C. Morton
Electrified hydraulic power steering system in hybrid electric heavy trucks
Morton, C.; Spargo, C. M.; Pickert, V.
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. M., & 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 | Apr 26, 2016 |
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 |
Public URL | https://durham-repository.worktribe.com/output/1422082 |
Files
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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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