mechanical engineering and machinery
Uncontrolled Keywords: dynamics; friction model; hydraulics; hydraulic power steering; steering modelling; control edge geometry; pneumatic loading; simulation; pressure peak; steering angle error; power transmission.
ISSN: 1741-5314
Last Modified: 15 Dec 2017 08:38
URI: http://orca-mwe.cf.ac.uk/id/eprint/2109

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