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: 8996211Abstract: 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: GrantFiled: October 5, 2009Date of Patent: March 31, 2015Assignee: Valeo Equipements Electriques MoteurInventors: Ertugrul Taspinar, Daniel Benchetrite, Paul-Eric Chupin, Oussama Rouis, Cyrille Corniglion, Jean-François Duguey, Ryadh Ben Omrane, Hajar Hercouet, Benoit Soucaze-Guillous
-
Patent number: 8791590Abstract: 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: GrantFiled: July 8, 2009Date of Patent: July 29, 2014Assignee: Valeo Equipements Electriques MoteurInventors: Oussama Rouis, Daniel Benchetrite, Arnaud De Vries, Jean-Claude Matt
-
Patent number: 8674633Abstract: 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: GrantFiled: July 9, 2009Date of Patent: March 18, 2014Assignee: Valeo Equipements Electriques MoteurInventor: Oussama Rouis
-
Patent number: 8587229Abstract: 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: GrantFiled: June 24, 2008Date of Patent: November 19, 2013Assignee: Valeo Equipements Electriques MoteurInventors: Farouk Boudjemai, Jean-Marc Dubus, Oussama Rouis, Sylvain Delion, Khadija Elbaraka, Jean-Claude Matt
-
Patent number: 8497588Abstract: 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: GrantFiled: May 3, 2007Date of Patent: July 30, 2013Assignee: Valeo Equipements Electriques MoteurInventors: Hugues Doffin, Oussama Rouis, Julien Masfaraud
-
Patent number: 8475328Abstract: 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: GrantFiled: May 4, 2007Date of Patent: July 2, 2013Assignee: Valeo Equipements Electriques MoteurInventors: 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: 8401770Abstract: 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: GrantFiled: May 19, 2009Date of Patent: March 19, 2013Assignee: Valeo Equipements Electriques MoteurInventor: Oussama Rouis
-
Patent number: 8362630Abstract: 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: GrantFiled: November 4, 2008Date of Patent: January 29, 2013Assignee: Valeo Equipements Electriques MoteurInventors: Paul Armiroli, Oussama Rouis, Julien Quincerot
-
Patent number: 8117484Abstract: 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: GrantFiled: April 26, 2007Date of Patent: February 14, 2012Assignee: Valeo Equipements Electriques MoteurInventor: Oussama Rouis
-
Publication number: 20120022732Abstract: 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: ApplicationFiled: October 5, 2009Publication date: January 26, 2012Inventors: Ertugrul Taspinar, Daniel Benchetrite, Paul-Eric Chupin, Oussama Rouis, Cyrille Corniglion, Jean-François Duguey, Ryadh Ben Omrane, Hajar Hercouet, Benoit Soucaze-Guillous
-
Patent number: 8076895Abstract: 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: GrantFiled: April 27, 2007Date of Patent: December 13, 2011Assignee: Valeo Equipment Electriques MoteurInventor: Oussama Rouis
-
Publication number: 20110227341Abstract: 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: ApplicationFiled: July 9, 2009Publication date: September 22, 2011Inventor: Oussama Rouis
-
Publication number: 20110227410Abstract: 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: ApplicationFiled: July 8, 2009Publication date: September 22, 2011Inventors: Oussama Rouis, Daniel Benchetrite, Arnaud De Vries, Jean-Claude Matt
-
Publication number: 20100295300Abstract: 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: ApplicationFiled: May 3, 2007Publication date: November 25, 2010Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEURInventors: Hugues Doffin, Oussama Rouis, Julien Masfaraud
-
Publication number: 20100298088Abstract: 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: ApplicationFiled: May 4, 2007Publication date: November 25, 2010Inventors: 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: 20100283243Abstract: 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: ApplicationFiled: November 4, 2008Publication date: November 11, 2010Inventors: Paul Armiroli, Oussama Rouis, Julien Quincerot
-
Publication number: 20100244753Abstract: 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: ApplicationFiled: June 24, 2008Publication date: September 30, 2010Inventors: Farouk Boudjemai, Jean-Marc Dubus, Oussama Rouis, Sylvain Delion, Khadija Elbaraka, Jean-Claude Matt
-
Publication number: 20090310727Abstract: 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: ApplicationFiled: April 26, 2007Publication date: December 17, 2009Inventor: Oussama Rouis
-
Publication number: 20090295319Abstract: 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: ApplicationFiled: May 19, 2009Publication date: December 3, 2009Inventor: Oussama ROUIS
-
Publication number: 20090167221Abstract: 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: ApplicationFiled: April 27, 2007Publication date: July 2, 2009Inventor: Oussama Rouis