We are glad to announce the 16th International Modelica & FMI Conference. It will take place at the marvelous city of Lucerne in Switzerland from September 8-10, 2025. It is organized by HSLU, the University of Applied Sciences and Arts Lucerne, in cooperation with the Modelica Association. This is the first visit of this conference series in Switzerland.

Conference Follow-up

Thank you to everyone who joined the 16th International Modelica & FMI Conference.

• Photo Gallery Impressions from the conference, sessions, and social events (via Google Drive, no sign-in required).

• Conference App The app with the full program and paper submissions remains available.
  Some authors also chose to share their slides, and you can find the author details for each contribution.
  Please note: The app is expected to stay online for an extended period, but availability cannot be guaranteed indefinitely.

Sponsors

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About the Conference

The International Modelica & FMI Conference is the main event for users, library developers, tool vendors and language designers to share their knowledge and learn about the latest scientific and industrial progress related to Modelica, FMI, SSP, eFMI and DCP. The program will cover processes and tools for the modeling of complex physical and cyber-physical systems as applied to a wide range of research and industrial applications.

In addition to paper presentations, the conference features several Modelica tutorials for beginners and advanced users, as well as industrial user presentations, vendor sessions, and an exhibition.

Campus Zug-Rotkreuz, Suurstoffi 1, 6343 Risch-Rotkreuz, Switzerland

Location & Directions

Virtual Tour

Discounted Hotels

Agenda

Full Conference App

Final Conference Program

Tutorial Abstract Booklet

Conference Brochure

Tutorials

1. Beyond Simulation: Building Workflows and Web Applications with Modelica and Python
2. CasADi tutorial on dynamic optimization with FMI 3.0 Model Exchange
3. eFMI®: A beginner’s overview and hands-on
4. Exporting and importing an FMU using C code
5. FMI Beginners Tutorial - Exporting, Simulating, and Co-Simulating FMUs
6. FMUGym: From Uncertainty-Aware Simulation to Learning-Based Control with FMI and Python
7. Introduction to Modeling, Simulation, Debugging, and Interoperability with Modelica and OpenModelica
8. Modelica in the Browser: Modeling, Simulation and Web App Integration for Custom UI
9. Modeling and Simulation of profitableness analyses in Modelica – industrial energy system meets variable energy prices
10. Modeling and Simulation of Robotic Arm Dynamics and Control in Modelica with MWORKS
11. Modeling complex thermal architectures using the DLR ThermoFluid Stream Library
12. Regression Testing with Dymola and the Testing Library
13. System Structure and Parameterization
14. Tutorial on FMI3 co-simulation with UniFMU
15. Using SMArtInt+ for machine-learning and easy integration of artificial intelligence in Modelica

Please let us know your tutorial preferences. The tutorial survey helps us plan the tutorial sessions. It is intended for conference participants only and should be filled out only once.

Sunday, September 7

Spontaneous group hike to the Niederbauen for nature and hiking enthusiasts.

Details & Registration

Monday, September 8

Tuesday, September 9

Wednesday, September 10

Thursday, September 11 (Post-Conference Program)

The post conference program is not part of the conference ticket but is organized by the Modelica Association and its first part is also open to non-members. Participation is on your own expense.

The goal of the advisory meetings is that current or future users can give feedback to the Modelica Association. You can present your challenges and detail your needs. In case you want to take part at one of these advisory meetings as guest:

• please register for the FMI Advisory meeting via email.
• please register for the Modelica Advisory meeting via online booking. You can then also choose to join from 09:00 via WebEx.

The post conference program then proceeds exclusive for members of the MA until Friday September 12, 15:00.

Contact

Sponsoring contracts are signed directly with the local organization of the conference, headed by Prof. Dr. Ulf Christian Müller.

Head of Research Group System Modeling, Digital Twins at HSLU T&A, IME
Prof. Dr. Ulf Christian Müller
ulfchristian.mueller@hslu.ch
Phone: +41 41 349 39 53

Technikumstrasse 21
6048 Horw
Switzerland

The Modelica Association appreciates your support and will help you in your preparations for the conference.

Keynotes

Physics-Informed AI, Tuesday, September 9th

Mishra Siddhartha, Professor and Deputy Head of the Seminar for Applied Mathematics at ETH Zürich

Presentation

AI is increasingly being used in the fast and accurate simulation of physical systems. In this keynote, we will discuss how knowledge of the underlying physics can be explicitly incorporated into AI systems for physical simulations. Key examples will highlight the potential gains as well as the involved challenges.

