Patents Assigned to Caterpillar Inc
  • Publication number: 20210156351
    Abstract: In one aspect, a method for controlling an engine system includes starting the engine system, activating an engine idling reduction mode allowing automatic shutdown and automatic restarting of an engine, disallowing automatic shutdown of the engine within the engine idling reduction mode if a state of charge of a voltage source is below a charge limit for permitting automatic shutdown of the engine, and modifying the charge limit as a function of a number of starts of the engine. Other aspects include a method for disallowing automatic shutdown of an engine if a voltage source has not achieved a fully charged condition, a method of triggering an automatic restarting of an engine, if the engine is automatically shutdown, based on at least two separate indicators of engine temperature, and a method of disallowing automatic shutdown of an engine if ambient temperature is less than a predetermined value.
    Type: Application
    Filed: November 27, 2019
    Publication date: May 27, 2021
    Applicant: Caterpillar Inc.
    Inventors: Keith HARMEYER, Michael E. KENNING, Navya X. KOKA, Matthew E. LUEDDECKE, Jon B. BORGESON
  • Publication number: 20210156285
    Abstract: A rocker arm assembly having a rocker arm with a first end defining a first cavity, a second end opposite the first end, a bore positioned between the first end and the second end for pivotally mounting the rocker arm within an engine, and an oil passage extending from the bore to the cavity. A hydraulic lash adjuster is positioned within the cavity and has an oil inlet in fluid communication with the oil passage. The rocker arm has a vent passage configured to place the oil inlet in fluid communication with an area exterior to the rocker arm.
    Type: Application
    Filed: November 22, 2019
    Publication date: May 27, 2021
    Applicant: Caterpillar Inc.
    Inventors: Ashwin A. Hattiangadi, Charles F. Coffey
  • Patent number: 11018511
    Abstract: A system for balancing battery cell charge in a battery array for an electrified machine is provided. The battery array includes a plurality of individual battery cells, or groups of battery cells. A plurality of cell monitors are in communication with the individual battery cells, or groups of battery cells, with the plurality of cell monitors being powered by the individual battery cells, or groups of battery cells. A battery controller of the system receives information about the individual battery cells, or groups of battery cells, from the plurality of cell monitors. The information traverses the plurality of cell monitors in a first pattern to the battery controller and, after a predetermined period of time or occurrence of a predetermined event, the information traverses the plurality of cell monitors in a second pattern that is different than the first pattern to the battery controller.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: May 25, 2021
    Assignee: Caterpillar Inc.
    Inventors: Matthew Lee Boggs, Jason Lee Miller, Justin Dale Middleton
  • Patent number: 11015502
    Abstract: A compression ignition internal combustion engine system includes an engine and an exhaust system with an upstream exhaust conduit, and an oxidation catalyst device (DOC). Systems and methods of desulfating the oxidation catalyst by the injection of a lightoff fluid to promote ignition of uncombusted fuel in the exhaust stream are disclosed.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: May 25, 2021
    Assignee: Caterpillar Inc.
    Inventors: Joshua Lynn Ratts, Wilce Damion Williams
  • Patent number: 11015323
    Abstract: A system for tracking usage of a work implement includes a movement characteristic sensor, a wireless transmitter, and a controller. The controller is configured to determine whether movement of the work implement exceeds a movement characteristic threshold based upon the movement characteristic signals, increase a work implement usage time by a cycle time interval if the movement of the work implement exceeds the movement characteristic threshold, and transmit with a wireless transmitter on the work implement the work implement usage time and the unique identification number to a system remote from the work implement. Further, the controller is configured to sequentially operate in a standard power mode and in a low power mode, and while in the low power mode, power to at least one of the movement characteristic sensor and the wireless transmitter is terminated.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: May 25, 2021
    Assignee: Caterpillar Inc.
    Inventors: Arjun Veneshetty, Joshua D. Reed
  • Patent number: 11019065
    Abstract: A method includes generating a core record identification (ID) associated with an electronic document. A processor sets one or more access rules indicative of whether the electronic document may be edited after saving the document. The one or more access rules are associated with at least one administrator ID of an administrative user. The method further includes determining, based on a core record ID, whether or not to obtain the electronic consent of a consenting party. The processor evaluates whether the first consenting party ID must provide an electronic consent to the electronic document based on one or more organization consent rules indicative of i) whether consent is required for each access of the computing resource, and ii) whether per-user consent or organizational consent is required. The processor provides access to the computing resource based at least in part on the first consenting party and the core record ID.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: May 25, 2021
    Assignee: Caterpillar Inc.
