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COMSOL Day: Automotive
See what is possible with multiphysics simulation
Automotive applications often involve several interacting physical phenomena. Cabin noise, for example, may depend on acoustic fields, structural vibrations, and the properties of sound-absorbing materials. Battery performance is influenced by electrochemical reactions, heat transfer, fluid flow, and mechanical stresses, while the design of power electronics requires consideration of electromagnetic losses, thermal management, and structural reliability.
Multiphysics simulation provides a unified framework for studying these interactions and their effects on overall system performance, helping automotive engineers understand the behavior of components and systems early in the development process. Moreover, modeling and simulation can be used to evaluate design concepts, identify optimal configurations, and investigate performance under operating conditions that may be difficult or expensive to reproduce experimentally.
Join us for COMSOL Day: Automotive to learn how multiphysics models can be used to analyze automotive components and systems and how established simulation workflows can be made accessible through specialized applications and connected to operational data. There will be sessions on cabin acoustics, battery modeling, power electronics, simulation apps, and digital twins. Through technical presentations and practical examples, we will share insights into the possibilities and methods of using COMSOL Multiphysics® for automotive research, development, and design.
Schedule
Understanding the coupled physical phenomena at play is crucial when using modeling and simulation for the research and design of vehicle electrification technologies like batteries, high-voltage cables and connectors, electric powertrains, and power electronics. To account for this complexity, scientists and engineers from industry-leading organizations rely on the multiphysics modeling capabilities of the COMSOL Multiphysics® software.
The software is also widely used for related automotive applications, including loudspeaker design and cabin acoustics. In addition, its unique functionality for creating standalone simulation apps based on multiphysics models and surrogate models makes it possible for larger groups of engineers and scientists within an organization to benefit from modeling and simulation.
Attend this session to get an overview of how multiphysics models, simulation apps, digital twins, and surrogate models are used for vehicle-electrification and related automotive applications. We will also introduce the specific topics that will be covered in each session during this COMSOL Day.
Roman Obrist, HUBER+SUHNER AG
The development of reliable electric vehicle charging connectors requires engineers to balance mechanical performance, geometric constraints, cost, and development efficiency. This challenge became evident in the development of an EV power plug, where deformation of the plastic contact holder during assembly could affect both structural integrity and sealing performance. Conventional design modifications, such as local reinforcement features, provided only limited improvement.
By introducing simulation into the development process, the existing design could be improved systematically rather than through iterative physical modifications. A simplified and validated structural model was combined with free-shape and topology optimization. The two methods provided complementary insights into effective geometry changes and the most relevant load-bearing regions. Combining these insights with engineering expertise and manufacturing requirements led to a practical final design with a 90% reduction in deformation, subsequently confirmed by experimental testing.
In this keynote talk, Roman Obrist will demonstrate how the early use of simulation and optimization can accelerate design iterations, reveal nonintuitive solutions, and improve products before costly design decisions are fixed.
Automotive acoustics play a vital role in the development of advanced car audio systems for precise sound reproduction and the integration of smart system and AI-enhanced functionality. This multidisciplinary field merges acoustics, structural mechanics, and electromagnetics to model and optimize key components essential for vehicle performance and passenger experience.
The COMSOL® software is well suited for multiphysics and multimethod acoustics modeling for broadband cabin acoustics with integrated audio systems and personal sound zones, electroacoustic speaker design, and vibroacoustic analysis of vehicle structures, including car door stiffness analysis and rattle prediction.
Join this session to learn about the capabilities of COMSOL Multiphysics® for modeling cabin acoustics.
Modeling and simulation supports battery development by enabling virtual evaluation of battery performance under a wide range of operating conditions. COMSOL Multiphysics® can be used to model electrochemical processes within battery cells together with the thermal, mechanical, and electrical behavior of battery modules, packs, and surrounding components.
This session will provide an overview of battery modeling workflows in COMSOL Multiphysics®, addressing topics ranging from electrochemical cell models and aging studies to thermal management and battery pack design. Additional topics will include:
- Charge and discharge simulations
- Thermal and electrochemical coupling
- Battery packs containing hundreds of individually modeled cells
- Surrogate modeling
- Cosimulation for system-level design
- Structural analyses like indentation and penetration tests
As cars and trucks increasingly rely on electrical control units (ECUs), there is a growing need for efficient power electronics devices such as power optimizers, converters, rectifiers, amplifiers, and switches. For electric vehicles, the design of efficient electric powertrains, including inverters and capacitors, is essential for extending battery life and range.
