Inventors:
Christopher Noll - Glastonbury CT, US
Steven A. Avritch - Bristol CT, US
Assignee:
Hamilton Sundstrand Corporation - Windsor Locks CT
International Classification:
G05B 23/02, G06F 11/22, G06F 19/00, G06F 17/40
US Classification:
702 58, 738658, 32475001, 702108, 702182, 702183, 708105, 708200
Abstract:
A method () for fault detection in a system under control includes monitoring a command value and a wraparound signal () by a fault detection module (); determining a standard deviation of the command value () by the fault detection module; determining a standard deviation of the wraparound signal () by the fault detection module; determining a ratio of the standard deviation of the command value to the standard deviation of the wraparound signal () by the fault detection module; and determining the presence or absence of a fault in the system under control by the fault detection module based on the ratio () by the fault detection module. A fault detection module () and a computer program product comprising a computer readable storage medium containing computer code that, when executed by a computer, implements a method () for fault detection are also provided.