Patents by Inventor John Andrew Yeoman

John Andrew Yeoman 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).

  • Front-wheel drive steering compensation method and system
    Patent number: 7712559
    Abstract: A method of controlling the speed of a right front wheel and a left front wheel on a work machine includes receiving a speed command based at least partially on an operator input and monitoring at least one wheel steering angle of at least one front wheel. A first front wheel speed command may be determined based at least partially on the at least one wheel steering angle. In addition, a second front wheel speed command may be determined based at least partially on the at least one wheel steering angle. The first front wheel speed command and the second front wheel speed command may be output to independently control the speed of the right and the left front wheels.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: May 11, 2010
    Assignee: Caterpillar Inc.
    Inventors: John Andrew Yeoman, Michael Dan Strnad, Kevin Lynn Claytor, Stephen Victor Lunzman
  • Control for an all-wheel-drive vehicle
    Patent number: 7549498
    Abstract: A method is provided for controlling an all-wheel-drive vehicle. The method includes providing an aggression signal and determining a desired speed ratio based on the aggression signal. An output speed signal corresponding to the determined desired speed ratio is generated.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: June 23, 2009
    Assignee: Caterpillar Inc.
    Inventors: Stephen Victor Lunzman, John Andrew Yeoman, Sean Wesley Johnson, Bryan L. Fredrickson
  • Systems and methods for the mitigation of hop
    Patent number: 7364003
    Abstract: A system for mitigating hop in a propelled machine is provided. A controller is operable to receive an aggressiveness command based on an operator input. A sensor is operable to measure a parameter indicative of hop and output a hop signal indicative of a magnitude of machine hop, based on the measurement. A manager is operable to reduce an aggressiveness indicated by the aggressiveness command in proportion to the indicated magnitude of machine hop.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: April 29, 2008
    Assignee: Caterpillar Inc.
    Inventors: Bradford Jay Holt, John Andrew Yeoman, Michael Dan Strnad, Stephen Victor Lunzman
  • Front-wheel drive steering compensation method and system
    Patent number: 7325636
    Abstract: A method of controlling the speed of a right front wheel and a left front wheel on a work machine includes receiving a speed command based at least partially on an operator input and monitoring at least one wheel steering angle of at least one front wheel. A first front wheel speed command may be determined based at least partially on the at least one wheel steering angle. In addition, a second front wheel speed command may be determined based at least partially on the at least one wheel steering angle. The first front wheel speed command and the second front wheel speed command may be output to independently control the speed of the right and the left front wheels.
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: February 5, 2008
    Assignee: Caterpillar Inc.
    Inventors: John Andrew Yeoman, Michael Dan Strnad, Kevin Lynn Claytor, Stephen Victor Lunzman