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Item type:Publication, Access status: without files , Early model-based functional integration testing for aircraft systems architectures demonstrated on a hydrogen-powered propulsion unit(2025-10-25); ; ; ; Developing complex, hydrogen-powered aircraft and their on-board systems is challenging due to a vast design space, limited knowledge, and high uncertainties. Hence, the risk of undetected errors introduced during conceptual design increases. To address this, a method for early model-based functional integration testing as an integrated part of systems architecting is proposed. It includes simulation-based testing of functional behavior under nominal and off-nominal conditions based on executable architecture models, enabling the discovery of design errors and the down-selection of large design spaces. The method is demonstrated on a fuel cell-powered propulsion unit of a novel hydrogen-powered concept aircraft, showing its value for complex, novel systems in off-design conditions.Publicationtype: Conference Paper81 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Universal Configuration Format for Virtual, Hybrid and Hardware Testing of Avionic PlatformsAvionics module configuration will become more com-plex due to advancing technologies, including more autonomy and further digitalization. This leads to an increase of integrated systems, which are used to host the respective applications on avionic platforms. With emerging design methods using model-, software-, or hardware-in-the-Ioop testing, continuous information propagation is critical for their seamless integration. While state-of-the-art configuration approaches already implement automation to reduce human error and increase efficiency, their application is usually limited to a singular target environment. For example, a particular device type is often configured or represented in a proprietary format. However, platform configuration has to be transferable to include as many target environments (i.e., simulation, real hardware) as possible. This drastically reduces the amount of redundant configuration workload and improves development efficiency. Therefore, a robust and automated platform-level configuration approach is required. The Universal Configuration Format (UCoF) offers a new approach for the configuration of avionic platforms for multiple target environments. With UCoF, avionics platforms can be integrated on any virtual, hybrid, or real hardware test-benches. UCoF is an open, model-based format, standardizing the storage of data, resulting in a core database, that creates a single source of truth for all configuration information throughout the whole development process. Thereby, a holistic approach is achieved, enabling transparent workflows and easily traceable change management. In this paper, an ATA-21-like platform will be configured using UCoF, demonstrating how information is stored for multiple target environments in a single database, without any redundant data.Publicationtype: Conference Paper32 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , A universal configuration format for avionicsAvionics module configuration, especially in the face of advancing technologies, will become more complex as computational demands rise. This requires a robust and automated approach while adhering to industry standards. However, state-of-the-art configuration is still highly error-prone and suffers from various stakeholders working with unsynchronized and decentralized data. This causes unnecessary iterations, leading to delays in development. The Universal Configuration Format for Avionics (UCoF), integrated into the AvioNET framework, presents a forward-looking solution.UCoF, built upon a meta-model approach, strives to enhance the configuration process through model-based methods. It meets essential configuration management requirements and offers versatility by supporting the configuration of diverse avionic platforms. Combining essential data for configuring real avionics device families, implementation targets and network design grants users access to a comprehensive data set throughout the configuration process.Publicationtype: Conference Paper20 12 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Introduction of a dedicated platform level for IMA systems development with an extensive automation tool supportThis paper presents an optimized workflow for development of aircraft systems on an IMA platform by introduction of a dedicated platform level between the module equipment and the aircraft system function. This is capsuled in a model-based development process that considers a shared and clearly defined interface between the different process stakeholders and a logical share of responsibilities. By use of an extensive and sophisticated toolchain at platform level, that utilizes already existing and qualified equipment level toolchains, the configuration creation is highly automated at the design stage. At the V&V stage, a fundamental pillar of development assurance, a platform simulation toolchain for early and continuous validation utilizing a hybrid testing approach is presented that provides a continuous testing capability throughout the development cycle. In the frame of the national German research program TALIA, different stakeholders from industry and academia developed and validated this approach by means of implementing real aircraft system functions.Publicationtype: Conference Paper54 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , A semi-automated approach for requirement-based early validation of flight control platformsWith the current trends in aviation like Single-Pilot-Cockpits and more autonomous functions in aircraft, flight control avionics are bound to become more complex. Future platforms will need to compensate for one or even both pilots, which will require systems that are more reliable. However, state-of-the-art development of flight control avionics does not yet support these demands efficiently. The development process involves numerous stakeholders who are communicating without streamlined interfaces. This leads to a slow and error-prone process during development. New methods are required to improve efficiency and to pave the way for future technologies. In this work, the authors introduce a semi-automatic toolchain which derives usable code for the configuration of devices from natural language requirements. The requirements are noted through modular components, stored as a model-based configuration file and are transformed into executables in the last step. This novel approach allows engineers to input their expertise when defining requirements, while removing tedious transformation tasks. Through automatic configuration testing, the validity of the approach is confirmed.Publicationtype: Journal Article71 226