OPED - Optimization of Electric Drives

EMD – E-Mobility and Alternative Drivetrains

The research group E-Mobility and Alternative Drivetrains (EMD) focuses on advancing sustainable road transport through digital innovation in e-mobility and alternative drivetrains. We address the urgent need for decarbonization by developing solutions that improve energy efficiency and reduce emissions in transportation systems.

We bring research to practical applications, achieving both environmental sustainability and economic feasibility. Our work supports the transition to a carbon-neutral future while delivering measurable value to industry and society.

 

Research Focus

  • Multi-objective design optimization of electric drives (OPED, more below)
  • Reduction of indirect greenhouse gas emissions of electric powertrains
  • Circular economy for powertrains
  • Simulation of electric and electrified powertrains
  • Decarbonization of road traffic
  • Digitalization of development processes
  • Functional Safety of powertrains

 

OPED - Optimization of Electric Drives

Our software OPED enables a multi-objective design optimization of electric drives, consisting of inverter, electric machine and gearbox. To do so, an evolutionary optimization algorithm from AI methods varies a multitude of design parameters of the electric powertrain to find best possible design solutions. Starting from requirements on system level, the optimization thus automatically generates optimal solutions regarding, e.g., performance, package, cost, energy efficiency and carbon footprint. The result is represented by a Pareto front of optimal solutions from which decision makers can select the most promising one.

OPED is a TU Graz development and the result of over a decade of research. It is also successfully established in industry application of a top worldwide Tier-1 automotive supplier to both accelerate and improve product development. Beyond purely electric powertrains, the method has also been applied to hybrid powertrains. 

The underlying technology can be applied to optimize any model-based engineering design task - Reach out to us to discuss your engineering optimization challenge!

Scientific Publications

Martin Hofstetter, Dominik Lechleitner and Mario Hirz Carbon Footprint Minimization of Electric Powertrains by Multi-Objective Design Optimization 24th International VDI-Conference Dritev 2024 383-396 Show publication in PURE
D. Lechleitner, M. Hofstetter, M. Hirz, C. Gsenger and K. Huber Parksperren-Integration für elektrisch angetriebene Achsen mittels multikriterieller Design-Optimierung Show publication in PURE
Martin Hofstetter, Dominik Lechleitner, Mario Hirz and Adrian Schiffer Inverter Design Optimization Method Focusing on Electric Powertrain Package Integration Show publication in PURE
Konstantin Huber, Albert Sorgdrager, Philipp Laaber, Dominik Lechleitner and Martin Hofstetter Multi-Objective System Optimization by Means of Evolutionary Algorithms for Electric Powertrain Development: Magna-OPED 43. Internationales Wiener Motorensymposium Show publication in PURE
Dominik Lechleitner, Martin Hofstetter, Mario Hirz, Christoph Gsenger and Konstantin Huber Parking Lock Integration for Electric Axle Drives by Multi-Objective Design Optimization DRITEV – Drivetrain for Vehicles 2021 303 - 318 Show publication in PURE
Dominik Lechleitner, Martin Hofstetter and Mario Hirz Cost Reduction of Electric Powertrains by Platform-Based Design Optimization Show publication in PURE
Mario Hirz, Martin Hofstetter and Dominik Lechleitner Electric Propulsion Systems Design Supported by Multi-Objective Optimization Strategies 16th European Automotive Congress EAEC 2019 Show publication in PURE
Mario Hirz, Martin Hofstetter and Dominik Lechleitner Electric Propulsion Systems Design Supported by Multi-Objective Optimization Strategies Show publication in PURE
Martin Hofstetter, Dominik Lechleitner and Mario Hirz System Cost Reduction by Electric Powertrain Design Optimization Show publication in PURE
Arno Eichberger, Susanne Wrighton, Harald Kraus, Martin Hofstetter, Martin Ackerl, Ricardo Tiefengruber, Georg Peneder, Michael Schadler, Norbert Hafner, Günter Kronawetter, Angelika Rauch and Rudolf Hubauer Mobile Multi-functional Urban Logistics-Platforms with Electric Drive Train 7th Transport Research Arena (TRA2018) Show publication in PURE
Martin Hofstetter, Mario Hirz, Martin Gintzel and Andreas Schmidhofer Multi-Objective System Design Synthesis for Electric Powertrain Development 2018 IEEE Transportation and Electrification Conference and Expo (ITEC) 286-292 Show publication in PURE
Martin Hofstetter, Dominik Lechleitner, Mario Hirz, Martin Gintzel and Andreas Schmidhofer Multi-Objective Gearbox Design Optimization for xEV-Axle Drives under Consideration of Package Restrictions International VDI Congress Dritev - Drivetrain for Vehicles 239-254 Show publication in PURE
Martin Hofstetter, Dominik Lechleitner, Mario Hirz, Martin Gintzel and Andreas Schmidhofer Multi-objective gearbox design optimization for xEV-axle drives under consideration of package restrictions Show publication in PURE
Martin Hofstetter Multi-Objective System Design Synthesis for Electric Powertrain Development Show publication in PURE
M. Hofstetter, D. Lechleitner, M. Hirz, M. Gintzel and A. Schmidhofer Multi-kriterielle Optimierung eines xEV-Getriebes unter Berücksichtigung von Bauraumeinschränkungen Dritev 239-254 Show publication in PURE
Martin Hofstetter, Mario Hirz and Martin Ackerl System Design Optimization of xEV-Axle Drives with Package Restrictions Proceedings of the FISITA 2016 World Automotive Congress Show publication in PURE
Martin Hofstetter, Mario Hirz and Martin Ackerl Package and Architecture of xEV Axle Drives with Predictive Operating Strategies Show publication in PURE
Martin Hofstetter System Design Optimization of xEV-Axle Drives with Package Restrictions Show publication in PURE
Martin Hofstetter Sensor Range Sensitivity of Predictive Energy Management in Plug-In Hybrid Vehicles Show publication in PURE
Martin Hofstetter, Martin Ackerl, Mario Hirz, Harald Kraus, Paul Karoshi and Jürgen Fabian Sensor Range Sensitivity of Predictive Energy Management in Plug-In Hybrid Vehicles 2015 IEEE Conference on Control and Applications, CCA 2015 - Proceedings 1925-1932 Show publication in PURE