Patents by Inventor Kevin Joseph Carew

Kevin Joseph Carew 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).

  • Closed-loop motion-control system using error to modify gain
    Patent number: 7933701
    Abstract: A method of operating a motion-control system is provided. The motion-control system may include an actuator and a moveable component driven by the actuator. The method may include providing input that indicates a target value of a parameter of the motion of at least one of the actuator and the moveable component with an operator-input device that is mechanically decoupled from the moveable component. The method may also include controlling the operation of the actuator at least in part with a control signal, including generating the control signal at least in part by determining a control gain based at least in part on a control error between the target value of the parameter and an actual value of the parameter. Generating the control signal may also include multiplying the control gain by the control error or a value derived from the control error.
    Type: Grant
    Filed: December 28, 2006
    Date of Patent: April 26, 2011
    Assignee: Caterpillar Inc.
    Inventors: Robert Jay Davis, Michael Anthony Spielman, Kevin Joseph Carew
  • Closed-loop motion-control system using error to modify gain
    Publication number: 20080161999
    Abstract: A method of operating a motion-control system is provided. The motion-control system may include an actuator and a moveable component driven by the actuator. The method may include providing input that indicates a target value of a parameter of the motion of at least one of the actuator and the moveable component with an operator-input device that is mechanically decoupled from the moveable component. The method may also include controlling the operation of the actuator at least in part with a control signal, including generating the control signal at least in part by determining a control gain based at least in part on a control error between the target value of the parameter and an actual value of the parameter. Generating the control signal may also include multiplying the control gain by the control error or a value derived from the control error.
    Type: Application
    Filed: December 28, 2006
    Publication date: July 3, 2008
    Inventors: Robert Jay Davis, Michael Anthony Spielman, Kevin Joseph Carew