Patents by Inventor Mohamed Youssef

Mohamed 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).

  • Patent number: 7366605
    Abstract: A device and a method for controlling and/or regulating an internal combustion engine, in particular an internal combustion engine having direct injection. A regulation adjusts a combustion state variable, that characterizes the combustion state, to a setpoint value. A control and/or a regulation influences a torque variable that characterizes the torque of the internal combustion engine and/or the noise variable that characterizes the noise of the internal combustion engine, using a control variable.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: April 29, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Matthias Schueler, Michael Kessler, Mohamed Youssef, Arnold Engber, Axel Loeffler
  • Patent number: 7305872
    Abstract: In an internal combustion engine, a structure-borne noise generated in a combustion chamber is detected by a structure-borne noise sensor. A quantity is ascertained on the basis of the structure-borne noise signal. A reference quantity of an undrifted structure-borne noise sensor is ascertained for a certain reference operating state for the combustion chamber, during continuous operation of the engine the quantity is ascertained for the reference operating state, and from a change over time of the ascertained quantity with respect to the reference quantity, a drift of the structure-borne noise sensor is ascertained.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: December 11, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Matthias Schueler, Christian Mader, Mohamed Youssef, Christian Hugel
  • Patent number: 7269498
    Abstract: A device and a method for controlling an internal combustion engine, in particular a diesel engine, are described. Based on the signal from a structure-borne noise detector, parameters are determined which are used to regulate the internal combustion engine. At least one parameter is determined through an analysis that includes a filtering which selects at least two angular ranges.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: September 11, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Jens Damitz, Ruediger Fehrmann, Matthias Schueler, Michael Kessler, Mohamed Youssef, Vincent Dautel
  • Publication number: 20070137617
    Abstract: A method for controlling an internal combustion engine calculates the generated internal torque for each cylinder on the basis of the signal generated by an angle of rotation sensor for detecting the angle of rotation of the crankshaft, so that a rapid and precise regulation of the torque supplied by the internal combustion engine may be achieved.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 21, 2007
    Inventors: Matthias Schueler, Mohamed Youssef, Vincent Dautel
  • Publication number: 20070106449
    Abstract: A device and a method for controlling and/or regulating an internal combustion engine, in particular an internal combustion engine having direct injection. A regulation adjusts a combustion state variable, that characterizes the combustion state, to a setpoint value. A control and/or a regulation influences a torque variable that characterizes the torque of the internal combustion engine and/or the noise variable that characterizes the noise of the internal combustion engine, using a control variable.
    Type: Application
    Filed: October 20, 2006
    Publication date: May 10, 2007
    Inventors: Matthias Schueler, Michael Kessler, Mohamed Youssef, Arnold Engber, Axel Loeffler
  • Publication number: 20070106450
    Abstract: A method and a device for controlling an internal combustion engine, in which a noise variable is compared to a setpoint value, and an actuating variable is specified based on the comparison. The noise variable is computed using a weighted summation of at least two characteristics.
    Type: Application
    Filed: October 19, 2006
    Publication date: May 10, 2007
    Inventors: Jens Damitz, Michael Kessler, Mohamed Youssef, Arnold Engber
  • Publication number: 20070033997
    Abstract: In an internal combustion engine, a structure-borne noise generated in a combustion chamber is detected by a structure-borne noise sensor. A quantity is ascertained on the basis of the structure-borne noise signal. A reference quantity of an undrifted structure-borne noise sensor is ascertained for a certain reference operating state for the combustion chamber, during continuous operation of the engine the quantity is ascertained for the reference operating state, and from a change over time of the ascertained quantity with respect to the reference quantity, a drift of the structure-borne noise sensor is ascertained.
    Type: Application
    Filed: August 2, 2006
    Publication date: February 15, 2007
    Inventors: Matthias Schueler, Christian Mader, Mohamed Youssef, Christian Hugel
  • Publication number: 20060085119
    Abstract: A device and a method for controlling an internal combustion engine, in particular a diesel engine, are described. Based on the signal from a structure-borne noise detector, parameters are determined which are used to regulate the internal combustion engine. At least one parameter is determined through an analysis that includes a filtering which selects at least two angular ranges.
