Modeling of hybrid systems

• The distinguishing characteristic of hybrid systems is the interaction between a continuous-time and a discrete-event component. By modeling these different components using differential equations and finite state automata, it is possible to represent a wide range of phenomena present in physical and technological systems. This paper illustrates hybrid dynamics by several simple examples. Some of these examples illustrate properties of hybrid systems not present in purely continuous or purely discrete systems, while others illustrate application domains such as vehicle control and real-time systems. A mathematical model called a hybrid automaton is then introduced, to show how hybrid dynamics can be formally analyzed.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)

Keyword

Hybrid system

Real-time system

Dynamical system

Control theory

Embedded system

Zeno execution

Zeno time

Hierarchical control

Computer-controlled system

Discontinuous control

Switched system

Automaton

Finite state machine

Differential equation

Vehicle control

Automated highway system

PID control

Automatic control

Discrete-event system

Publication and Content Type

ref (subject category)

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