Patents by Inventor Boris Bouchez

Boris Bouchez 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).

  • Publication number: 20200044572
    Abstract: The subject matter of the invention is a three-phase resonant DC-DC voltage converter, notably for an electric or hybrid vehicle, said converter including a plurality of resonant circuits. First inductive elements of the resonant circuits are coupled together and primary windings of the transformers of each resonant circuit are coupled together.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Inventor: Boris Bouchez
  • Publication number: 20200044571
    Abstract: The subject matter of the invention is a resonant DC-DC voltage converter, notably for an electric or hybrid vehicle, said converter including n interleaved main resonant circuits, n being a natural integer greater than or equal to two, and in which: the main resonant circuits are connected together at least one neutral point different from a ground of the converter, said neutral point being connected to a ground of the converter by an impedance configured to store energy and to enable zero voltage switching of the switches of the resonant DC-DC converter.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Inventor: Boris Bouchez
  • Patent number: 10454467
    Abstract: The present invention relates to a control device (1) for at least one transistor, referred to as the controlled transistor (3), comprising:—said controlled transistor (3) which comprises a control electrode (Ec) and two other electrodes (E1 and E2),—a main control circuit (5) connected to the control electrode (Ec) of the controlled transistor (3) and configured, according to a main mode of operation, to control the state of the controlled transistor (3) and,—an auxiliary control circuit (11) configured, according to an auxiliary mode of operation, to inject an auxiliary current opposing the current circulating between the main control circuit (5) and the control electrode (Ec) of the controlled transistor (3), characterized in that the control device (1) also comprises a control circuit (15) of the auxiliary control circuit (11), said control circuit (15) being configured to block or authorize the auxiliary operation of the auxiliary control circuit (11) depending on the commands from the main control circu
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: October 22, 2019
    Assignee: VALEO SIEMENS EAUTOMOTIVE FRANCE SAS
    Inventors: Boris Bouchez, Mathieu Grenier, José-Louis Da Costa
  • Patent number: 10355597
    Abstract: A power supply having a transformer, a magnetizing current regulation circuit, and a device for controlling the regulation circuit intended to switch the regulation circuit alternately from the magnetizing state to the demagnetizing state is disclosed. The control device is intended to prolong the magnetization phase for a magnetization time (TF). The power supply also includes an output capacitor connected to a secondary of the transformer so as to form a resonant circuit with the leakage inductor, the voltage between the terminals of the output capacitor corresponding to the output voltage (VS) of the power supply. The magnetization time (TF) and the value of the output capacitor are such that, on the resonance portion of the magnetization phase, the output voltage (VS) describes a sine wave portion and, starting from an initial value (VS0) below the median value of the sine wave, passes through said median value.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: July 16, 2019
    Assignee: Valeo Equipements Electriques Moteur
    Inventors: Dominique Oswald, Boris Bouchez
  • Patent number: 10124753
    Abstract: The present invention relates to a method of managing a charge transfer between, on the one hand means of accumulation (9) of an electrical control device (1) of an electric motor of a motor vehicle (43) and, on the other hand, an external electrical circuit (41) outside said motor vehicle (43), said electrical control device (1) comprising: a voltage converter (21) connected to the accumulation means (9); an H-bridge voltage inverter (3) connected to the voltage converter (21) on the one hand and to the phases of the electric motor on the other hand, characterized in that the method comprises a step of controlling the voltage converter (21) and the voltage inverter (3) as a function of the charge transfer.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: November 13, 2018
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Boris Bouchez, Luis De Sousa
  • Publication number: 20180316341
    Abstract: The present invention relates to a control device (1) for at least one transistor, referred to as the controlled transistor (3), comprising:—said controlled transistor (3) which comprises a control electrode (Ec) and two other electrodes (E1and E2),—a main control circuit (5) connected to the control electrode (Ec) of the controlled transistor (3) and configured, according to a main mode of operation, to control the state of the controlled transistor (3) and,—an auxiliary control circuit (11) configured, according to an auxiliary mode of operation, to inject an auxiliary current opposing the current circulating between the main control circuit (5) and the control electrode (Ec) of the controlled transistor (3), characterised in that the control device (1) also comprises a control circuit (15) of the auxiliary control circuit (11), said control circuit (15) being configured to block or authorise the auxiliary operation of the auxiliary control circuit (11) depending on the commands from the main control circui
    Type: Application
    Filed: October 25, 2016
    Publication date: November 1, 2018
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Boris BOUCHEZ, Mathieu GRENIER, José-Louis DA COSTA
  • Publication number: 20180281609
    Abstract: An electric system to charge a battery on a vehicle provides for a three-phase alternating-direct converter comprising input terminals connected to an outside power grid, a high output terminal and a low output terminal, a direct-direct converter made up of two direct-direct converter circuits, a first converter circuit having a high input terminal connected to the high output terminal of the alternating-direct converter and a second converter circuit having a low input terminal connected to the low output terminal of the alternating-direct converter, the low input terminal of the first direct-direct converter circuit being connected to the high input terminal of the second direct-direct converter circuit, and the high output terminal of the first converter circuit being connected to the high output terminal of the second converter circuit and the low output terminal of the first converter circuit being connected to the low output terminal of the second converter circuit.
