Patents Assigned to Cummins Inc.
  • Patent number: 10773720
    Abstract: Systems and methods for implementing a start-stop feature on a vehicle powered at least in party by an internal combustion engine are described. The method includes receiving, at an electronic control unit (“ECU”) of the vehicle, an indication that the vehicle is in line at a drive-thru. The method further includes determining, by the ECU, a number of start-stop events anticipated during the drive-thru. The method includes determining, by the ECU, an approximate stop time for each of the number of start-stop events. The method further includes determining, by the ECU, that a battery of the vehicle has enough remaining charge to power a plurality of vehicle components during implementation of the start-stop feature. The method includes implementing, by the ECU, the start-stop feature in which the internal combustion engine is turned off for at least a portion of the time when the vehicle is stopped.
    Type: Grant
    Filed: September 21, 2018
    Date of Patent: September 15, 2020
    Assignee: Cummins, Inc.
    Inventors: Martin T. Books, John P. O'Brien, Praveen C. Muralidhar, Jaideep Prasad, Randal L. Bergstedt, Ian N. Alsman, Jagdeep I. Singh, Rajan S. Kalirai, Rima Salve, Jeffrey S. Rauch
  • Patent number: 10774778
    Abstract: A system for control of an internal combustion system having subsystems, each with different response times. Subsystems may include a fuel system, an air handling system, and an aftertreatment system, each being operated in response to a set of reference values generated by a respective target determiner. Calibration of each subsystem may be performed independently. The fuel system is controlled at a first time constant. The air handling system is controlled on the order of a second time constant slower than the first time constant. The aftertreatment system is controlled on the order of a third time constant slower than the second time constant. A subsystem manager is optionally in operative communication with each target determiner to coordinate control. Generally, dynamic parameters from slower subsystems are treated as static parameters when determining reference values for controlling a faster subsystem.
    Type: Grant
    Filed: October 14, 2015
    Date of Patent: September 15, 2020
    Assignee: Cummins Inc.
    Inventors: Phanindra V. Garimella, Paul V. Moonjelly, Edmund P. Hodzen, Ming-feng Hsieh, Gayatri Adi, Gokul Vishwanathan
  • Patent number: 10767584
    Abstract: Systems and apparatuses include an apparatus including an aftertreatment system control circuit structured to receive a signal indicative of an exhaust gas characteristic from a sensor, determine an aftertreatment system characteristic based on the exhaust gas characteristic, determine an acceptable input value responsive to the aftertreatment system characteristic, and control at least one of a fuel system actuator and an air handling actuator to achieve or substantially achieve the acceptable input value.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: September 8, 2020
    Assignee: Cummins Inc.
    Inventors: Michael Haas, Adam W. Kidd, Jeffrey David Selwyn Diwakar Abraham
  • Publication number: 20200277886
    Abstract: Systems and apparatuses include method of controlling a fan to supplement engine braking, including determining that an engagement condition for the fan exists, interpreting an operating parameter of the fan, determining a modified operating parameter for the fan based on a predefined limit, operating the fan according to the modified operating parameter, and ceasing operation of the fan according to the modified operating parameter when a disengagement condition for the fan exists.
    Type: Application
    Filed: February 27, 2020
    Publication date: September 3, 2020
    Applicant: Cummins Inc.
    Inventors: Stephen E. Rodriguez, Steven M. Bellinger, Gregory E. Smith
  • Publication number: 20200278083
    Abstract: A lubricant filter housing comprises a top plate defining a first opening. A base plate is positioned opposite the top plate. The lubricant filter housing further comprises at least one sidewall which cooperatively with the top plate and the base plate defines an internal volume. A plurality of plates are axially positioned in the internal volume between the top plate and the base plate. Each plate defines a plate opening axially aligned with the first opening which cooperatively with the first opening and a portion of the base plate, defines an internal cavity for housing a filter element. The plates define a first set of fluid channels structured to deliver a lubricant to the internal cavity, and a second set of fluid channels structured to provide a coolant around the first set of fluid channels.
    Type: Application
    Filed: October 26, 2018
    Publication date: September 3, 2020
    Applicant: CUMMINS INC.
    Inventors: James A. Dods, Paul Andrew Leggott
  • Patent number: 10760650
    Abstract: A gearbox includes a first shaft operatively coupled to an output of an engine, with the first shaft having a first longitudinal axis. A second shaft is operatively coupled to a driveshaft of an electric machine, the second shaft having a second longitudinal axis. The second longitudinal axis is non-coaxial with the first longitudinal axis. A geartrain operatively couples the first and second shafts. The geartrain is structured to passively switch between a first gear ratio and a different second gear ratio.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: September 1, 2020
    Assignee: Cummins Inc.
