Patents Assigned to Cummins Inc.
  • Detecting thermal events in battery packs
    Patent number: 11791502
    Abstract: A battery module for use in a battery pack is disclosed. The battery module (12, 12?) comprises a plurality of battery cells (24, 25) and a sensing circuit (62) extending across the battery cells. A monitoring unit (46) is connected to the sensing circuit. The monitoring unit comprises a continuity detector (66) arranged to detect a break in continuity of the sensing circuit (62). This can allow a thermal event occurring in one of the plurality of cells to be detected.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: October 17, 2023
    Assignee: CUMMINS INC.
    Inventors: Lawrence Hilligoss, Daniel Riegels, Matthew D. Nelson, Tyler A. Rash, Rick Lewis
  • Fluid drain system
    Patent number: 11788445
    Abstract: A fluid drain system is provided, comprising: a fluid reservoir having at least two sumps including a first sump having a first hole for draining fluid from the fluid reservoir and a second sump having a second hole for draining fluid from the fluid reservoir; a first drain plug having a first end with a first drive feature configured to be operated with a tool for insertion and removal of the first drain plug into and out of the first hole of the fluid reservoir and a second end with a second drive feature; and a second drain plug having a first end with a third drive feature configured to be engaged by the second drive feature of the first drain plug for insertion and removal of the second drain plug into and out of the second hole of the fluid reservoir.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: October 17, 2023
    Assignee: Cummins Inc.
    Inventors: Jason R. Griffin, Ajit R. Pawar, Norberto Nunes, Glen R. Alden, Mathias Kemnitzer
  • SYSTEMS AND METHODS FOR MANAGEMENT EXHAUST AFTERTREATMENT SYSTEM USING PREDICTIVE ANALYTICS
    Publication number: 20230326264
    Abstract: Systems and apparatuses include a controller including at least one processor coupled to a memory storing instructions that, when executed by the at least one processor, causes the at least one processor to: receive data indicative of at least one of a current route or of a current performance of a vehicle; correlate at least one of the current route or the current performance to a control strategy; and determine at least one of a timing or a duration of an active regeneration event for an aftertreatment system based on the correlated control strategy.
    Type: Application
    Filed: November 8, 2021
    Publication date: October 12, 2023
    Applicant: Cummins Inc.
    Inventors: John K. Heichelbech, J. Steven Kolhouse, Sun Shuai, Di Wang, Kai Wang, Yujun Wang
  • Flexible control for a six-phase machine
    Patent number: 11784596
    Abstract: A method of controlling a multi-phase electric machine includes implementing a first control method to control the operation of a six-phase machine that is configured as a combination of two three-phase machines. The method also includes determining whether a fault exists in the six-phase machine. In response to determining that the fault exists in the six-phase machine, the method includes implementing a second and different control method to control the operation of the six-phase machine.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: October 10, 2023
    Assignee: CUMMINS INC.
    Inventors: Akm Arafat, Bradford K. Palmer, Dakshina S Murthy-Bellur
  • Architecture and control system for electrically-powered accessories of a non-hybrid vehicle
    Patent number: 11784507
    Abstract: A system for a non-hybrid vehicle is provided. The system includes an electromagnetic device structured to couple to an engine and generate AC electrical power from the engine. The system also includes an AC-to-DC inverter structured to receive and change the AC electrical power to regulated DC electrical power. Additionally, the system includes an electrical path coupled to the AC-to-DC inverter and configured to provide the regulated DC electrical power directly to an electrically-powered accessory at or above 28 volts DC.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: October 10, 2023
    Assignee: Cummins Inc.
    Inventors: Joseph E. Paquette, Martin T. Books, Mahesh Madurai Kumar, Jaroslaw Leonarski, Gary L. Parker, Erik L. Piper
  • Prime mover systems including multi-accessory drives and methods of controlling same
    Patent number: 11781475
    Abstract: One embodiment is a system comprising an internal combustion engine including an output shaft, a pulley system structured to be driven by the output shaft, a first alternator and a second alternator structured to be driven by the pulley system, and an electromagnetic clutch integrated within one of the pulley system, the first alternator and the second alternator and structured to selectably couple and decouple at least one of the first alternator and the second alternator from the output shaft. The system includes a controller in operative communication with the internal combustion engine system and structured to evaluate power demand and power production capability parameters of the system and to control the electromagnetic clutch to engage or disengage in response to the evaluation.