Opportunities and Challenges in Design and Operation of Integrated Energy Systems, Wednesday, September 10th

Johan R Åkesson, Associate Director for Computational Engineering at Carrier, Former CTO Modelon AB

Presentation

The complexity of modern integrated energy systems demands the systematic use of systems engineering methods and tools to address key challenges across product lifecycle. This keynote will explore three related and critical areas: 1) the demand for diverse model fidelities and analysis, 2) maintaining consistency across design layers, and 3) the importance of seamless tooling and integration. Real-world, HVAC-specific examples will highlight how these challenges are being tackled in practice and the opportunities they present. For over two decades, Carrier has relied on Modelica as a cornerstone technology for model-based product design. The journey began with the development of control systems for transportation refrigeration, where transient simulations allowed for rapid control function development and verification. Today, while controls development remains a vital application, Carrier has expanded Modelica’s use across the entire product lifecycle—from conceptual design, through testing and verification, to business sales tools, and into operation with monitoring and diagnostics. Design and operation of highly integrated energy systems such as data centers and district heating systems also calls for new methods and tools. Differentiated applications has driven diversified analysis with Modelica models. Modelica-based steady-state simulation has emerged as a back-bone in product design, sales tools, as well as in field diagnostics. Steady-state and transient optimization is also a necessary element across the product life cycle. The need for diversified analysis and computation is further amplified by application of systems engineering methods where requirements, design space exploration, and validation and verification are key elements.

Panel Discussion

For the first time at the International Modelica Conference, we will have a Penel discussion. The topic is: Open Standards vs. Open source, Collaboration or Conflict?.

We choose panelist from a braod range of companies and organizations using Modelica for their product design and research. Our distinguished Panelists are:

Adam Moravanszky, Senior Director Simulation Technology, NVIDIA. At NVIDIA, Adam leads teams advancing open source simulation projects such as PhysX and Newton, and chairs the Physics Working Group of the Alliance for OpenUSD (AOUSD) open standard.

Clément Coïc, Technology Cluster Lead - Digital Mechatronics, Siemens Healthineers. Clément leads innovation projects that investigate the value and interconnection of new digital technologies for Siemens Healthineers purposes. A specific focus is carried into leveraging system simulation for better control or path planning of robotic systems, enhancing Machine Learning models with Physics, and modeling the physical behavior of PhysicalAI developments. His works heavily relies on open standards, like Modelica and FMI, and open source modules - like Julia’s SciML ecosystem, ROS or OpenCV and Yolo, to name a few.

Dirk Zimmer, Chairman of the Modelica Association. Expert for equation-based modeling and simulation at the Institute of Robotics and Mechatronics, German Aerospace Center (DLR). The open Modelica standards provide a real technical, economical as well as societal benefit. Promoting them in Dirk’s role as Chairman is hence an honor. Also DLR profits from them: in the field of robotics the multi-domain simulation and control aspects play a crucial role for further advancement.

Marius Dupuis, CEO, ASAM e.V. The CEO’s role at ASAM is to manage a team that keeps things running, kicks off new endeavors, and makes sure we are seen and heard. Marius’ role is right in the midst of system simulation and (open) standards. It comprises getting members on board, motivating them to initiate and conduct standardization projects, providing a roadmap and legal framework that fit the market, and keeping the association in a good shape.

Michael Wetter, Computational Senior Scientist, Lawrence Berkeley National Laboratory (LBNL). Leading the development of modular modeling, design and controls based on Modelica and FMI for building and district energy and control systems. Michael Wetter has been leading the Modelica Buildings Library which is used in industry and academia for the design of HVAC equipment, building and district energy systems, and data center cooling systems. He also spearheaded the development of digitalization of building control design-installation-commissioning, leading to the proposed ASHRAE Standard 231P, expected to be approved within the next few months, which uses a subset of Modelica to standardize control logic formulation in a vendor-independent format.

Ulrich Schulmeister, Head of Systems Engineering, Simulation, Virtualization and Vehicle Safety at the Central Department in the Bosch Mobility Company. Ullrich has ore than 30 years of experience in automotive software, function development, system development in series production, pre-development and corporate research. He leads the Initiative “Virtualization 1st” with the goal to increase speed and efficiency in product development and to enable new business.

We are looking forward to a lively and informative discussion with our panelists. The panel discussion will evolve around a few prepared questions, and questions from the audience. It will be moderated by our board member Hubertus Tummescheit, Board member Modelica Association, President Model Based Innovation LLC.

