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    Analysis of the properties of a steering shaft used as a back-up for a steer-by-wire system during system failure

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    Publication date
    2009
    Author
    Hussain, Khalid
    Baharom, Masri B.
    Day, Andrew J.
    Keyword
    Steer-by-wire system
    ; Failure
    ; Stiffness
    ; Damping
    ; Simulation
    ; Modelling
    ; Automotive
    ; Analysis; REF 2014
    Rights
    © 2009 IMechE. Reproduced in accordance with the publisher's self-archiving policy.
    Peer-Reviewed
    Yes
    
    Metadata
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    Abstract
    An analysis is presented to determine the best selection criteria for the properties of a steering shaft to be used as a back-up apparatus for a steer-by-wire (SBW) system during system failure. The properties of interest are the steering-shaft stiffness and its damping coefficient. A mathematical model representing the failed state of an SBW system is derived, and a set of experiments to validate the model is presented. Once the model had been validated, further predictions of the car¿s handling behaviour for a range of steering-shaft properties and different road speeds were completed by simulations in MATLAB/Simulink. A minimum stiffness which did not cause the car to become unstable owing to overshoot was determined, and the minimum acceptable damping coefficient value was derived. It is concluded that the suggested stiffness and damping coefficient values increased the steering ratio, and the results of further investigations are presented, which confirm that the vehicle is safe to be driven in the event of SBW system failure if the recommended shaft properties are used.
    URI
    http://hdl.handle.net/10454/2373
    Version
    Published version
    Citation
    Hussain K, Baharom M and Day AJ (2009) Analysis of the properties of a steering shaft used as a back-up for a steer-by-wire system during system failure. Proceedings of the Institution of Mechanical Engineers. Part D: Journal of Automobile Engineering. 223(2): 177-189.
    Link to publisher’s version
    http://journals.pepublishing.com/home/main.mpx
    Type
    Article
    Collections
    Engineering and Informatics Publications

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