Title:
SYSTEM AND METHOD FOR NONLINEAR DYNAMIC CONTROL BASED ON SOFT COMPUTING WITH DISCRETE CONSTRAINTS
Document Type and Number:
WIPO Patent Application WO2004012021
Kind Code:
A9
Abstract:
A control system using a genetic analyzer based on discrete constraints is described. In one embodiment, a genetic algorithm with step-coded chromosomes is used to develop a teaching signal that provides good control qualities for a controller with discrete constraints, such as, for example, a step-constrained controller. In one embodiment, the control system uses a fitness (performance) function that is based on the physical laws of minimum entropy. In one embodiment, the genetic analyzer is used in an off-line mode to develop a teaching signal for a fuzzy logic classifier system that develops a knowledge base. The teaching signal can be approximated online by a fuzzy controller that operates using knowledge from the knowledge base. The control system can be used to control complex plants described by nonlinear, unstable, dissipative models. In one embodiment, the step-constrained control system is configured to control stepping motors.
Inventors:
ULYANOV SERGEI V
PANFILOV SERGEI
TAKAHASHI KAZUKI
PANFILOV SERGEI
TAKAHASHI KAZUKI
Application Number:
PCT/US2003/023671
Publication Date:
March 24, 2005
Filing Date:
July 29, 2003
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
International Classes:
G06F19/00; G05B13/02; G05B13/04; G06N3/00; (IPC1-7): G05B13/02
Download PDF: