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An Analysis of a Multi-Pump System for Actuator Operation in Electric Mobile Machinery
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-9533-8578
Volvo Construction Equipment AB, Eskilstuna, Sweden.
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-3877-8147
2023 (English)In: ASME/BATH 2023 Symposium on Fluid Power and Motion Control - FPMC2023, The American Society of Mechanical Engineers , 2023Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents an analysis of a multi-pump solution for a hydraulic cylinder for application in mobile machinery with electric prime movers. The flexibility provided by using electric motors instead of an internal combustion engine allows for the design of alternative hydraulic architectures that remove the need for a centralized pumping system and support more direct control of individual components. This allows them to operate at a higher efficiency region to improve overall vehicle efficiency, leading to smaller batteries and shorter or less frequent recharge periods. To evaluate the capabilities of this proposal, this paper focuses on a backward calculation analysis of a single actuator operating with multiple pump/motors connected to each chamber. A series of hydraulic machines with fixed displacement and identical sizes are connected to the actuator chambers through on/off directional valves. The system controls the flow by using the required pumps and selecting their optimal speeds to minimize energy consumption or maximize energy recovery. The results show how the number of pumps affects the system’s performance and provide insights regarding the selection of operating machines according to the actuator speed and force.

Place, publisher, year, edition, pages
The American Society of Mechanical Engineers , 2023.
Series
Symposium on Fluid Power and Motion Control
Keywords [en]
multi-pump hydraulic actuator, multi-pump system, hydraulic actuation, electric mobile machinery, electrification
National Category
Other Mechanical Engineering
Identifiers
URN: urn:nbn:se:liu:diva-199230DOI: 10.1115/FPMC2023-111452ISI: 001219322300023ISBN: 9780791887431 (electronic)OAI: oai:DiVA.org:liu-199230DiVA, id: diva2:1813718
Conference
ASME/BATH 2023 Symposium on Fluid Power and Motion Control, Sarasota, FL, USA, October 16-18, 2023.
Projects
Energieffektiva kompakta elektrohydrauliska komponent- och systemlösningar för arbetsmaskiner, E-hydraulik
Funder
Swedish Energy Agency, 305207
Note

Funding Agencies|Swedish Energy Agency (Energimyndigheten) [50181-1]

Available from: 2023-11-21 Created: 2023-11-21 Last updated: 2024-06-12Bibliographically approved

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Tozzi de Cantuaria Gama, ArturHeybroek, KimEricson, Liselott

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