Patents by Inventor Kranthi Kumar Kothamachu

Kranthi Kumar Kothamachu 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: 9689490
    Abstract: Methods for machine velocity change gear selection and shift execution are disclosed. A current velocity and a maximum velocity change for a work machine from the current velocity may be determined. The maximum velocity change may be based on a maximum amount of energy expended to change the velocity of the work machine without exceeding an operational limit of a work machine component. A selected machine velocity change target gear may be a highest one of the available gears that will not cause a difference between the current velocity and an end of shift velocity of the work machine that is greater than the maximum velocity change so that the maximum amount of energy will not be exceeded. Factors affecting the maximum velocity change may include the grade, the mass of the work machine, and a transmission oil temperature.
    Type: Grant
    Filed: June 1, 2015
    Date of Patent: June 27, 2017
    Assignee: Caterpillar Inc.
    Inventors: Jaspen Tanner Patenaude, Matthew Donald Meads, Kranthi Kumar Kothamachu, John Bernard Hessling, III
  • Publication number: 20160348785
    Abstract: Methods for machine velocity change gear selection and shift execution are disclosed. A current velocity and a maximum velocity change for a work machine from the current velocity may be determined. The maximum velocity change may be based on a maximum amount of energy expended to change the velocity of the work machine without exceeding an operational limit of a work machine component. A selected machine velocity change target gear may be a highest one of the available gears that will not cause a difference between the current velocity and an end of shift velocity of the work machine that is greater than the maximum velocity change so that the maximum amount of energy will not be exceeded. Factors affecting the maximum velocity change may include the grade, the mass of the work machine, and a transmission oil temperature.
    Type: Application
    Filed: June 1, 2015
    Publication date: December 1, 2016
    Applicant: Caterpillar Inc.
    Inventors: Jaspen Tanner Patenaude, Matthew Donald Meads, Kranthi Kumar Kothamachu, John Bernard Hessling, III
  • Publication number: 20090000779
    Abstract: A cooling system for use with a heat source is disclosed. The cooling system has an oil cooler, a fluid pump driving fluid through the cooling system, a first heat exchanger, and a first bypass line to direct fluid around the first heat exchanger. The cooling system also has a first electrically-controlled valve to selectively direct at least a portion of the fluid to at least one of the first heat exchanger and the first bypass line based on a fluid temperature. The cooling system further has a second heat exchanger, and a second bypass line to direct fluid around the second heat exchanger. The cooling system additionally has a second electrically-controlled valve located upstream of the oil cooler and configured to selectively direct at least a portion of the fluid to at least one of the second heat exchanger and the second bypass line based on an oil temperature.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Christopher Dale Hickam, Timothy Alan Evans, Kris William Johnson, Kranthi Kumar Kothamachu, Larry Michael Slone