Patents Assigned to International Engine Intellectual Property Company, LLC
  • Patent number: 10690078
    Abstract: A system and method is provided for estimating engine exhaust nitrogen oxide sensor signal instability in transient conditions, for example when rapid changes occur in driver demanded torque, and for eliminating fluctuations in EONOx sensor signal status, in order to have more robust on-board diagnostics monitoring and exhaust nitrogen oxide control. The system and method predicts EONOx sensor signal instability by comparing a calculated pedal based driver demand torque delta to calculated instability thresholds and instability threshold hysteresis margins, and generates instability flags. The system and method further validates any predicted EONOx sensor signal instability by observation. Upon validation of the predicted EONOx sensor signal instability, the system and method latches the EONOx sensor signal status to a stable value.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: June 23, 2020
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Askin Minaz, Robert Manoni
  • Patent number: 10684196
    Abstract: A virtual diesel exhaust fluid (DEF) quality monitor repeatedly performs an intrusive test for disclosing use of adulterated DEF by injecting a controlled quantity of DEF into a diesel engine exhaust aftertreatment system upstream of an SCR catalyst while the engine operates and then processing certain data obtained from the test.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: June 16, 2020
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventors: Navtej Singh, Paul Boon Charintranond
  • Publication number: 20200173542
    Abstract: A system for conducting a rationality check of a transmission grade sensor includes a controller configured to calculate a change in elevation over time based on a change in barometric pressure. The controller calculates another change in elevation based on an average grade determined from a transmission grade sensor. The controller compares the second change in elevation to the first change in elevation and, if there is a significant discrepancy between them, calculates a grade correction factor. The controller then modifies the shift logic and/or shift schedule of the transmission based on the average grade from the transmission grade sensor and on the grade correction factor.
    Type: Application
    Filed: November 30, 2018
    Publication date: June 4, 2020
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Benjamin Edward Moeggenberg, David William Slessor, Ravi Rayala
  • Patent number: 10495026
    Abstract: A vehicle has a waste heat recovery (WHR) system and an engine. The WHR system includes a WHR working fluid circuit with a pump, a power turbine, and a condenser. An engine coolant circuit circulates coolant between the engine and an engine coolant heat exchanger/working fluid boiler in the WHR working fluid circuit. At least one exhaust gas heat exchanger/superheater in the WHR working fluid circuit receives waste heat from an exhaust circuit and/or from an exhaust gas recirculation circuit. A working fluid cooled charge air cooler in the WHR working fluid circuit receives waste heat from compressed charge air in a charge air intake circuit. A recuperator may transfer waste heat from working fluid passing from the power turbine to the condenser to working fluid passing from the working fluid cooled charge air cooler to the engine coolant heat exchanger/working fluid boiler.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 3, 2019
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventors: Shouhao Wu, Grzegorz Siuchta, Dean Oppermann
  • Patent number: 10494982
    Abstract: A system and method for dissipating vehicle under hood heat accumulated during stationary engine operation at high load or RPM and/or under high temperature ambient conditions is installed in a vehicle having an engine positioned within an engine compartment, and a cooling fan selectively driven by way of a fan clutch. The system includes a controller connected to the engine and to the fan clutch. The controller determines whether the period of stationary engine operation occurs at or above a threshold engine load or RPM, at or above a threshold engine operating temperature, at or above a threshold ambient temperature, and/or for or longer than a threshold stationary engine operation duration. If so, the at least one controller increases a low idle set point of the engine and commands the fan clutch to engage or remain engaged for a cool-down period following the period of stationary engine operation.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: December 3, 2019
    Assignee: International Engine Intellectual Property Company, LLC
    Inventor: Timothy M. Lyons
  • Patent number: 10487779
    Abstract: A device and method for preventing and removing piston deposit build-up on a piston cylinder assembly of an engine, including a diesel engine, is disclosed. A cylinder having an inner sleeve for receiving a piston, has a piston scraping ring positioned on the cylinder sleeve. The piston scraping ring includes an inner surface, and has a curved or hook shaped feature on its inner surface. The curved or hook shaped feature, named the ‘power groove’ for the purposes of this application, allows for reduced wear between the piston rings and the cylinder sleeve by reducing the pressure on the piston rings by expanding and reversing the flow of combustion gases. Additionally, this reversal of the combustion gases results in a decrease in blow-by gases passing between the piston rings and cylinder sleeve thereby improving sealing between the piston and the cylinder.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: November 26, 2019
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventor: John Lloyd Beasley
  • Patent number: 10414410
    Abstract: A system and method for adjusting engine settings and/or calibrations is based on engine and/or vehicle parameters, and/or environmental conditions, and is further based upon a forecasted drive cycle, forecasted driving condition, vehicle vocation, vehicle geographic location, vehicle load, type of operation, season of the year, vehicle system or subsystem condition and/or operation, and/or other factors. An engine of the vehicle has an ECU configured to store and implement an engine control map. At least one algorithm is operable to determine an engine control map specific to an engine operating parameter, a vehicle operating parameter, an environmental condition, and/or an expected range of settings and calibrations. At least one device is configured to wirelessly upload to the vehicle the specific engine control map, and then load or flash the specific engine control map to the ECU.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: September 17, 2019
    Assignee: International Engine Intellectual Property Company, LLC
    Inventor: Vishnu Vijayakumar
  • Patent number: 10384603
    Abstract: Disclosed herein are multiple embodiments of apparatus and method for providing an operator of a vehicle with output from at least one detector associated with the vehicle. According to one embodiment, at least one detector is operatively associated with a vehicle. At least one parameter of the vehicle is monitored with the at least one detector operatively associated with the vehicle. Output is generated with the at least one detector. The operator of the vehicle is provided with the output of the at least one detector such that operator distraction is not increased.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: August 20, 2019
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventor: Tom Lee Sorensen
  • Publication number: 20190152485
    Abstract: One embodiment is a system comprising an engine structured to output torque to an accessory drive, a rotary load structured to be selectably driven by the accessory drive, and an electronic control system. The electronic control system is operable to selectably engage and disengage the rotary load effective to vary the load on the engine, monitor engine load values in coordination with engagement of the rotary load, store a data set comprising the monitored engine load values in association with values of one or more associated system conditions in a non-transitory memory medium, update a mathematical model of the system stored in the non-transitory memory medium in response to the engine load values to converge one or more model parameters, diagnose or prognosticate a failure state of the rotary load in response to a change in the one or more model parameters, and output a perceptible diagnostic indication of the failure state in response to the diagnosis or prognostication.
