Discrete-Time Control for Rectangular Hybrid Automata

Rectangular hybrid automatamodel digital control programs of analog plant environments. We study rectangular hybrid automatawhere the plant state evolves continuously in real-numbered time, and the controller samples the plant state and changes the control state discretely, only at the integer points in time. We prove that rectangular hybrid automata have nite bisimilarity quotients when all control transitions happen at integer times, even if the constraints on the derivatives of the variables vary between control states. This is in contrast with the conventional model where control transitions may happen at any real time, and already the reachability problem is undecidable. Based on the nite bisimilarity quotients, we give an exponential algorithm for the symbolic sampling-controller synthesis of rectangular automata. We show our algorithm to be optimal by proving the problem to be EXPTIME-hard. We also show that rectangular automata form a maximal class of systems for which the samp...

• Type: Conference
• Year: 1997
• Where: ICALP
• Authors: Thomas A. Henzinger, Peter W. Kopke
• Keywords: ICALP 1997, Nite Bisimilarity Quotients, Programming Languages, Rectangular Hybrid, Rectangular Hybrid Automatamodel