Patents by Inventor Justin R. Lee

Justin R. Lee 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).

  • Optimizing combustion recipes to improve engine performance and emissions for variable displacement engines
    Patent number: 11619187
    Abstract: A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a combustion recipe is ascertained and used operating the cylinders of the variable displacement internal combustion engine to generate the desired torque output. The recipe is preferably optimized for the engine operating at the second firing fraction, at least relative to the previous charge of the previous combustion recipe used with the first firing fraction.
    Type: Grant
    Filed: April 6, 2022
    Date of Patent: April 4, 2023
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Louis J. Serrano, Xiaoping Cai, Shikui Kevin Chen, Benjamin M. Wolk, Avra Brahma, Justin R. Lee
  • OPTIMIZING COMBUSTION RECIPES TO IMPROVE ENGINE PERFORMANCE AND EMISSIONS FOR VARIABLE DISPLACEMENT ENGINES
    Publication number: 20220228538
    Abstract: A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a combustion recipe is ascertained and used operating the cylinders of the variable displacement internal combustion engine to generate the desired torque output. The recipe is preferably optimized for the engine operating at the second firing fraction, at least relative to the previous charge of the previous combustion recipe used with the first firing fraction.
    Type: Application
    Filed: April 6, 2022
    Publication date: July 21, 2022
    Inventors: Louis J. SERRANO, Xiaoping CAI, Shikui Kevin CHEN, Benjamin M. WOLK, Avra BRAHMA, Justin R. LEE
  • Optimizing combustion recipes to improve engine performance and emissions for variable displacement engines
    Patent number: 11326532
    Abstract: A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a combustion recipe is ascertained and used operating the cylinders of the variable displacement internal combustion engine to generate the desired torque output. The recipe is preferably optimized for the engine operating at the second firing fraction, at least relative to the previous charge of the previous combustion recipe used with the first firing fraction.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: May 10, 2022
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Louis J. Serrano, Xiaoping Cai, Shikui Kevin Chen, Benjamin M. Wolk, Avra Brahma, Justin R. Lee
  • Optimizing combustion recipes to improve engine performance and emissions for variable displacement engines
    Patent number: 11131259
    Abstract: A system and method for transitioning a firing fraction of a variable displacement internal combustion engine when generating a desired torque output. During and following the transition to the second firing fraction, a charge of a combustion recipe is ascertained and used operating the cylinders of the variable displacement internal combustion engine to generate the desired torque output. The charge is preferably optimized for the engine operating at the second firing fraction, at least relative to the previous charge of the previous combustion recipe used with the first firing fraction.
    Type: Grant
    Filed: December 11, 2020
    Date of Patent: September 28, 2021
    Assignees: Tula Technology, Inc., Cummins Inc.
    Inventors: Louis J. Serrano, Xiaoping Cai, Shikui Kevin Chen, Benjamin M. Wolk, Avra Brahma, Justin R. Lee