Patents by Inventor Franciscus van der Linden

Franciscus van der Linden has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Open and closed control of actuators, which drive aerodynamic control surfaces of an aircraft
    Patent number: 11396363
    Abstract: The invention relates to a device and to a method for the open and closed control of n actuators An, n=1, 2, . . . , N, where N?1, which drive aerodynamic control surfaces of an aircraft.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 26, 2022
    Assignee: Deutsche Zentrum für Luft- und Raumfahrt e.V.
    Inventor: Franciscus van der Linden
  • Reducing gust loads acting on an aircraft
    Patent number: 11130562
    Abstract: Device and method for reducing gust loads acting on control surfaces of an aircraft. Each control surface is movable by at least one actuator, and a flight control system provides reference variables Xsoll and {dot over (X)}soll to actuate the actuator of each control surface. Xsoll indicates a target position, force, or moment of the actuator, and {dot over (X)}soll indicates a time derivative of Xsoll. The device includes: a first sensor system identifying a position, force, or moment, indicated by variable Fext,Boe, as produced by gusts acting from outside on the control surface; and a regulator regulating the actuator of the control surface based on Fext,Boe, Xsoll and {dot over (X)}soll, and XA and {dot over (X)}A, resulting from the actuator acting on the control surface and detected by a second sensor system, wherein regulation of the actuator by the regulator enables compensation of the position, force, or moment produced by gusts acting on the control surface.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: September 28, 2021
    Assignee: Deutsches Zentrum für Luft- und Raumfahrt e.V.
    Inventor: Franciscus van der Linden
  • REDUCING GUST LOADS ACTING ON AN AIRCRAFT
    Publication number: 20190256195
    Abstract: The invention relates to a device and a method for reducing gust loads acting on an aircraft. The aircraft has at least one aerodynamic control surface which can be moved by at least one actuator, and a flight control system provides reference variables Xsoll and/or {dot over (X)}soll to actuate the actuator. Xsoll indicates a target position or a target force or a target moment and {dot over (X)}soll indicates a change over time of Xsoll. The device includes: a sensor system, which determines forces Fext,Boe acting from outside on the control surface and produced by gusts; and a regulator for regulating the actuator on the basis of: Fext,Boe, the reference variables Xsoll and/or {dot over (X)}soll and control variables X and/or {dot over (X)} generated by the actuator and detected by a sensor system, wherein the regulator has a regulation behavior with which the forces Fext,Boe produced by gusts are compensated.
    Type: Application
    Filed: September 15, 2017
    Publication date: August 22, 2019
    Applicant: Deutsches Zentrum für Luft- und Raumfahrt e.V.
    Inventor: Franciscus van der LINDEN
  • OPEN AND CLOSED CONTROL OF ACTUATORS, WHICH DRIVE AERODYNAMIC CONTROL SURFACES OF AN AIRCRAFT
    Publication number: 20190144101
    Abstract: The invention relates to a device and to a method for the open and closed control of n actuators An, n=1, 2, . . . , N, where N?1, which drive aerodynamic control surfaces of an aircraft.
    Type: Application
    Filed: September 15, 2017
    Publication date: May 16, 2019
    Inventor: Franciscus van der Linden