Patents by Inventor Oussama Rouis

Oussama Rouis 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: 8996211
    Abstract: A method for controlling regenerative braking of an automobile micro-hybrid system is disclosed. The system includes at least a rotary electrical machine and an electrochemical battery. The method includes a step, when the electrochemical battery has a first predetermined energy state, which corresponds to an initial optimum charging state, of commanding a reduction of the first energy state, to a second energy state corresponding to an intermediate charging state, so as to make a charging capacity available in the electrochemical battery during a subsequent opportunity for recovery of electrical energy during, for example, a braking phase of the vehicle.
    Type: Grant
    Filed: October 5, 2009
    Date of Patent: March 31, 2015
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Ertugrul Taspinar, Daniel Benchetrite, Paul-Eric Chupin, Oussama Rouis, Cyrille Corniglion, Jean-Fran├žois Duguey, Ryadh Ben Omrane, Hajar Hercouet, Benoit Soucaze-Guillous
  • Patent number: 8791590
    Abstract: Described is a micro-hybrid system for an automobile including: 1) a rotating electrical machine (i.e., a starter/alternator); 2) at least one power converter connectable to an electricity distribution network of the automobile, this network including a power storage unit; and, 3) a control circuit capable of controlling the power converter to provide a power supply current to the electricity distribution network.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: July 29, 2014
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Oussama Rouis, Daniel Benchetrite, Arnaud De Vries, Jean-Claude Matt
  • Patent number: 8674633
    Abstract: A method and device for controlling the starting time of a vehicle mounted thermal engine coupled mechanically to a polyphase rotary electrical machine with an inductor. The electrical machine includes phase windings and sensors for the position of a rotor, and is connected to an on-board electrical network. The method uses pre-fluxing by establishing an excitation current in the inductor for a predetermined pre-fluxing time, before establishment of phase currents. These phase currents are controlled by signals phase-shifted by an angle which varies according to a speed of rotation of the electrical machine, relative to synchronization signals produced by the sensors. During the starting time, the angle of phase-shifting is additionally dependent on a voltage of the on-board electrical network, in a range contained between a first and second voltages, with the second voltage being higher than the first. In the method, the starting time is independent from the voltage of the on-board electrical network.
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 18, 2014
    Assignee: Valeo Equipements Electriques Moteur
    Inventor: Oussama Rouis
  • Patent number: 8587229
    Abstract: A method for braking the thermal engine of an automobile using a multiple-phase rotary electric machine (1) connected to the thermal engine and including a stator and a rotor (4) having at least one excitation winding (41). A shortcut of at least one phase of the multiple-phase rotary machine is included during the stop phase of the thermal engine. The multiple-phase rotary electric machine is capable of braking the thermal engine of an automobile during the stop phase thereof due to the fact that a shortcut is induced, during the stop phase of the thermal engine, of at least one of the phases thereof.
    Type: Grant
    Filed: June 24, 2008
    Date of Patent: November 19, 2013
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Farouk Boudjemai, Jean-Marc Dubus, Oussama Rouis, Sylvain Delion, Khadija Elbaraka, Jean-Claude Matt
  • Patent number: 8497588
    Abstract: The invention relates to a method for controlling a reversible electrical machine (14) coupled to a heat engine (13). The electrical machine comprises a field winding (20) which is fed by an excitation current and an armature comprising a plurality of phase windings (22) fed by phase currents. According to the invention, the excitation current of the electrical machine is controlled according to the instantaneous rotational speed of the machine and the torque of the heat engine. According to other characteristics, the excitation current is equal to a pre-determined nominal current when the torque of the engine is resistant and the instantaneous speed is slower than a first pre-determined rotational speed, and is weaker than the nominal current when the torque of the engine is driving or the instantaneous speed is faster than the first speed.
