Patents Assigned to Cummins Inc.
  • Patent number: 12196144
    Abstract: Systems and methods for aftertreatment system thermal management using cylinder deactivation and/or intake-air throttling are disclosed. Systems and methods for thermal management of an aftertreatment system are provided herein. A controller coupled to an engine and an exhaust aftertreatment system is configured to: receive a first temperature value associated with the exhaust aftertreatment system and a second temperature value associated with the engine; determine, based on comparing the first temperature value to a first threshold, a thermal management mode including a first thermal management mode or a second thermal management mode; determine, responsive to determining the thermal management mode and based on comparing the second temperature value to a second threshold, an operating mode for the thermal management mode including at least one of a first operating mode or a second operating mode; and initiate the at least one of the first or the second operating mode.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: January 14, 2025
    Assignees: Cummins Inc., Tula Technolgy, Inc.
    Inventors: Kunpeng Wang, Ke Wang, Yuan Zoe, Zhou Cao
  • Patent number: 12194558
    Abstract: A method is provided comprising identifying an alignment point of a workpiece; positioning a first end of an electrode in the direction of the alignment point of the workpiece; applying a first voltage to the electrode wherein the applied first voltage generates a spark; rotating the electrode in a first direction; advancing the electrode toward the alignment point by a first distance wherein advancing the electrode and applying the first voltage creates a first orifice section; applying a second voltage to the electrode and modifying one or more operational parameters of the electrode; advancing the electrode toward the alignment point by a second distance wherein advancing the electrode and applying the second voltage causes formation of at least a second orifice section; wherein the first and second orifice sections cooperate to form an orifice comprising a first flow area and a second flow area.
    Type: Grant
    Filed: March 8, 2023
    Date of Patent: January 14, 2025
    Assignee: Cummins Inc.
    Inventors: Chen-Chun Kao, John K. Awad, Steven Valentin
  • Patent number: 12195020
    Abstract: A system includes a sensor array and a processing circuit. The processing circuit is operable to: store a policy; receive the sensor information from the sensor array; receive horizon information from a horizon system; input the sensor information and the horizon information into the policy; determine an output of the policy based on the input of the sensor information and the horizon information; control operation of a vehicle system according to the output; compare the sensor information received after controlling operation of the vehicle system according to the output relative to a reward or penalty condition; provide one of a reward signal or a penalty signal in response to the comparison; update the policy based on receipt of the reward signal or the penalty signal; and control the vehicle system using the updated policy to improve operation in view of the operating parameter.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: January 14, 2025
    Assignee: Cummins Inc.
    Inventors: Hoseinali Borhan, Abbas Hooshmand Salemian, Edmund P. Hodzen
  • Patent number: 12188427
    Abstract: A computer system includes a processor and a memory configured with instructions executable by the processor to determine a fuel configuration in response to input received by the HMI, determine fuel composition constituents in response to at least the fuel configuration, determine one or more fuel properties in response to at least one or more fuel composition constituents, determine one or more engine controller adjustments in response to the one or more fuel properties, and provide the one or more adjustments to an engine control system. A human-machine interface (HMI) is operatively coupled with the processor, and a memory and may be utilized to provide commissioning or service inputs.
    Type: Grant
    Filed: November 20, 2023
    Date of Patent: January 7, 2025
    Assignee: Cummins Inc.
    Inventor: Robert J. Thomas
  • Patent number: 12188431
    Abstract: A waste heat recovery system comprising a thermal circuit. The thermal circuit includes a boiler and an expander fluidly coupled to the boiler. The thermal circuit further includes a power transfer system integrated to the expander. The power transfer system is configured to receive mechanical energy from the expander. The thermal circuit further includes an ejector fluidly coupled to the boiler and to the power transfer system. The ejector is configured to receive a motive flow of working fluid from the boiler. The ejector is further configured to receive a suction flow of working fluid from the power transfer system. The ejector is further configured to combine the motive flow of working fluid and the suction flow of working fluid.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: January 7, 2025
    Assignee: Cummins Inc.
