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Optimization of a Hydraulic Hybrid Vehicle for On-Road Driving Katharina Baer, Liselott Ericson and Petter Krus Division of Fluid and Mechatronic Systems.

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Presentation on theme: "Optimization of a Hydraulic Hybrid Vehicle for On-Road Driving Katharina Baer, Liselott Ericson and Petter Krus Division of Fluid and Mechatronic Systems."— Presentation transcript:

1 Optimization of a Hydraulic Hybrid Vehicle for On-Road Driving Katharina Baer, Liselott Ericson and Petter Krus Division of Fluid and Mechatronic Systems Linköping University

2 Hydraulic Hybrids  Energy recuperation  Peak-shaving/load leveling 2 Power demand Time Attractive for industry and research projects  Hydraulikdagarna 2015  Center for Compact and Efficient Fluid Power  passenger vehicles, mobile machinery

3 Hydraulic Hybrids: Some Options 3 Concept Variations Valves Gears Multiple component instances … + Control Concepts Concept Variations Valves Gears Multiple component instances … + Control Concepts Architectures Vehicle size Mobile Applications Series Parallel Power-Split

4 Hybrid Hydraulic Vehicle Modeling: Point of Departure 4

5 Application for Hydraulic Hybrid Vehicle 5 Architectures Vehicle size Mobile Applications Series Parallel Power-Split

6 Modeling 6

7 Vehicle Design Optimization  Sizing of driveline components  influences vehicle mass  Control parameters (pressure levels) Objective function integrated in Hopsan model Build-in optimization function 7

8 Results for fuel consumption But… 8

9 Results: combining the driving requirements 9

10 Iterative Process 10 model refinement, model alternatives, … Simulation model Simulation/Optimization Results

11 The Bigger Picture 11 Architectures Vehicle size Mobile Applications Series Parallel Power-Split Concept Variations Valves Gears Multiple component instances … + Control Concepts Concept Variations Valves Gears Multiple component instances … + Control Concepts Additional considerations ….

12

13 Results for fuel consumption But… 13


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