    Inventor: John P. O'Brien
  • Publication number: 20200271039
    Abstract: An apparatus includes an exhaust analysis circuit and a sensor diagnostics circuit. The exhaust analysis circuit is structured to interpret first oxygen data acquired by a first sensor indicative of a first amount of oxygen in an exhaust flow at a first location along an exhaust aftertreatment system, and interpret second oxygen data acquired by a second sensor indicative of a second amount of oxygen in the exhaust flow at a second location along the exhaust aftertreatment system. The sensor diagnostic circuit is structured to determine at least one of the first sensor and the second sensor are faulty based on the first amount of oxygen and the second amount of oxygen differing more than a threshold value.
    Type: Application
    Filed: November 15, 2016
    Publication date: August 27, 2020
    Applicant: Cummins, Inc.
    Inventors: Adam W. KIDD, Michael HAAS
  • Patent number: 10753334
    Abstract: An apparatus includes an engine friction module in operative communication with an engine and structured to interpret engine operation data indicative of an engine friction amount, and a stop/start module structured to compare the engine operation data with predetermined protective criteria that includes an engine friction threshold and to turn off the engine for at least a portion of time based on the engine friction threshold exceeding the engine friction amount.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: August 25, 2020
    Assignee: Cummins, Inc.
    Inventors: Martin T. Books, John P. O'Brien, Jaideep Prasad, Jeffrey S. Rauch
  • Patent number: 10755492
    Abstract: The present disclosure provides A vehicle hazard management system mounted to a vehicle having a high voltage system, comprising: a sensor configured to provide an activation signal in response to at least one of a collision involving the vehicle, a fault of the high voltage system, and at least partial submersion of the vehicle; a controller in communication with the sensor, the controller being configured to receive the activation signal and respond by generating an emergency message including information describing at least one of the make, model and year of the vehicle; and a transmitter coupled to the controller and configured to transmit the emergency message to an emergency communication device.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: August 25, 2020
    Assignee: Cummins Inc.
    Inventor: Jennifer Kay Light-Holets
  • Publication number: 20200261838
    Abstract: A method for cleaning a particulate matter filter is discussed. The particulate filter can include an inlet and an outlet, where the outlet includes openings to a plurality of outlet channels, and the inlet includes openings to a plurality of inlet channels. The outlet channels and the inlet channels are separated by a filer barrier. A fluid nozzle is positioned in contact with the outlet of the particulate filter over a first set of outlet channels. Fluid form the fluid nozzle is injected into the first set of outlet channels. While injecting the fluid, the position of the fluid nozzle is changed such that the fluid nozzle is positioned over a second set of outlet channels.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 20, 2020
    Applicant: CUMMINS INC.
    Inventors: Krishna Pradeep Chilumukuru, Todd M. Wieland, Luis Fernando Loo Zazueta
  • Publication number: 20200263601
    Abstract: A waste heat recovery (WHR) system and method for regulating exhaust gas recirculation (EGR) cooling is described. More particularly, a Rankine cycle WHR system and method is described, including an arrangement to improve the precision of EGR cooling for engine efficiency improvement and thermal management.
    Type: Application
    Filed: May 4, 2020
    Publication date: August 20, 2020
    Applicant: CUMMINS INC.
    Inventors: Christopher R. Nelson, Timothy C. Ernst
  • Patent number: 10750628
    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: May 6, 2016
    Date of Patent: August 18, 2020
    Assignee: Cummins Inc.
    Inventors: Nikhil Pandey, Daniel R. Harshbarger, William D. Meyer, Mark Swain
  • Patent number: 10746114
    Abstract: Systems and methods for implementing regeneration of an aftertreatment component using exhaust gas recirculation is described. According to various embodiments, an engine system comprises an engine, a turbocharger, a fluid control valve, and a lean NOx catalyst. The engine has a first set cylinders fluidly coupled to an intake manifold and a second set of cylinders having fluidly isolated from the intake manifold of the engine. The fluid control valve is disposed between the first exhaust outlet and the exhaust conduit and is structured to selectively fluidly couple the first exhaust outlet to the exhaust conduit. Also, the lean NOx catalyst has an inlet structured to receive exhaust gases from the exhaust conduit at a position downstream of the turbine outlet and the fluid control valve.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: August 18, 2020
    Assignee: Cummins Inc.
