Patents by Inventor Robert Paul Bertsch

Robert Paul Bertsch 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).

  • Machine control system with directional shift management
    Patent number: 8639418
    Abstract: A method is provided for operating a power system. The method includes receiving an operator request for a propulsion direction change. The method also includes directing power into a power source and reducing a supply of fuel to the power source while directing power into the power source. The method further includes basing a first threshold speed on a speed of the power source produced by directing power into the power source and increasing the supply of fuel to the power source when the speed of the power source falls below the first threshold speed.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: January 28, 2014
    Assignee: Caterpillar Inc.
    Inventors: Robert Paul Bertsch, Bruce Henry Hein, Jeremy Joe Wilson, Timothy Allen Goldammer
  • Machine control system with directional shift management
    Patent number: 7993242
    Abstract: A method is provided for operating a power system. The method includes receiving an operator request for a propulsion direction change. The method also includes selecting a power boost map in response to the propulsion direction change request. The power boost map increases the power rating of a power source of the power system. In addition, the method includes directing power into the power source. The method further includes regulating the power system and accelerating a power source speed according to the power boost map when the power is no longer being directed into the power source.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: August 9, 2011
    Assignee: Caterpillar Inc.
    Inventors: Robert Paul Bertsch, Bruce Henry Hein, Jeremy Joe Wilson, Timothy Allen Goldammer
  • Machine control system with directional shift management
    Publication number: 20090264251
    Abstract: A method is provided for operating a power system. The method includes receiving an operator request for a propulsion direction change. The method also includes selecting a power boost map in response to the propulsion direction change request. The power boost map increases the power rating of a power source of the power system. In addition, the method includes directing power into the power source. The method further includes regulating the power system and accelerating a power source speed according to the power boost map when the power is no longer being directed into the power source.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 22, 2009
    Inventors: Robert Paul Bertsch, Bruce Henry Hein, Jeremy Joe Wilson, Timothy Allen Goldammer
  • Machine control system with directional shift management
    Publication number: 20090264252
    Abstract: A method is provided for operating a power system. The method includes receiving an operator request for a propulsion direction change. The method also includes directing power into a power source and reducing a supply of fuel to the power source while directing power into the power source. The method further includes basing a first threshold speed on a speed of the power source produced by directing power into the power source and increasing the supply of fuel to the power source when the speed of the power source falls below the first threshold speed.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 22, 2009
    Inventors: Robert Paul Bertsch, Bruce Henry Hein, Jeremy Joe Wilson, Timothy Allen Goldammer
  • Electric drivetrain thermal protection system
    Patent number: 7443122
    Abstract: An electric drivetrain for a mobile machine is disclosed. The electric drivetrain has at least one power consuming device, a sensor associated with the at least one power consuming device, and a controller in communication with the power consuming device and the sensor. The sensor is configured to generate a signal indicative of a temperature of the power consuming device. The controller is configured to limit a power consumption level of the at least one power consuming device to an amount corresponding to a value of the signal.
    Type: Grant
    Filed: June 28, 2006
    Date of Patent: October 28, 2008
    Assignee: Caterpillar Inc.
    Inventors: William James Tate, Robert Paul Bertsch, Bruce H. Hein, Thuong Dao Anh Le
  • Electric drivetrain thermal protection system
    Publication number: 20080001564
    Abstract: An electric drivetrain for a mobile machine is disclosed. The electric drivetrain has at least one power consuming device, a sensor associated with the at least one power consuming device, and a controller in communication with the power consuming device and the sensor. The sensor is configured to generate a signal indicative of a temperature of the power consuming device. The controller is configured to limit a power consumption level of the at least one power consuming device to an amount corresponding to a value of the signal.
    Type: Application
    Filed: June 28, 2006
    Publication date: January 3, 2008
    Inventors: William James Tate, Robert Paul Bertsch, Bruce H. Hein, Thuong Dao Anh Le