Patents by Inventor Sebastien Vieillard
Sebastien Vieillard 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: 10301035Abstract: A method and configuration to optimize an entire traction system available on a helicopter including an auxiliary engine by allowing the engine to provide non-propulsive and/or propulsive power during flight. The auxiliary engine is coupled to participate directly in providing mechanical or electrical propulsive power and electrical non-propulsive power to the aircraft. An architecture configuration includes an on-board power supply network, two main engines, and a system for converting mechanical energy into electrical energy between a main gearbox to the propulsion members and a mechanism receiving electrical energy including the on-board network and power electronics in conjunction with starters of the main engines. An auxiliary power engine provides electrical energy to the mechanism for receiving electrical energy via the energy conversion system and a mechanism for mechanical coupling between the auxiliary engine and at least one propulsion member.Type: GrantFiled: June 12, 2013Date of Patent: May 28, 2019Assignees: SAFRAN HELICOPTER ENGINES, SAFRAN POWER UNITS, SAFRAN ELECTRICAL & POWERInventors: Olivier Bedrine, Christian Sarrat, Fabien Silet, Sebastien Vieillard
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Patent number: 10128652Abstract: A method of stabilizing a DC electricity network, the network including a DC voltage source powering electrical loads that are connected in parallel to terminals of the voltage source and each of which is to receive a current or voltage setpoint. The method stabilizes the network by regulating setpoints applied to the loads by a virtual stabilization impedance generated at terminals of each load, the virtual impedances being dimensioned to stabilize the network in desired operating points and in given configurations of the network including a state in which at least one load is inactive or has failed and a state in which the stabilization of a load is inactive. Each virtual impedance is generated by a non-linear regulation loop acting on the setpoint for the corresponding load.Type: GrantFiled: September 12, 2012Date of Patent: November 13, 2018Assignees: LABINAL POWER SYSTEMS, UNIVERSITE DE LORRAINEInventors: Sebastien Vieillard, Pierre Magne, Farid Meibody-Tabar, Babak Nahid-Mobarakeh, Serge Pierfederici
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Patent number: 9849849Abstract: A device for supplying electrical power to an aircraft on the ground, including two electric generators driven by an auxiliary power unit. The first generator is connected by a connection/disconnection mechanism to an aircraft network and to an electric taxiing network, to supply either an AC voltage to the aircraft network when it is connected to the aircraft network, or an AC voltage or a power to the taxiing network when it is connected to the taxiing network. The second generator is connected by the connection/disconnection mechanism to the aircraft or taxiing networks to supply the AC voltage to one of those networks.Type: GrantFiled: March 14, 2013Date of Patent: December 26, 2017Assignee: LABINAL POWER SYSTEMSInventors: Sebastien Vieillard, Loic Le Duigou
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Patent number: 9745943Abstract: An electrical control and power supply system for at least one helicopter motor/generator, the system including a first DC/AC converter selectively delivering AC electrical power to the at least one motor/generator, depending on respective positions of contactors of a connection matrix actuated from an electronic control circuit, the first DC/AC converter powered with DC by a DC power supply device that includes either a circuit for rectifying an AC voltage delivered via a contactor by a starter/generator of an APU, or a voltage booster DC/DC converter powered from a battery via a contactor. The connection matrix further includes a contactor connecting the first DC/AC converter in parallel with the second DC/AC converter to make it possible, once at least one of the motors/generators has started, to inject additional power from the starter/generator of the APU.Type: GrantFiled: May 6, 2013Date of Patent: August 29, 2017Assignee: LABINAL POWER SYSTEMSInventor: Sebastien Vieillard
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Patent number: 9592907Abstract: An electrical power supply device for an aircraft on the ground, the device including two electricity generators driven by an auxiliary power unit, wherein the first generator is connected by a selective connection/disconnection mechanism to an aircraft network and to an electrical taxiing network, and is configured to deliver either a first AC voltage to the aircraft network when it is connected to that network, or an AC voltage or a power to the taxiing network when it is connected to that network, and wherein the second generator is connected by the connection/disconnection mechanism to the aircraft network to deliver the first AC voltage to that network solely when the first generator is powering the taxiing network.Type: GrantFiled: July 27, 2012Date of Patent: March 14, 2017Assignees: LABINAL POWER SYSTEMS, TURBOMECAInventors: Sebastien Vieillard, Serge Berenger, Serge Thierry Roques, Pascal Dauriac
