Patents by Inventor Daniel C. Bitsis, JR.

Daniel C. Bitsis, JR. 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).

  • Method of generating rate-of-injection (ROI) profiles for a fuel injector and system implementing same
    Patent number: 11454183
    Abstract: A method of generating an ROI profile for a fuel injector using machine learning and a constrained/limited training data set is disclosed. The method includes receiving a first plurality of measurement sets for a fuel injector when operating at a first target set point. Preferably, at least two measurement sets of the first plurality of measurement sets are selected to generate a first averaged ROI profile for the first target condition. The at least two selected measurement sets are then used to train a machine learning model that can output a predicted ROI profile for a fuel injector based on a desired pressure value and/or desired mass flow rate value. Training of the machine learning model preferably includes a predetermined number of iterations that induces overfitting within the model/neural network.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: September 27, 2022
    Assignee: SOUTHWEST RESEARCH INSTITUTE
    Inventors: Khanh D. Cung, Zachary L. Williams, Ahmed A. Moiz, Daniel C. Bitsis, Jr.
  • Regeneration of automotive exhaust aftertreatment device using diverted boost air during deceleration
    Patent number: 10781737
    Abstract: A method, used with an internal combustion engine, of providing fresh air for regeneration of an exhaust aftertreatment device. An air intake diversion line is installed from a point between the throttle and the compressor to a point upstream of the exhaust aftertreatment device. A valve on this diversion line is normally closed. If the engine temperature is above a certain threshold and if the engine is in a “high load deceleration” state, the valve is opened, which diverts fresh air to the exhaust aftertreatment device. The valve is then closed after the pressure in the intake line is relieved.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: September 22, 2020
    Assignee: Southwest Research Institute
    Inventor: Daniel C. Bitsis, Jr.
  • Regeneration of Automotive Exhaust Aftertreatment Device Using Diverted Boost Air During Deceleration
    Publication number: 20200291842
    Abstract: A method, used with an internal combustion engine, of providing fresh air for regeneration of an exhaust aftertreatment device. An air intake diversion line is installed from a point between the throttle and the compressor to a point upstream of the exhaust aftertreatment device. A valve on this diversion line is normally closed. If the engine temperature is above a certain threshold and if the engine is in a “high load deceleration” state, the valve is opened, which diverts fresh air to the exhaust aftertreatment device. The valve is then closed after the pressure in the intake line is relieved.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 17, 2020
    Inventor: Daniel C. Bitsis, JR.