    Type: Grant
    Filed: September 8, 2022
    Date of Patent: October 10, 2023
    Assignee: Cummins Inc.
    Inventors: Kieran J. Richards, David George Sharpe
  • Detection of delta pressure sensor icing
    Patent number: 11781944
    Abstract: An engine system includes a delta pressure sensor configured to sense a pressure difference across an engine exhaust handling component and an electronic control system configured to determine a cold sensor condition permitting icing of the delta pressure sensor, determine a sensed pressure deviation condition indicative of deviation of the pressure difference sensed by the delta pressure sensor from a deviation limit, dynamically model a sensor heat transfer condition indicative of heating or cooling of the delta pressure sensor, determine that the sensor heat transfer condition is indicative of insufficient heating of the delta pressure sensor to mitigate icing of the delta pressure sensor, and determine an icing condition of the delta pressure sensor.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 10, 2023
    Assignee: Cummins Inc.
    Inventors: Jesse Kurt Magnuson, Soumya Nayyar, Mostafa S. Raihan
  • System and method for measuring fuel injection during pump operation
    Patent number: 11781500
    Abstract: A method is disclosed of controlling operation of a fuel injector in response to measuring a quantity of fuel injected by the fuel injector from a fuel accumulator to an engine cylinder during operation of a fuel pump that delivers fuel to the accumulator, comprising: determining an average pressure of the fuel accumulator during a first time period before a fuel injection event; predicting a mass of fuel delivered to the fuel accumulator during a pumping event (Qpump); determining an average pressure of the fuel accumulator during a second time period after the fuel injection event; estimating a leakage of fuel; computing the injected fuel quantity by adding the average pressure during the first time period to Qpump, and subtracting the average pressure during the second time period and the leakage; and using the computed injected, fuel quantity to control operation of the fuel injector.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: October 10, 2023
    Assignee: Cummins Inc.
    Inventors: Tommy J. Albing, David Michael Carey
  • Controls for break-in operation of green engines
    Patent number: 11781498
    Abstract: An electronic control system configured to control operation of an engine by evaluating whether to operate the engine in a green engine break-in mode. In the green engine break-in mode, the electronic control system is configured to determine a break-in torque limit for the engine, dynamically vary the break-in torque limit in response to break-in operation of the engine, and control operation of the engine using dynamically modified break-in torque limit.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: October 10, 2023
    Assignee: Cummins Inc.
    Inventors: Rebekah Lippis McIntier, John D. Ridge, Daniel Christopher Villiger
  • GASEOUS FUEL-AIR MIXER WITH HIGHER MIXTURE UNIFORMITY
    Publication number: 20230313760
    Abstract: A gaseous fuel-air mixer includes an outer shell, an inner shell, and a fuel chamber rib. The outer shell includes an air intake and a fuel intake. The air intake is configured to receive air. The air intake has an air outlet. The fuel intake has a fuel inlet that is configured to receive fuel. The inner shell includes an inner shell intake that is configured to separately receive the air from the air outlet and the fuel from the fuel intake and to provide a gaseous fuel-air mixture. The inner shell cooperates with the outer shell to define a fuel intake collecting chamber that is configured to receive the fuel from the fuel inlet and a fuel intake concentrating chamber that is configured to receive the fuel from the fuel intake collecting chamber and provide the fuel to the inner shell intake.
    Type: Application
    Filed: July 16, 2021
    Publication date: October 5, 2023
    Applicant: CUMMINS INC.
