The software development for Cyber-Physical Systems (CPS), e.g., autonomous vehicles, requires both functional and non-functional quality assurance to guarantee that the CPS operates safely and effectively. EAST-ADL is a domain specific architectural language dedicated to safety-critical automotive embedded system design. We have previously modified EAST-ADL to include energy constraints and tr...

In diesem Beitrag werden Ergebnisse aus einem aktuellen AutomotiveProjekt vorgestellt. Das Ziel des Projekts ist es, einen Richtlinienkatalog für die Erstellung von Modellen im Volkswagen Konzern und für dessen Zulieferer zu definieren. Dadurch sollen unter anderem Designfehler vermieden, die Modellqualität erhöht und die Zusammenarbeit mit verschiedenen Lieferanten verbessert werden.

Mathwork’s Stateflow is a predominant environment for modeling embedded and cyberphysical systems where control software interact with physical processes. We present Compare-Execute-Check-Engine (C2E2)—a verification tool for continuous and hybrid Stateflow models. It checks bounded time invariant properties of models with nonlinear dynamics, and discrete transitions with guards and resets. C2E...

In order to increase the flexibility and performance of hydraulically actuated machines there is a demand for more intelligent controllers. This leads to a rapid increase in complexity of the control systems. To manage the complexity and to ensure reliability of these systems, adequate software development methods are needed. In this work, we propose a methodology for structured design of digit...

Embedded systems are often modeled using Matlab’s Simulink and Stateflow (MSS), to simulate plant and controller behavior but these models lack support for formal verification. On the other hand verification techniques and tools do exist for models based on the notion of Hybrid Automata (HA) but there are no tools that can convert Simulink/Stateflow models into their semantically equivalent Hyb...

AbszructIn the complex environment of JPL’s flight missions with increasing dependency on advanced software designs, traditional software validation methods of simulation and testing are being stretched to adequately cover the needs of software development. Our aim is to apply formal method techniques and tools to validate mission-specific components of flight software that are specified using ...