    Inventor: Jeffrey A. Jacobs
  • Patent number: 11014292
    Abstract: A hybrid method of additive manufacturing is provided. The method includes providing a powder material and fusing, by a first heat source, a portion of the powder material to form a three-dimensional structure. The three-dimensional structure can define a fill region at least partially filled with the powder material. The method further includes fusing, by a second heat source, the powder material in the fill region. Fusing the powder material in the fill region can solidify the powder material in the fill region and fuse the powder material to the three-dimensional structure for forming a solid object.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: May 25, 2021
    Assignee: Caterpillar Inc.
    Inventor: Thierry Marchione
  • Publication number: 20210148323
    Abstract: A controller for a dedicated exhaust gas recirculation (D-EGR) engine is disclosed. The controller may receive a plurality of cylinder pressure signals, each of which is associated with a respective cylinder in a plurality of cylinders of the D-EGR engine. The plurality of cylinders includes at least one donor cylinder and a set of non-donor cylinders. The controller may receive a crankshaft angle signal associated with a crankshaft of the D-EGR engine. The controller may selectively adjust ignition timing of a cylinder, of the plurality of cylinders, based on the crankshaft angle signal and a cylinder pressure signal, of the plurality of cylinder pressure signals, associated with the cylinder; or a fuel rate of the at least one donor cylinder based on the crankshaft angle signal and a set of cylinder pressure signals, of the plurality of cylinder pressure signals, associated with the set of non-donor cylinders.
    Type: Application
    Filed: November 12, 2020
    Publication date: May 20, 2021
    Applicant: Caterpillar Inc.
    Inventors: David Todd MONTGOMERY, Greg HAMPSON
  • Publication number: 20210148325
    Abstract: A device that includes a window, a catalyzed layer, and a laser source is disclosed. The window may include a first surface and a second surface. The catalyzed layer may be disposed on the first surface of the window. The catalyzed layer may include a compound having a threshold transmittance, and be configured to cause a reaction with soot in one or more of a combustion chamber or a pre-combustion chamber of a combustion engine at an activation temperature to reduce accumulation of soot on the window. The laser source may be disposed relative to the second surface of the window, and configured to emit a laser beam through the window and the catalyzed layer. The laser beam may be configured to cause ignition of an intake charge of one or more of the combustion chamber or the pre-combustion chamber.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Applicant: Caterpillar Inc.
    Inventors: Kenth I. Svensson, Ronald G Silver, Paul SK Wang
  • Publication number: 20210149369
    Abstract: A system for validating a worksite includes determining extents of a worksite at which a job is to be performed. A graphical representation of the worksite may be presented to a user via a graphical user interface on a user device. The graphical user interface may also include an indication of a current location of the user or the user device. Sensor data, including data indicating a position of the user or the user device, can be used to determine whether the worksite is valid. The worksite plan may include information about additional conditions for validating the worksite and additional sensor data can be used to further validate the worksite. Further aspects may include controlling machines at the worksite when the worksite is validated.
    Type: Application
    Filed: November 15, 2019
    Publication date: May 20, 2021
    Applicant: Caterpillar Inc.
    Inventor: Gautham Subramanian
  • Publication number: 20210148471
    Abstract: A plug valve is disclosed having one or more components that are coated to reduce wear on the components. A plug of the valve may include a bore therethrough defined by an inner surface of the plug. The inner surface of the plug may include a nitride layer, such as a carbonitride layer. An outer surface of the plug may include both a nitride layer, in addition to a thermal spray coated layer, such as WC. The nitride layer may be formed by a ferritic nitrocarburizing process and the thermal spray coating may be formed by a high velocity air fuel (HVAF) or similar process. Inserts of the plug valve may also be coated by similar processes. An outer surface of the inserts may have a nitride layer and an inner surface of the inserts may have a nitride layer and a thermal spray coating.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Applicant: Caterpillar Inc.
    Inventors: Vickram Murugesan, Robert Eugene Riedel, JR.
  • Publication number: 20210148789
    Abstract: A device that includes a conduit, a first window, a second window, a first catalyzed layer, a second catalyzed layer, an optical source, and an optical detector is disclosed. The conduit may be configured to receive an exhaust gas. The first catalyzed layer may be disposed on the first window and the second catalyzed layer may be disposed on the second window. The first catalyzed layer and the second catalyzed layer may be configured to cause a reaction with soot in the exhaust gas at an activation temperature to reduce accumulation of the soot on the first window and the second window. The optical source may be configured to emit a beam of light into the conduit through the first window. The optical detector may be configured to receive at least a portion of the beam of light through the second window.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Applicant: Caterpillar Inc.