    Type: Application
    Filed: June 18, 2003
    Publication date: April 20, 2006
    Inventors: Jens Damitz, Ruediger Fehrmann, Matthias Schueler, Michael Kessler, Mohamed Youssef, Vincent Dautel
  • Patent number: 6964257
    Abstract: A method and device for controlling an internal combustion engine. A first variable is predefined on the basis of a signal of a combustion chamber pressure sensor or a structure-borne noise sensor. This first variable characterizes the combustion process in the combustion chamber of at least one cylinder of the engine. A second variable is read from a characteristics map; a manipulated variable for influencing the combustion process is predefinable from this second variable. The characteristics map and/or the second variable read from the characteristics map are adapted as a function of at least one feature which is determined on the basis of the first variable.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: November 15, 2005
    Assignee: Robert Bosch GmbH
    Inventors: Jens Damitz, Ruediger Fehrmann, Matthias Schueler, Michael Kessler, Mohamed Youssef, Tobias Kress
  • Publication number: 20050145214
    Abstract: A method and device for controlling an internal combustion engine. A first variable is predefined on the basis of a signal of a combustion chamber pressure sensor or a structure-borne noise sensor. This first variable characterizes the combustion process in the combustion chamber of at least one cylinder of the engine. A second variable is read from a characteristics map; a manipulated variable for influencing the combustion process is predefinable from this second variable. The characteristics map and/or the second variable read from the characteristics map are adapted as a function of at least one feature which is determined on the basis of the first variable.
    Type: Application
    Filed: December 21, 2004
    Publication date: July 7, 2005
    Inventors: Jens Damitz, Ruediger Fehrmann, Matthias Schueler, Michael Kessler, Mohamed Youssef, Tobias Kress
  • Patent number: 6878983
    Abstract: A varactor diode having a first electrode comprising a well region of a first conductivity type in a substrate, a second electrode comprising a first plurality of diffusion regions of a second conductivity type abutting isolation regions disposed in said well region, and a second plurality of diffusion regions of said first conductivity type extending laterally from portions of said first plurality of diffusion regions not adjacent said isolation regions and having a dopant concentration greater than that of said first plurality of diffusion regions. The varactor has a tunability of at least approximately 3.5 in a range of applied voltage between approximately 0V to 3V, an approximately linear change in capacitive value in a range of applied voltage between approximately 0V to 2V, and a Q of at least approximately 100 at a circuit operating frequency of approximately 2 GHz.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: April 12, 2005
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Stephen S. Furkay, Mohamed Youssef Hammad, Jeffrey B. Johnson
  • Patent number: 6803269
    Abstract: A varactor diode having a first electrode comprising a well region of a first conductivity type in a substrate, a second electrode comprising a first plurality of diffusion regions of a second conductivity type abutting isolation regions disposed in said well region, and a second plurality of diffusion regions of said first conductivity type extending laterally from portions of said first plurality of diffusion regions not adjacent said isolation regions and having a dopant concentration greater than that of said first plurality of diffusion regions. The varactor has a tunability of at least approximately 3.5 in a range of applied voltage between approximately 0V to 3V, an approximately linear change in capacitive value in a range of applied voltage between approximately 0V to 2V, and a Q of at least approximately 100 at a circuit operating frequency of approximately 2 GHz.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: October 12, 2004
    Assignee: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Stephen S. Furkay, Mohamed Youssef Hammad, Jeffrey B. Johnson
  • Publication number: 20040082124
    Abstract: A varactor diode having a first electrode comprising a well region of a first conductivity type in a substrate, a second electrode comprising a first plurality of diffusion regions of a second conductivity type abutting isolation regions disposed in said well region, and a second plurality of diffusion regions of said first conductivity type extending laterally from portions of said first plurality of diffusion regions not adjacent said isolation regions and having a dopant concentration greater than that of said first plurality of diffusion regions. The varactor has a tunability of at least approximately 3.5 in a range of applied voltage between approximately 0V to 3V, an approximately linear change in capacitive value in a range of applied voltage between approximately 0V to 2V, and a Q of at least approximately 100 at a circuit operating frequency of approximately 2 GHz.
    Type: Application
    Filed: December 4, 2003
    Publication date: April 29, 2004
    Applicant: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Stephen S. Furkay, Mohamed Youssef Hammad, Jeffrey B. Johnson
  • Publication number: 20040032004
    Abstract: A varactor diode having a first electrode comprising a well region of a first conductivity type in a substrate, a second electrode comprising a first plurality of diffusion regions of a second conductivity type abutting isolation regions disposed in said well region, and a second plurality of diffusion regions of said first conductivity type extending laterally from portions of said first plurality of diffusion regions not adjacent said isolation regions and having a dopant concentration greater than that of said first plurality of diffusion regions. The varactor has a tunability of at least approximately 3.5 in a range of applied voltage between approximately 0V to 3V, an approximately linear change in capacitive value in a range of applied voltage between approximately 0V to 2V, and a Q of at least approximately 100 at a circuit operating frequency of approximately 2 GHz.
    Type: Application
    Filed: August 14, 2002
    Publication date: February 19, 2004
    Applicant: International Business Machines Corporation
    Inventors: Douglas D. Coolbaugh, Stephen S. Furkay, Mohamed Youssef Hammad, Jeffrey B. Johnson