Patents Assigned to Cummins Inc.
  • Internal combustion engine and method to increase the temperature of a liquid in the internal combustion engine
    Patent number: 11639693
    Abstract: A method, controller, and internal combustion engine including the controller and operable in accordance with the method by: determining a temperature of a working liquid in an engine block circuit (31, 35) of the internal combustion engine (10), the working liquid comprising a cooling liquid or a lubrication liquid; operating the internal combustion engine (10); engaging a thermal load responsive to the temperature of the liquid being below a first temperature threshold, wherein engaging the thermal load comprises at least one of increasing a pumping load of the internal combustion engine (10), or changing an air/fuel ratio, thereby adding heat to the engine block circuit (31, 35); controlling the thermal load as a function of the temperature of the liquid; and disengaging at least a portion of the thermal load responsive to the temperature of the liquid being above the low temperature limit.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: May 2, 2023
    Assignee: CUMMINS INC.
    Inventors: Jeremiah C. Nethercutt, Emrah Arslanturk, Weiwen Wang, James A. Cramer
  • VARIABLE ENERGY IGNITION SYSTEMS, METHODS, AND APPARATUSES
    Publication number: 20230129719
    Abstract: Systems, apparatuses, and methods of controlling an ignitor are disclosed. A method includes: receiving, by a controller, fuel quality data regarding a fuel for a spark-ignition engine; determining, by the controller, a fuel quality metric based on the fuel quality data; and controlling, by the controller, an ignition energy characteristic of an ignitor in response to the fuel quality metric.
    Type: Application
    Filed: December 23, 2022
    Publication date: April 27, 2023
    Applicant: Cummins Inc.
    Inventors: J. Steven Kolhouse, Daniel J. O'Connor, Philipe F. Saad
  • Wireless ECU configuration updating
    Patent number: 11636716
    Abstract: Systems, apparatuses, and methods for wirelessly updating electronic control unit configuration can include determining operation parameters to be changed of an electronic control unit of an equipment, and generating a write package including the operating parameters to be changed. The systems, apparatuses, and methods include transmitting the write package to the equipment. The write package causes the electronic control unit to change the operation parameters upon verifying that the operation parameters are applicable to the equipment based on values of the parameters. In response to determining that the operation parameters are not applicable to the equipment, the write package can be discarded.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: April 25, 2023
    Assignee: Cummins Inc.
    Inventors: Prasanna Srinivasan, Michael F. Mattern, Gorance V. Eftimovski, Scott David Richter, Tomas Lopez Lauterio, Troy D. Hamilton, Ankit R Tarkas, Sagar R. Uplenchwar
  • Diagnostic data visualization methods
    Patent number: 11636719
    Abstract: A method includes receiving technician data indicative of at least one diagnostic characteristic associated with one or more vehicles, wherein the at least one diagnostic characteristic is representative of a technician servicing event; interpreting the technician data to facilitate remote monitoring of the one or more vehicles; determining a potential root cause for a fault code of a particular vehicle of the one or more vehicles by comparing data of the particular vehicle to the technician data of one or more other vehicles; receiving a display request for a graphical user interface for formatting the graphical user interface in a desired graphical format based on the technician data; and providing the graphical user interface in the desired graphical format to a display device.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 25, 2023
    Assignee: Cummins Inc.
    Inventors: Michael F. Mattern, Lathika Amin, James C. Dager, Austin Davis, Gorance V. Eftimovski, Ramsundar Muthusubramanian, Paula Piercecchi Watson
  • Diagnostic system and method for detecting internal combustion engine faults using exhaust pressure readings
    Patent number: 11635350
    Abstract: A diagnostic system and method that (a) that uses models indicative of both successful firing and skips to determine if cylinders of a skip fire controlled internal combustion engine have successfully fired or successfully skipped and (b) uses filtered exhaust gas pressure readings for detecting faults associated with EGR systems and/or turbocharger systems.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: April 25, 2023
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventor: Shikui Kevin Chen
  • SYSTEMS AND METHODS FOR ENGINE COOLANT TEMPERATURE CONTROL
    Publication number: 20230124692
    Abstract: A controller includes at least one processor coupled to a memory storing instructions that, when executed by the at least one processor, cause the at least one processor to: determine a target engine outlet coolant temperature for a coolant in an engine system; determine an adjustment to a temperature of the coolant based on a determined engine inlet coolant temperature and the target engine outlet coolant temperature; and, alter a flow of the coolant by controlling a coolant valve in response to the determination of the adjustment to the temperature of the coolant.
