Valeo Systemes De Controle Moteur

Valeo Siemens Eautomotive France Sas

Luis De Sousa

Boris Bouchez

Pierre Sardat

Bruno Condamin

Nicolas Gelez

Emmanuel Talon

Pierre-Alexandre Chauvenet

Dominique Dupuis

Benedicte Silvestre

Louis Janinet

Stephane Fontaine

Bénédicte Silvestre

Mame Fall

José-Louis Da Costa

Nathalie Coia-Huret

Stéphane Fontaine

Liyu Zou

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,

Method for distributing the total conversion power between the converters of a multiple-converter conversion device

The invention concerns an isolated DC/DC converter comprising an isolated circuit having:

Insulated DC/DC converter

The present invention relates to a method of managing a charge transfer between, on the one hand means of accumulation () of an electrical control device () of an electric motor of a motor vehicle () and, on the other hand, an external electrical circuit () outside said motor vehicle (), said electrical control device () comprising: a voltage converter () connected to the accumulation means (); an H-bridge voltage inverter () connected to the voltage converter () 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 () and the voltage inverter () as a function of the charge transfer.

Charge transfer device and associated management method

The battery charger comprises: two output terminals (BS, BS) between which a battery () is designed to be connected; two input terminals (BE, BE) designed to be connected to an electrical network (); two inductors (L., L.) respectively connected to the first input terminal (BE) and to the second input terminal (BE); two switching arms (B, B) for respectively connecting the inductors (L, L) selectively to the first output terminal (BS) and to the second output terminal (BS); a control device () designed for controlling the switching arms (B, B) so as to draw from the electrical network () a mains current (i) in phase with the mains voltage (u). The battery charger further comprises: a smoothing capacitor (C) connected to the second output terminal (BS); and a connection device () for connecting the smoothing capacitor (C) to the second input terminal (BE). The control device () is further designed to control at least the second switching arm (B.sub.C) so as to alternately charge and discharge the smoothing capacitor (C) for smoothing the load current (i).

Battery charger, electrical system and motor vehicle

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.

Method and electric combined device for powering and charging with compensation means

The invention relates to a power module () for converting an electric current flowing between an accumulator and an alternating-current motor, said module () comprising switching means () that can be controlled to authorize the powering of the motor and/or the charging of the accumulator, and an intrinsic control unit () connected to said switching means () and capable of delivering opening and/or closing signals to said switching means (), said intrinsic control unit () being further capable of exchanging data with a remote control unit, with a potential barrier.

Power module and electric device for the combined powering and charging of an accumulator and a motor respectively

A rotary drive system having a voltage source and an electric motor. The motor has a stator with independent phases and a rotor, an inverter designed to connect each phase to the voltage source in order to generate phase currents, and a device for controlling the inverter. The control device includes a unit for determining whether the fundamental frequency of the phase currents is lower than a frequency threshold equal to, at the most, 100 Hz, and a unit for generating a command, configured such that, when the fundamental frequency is determine as being lower than the frequency threshold, the command causes the appearance of a homopolar component in the phase currents.

Rotary drive system, method for controlling an inverter and associated computer program

The present invention concerns an absorption circuit () for absorbing a power ripple intended to be connected in parallel to a piece of electrical equipment powered by a power factor correction circuit (), said absorption circuit () being a step down voltage circuit comprising: &#x2014;a capacitor () mounted in series with an inductor () and at least one switch (), &#x2014;a control module (), &#x2014;means () for measuring a first current (I) intended to power said electrical equipment, the switch () being controlled by the control module () to vary the charging of the capacitor on the basis of the ripple of the first current (I) in order to attenuate the power ripple, and said circuit further comprising means () for measuring the voltage (Vc) at the terminals of the capacitor (), and the control module () being configured to control a second current (Ic) flowing through the capacitor () in such a way that the voltage (Vc) at the terminals of the capacitor () remains within a predefined interval.