    Inventors: Timothy C. Ernst, Jared Carpenter Delahanty, Nathan Thomas Honican
  • Patent number: 12191758
    Abstract: An inverter system is provided such that the system includes a direct-current (DC) voltage supply, an inverter, an electric machine such as a motor, and a controller coupled with the inverter. The inverter has four or more legs, each with two switches operating complementary to each other. The controller can determine which three of the four or more legs are selected to operate the inverter and uses a remaining one of the four or more legs to operate the inverter by activating/deactivating certain switches during null vector state.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: January 7, 2025
    Assignee: Cummins Inc.
    Inventors: Akm Arafat, Moinul S. Haque, Bradford K. Palmer, Patrick Kaufman
  • Patent number: 12188386
    Abstract: A lubrication system for an internal combustion engine includes a fluid flow control device at an outlet side of the pump that regulates pressure conditions at the outlet side of the pump upstream of the lubrication circuit in the engine. The fluid flow control device is located in a recirculation path, and opens in response to a fluid pressure at the outlet of the pump exceeding a first threshold to allow the fluid to pass from the outlet side of the pump back to an inlet side of the pump. The recirculation path includes a tuning device that maintains the fluid pressure at engine speeds above the first threshold. In response to engine speeds above a second threshold, the tuning device restricts fluid flow in the recirculation path so that the fluid pressure in the fluid flow path increases.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: January 7, 2025
    Assignee: Cummins Inc.
    Inventors: Nicholas James Welch, Matthew D. Flessner
  • Patent number: 12173675
    Abstract: At least some embodiments of the present disclosure are directed to pump assemblies. In some embodiments, the pump is a high-pressure pump for an engine. The pump includes: an inlet valve configured to receive fuel; an armature coupled to the inlet valve and configured to actuate the inlet valve; and a pump barrel comprising a barrel guide, the barrel guide comprising a protrusion and configured to guide a motion of the armature.
    Type: Grant
    Filed: October 30, 2023
    Date of Patent: December 24, 2024
    Assignee: Cummins Inc.
    Inventors: Eric A. Benham, Karthik Sethuraman, Donald J. Benson, Michael Andrew Lucas, Richard E. Duncan
  • Patent number: 12175813
    Abstract: A system is configured to store a relationship data set of a plurality of diagnostic estimators and a plurality of failure modes, each failure mode represents a type of failure that can occur with a sensor or a vehicle component of a vehicle system, each diagnostic estimator is associated with a respective subset of the failure modes, each subset defines a control space within the vehicle system that contains at least one of (i) one or more sensors or (ii) one or more vehicle components. The system is configured to store a healthy diagnostic vector regarding nominal operational parameters of the vehicle system; acquire diagnostic information regarding current operational parameters of the vehicle system to generate an error diagnostic vector; apply the error diagnostic vector to the healthy diagnostic vector to generate a ratio diagnostic vector; and apply the ratio diagnostic vector to generate a value for each failure mode.
    Type: Grant
    Filed: September 21, 2023
    Date of Patent: December 24, 2024
    Assignee: Cummins Inc.
    Inventors: Jeffrey Diwakar Abraham, Marcela Schmalz de Bernardi, Avra Brahma, Timothy J. Greis, Michael Haas, Gregory H. Henderson, Adam W. Kidd, Lyle E. Kocher, Krithika Mohan, Daniel J. Smith, Christophe Tricaud, Ananth Vemuri, Easwar Yarrabikki
  • Patent number: 12173635
    Abstract: A system, method, and apparatus for decreasing harmful emissions is provided. The system includes an aftertreatment system comprising an exhaust conduit that directs exhaust gas from an engine system; a heater coupled to the aftertreatment system and configured to provide heat; and a controller coupled to the heater. The controller is configured to: determine whether the engine system is idling; in response to determining that the engine system is idling, determine whether a conversion efficiency of the engine system is greater than a threshold value; in response to determining that the conversion efficiency is greater than the threshold value, determine whether a temperature regarding the aftertreatment system is greater than a threshold temperature; and in response to determining that the temperature of the aftertreatment system is greater than the threshold temperature, at least one of disable or partially disable the heater.
    Type: Grant
    Filed: December 16, 2022
    Date of Patent: December 24, 2024
    Assignee: Cummins Inc.