    Type: Application
    Filed: November 17, 2017
    Publication date: May 23, 2019
    Applicants: Cummins Inc., International Engine Intellectual Property Company LLC
    Inventors: Vivek A. Sujan, Anthony J. Cook
  • Publication number: 20190049341
    Abstract: A virtual diesel exhaust fluid (DEF) quality monitor repeatedly performs an intrusive test for disclosing use of adulterated DEF by injecting a controlled quantity of DEF into a diesel engine exhaust aftertreatment system upstream of an SCR catalyst while the engine operates and then processing certain data obtained from the test.
    Type: Application
    Filed: January 30, 2018
    Publication date: February 14, 2019
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Navtej Singh, Paul Boon Charintranond
  • Publication number: 20190040780
    Abstract: A variable geometry mixer for mixing reductant with engine exhaust includes at least one movable mixer blade or set of movable vanes. The variable geometry mixer is operable to extend the mixer blade(s) into the flow of exhaust under low exhaust flow conditions and to retract the mixer blade(s) out of the flow of exhaust under high exhaust flow conditions, or to increase the angle of the movable vanes under low exhaust flow conditions and to decrease the angle of the movable vanes under high exhaust flow conditions. The movable mixer blade(s) may adjoin at least one fixed geometry defining component. Control of the angle or position of the mixer blade(s) or movable vanes may be based on exhaust flow conditions, exhaust temperature, reductant dosing quantity, a particulate filter regeneration event, vehicle information, vehicle engine information, vehicle location, topographical information, and/or environmental information.
    Type: Application
    Filed: January 30, 2018
    Publication date: February 7, 2019
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Bradley Jay Adelman, Seth Ulrich Brenneman
  • Publication number: 20180372023
    Abstract: A vehicle has a waste heat recovery (WHR) system and an engine. The WHR system includes a WHR working fluid circuit with a pump, a power turbine, and a condenser. An engine coolant circuit circulates coolant between the engine and an engine coolant heat exchanger/working fluid boiler in the WHR working fluid circuit. At least one exhaust gas heat exchanger/superheater in the WHR working fluid circuit receives waste heat from an exhaust circuit and/or from an exhaust gas recirculation circuit. A working fluid cooled charge air cooler in the WHR working fluid circuit receives waste heat from compressed charge air in a charge air intake circuit. A recuperator may transfer waste heat from working fluid passing from the power turbine to the condenser to working fluid passing from the working fluid cooled charge air cooler to the engine coolant heat exchanger/working fluid boiler.
    Type: Application
    Filed: June 23, 2017
    Publication date: December 27, 2018
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Shouhao Wu, Grzegorz Siuchta, Dean Oppermann
  • Patent number: 10161329
    Abstract: A method for controlling operation of an internal combustion engine determines an estimated NOx value as a function of at least one engine operating parameter. The method also determines an actual NOx value using a NOx sensor positioned in an exhaust gas stream of the internal combustion engine. The method detects at least one condition indicative of whether or not the actual NOx value is accurate. The actual NOx value is used for controlling engine operation when the at least one condition indicates that the actual NOx value is accurate, while the estimated NOx value is used for controlling engine operation when the at least one condition indicates that the actual NOx value is inaccurate.
