Patents Assigned to Caterpillar
  • Publication number: 20250108785
    Abstract: A brake system of a machine may receive stability data associated with multiple wheels of the machine. The brake system may initiate, based on the stability data, an automatic electrohydraulic braking operation associated with a brake that is operatively connected to a wheel, of the multiple wheels. The brake may be movable from a de-applied position to an applied position to apply a brake force to the wheel. The brake system may prevent, based on initiating the automatic electrohydraulic braking operation, an operator input from controlling a brake pressure that is supplied to the brake via a valve configuration of the brake system. The brake system may decrease, based on an electrohydraulic input, the brake pressure that is supplied to the brake, via the valve configuration, to move the brake from the de-applied position to the applied position to apply the brake force to the wheel.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 3, 2025
    Applicant: Caterpillar Inc.
    Inventors: Edward W. MATE, Steven E. JOHNSON
  • Publication number: 20250109574
    Abstract: A work machine, such as an excavator or a backhoe, has a linkage of articulating arms for maneuvering a changeable work tool. Position and motion sensors and force sensors within the linkage provide data for a controller to determine a location of the work tool and down force applied from the linkage onto the work tool during a job. Before performing a grading operation, an operator may request level control for the work tool at a benchmark orientation and down-force control at a target down force. After a controller applies the target down force with the work tool at the benchmark orientation, an operator may traverse the work tool along a path radial to the work machine. While maintaining the benchmark orientation for the work tool, the controller may adjust one or more forces on the linkage to also maintain the target down force during the traversal of the work tool, leading to simpler functionality for the operator and higher quality work product.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 3, 2025
    Applicant: Caterpillar Inc.
    Inventor: Mark William Thompson
  • Publication number: 20250110182
    Abstract: An electric vehicle may include a battery module including a battery cell, and one or more controllers. The controller(s) may be configured to detect a charging of the battery cell. The controller(s) may be configured to obtain, based on detection of the charging, charging data associated with the charging. The charging data may indicate at least one of a voltage, a current, or a temperature associated with the battery cell during the charging. The controller(s) may be configured to transmit the charging data to a device remote from the electric vehicle to cause the device to estimate an SOH, an RUL, and/or a performance indicator for the battery cell based on the charging data. The controller(s) may be configured to receive an indication, based on the performance indicator, that indicates the SOH and/or the RUL, or that indicates a request for additional data associated with the battery cell.
    Type: Application
    Filed: September 29, 2023
    Publication date: April 3, 2025
    Applicant: Caterpillar Inc.
    Inventors: Matthew BECKNER, Wellington Y. KWOK, Jinhui SUN, James Joshua DRISCOLL
  • Patent number: 12263549
    Abstract: Typically, fluids used in fracking operations erode valve seats in the fluid end of the reciprocating pump. Thus, these valve seats must frequently be replaced by new valve seats. Accordingly, a remanufacturing process is disclosed that successively cleans and/or grinds manually or mechanically at least the carbide inserts from used valve seats until the inserts are reusable. This reduces material costs and promotes efficiency and sustainability.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Abel Noriega, II, Curtis John Graham, Christopher Anthony Kinney, Connor J Docherty, Blake Messer
  • Patent number: 12264461
    Abstract: A heel shroud includes a bottom leg, and a side leg extending orthogonally from the bottom leg, forming an interior corner with the bottom leg. The heel shroud defines a first lateral surface, a second lateral surface, and the bottom leg includes a curved interior surface extending from the first lateral surface to the second lateral surface at least partially forming the interior corner. The first lateral surface defines a stress reduction geometry positioned at the interior corner, or includes a wear member that is attached to the side leg, or the bottom leg.
    Type: Grant
    Filed: March 9, 2022
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Ezhil Valavan Karunakaran, Brandon Hammig McCaffrey
  • Patent number: 12263754
    Abstract: A system can assign a machine to dispense material at designated areas along a route at a worksite. For example, the machine can be an electric water truck on a mine site, and the electric water truck can be assigned to spray water at areas along a route to control dust on the mine site. The system can verify that the machine is carrying enough material to dispense along the assigned route. The system can also verify that the battery of the machine is charged to a level sufficient to power travel of the machine through the assigned route and to power operations to dispense the material, based at least in part on a changing amount and/or weight of the material as the machine progresses along the route.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Michael Dennis Braunstein, Cameron Thomas Lane
  • Patent number: 12263720
    Abstract: A fluid system may include a first fluid circuit configured to circulate a first fluid to cool or heat a non-combustion power source of a machine. The first fluid circuit may include at least one of a refrigeration unit to cool the first fluid or a heating unit to heat the first fluid. A cooling capacity of the refrigeration unit may exceed a cooling requirement of the non-combustion power source, or a heating capacity of the heating unit may exceed a heating requirement of the non-combustion power source. The fluid system may include a second fluid circuit configured to circulate a second fluid. The fluid system may include a heat exchanger in the first fluid circuit and in the second fluid circuit. The heat exchanger may be configured to cool or heat the second fluid using the first fluid.
