Patents by Inventor Joshua Alan Lantz

Joshua Alan Lantz 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).

  • Diesel exhaust fluid doser protection during cold ambient temperature conditions using cylinder cutout methods
    Patent number: 11959410
    Abstract: A method includes determining that at least one diesel emissions fluid (DEF) doser of an exhaust aftertreatment system is likely frozen based on at least one of an ambient air temperature or a DEF source temperature; operating an engine in a cylinder cutout mode in response to the determination that the at least one DEF doser is likely frozen; and, discontinuing the cylinder cutout mode in response to determining that the at least one DEF doser is in a predefined condition.
    Type: Grant
    Filed: October 10, 2022
    Date of Patent: April 16, 2024
    Assignee: Cummins Inc.
    Inventors: Ankit Raghunath Lad, Joshua Alan Lantz, Vaibhav J. Lawand, Nicholas R. Lewis, Ian W. McGiffen, Arulkumaran Muthukumarasamy
  • DIESEL EXHAUST FLUID DOSER PROTECTION DURING COLD AMBIENT TEMPERATURE CONDITIONS USING CYLINDER CUTOUT METHODS
    Publication number: 20230031074
    Abstract: A method includes determining that at least one diesel emissions fluid (DEF) doser of an exhaust aftertreatment system is likely frozen based on at least one of an ambient air temperature or a DEF source temperature; operating an engine in a cylinder cutout mode in response to the determination that the at least one DEF doser is likely frozen; and, discontinuing the cylinder cutout mode in response to determining that the at least one DEF doser is in a predefined condition.
    Type: Application
    Filed: October 10, 2022
    Publication date: February 2, 2023
    Applicant: Cummins Inc.
    Inventors: Ankit Raghunath Lad, Joshua Alan Lantz, Vaibhav J. Lawand, Nicholas R. Lewis, Ian W. McGiffen, Arulkumaran Muthukumarasamy
  • Diesel exhaust fluid doser protection during cold ambient temperature conditions using cylinder cutout methods
    Patent number: 11466604
    Abstract: A system includes an exhaust aftertreatment system in exhaust gas receiving communication with an engine including a plurality of cylinders where the engine is structured to operate according to low load conditions and where a controller is structured to determine that at least one diesel emissions fluid (DEF) doser is frozen based on at least one of an ambient air temperature and a DEF source temperature. The controller is structured to operate the engine according to a skip-fire mode in response to a DEF flag indicating that the at least one DEF doser is frozen. The skip-fire mode comprises firing a portion of the plurality of cylinders that is less than a total amount of cylinders of the plurality of cylinders. The controller is structured to discontinue the skip-fire mode in response to determining that the at least one DEF doser is likely thawed.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: October 11, 2022
    Assignee: Cummins Inc.
    Inventors: Ankit Raghunath Lad, Joshua Alan Lantz, Vaibhav J. Lawand, Nicholas R. Lewis, Ian W. McGiffen, Arulkumaran Muthukumarasamy
  • DIESEL EXHAUST FLUID DOSER PROTECTION DURING COLD AMBIENT TEMPERATURE CONDITIONS USING CYLINDER CUTOUT METHODS
    Publication number: 20210404366
    Abstract: A system includes an exhaust aftertreatment system in exhaust gas receiving communication with an engine including a plurality of cylinders where the engine is structured to operate according to low load conditions and where a controller is structured to determine that at least one diesel emissions fluid (DEF) doser is frozen based on at least one of an ambient air temperature and a DEF source temperature. The controller is structured to operate the engine according to a skip-fire mode in response to a DEF flag indicating that the at least one DEF doser is frozen. The skip-fire mode comprises firing a portion of the plurality of cylinders that is less than a total amount of cylinders of the plurality of cylinders. The controller is structured to discontinue the skip-fire mode in response to determining that the at least one DEF doser is likely thawed.
    Type: Application
    Filed: September 10, 2021
    Publication date: December 30, 2021
    Inventors: Ankit Raghunath Lad, Joshua Alan Lantz, Vaibhav J. Lawand, Nicholas R. Lewis, Ian W. McGiffen, Arulkumaran Muthukumarasamy