    Type: Grant
    Filed: May 25, 2013
    Date of Patent: December 25, 2018
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Adam C. Lack, Navtej Singh, Michael James Miller
  • Patent number: 10132318
    Abstract: A method of controlling a variable geometry turbocharger is provided. A predefined desired boost pressure of a turbocharger is obtained from a memory. A predefined desired mass flow rate in an intake manifold of an engine is obtained from the memory. A theoretical amount of power required by the turbocharger to generate the desired boost pressure and the desired mass flow rate is calculated. An actual mass flow rate in the intake manifold is determined. An actual amount of power required by the turbocharger to generate the desired boost pressure and the actual mass flow rate is calculated. At least one adjustable vane of the turbine of the turbocharger is adjusted to allow the theoretical amount of power required of the turbocharger to generally equal the actual amount of power by adjusting the boost pressure.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: November 20, 2018
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventors: Matthew Joseph Seiberlich, James Rynold Popp, Sean Christopher Wyatt, Michael James McNulty, Jose Antonio Rodriguez, Jeremy Grant Schipper
  • Publication number: 20180266359
    Abstract: A device and method for preventing and removing piston deposit build-up on a piston cylinder assembly of an engine, including a diesel engine, is disclosed. A cylinder having an inner sleeve for receiving a piston, has a piston scraping ring positioned on the cylinder sleeve. The piston scraping ring includes an inner surface, and has a curved or hook shaped feature on its inner surface. The curved or hook shaped feature, named the ‘power groove’ for the purposes of this application, allows for reduced wear between the piston rings and the cylinder sleeve by reducing the pressure on the piston rings by expanding and reversing the flow of combustion gases. Additionally, this reversal of the combustion gases results in a decrease in blow-by gases passing between the piston rings and cylinder sleeve thereby improving sealing between the piston and the cylinder.
    Type: Application
    Filed: March 20, 2017
    Publication date: September 20, 2018
    Applicant: International Engine Intellectual Property Company, LLC
    Inventor: John Lloyd Beasley
  • Patent number: 10067045
    Abstract: A method for determining the degree of saturation of a solid ammonia storage material in a storage unit includes activating a heater to release ammonia from the storage material until the pressure of the storage unit reaches a predetermined pressure. The method then deactivates the heater and determining a decay rate of the pressure of the storage unit while the heater is deactivated. The method estimates the degree of saturation of the ammonia storage medium in response to the decay rate. According to some embodiments, determining the decay rate may include measuring the time required for the pressure of the storage unit to drop from a first pressure threshold to a second pressure threshold.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: September 4, 2018
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventors: Adam C Lack, Navtej Singh, Michael James Miller
  • Patent number: 10060427
    Abstract: A controller for a vehicle pneumatic system loads a compressor responsive to engine power absorption by the engine and air storage facility air pressure readings up to a pressure limit. The controller is responds to power demand on the engine in excess of an engine speed related global maximum and air pressure readings down to a global minimum for unloading the compressor. The controller provides for loading and unloading the compressor to maintain storage facility pressure within an operating maximum and an operating minimum which lie between the global maximum and global minimum pressures. The controller responds to air pressure readings reaching or falling below the global minimum for loading the compressor and to air pressure readings reaching or exceeding the global maximum for unloading the compressor.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: August 28, 2018
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventors: Grzegorz Siuchta, Dean Alan Oppermann, Raul Espinosa
  • Patent number: 10005466
    Abstract: A control strategy for a vehicle powered by an internal combustion engine has a repeating cycle of accelerating the vehicle during a more fuel efficient acceleration phase of the cycle followed by a deceleration phase of the cycle which uses little or no fuel.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: June 26, 2018
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventors: Shouhao Wu, Grzegorz Siuchta
  • Publication number: 20180174373
    Abstract: A synthetics rules creation processor or portal recognizes correlations between vehicle data and conditions, corporate knowledge and memory, company proprietary information, vehicle location, customer reported symptoms, and vehicle electronic control module fault codes. The synthetics rule creation processor or portal generates synthetic rules based on the correlations. A synthetic fault processor or synthetics engine compares current vehicle data and conditions, vehicle location, customer reported symptoms, and fault codes against the synthetic rules. The fault processor or synthetics engine generates synthetic fault codes based upon matching comparisons. The at least one synthetic fault code, along with an action plan, thereafter becomes part of a vehicle health report.
    Type: Application
    Filed: May 10, 2017
    Publication date: June 21, 2018
    Applicant: International Engine Intellectual Property Company , LLC
    Inventors: Richard Hansen, Christopher Lappa, Dominic Vito Venice
  • Patent number: 9995209
    Abstract: A rotary engine has a circular shaped rotor and stator. The rotor has an expansion chamber for combustion and the stator has thrust director gate that passes through a passageway through the stator face to alternatively ride along the face of the rotor or to ride within the expansion chamber of the rotor. Passageways through the stator and radially close to the thrust director gate allow for air, fuel, and an ignition source to pass through the stator allow for ignition and expansion of the fuel within the expansion chamber. The thrust director allows for thrust to be applied to the rotor to rotate the rotor. An exhaust manifold, also passing through stator, and also radially aligned with the expansion chamber allows exhaust gases from combustion to be released from the expansion chamber as the rotor rotates the expansion chamber adjacent to the exhaust manifold.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: June 12, 2018
    Assignee: International Engine Intellectual Property Company, LLC
    Inventor: Gerald L. Larson