    Inventor: Samuel C. Geckler
  • Patent number: 10746123
    Abstract: An engine system includes an air handling and fuel system whose states are managed by a reference managing unit. The engine system has a plurality of sensors whose sensor signals at least partially define a current state of the engine system. The reference managing unit includes a controller which controls the air handling and fuel system of the engine system as well as a processing unit coupled to the sensors and the controller. The processing unit includes an agent which learns a policy function that is trained to process the current state, determines air handling references and fuel system references by using the policy function after receiving the current state as an input, and outputs the air handling references and fuel system references to the controller. Then, the agent receives a next state and a reward value from the processing unit and updates the policy function using a policy evaluation algorithm and a policy improvement algorithm based on the received reward value.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 18, 2020
    Assignee: Cummins Inc.
    Inventors: Kartavya Neema, Vikas Narang, Govindarajan Kothandaraman, Shashank Tamaskar
  • Patent number: 10737699
    Abstract: A system and method are disclosed for controlling shifting of a vehicle having an automated manual transmission. In the system and method, an amount of fuel being provided to a first grouping of cylinders is reduced, where the first grouping of cylinders are fewer than all of the available cylinders; the first grouping of cylinders are placed in an engine braking mode; a first gear of the vehicle transmission is disengaged; an amount of fuel being provided to a second grouping of cylinders which does not include the first grouping of cylinders is reduced; engine speed is reduced by braking; and a second gear of the transmission is engaged.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: August 11, 2020
    Assignee: Cummins Inc.
    Inventors: Jonathan A. Dickson, Jennifer K. Light-Holets, Raymond C. Shute, Matthew D. Flessner
  • Patent number: 10738872
    Abstract: A variety of scissors gear assemblies are disclosed that utilize integral parts or common tools to align teeth of the scissors gear assembly. Methods of use are also disclosed.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: August 11, 2020
    Assignee: Cummins Inc.
    Inventors: Gregory J. Mitchum, Benjamin D. Snider, Philip W. Burbrink, John G. Allman
  • Patent number: 10738671
    Abstract: A method includes interpreting NOx data indicative of an amount of NOx exiting an engine and an amount of NOx exiting an exhaust aftertreatment system coupled to the engine, determining a NOx conversion efficiency fault is present based on the amount of NOx exiting the engine and the amount of NOx exiting the exhaust aftertreatment system, and determining at least one of a selective catalytic reduction (SCR) catalyst of the exhaust aftertreatment system and a diesel particulate filter having a coating of a SCR reaction catalyst (DPF-SCR) of the exhaust aftertreatment system are responsible for the NOx conversion efficiency fault based on at least one of a reductant slip amount and a NOx conversion value across at least one of the SCR catalyst and the DPF-SCR.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 11, 2020
    Assignee: Cummins, Inc.
    Inventors: Aniket Gupta, Michael J. Cunningham, Michael Haas, Govindarajan Kothandaraman
  • Patent number: 10731259
    Abstract: A method of making a piston for an opposed-piston engine comprises providing a piston. The piston comprises a substantially cylindrical portion including a sidewall and a piston crown located at an end of the piston. The piston crown comprises an end surface structured to form a combustion chamber when disposed within a cylinder bore in cooperation with an end surface of a cooperating opposing piston. A bonding layer including a bonding material is deposited on the end surface of the piston crown using a high velocity oxy-fuel spray process. At least one thermal barrier layer comprising ceramic material is deposited above the bonding layer.
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: August 4, 2020
    Assignee: Cummins Inc.
    Inventors: David E. Koeberlein, J. Steven Kolhouse, Michael Hays
  • Patent number: 10731619
    Abstract: Systems, apparatuses, and methods include a stop/start module in operative communication with an engine. The stop/start module is configured to determine a target start/stop ratio for an engine based on an operating parameter, determine an actual start/stop ratio for the engine based on a determined number of times that the engine is turned off in response to a determined number of stopping events, activate an inhibiting condition in response to the actual stop ratio being greater than the target stop ratio at a beginning of a driving event, and prevent the engine from turning off during a stop event in response to determining that the inhibiting condition is active and that a stopping event has occurred.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 4, 2020
    Assignee: Cummins, Inc.
    Inventor: Martin T. Books
  • Publication number: 20200238812
    Abstract: A hydraulic engine system includes a first hydraulic pump-motor coupled to an engine and a second hydraulic pump-motor coupled to an electric machine. A hydraulic link fluidly connects the first and the second hydraulic pump-motors. During a cranking operation mode, the electric machine operates as a motor and transfers power via the second hydraulic pump-motor, the hydraulic link and the first hydraulic pump-motor to provide cranking torque to the engine. During a generator operation mode, the power generated by the engine is transferred via the first hydraulic pump-motor, the hydraulic link, and the second hydraulic pump-motor to the electric machine, operating as a generator, to generate electricity.
    Type: Application
    Filed: September 8, 2017
    Publication date: July 30, 2020
    Applicant: CUMMINS INC.
    Inventor: John P. O'BRIEN