    Type: Application
    Filed: March 23, 2021
    Publication date: April 20, 2023
    Applicant: Cummins Inc.
    Inventors: Mihir Desai, Luke T. Jennings, Robert J. Thomas
  • MULTI-CORE HEAT RECOVERY CHARGE COOLER
    Publication number: 20230117810
    Abstract: A waste heat recovery system for an engine system includes a first charge air cooler in communication with a working fluid path of the waste heat recovery system. The first charge air cooler includes a first waste heat recovery core and a first cooling fluid core. The first waste heat recovery core includes a first working fluid inlet configured to receive a working fluid from the working fluid path. The first working fluid conduit is coupled to the first working fluid inlet and a first working fluid outlet. The first cooling fluid core includes a first cooling fluid inlet in fluid communication with a cooling fluid source and a first cooling fluid conduit fluidly coupled to the first cooling fluid inlet and a first cooling fluid outlet. The first cooling fluid conduit is configured to direct cooling fluid from the first cooling fluid inlet to the first cooling fluid outlet.
    Type: Application
    Filed: March 15, 2021
    Publication date: April 20, 2023
    Applicant: CUMMINS INC.
    Inventors: Jared Carpenter Delahanty, Timothy C. Ernst, Achyut Paudel
  • Exhaust coolant system and method
    Patent number: 11629630
    Abstract: A system includes an engine defining a water jacket fluidly coupled to a heat exchanger. An exhaust manifold defines an exhaust manifold cooling passage. A pump is fluidly coupled to the water jacket, and to each of the heat exchanger and the exhaust manifold cooling passage. An engine cooling circuit includes the water jacket, the heat exchanger, and the pump. An exhaust cooling circuit is selectively fluidly coupled to the engine cooling circuit. The exhaust cooling circuit includes the water jacket, the exhaust manifold cooling passage, and the pump. A control valve includes an inlet fluidly coupled to a first portion of the water jacket. A first outlet is fluidly coupled to a second portion of the water jacket. A second outlet is fluidly coupled to the exhaust cooling circuit. The control valve is structured to selectively control flow of coolant fluid through the second outlet.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: April 18, 2023
    Assignee: Cummins Inc.
    Inventors: Brandon E. Chrastil, Doyle E. Whittington
  • Exhaust gas recirculation control in an internal combustion engine
    Patent number: 11624341
    Abstract: A system and method of integrating an engine having dynamic skip fire control with an exhaust gas recirculation system in a turbocharged internal combustion engine is described. An engine control system determines an appropriate firing pattern based at least in part on a desired exhaust gas recirculation flow rate. Signals from sensors in the intake manifold and exhaust system may also be used as part of a feedback loop to determine a desired exhaust gas recirculation flow rate.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: April 11, 2023
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Xin Yuan, Shikui Kevin Chen, Jennifer K. Light-Holets, Scott R. Bardakjy
  • High pressure common rail fuel pump outlet check valve retainer
    Patent number: 11624359
    Abstract: A pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: April 11, 2023
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Tamas Rauznitz, Brian M. Watson, Patrick D. Chasteen, Luke Allen Jones
  • SYSTEMS AND METHODS FOR CONTROLLING EXHAUST GAS EMISSIONS OF A MULTIPLE SCR AFTERTREATMENT SYSTEM
    Publication number: 20230105573
    Abstract: Methods, apparatuses, and systems for managing a multiple, and particularly a dual-selective catalyst reduction (SCR), exhaust aftertreatment system according to one or more determined reductant dosing strategies are disclosed. A method includes: receiving, by a controller, data indicative of a catalyst of an aftertreatment system; determining, by the controller, a reductant dosing strategy based on a comparison of the data indicative of the catalyst to a respective threshold; and commanding, by the controller, an amount of reductant dosing based on the determined reductant dosing strategy.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 6, 2023
    Applicant: CUMMINS INC.
