Framework for Simulation-Based Simultaneous System Optimization for a Series Hydraulic Hybrid Vehicle

Authors

  • Katharina Baer Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden
  • Liselott Ericson Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden
  • Petter Krus Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden

DOI:

https://doi.org/10.13052/ijfp1439-9776.2012

Keywords:

Simulation-based optimization, hydraulic hybrid vehicle, series hybrid, simultaneous design and control optimization,, Hopsan

Abstract

Hybridization of hydraulic drivetrains offers the potential of efficiency improvement for on- and off-road applications. To realize the advantages, a carefully designed system and corresponding control strategy are required, which are commonly obtained through a sequential design process.Addressing component selection and control parameterization simultaneously through simulation-based optimization allows for exploration of a large design space as well as design relations and trade-offs, and their evaluation in dynamic conditions which exist in real driving scenarios. In this paper, the optimization framework for a hydraulic hybrid vehicle is introduced, including the simulation model for a series hybrid architecture and component scaling considerations impacting the system’s performance.Anumber of optimization experiments for an on-road light-duty vehicle, focused on standard-drivecycle- performance, illustrate the impact of the problem formulation on the final design and thus the complexity of the design problem. The designs found demonstrate both the potential of energy storage in series hybrids, via an energy balance diagram, as well as some challenges. The framework presented here provides a base for systematic evaluation of design alternatives and problem formulation aspects.

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Author Biographies

Katharina Baer, Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden

Katharina Baer received her Ph.D. at the division of Fluid and Mechatronic Systems at Linköping University, Sweden, in 2018. She has since joined the division of Machine Design at Linköping University. Her interests lie in system modelling, simulation and optimization, in particular concerning hydraulic hybrid systems.

Liselott Ericson, Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden

Liselott Ericson received a D.Sc. degree at Linköping University, Sweden, in 2012. The topic of her thesis is related to noise reduction in hydraulic pumps and motors. She is a research fellow at Fluid and Mechatronic Systems at LiU. The areas of interest include control design, modelling, simulation and noise in fluid power systems.

Petter Krus, Division of Fluid and Mechatronic Systems, Department of Management and Engineering, Linköping University, SE-581 83 Linköping, Sweden

Petter Krus is a professor and head of division of Fluid and Mechatronic Systems at Linköping University in Sweden. He is also holder of the Swedish Endowed Chair in Aeronautics at “Instituto Technólogico Aeronáutica”, ITA in Brazil. His field of research is in fluid power systems, aeronautics, systems engineering, modelling and simulation and design optimization.

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Published

2019-04-18

How to Cite

Baer, K., Ericson, L., & Krus, P. (2019). Framework for Simulation-Based Simultaneous System Optimization for a Series Hydraulic Hybrid Vehicle. International Journal of Fluid Power, 20(1), 27–52. https://doi.org/10.13052/ijfp1439-9776.2012

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