    Type: Grant
    Filed: May 3, 2007
    Date of Patent: July 30, 2013
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Hugues Doffin, Oussama Rouis, Julien Masfaraud
  • Patent number: 8475328
    Abstract: The micro-hybrid system for a transport vehicle comprises a rotary electric machine suitable for being coupled mechanically to an engine of the vehicle, an AC-to-DC converter, a DC-to-DC converter, first and second electrical energy reservoirs suitable for storing an electrical energy produced by the rotary machine and for returning the electrical energy to consumer devices equipping the vehicle, and a controller for controlling the operation of the micro-hybrid system. The controller comprises piloting strategies module suitable for autonomously piloting the operating modes of the micro-hybrid system according to a plurality of strategies depending on information provided to said piloting means regarding an internal state of the micro-hybrid system and of a state of the vehicle.
    Type: Grant
    Filed: May 4, 2007
    Date of Patent: July 2, 2013
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Oussama Rouis, Farouk Boudjemai, Brice Lecole, Julien Masfaraud, Magali Laurence, Mattieu Treguer, Hugues Doffin, Cedric Leboeuf, Ertugrul Taspinar, Paul Armiroli, Alain Gerard, Jean-Marc Dubus, Arnaud De Vries, Eric Blanc
  • Patent number: 8401770
    Abstract: A method to permit a start time of a heat engine of a vehicle to be controlled. The heat engine is mechanically coupled to a polyphase rotary electrical machine connected to an on-board electrical network. The method is of the type consisting of carrying out pre-fluxing by establishing an excitation current in the inductor for a predetermined pre-fluxing time (Tpref) before the phase currents are established. In accordance with the method, the predetermined pre-fluxing time (Tpref) is a function of the voltage (Vbat+X) of the on-board electrical network. Typically, the predetermined pre-fluxing time (Tpref) is increased when the voltage (Vbat+X) of the on-board electrical network reduces within a nominal voltage range (V 1, V2).
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: March 19, 2013
    Assignee: Valeo Equipements Electriques Moteur
    Inventor: Oussama Rouis
  • Patent number: 8362630
    Abstract: A method for controlling a self-piloted alternator-starter for starting or restarting the thermal engine of an automobile. The alternator-starter includes a rotor rotating in a stator, and a belt for transmitting the torque of the alternator-starter rotor to the crankshaft of the thermal engine. The method includes a first preflux step during which the rotor winding is excited by a preflux electric current, and a second starting step during which the stator windings are excited. The preflux step lasts from 10 to 100 ms so that the transmission belt is tensioned below a degradation tension at the start of the second starting step.
    Type: Grant
    Filed: November 4, 2008
    Date of Patent: January 29, 2013
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Paul Armiroli, Oussama Rouis, Julien Quincerot
  • Patent number: 8117484
    Abstract: A method for the generation of binary signals (So1, So2, So3) which are out-of-phase with a control phase angle (?) which is continuously variable in relation to at least one synchronisation binary signal from a set of synchronisation binary signals (Si1, Si2, Si3) which have the same variable period, such as those creating rising and falling fronts of the out-of-phase signals (So1, So2, So3) by calculating at least one level switching time at least from rising or falling synchronisation fronts of the synchronisation binary signal (Si1, Si2, Si3) at least according to the control phase angle (?). According to the invention, at least one reference front is selected from the synchronisation fronts such that the time is as short as possible.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: February 14, 2012
    Assignee: Valeo Equipements Electriques Moteur
    Inventor: Oussama Rouis
  • Publication number: 20120022732
    Abstract: A method for controlling regenerative braking of an automobile micro-hybrid system is disclosed. The system includes at least a rotary electrical machine and an electrochemical battery. The method includes a step, when the electrochemical battery has a first predetermined energy state, which corresponds to an initial optimum charging state, of commanding a reduction of the first energy state, to a second energy state corresponding to an intermediate charging state, so as to make a charging capacity available in the electrochemical battery during a subsequent opportunity for recovery of electrical energy during, for example, a braking phase of the vehicle.
