CUED Publications database

Design trade-offs for energy regeneration and control in vehicle suspensions

Pires, L and Smith, MC and Houghton, NE and McMahon, RA (2013) Design trade-offs for energy regeneration and control in vehicle suspensions. International Journal of Control, 86. pp. 2022-2034. ISSN 0020-7179

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This paper investigates the fundamental trade-offs involved in designing energy-regenerative suspensions, in particular, focusing on efficiency of power extraction and its effect on vehicle dynamics and control. It is shown that typical regenerative devices making use of linear-to-rotational elements can be modelled as a parallel arrangement of an inerter and a dissipative admittance. Taking account of typical adjustable parameters of the generator, it is shown, for a given suspension damping coefficient, that the power efficiency ratio scales with inertance. For a typical passenger vehicle, it is shown that there is a feasible compromise, namely that good efficiency is achievable with an inertance value that is not detrimental to vehicle performance. A prototype is designed and tested with a resistive termination and experimental results show good agreement between ideal and experimental admittances. The possibility to use dynamic (rather than purely resistive) loads to improve vehicle control without limiting the energy recovery is discussed. © 2013 Copyright Taylor and Francis Group, LLC.

Item Type: Article
Divisions: Div F > Control
Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:13
Last Modified: 18 Feb 2021 14:21
DOI: 10.1080/00207179.2013.830197