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Title: Dynamics and efficiency of planetary gear sets for hybrid powertrains
Authors: Mohammadpour, Mahdi
Theodossiades, Stephanos
Rahnejat, Homer
Keywords: Planetary gear set
Hybrid power trains
Dynamics
Lubrication
Transmission efficiency
Issue Date: 2016
Publisher: SAGE © IMechE
Citation: MOHAMMADPOUR, M., THEODOSSIADES, S. and RAHNEJAT, H., 2016. Dynamics and efficiency of planetary gear sets for hybrid powertrains. Proceedings of the IMechE, Part C: Journal of Mechanical Engineering Science, 230(7/8), pp.1359-1368.
Abstract: The paper presents a tribo-dynamic model for planetary gear sets of hybrid-electric-vehicle configurations. The model comprises a six degree-of-freedom torsional multi-body dynamic system, as well as a tribological contact model in order to evaluate the lubricant film thickness, friction and efficiency of the meshing gear teeth contacts. The tribological model takes into account the non-Newtonian, thermal-mixed elastohydrodynamic regime of lubrication. Analysis is performed for a hybrid electric C-segment vehicle. The simulated conditions correspond to cases of power supplied by either the engine or the electric motor. The results illustrate that in the electric motor drive mode, improved noise, vibration and harshness refinement would be expected, whereas better transmission efficiency is achieved in the internal combustion engine drive mode.
Description: This article was published in the journal, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science [SAGE © IMechE] and the definitive version is available from: http://dx.doi.org/10.1177/0954406215590644
Version: Accepted for publication
DOI: 10.1177/0954406215590644
URI: https://dspace.lboro.ac.uk/2134/18011
Publisher Link: http://dx.doi.org/10.1177/0954406215590644
ISSN: 0954-4062
Appears in Collections:Published Articles (Mechanical, Electrical and Manufacturing Engineering)

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