    Type: Application
    Filed: October 5, 2009
    Publication date: January 26, 2012
    Inventors: Ertugrul Taspinar, Daniel Benchetrite, Paul-Eric Chupin, Oussama Rouis, Cyrille Corniglion, Jean-Fran├žois Duguey, Ryadh Ben Omrane, Hajar Hercouet, Benoit Soucaze-Guillous
  • Patent number: 8076895
    Abstract: A method wherein the signals (SW1, Sw2, Sw3) controlling the power supply (10) of the phase windings (4) of the motor consist of signals (So1, So2, So3) that are out-of-phase by a phase angle (f) which is continuously variable in relation to synchronization signals (Si1, Si2, Si3) generated by sensors (1) detecting the position of the rotor. According to the method, a processing unit (5) comprises inlets (8) for receiving the synchronization signals and outlets (6, 7) for transmitting the out-of-phase signals. The synchronization signals are binary signals presenting synchronization fronts and the rising and falling fronts of the out-of-phase signals are generated, following a level switching time depending at least on the phase angle, from at least one reference front selected from the synchronization fronts such that the switching time is minimum.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 13, 2011
    Assignee: Valeo Equipment Electriques Moteur
    Inventor: Oussama Rouis
  • Publication number: 20110227410
    Abstract: Described is a micro-hybrid system for an automobile including: 1)a rotating electrical machine (i.e., a starter/alternator); 2) at least one power converter connectable to an electricity distribution network of the automobile, this network including a power storage unit; and, 3)a control circuit capable of controlling the power converter to provide a power supply current to the electricity distribution network.
    Type: Application
    Filed: July 8, 2009
    Publication date: September 22, 2011
    Inventors: Oussama Rouis, Daniel Benchetrite, Arnaud De Vries, Jean-Claude Matt
  • Publication number: 20110227341
    Abstract: A method and device for controlling the starting time of a vehicle mounted thermal engine coupled mechanically to a polyphase rotary electrical machine with an inductor. The electrical machine includes phase windings and sensors for the position of a rotor, and is connected to an on-board electrical network. The method uses pre-fluxing by establishing an excitation current in the inductor for a predetermined pre-fluxing time, before establishment of phase currents. These phase currents are controlled by signals phase-shifted by an angle which varies according to a speed of rotation of the electrical machine, relative to synchronisation signals produced by the sensors. During the starting time, the angle of phase-shifting is additionally dependent on a voltage of the on-board electrical network, in a range contained between a first and second voltages, with the second voltage being higher than the first. In the method, the starting time is independent from the voltage of the on-board electrical network.
    Type: Application
    Filed: July 9, 2009
    Publication date: September 22, 2011
    Inventor: Oussama Rouis
  • Publication number: 20100295300
    Abstract: The invention relates to a method for controlling a reversible electrical machine (14) coupled to a heat engine (13). The electrical machine comprises a field winding (18) which is fed by an excitation current and an armature comprising a plurality of phase windings (22) fed by phase currents. According to the invention, the excitation current of the electrical machine is controlled according to the instantaneous rotational speed of the machine and the torque of the heat engine. According to other characteristics, the excitation current is equal to a pre-determined nominal current when the torque of the engine is resistant and the instantaneous speed is slower than a first pre-determined rotational speed, and is weaker than the nominal current when the torque of the engine is driving or the instantaneous speed is faster than the first speed.
    Type: Application
    Filed: May 3, 2007
    Publication date: November 25, 2010
    Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR
    Inventors: Hugues Doffin, Oussama Rouis, Julien Masfaraud
  • Publication number: 20100298088
    Abstract: The micro-hybrid system for a transport vehicle comprises a rotary electric machine (10) suitable for being coupled mechanically to an engine (5) of the vehicle, an AC-to-DC converter (11), a DC-to-DC converter (13), first (12) and second (2) electrical energy reservoirs suitable for storing an electrical energy produced by the rotary machine and for restoring the latter for consumer devices equipping the vehicle, and control means (14) for controlling the operation of the micro-hybrid system. In accordance with the invention, the control means (14) comprise piloting means (140) suitable for autonomously piloting the operating modes of the micro-hybrid system according to a plurality of strategies according to at least their own knowledge of an internal state of the micro-hybrid system and of a state of the vehicle.
