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Electrified hydraulic power steering system in hybrid electric heavy trucks

Morton, C.; Spargo, C.M.; Pickert, V.

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Authors

C. Morton

C.M. Spargo

V. Pickert



Contributors

Abstract

Over the last 20 years, conventional automotive engine ancillaries have migrated from being mechanically powered to electrically powered in order to meet market demand. To adopt this trend in heavy trucks requires a higher power electrical system in order to cope with the higher loads placed upon it. Until the advent of the hybrid electric heavy truck (HET) this power infrastructure has not been available. HET's require a higher voltage system in order to reduce losses and provide adequate power and voltage levels for the traction motor. This study investigates for the first time the benefit of electrifying a hydraulic power assisted steering system in an HET. The developed electrical hydraulic power steering (EHPS), using a high-voltage traction battery, is found to drastically reduce the consumed energy over a drive cycle by optimal operation of the pump over the driving cycle. Empirical data from a prototype HET with EHPS confirms the simulation results from Dymola.

Citation

Morton, C., Spargo, C., & Pickert, V. (2014). Electrified hydraulic power steering system in hybrid electric heavy trucks. IET Electrical Systems in Transportation, 4(3), 70-77. https://doi.org/10.1049/iet-est.2013.0050

Journal Article Type Article
Acceptance Date Mar 3, 2014
Online Publication Date Apr 17, 2014
Publication Date Sep 1, 2014
Deposit Date Jan 21, 2016
Publicly Available Date Mar 29, 2024
Journal IET Electrical Systems in Transportation
Print ISSN 2042-9738
Electronic ISSN 2042-9746
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 4
Issue 3
Pages 70-77
DOI https://doi.org/10.1049/iet-est.2013.0050

Files

Accepted Journal Article (1.6 Mb)
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Copyright Statement
This paper is a postprint of a paper submitted to and accepted for publication in IET Electrical Systems in Transportation and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library.





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