    Type: Grant
    Filed: September 14, 2022
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Cédric Girin, Sylvain Errant
  • Patent number: 12264636
    Abstract: A piston may have an annular body including a crown portion defining a longitudinal axis, a radial direction perpendicular to the longitudinal axis, a plane containing the longitudinal axis and the radial direction, and a contoured combustion bowl. In the plane containing the longitudinal axis and the radial direction, the crown portion includes a radially outer squish surface, and a swirl pocket having a reentrant surface that extends axially downwardly and radially outwardly from the squish surface defining a tangent that forms a reentrant angle with the squish surface that ranges from 53.0 degrees to 57.0 degrees.
    Type: Grant
    Filed: November 16, 2023
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Aaron S. Ness, Andrew J. Loetz, John R. Brubaker, Christopher L. Batta
  • Patent number: 12263442
    Abstract: A carbon capture system includes a hydrogen production module. The hydrogen production module is used to control the amount of hydrogen entering an internal combustion engine to reduce an amount of water vapor generated by the internal combustion engine, thereby increasing the efficiency of the carbon capture device. If too much water vapor is detected in an exhaust of the engine, the amount of hydrogen produced by a hydrogen production module can be increased, thereby reducing the amount of hydrogen entering the engine and reducing the amount of water vapor generated by the engine. A reformer catalyst can be used by the hydrogen production module to remove at least a portion of hydrogen in a fuel stream of the engine.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: David M. Ginter, Nikolas Karl Landin, David T. Montgomery
  • Patent number: 12264459
    Abstract: A visual reference system can be used with a loading machine such as a bucket loader having a bucket that can be vertically articulated with respect to a work surface. The visual reference system can include one or more illumination devices configured to project a visual fiducial beam toward the work surface. The visual fiducial beam can create a fiducial indication of where the bucket will contact the work surface when lowered adjacent the work surface. The visual reference system can assist in operation of the loading machine by enabling an operator to visually perceive the expected contact point between the bucket and work surface.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Andrew J. Massey, Joel R. Grimes
  • Patent number: 12263774
    Abstract: A chain connector for use with a tailgate chain linkage of a machine. The chain connector comprises a first flange, a second flange and a web. The chain connector provided with a first pair of apertures for coupling the chain connector to the machine, and a plurality of second pairs of apertures for coupling the chain connector to a chain. An effective length of the tailgate chain linkage may be adjusted by coupling the chain with a selected second pair of apertures since the plurality of second pairs of apertures are disposed at a plurality of distances from the first pair of apertures.
    Type: Grant
    Filed: February 22, 2021
    Date of Patent: April 1, 2025
    Assignee: Caterpillar SARL
    Inventor: Mark Robinson
  • Patent number: 12265398
    Abstract: A controller may receive a command indicating a target roll angle, of an implement of the machine, relative to a chassis of the machine. The controller may detect a change in a roll angle of the chassis of the machine. The controller may filter the change to pass a low frequency change and remove a high frequency change. The controller may cause the target roll angle to be adjusted based on the low frequency change.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Bradley Paul Krone, Joseph Leo Faivre
  • Patent number: 12264667
    Abstract: In some implementations, a controller may monitor, during a ramp up period of a fluid pump driven by a motor that is controlled by a variable frequency drive (VFD), an intake pressure of the fluid pump and a discharge pressure of the fluid pump. The controller may detect, based on monitoring the intake pressure and the discharge pressure, whether the intake pressure satisfies an intake pressure threshold or the discharge pressure satisfies a discharge pressure threshold. The controller may cause, via the VFD, reduction of a torque of the motor based on the intake pressure satisfying the intake pressure threshold or the discharge pressure satisfying the discharge pressure threshold.
    Type: Grant
    Filed: January 31, 2022
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Todd Ryan Kabrich, Andy Publes, Mark Francis Grimes, Yuesheng He
  • Publication number: 20250105314
    Abstract: The present disclosure relates to a fin structure for a radiator, comprising a plurality of elongated fins arranged in parallel and spaced apart from each other, wherein an air flow channel is defined between opposing main side surfaces of adjacent two fins for allowing cooling air to flow therethrough along a fin longitudinal direction; a corrugated section extending in the fin longitudinal direction is formed on each fin; and the fins are arranged such that for adjacent fins, the peaks of the corrugated sections are aligned in the arranging direction of the fins and troughs of the corrugated sections are aligned in the arranging direction of the fins, characterized in that, in each wavy unit of the corrugated section, the wave peak is offset from a central plane between two adjacent wave troughs and approaches an inclined slope extending between a wave peak and a wave trough in an adjacent wavy unit of a corrugated section of an adjacent fin.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 27, 2025
    Applicant: Caterpillar Inc.