    Type: Application
    Filed: May 4, 2007
    Publication date: November 25, 2010
    Inventors: Oussama Rouis, Farouk Boudjemai, Brice Lecole, Julien Masfaraud, Magali Laurence, Matthieu Treguer, Hugues Doffin, Cedric Leboeuf, Ertugrul Taspinar, Paul Armiroli, Alain Gerard, Jean-Marc Dubus, Arnaud De Vries, Eric Blanc
  • Publication number: 20100283243
    Abstract: A method for controlling a self-piloted alternator-starter for starting or restarting the thermal engine of an automobile. The alternator-starter includes a rotor rotating in a stator, and a belt for transmitting the torque of the alternator-starter rotor to the crankshaft of the thermal engine. The method includes a first preflux step during which the rotor winding is excited by a preflux electric current, and a second starting step during which the stator windings are excited. The preflux step lasts from 10 to 100 ms so that the transmission belt is tensioned below a degradation tension at the start of the second starting step.
    Type: Application
    Filed: November 4, 2008
    Publication date: November 11, 2010
    Inventors: Paul Armiroli, Oussama Rouis, Julien Quincerot
  • Publication number: 20100244753
    Abstract: A method for braking the thermal engine of an automobile using a multiple-phase rotary electric machine (1) connected to the thermal engine and including a stator and a rotor (4) having at least one excitation winding (41). A shortcut of at least one phase of the multiple-phase rotary machine is included during the stop phase of the thermal engine. The multiple-phase rotary electric machine is capable of braking the thermal engine of an automobile during the stop phase thereof due to the fact that a shortcut is induced, during the stop phase of the thermal engine, of at least one of the phases thereof.
    Type: Application
    Filed: June 24, 2008
    Publication date: September 30, 2010
    Inventors: Farouk Boudjemai, Jean-Marc Dubus, Oussama Rouis, Sylvain Delion, Khadija Elbaraka, Jean-Claude Matt
  • Publication number: 20090310727
    Abstract: A method for the generation of binary signals (So1, So2, So3) which are out-of-phase with a control phase angle (?) which is continuously variable in relation to at least one synchronisation binary signal from a set of synchronisation binary signals (Si1, Si2, Si3) which have the same variable period, such as those creating rising and falling fronts of the out-of-phase signals (So1, So2, So3) by calculating at least one level switching time at least from rising or falling synchronisation fronts of the synchronisation binary signal (Si1, Si2, Si3) at least according to the control phase angle (?). According to the invention, at least one reference front is selected from the synchronisation fronts such that the time is as short as possible.
    Type: Application
    Filed: April 26, 2007
    Publication date: December 17, 2009
    Inventor: Oussama Rouis
  • Publication number: 20090295319
    Abstract: A method to permit the start time of a heat engine of a vehicle to be controlled. The heat engine is mechanically coupled to an induction type polyphase rotary electrical machine connected to an on-board electrical network. The method is of the type consisting of carrying out pre-fluxing by establishing an excitation current in the inductor for a predetermined pre-fluxing time (Tpref) before the phase currents are established. In accordance with the method, the predetermined pre-fluxing time (Tpref is a function of the voltage (Vbat+X) of the on-board electrical network. Typically, the predetermined pre-fluxing time (Tpref) is increased when the voltage (Vbat+X) of the on-board electrical network reduces within a nominal voltage range (V1, V2).
    Type: Application
    Filed: May 19, 2009
    Publication date: December 3, 2009
    Inventor: Oussama ROUIS
  • Publication number: 20090167221
    Abstract: A method wherein the signals (SW1,Sw2,Sw3) controlling the power supply (10) of the phase windings (4) of the motor consist of signals (So1,So2,So3) that are out-of-phase by a phase angle (f) which is continuously variable in relation to synchronisation signals (Si1,Si2,Si3) generated by sensors (1) detecting the position of the rotor. According to the method, a processing unit (5) comprises inlets (8) for receiving the synchronisation signals and outlets (6, 7) for transmitting the out-of-phase signals. The synchronisation signals are binary signals presenting synchronisation fronts and the rising and falling fronts of the out-of-phase signals are generated, following a level switching time depending at least on the phase angle, from at least one reference front selected from the synchronisation fronts such that the switching time is minimum.
    Type: Application
    Filed: April 27, 2007
    Publication date: July 2, 2009
    Inventor: Oussama Rouis