The COMSOL Multiphysics® software provides specialized functionality for modeling and optimizing these devices. In addition to specialized features for lumped circuit extraction, the software also provides multiphysics modeling capabilities that enable users to include thermal and structural effects when designing semiconductor devices and power modules, including metal–oxide–semiconductor field-effect transistors (MOSFETs) and insulated-gate bipolar transistors (IGBTs).
Join this session to learn more about the capabilities of the COMSOL® software for modeling components in power electronics. We will provide an overview of how the AC/DC Module and the Semiconductor Module can be used to model and simulate power electronics devices.
Kresten Juel Jensen, Resolvent
Advanced multiphysics simulation has become essential for understanding and optimizing complex systems such as electric vehicle battery packs, where electrochemical, thermal, and mechanical phenomena interact across scales. However, the true value is realized when these models are made accessible beyond simulation specialists.
In this keynote talk, Kresten Juel Jensen will demonstrate how simulation apps and digital twins can transform battery development workflows by embedding high-fidelity physics into intuitive applications. By combining detailed multiphysics models with reduced-order representations, engineers can deliver fast, reliable predictions of performance, degradation, and lifetime directly to design, test, and operational teams.
Using real-world examples from electric truck battery development, he will show how simulation apps enable rapid exploration of design and operating conditions, significantly reducing reliance on costly and time-consuming physical testing. Extending this approach, digital twins integrate simulation models with operational data to continuously assess state of charge, state of health, and remaining useful life, supporting both design optimization and in-service decision-making.
Lastly, he will provide an overall insight into how organizations can leverage simulation apps and digital twins to bridge the gap between advanced physics and real-world engineering decisions.
Modeling and simulation is no longer limited to the expertise of a few individuals within an organization. The availability of simulation tools throughout the product or process design workflow — from R&D to the factory floor — allows for a more collaborative and innovative approach to problem solving. Now, even those without prior modeling knowledge can contribute to the process, leveraging the expertise of modeling experts and advanced techniques like digital twins and surrogate models.
To facilitate this collaboration, the Application Builder in the COMSOL Multiphysics® software enables modeling experts to create custom apps with user-friendly interfaces that can be employed by scientists and engineers with no modeling experience. In addition, COMSOL Compiler™, an add-on product, enables organization-wide use of standalone simulation apps without licensing restrictions.
By using the Application Builder and COMSOL Compiler™ together with the COMSOL Multiphysics® platform's built-in Model Builder and Model Manager, engineering organizations can establish an efficient, collaborative, simulation-based workflow that is supported by the realistic and predictive capabilities of digital twins and surrogate models.
Join this session to learn how the Application Builder and COMSOL Compiler™ can transform your organization's approach to simulation, making advanced tools accessible and fostering a culture of collaborative innovation.
Register for COMSOL Day: Automotive
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COMSOL Day Details
September 3, 2026 | 11:00 a.m. EDT (UTC-04:00)
Keynote Speakers
Roman Obrist is a senior development engineer in simulation at HUBER+SUHNER AG, where he is technology owner of the Simulation and Electromagnetic Compatibility (EMC) initatives. Since 2012, Obrist has been working in the field of engineering simulation, supporting product development through electromagnetic, thermal, structural, and CFD analyses as well as optimization techniques. His current work focuses on leveraging simulation-driven engineering to produce connectivity solutions for transportation and industrial applications. Prior to joining HUBER+SUHNER, he worked at COMSOL®, Schmid & Partner Engineering AG (SPEAG), and the Institute for Energy Technology (IET) at the Eastern Switzerland University of Applied Sciences (OST). He holds a BSc and an MSc in electrical engineering from OST.
Kresten Juel Jensen is cofounder and partner at Resolvent, a specialized engineering consultancy focused on multiphysics simulation and application-driven engineering solutions. With a background in chemical engineering and mathematical modeling, he has spent more than a decade working at the intersection of simulation, product development, and R&D strategy.
At Resolvent, Jensen works closely with industrial clients to translate complex physical phenomena into actionable engineering insights, combining high-fidelity multiphysics models with practical implementation in design and development workflows. He is particularly focused on how to scale engineering and simulation knowledge beyond specialists, accelerating development cycles and improving decision-making across teams.
