Oliver Sawodny

Prof. Dr.-Ing. habil. Dr. h.c.

Stellvertretender Sprecher
Institut für Systemdynamik, Fakultät Konstruktions-, Produktions- und Fahrzeugtechnik
Professor (W3) und Institutsleiter

Kontakt

+49 7116856630266303
E-Mail

Waldburgstraße 17/19
70563 Stuttgart
Deutschland

Fachgebiet

Beteiligt an Teilprojekten, inklusive Position:

A05 – Bauphysikalische Systemkonzepte und Planungsmethoden für Konstruktion und Betrieb von adaptiven Bauwerken, Teilprojektleiter

A06 – Bautechnische Integration von aktiven Elementen in die Gebäudestruktur, Teilprojektleiter

B04 – Steuerungs- und Regelungskonzepte für adaptive Bauwerke, Teilprojektleiter

Ö - Öffentlichkeitsarbeit, Teilprojektleiter

Z01 – Funktionsmuster und Demonstrator, Teilprojektleiter

Z02 – Zentrale Aufgaben des Sonderforschungsbereichs, Teilprojektleiter

Publikationen

2015
1. M. Doll, R. Neumann, and O. Sawodny, “Dimensioning of pneumatic cylinders for motion tasks,” International Journal of Fluid Power, vol. 16, Art. no. 1, 2015, doi: 10.1080/14399776.2015.1012437.
  - BibTeX
  BibTeX
  @article{doll2015dimensioning, abstract = {This paper proposes a novel method for dimensioning pneumatic cylinders for motion tasks. Considered are standard pneumatic cylinders with common directional control valves and exhaust flow throttles. The focus thereby is on the dimensioning of the cylinders for point-to-point motions regarding energy efficiency. The proposed strategy is based on the eigenfrequency and considers similarity transformations. The dimensioning of the cylinder diameter and the valve conductance bases upon a few algebraic equations leading to optimally sized pneumatic cylinders. Furthermore, the equations are used for classification purposes of the pneumatic cylinders regarding energy efficiency.}, author = {Doll, Matthias and Neumann, Rüdiger and Sawodny, Oliver}, doi = {10.1080/14399776.2015.1012437}, file = {Doll2015a_IJFP_Dimensioning_Pneumatic_Cylinders.pdf:..\\pdfs\\Doll2015a_IJFP_Dimensioning_Pneumatic_Cylinders.pdf:PDF}, isys_authors = {mdoll}, journal = {International Journal of Fluid Power}, number = 1, pages = {11-24}, title = {Dimensioning of pneumatic cylinders for motion tasks}, volume = 16, year = 2015 }
2. B. Henke, O. Sawodny, and R. Neumann, “Distributed parameter modeling of flexible ball screw drives using Ritz series discretization,” IEEE-ASME Transactions on Mechatronics, vol. 20, Art. no. 3, 2015, doi: 10.1109/TMECH.2014.2333775.
  - BibTeX
  BibTeX
  @article{henke2015distributed, abstract = {Ball screw drives are used in automation applications and machine tools to translate rotational motion of an electric motor into translational motion of a slide. Their frequency responses show characteristic torsional and translational resonances. The resonance frequencies vary with the slide position, which is due to the distributed stiffness and inertia of the flexible ball screw. The proposed model treats the ball screw as a flexible element, using Ritz series expansions to obtain a finite approximation of the continuous deformations. The use of problem-specific basis functions allows for a low-order approximation, making the model especially well suited for control design. The model shows excellent validation results and reproduces the variation of the resonance frequencies with high accuracy.}, author = {Henke, Benjamin and Sawodny, Oliver and Neumann, Rüdiger}, doi = {10.1109/TMECH.2014.2333775}, file = {Henke2015b_TMECH_Modeling_Of_Ball_Screw_Drives.pdf:..\\pdfs\\Henke2015b_TMECH_Modeling_Of_Ball_Screw_Drives.pdf:PDF}, isys_authors = {bhenke}, isys_group = {Mechatronik}, journal = {IEEE-ASME Transactions on Mechatronics}, number = 3, pages = {1226-1235}, title = {Distributed parameter modeling of flexible ball screw drives using Ritz series discretization}, volume = 20, year = 2015 }
2014
1. F. A. Bender, T. Bosse, and O. Sawodny, “An investigation on the fuel savings potential of hybrid hydraulic refuse collection vehicles,” Waste Mangement, vol. 34, Art. no. 9, 2014, doi: 10.1016/j.wasman.2014.05.022.
  - BibTeX
  BibTeX
  @article{bender2014investigation, abstract = {Refuse trucks play an important role in the waste collection process. Due to their typical driving cycle, these vehicles are characterized by large fuel consumption, which strongly affects the overall waste disposal costs. Hybrid hydraulic refuse vehicles offer an interesting alternative to conventional diesel trucks, because they are able to recuperate, store and reuse braking energy. However, the expected fuel savings can vary strongly depending on the driving cycle and the operational mode. Therefore, in order to assess the possible fuel savings, a typical driving cycle was measured in a conventional vehicle run by the waste authority of the City of Stuttgart, and a dynamical model of the considered vehicle was built up. Based on the measured driving cycle and the vehicle model including the hybrid powertrain components, simulations for both the conventional and the hybrid vehicle were performed. Fuel consumption results that indicate savings of about 20% are presented and analyzed in order to evaluate the benefit of hybrid hydraulic vehicles used for refuse collection.}, author = {Bender, Frank A. and Bosse, Thomas and Sawodny, Oliver}, doi = {10.1016/j.wasman.2014.05.022}, file = {Bender2014a_WM_An_Investigation_on_the_Fuel_Savings_Potential.pdf:..\\pdfs\\Bender2014a_WM_An_Investigation_on_the_Fuel_Savings_Potential.pdf:PDF}, isys_authors = {fbender}, isys_group = {Automotive}, journal = {Waste Mangement}, number = 9, pages = {1577-1583}, title = {An investigation on the fuel savings potential of hybrid hydraulic refuse collection vehicles}, volume = 34, year = 2014 }
2. S. V. Krichel and O. Sawodny, “Non-linear friction modelling and simulation of long pneumatic transmission lines,” Mathematical and Computer Modelling of Dynamical Systems, vol. 20, Art. no. 1, 2014, doi: 10.1080/13873954.2013.811268.
  - BibTeX
  BibTeX
  @article{krichel2014nonlinear, abstract = {Dynamic modelling and numerical implementation strategies for fluid transmission lines have been studied thoroughly, mainly for the application in hydraulic pipeline networks. Recent interest in energy efficiency has seen a resurgence of this field for compressed air networks, with impact on manufacturing processes, simulation of pneumatic drive components, and other theoretical analysis applications. The effects of long tubes connecting system components are often neglected to increase computational speed and reduce model size. This document highlights existing modelling approaches from practice as well as from fluid dynamic theory. Existing approaches for hydraulic transmission lines are adapted to their use for pneumatic tubes. A low-order model is derived capable to predict the transient behaviour of pressure and mass flow rate distribution within the tube. The model accounts for non-linear turbulent flow conditions, and is designed to be compatible with signal-flow simulation programmes, increasing its usability in large-scale industrial settings. It is numerically well conditioned, and all parameters are determined by physical or empirical relationships. Both its transient and quasi-stationary behaviour are validated against experimental results.}, author = {Krichel, Susanne V. and Sawodny, Oliver}, doi = {10.1080/13873954.2013.811268}, file = {Krichel2014a_MCMDS_Modeling_Pneumatic_Transmission_Lines.pdf:..\\pdfs\\Krichel2014a_MCMDS_Modeling_Pneumatic_Transmission_Lines.pdf:PDF}, journal = {Mathematical and Computer Modelling of Dynamical Systems}, number = 1, pages = {23-44}, title = {Non-linear friction modelling and simulation of long pneumatic transmission lines}, volume = 20, year = 2014 }
2013
1. F. A. Bender, M. Kaszynski, and O. Sawodny, “Drive cycle prediction and energy management optimization for hybrid hydraulic vehicles,” IEEE Transactions on Vehicular Technology, vol. 62, Art. no. 8, 2013, doi: 10.1109/TVT.2013.2259645.
  - BibTeX
  BibTeX
  @article{bender2013drive, abstract = {Increasing costs of fossil fuels and the requirement of reduced CO2 emissions for road vehicles make the development of alternative propulsion systems a top priority in automotive research. Hybrid hydraulic vehicles (HHVs) can contribute to improving the fuel efficiency of heavy vehicles such as garbage trucks and city buses. The combination of a conventional diesel engine with an additional hydraulic powertrain allows for regenerative braking. Further improvements with regard to fuel efficiency become possible through additional optimization of the energy management strategy, which decides when to apply which propulsion system. Rule-based strategies are the state of the art, but they cannot utilize the full potential because their performance is only superior on the cycles for which they have been developed. Approaches including numerical optimization are independent from the actual drive cycle and result in much higher savings. However, these techniques usually require a prediction of the driving profile. In this paper, a complete solution for predictive energy management in HHVs is presented. The fuel savings obtained through the developed algorithms used for prediction and optimization are determined in a simulation study, and the functionality of the concept is proven in a hybrid hydraulic testing vehicle.}, author = {Bender, Frank A. and Kaszynski, Martin and Sawodny, Oliver}, doi = {10.1109/TVT.2013.2259645}, file = {Bender2013b_IEEE_TVT_Drive_Cycle_Prediction_and_Energy_Management.pdf:..\\pdfs\\Bender2013b_IEEE_TVT_Drive_Cycle_Prediction_and_Energy_Management.pdf:PDF}, isys_authors = {fbender}, isys_group = {Automotive}, journal = {IEEE Transactions on Vehicular Technology}, number = 8, pages = {3581-3592}, title = {Drive cycle prediction and energy management optimization for hybrid hydraulic vehicles}, volume = 62, year = 2013 }

