Patents by Inventor Julien Hobraiche
Julien Hobraiche 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).
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Patent number: 11371410Abstract: A pressure compensator for regulating the pressure in a bubble of liquid entirely enclosed in a forming volume of ice, atop which is a volume of gas, and which is contained in a reservoir closed by walls. The compensator includes a plunger formed of a head atop a body. The faces of the body of the plunger have a taper which is positive or zero in an essentially vertical, top to bottom direction.Type: GrantFiled: December 22, 2017Date of Patent: June 28, 2022Assignee: Plastic Omnium Advanced Innovation and ResearchInventors: Julien Hobraiche, Nicolas Le Clec'h, Thierry Leguay
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Publication number: 20190368405Abstract: A pressure compensator for regulating the pressure in a bubble of liquid entirely enclosed in a forming volume of ice, atop which is a volume of gas, and which is contained in a reservoir closed by walls. The compensator includes a plunger formed of a head atop a body. The faces of the body of the plunger have a taper which is positive or zero in an essentially vertical, top to bottom direction.Type: ApplicationFiled: December 22, 2017Publication date: December 5, 2019Applicant: Plastic Omnium Advanced Innovation and ResearchInventors: Julien HOBRAICHE, Nicolas LE CLEC'H, Thierry LEGUAY
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Publication number: 20140165936Abstract: The invention relates to a cam actuator (2) for actuating at least one valve (3) slidably mounted in a mounting (1), the device comprising a tappet (8) which is to be mounted on a free end of a stem (3a) of the valve and which is mobile relative to the mounting (1); and a resilient return means (9) for the tappet, which to urge the tappet (8) against the cam (2), characterised in that the device comprises an electromagnetic locking means including an electromagnetic actuator (22) having a coil (24), preferably outside the tappet (8), and at least one pin (12) subjected to the magnetic field of the actuator (22), such that supplying power to the coil (24) causes the selective movement of the pin (12) between a locked position, in which the tappet (8) is translatably linked to the valve (3), and an unlocked position, in which the tappet (8) freely slides on the stem (3a) of the valve.Type: ApplicationFiled: June 27, 2012Publication date: June 19, 2014Applicant: VALEO SYSTEMES DE CONTROLE MOTEURInventors: Nicolas Gelez, Julien Hobraiche, Gabriel Kopp
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Publication number: 20130306037Abstract: The invention relates to a device for controlling a heat engine, comprising a plurality of cylinders (1, 2, 3, 4), at least one of which (2, 3) is provided with at least two inlet valves (2a, 2b, 3a, 3b). According to the invention, the device comprises a control unit (5) arranged to deactivate said inlet valves in series.Type: ApplicationFiled: December 20, 2011Publication date: November 21, 2013Applicant: VALEO SYSTEMES DE CONTROLE MOTEURInventors: Nicolas Gelez, Julien Hobraiche
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Patent number: 8275537Abstract: The invention relates to a method for controlling a valve (13) in a thermal engine (10), the valve having a closed position and an opened position, the method comprising at least one step of opening the valve, said step including at least one phase (I) for bringing the valve into an open position and a phase (II) for maintaining the valve in an intermediate position between the closed position and the opened position. The invention also relates to a device for implementing this method and to a method for supplying an engine with an oxidant.Type: GrantFiled: May 28, 2008Date of Patent: September 25, 2012Assignee: Valeo Systemes de Controle MoteurInventors: Nicolas Gelez, Damien Fournigault, Jean-Guilhem Dalissier, Julien Hobraiche
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Patent number: 7923960Abstract: A method for driving a power bridge (1) which is used for controlling a multiphase electric load (3), is connectable to said electric load (3) through several arms and is drivable by switching functions determining control vectors for controlling the load, wherein said control vectors are subdivided into the free wheel control vectors and active control vectors. The inventive method is characterized in that it comprises the use of a switching function production method which produced a reduced number of switching function combinations corresponding to the free wheel control vectors for producing a sequence of the control vectors.Type: GrantFiled: December 5, 2006Date of Patent: April 12, 2011Assignee: Valeo Equipements Electriques MoteurInventors: Julien Hobraiche, Jean-Paul Vilain
