Patents by Inventor Sunny K. SIU

Sunny K. SIU 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).

  • Torque and thrust control of a propeller
    Patent number: 10336436
    Abstract: A method for controlling a propeller of an aircraft, comprises receiving, with a processor, one or more signals indicative of commanded collective pitch of the propeller; receiving, with the processor, one or more sensed signals indicative of propeller axial speed, propeller rotational speed, and air density; estimating, with the processor, a propeller torque and propeller thrust from one or more of the propeller axial speed, the propeller rotational speed, and the air density; determining, with the processor, information indicative of an error value between a desired torque and a measured torque in the propeller; determining, with the processor, information indicative of a corrected pitch command in response to the determining of the error value; combining, with the processor, the corrected pitch command with the propeller rotational speed into an adjustment solution; providing, with the processor, the propeller with the adjustment solution.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 2, 2019
    Assignee: SIKORSKY AIRCRAFT CORPORATION
    Inventors: Sunny K. Siu, Cody Fegely, Kenneth S. Wittmer, John Knag, Aaron L. Greenfield
  • TORQUE AND THRUST CONTROL OF A PROPELLER
    Publication number: 20170210461
    Abstract: A method for controlling a propeller of an aircraft, comprises receiving, with a processor, one or more signals indicative of commanded collective pitch of the propeller; receiving, with the processor, one or more sensed signals indicative of propeller axial speed, propeller rotational speed, and air density; estimating, with the processor, a propeller torque and propeller thrust from one or more of the propeller axial speed, the propeller rotational speed, and the air density; determining, with the processor, information indicative of an error value between a desired torque and a measured torque in the propeller; determining, with the processor, information indicative of a corrected pitch command in response to the determining of the error value; combining, with the processor, the corrected pitch command with the propeller rotational speed into an adjustment solution; providing, with the processor, the propeller with the adjustment solution.
    Type: Application
    Filed: September 28, 2015
    Publication date: July 27, 2017
    Inventors: Sunny K. SIU, Cody FEGELY, Kenneth S. WITTMER, John KNAG, Aaron L. GREENFIELD