Showing papers by "Paul M. Frank published in 1985"
TL;DR: In this paper, the feasibility of an instrument fault detection (IFD) scheme is demonstrated on a laboratory servomechanism which balances an inverted pendulum, and three instruments, the pendulum angle transducer, the base motion velocity sensor and the base position sensor provide feedback signals to stabilize the inherently unstable plant in a normal control scheme.
15 citations
TL;DR: In this article, the sensitivity of PFM control systems with respect to changes in the plant and controller parameters is investigated using a linearized approach for the PFM controller, as proposed by Frank and Dillmann.
Abstract: The paper discusses the sensitivity of pulse-frequency modulated (PFM) control systems with respect to changes in the plant and controller parameters. The investigations of the sensitivity behaviour of non-linear PFM control systems are carried out using a linearized approach for the PFM controller, as proposed by Frank and Dillmann. The goal of this paper is to study the effectiveness of this method as applied to the investigation of an unstable plant. The sensitivity functions of the PFM system and the corresponding continuous equivalent systems are evaluated by considering parameter changes in the actual plant. The limitations of this method are pointed out.
2 citations