Patents by Inventor Patrick Opdendosch

Patrick Opdendosch 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).

  • Hydraulic system and method for controlling same
    Patent number: 10837375
    Abstract: A hydraulic system includes an engine; at least one hydraulic pump operatively coupled to the engine for transfer of mechanical power therebetween; and a controller operatively coupled to the engine and the at least one hydraulic pump. The controller is configured to determine a lug speed error as a difference between a target lug speed value and a speed of the engine, set at least one closed-loop gain to a non-zero value when the speed of the engine is less than the target lug speed value, and generate a pump control signal by scaling the lug speed error by the at least one closed-loop gain.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: November 17, 2020
    Assignee: Caterpillar Forest Products Inc.
    Inventors: Patrick Opdendosch, Joseph R. Storey
  • HYDRAULIC SYSTEM AND METHOD FOR CONTROLLING SAME
    Publication number: 20180347480
    Abstract: A hydraulic system includes an engine; at least one hydraulic pump operatively coupled to the engine for transfer of mechanical power therebetween; and a controller operatively coupled to the engine and the at least one hydraulic pump. The controller is configured to determine a lug speed error as a difference between a target lug speed value and a speed of the engine, set at least one closed-loop gain to a non-zero value when the speed of the engine is less than the target lug speed value, and generate a pump control signal by scaling the lug speed error by the at least one closed-loop gain.
    Type: Application
    Filed: August 6, 2018
    Publication date: December 6, 2018
    Applicant: Caterpillar Forest Products Inc.
    Inventors: Patrick Opdendosch, Joseph R. Storey