    Inventors: Kenth I. Svensson, Ronald G Silver
  • Publication number: 20210148094
    Abstract: A retainer sleeve includes an at least partially annular body defining an axis of rotation, a radial direction, and a circumferential direction. The body may also have a radially inner annular surface defining a radially inner aperture, and a first anti-rotation feature extending radially inwardly from the radially inner annular surface including a sloping ledge having a locking surface, and an outer peripheral surface defining a notch that is at least partially aligned with the first anti-rotation feature or an array of a plurality of external ribs extending outwardly radially from the outer peripheral surface.
    Type: Application
    Filed: November 14, 2019
    Publication date: May 20, 2021
    Applicant: Caterpillar Inc.
    Inventors: Douglas C. Serrurier, Eric T. Sinn, Jason Grant Jura
  • Publication number: 20210147196
    Abstract: A pipelayer includes a frame, a plurality of ground engaging members movably supporting the frame, a prime mover, and a boom assembly and a counterbalance assembly supported on the frame. The boom assembly includes a boom. The counterbalance assembly including a counterweight, the counterweight being movably supported on the frame to counterbalance the boom assembly. The counterweight includes a battery box including at least one battery. A control strategy is also disclosed.
    Type: Application
    Filed: November 19, 2019
    Publication date: May 20, 2021
    Applicant: Caterpillar Inc.
    Inventors: Codey R. Seaman, David D. Tallon
  • Patent number: 11010889
    Abstract: A device for measuring wear is disclosed. The device may receive images associated with a component, and may receive a three-dimensional (3D) model of the component. The device may generate an image point cloud based on the images, and may generate a model point cloud based on the 3D model of the component. The device may perform a first alignment of the image point cloud and the model point cloud to generate first-aligned point clouds, and may perform a second alignment of the first-aligned point clouds to generate second-aligned point clouds. The device may generate 3D mask regions based on the second-aligned point clouds, and may project the 3D mask regions on the images. The device may process the 3D mask regions, projected on the images, to determine reference points in the images, and may determine an amount of wear associated with the component based on the reference points.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: May 18, 2021
    Assignee: Caterpillar Inc.
    Inventors: Nolan Finch, Lingyu Ma
  • Patent number: 11008993
    Abstract: A power generation system is disclosed. The power generation system may include a first engine and a second engine. The power generation system may include an alternating current (AC) generator coupled to the first engine and a solid state power supply connected to the AC generator via a first circuit. The power generation system may include a first energy storage device associated with the first engine, connected to the solid state power supply via a second circuit, and a first engine control module (ECM) associated with the first engine, connected to the solid state power supply via the second circuit. The power generation system may include a second energy storage device associated with the second engine, connected to the solid state power supply via the second circuit, and a second ECM associated with the second engine, connected to the solid state power supply via the second circuit.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: May 18, 2021
    Assignee: Caterpillar Inc.
    Inventors: Jay Roplekar, Chris Meischner, Jeffery Fischer, Thomas Smith
  • Patent number: 11009522
    Abstract: A method for calibrating an acceleration sensor coupled to a machine may comprise: at a first position of a linkage of the machine, obtaining a first acceleration measurement from the acceleration sensor and obtaining from an input a first force value indicative of a first force on the linkage; at a second position of the linkage of the machine, obtaining a second acceleration measurement from the acceleration sensor and obtaining from the input a second force value indicative of a second force on the linkage; determining a rotational offset calibration value of the acceleration sensor as a function of the first acceleration measurement, the first force value, the second acceleration measurement, and the second force value; and using the rotational offset calibration value to calibrate the acceleration sensor.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: May 18, 2021
    Assignee: Caterpillar Inc.
    Inventor: Shaun D. Currier
  • Patent number: 11008901
    Abstract: A rocker arm assembly having a rocker arm with a first end defining a first cavity, a second end opposite the first end, a bore positioned between the first end and the second end for pivotally mounting the rocker arm within an engine, and an oil passage extending from the bore to the cavity. A hydraulic lash adjuster is positioned within the cavity and has an oil inlet in fluid communication with the oil passage. The rocker arm has a vent passage configured to place the oil inlet in fluid communication with an area exterior to the rocker arm.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: May 18, 2021
    Assignee: Caterpillar Inc.
    Inventors: Ashwin A. Hattiangadi, Charles F. Coffey
  • Patent number: D919640
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: May 18, 2021
    Assignee: Caterpillar Inc.
    Inventors: Mitchell Miklosi, Kristen Ann Gerstner, Sarah E. Schonert, Joshua S. Whitmore
  • Patent number: D920401
    Type: Grant
    Filed: November 15, 2018
    Date of Patent: May 25, 2021
    Assignee: Caterpillar Inc.
    Inventors: Thomas M. Congdon, David B. Parzynski, Jr., Nathan Bjerke