An Overview of Hybrid Simulation Phenomena and Their Support by Simulation Packages

Continuous system dynamics can be described by, possibly large, systems of di erential equations. These can be either ordinary di erential equations (ODEs) or contain algebraic constraints as well to form di erential and algebraic equations (DAEs). Complex systems, such as aircraft, often operate in di erent modes of continuous operation and when mode changes occur, the continuous dynamics change abruptly. Even small physical components may operate in di erent modes, e.g., a diode can operate as a short or open circuit, requiring abrupt discrete changes in the system of equations. Hybrid systems combine the continuous behavior evolution speci ed by di erential equations with discontinuous changes speci ed by discrete event switching logic. Numerical simulation of continuous behavior and of discrete behavior is well understood. However, to facilitate simulation of mixed continuous/discrete systems a number of speci c hybrid simulation issues must be addressed. This paper presents an ove...

• Type: Conference
• Year: 1999
• Where: HYBRID
• Authors: Pieter J. Mosterman
• Keywords: Control Systems, Di Erential Equations, HYBRID 1999, Hybrid Simulation, Simulation