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Design Study and Parameter Optimization for a Light-Weight Series Hydraulic Hybrid Vehicle
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, The Institute of Technology.
Linköping University, Department of Management and Engineering, Fluid and Mechatronic Systems. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-2315-0680
2015 (English)Conference paper (Refereed)
Abstract [en]

Hydraulic hybrid drives are one potential way of improving the fuel efficiency of vehicles, including the possi-bility of recuperating braking energy in a hydraulic accumulator. The high power density of fluid power is mainly advantageous for heavy vehicles, or duty cycles characterized with frequent braking and acceleration. For smaller vehicles, hydraulic hybrid drives are thus most interesting under urban and suburban driving conditions. Amongst the existing architectures, the series hydraulic hybrid offers the advantage of operating the internal combustion engine independently of the vehicle speed, at the cost of a less efficient transmission path than a purely mechanical one. Previously, a series hydraulics hybrid light-duty vehicle was modelled in the transmission-line modelling (TLM)-based simulation software Hopsan from the division of Fluid and Mechatronic Systems (Flumes) at Linköping University. This paper studies through simulation-based optimi-zation how the fuel-optimal vehicle design is affected by various mixes of urban and suburban driving requirements. Both the system’s hardware and the parameters of a basic control strategy are considered. The results show quite similar designs for most performance requirements combinations, and can be the base for further studies addressing additional requirements, conditions and objectives.

Place, publisher, year, edition, pages
2015.
Series
, Scandinavian International Conference on Fluid Power (SICFP), ISSN 2342-2726
National Category
Vehicle Engineering
Identifiers
URN: urn:nbn:se:liu:diva-122004OAI: oai:DiVA.org:liu-122004DiVA: diva2:860876
Conference
14th Scandinavian International Conference on Fluid Power (SICFP'15), Tampere, Finland
Available from: 2015-10-14 Created: 2015-10-14 Last updated: 2016-04-05

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Baer, KatharinaEricson, LiselottKrus, Petter
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