Patents by Inventor Eric John Williams

Eric John Williams 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).

  • Patent number: 11965313
    Abstract: A method for determining parallel lift feedforward control of a bucket of a work vehicle is provided. The method includes calculating a current stroke length of a bucket cylinder at a current moment based on a current bell crank plate angle and a current boom angle. The method includes predicting a future boom angle after a certain number of steps. The method further includes calculating a required bell crank plate angle from a learned cutting edge angle and the future boom angle. The method even further includes calculating a future stroke length of the bucket cylinder after the certain number of steps. The method yet further includes calculating an average speed command for bucket control based on the current stroke length and the future stroke length of the bucket cylinder. The method still further includes calculating a bucket cylinder control command based on the average speed command for bucket control.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: April 23, 2024
    Assignee: CNH Industrial America LLC
    Inventors: Eric John Williams, Caleb Peterson, Duqiang Wu, Joshua D. Zimmerman
  • Patent number: 11821169
    Abstract: A system for controlling implement orientation of a work vehicle includes a computing system configured to control an operation of a lift actuator of the vehicle such that an implement of the vehicle is moved from a first vertical position relative to a second vertical position. Furthermore, the computing system is configured to monitor the angle of the implement as the implement is moved from the first vertical position to the second vertical position. Additionally, the computing system is configured to determine an actual error value between the monitored angle and a selected angle of the implement. Moreover, the computing system is configured to determine a modified error value that is different than the actual error value and control an operation of a tilt actuator of the vehicle to adjust the angle of the implement relative to the driving surface based on the modified error value.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: November 21, 2023
    Assignee: CNH Industrial America LLC
    Inventors: Caleb Peterson, Eric John Williams, Mitchell M. Johnson, Duqiang Wu
  • Publication number: 20220243425
    Abstract: A system for controlling implement orientation of a work vehicle includes a computing system configured to control an operation of a lift actuator of the vehicle such that an implement of the vehicle is moved from a first vertical position relative to a second vertical position. Furthermore, the computing system is configured to monitor the angle of the implement as the implement is moved from the first vertical position to the second vertical position. Additionally, the computing system is configured to determine an actual error value between the monitored angle and a selected angle of the implement. Moreover, the computing system is configured to determine a modified error value that is different than the actual error value and control an operation of a tilt actuator of the vehicle to adjust the angle of the implement relative to the driving surface based on the modified error value.
    Type: Application
    Filed: January 29, 2021
    Publication date: August 4, 2022
    Inventors: Caleb Peterson, Eric John Williams, Mitchell M. Johnson, Duqiang Wu
  • Publication number: 20220228349
    Abstract: A method for determining parallel lift feedforward control of a bucket of a work vehicle is provided. The method includes calculating a current stroke length of a bucket cylinder at a current moment based on a current bell crank plate angle and a current boom angle. The method includes predicting a future boom angle after a certain number of steps. The method further includes calculating a required bell crank plate angle from a learned cutting edge angle and the future boom angle. The method even further includes calculating a future stroke length of the bucket cylinder after the certain number of steps. The method yet further includes calculating an average speed command for bucket control based on the current stroke length and the future stroke length of the bucket cylinder. The method still further includes calculating a bucket cylinder control command based on the average speed command for bucket control.
    Type: Application
    Filed: January 20, 2021
    Publication date: July 21, 2022
    Inventors: Eric John Williams, Caleb Peterson, Duqiang Wu, Joshua D. Zimmerman