Graph Based Engineering Systems

The research group Graph Based Engineering Systems (Graphing) develops software solutions for the modeling, simulation, and optimization of technical systems. A common feature of these software systems is the graphical approach to the modeling of applications and domains.

This is realized by using graph based models and graphical languages for which visualizations and editors are developed. Fields of application include energy system technology, production planning, error analysis and switch cabinet layout.

In addition to solutions for specific industrial applications, the group runs various research projects on models for graphical languages, their visualization and layout as well as simulation and optimization methods.


  • Optimization, simulation and economic assessment of energy systems with TOP-Energy®
  • Standardized and adaptive error analysis plus correction for production systems with QUICKSTEPS®
  • Model-based software development grounded on hierarchical state machines
  • Research on graphical model description languages and parametric 3D-models for deep drawing tools
  • Placement and routing algorithms for automated switch cabinet layout
  • In-house software framework for graph based engineering systems
  • Graphical domain-specific languages and layout algorithms

Research Projects


Development of a diagnostic system for cooperative, intelligent traffic systems for commissioning and maintenance using the example of Car2X

Car2X connects vehicles and infrastructure (e.g. traffic lights) to create cooperative and intelligent traffic systems.


Integration of industrial energy systems in regional energy markets for stabilizing the grid

In this project, regional energy markets are examined in terms of their impact on the flexibility of market participants.


Software-supported model identification based on measurement data of industrial energy systems

The ModEst project aims to support or automate the modeling of energy systems by using measurement data from energy management systems.


Method for the model-driven design of thermoforming tools

Development of a new graphical modeling language for the model-driven design of thermoforming molds, which significantly facilitates the mapping of product logic and design knowledge.


Transfer of thermal energy storage technologies for chemical parks / Simulation of new integration concepts

In this project, the integration of high-temperature thermal energy storage and power-to-heat plants in a chemical park are to be investigated and promising integration options identified. The subproject of GFaI concerns the implementation and evaluation of such integration options with a software-based energy system optimization.

Funded by: Federal Ministry for Economic Affairs and Energy / 7. Energieforschungsprogramm; funding code: 03ET1646E


Operational and strategic optimization of decentralized energy systems with long-term temporal links

In this project, the operational and strategic optimization of decentralized energy systems with long-term temporal links is in the main focus. This includes both industrial energy systems and energy systems in larger properties or districts.