Valeo Equipements Electriques Moteur

Jean-François Duguey

Oussama Rouis

François-Xavier Bernard

Ertugrul Taspinar

Gilbert Konan

Cyrille Corniglion

Benoit Soucaze-Guillous

Laurent Domenger

Abdelaziz Azizi Samir

Daniel Benchetrite

Paul-Eric Chupin

Ryadh Ben Omrane

Daniel Pereira

Son Ha Tran

Eric Semail

Hajar Hercouet

The device according to the invention controls a polyphase inverter () intended for powering from a DC current source (CC) a polyphase rotating electric machine (). The device is of the type of those generating commutation functions driving commutation elements () of the inverter in such a way as to obtain a reduction of the losses in the commutation elements and a decrease of an effective current in a decoupling capacitor () of the source (CC). According to the invention, this reduction and this decrease are obtained by means of a set of control strategies () determining the commutation functions by using additional degrees of freedom of the polyphase machine () with respect to a three-phase reference machine. The polyphase machine comprises first and second phase windings forming a first three-phase system () and a second three-phase system () with distinct neutral points () offset angularly by a predetermined angle of offset (&#x398;). The first and second phase windings are linked respectively to three first and three second power arms () formed by the commutation elements.

Device for controlling a polyphase inverter

A method for controlling regenerative braking of an automobile micro-hybrid system is disclosed. The system includes at least a rotary electrical machine and an electrochemical battery. The method includes a step, when the electrochemical battery has a first predetermined energy state, which corresponds to an initial optimum charging state, of commanding a reduction of the first energy state, to a second energy state corresponding to an intermediate charging state, so as to make a charging capacity available in the electrochemical battery during a subsequent opportunity for recovery of electrical energy during, for example, a braking phase of the vehicle.

Method and device for controlling micro-hybrid system with regenerative braking for motor vehicle

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Cachan, France

Jean-François Duguey