    Type: Application
    Filed: March 30, 2018
    Publication date: October 4, 2018
    Applicant: Valeo Siemens eAutomotive France SAS
    Inventors: Gang YANG, Boris BOUCHEZ
  • Publication number: 20180191188
    Abstract: The invention concerns a method for charging an electrical energy storage unit, in particular installed in a vehicle, from a continuous charging terminal, using a DC/DC voltage converter to adapt the voltage between said continuous charging terminal and said electrical energy storage unit, said DC/DC voltage converter comprising at least two interleaved cells operating out of phase, each cell having respective switches; said method comprising control of the switches of said DC/DC voltage converter by pulse width modulation with a duty cycle to adapt the voltage between said continuous charging terminal and the electrical energy storage unit, said duty cycle having a given value ?v that is substantially constant over several interleaving cycles.
    Type: Application
    Filed: June 23, 2016
    Publication date: July 5, 2018
    Inventors: Boris BOUCHEZ, Bruno CONDAMIN, Pierre-Alexandre CHAUVENET
  • Publication number: 20180145611
    Abstract: An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising:—a DC/AC voltage converter (2), comprising a plurality of arms mounted in parallel, each arm comprising two controllable switching cells (12), in series and separated by a mid-point, the arms being paired in H-bridges (11),—for each H-bridge (11), a dedicated control member (13), such that all of the switching cells (12) of said H-bridge (11) can be controlled by this control member (13), each control member (13) being intended to communicate with a same remote control unit (14) through a potential barrier (15).
    Type: Application
    Filed: January 19, 2018
    Publication date: May 24, 2018
    Applicant: Valeo Systemes de Controle Moteur
    Inventors: Hicham Sadki, Nathalie Coia, Boris Bouchez
  • Patent number: 9973110
    Abstract: An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising: —a DC/AC voltage converter (2), comprising a plurality of arms mounted in parallel, each arm comprising two controllable switching cells (12), in series and separated by a mid-point, the arms being paired in H-bridges (11), —for each H-bridge (11), a dedicated control member (13), such that all of the switching cells (12) of said H-bridge (11) can be controlled by this control member (13), each control member (13) being intended to communicate with a same remote control unit (14) through a potential barrier (15).
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: May 15, 2018
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Hicham Sadki, Nathalie Coia, Boris Bouchez
  • Patent number: 9937807
    Abstract: The battery charger comprises: two output terminals (BS1, BS2) between which a battery (102) is designed to be connected; two input terminals (BE1, BE2) designed to be connected to an electrical network (110); two inductors (L.A, L.C) respectively connected to the first input terminal (BE1) and to the second input terminal (BE2); two switching arms (BA, BC) for respectively connecting the inductors (LA, LC) selectively to the first output terminal (BS1) and to the second output terminal (BS2); a control device (120) designed for controlling the switching arms (BA, BC) so as to draw from the electrical network (110) a mains current (iR) in phase with the mains voltage (uR). The battery charger further comprises: a smoothing capacitor (C) connected to the second output terminal (BS2); and a connection device (112) for connecting the smoothing capacitor (C) to the second input terminal (BE2). The control device (120) is further designed to control at least the second switching arm (B.sub.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: April 10, 2018
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Luis de Sousa, Bruno Condamin, Boris Bouchez, Pierre-Alexandre Chauvenet, Benedicte Silvestre
  • Patent number: 9873342
    Abstract: A combined power supply and charging method includes controlling switching from a motor power supply mode to an energy storage charging mode on an electrical network and vice versa, and compensating for magnetic fields during the energy storage charging mode in order to limit or eliminate movements of a rotor of the motor.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: January 23, 2018
    Assignee: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Luis De Sousa, Boris Bouchez
  • Patent number: 9793836
    Abstract: The invention relates to a power module (9) for converting an electric current flowing between an accumulator and an alternating-current motor, said module (9) comprising switching means (10) that can be controlled to authorize the powering of the motor and/or the charging of the accumulator, and an intrinsic control unit (13) connected to said switching means (10) and capable of delivering opening and/or closing signals to said switching means (10), said intrinsic control unit (13) being further capable of exchanging data with a remote control unit, with a potential barrier.
    Type: Grant
    Filed: October 30, 2012
    Date of Patent: October 17, 2017
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Boris Bouchez, Luis De Sousa, Bénédicte Silvestre
  • Patent number: 9733291
    Abstract: The invention relates to a device for detecting a leakage current, comprising means (124) for measuring a current from an electrical circuit of a vehicle, in particular a motor vehicle, said detection device being configured to be placed on board said vehicle and being such that the measuring means (124) comprise: a magnetic core (128) configured to be passed through by one or a plurality of conductive elements (127) traversed by the current from the electrical circuit, said conductive element(s) (127) forming a primary winding; a secondary winding (130), wound around the core (128), to generate a magnetic flux from a reference current; and an oscillator (132) for generating the reference current though the secondary winding (130), the reference current being configured to saturate said core (128).
