Patents by Inventor Shawn Michael Nelson

Shawn Michael Nelson 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 of large electromechanical actuators
    Patent number: 10447180
    Abstract: A method of operating an electromechanical actuator (EMA) system includes determining a command time remaining for an actuator to attain a commanded position and determining a stop time required to stop movement of the actuator. The command time is compared to the stop time, and an electric motor driving the actuator is decelerated if the stop time is equal to or greater than the command time. An electromechanical actuator system includes an actuator and an electric motor operably connected to the actuator, the electric motor configured to drive movement of the actuator. A controller is operably connected to the electric motor to control operation of the actuator. The controller is configured to determine a command time remaining, determine a stop time, compare the command time to the stop time, and decelerate the electric motor if the stop time is equal to or greater than the command time.
    Type: Grant
    Filed: January 12, 2016
    Date of Patent: October 15, 2019
    Assignee: HAMILTON SUNDSTRAND SPACE SYSTEMS INTERNATIONAL, INC.
    Inventors: Scott C. Bonnett, Shawn Michael Nelson
  • CONTROL OF LARGE ELECTROMECHANICAL ACTUATORS
    Publication number: 20170201195
    Abstract: A method of operating an electromechanical actuator (EMA) system includes determining a command time remaining for an actuator to attain a commanded position and determining a stop time required to stop movement of the actuator. The command time is compared to the stop time, and an electric motor driving the actuator is decelerated if the stop time is equal to or greater than the command time. An electromechanical actuator system includes an actuator and an electric motor operably connected to the actuator, the electric motor configured to drive movement of the actuator. A controller is operably connected to the electric motor to control operation of the actuator. The controller is configured to determine a command time remaining, determine a stop time, compare the command time to the stop time, and decelerate the electric motor if the stop time is equal to or greater than the command time.
    Type: Application
    Filed: January 12, 2016
    Publication date: July 13, 2017
    Inventors: Scott C. Bonnett, Shawn Michael Nelson