    Inventors: Xing Jin, Janardhan Kodavasal, Ved Merchant, Sriram S. Popuri
  • Publication number: 20240418107
    Abstract: An engine system including an engine block. The engine block including a plurality of cylinders defining a plurality of combustion chambers each comprising one of a cylinder head and a piston. Each of the plurality of cylinder heads includes an exhaust valve and an intake valve. The engine system further includes a first control valve, a second control valve, rocker lever, and an auxiliary rocker lever. The first control valve is coupled to the camshaft and configured to activate the rocker lever. The second control valve is coupled to the camshaft and configured to activate the auxiliary rocker lever. The rocker leaver is configured to actuate the at least one exhaust valve to allow exhaust gas to flow out of at least one of the plurality of cylinders. The auxiliary rocker lever is configured to actuate at least one of the plurality of exhaust valves to allow exhaust to flow into the cylinder.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 19, 2024
    Applicant: CUMMINS INC.
    Inventor: Scott Robert Bardakjy
  • Publication number: 20240418109
    Abstract: An oil filter housing system comprising a housing body. The housing body defines an integral coolant supply passage in fluid supplying communication with a coolant pump. The housing body further defines an integral coolant volute in fluid receiving communication with the coolant pump. The housing body defines an oil cooler cavity configured to house an oil cooler, a first integral oil flow passage in fluid supplying communication with the oil cooler, and a second integral oil flow passage in fluid receiving communication with the oil cooler. A third integral oil flow passage is in fluid supplying communication with a turbocharger. An angled oil filter interface is coupled to the housing body and is configured to receive an oil filter, the oil filter in fluid supplying communication with the third integral oil flow passage.
    Type: Application
    Filed: June 12, 2024
    Publication date: December 19, 2024
    Applicant: CUMMINS INC.
    Inventors: Hemant Prakash Deshpande, Saurabh Rajale, Dilip Prabhakar Rohokale
  • Patent number: 12168951
    Abstract: Systems, apparatuses, and methods include predicting a sulfur exposure of one or more copper-zeolite catalysts deployed in an exhaust aftertreatment system; comparing the predicted sulfur exposure to a predefined sulfur exposure threshold; and responsive to the determination, heating the exhaust aftertreatment catalyst to a predefined heat treatment temperature for a predefined time period to desulfate the one or more copper-zeolite catalysts.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: December 17, 2024
    Assignee: Cummins Inc.
    Inventors: Di Wang, Richard J. Ancimer, Michael J. Cunningham, Aleksey Yezerets, Jinyong Luo, Yadan Tang, Yuhui Zha
  • Patent number: 12168966
    Abstract: A connector block that directs fuel from an outer fuel line to an inner fuel line. The connector block includes an inlet that couples to the outer fuel line, an outlet that coupled to the inner fuel line, and a fuel accumulator fluidly coupled to the inlet and the outlet. The fuel accumulator directs the fuel from the inlet to the outlet.
    Type: Grant
    Filed: November 17, 2023
    Date of Patent: December 17, 2024
    Assignee: Cummins Inc.
    Inventors: Kieran J. Richards, Brandon Glover, Vincent Denoyelle, Jacques L. Vincent, Raghuvaran Arumugam, Satya Dinakar Vyseetty, Joseph A. Worthington, Abhishek Mehrotra, Deepak Pillai, Todd S. Manley
  • Patent number: 12168946
    Abstract: Systems, apparatuses, and methods for monitoring a catalyst health parameter are provided. A system includes one or more processing circuits having one or more memory devices coupled to one or more processors. The one or more memory devices store instructions that, when executed by the one or more processors, cause the one or more processors to: receive information indicative of at least one of a temperature of exhaust gas entering the aftertreatment system, a time at idle, or a mass flow of exhaust gas; determine a catalyst health management criteria based on the information; determine a catalyst health indicator based on the catalyst health management criteria being met; compare the determined catalyst health indicator to a predetermined health threshold criteria; and provide a notification based on the determined catalyst health indicator being less than the predetermined health threshold criteria.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: December 17, 2024
    Assignee: Cummins Inc.
