Patents by Inventor Dave Hagner

Dave Hagner 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).

  • EGR system diagnostics
    Patent number: 11603811
    Abstract: Methods and systems are provided for diagnostics of exhaust gas recirculation (EGR) components including an EGR pressure sensor. In one example, a method may include comparing a current relationship between an output of the EGR pressure sensor and a manifold air pressure (MAP) and a pre-calibrated relation between the output of the EGR pressure sensor and the MAP to detect degradation of the EGR pressure sensor.
    Type: Grant
    Filed: May 18, 2021
    Date of Patent: March 14, 2023
    Assignee: Ford Global Technologies, LLC
    Inventors: Robert Jentz, Edward Doemer, Patrick Edward Smithberger, Sumanth Reddy Dadam, Sitaram Rejeti, Adam Krach, Dave Hagner
  • EGR SYSTEM DIAGNOSTICS
    Publication number: 20220372937
    Abstract: Methods and systems are provided for diagnostics of exhaust gas recirculation (EGR) components including an EGR pressure sensor. In one example, a method may include comparing a current relationship between an output of the EGR pressure sensor and a manifold air pressure (MAP) and a pre-calibrated relation between the output of the EGR pressure sensor and the MAP to detect degradation of the EGR pressure sensor.
    Type: Application
    Filed: May 18, 2021
    Publication date: November 24, 2022
    Inventors: Robert Jentz, Edward Doemer, Patrick Edward Smithberger, Sumanth Reddy Dadam, Sitaram Rejeti, Adam Krach, Dave Hagner
  • Methods and systems for an exhaust gas recirculation system
    Patent number: 11459964
    Abstract: Methods and systems are provided for a high-pressure exhaust gas recirculation system. In one example, the high-pressure exhaust gas recirculation system comprises pressure seconds arranged on different sides of a valve. The pressure sensors are used to regulate exhaust-gas recirculate flow without a fixed orifice delta pressure sensor.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: October 4, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Dave Hagner, Sumanth Dadam, Sitaram Rejeti, Edward Doemer, Robert Jentz, Patrick Edward Smithberger
  • METHODS AND SYSTEMS FOR AN EXHAUST GAS RECIRCULATION SYSTEM
    Publication number: 20220178319
    Abstract: Methods and systems are provided for a high-pressure exhaust gas recirculation system. In one example, the high-pressure exhaust gas recirculation system comprises pressure seconds arranged on different sides of a valve. The pressure sensors are used to regulate exhaust-gas recirculate flow without a fixed orifice delta pressure sensor.
    Type: Application
    Filed: December 7, 2020
    Publication date: June 9, 2022
    Inventors: Dave Hagner, Sumanth Dadam, Sitaram Rejeti, Edward Doemer, Robert Jentz, Patrick Edward Smithberger
  • Methods and systems for EGR system
    Patent number: 11274637
    Abstract: Methods and systems are provided for a high-pressure exhaust gas recirculation system. In one example, the high-pressure exhaust gas recirculation system comprises pressure sensors arranged on different sides of an EGR valve. Feedback from the pressure sensors are used to diagnose a EGR valve position sensor.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: March 15, 2022
    Assignee: Ford Global Technologies, LLC
    Inventors: Sitaram Rejeti, Sumanth Reddy Dadam, Edward Doemer, Robert Jentz, Dave Hagner