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Patent number: 7880426Abstract: A method for driving a power bridge (1) which is used for controlling a multiphase electric load (3), connectable to said electric load (3) via several arms and drivable by switching functions which determine free wheel controlling vectors and are active for controlling the load. The inventive method consists in selecting a first switching function production method which produces a reduced number of combinations of switching functions corresponding to the free wheel control vectors or a second switching function production method which produces combinations of switching functions corresponding only to the active control vectors, wherein said method are defined according to a given reference voltage vector and in applying said selected for producing a sequence of control vectors from the produced combinations of switching functions.Type: GrantFiled: December 13, 2006Date of Patent: February 1, 2011Assignee: Valeo Equipements Electriques MoteurInventors: Jean-Paul Vilain, Julien Hobraiche
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Publication number: 20100231145Abstract: A method for driving a power bridge (1) which is used for controlling a multiphase electric load (3), is connectable to said electric load (3) through several arms and is drivable by switching functions determining control vectors for controlling the load, wherein said control vectors are subdivided into the free wheel control vectors and active control vectors. The inventive method is characterised in that it comprises the use of a switching function production method which produced a reduced number of switching function combinations corresponding to the free wheel control vectors for producing a sequence of the control vectors.Type: ApplicationFiled: December 5, 2006Publication date: September 16, 2010Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEURInventors: Julien Hobraiche, Jean-Paul Vilain
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Publication number: 20100204900Abstract: The invention relates to a method for controlling a valve (13) in a thermal engine (10), the valve having a closed position and an opened position, the method comprising at least one step of opening the valve, said step including at least one phase (I) for bringing the valve into an open position and a phase (II) for maintaining the valve in an intermediate position between the closed position and the opened position. The invention also relates to a device for implementing this method and to a method for supplying an engine with an oxidant.Type: ApplicationFiled: May 28, 2008Publication date: August 12, 2010Applicant: VALEO SYSTEMES DE CONTROLE MOTEURInventors: Nicolas Gelez, Jean-Guilhem Dalissier, Damien Fournigault, Julien Hobraiche
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Publication number: 20080266918Abstract: A method for driving a power bridge (1) which is used for controlling a multiphase electric load (3), connectable to said electric load (3) via several arms and drivable by switching functions which determine free wheel controlling vectors and are active for controlling the load. The inventive method consists in selecting a first switching function production method which produces a reduced number of combinations of switching functions corresponding to the free wheel control vectors or a second switching function production method which produces combinations of switching functions corresponding only to the active control vectors, wherein said method are defined according to a given reference voltage vector and in applying said selected for producing a sequence of control vectors from the produced combinations of switching functions.Type: ApplicationFiled: December 13, 2006Publication date: October 30, 2008Inventors: Jean-Paul Vilain, Julien Hobraiche
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Patent number: 7400102Abstract: The present invention relates to a method for controlling a polyphase voltage inverter the inverter being designed to control a load in terms of pulse width modulation and to be connected upstream to a voltage source via a DC bus and downstream to an electrical load. It is connected to a control logic which implements said method. A geometric structure is produced while taking account of the constraints downstream and upstream of the inverter. More particularly, an upstream constraint relates to the voltage of the supply source at the input of the inverter. An error vector is also produced.Type: GrantFiled: June 26, 2006Date of Patent: July 15, 2008Assignee: Valeo Equipements Electriques MoteurInventors: Julien Hobraiche, Jean-Paul Vilain
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Publication number: 20070025130Abstract: The present invention relates to a method for controlling a polyphase voltage inverter the inverter being designed to control a load in terms of pulse width modulation and to be connected upstream to a voltage source via a DC bus and downstream to an electrical load. It is connected to a control logic which implements said method. A geometric structure is produced while taking account of the constraints downstream and upstream of the inverter. More particularly, an upstream constraint relates to the voltage of the supply source at the input of the inverter. An error vector is also produced.Type: ApplicationFiled: June 26, 2006Publication date: February 1, 2007Inventors: Julien Hobraiche, Jean-Paul Vilain