Power on gear shift control strategy design for a parallel hydraulic hybrid vehicle

Zhou, S; Walker, P; Wu, J; Zhang, N

Power on gear shift control strategy design for a parallel hydraulic hybrid vehicle

Zhou, S

Walker, P

Wu, J Zhang, N

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: Mechanical Systems and Signal Processing, 2021, 159, pp. 1-18
Issue Date:: 2021-10-01

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Field	Value	Language
dc.contributor.author	Zhou, S https://orcid.org/0000-0001-5070-141X
dc.contributor.author	Walker, P https://orcid.org/0000-0003-3988-3966
dc.contributor.author	Wu, J
dc.contributor.author	Zhang, N https://orcid.org/0000-0001-6408-0044
dc.date.accessioned	2022-05-18T01:43:31Z
dc.date.available	2022-05-18T01:43:31Z
dc.date.issued	2021-10-01
dc.identifier.citation	Mechanical Systems and Signal Processing, 2021, 159, pp. 1-18
dc.identifier.issn	0888-3270
dc.identifier.issn	1096-1216
dc.identifier.uri	http://hdl.handle.net/10453/157481
dc.description.abstract	The power on gear shift control of a parallel hydraulic hybrid vehicle (PHHV) is researched in this paper. A multibody dynamic model is built to capture the main vibration characteristics of PHHV powertrain, based on which the power on gear shift control strategy is designed and verified. To avoid the vehicle driving torque interruption during gear shift, power on gear shift control strategy is designed. In the control strategy, hydraulic pump/motor (HPM) compensates the engine torque when the engine clutch is disengaged for gear shift. The engine clutch engagement process is carefully controlled by LQR control strategy to mitigate the vehicle powertrain vibration and improve the vehicle driving comfort. Extended Kalman filter (EKF) is adopted to estimate the PHHV parameters required by LQR control. The available HPM torque depends on its working pressure which varies a lot with different accumulator state of charge. So the HPM torque compensation capability is investigated by analysing the traction force requirement during gear shift. To obtain the gear shift traction force demand, a gear shift schedule considering both vehicle fuel economy and dynamic performance is designed. The simulation results show that the HPM could satisfy most of the torque compensation requirements during gear shifts with the designed gear shift schedule in typical driving cycles.
dc.language	English
dc.publisher	Elsevier
dc.relation	http://purl.org/au-research/grants/arc/DE170100134
dc.relation.ispartof	Mechanical Systems and Signal Processing
dc.relation.isbasedon	10.1016/j.ymssp.2021.107798
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0913 Mechanical Engineering, 0915 Interdisciplinary Engineering
dc.subject.classification	Acoustics
dc.title	Power on gear shift control strategy design for a parallel hydraulic hybrid vehicle
dc.type	Journal Article
utslib.citation.volume	159
utslib.for	0905 Civil Engineering
utslib.for	0913 Mechanical Engineering
utslib.for	0915 Interdisciplinary Engineering
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
utslib.copyright.status	closed_access	*
pubs.consider-herdc	false
dc.date.updated	2022-05-18T01:43:29Z
pubs.publication-status	Published
pubs.volume	159

Abstract:

The power on gear shift control of a parallel hydraulic hybrid vehicle (PHHV) is researched in this paper. A multibody dynamic model is built to capture the main vibration characteristics of PHHV powertrain, based on which the power on gear shift control strategy is designed and verified. To avoid the vehicle driving torque interruption during gear shift, power on gear shift control strategy is designed. In the control strategy, hydraulic pump/motor (HPM) compensates the engine torque when the engine clutch is disengaged for gear shift. The engine clutch engagement process is carefully controlled by LQR control strategy to mitigate the vehicle powertrain vibration and improve the vehicle driving comfort. Extended Kalman filter (EKF) is adopted to estimate the PHHV parameters required by LQR control. The available HPM torque depends on its working pressure which varies a lot with different accumulator state of charge. So the HPM torque compensation capability is investigated by analysing the traction force requirement during gear shift. To obtain the gear shift traction force demand, a gear shift schedule considering both vehicle fuel economy and dynamic performance is designed. The simulation results show that the HPM could satisfy most of the torque compensation requirements during gear shifts with the designed gear shift schedule in typical driving cycles.

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http://hdl.handle.net/10453/157481