    Inventors: George Martin Tolhurst, Joshua Bradley Bettis, Alan C. Anderson, Jeremy Aaron Lackey
  • Method and system for kinetic energy recovery in a hybrid powertrain during engine shutdown
    Patent number: 11772628
    Abstract: Examples of hybrid powertrain systems are provided herein. The system includes: an engine; a motor/generator (“MG”); a clutch coupled to the engine and the MG; a transmission coupled to the MG; an energy storage system connected to the MG; and a controller coupled to the engine, the MG, the clutch, the transmission and the energy storage system. The controller is configured to initiate an engine stop, allow engine torque and MG torque to reduce to zero or near zero, shift the transmission to a neutral gear, cause the MG to operate in a generator mode, thereby loading the engine to recover kinetic energy from the engine, disengage the clutch to decouple the MG from the engine, increase the speed of the MG to a target speed, and shift the transmission into gear in response to the MG reaching the target speed.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: October 3, 2023
    Assignee: CUMMINS INC.
    Inventors: David B. Snyder, Ming-Feng Hsieh
  • Fault tolerant operations of a six-phase machine
    Patent number: 11777437
    Abstract: A method of operating a multi-phase electric machine includes operating a six-phase machine with six phases that are configured into a first group having a first neutral connection and a second group having a second neutral connection. The method also includes determining whether at least one of the six phases is experiencing a fault. In response to the determining, the method includes combining the first and second neutral connections to form a common neutral connection to continue operating the six-phase machine by using the remaining phase not experiencing the fault.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: October 3, 2023
    Assignee: CUMMINS INC.
    Inventors: Akm Arafat, Dakshina S. Murthy-Bellur
  • Systems and methods to issue warnings to enhance the safety of bicyclists, pedestrians, and others
    Patent number: 11772673
    Abstract: Systems and methods for triggering and issuing safety warnings, including a risk-assessment system that collects movement data pertaining to each of a plurality of subsystems including one or more slow-moving subsystems (SMSSs) and/or one or more fast-moving subsystems (FMSSs). The risk-assessment system identifies, based at least in part on the collected movement data, an instance in which each of a set of warning-triggering conditions is true. The set includes (i) that a likelihood of a collision occurring among an identified subset of the plurality of subsystems is greater than a collision-probability threshold and (ii) that at least one of the subsystems in the identified subset has at least one current movement anomaly. In response to identifying the instance, the risk-assessment system issues at least one warning to at least one of the subsystems in the identified subset.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: October 3, 2023
    Assignee: Cummins Inc.
    Inventors: Thomas M. Yonushonis, J. Stephen Wills, Jennifer Kay Light-Holets, Joseph P. Chandraraj
  • Method and system for nozzle ring repair
    Patent number: 11773749
    Abstract: A method and system are provided for repairing a nozzle ring having a defect adjacent a transition between a ring plate and an inner skirt of the nozzle ring, comprising: forming at least one cut to detach at least one of a portion of the inner skirt, a portion of the transition, and a portion of the ring plate, thereby forming a joint surface and removing at least a portion of the defect; providing a replacement ring including replacement components for the detached at least one of a portion of the inner skirt, a portion of the transition, and a portion of the ring plate; and attaching the replacement ring to the nozzle ring at the joint surface using one of brazing or welding.
    Type: Grant
    Filed: February 15, 2022
    Date of Patent: October 3, 2023
    Assignee: CUMMINS INC.
    Inventors: Nikhil Doiphode, Todd M. Wieland
  • Apparatus, methods and systems for electrically heated particulate filter and SCR catalyst in vehicles
    Patent number: 11773761
    Abstract: The enclosed disclosure relates to vehicle systems in which an engine, a particulate filter fluidly coupled with the engine, a selective catalytic reduction (SCR) system fluidly coupled with the engine downstream of the particulate filter, an electrical heating device implemented with the particulate filter, and a controller operatively coupled with the engine and the electrical heating device, are implemented. The controller can detect, when the engine is turned off, a condition for turning on the engine, detect a temperature of the particulate filter of the SCR system, activate the electrical heating device in response to the detected temperature being below a lower temperature threshold, and turn on the engine in response to the detected temperature being at or above the lower temperature threshold.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: October 3, 2023
    Assignee: CUMMINS INC.
