Patents by Inventor Daniel Youssef

Daniel Youssef 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).

  • Methods and systems of compressor control with surge avoidance and response
    Patent number: 12241473
    Abstract: Methods and systems for surge control in a compressor system. A recirculation valve position may be actuated in response to identified conditions of potential surge, determined from a compressor map. Recirculation valve position may be controlled by calculating distance of current operating state to a surge line and using proportional integral control to manage the distance. Compressor speed command may be derated in response to identified surge, determined from one of speed fluctuations of the compressor speed, or variance of a compressor speed tracking error.
    Type: Grant
    Filed: October 27, 2023
    Date of Patent: March 4, 2025
    Assignee: Garrett Transportation I Inc.
    Inventors: Jaroslav Pekar, Daniel Youssef
  • METHODS AND SYSTEMS OF COMPRESSOR CONTROL WITH SURGE AVOIDANCE AND RESPONSE
    Publication number: 20250043796
    Abstract: Methods and systems for surge control in a compressor system. A recirculation valve position may be actuated in response to identified conditions of potential surge, determined from a compressor map. Recirculation valve position may be controlled by calculating distance of current operating state to a surge line and using proportional integral control to manage the distance. Compressor speed command may be derated in response to identified surge, determined from one of speed fluctuations of the compressor speed, or variance of a compressor speed tracking error.
    Type: Application
    Filed: October 27, 2023
    Publication date: February 6, 2025
    Inventors: Jaroslav Pekar, Daniel Youssef
  • ENERGY EFFICIENT PREDICTIVE POWER SPLIT FOR HYBRID POWERTRAINS
    Publication number: 20240227773
    Abstract: Methods and systems for operating a hybrid vehicle having a first power source that uses a rechargeable battery and a second power source that uses a fuel. Preview information relating to upcoming road and traffic is used to generate a speed reference. A transmission torque reference is calculated using the speed reference and upcoming road information. A predictive power split plan is then determined by optimizing use of the first and second power sources to satisfy the transmission torque reference. At least a first sample of the predictive power split plan is then implemented.
    Type: Application
    Filed: October 19, 2022
    Publication date: July 11, 2024
    Inventors: Martin Herceg, Matej Pcolka, Bohumil Hnilicka, Daniel Youssef, Kamil Dolinsky, Jaroslav Pekar, David Vosahlik
  • ENERGY EFFICIENT PREDICTIVE POWER SPLIT FOR HYBRID POWERTRAINS
    Publication number: 20240132047
    Abstract: Methods and systems for operating a hybrid vehicle having a first power source that uses a rechargeable battery and a second power source that uses a fuel. Preview information relating to upcoming road and traffic is used to generate a speed reference. A transmission torque reference is calculated using the speed reference and upcoming road information. A predictive power split plan is then determined by optimizing use of the first and second power sources to satisfy the transmission torque reference. At least a first sample of the predictive power split plan is then implemented.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 25, 2024
    Inventors: Martin Herceg, Matej Pcolka, Bohumil Hnilicka, Daniel Youssef, Kamil Dolinsky, Jaroslav Pekar, David Vosahlik