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The advantages of combined simulation techniques have been already frequently discussed and are well-covered by the recently published literature. In particular, many case studies have been presented solving similar domain-specific problems by different multi-paradigm simulation approaches. Moreover, a number of papers exist focusing on theoretical and conceptual aspects of hybrid simulation. However,...
The transition from classic combustion engine vehicles to electric vehicles is a major step to reduce worldwide CO2 emissions. In order to correctly and efficiently investigate impacts on the electric grid and the dimensioning of charging infrastructure, or to explore new technologies for a further increase of the driving range, realistic simulation models are required. In this paper, we present an...
It has been shown that paragliders could considerably benefit from ad-hoc communication, be it for safety or the prolonging of flight times through the exchange of thermal information. The simulation of these so called Flying Ad-Hoc Networks (FANETs) can help evaluate the feasibility and performance of these and other applications inexpensively and at large scale. Their specific communication characteristics,...
Prospective Health Technology Assessment allows early decision making for innovative health care technologies. The main idea is to combine available domain knowledge with advanced simulation techniques in order to predict the effects of medical products and to find bottlenecks and weaknesses within the health system. In our recent publications a hybrid simulation approach with System Dynamics and...
Due to the transition towards a sustainable energy supply, many electricity generation systems are faced with great challenges worldwide. Highly volatile renewable energy sources play an important role in the future electricity generation mix and should help compensate the phase-out of nuclear power in countries such as Germany. Simulation-based energy system analyses can support the conversion into...
Communication will play a significant role in the evolving smart grid which will allow services such as self-healing, real-time demand response and efficient use of energy. Due to the large number, distributed and more importantly intermittent nature of energy resources (e.g. wind and solar plants), smart grid will rely heavily on communication for super-fast balance between electricity supply and...
An approach is presented in which both simulation and testing based on UML are combined in one framework to achieve an improved overall quality. System models are specified by UML diagrams, and are then mapped on C++-code and executed in the OMNeT++ network simulation framework. State-space oriented test models are defined independently from this to express requirements by selected system usages....
In embedded automotive real-time systems correct timing is required to effectively implement distributed applications, time-triggered communication, and integration of intelligent safety applications. We use formal schedulability analysis to validate the task timing for asynchronous real-time systems in an automotive context. Restricting the computational model to purely time-triggered task activation...
The development of economic and hybrid vehicles is only possible with complex systems to control the energy management and engine. The amount of embedded electronics and software to realize these systems increases continuously, and hence the complexity of the integration. The functional validation and testing of these systems is of increasing importance, as these systems have an increasing impact...
In the automotive industry active safety functions are deployed to better protect the passengers and vulnerable road users in case of an accident. To do so, advanced system architectures which enable an OEM to integrate this new functionality safely and efficiently have to be developed. In order to evaluate different possible concepts at an early stage in the development, model-based approaches are...
UML-based modeling is becoming increasingly popular in many software development projects. One of the key aspects is the possibility to support automatic code generation from UML models while keeping the easy to use modeling abstraction for the software developer. The framework Syntony has been developed to generate discrete-event simulations from standard-compliant UML models in order to support...
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