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Patent number: 9467077Abstract: A method and architecture processing electrical energy regenerated from an aircraft, to address drawbacks posed by customary solutions for dissipating low energy of resistors, conventionally ceramics, which require a significant volume of ceramic and an additional power converter. The method and architecture return energy to an electric generator to convert the energy into mechanical energy. The architecture includes a reversible electric generator, driven by a thermal machine and configured to deliver an AC voltage, electric actuators, and a voltage converter circuit with multiple links. The circuit includes AC voltage rectifiers for voltage originating from the generator and power converters arranged on the multiple links to drive as many electric actuators. The converter circuit also includes a mechanism for electrical energy inverse transmission applied to the generator operating in a motor mode.Type: GrantFiled: November 22, 2011Date of Patent: October 11, 2016Assignee: LABINAL POWER SYSTEMSInventors: Julien Rambaud, Sebastien Vieillard
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Patent number: 9197088Abstract: A module converting voltage between a high-voltage electrical network and at least one energy storage element an aircraft, the conversion module configured to reversibly convert between a DC voltage of the high-voltage electrical network and a DC voltage of the energy storage element, the DC voltage of the energy storage element floating relative to the DC voltage of the high-voltage electrical network and centered relative to the mass of the aircraft, the module including an input module including two filters each capable of receiving a DC voltage, a first arm and a second arm including switches, and a mechanism controlling the switches, operating per cycle of a switching period and capable of controlling at least one first switch and at least one second switch identically but offset by a half-period, whereby the first switch is open when the second switch is closed and vice versa.Type: GrantFiled: December 22, 2011Date of Patent: November 24, 2015Assignees: LABINAL POWER SYSTEMS, SAGEM DEFENSE SECURITE, MESSIER-BUGATTI-DOWTYInventors: Sébastien Vieillard, Laurent Bernard Brosson, Charif Karimi, Marc Henri Yves Pontrucher
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Patent number: 9062627Abstract: The invention relates to a method for controlling an electric motor actuating a mobile hood provided in a thrust reverser for a turboreactor, said method being characterized in that it comprises steps of: determining the operating state of the electric motor; interrupting the supply of the electric motor if said motor is not in operation during a defined period of time; reactivating the electric motor after an idle period and repeating the previous steps or definitively stopping the motor if the steps have already been repeated a pre-defined number of times. The invention also relates to a method for managing the electrical supply of a motor provided in a device arranged in the vicinity of a turboreactor.Type: GrantFiled: January 25, 2008Date of Patent: June 23, 2015Assignee: AIRCELLEInventors: Michel Philippe Dehu, Fabrice Henri Emile Metezeau, Eric Lecossais, Gilles Le Gouellec, Regis Meuret, Sebastien Vieillard
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Publication number: 20150130186Abstract: An electrical control and power supply system for at least one helicopter motor/generator, the system including a first DC/AC converter selectively delivering AC electrical power to the at least one motor/generator, depending on respective positions of contactors of a connection matrix actuated from an electronic control circuit, the first DC/AC converter powered with DC by a DC power supply device that includes either a circuit for rectifying an AC voltage delivered via a contactor by a starter/generator of an APU, or a voltage booster DC/DC converter powered from a battery via a contactor. The connection matrix further includes a contactor connecting the first DC/AC converter in parallel with the second DC/AC converter to make it possible, once at least one of the motors/generators has started, to inject additional power from the starter/generator of the APU.Type: ApplicationFiled: May 6, 2013Publication date: May 14, 2015Applicant: LABINAL POWER SYSTEMSInventor: Sebastien Vieillard
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Publication number: 20150042155Abstract: A device for supplying electrical power to an aircraft on the ground, including two electric generators driven by an auxiliary power unit. The first generator is connected by a connection/disconnection mechanism to an aircraft network and to an electric taxiing network, to supply either an AC voltage to the aircraft network when it is connected to the aircraft network, or an AC voltage or a power to the taxiing network when it is connected to the taxiing network. The second generator is connected by the connection/disconnection mechanism to the aircraft or taxiing networks to supply the AC voltage to one of those networks.Type: ApplicationFiled: March 14, 2013Publication date: February 12, 2015Applicant: HISPANO SUIZAInventors: Sebastien Vieillard, Loic Le Duigou
