Author(s)

M. Tetreault, B. Marcos & J. Lapointe

Abstract

Forcing function and time delay in qualitative simulation M. Tetreault," B. Marcos^ & J. Lapointe^ * Department of Automated Production Engineering, Ecole de Technologie Superieure, Montreal, Quebec, Canada, H2T IRQ 6 Department of Chemical Engineering, University of Sherbrooke, Sherbrooke, Quebec, Canada, J1K ^ Department of Mechanical Engineering, University of Sherbrooke ABSTRACT Many potential uses of qualitative simulation (QS), such as control systems, require adding functions with explicit time to describe actions taken by agents. Also, many control systems have time delay. Therefore, the modelling of the physical world must consider the effects of actions and time delay. This paper shows how to extend qualitative simulation to include actions and functions with time delay. The effects of actions are some forced variables (or parameters) added to the description of the system. Our algorithm treats these new parameters like state variables (i.e. system param

Keywords