Patents by Inventor Manik Narula

Manik Narula has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20250026351
    Abstract: A method includes receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and an exhaust gas characteristic. The method includes comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold, and comparing, by the controller, the exhaust gas characteristic to a characteristic threshold. The method includes, responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage or disengage to warm the aftertreatment system of the vehicle.
    Type: Application
    Filed: October 1, 2024
    Publication date: January 23, 2025
    Applicant: Cummins Inc.
    Inventors: Kristopher R. Bare, Kenneth M. Follen, Xing Jin, Jinyong Luo, Manik Narula, Andrew W. Osburn, Anant Puri, Xiaobo Song, Ying Yuan
  • 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: 12151668
    Abstract: A hybrid vehicle comprises an engine, an energy storage device, and an aftertreatment system comprising a SCR catalyst configured to treat constituents of an exhaust gas. A controller is operatively coupled to the engine, the energy storage device, and the after treatment system, and configured to estimate an exhaust gas temperature and flow rate of the exhaust gas based on a set of engine operating parameters. The controller determines an exhaust gas cooling rate based on the exhaust gas temperature, flow rate, and a SCR catalyst temperature, and an ambient cooling rate based on an ambient temperature, a vehicle speed and the catalyst temperature. The controller determines a SCR catalyst temperature change rate based on the exhaust gas and ambient cooling rates, and adjusts a load distribution between the engine and the energy storage device based on the SCR catalyst temperature change rate.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: November 26, 2024
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Matthew K. Volmerding, Lu Qiu, Lars Krister Henrichsen, Ying Yuan, Jinyong Luo, Manik Narula
  • Patent number: 12128898
    Abstract: A method for managing emissions from a vehicle having an aftertreatment system is provided. The method includes: receiving, by a controller, information indicative of a temperature of an aftertreatment system of the vehicle and a power output of an engine of the vehicle; comparing, by the controller, the temperature of the aftertreatment system to a temperature threshold; comparing, by the controller, the power output to a power output threshold; and responsive to the comparisons, commanding, by the controller, an aftertreatment system heater to selectively engage and disengage to warm the aftertreatment system of the vehicle.
    Type: Grant
    Filed: June 2, 2021
    Date of Patent: October 29, 2024
    Assignee: Cummins Inc.
    Inventors: Kristopher R. Bare, Kenneth M. Follen, Xing Jin, Jinyong Luo, Manik Narula, Andrew W. Osburn, Anant Puri, Xiaobo Song, Ying Yuan
  • Patent number: 12085005
    Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to: while controlling the bypass valve to direct exhaust gas to 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; 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: Grant
    Filed: January 3, 2024
    Date of Patent: September 10, 2024
    Assignee: Cummins Inc.
    Inventors: Jinyong Luo, Xiaobo Song, Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Manik Narula, Lars K. Henrichsen
  • Publication number: 20240270232
    Abstract: Methods and systems for improving fuel economy and reducing emissions of a vehicle with an electric motor, an engine and an energy storage device are disclosed. The methods and systems involve obtaining lookahead information and current state information, wherein the lookahead information includes a predicted vehicle speed, and the current state information includes a current state of charge (SOC) for the energy storage device coupled to the electric motor; and determining, based on the lookahead information and the current state information, a target power split between the energy storage device and the engine.
    Type: Application
    Filed: April 10, 2024
    Publication date: August 15, 2024
    Inventors: Archit N. Koti, Rohinish Gupta, Xing Jin, Kenneth M. Follen, Arun Prakash Thunga Gopal, Manik Narula
  • Patent number: 11981319
    Abstract: Methods and systems for improving fuel economy and reducing emissions of a vehicle with an electric motor, an engine and an energy storage device are disclosed. The methods and systems involve obtaining lookahead information and current state information, wherein the lookahead information includes a predicted vehicle speed, and the current state information includes a current state of charge (SOC) for the energy storage device coupled to the electric motor; and determining, based on the lookahead information and the current state information, a target power split between the energy storage device and the engine.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: May 14, 2024
    Assignee: CUMMINS INC.
    Inventors: Archit N. Koti, Rohinish Gupta, Xing Jin, Kenneth M. Follen, Arun Prakash Thunga Gopal, Manik Narula
  • Publication number: 20240151174
    Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to: while controlling the bypass valve to direct exhaust gas to 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; 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: January 3, 2024
    Publication date: May 9, 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
  • Publication number: 20240097240
    Abstract: A cooling system for an electrified vehicle includes a first cooling loop for circulating coolant for cooling at least one of power electronics and a motor/generator of the vehicle. The first coolant loop includes a heat exchanger for exchanging heat with the coolant in the first cooling loop. A second cooling loop is provided for circulating coolant for cooling a battery of the vehicle. The second cooling loop includes a coolant chiller connected to a refrigeration system of the vehicle for exchanging heat in the coolant received from the battery with the refrigeration system of the vehicle.
