Lukas graduated from the University of Derby in 2020 with first-class BEng (Hons) in Motorsport Engineering. During his undergraduate studies he undertook an industrial placement at Jaguar Land Rover working in Prototype Manufacturing where he gained an insight into vehicle manufacturing learned how to apply Lean Manufacturing, assess feasibility of design and gained experience of technical analysis in a fast paced environment of Pilot Operations. He spent the summer of 2019 working in Race Engines and Quality Department at ŠKODA Motorsport where he gained an experience of working in a WRC 2 motorsport team. For his final year project he worked on Hybrid Powertrain Development for WRC 2 Application which mainly involved HEV modelling and simulation studies. He has a range of interests outside of University from training, motorsport, movies, PS4 and more.
Lukas's PhD aims to develop a systematic approach for product-description driven system model quality assessment and testcase generation, to enhance Model-based validation and verification (V&V) activities throughout the development process of electrified powertrains. One modelling language capable of describing these aspects is Systems Modelling Language (SysML). In its most rigorous usage mode, SysML-as-Executable-System-Architecture, SysML can be used to develop an executable system architecture making majority of parametric and behavioural specifications of a System Architecture Model (SAM) simulatable and executable. This allows for partially of fully automated generation of system interfaces and system test cases and other artifacts important for the system verification and validation directly from the SAM across various domains and development phases.
The objectives to deliver this research project are:
To review current V&V practices used at AVL throughout product development to understand their specific requirements (Phase 1)
Different modelling approaches exist to describe and model systems using modelling languages such as SysML. As a first phase of this project, it is therefore important, to clearly identify the business’s needs that would best suit the additional demand of the industrial environment and integrate within existing software and methodologies that are being developed in parallel in the organisation to accomplish the full potential of its application.
To develop a systematic approach to a product-description driven SysML model quality assessment to understand the model’s maturity and identify available artefacts based on requirements obtained from obj. a (Phase 2)
In order for the SAM to be sufficiently precise and complete to serve as the truth system architecture blueprint for all engineering disciplines and processes involved in the system it must be correct, complete, clear, concise and consistent (Five ‘C’s). Analysis of the necessary level of information within the system model to allow automated generation of required artifacts such as function lists, interface matrix, FMEA & Safety Analysis inputs, testbed interface and configuration information. The second phase of this project will therefore focus on model quality assessment that will result in static model analysis to identify the level of information available and provide further modelling guidelines.
To develop an automated test generation process for available artefacts (from obj. b) to obtain executable test-program (Phase 3)
The interactions between operational, functional, structural, behavioural and communication aspects of the system must be modelled in detail to develop and generate a sufficient test program. The third phase of this research project will therefore focus on capturing the relational aspects of the available SAM to analyse to which extent the test program (including all required information such as test scenario, test case, pre-conditions, post-conditions, test data and expected results) can be generated automatically and develop a software module (addon). This will serve as a proof of concept for automated test case and test artifact generation for system functional verification.
To implement a development-role specific model administration access to present subject matter experts with appropriate information (Phase 4)
Achieving the Five ‘C’s quality as described in Phase 2 of the project plane is important to ensure sufficient level of SAM maturity to enable partially or fully automated processes. It is therefore necessary to efficiently manage the human-model interface and allow the appropriate engineer/team to effectively contribute to the model development. The fourth phase of this project will therefore focus on the implementation of a domain/role specific access management for various stakeholders.
To identify system and process boundaries and interfaces of the methods developed in obj. b - obj. d to integrate within existing PLM architecture (Phase 5)
As depicted in the first phase of this project plan, the usage and application of MBSE and SysML varies depending on the specific requirements and demands of the industry and the business’s needs. The fifth phase of this project will therefore focus on identification of system and process boundaries of the project outcome within the existing PLM architecture and systems processes.
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