Patents by Inventor Matthew D. Meads

Matthew D. Meads 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: 9555784
    Abstract: A braking system for a machine includes a first valve assembly having a first electronically actuated proportional valve, and a second valve assembly having a second electronically actuated proportional valve. The braking system includes a first pressure sensor and a second pressure sensor disposed downstream of the first and second valve assemblies, respectively. The first and second pressure sensors are configured to determine a first pressure and a second pressure of a braking fluid from the first and second valve assembly. The braking system also includes a controller configured to receive a signal indicative of the first pressure and the second pressure of the braking fluid and compare the first pressure and the second pressure. The controller is configured to selectively actuate at least one of the first electronically actuated proportional valve and the second electronically actuated proportional valve to substantially equalize the first pressure and the second pressure.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: January 31, 2017
    Assignee: Caterpillar Inc.
    Inventors: Bryan D. Van Dyke, Ethan M. Tevis, Dwanz M. Mwasi, Michael R. Kunde, Aaron P. Hofner, Steven E. Johnson, Chad L. Kassube, Matthew D. Meads
  • Publication number: 20160167634
    Abstract: A braking system for a machine includes a first valve assembly having a first electronically actuated proportional valve, and a second valve assembly having a second electronically actuated proportional valve. The braking system includes a first pressure sensor and a second pressure sensor disposed downstream of the first and second valve assemblies, respectively. The first and second pressure sensors are configured to determine a first pressure and a second pressure of a braking fluid from the first and second valve assembly. The braking system also includes a controller configured to receive a signal indicative of the first pressure and the second pressure of the braking fluid and compare the first pressure and the second pressure. The controller is configured to selectively actuate at least one of the first electronically actuated proportional valve and the second electronically actuated proportional valve to substantially equalize the first pressure and the second pressure.
    Type: Application
    Filed: December 12, 2014
    Publication date: June 16, 2016
    Applicant: Caterpillar Inc.
    Inventors: Bryan D. Van Dyke, Ethan M. Tevis, Dwanz M. Mwasi, Michael R. Kunde, Aaron P. Hofner, Steven E. Johnson, Chad L. Kassube, Matthew D. Meads
  • Patent number: 8973536
    Abstract: A method for controlling the power of an engine is provided. The method includes determining a baseline fuel amount, determining an engine cooling fan operating condition based on an engine operating parameter, determining an engine cooling fan command based on the engine cooling fan operating condition, determining an engine cooling fan power level based on the engine speed and the engine cooling fan command, determining an additional fuel amount based on the engine cooling fan power level, adding the additional fuel amount to the baseline fuel amount to create a compensated fuel amount, and providing the compensated fuel amount to the engine. An engine system, including an engine controller coupled to an engine, a fuel system and a hydraulic pump, is also provided. The engine controller includes a processor adapted to perform a set of instructions that controls the power of the engine.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 10, 2015
    Assignee: Caterpillar Inc.
    Inventors: Brandon L. Hagman, Matthew D. Meads
  • Publication number: 20140209047
    Abstract: A method for controlling the power of an engine is provided. The method includes determining a baseline fuel amount, determining an engine cooling fan operating condition based on an engine operating parameter, determining an engine cooling fan command based on the engine cooling fan operating condition, determining an engine cooling fan power level based on the engine speed and the engine cooling fan command, determining an additional fuel amount based on the engine cooling fan power level, adding the additional fuel amount to the baseline fuel amount to create a compensated fuel amount, and providing the compensated fuel amount to the engine. An engine system, including an engine controller coupled to an engine, a fuel system and a hydraulic pump, is also provided. The engine controller includes a processor adapted to perform a set of instructions that controls the power of the engine.
    Type: Application
    Filed: January 25, 2013
    Publication date: July 31, 2014
    Applicant: CATERPILLAR, INC.
    Inventors: Brandon L. Hagman, Matthew D. Meads
  • Patent number: 8478470
    Abstract: A drivetrain system for a mobile machine is disclosed. The drivetrain system may have an engine, a generator driven by the engine to generate electric power, and a traction motor driven by the electric power from the generator. The drivetrain system may also have a controller in communication with the engine, the generator, and the traction motor. The controller may be configured to determine a change in loading on the traction motor, and determine a change in fueling of the engine that will be required to accommodate the change in loading on the traction motor. The controller may also be configured to selectively rate-limit the change in fueling, and implement the rate-limited change in fueling prior to transmission of the change in loading on the traction motor to the engine.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 2, 2013
    Assignee: Caterpillar Inc.
    Inventors: Matthew D. Meads, Keith A. Leisinger, Rajeswari Addepalli