    Type: Application
    Filed: November 15, 2023
    Publication date: March 21, 2024
    Inventors: Timothy C. Ernst, Jonathan A. Dickson, Manik Narula
  • Patent number: 11898483
    Abstract: A system includes a catalyst for receiving and treating exhaust gas generated by an engine, a passive NOx adsorber (PNA) positioned upstream of the catalyst, a bypass valve positioned upstream of the catalyst and the PNA, and a controller. The controller is configured to, determine that the catalyst is operating under cold start conditions, control the bypass valve to direct exhaust gas to the PNA, determine that the catalyst is no longer operating under cold start conditions and continue to control the bypass valve to direct exhaust gas to the PNA for a predetermined duration, and after the elapse of the predetermined duration, control the bypass valve to direct exhaust gas to the catalyst bypassing the PNA. The controller is also configured to detect a high transient torque demand while the exhaust gas is provided to the PNA, and split the torque demand between the engine and an electric motor.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: February 13, 2024
    Assignee: Cummins Inc.
    Inventors: Jinyong Luo, Xiaobo Song, Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Manik Narula, Lars K. Henrichsen
  • Publication number: 20240034300
    Abstract: A method includes determining, by a controller, that a transient event for a hybrid vehicle is occurring; determining, by the controller, an increase of power demand for the hybrid vehicle based on the determined transient event; directing, by the controller, an amount of power from an electric motor of the hybrid vehicle to a powertrain of the hybrid vehicle based on the increase in power demand, the amount of power from the electric motor determined based on at least one of a state of charge of a battery of the hybrid vehicle; and increasing, by the controller, an amount of power from an engine of the hybrid vehicle as a power output from the electric motor decays to avoid an engine power output spike from the engine based on the determined increase in power demand.
    Type: Application
    Filed: December 8, 2021
    Publication date: February 1, 2024
    Applicant: Cummins Inc.
    Inventors: Lu Qiu, David Schmidt, Yuying Song, Jinyong Luo, Ying Yuan, Manik Narula
  • Patent number: 11862779
    Abstract: A cooling system for an electrified vehicle includes a first cooling loop for circulating coolant for cooling at least one of power electronics and a motor/generator of the vehicle. The first coolant loop includes a heat exchanger for exchanging heat with the coolant in the first cooling loop. A second cooling loop is provided for circulating coolant for cooling a battery of the vehicle. The second cooling loop includes a coolant chiller connected to a refrigeration system of the vehicle for exchanging heat in the coolant received from the battery with the refrigeration system of the vehicle.
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: January 2, 2024
    Assignee: Cummins Inc.
    Inventors: Timothy C. Ernst, Jonathan A. Dickson, Manik Narula
  • Patent number: 11846222
    Abstract: Systems and methods for conditioning an aftertreatment system. For example, a computer-implemented method for conditioning an aftertreatment system of a hybrid system including an electric motor and a combustion engine includes: determining whether the aftertreatment system is in a first temperature zone below a first temperature threshold; determining whether a power demand corresponding to the operation of the hybrid system is in a first power demand zone below a power threshold; and if the aftertreatment system is determined to be in the first temperature zone and the power demand of the hybrid system is determined to be in the first power demand zone, setting the hybrid system to compressor mode to heat the aftertreatment system.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: December 19, 2023
    Assignee: CUMMINS INC.
    Inventors: Xing Jin, Lisa A. Orth-Farrell, Gary C. Salemme, Manik Narula
  • Patent number: 11833902
    Abstract: A vehicle system includes an engine, a transmission, a differential, and a waste heat recovery (WHR) drive that converts thermal energy into mechanical and electrical energy. The WHR drive can include a WHR power unit structured to convert thermal energy into rotation of a WHR drive shaft. A motor/generator having a motor/generator shaft can selectively operate as a motor or a generator. A mechanical linkage is structured to selectively link an output shaft to one of the WHR drive shaft and the motor/generator drive shaft independently of the other of the WHR drive shaft and the motor/generator drive shaft. The output shaft is selectively coupled to one of the engine, the transmission, or the differential. The vehicle system may also include a traction motor to provide drive to the vehicle. The output shaft can be selectively coupled to the traction motor or the engine.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: December 5, 2023
    Assignee: Cummins Inc.
    Inventors: Manik Narula, Timothy C. Ernst, Michael J. Ruth, Jonathan A. Dickson, J. Steven Kolhouse, Nimish Bagayatkar
  • Patent number: 11820359
    Abstract: A waste heat recovery (WHR) hybrid power system can be utilized in vehicles to convert heat energy into mechanical energy. The WHR system can include a WHR power unit structured to convert thermal energy into rotation of a WHR drive shaft. A motor/generator having a motor/generator shaft can selectively operate as a motor or a generator. A mechanical linkage can be structured to selectively link a output shaft to one of the WHR drive shaft and the motor/generator drive shaft independently of the other of the WHR drive shaft and the motor/generator drive shaft.