Akademische Ausbildung mit Abschluss

Elektrotechnik (1986 – 1991), Universität Karlsruhe, Abschluss: Dipl.-Ing.

Zweitstudium Wirtschaftswissenschaften (1991 – 1995), Fernuniversität Hagen, Abschluss: Dipl.-Wirt.-Ing.

Wissenschaftliche Abschlüsse

Habilitation: Habilitationsschrift mit dem Thema „Kranautomatisierung und Großraumrobotik“, Universität Ulm, 2001, Prof. Hofer

Promotion zum Dr.-Ing.: Dissertation mit dem Thema „Modellbasierte Qualitätsregelung in der spanenden Fertigung am Beispiel der Drehbearbeitung“, Universität Ulm, 1996, Prof. Goch

Beruflicher Werdegang nach Studienabschluss

2005 – heute, Direktor Institut für Systemdynamik, Universität Stuttgart

2002 – 2005, Professor und Institutsleiter TU Ilmenau, Institut für Automatisierungs- und Systemtechnik (C4), Leiter des Fachgebiets Regelungstechnik, Mitglied in der Leitung des Fraunhofer Anwendungszentrums Systemtechnik, Ilmenau

1996 – 2001, Wissenschaftlicher Mitarbeiter an der Universität Ulm, Abteilung: Mess-, Regel- und Mikrotechnik, Leiter der Arbeitsgruppe Automatisierungstechnik

1991 – 1996, Wissenschaftlicher Mitarbeiter an der Universität Ulm, Arbeitsgruppe Messtechnik