Residuum analyzing device for detecting e.g. oscillations in behaviors of electrohydraulic rudder positioning system of aircraft, has threshold value providing unit for providing threshold value by associating constant and adaptive portions

摘要

The device (E) has an apparatus (V) for generating residuum (r) based on a reference value (w) and an output variable (y). A comparator unit (KE) provides analytical result (b) by comparing the residuum with a threshold value (s). A constant threshold value portion providing unit (E1) provides a constant threshold value portion (s0), and an adaptive threshold value portion providing unit (E2) provides an adaptive threshold value portion (s1) based on the reference value. A threshold value providing unit (E3) provides the threshold value by associating the constant and the adaptive portions. Independent claims are also included for the following: (1) a method for analyzing residuum for detecting errors in behaviors of a system (2) a computer program product for executing a residuum analyzing method.