Article | Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden | Displacement Control Strategies of an In-Line Axial-Piston Unit Link�ping University Electronic Press Conference Proceedings
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Title:
Displacement Control Strategies of an In-Line Axial-Piston Unit
Author:
L. Viktor Larsson: Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, Linköping, Sweden Petter Krus: Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, Linköping, Sweden
DOI:
10.3384/ecp17144244
Download:
Full text (pdf)
Year:
2017
Conference:
Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden
Issue:
144
Article no.:
024
Pages:
244-253
No. of pages:
10
Publication type:
Abstract and Fulltext
Published:
2017-12-20
ISBN:
978-91-7685-369-6
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press, Linköpings universitet


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The need for efficient propulsion in heavy vehicles has led to an increased interest in hybrid solutions. Hydraulic hybrids rely on variable hydraulic pumps/motors to continuously convert between hydraulic and mechanical power. This process is carried out via the implementation of secondary control which, in turn, is dependent on a fast displacement controller response. This paper reports on a study of a prototype axial piston pump of the in-line type, in which the displacement is measured with a sensor and controlled using a software-based controller. A pole placement control approach is used, in which a simple model of the pump is used to parametrise the controller using desired resonance and damping of the closed loop controller as input. The controller’s performance is tested in simulations and hardware tests on the prototype unit. The results show that the pole placement approach combined with a lead-compensator controller architecture is flexible, easy to implement and is able to deliver a fast response with high damping. The results will in the future be used in further research on full-vehicle control of heavy hydraulic hybrids.



Keywords: Hydraulic hybrids, displacement control, pole placement

Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden

Author:
L. Viktor Larsson, Petter Krus
Title:
Displacement Control Strategies of an In-Line Axial-Piston Unit
DOI:
http://dx.doi.org/10.3384/ecp17144244
References:
No references available

Proceedings of 15:th Scandinavian International Conference on Fluid Power, June 7-9, 2017, Linköping, Sweden

Author:
L. Viktor Larsson, Petter Krus
Title:
Displacement Control Strategies of an In-Line Axial-Piston Unit
DOI:
http://dx.doi.org/10.3384/ecp17144244
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Last updated: 2018-9-11