    Inventors: Lei YU, Gengxin Liu, Guoping Tian, Guanqing Guo, Yuerou Wang
  • Publication number: 20250100539
    Abstract: A hybrid powertrain system of a planer, the hybrid powertrain system comprising an internal combustion engine, a rotor/cutter mechanically coupled with the internal combustion engine, a generator mechanically coupled with the internal combustion engine, an energy storage system including an energy module having at least one energy storage cell, wherein the energy module is electrically coupled with the generator and configured to receive power from and be charged by the generator, an electric motor in electrical communication with the energy module, the electric motor mechanically coupled with the rotor/cutter, and a powertrain controller in electrical communication with the internal combustion engine and the energy storage system. The powertrain controller is configured for controlling delivery of electrical power from the energy storage system to the rotor/cutter while controlling delivery of mechanical power from the internal combustion engine to the rotor/cutter.
    Type: Application
    Filed: September 27, 2023
    Publication date: March 27, 2025
    Applicant: Caterpillar Paving Products Inc.
    Inventors: Luke E. Graham, Brian J. Schlenker, Toby A. Frelich
  • Publication number: 20250102244
    Abstract: The present disclosure relates to a composite fin structure for a radiator, comprising a plurality of elongated corrugated fins arranged in parallel and spaced apart from each other. Air flow channels are defined between the opposing main side surfaces of adjacent fins, allowing cooling air to flow therethrough along a longitudinal direction of the fins. It is characterized in that each fin comprises a first corrugated fin section having a first waveform and a second corrugated fin section having a second waveform, with extending directions of the first and second waveforms being consistent with the longitudinal direction of the fin. A fin density of the first waveform is greater than that of the second waveform, and the first corrugated fin section extend at least in an inlet side region of each air flow channel. This invention also relates to a radiator with the composite fin structure, as well as a fuel cell cooling system comprising the radiator.
    Type: Application
    Filed: September 19, 2024
    Publication date: March 27, 2025
    Applicant: Caterpillar Inc.
    Inventors: Lei YU, Gengxin LIU, Guoping TIAN, Yumei WANG, Yuerou WANG
  • Publication number: 20250101926
    Abstract: A dual fuel system includes a first pressurized fuel reservoir, a first fuel pump fluidly connected to the first pressurized fuel reservoir, a second pressurized fuel reservoir, and a second fuel pump including a pump outlet fluidly connected to the second pressurized fuel reservoir, a pumping chamber, an actuating fluid inlet fluidly connected to at least one of the first fuel pump or the first pressurized fuel reservoir, and at least one pumping element. The first fuel pump may have excess capacity, at least at times, so as to provide a pressurized first fuel for actuating the second fuel pump. The at least one pumping element may include an intensifier or de-intensifier plunger such that a flow rate of a second pressurized fuel from the second fuel pump is different than a flow rate of the first pressurized fuel from the first fuel pump as an actuating fluid for the second fuel pump. Related apparatus and methodology is also disclosed.
    Type: Application
    Filed: September 27, 2023
    Publication date: March 27, 2025
    Applicant: Caterpillar Inc.
    Inventors: Hoisan Kim, Jack A. Merchant
  • Publication number: 20250100854
    Abstract: The present disclosure is directed towards a wear pad for a telehandler. A pad body extends across a thickness between opposing sliding and mount surfaces. The sliding surface is configured for a sliding boom section to slide therealong. A wire conductor extends through the thickness of the pad body at a wear depth from the sliding surface. When the sliding boom section wears down the thickness of the pad body by the wear depth to contact the at least one wire conductor, the wire conductor conducts an electrical current from a power source to the sliding boom section. Also disclosed is a wear pad arrangement with a wear monitoring system, a telehandler with such an arrangement and a method of monitoring a wear pad of a telehandler.
    Type: Application
    Filed: January 23, 2023
    Publication date: March 27, 2025
    Applicant: Caterpillar Inc.
    Inventor: Andrew MASSEY
  • Publication number: 20250102578
    Abstract: The present invention refers to a method for protecting a synchronous electric generator from pole slip which is driven by an engine via a coupler and which comprises step of obtaining a stator voltage signal being indicative of a voltage in a stator of the generator; a step obtaining an engine speed signal being indicative of an engine speed of the engine; and a step of detecting an onset of pole slip based on the stator voltage signal and the engine speed signal.
    Type: Application
    Filed: August 30, 2024
    Publication date: March 27, 2025
    Applicant: Caterpillar Energy Solutions GmbH
    Inventors: Assiet AREN, Paul MUELLER
  • Patent number: D1068854
    Type: Grant
    Filed: May 10, 2022
    Date of Patent: April 1, 2025
    Assignee: CATERPILLAR INC.
    Inventors: Ananda Sudhakar Ponnusamy, Rameshkrishnan Lakshminarayanan, Justin Douglas Speichinger, Cody P. Renshaw, Jaime E. Ruiz