Registration and Accommodation

Registration is now open at Eventfrog. Please register soon to make planning easy for us. Early Bird tickets will be available until July 7th. The conference registration is offered at the following conditions.

The conference will take place at the Rotkreuz campus of Lucerne University of Applied Sciences and Arts, which can be reached in as little as 13 minutes by train from Lucerne railroad station. We recommend taking the train to the campus, as the campus is located directly at Rotkreuz station. The university cannot provide parking spaces in Rotkreuz. There are parking spaces in the vicinity of the campus whose availability and prices are not subject to the university.

Under the following link, conference participants will find a limited contingent of hotels in Lucerne and Rotkreuz at discounted rates. Please use the search window to view all available hotels and prices. We would like to point out that Lucerne offers significantly more tourist attractions than Rotkreuz. However, Lucerne is in high season during the conference, so accommodation costs may be higher. Cheaper alternatives can be found, for example, in youth hostels in the city of Lucerne, Airbnbs, or hotels in the vicinity of Lucerne and Rotkreuz with good rail connections.

Scope of the Conference

Modelica is a freely available, equation-based, object-oriented language for convenient and efficient modeling of complex, multi-domain cyber-physical systems described by ordinary differential, difference and algebraic equations. The Modelica language and the companion Modelica Standard Library have been utilized in a variety of demanding industrial applications, including full vehicle dynamics, power systems, robotics, buildings and district energy systems, hardware-in-the-loop simulations and embedded control systems. The Functional Mock-up Interface (FMI) is an open standard for the tool-independent exchange of models and for co-simulation. It is supported by many Modelica and non-Modelica tools and is the key to utilizing Modelica models in non-Modelica environments.

Development in the Modelica Association is organized in Modelica Association Projects:

• LANG - Modelica Language
• LIB - Modelica Libraries
• FMI - Functional Mock-up Interface
• eFMI - Functional Mock-up Interface for embedded systems
• SSP - System Structure and Parameterization of Components for Virtual System Design
• DCP - Distributed Co-Simulation Protocol

These projects collaborate to design and maintain a set of coordinated standards for modeling and simulation of complex physical systems.

The Modelica & FMI conference will bring together people using Modelica and/or other Modelica Association standards for modeling, simulation, and control applications, such as Modelica language designers, tool vendors and library developers. The Modelica Conference provides Modelica users with the opportunity to stay informed about the latest language, library, and tool developments, and to get in touch with people working on similar modeling problems. The conference will cover topics such as the following:

• Multi-engineering modeling and simulation with free or commercial Modelica libraries
• Library Award for new Open-Source Modelica Libraries.
• Applications and new tool developments for the Functional Mock-up Interface (FMI) and Layered Standards (LS)
• Applications and new tool developments for the System Structure and Parameterization (SSP) standard
• Applications and new tool developments for the FMI for embedded Systems (eFMI) standard
• System Simulation as an integrative part of Model-based Systems Engineering (MBSE)
• Machine Learning and AI in system simulation
• Automotive applications
• Applications in thermodynamic, energy systems and building physics
• Mechatronics and robotics applications
• Medicine and biology applications
• Maritime and offshore applications
• Other industrial applications, such as electric drives, power systems, aerospace, etc.
• Large-scale system modeling and simulation code generation for parallel computing architectures
• Real-time and hardware-in-the-loop applications; Code generation for embedded control systems
• Use of Artificial Intelligence (AI) methods in simulation; SimToReal for AI training purposes
• Applications of Modelica and FMI for optimization and control design
• Modelica modeling, simulation and design tools
• Symbolic algorithms and numerical methods for model transformation and simulation
• Experimental language designs and implementations related to Modelica standards
• Modelica in other application areas (mathematical programming, databases etc.)
• Modelica for teaching and education

Organization and Contact

The conference is organized by Prof. Ulf Christian Müller from HSLU, the University of Applied Sciences and Arts Lucerne in cooperation with the Modelica Association

For general questions, please send an email to modelica25@modelica.org.

Conference Board

• Prof. Dr. Ulf Christian Müller, University of Applied Sciences and Arts Lucerne (Conference Co-Chair)
• Dr. Dirk Zimmer, German Aerospace Center (Conference Co-Chair)
• Prof. Francesco Casella, Politecnico di Milano
• Prof. Lars Mikelsons, University of Augsburg
• Dipl.-Math. Christian Bertsch, Robert Bosch GmbH
• Dr. Hubertus Tummescheit, Model Based Innovation LLC
• Dr. Rui Gao, RIGO TECH Co. Ltd.
• Prof. Martin Sjölund, Linköping University