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From physical modelling to compositional models of hybrid systems

  • Simin Nadjm-Tehrani
  • Jan-Erik Strömberg
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 863)

Abstract

By a hybrid system we mean a discrete controller in interaction with a physical environment. This paper discusses methodologies for incorporating physically grounded models in representations of hybrid systems. To this end, we study a driver support system, an example which includes unmodelled inputs. We consider models at different levels of abstraction. First, we show that discrete models of the environment can be obtained from the continuous models without losing relevant information. We do this using an analysis of the continuous state space. Dynamic Transition Systems (DTS) are used for the modular modelling at this level of abstraction. Next, we consider models using Hybrid Transition Systems (HTS). This can be seen as a modular version of timed transition systems allowing both differential and algebraic equations in each mode. Finally, we comment on expressivity requirements on hybrid formalisms for modelling realistic physical systems.

Keywords

Model Check Hybrid System Transition System Temporal Logic Discrete Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • Simin Nadjm-Tehrani
    • 1
  • Jan-Erik Strömberg
    • 2
  1. 1.Dept. of Computer and Information ScienceLinköping UniversitySweden
  2. 2.Div. of Automatic Control, Dept. of Electrical EngineeringLinköping UniversityLinköpingSweden

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