Flight testing of low-order anti-windup compensators for improved handling and PIO suppression

Oliver Brieger, Murray Kerr, Ian Postlethwaite, Jorge Sofrony, Matthew Turner

    Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

    16 Citations (Scopus)


    This paper presents the results of recent flight tests of several anti-windup (AW) compensators on the German Aerospace Centre's (DLR) Advanced Technologies Testing Aircraft (ATTAS). The objectives of the tests were twofold: to demonstrate the potential for rigorously designed low order AW compensators to reduce the pilot-involved-oscillation (PIO) proneness of the aircraft and improve the handling qualities; and to compare a variety of low-order AW compensators to determine the importance of different design parameters. The AW compensators were assessed based on pilot handling qualities ratings (HQRs) and PIO ratings (PIORs). These ratings, and supporting pilot comments and flight data, demonstrate that the AW compensators improved the handling qualities and reduced the PIO proneness of the aircraft, albeit to different degrees. The results also provide a basic understanding of the relationship between design parameters and the response of the piloted aircraft during periods of rate saturation
    Original languageEnglish
    Title of host publication2008 American Control Conference
    Place of PublicationPiscataway, NJ
    ISBN (Print)978-1424420780
    Publication statusPublished - 2008
    EventAmerican Control Conference 2008 -
    Duration: 1 Jan 2008 → …


    ConferenceAmerican Control Conference 2008
    Period1/01/08 → …


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