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: November 21, 2023
    Assignee: Cummins Inc.
    Inventors: Manik Narula, Timothy C. Ernst, Michael J. Ruth, Jonathan A. Dickson, J. Steven Kolhouse, Nimish Bagayatkar
  • Publication number: 20230365120
    Abstract: The present disclosures relate to methods and systems for a hybrid powertrain. The hybrid powertrain system includes an integrated axle configured to provide mechanical power to a first pair of wheels, the integrated axle comprising a first motor-generator and a first drive axle such that the first motor-generator and at least a portion of the first drive axle are mechanically coupled to a common housing. The system also includes a second motor-generator configured to be mechanically coupled with an engine via a first clutch and mechanically coupled with a second drive axle via a second clutch, the second drive axle mechanically coupled with a second pair of wheels. A controller is electrically coupled with the first and second motor-generators, the engine, and the first and second clutches, the controller configured to enable a fully electric mode, a series hybrid mode, a parallel hybrid mode, and a regenerative mode of operation.
    Type: Application
    Filed: May 25, 2021
    Publication date: November 16, 2023
    Inventors: Kesavan Ramakrishnan, Manik Narula
  • Publication number: 20230311846
    Abstract: Systems and methods for controlling a hybrid system. For example, a computer-implemented method includes determining a system temperature zone of the aftertreatment system as being in: a first temperature zone below a first temperature threshold, a second temperature zone from the first temperature threshold to a second temperature threshold, or a third temperature zone above the second temperature threshold; determining a power demand corresponding to the operation of the hybrid system as being in: a first power demand zone if the power demand is below a power threshold, or a second power demand zone if the power demand is equal to or greater than the power threshold; and determining a control strategy based at least in part on the determined system temperature zone and the determined power demand.
    Type: Application
    Filed: July 20, 2021
    Publication date: October 5, 2023
    Inventors: Xing Jin, David Schmidt, Lu Qiu, Lisa A. Orth-Farrell, Ying Yuan, Jinyong Luo, Manik Narula
  • Patent number: 11718298
    Abstract: The enclosed disclosure relates to hybrid vehicles and systems with an engine, a drivetrain with a clutch and a transmission, an electric machine, and a controller. The controller receives lookahead information within a lookahead window and present state information of the hybrid vehicle. The controller determines a predicted coasting opportunity exceeding a predetermined threshold within the lookahead window and determines a cruise control reference speed, a power split between the engine and the electric machine, and a timing of enabling engine-off coasting during the coasting opportunity. The controller deactivates the engine and disengages the clutch at a start of the coasting opportunity when the engine-off coasting is enabled.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: August 8, 2023
    Assignee: Cummins Inc.
    Inventors: Rohinish Gupta, Jonathan A. Dickson, Kenneth M. Follen, Apurva Arvind Chunodkar, Arun Prakash Thunga Gopal, Manik Narula
  • Publication number: 20230150502
    Abstract: Systems, methods, and apparatuses for improving predictive cruise control and predictive engine off coasting for a vehicle are provided. An apparatus includes one or more processing circuits having one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to: receive look ahead information and store the look ahead information in the one or more memory devices; receive vehicle information regarding operation of a vehicle including an engine; determine a coasting opportunity for the vehicle based on the look ahead information and the vehicle information; modulate a cruise control set speed based on the determined coasting opportunity; and turn the engine off during the determined coasting opportunity for the vehicle based on modulation of the cruise control set speed.
    Type: Application
    Filed: November 10, 2022
    Publication date: May 18, 2023
    Applicant: Cummins Inc.
    Inventors: Jonathan A. Dickson, Kenneth M. Follen, Arun Prakash Thunga Gopal, J. Steven Kolhouse, Manik Narula, Apurva Arvind Chunodkar
  • Publication number: 20230082857
    Abstract: Systems and methods for conditioning an aftertreatment system. For example, a computer-implemented method for conditioning an aftertreatment system of a hybrid system including an electric motor and a combustion engine includes: determining whether the aftertreatment system is in a first temperature zone below a first temperature threshold; determining whether a power demand corresponding to the operation of the hybrid system is in a first power demand zone below a power threshold; and if the aftertreatment system is determined to be in the first temperature zone and the power demand of the hybrid system is determined to be in the first power demand zone, setting the hybrid system to compressor mode to heat the aftertreatment system.
    Type: Application
    Filed: January 29, 2021
    Publication date: March 16, 2023
    Inventors: Xing Jin, Lisa A. Orth-Farrell, Gary C. Salemme, Manik Narula