Patents by Inventor Jonathan B. Dahman

Jonathan B. Dahman 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).

  • Control system actuation fault monitoring
    Patent number: 7822493
    Abstract: Methods and apparatus for monitoring and detecting failures in the actuation of a control system, such as a flight control system for an aircraft, include defining a nominal model of the control system in terms of the state variables of the control system, defining a model of an asymmetric “actuation monitoring envelope” that dynamically bounds a range that measured state variables of the system are allowed to take during operation of the system as a function of the nominal system state model, monitoring a signal corresponding to a state variable of the system during operation thereof, and detecting a failure in the actuation of the control system when the monitored signal exceeds the bounds of the monitoring envelope.
    Type: Grant
    Filed: January 3, 2008
    Date of Patent: October 26, 2010
    Assignee: The Boeing Company
    Inventors: David C. Mossman, Russell J. Enns, Jonathan B. Dahman
  • CONTROL SYSTEM ACTUATION FAULT MONITORING
    Publication number: 20090177292
    Abstract: Methods and apparatus for monitoring and detecting failures in the actuation of a control system, such as a flight control system for an aircraft, include defining a nominal model of the control system in terms of the state variables of the control system, defining a model of an asymmetric “actuation monitoring envelope” that dynamically bounds a range that measured state variables of the system are allowed to take during operation of the system as a function of the nominal system state model, monitoring a signal corresponding to a state variable of the system during operation thereof, and detecting a failure in the actuation of the control system when the monitored signal exceeds the bounds of the monitoring envelope.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 9, 2009
    Inventors: David C. Mossman, Russell J. Enns, Jonathan B. Dahman