Patents by Inventor Toufic M Hijazi

Toufic M Hijazi 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).

  • Torque estimation of engine driven generator
    Patent number: 7797096
    Abstract: An engine control system for an engine that drives a generator includes a temperature sensor that generates a temperature signal and a control module that determines a generator torque based on an engine speed and a generator characteristic. The control module determines a torque correction factor based on the temperature signal and determines a corrected generator torque based on the generator torque and the torque correction factor. Various embodiments of the invention utilize engine speed, system voltages field winding duty cycle engine temperature, ambient temperature and/or generator current.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: September 14, 2010
    Inventors: Michael G. Reynolds, Chandra S. Namuduri, Toufic M Hijazi, Scott J. Chynoweth, Michael Livshiz
  • TORQUE ESTIMATION OF ENGINE DRIVEN GENERATOR
    Publication number: 20080054646
    Abstract: An engine control system for an engine that drives a generator includes a temperature sensor that generates a temperature signal and a control module that determines a generator torque based on an engine speed and a generator characteristic. The control module determines a torque correction factor based on the temperature signal and determines a corrected generator torque based on the generator torque and the torque correction factor. Various embodiments of the invention utilize engine speed, system voltages field winding duty cycle engine temperature, ambient temperature and/or generator current.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Inventors: Michael G. Reynolds, Chandra S. Namuduri, Toufic M. Hijazi, Scott J. Chynoweth, Michael Livshiz