    Inventors: David Schmidt, Jeffrey Diwakar Abraham, Thomas R. Nelson, Xiaobo Song, Yuying Song, Ying Yuan
  • Optimizing combustion recipes to improve engine performance and emissions for variable displacement engines
    Patent number: 11619187
    Abstract: A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a combustion recipe is ascertained and used operating the cylinders of the variable displacement internal combustion engine to generate the desired torque output. The recipe is preferably optimized for the engine operating at the second firing fraction, at least relative to the previous charge of the previous combustion recipe used with the first firing fraction.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: April 4, 2023
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Louis J. Serrano, Xiaoping Cai, Shikui Kevin Chen, Benjamin M. Wolk, Avra Brahma, Justin R. Lee
  • Lubrication fluid storage system with venting
    Patent number: 11619150
    Abstract: A storage reservoir for an internal combustion engine is provided that includes a plurality of vents connected to an air compartment that outlets air from the storage reservoir. The storage reservoir can remain vented to supply of lubrication fluid even if the internal combustion engine is inclined due to operation along severe grades.
    Type: Grant
    Filed: June 1, 2021
    Date of Patent: April 4, 2023
    Assignee: Cummins Inc.
    Inventor: Robert G. Sperry
  • BED LEVEL SENSOR FOR SOLID BEDS WITH LEVELING ACTUATORS
    Publication number: 20230103111
    Abstract: A biochar production system includes a reactor body, a central rod disposed within the reactor body, a leveling arm extending from the central rod and configured to rotate about the central rod, and a bed level sensor system. The bed level sensor system includes a float configured to move from a resting position on a biomass in the reactor to an ending position upon contact with the leveling arm, and a level sensor coupled to the float via a connector. The level sensor is configured to correspondingly move with the float. A controller is configured to detect bed levels of the biomass within the reactor body, and determine a plurality of sample readings based on the detected bed levels.
    Type: Application
    Filed: September 20, 2022
    Publication date: March 30, 2023
    Applicant: CUMMINS INC.
    Inventors: John Robert Pendray, Gregory J. Mitchum, Kevin James Keene
  • Combustion pre-chamber assemblies for an internal combustion engine
    Patent number: 11614027
    Abstract: A combustion pre-chamber assembly includes pre-chamber device body defining an annular plenum that is in fluid communication with the at least one bore that extends through the spark plug shell. The annular plenum is also in communication with at least one purging passage that extends from the annular plenum to an end surface of the pre-chamber device body. Residual exhaust gases in the annular volume of the spark plug are purged by fresh charge flow from the main combustion chamber as the piston approaches top dead center. The fresh charge flow that is provided to the annular plenum through the at least one purging passage and into the annular volume of the spark plug through the at least one bore through the spark plug shell.
    Type: Grant
    Filed: November 12, 2019
    Date of Patent: March 28, 2023
    Assignee: Cummins Inc.
    Inventors: Alan C. Anderson, William Marshall Cover, Xu Han, Nicholas James Welch, David Guillermo Gonzalez Medina, Xiao Qin, Andrew Guy Kitchen, Daniel J. O'Connor, Benjamín L. Olivas
  • SYSTEMS AND METHODS FOR COLD OPERATION NOx BURDEN REDUCTION
    Publication number: 20230086566
    Abstract: A method includes: initiating a low engine-out NOx (LEON) mode by controlling a component of a vehicle having an aftertreatment system to decrease an instantaneous engine-out NOx (EONOx) amount; comparing a temperature of the aftertreatment system during the LEON mode to a warm-operation threshold temperature; responsive to determining that the temperature of the aftertreatment system exceeds the warm-operation threshold temperature, disengaging the LEON mode; responsive to determining that the temperature of the aftertreatment system is below the warm-up operation threshold temperature, comparing information indicative of an operating status of the vehicle to a LEON exit threshold; and disengaging the LEON mode responsive to determining that the information indicative of the operating status of the vehicle during the LEON mode exceeds the LEON exit threshold.