    Inventors: Jinyong Luo, Xiaobo Song, Colin L. Norris, Xing Jin, Matthew L. Anderson, Ying Yuan
  • Systems and methods for controlling cylinder deactivation operation in electrified powertrains
    Patent number: 11767797
    Abstract: At least some embodiments of the present disclosure are directed to systems and methods for controlling a cylinder deactivation (CDA) operation for an electrified powertrain, the electrified powertrain comprising an engine and an additional power source, the engine having a plurality of cylinders. The method includes the step of operating the electrified powertrain in a CDA mode and deactivating one or more selected cylinders of the plurality of cylinders; receiving measurement data indicative of operating conditions of the electrified powertrain; analyzing the measurement data to determine whether a predetermined operating condition is met; and adjusting the CDA operation by adjusting the duration of the CDA operation or changing a number of deactivated cylinders.
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: September 26, 2023
    Assignee: CUMMINS INC.
    Inventors: Anant Puri, J. Steven Kolhouse, Apurva A. Chunodkar
  • INCREASE AFTERTREATMENT TEMPERATURE DURING LIGHT LOAD OPERATION
    Publication number: 20230296041
    Abstract: A method includes: receiving an inlet temperature of a selective catalytic reduction system; comparing the inlet temperature to a temperature setpoint; and adjusting at least one of a first exhaust manifold pressure setpoint for a first cylinder bank of an engine or a second exhaust manifold pressure setpoint for a second cylinder bank of the engine, based on the comparison.
    Type: Application
    Filed: May 24, 2023
    Publication date: September 21, 2023
    Applicant: CUMMINS INC.
    Inventors: Travis Alva Anderson, Joan M. Wills, Rajkumar Subramanian, Vaibhav Daramwar, Pagalavan Mathari Bakthavatsalam, Paul Daniel Borisuk
  • Modular electromagnetic interference filter inductor core
    Patent number: 11764748
    Abstract: Disclosed are designs for inductor cores for electromagnetic interference (EMI) filters. In some embodiments, an inductor core comprises a plurality of enclosed structures, where each enclosed structure of the plurality of enclosed structures includes a plurality of elongated bars and at least one connection device. In some embodiments, an enclosed structure is configured to encompass a signal bus. In some embodiments, an enclosed structure has a longitudinal axis and a triangular cross-sectional shape taken perpendicular to the longitudinal axis.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: September 19, 2023
    Assignee: CUMMINS INC.
    Inventors: Veda Samhitha Duppalli, Santhosh Krishnamoorthi, Sanchit Mishra, Jaroslaw Leonarski, Subbarao Dakshina Murthy-Bellur
  • Exhaust gas and reductant mixer for an aftertreatment system
    Patent number: 11761365
    Abstract: Apparatus and method for mixing reductant in an exhaust gas flow using virtual interception. Embodiments include an exhaust gas and reductant mixer comprising a body, a first flow device, and a reductant entry port. The body defines an exhaust gas flow path having a central portion. The first flow device swirls the exhaust gas in a circumferential direction with respect to the gas flow path. The reductant entry port introduces the reductant into the gas flow path at a location downstream from the first flow device and in an introduction direction (1) offset from the central portion, and (2) opposite the circumferential direction.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: September 19, 2023
    Assignee: CUMMINS INC.
    Inventors: Z. Gerald Liu, Apoorv Kalyankar, Niklas Schmidt, Achuth Mannannur
  • PREDICTING BATTERY STATE OF HEALTH
    Publication number: 20230288489
    Abstract: A system and method used to predict the state of health of a battery in a powertrain of a vehicle including a vehicle route profile generator arranged to generate a vehicle specific rout profile based on historical vehicle driving information, are disclosed. In one example, the system and method also include a powertrain model to convert the vehicle specific route profile to a predicted battery demand profile, and a state of health profile generator to generate a predicted state of health profile of the battery based on the predicted battery demand. In another example, the system further includes a vehicle performance manager arranged to generate a command to modify operation of the powertrain to extend battery life based on the vehicle specific route profile.
    Type: Application
    Filed: January 13, 2023
    Publication date: September 14, 2023
    Applicant: Cummins Inc.
    Inventors: Xing Jin, Ninad Ghike, Ruigang Zhang, Anant Puri, Richard A. Booth