    Inventors: Robert C. Borregard, Hasan Mohammed, Atin Tandon, Daniel J. Robinson, Matthew W. Isaacs, Benjamin Goldberger, Arturo Mendoza-Pinon, Douglas Carnecki, Frank Ruggiero, David L. Hirt
  • Patent number: 12163453
    Abstract: A system includes a first heater positioned in or proximate to an exhaust aftertreatment system in exhaust gas-receiving communication with an engine, a second heater positioned downstream of the first heater, and a controller coupled to the first and second heaters. The controller is structured to: determine, based on information indicative of a temperature regarding the exhaust aftertreatment system, that the temperature regarding the exhaust aftertreatment system is below a predefined temperature threshold; determine that the second heater is in or likely in an error state; and control a temperature regarding the exhaust aftertreatment system using the first heater in response to determining that the second heater is in or likely in the error state, wherein the first heater controls the temperature regarding the exhaust aftertreatment system after a temperature regarding an engine intake air is at or above a predefined air intake temperature threshold.
    Type: Grant
    Filed: January 30, 2024
    Date of Patent: December 10, 2024
    Assignee: Cummins Inc.
    Inventors: Kristopher R. Bare, Xing Jin, Jennifer Kay Light-Holets, Sriram S. Popuri, Xiaobo Song
  • Patent number: 12163484
    Abstract: A piston can include a skirt, a crown, and a cooling gallery. The skirt can have an upper body portion. The crown can be formed at the upper body portion. A wall can be formed underneath the crown so as to define a cooling gallery within the piston. The cooling gallery includes cooling gallery peripheral portion and a cooling gallery central portion. The cooling gallery can be configured to receive and to retain an amount of cooling fluid and to cause movement thereof within the cooling gallery between a cooling gallery peripheral portion and a cooling gallery central portion as the piston travels between top dead center and bottom dead center so as to cool both the piston outer region and the piston center region.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: December 10, 2024
    Assignee: Cummins Inc.
    Inventor: Robert G. Sperry
  • Patent number: 12163449
    Abstract: The present disclosure provides a lubrication system comprising: a pump having an inlet in fluid communication with a lubricant source and an outlet; a cooler having an inlet in fluid communication with the outlet of the pump and an outlet; a lubrication filter having an inlet in fluid communication with the outlet of the cooler and an outlet; a first delivery path in fluid communication with the outlet of the lubrication filter, the first delivery path being configured to deliver cooled, filtered lubricant to a bearing system of an engine; and a second delivery path in fluid communication with the outlet of the pump, the second delivery path being configured to deliver uncooled, unfiltered lubricant to piston cooling nozzles of the engine.
    Type: Grant
    Filed: June 21, 2023
    Date of Patent: December 10, 2024
    Assignee: Cummins Inc.
    Inventors: Nathaniel P. Hassall, John Jerl Purcell, III, Stephen D. Cofer, Jr., David M. Barnes, Aaron S. Quinton, Reid M. Irish
  • Publication number: 20240401512
    Abstract: A system includes a passive NOx adsorber (PNA) for receiving and treating exhaust gas generated by an engine and a controller. The controller is configured to: while exhaust gas is received by the PNA, detect a torque demand that is greater than a threshold value; responsive to detecting that the torque demand is greater than the threshold value, engage a motor, coupled with a battery system, with a drive shaft of the system to meet at least a portion of the torque demand; and in response to the engagement of the motor with the drive shaft not meeting all of the torque demand, engage the engine with the drive shaft to meet a remainder of the torque demand.
    Type: Application
    Filed: August 13, 2024
    Publication date: December 5, 2024
    Applicant: Cummins Inc.
    Inventors: Jinyong Luo, Xiaobo Song, Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Manik Narula, Lars K. Henrichsen
  • Patent number: 12159536
    Abstract: Systems and apparatuses include one or more processing circuits including one or more memory devices coupled to one or more processors. The one or more memory devices are configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to: receive a parameter regarding operation of a first vehicle of a first platoon; compare the parameter to a first predetermined threshold; responsive to determining that the parameter satisfies the first predetermined threshold, determine an exit parameter for the first vehicle; and cause the first vehicle to exit the first platoon based on the exit parameter.
    Type: Grant
    Filed: May 8, 2023
    Date of Patent: December 3, 2024
    Assignee: Cummins Inc.
    Inventors: Vivek Anand Sujan, Phani Kiran Vajapeyazula, Govindarajan Kothandaraman, Jingxuan Liu, Kenneth M. Follen