Power-on shifting in dual input clutchless power-shifting transmission for electric vehicles

Liang, J; Yang, H; Wu, J; Zhang, N; Walker, PD

Power-on shifting in dual input clutchless power-shifting transmission for electric vehicles

Liang, J

Yang, H

Wu, J

Zhang, N

Walker, PD

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Publication Type:: Journal Article
Citation:: Mechanism and Machine Theory, 2018, 121 pp. 487 - 501
Issue Date:: 2018-03-01

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Field	Value	Language
dc.contributor.author	Liang, J https://orcid.org/0000-0001-8549-0261	en_US
dc.contributor.author	Yang, H https://orcid.org/0000-0002-4987-5794	en_US
dc.contributor.author	Wu, J https://orcid.org/0000-0002-4925-4242	en_US
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044	en_US
dc.contributor.author	Walker, PD https://orcid.org/0000-0003-3988-3966	en_US
dc.date.issued	2018-03-01	en_US
dc.identifier.citation	Mechanism and Machine Theory, 2018, 121 pp. 487 - 501	en_US
dc.identifier.issn	0094-114X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/132502
dc.description.abstract	© 2017 Elsevier Ltd The purpose of this paper is to study the practical application of a two motor electric vehicle powertrain utilizing a combination of fixed and multiple speed gear ratios. To realize power-on shifting without torque hole and maximize overall efficiency, a high-speed motor is adopted as the primary motor connecting to the multiple speed clutchless automated manual transmission and a low-speed high torque electric motor is employed as the assisting motor connected to the final shaft with fixed gear ratio. Motor torque and speed are controlled using improved model predictive flux control method in conjunction with synchronizer mechanism actuation to best fill the torque hole to improve both drivability and driving comfort. To evaluate the proposed system, a complete mathematical model is built and compared with a conventional single motor transmission system. The detailed transient dynamic results in terms of final shaft torque, acceleration and vehicle jerk demonstrate the effectiveness of the proposed powertrain.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP150102751
dc.relation.ispartof	Mechanism and Machine Theory	en_US
dc.relation.isbasedon	10.1016/j.mechmachtheory.2017.11.004	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Design Practice & Management	en_US
dc.title	Power-on shifting in dual input clutchless power-shifting transmission for electric vehicles	en_US
dc.type	Journal Article
utslib.citation.volume	121	en_US
utslib.for	0902 Automotive Engineering	en_US
utslib.for	0913 Mechanical Engineering	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	0910 Manufacturing Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	/University of Technology Sydney/Students
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	121	en_US

Abstract:

© 2017 Elsevier Ltd The purpose of this paper is to study the practical application of a two motor electric vehicle powertrain utilizing a combination of fixed and multiple speed gear ratios. To realize power-on shifting without torque hole and maximize overall efficiency, a high-speed motor is adopted as the primary motor connecting to the multiple speed clutchless automated manual transmission and a low-speed high torque electric motor is employed as the assisting motor connected to the final shaft with fixed gear ratio. Motor torque and speed are controlled using improved model predictive flux control method in conjunction with synchronizer mechanism actuation to best fill the torque hole to improve both drivability and driving comfort. To evaluate the proposed system, a complete mathematical model is built and compared with a conventional single motor transmission system. The detailed transient dynamic results in terms of final shaft torque, acceleration and vehicle jerk demonstrate the effectiveness of the proposed powertrain.

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http://hdl.handle.net/10453/132502