Absorption circuit for absorbing a power ripple and associated method

An electrical circuit for supplying electrical propulsion power on board a motor vehicle is disclosed. The electrical power is obtained from power delivered to the electrical circuit by a battery of the vehicle and converted by at least two cells. The circuit includes inductive elements connected to transistors for managing the current flowing in the inductive elements, and the inductive elements are coupled to form a magnetic circuit. The magnetic circuit is alternatively controlled according to a common mode in which an apparent inductance of the said magnetic circuit is of the order of magnitude of the sum of the inductances specific to each inductive element, or according to a differential mode in which the apparent inductance of the said magnetic circuit is of the order of magnitude of the leakage inductance of the coupling between the said coupled inductive elements.

Converter for an electrical circuit designed to supply electrical propulsion power on board a motor vehicle

The invention relates to a combined device and method for powering and charging, that comprises an AC motor (), a converter (), storage means (), and switching means () either for enabling the powering of the motor () or for enabling the charging of the storage means () by the converter. The device includes means for compensating the magnetic fields generated during the charge of the storage means () in order to limit or prevent the movements of the motor () rotor.

A method for distributing the total power of an energy conversion device between at least two converters in the energy conversion device is disclosed. The sum of the conversion powers of the converters is the total power of the conversion device. The energy conversion device converts energy between a first electrical entity and a second electrical entity, where the two converters correspond to at least two portions of a ring, the portions being proportional to a predetermined power value of the respective converters thereof, the combination of the at least two portions forming the whole ring. 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 moveable around the ring, and the distribution of power between the converters is determined by the positions of the first and second sliders.

The invention relates to a combined method and device for powering and charging, wherein said device comprises an AC motor (), a converter (), storage means (), and switching means () either for enabling the powering of the motor () or for enabling the charging of the storage means () by the converter (). The switching means () is integrated in the converter () and includes at least one H-shaped bridge structure () for each phase of the motor ().

Combined electric device for powering and charging

A DC-DC voltage converter operating in zero-voltage switching mode with a switching threshold includes a plurality of interlaced cells, each cell having at least two controlled switches that are configured to be alternately closed and open, and each cell having an inductor in which an output current from the cell flows. The converter also includes a clock with a given switching period configured for triggering the switching of the switches between upper and lower control thresholds. A method for closed-loop control of the converter includes measuring, for each cell, an overrun period, determining a correction time corresponding to a minimum overrun period measured for the plurality of cells during an interlacing cycle, calculating an optimized switching period for the clock, and applying the optimized switching period to the clock to provide closed-loop control of the interlacing of the output currents from the plurality of cells of the converter.

Method for closed-loop control of a DC-DC voltage converter comprising a plurality of interlaced cells operating in zero-voltage switching mode

The present invention relates to an alternating-current electric motor of a combined electric device for powering and charging, the said electric motor being formed by a stator connected to an electricity network of which the number of phases is lower than the number of phases of the said motor, the said charging current of the said network being injected via a connection point dividing each phase of the said stator connected to a phase of the said network into two half-windings, the said motor being characterized in that each half-winding of a phase comprises a plurality of coils wired together so as to reduce the magnetic linkage of each half-winding at the said connection point so that there exists an apparent non-zero inductance at the said connection point in charging mode of the said device.

Alternating-current electric motor of a combined electric device for powering and charging

The invention relates to an electric device () comprising an alternating current electric motor () and a control inverter () for controlling the phase or phases of the motor (). The motor () comprises, on at least one winding of at least one phase (PA, PB, PC), a point (Ma, Mb, Mc) for measuring a voltage relative to a predefined potential (M), the measurement point (Ma, Mb, Mc) being chosen so that it divides the winding into a first (Za; Zb; Zc) and a second (ZaZbZc) portion such that the electromotive forces (e, e) induced in the two portions are phase-shifted relative to one another and means (A;B;C) for measuring the voltage between the measurement point and the predefined potential. The invention also relates to an associated method for measuring electromotive forces.

Electric device comprising an alternating current electric motor and a control inverter and a method for measuring the electromotive force of this device

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Eragny sur Seine, France

Luis De Sousa