Patents by Inventor Ry Whittington

Ry Whittington 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).

  • Publication number: 20150298666
    Abstract: Wheel slippage of a machine may be controlled using brake control and engine torque control. In some examples, the present disclosure describes a method of controlling a wheel. Example methods may include sensing a rotational speed of the wheel, and sensing an acceleration of the machine. The method may also include estimating a target speed of the wheel based at least in part on the rotational speed of the wheel and the acceleration of the machine. The method may continue with calculating a speed error, the speed error being a difference between the rotational speed and the target speed. The method may also include controlling a brake of the wheel based on the speed error and/or a torque of an engine of the machine based on the speed error.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: Caterpillar Inc.
    Inventors: Yun Liu, Gerry McCann, Stefan Wulf, Ry Whittington