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Publication number: 20140375128Abstract: A method of stabilizing a DC electricity network, the network including a DC voltage source powering electrical loads that are connected in parallel to terminals of the voltage source and each of which is to receive a current or voltage setpoint. The method stabilizes the network by regulating setpoints applied to the loads by a virtual stabilization impedance generated at terminals of each load, the virtual impedances being dimensioned to stabilize the network in desired operating points and in given configurations of the network including a state in which at least one load is inactive or has failed and a state in which the stabilization of a load is inactive. Each virtual impedance is generated by a non-linear regulation loop acting on the setpoint for the corresponding load.Type: ApplicationFiled: September 12, 2012Publication date: December 25, 2014Applicants: HISPANO SUIZA, UNIVERSITE DE LORRAINEInventors: Sébastien Vieillard, Pierre Magne, Farid Meibody-Tabar, Babak Nahid-Mobarakeh, Serge Pierfederici
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Publication number: 20140138479Abstract: An electrical power supply device for an aircraft on the ground, the device including two electricity generators driven by an auxiliary power unit, wherein the first generator is connected by a selective connection/disconnection mechanism to an aircraft network and to an electrical taxiing network, and is configured to deliver either a first AC voltage to the aircraft network when it is connected to that network, or an AC voltage or a power to the taxiing network when it is connected to that network, and wherein the second generator is connected by the connection/disconnection mechanism to the aircraft network to deliver the first AC voltage to that network solely when the first generator is powering the taxiing network.Type: ApplicationFiled: July 27, 2012Publication date: May 22, 2014Applicants: TURBOMECA, HISPANO-SUIZAInventors: Sebastien Vieillard, Serge Berenger, Serge Thierry Roques, Pascal Dauriac
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Patent number: 8648556Abstract: A permanent magnet synchronous machine (PMSM) includes a stator and rotor powered by an inverter. A device to control the PMSM includes a sensor to sample a measurement ?m of the position of the rotor, a control unit to control an operating point of the PMSM according to the position of the rotor and settings, and an estimation unit to determine an estimate {circumflex over (?)} of the rotor position. The device also includes a malfunction detector to detect a malfunction of the sensor and a switch to connect the control unit to the sensor so that the control unit receives the measured position ?m of the rotor while the malfunction detector does not indicate any sensor malfunction, and otherwise to connect the control unit to the estimation unit so that the control unit receives the estimated position {circumflex over (?)} of the rotor when the malfunction detector indicates a sensor malfunction.Type: GrantFiled: December 10, 2010Date of Patent: February 11, 2014Assignee: Hispano SuizaInventors: Guilhem Lejeune, Sebastien Vieillard
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Publication number: 20140008972Abstract: A generation method performed by a generator module of an electricity network of an aircraft, the electricity network including a power supply line powered by the generator module, a DC bus powered from the power supply line via a rectifier, and at least one electrical actuator powered with AC from the DC bus via an inverter. The generation method includes: delivering an AC voltage as a function of a voltage setpoint and of a voltage measured in the on-board network; and determining the voltage setpoint as a function of an operating parameter of the actuator.Type: ApplicationFiled: March 7, 2012Publication date: January 9, 2014Applicant: HISPANO-SUIZAInventors: Eric De Wergifosse, Julien Rambaud, Sebastien Vieillard
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Publication number: 20130285615Abstract: A module converting voltage between a high-voltage electrical network and at least one energy storage element an aircraft, the conversion module configured to reversibly convert between a DC voltage of the high-voltage electrical network and a DC voltage of the energy storage element, the DC voltage of the energy storage element floating relative to the DC voltage of the high-voltage electrical network and centered relative to the mass of the aircraft, the module including an input module including two filters each capable of receiving a DC voltage, a first arm and a second arm including switches, and a mechanism controlling the switches, operating per cycle of a switching period and capable of controlling at least one first switch and at least one second switch identically but offset by a half-period, whereby the first switch is open when the second switch is closed and vice versa.Type: ApplicationFiled: December 22, 2011Publication date: October 31, 2013Applicants: HISPANO-SUIZA, MESSIER-BUGATTI-DOWTY, SAGEM DEFENSE SECURITEInventors: Sebastien Vieillard, Laurent Bernard Brosson, Charif Karimi, Marc Henri Yues Pontrucher
