Patents by Inventor Christian Poulet

Christian Poulet 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).

  • Adaptive underspeed control
    Patent number: 8175780
    Abstract: A machine (100) includes an engine (102) connected to an implement pump (204) operating an actuator and to a propel pump operating a motor (106). An electronic controller (218) is disposed to receive at least one parameter selected from the group of: a pressure of fluid at the at least one motor (106), a pressure of fluid at the at least one implement actuator, a rate of rotation of the engine (102), a rate of rotation of the at least one motor (106), and a torque output of the engine (102). The electronic controller (218) monitors the at least one parameter for a predetermined period, and determines an operating mode of the machine (100). The electronic controller (218) then adjusts an underspeed setting for the engine (102) based on the operating mode.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: May 8, 2012
    Assignee: Caterpillar Inc.
    Inventors: Terrence A. Quinn, Michael K. Oudyn, Igor M. Strashny, Christian Poulet
  • Adaptive underspeed control
    Publication number: 20100161186
    Abstract: A machine (100) includes an engine (102) connected to an implement pump (204) operating an actuator and to a propel pump operating a motor (106). An electronic controller (218) is disposed to receive at least one parameter selected from the group of: a pressure of fluid at the at least one motor (106), a pressure of fluid at the at least one implement actuator, a rate of rotation of the engine (102), a rate of rotation of the at least one motor (106), and a torque output of the engine (102). The electronic controller (218) monitors the at least one parameter for a predetermined period, and determines an operating mode of the machine (100). The electronic controller (218) then adjusts an underspeed setting for the engine (102) based on the operating mode.
    Type: Application
    Filed: December 22, 2008
    Publication date: June 24, 2010
    Applicant: Caterpillar Inc.
    Inventors: Terrence A. Quinn, Michael K. Oudyn, Igor M. Strashny, Christian Poulet