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A new pneumatic suspension system with independent stiffness and ride height tuning capabilities

Yin, Zhihong and Khajepour, Amir and Cao, Dongpu and Ebrahimi, Babak and Guo, Konghui (2012) A new pneumatic suspension system with independent stiffness and ride height tuning capabilities. Vehicle system dynamics, 50 (12). pp. 1735-1746. ISSN 0042-3114

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Abstract

This paper introduces a new pneumatic spring for vehicle suspension systems, allowing independent tuning of stiffness and ride height according to different vehicle operating conditions and driver preferences. The proposed pneumatic spring comprises a double-acting pneumatic cylinder, two accumulators and a tuning subsystem. This paper presents a detailed description of the pneumatic spring and its working principle. The mathematical model is established based on principles of thermo and fluid dynamics. An experimental setup has been designed and fabricated for testing and evaluating the proposed pneumatic spring. The analytical and experimental results confirm the capability of the new pneumatic spring system for independent tuning of stiffness and ride height. The mathematical model is verified and the capabilities of the pneumatic spring are further proved. It is concluded that this new pneumatic spring provides a more flexible suspension design alternative for meeting various conflicting suspension requirements for ride comfort and performance.

Item Type: Article
Journal or Publication Title: Vehicle system dynamics
Uncontrolled Keywords: suspension systems ; validation ; stiffness ; ride height ; modelling
Subjects: UNSPECIFIED
Departments: Faculty of Science and Technology > Engineering
ID Code: 51722
Deposited By: ep_importer_pure
Deposited On: 02 Dec 2011 09:34
Refereed?: Yes
Published?: Published
Last Modified: 24 Jan 2014 05:23
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/51722

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