    Type: Application
    Filed: December 5, 2022
    Publication date: March 23, 2023
    Applicant: Cummins Inc.
    Inventors: Janardhan Kodavasal, Ved Merchant, Agneya Turlapati, Kristopher R. Bare
  • Air tank and variable geometry air handling in hydrogen fuel cells
    Patent number: 11611091
    Abstract: An air handling system for a fuel cell stack includes a pneumatic storage device disposed downstream from a compressor, a flow control valve system configured to operatively couple an inlet of the pneumatic storage device to an outlet of the compressor and configured to operatively couple an outlet of the pneumatic storage device to an inlet of the fuel cell stack, and a controller configured to, in response to a power demand being greater than a threshold, cause the flow control valve to open to increase a flow rate of air from the pneumatic storage device to the fuel cell stack.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: March 21, 2023
    Assignee: CUMMINS INC.
    Inventors: Avinash Vallur Rajendran, Vivek Anand Sujan, Archit N. Koti
  • Method and system for a hybrid power control in a vehicle
    Patent number: 11608051
    Abstract: Methods and systems for improving fuel economy and reducing emissions of a vehicle with an electric motor, an engine, an energy storage device, and a controller are disclosed. The method includes obtaining current state information including a current hybrid control surface, and determining a target hybrid control surface for the vehicle based on the current state information.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: March 21, 2023
    Assignee: CUMMINS INC.
    Inventors: Vivek A. Sujan, Jeffrey A. Green, Thomas M. Yonushonis, Timothy J. Proctor, Daniel R. Dempsey, David W. Ochs, Thomas R. Marsh, James R. Nebergall, J. Steven Kolhouse
  • INTAKE SYSTEM FOR NATURAL GAS ENGINE
    Publication number: 20230080721
    Abstract: The present invention relates to an intake system for natural gas engine. An intake system for an engine is provided. A conduit is configured to direct a combustible mixture to a cylinder head. A mixing unit is coupled to the conduit. The mixing unit includes a fuel doser configured to dispense fuel into the conduit and a first mixer positioned downstream of the fuel doser. The first mixer is configured to mix air and the fuel. The mixing unit further includes a exhaust gas doser configured to dispense exhaust gas into the conduit and a second mixer positioned downstream of the exhaust gas doser. The second mixer is configured to mix the exhaust gas with the air and the fuel to make the combustible mixture. An air intake throttle is configured to direct the air into the mixing unit.
    Type: Application
    Filed: November 22, 2022
    Publication date: March 16, 2023
    Applicant: Cummins Inc.
    Inventors: Santosh Kishor Ochawar, Ashwini Rahal Mule, Rene Carrillo, Fei Li, Xinwei Meng, Yuejin Xi
  • Adapters for electronic control unit
    Patent number: 11606869
    Abstract: An engine control system includes an integrated engine control module assembly having an engine control module and an adapter module. The integrated engine control module assembly further includes a first connector, a second connector, and a hermetic enclosure. The first connector includes a connection circuit configured to connect the integrated engine control module assembly to engine hardware. The second connector is configured to connect the adapter module to engine hardware. The hermetic enclosure houses the engine control module and is configured to protect the engine control module from environmental conditions.
    Type: Grant
    Filed: December 10, 2021
    Date of Patent: March 14, 2023
    Assignee: Cummins Inc.
    Inventors: Nikhil Pandey, Daniel R. Harshbarger, William D. Meyer, Mark Swain