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Publication number: 20130229053Abstract: A method and architecture processing electrical energy regenerated from an aircraft, to address drawbacks posed by customary solutions for dissipating low energy of resistors, conventionally ceramics, which require a significant volume of ceramic and an additional power converter. The method and architecture return energy to an electric generator to convert the energy into mechanical energy. The architecture includes a reversible electric generator, driven by a thermal machine and configured to deliver an AC voltage, electric actuators, and a voltage converter circuit with multiple links. The circuit includes AC voltage rectifiers for voltage originating from the generator and power converters arranged on the multiple links to drive as many electric actuators. The converter circuit also includes a mechanism for electrical energy inverse transmission applied to the generator operating in a motor mode.Type: ApplicationFiled: November 22, 2011Publication date: September 5, 2013Applicant: HISPANO SUIZAInventors: Julien Rambaud, Sebastien Vieillard
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Publication number: 20120280641Abstract: A permanent magnet synchronous machine (PMSM) includes a stator and rotor powered by an inverter. A device to control the PMSM includes a sensor to sample a measurement ?m of the position of the rotor, a control unit to control an operating point of the PMSM according to the position of the rotor and settings, and an estimation unit to determine an estimate {circumflex over (?)} of the rotor position. The device also includes a malfunction detector to detect a malfunction of the sensor and a switch to connect the control unit to the sensor so that the control unit receives the measured position ?m of the rotor while the malfunction detector does not indicate any sensor malfunction, and otherwise to connect the control unit to the estimation unit so that the control unit receives the estimated position {circumflex over (?)} of the rotor when the malfunction detector indicates a sensor malfunction.Type: ApplicationFiled: December 10, 2010Publication date: November 8, 2012Applicant: HISPANO SUIZAInventors: Guilhem Lejeune, Sébastien Vieillard
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Patent number: 8207780Abstract: An electronic control module for a field effect transistor includes a gate, a drain and a source. The electronic control module includes: a control circuit including: a power supply able to provide a fixed potential to the gate of the field effect transistor; and an amplifier stage able to vary the potential of the source of the field effect transistor with relation to the potential of the gate of the field effect transistor; and a field effect transistor whose gate is connected to the fixed potential; and source is connected to the amplifier stage.Type: GrantFiled: August 30, 2010Date of Patent: June 26, 2012Assignee: Hispano SuizaInventors: Julien Rambaud, Sébastien Vieillard
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Publication number: 20110121891Abstract: An electronic control module for a field effect transistor includes a gate, a drain and a source. The electronic control module includes: a control circuit including: a power supply able to provide a fixed potential to the gate of the field effect transistor; and an amplifier stage able to vary the potential of the source of the field effect transistor with relation to the potential of the gate of the field effect transistor; and a field effect transistor whose gate is connected to the fixed potential; and source is connected to the amplifier stage.Type: ApplicationFiled: August 30, 2010Publication date: May 26, 2011Applicant: HISPANO SUIZAInventors: Julien RAMBAUD, Sebastien Vieillard
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Publication number: 20100115915Abstract: The invention relates to a method for controlling an electric motor actuating a mobile hood provided in a thrust reverser for a turboreactor, said method being characterised in that it comprises steps of: determining the operating state of the electric motor; interrupting the supply of the electric motor if said motor is not in operation during a defined period of time; reactivating the electric motor after an idle period and repeating the previous steps or definitively stopping the motor if the steps have already been repeated a pre-defined number of times. The invention also relates to a method for managing the electrical supply of a motor provided in a device arranged in the vicinity of a turboreactor.Type: ApplicationFiled: January 25, 2008Publication date: May 13, 2010Applicant: AircelleInventors: Michel Philippe Dehu, Fabrice Henni Emile Metezeau, Eric Lecossais, Gilles Le Gouellec, Regis Meuret, Sebastien Vieillard