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: August 15, 2017
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Boris Bouchez, Pierre Sardat
  • Patent number: 9484907
    Abstract: A device for controlling at least one transistor is disclosed. The device includes the transistor, which includes a control electrode and two other electrodes, a main control circuit connected to the control electrode of the transistor and configured to control the state of the transistor in a main operating mode, and an auxiliary control circuit configured to inject, in an auxiliary operating mode. An auxiliary current opposed to the current flows between the main control circuit and the control electrode of the transistor.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: November 1, 2016
    Assignee: Valeo Systemes de Controle Moteur
    Inventors: Boris Bouchez, Mathieu Grenier
  • Publication number: 20160303982
    Abstract: The battery charger comprises: two output terminals (BS1, BS2) between which a battery (102) is designed to be connected; two input terminals (BE1, BE2) designed to be connected to an electrical network (110); two inductors (LA, LC) respectively connected to the first input terminal (BE1) and to the second input terminal (BE2); two switching arms (BA, BC) for respectively connecting the inductors (LA, LC) selectively to the first output terminal (BS1) and to the second output terminal (BS2); a control device (120) designed for controlling the switching arms (BA, BC) so as to draw from the electrical network (110) a mains current (iR) in phase with the mains voltage (uR). The battery charger further comprises: a smoothing capacitor (C) connected to the second output terminal (BS2); and a connection device (112) for connecting the smoothing capacitor (C) to the second input terminal (BE2).
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Applicant: Valeo Systemes de Controle Moteur
    Inventors: Luis de Sousa, Bruno Condamin, Boris Bouchez, Pierre-Alexandre Chauvenet, Benedicte Silvestre
  • Patent number: 9231464
    Abstract: A method is disclosed for reducing the common mode current flowing between the internal ground of an electrical circuit in an automotive vehicle, and the earth, when electric power is exchanged between an electric power storage unit of the electrical circuit and an electric power source external to the circuit. An electronic component is used to apply an electrical quantity as a function of the common mode current to an injection point in the circuit in order to reduce the common mode current. The value of the common mode current is obtained using a measuring device having a magnetic torus configured to be traversed by an electric line by which the electric power is exchanged, the electric line forming a primary winding, a secondary winding, wound about said torus for generating a magnetic flux on the basis of a reference current, and an oscillator for generating the reference current through the secondary winding.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: January 5, 2016
    Assignee: Valco Systemes de Controle Moteur
    Inventors: Dominique Oswald, Boris Bouchez
  • Publication number: 20150381076
    Abstract: An electrical architecture (1) for converting DC voltage into AC voltage, and vice versa, comprising: a DC/AC voltage converter (2), comprising a plurality of arms mounted in parallel, each arm comprising two controllable switching cells (12), in series and separated by a mid-point, the arms being paired in H-bridges (11), for each H-bridge (11), a dedicated control member (13), such that all of the switching cells (12) of said H-bridge (11) can be controlled by this control member (13), each control member (13) being intended to communicate with a same remote control unit (14) through a potential barrier (15).
    Type: Application
    Filed: February 18, 2014
    Publication date: December 31, 2015
    Applicant: Valeo Systemes de Controle Moteur
    Inventors: Hicham Sadki, Nathalie Coia, Boris Bouchez
  • Publication number: 20150375629
    Abstract: A combined power supply and charging method includes controlling switching from a motor power supply mode to an energy storage charging mode on an electrical network and vice versa, and compensating for magnetic fields during the energy storage charging mode in order to limit or eliminate movements of a rotor of the motor.
    Type: Application
    Filed: July 24, 2015
    Publication date: December 31, 2015
    Applicant: Valeo Systemes de Controle Moteur
    Inventors: Luis De Sousa, Boris Bouchez
  • Publication number: 20150316948
    Abstract: The invention relates to a method for distributing the total power of an energy conversion device between at least two converters in said energy conversion device, the sum of the conversion powers of the converters being the total power of the conversion device, the energy conversion device converting energy between a first electrical entity and a second electrical entity, characterised in that: said at least two converters correspond to at least two portions of a ring (29), the portions being proportional to a predetermined power value of the respective converters (1) thereof, the combination of the at least two portions forming the whole ring; and in that the total power of the conversion device corresponds to an arc of the ring between the positions of a first slider and a second slider that are movable around the ring, and the distribution of power between the converters is determined by the positions of the first slider and the second slider that are movable around the ring.
    Type: Application
    Filed: July 14, 2015
    Publication date: November 5, 2015
    Applicant: VALEO SYSTEMES DE CONTROLE MOTEUR
    Inventors: Boris Bouchez, Luis De Sousa