Renault S.a.s.

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Nissan Motor Company Limited

Ampere S.a.s.

Serge Loudot

Benoit Briane

Xavier Maynard

Gareth Pugsley

Olivier Ploix

Sylvain Leirens

Rene Escoffier

Sébastien Carcouet

Samuel Cregut

Thierry Boudet

Arnaud Villeneuve

Armando Fonseca

Pablo Garcia Estebanez

Antoine Caillerez

Benoît Briane

Sebastien Gay-Desharnais

Florence Olmi

Christian Hiron

Ariane Neusser

Antoine Caillierez

A flying capacitor device, such as an inverter arm or a boost converter, includes a plurality of N switching cells which are nested in one another and a balancing circuit which is adapted to have a resonant frequency equal to the switching frequency of the transistors. The balancing circuit is connected, on the one hand, at a midpoint and at a terminal of a capacitor of the last cell.

Flying capacitor device and method for preloading the capacitors of such a device

The present description concerns a method of controlling a converter including two H bridges () coupled by a transformer (), wherein: two switching sequences between states are respectively applied to the two bridges; one of the states of a first one of the sequences corresponds to a given direction of application of a voltage to the transformer by the bridge having the first one of the sequences applied thereto; the first one of the sequences varies during a same halfwave of an AC voltage (V) across one of the bridges (), so that: during at least a first period, switchings into and out of said one of the states occur in a same state of a second one of the sequences; and during at least a second period, switchings into and out of said one of the states occur in different states of the second one of the sequences.

Switched-mode converter control

The invention concerns a heterojunction field-effect transistor comprising a stack of first and second III-N type semiconducting layers forming an electron gas or hole layer; a first conduction electrode in electrical contact with the gas layer and a second conduction electrode; a separation layer positioned vertically in line with the first electrode and under the second semiconducting layer; a third semiconducting layer arranged under the separation layer and in electrical contact with the second electrode; a conductive element in electrical contact with the gas layer and electrically connecting the third semiconducting layer and the gas layer; and a control gate positioned between the conductive element and the first conduction electrode.

Heterojunction transistor with vertical structure

An electronic device including: a discrete transistor including a semiconductor chip encapsulated in a package made of an insulating material leaving access to a first pad of connection to a first conduction terminal of the transistor; and a printed circuit board () including first () and second () separate connection pads, wherein the transistor is assembled on the printed circuit board so that the first connection pad () of the transistor is in contact with the first () and second () connection pads of the printed circuit board.

Electronic device comprising a discrete transistor assembled on a printed circuit board

An electric motor assembly includes a multi-phase electric motor, a battery of accumulators, an inverter configured to convert the direct current of the battery into multi-phase alternating current adapted to supply the motor, and a connection housing. The connection housing includes plugs allowing connection of motor phases, the battery terminals, and at least five connections to the inverter. The housing further includes a group of contacts allowing it to be connected to a single phase mains system, and a group of contacts allowing it to be connected a multi-phase mains system. The housing includes switches according to the position of which the system including the housing, the battery, the inverter, and the motor connected solely by its phases, alternatively allows the motor to be supplied from the battery, the battery to be recharged directly from a single-phase mains system, and the battery to be recharged from multi-phase mains system.

Electric motor assembly rechargeable from an electrical mains system, and dedicated connection housing

A device for generating electric power of a traction system of a motor vehicle powered by a battery, including a first rectifier stage configured to be connected to a power supply network or to a load to be powered, a second inverter stage configured to be connected to the battery, a mechanism regulating average current flowing between the first stage and the second stage, and a controller controlling a transfer of electric power between the power supply network and the battery or the powering of a load.

Rapid reversible charging device for an electric vehicle

A device for charging a battery including a rectifier input stage configured to be connected to a power supply network and an inverter output stage configured to be connected to the battery, and a mechanism regulating average current obtained from the input stage about a current value generated from the maximum current supplied by the power supply network and according to a coefficient that is at least equal to a ratio between the maximum voltage rectified by the input stage and the battery voltage.

Fast charging device for an electric vehicle

An interconnection housing for a motor vehicle, including connection terminals for a battery and connection terminals for an inverter. The housing includes connection terminals for an external electric power supply and outlets for connection to an AC electric motor, such that the battery can be recharged when the external power supply, the inverter, the electric motor, and the battery are all connected simultaneously to the interconnection housing.

Interconnection housing with an inverter for charging a battery of a motor vehicle

A device for controlling a power shunt circuit of a hybrid vehicle, including inverters, including DC sides linked to a DC voltage storage unit and AC sides intended to be linked to polyphase electrical machines. The polyphase electrical machines are able to operate in engine/engine or generator/generator modes. A control unit controls chopping switches of the second inverter in a way that is temporally offset relative to chopping switches of the first inverter in such a case, the control unit of the inverters controlling their chopping switches by pulse width vector modulation.

Device and method for controlling a power shunt circuit, hybrid vehicle having same

An electric energy exchange system between at least one motor-generator system and at least one storage member determining a continuous storage voltage between two branches of a bus circuit on which are connected in parallel a DC/DC converter, a filtering capacity, and a DC/AC converter connected on at least one motor-generator system. The system includes at least one thyristor connected as a bypass on the positive bus between the storage member and the output of the converter-voltage raiser to short-cut the converter, and a thyristor priming device to, based on the required voltage at the filtering capacity, determine at least in discharge the shorting of the converter-voltage raiser with direct passage of the current through the thyristor as long as the voltage of the filtering capacity, which is substantially equal to the storage member voltage, is sufficient for the electric machines to provide requested torque. The system can particularly be applied to a power-bypass hybrid vehicle, for continuous variation of transmission ratio.

Electric energy exchange system, in particular for a hybrid vehicle

An electrical management device for a vehicle power supply that includes a single converter to minimize the number of components required to simultaneously control two energy sources, such as a photovoltaic source and a thermoelectric source, on board a motor vehicle that includes at least one electrical energy storage battery.

Electrical management device for vehicle power supply

A control method for a vehicle drive assembly includes applying a conduction angle set point value to a variable reluctance machine. The method also includes regulating the conduction angle set point value by comparing a table set point torque from an angle table and a torque estimation value to determine a control measurement of torque delivered by the drive assembly. The control measurement of torque is corrected to an additional conduction angle which is added to a set point angle from the angle table to determine the regulated conduction angle set point value.

Method for controlling a heat engine vehicle driving assembly

A method for controlling a drive assembly of a vehicle including applying a conduction angle set value greater than 180&#xb0; to a variable reluctance machine such that the machine operates in a continuous current mode adjustable according to the controlled measurement of operation stability of the machine in the continuous current mode.

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Villiers le Bacle, France

Serge Loudot