Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Paul Armiroli

Jean-Philippe Badey

Julien Masfaraud

Farouk Boudjemai

Oussama Rouis

Jean-Claude Matt

Hugues Doffin

Denis Even

Svetislav Jugovic

Khadija El Baraka

Brice Lecole

Jean-Marc Dubus

Patrick Rondier

Ertugrul Taspinar

Jérome Legranger

Magali Laurence

Jean-Claude Labrosse

Alain Gerard

Denis Gravat

Cedric Leboeuf

Arnaud De Vries

Matthieu Treguer

Cédric Plasse

Julien Quincerot

Mattieu Treguer

Eric Blanc

Cédric Leboeuf

Alain Lozac′h

Cédric Ledieu

An interconnection element () for connecting the stator coils of a polyphase rotary electric machine (), including a plurality of conductive layers stacked axially, including the same number of solid base layers (), and additional layers (), each formed by a plurality of ring portions, each one of the ring portions not covering the entire perimeter of the stator, each one of the conductive layers having internal connection tabs () for connecting the coils and external connection tabs () for connecting to connected electrical devices (), the number of base layers and additional layers being equal to the number of phases of the machine to which the interconnection element is added.

Interconnection element for connection of stator coils

The micro-hybrid system for a transport vehicle comprises a rotary electric machine suitable for being coupled mechanically to an engine of the vehicle, an AC-to-DC converter, a DC-to-DC converter, first and second electrical energy reservoirs suitable for storing an electrical energy produced by the rotary machine and for returning the electrical energy to consumer devices equipping the vehicle, and a controller for controlling the operation of the micro-hybrid system. The controller comprises piloting strategies module suitable for autonomously piloting the operating modes of the micro-hybrid system according to a plurality of strategies depending on information provided to said piloting means regarding an internal state of the micro-hybrid system and of a state of the vehicle.

Micro-hybrid system for motor vehicle incorporating piloting strategies module

A power supply of equipment onboard a motor vehicle equipped with a micro-hybrid system that can operate in a regenerative braking mode during which the energy recovered by a reversible rotary machine () of the micro-hybrid system is stored in an auxiliary energy storage unit (). The micro-hybrid system provides a dual-voltage network including, on the one hand, a low voltage (Vb) for supplying a battery () of the vehicle and, on the other hand and at the terminals of said auxiliary energy-storage unit, a floating voltage (Vb+X) higher than the low voltage. The floating voltage (Vb+X) is used for powering the onboard equipment of the vehicle that may require high currents during short periods of time for the dynamic operation thereof. The power supply is particularly useful for powering an electric-assistance turbocharger.

Power supply for onboard equipment of an automobile

A method for controlling a self-piloted alternator-starter for starting or restarting the thermal engine of an automobile. The alternator-starter includes a rotor rotating in a stator, and a belt for transmitting the torque of the alternator-starter rotor to the crankshaft of the thermal engine. The method includes a first preflux step during which the rotor winding is excited by a preflux electric current, and a second starting step during which the stator windings are excited. The preflux step lasts from 10 to 100 ms so that the transmission belt is tensioned below a degradation tension at the start of the second starting step.

Method for controlling self-piloted alternator-starter, comprising shortened pre-flux step

A micro-hybrid system () is connected to an on-board electrical network (V+) of a first heat engine () of a vehicle, whereby the first heat engine having a first cubic capacity which is greater than or equal to a first predetermined value. The system () comprises a number equal to two or more of identical starter-alternator devices () which are mechanically coupled to the first heat engine (). The torque and power characteristics of each of the starter-alternator devices (), while not being adapted to the first heat engine (), are adapted to a second heat engine having a second cubic capacity which is less than or equal to a second predetermined value equal to a fraction of the first predetermined value. The system is adapted to an application to large heat engines and allows a certain degree of standardization of starter-alternator devices.

Micro-hybrid system with a plurality of starter-alternators

A pulse width modulation (PWM) control circuit for a multimode electrical machine and a multimode electrical machine equipped with such a control circuit, including a configuration circuit that detects the operation mode of the electrical machine and produces a pulse width modulation to control a reversible current inverter circuit such that the electrical machine operates optimally in torque in engine modes and in current generator modes. The invention applies to vehicle alternators and starters.

Pulse width modulation control circuit for a multimode electrical machine, and a multimode electrical machine equipped with such a control circuit

The invention provides a polyphase armature () for a rotary electrical machine, comprising a body () carrying a plurality of phases (to), each of which comprises, firstly, an input (Eto E') and an output (Sto S&#x2032;), each of which is part of an electrically conductive input element and output element respectively, and, secondly, electrically conductive elements () for connecting the input of a phase to the output of a phase and constituting a winding having at least two coils per phase, together with at least one first electrically conductive inversion element () for reversing the circumferential direction of the current in the winding, the said first inversion element being interposed electrically between the two coils, at least one phase winding being provided with at least one electrically conductive second inversion element () for reversing the circumferential direction of the current in the said phase winding, and the electrically conductive output element of the said winding being connected in the electrical circuit that includes the two coils and the two electrically conductive inversion elements. The invention also provides a method of making such an armature. Application: a stator for a motor vehicle alternator.

Polyphase armature for a rotary electrical machine, and its method of manufacture

The alternator comprises a stator (), a rotor () disposed inside the stator () and having a plurality of phases, and at least two armature windings, each of which is part of a power supply source connected between earth and a power supply line, each source also comprising a bridge of rectifying elements and an auxiliary bridge of rectifying elements, characterised in that the auxiliary bridges of rectifying elements are arranged centrally with respect to the bridges of rectifying elements of the two sources, and in that the said bridges are carried by a support which is fixed with respect to the rear bearing of the alternator.

Alternator, in particular for motor vehicle

An alternator for a vehicle comprises two pole pieces having interlaced poles () and magnets, the poles exhibiting grooves profiled along an axis () and accommodating the magnets, the profile completely preventing the magnets escaping from the grooves in a plane perpendicular to the axis (). It has, for each magnet (), a strip () interposed between one face () of the magnet and at least one of the grooves (), the strip () being produced from a material which is less hard than the magnet.

Alternator for a vehicle with take-up of play on the inter-pole magnets

The vehicle alternator comprises a rotor having interleaved pole pieces, permanent magnets disposed between the pole pieces, and at least one magnet-support strip which extends over a circumferential outside face of the pole pieces.

Motor vehicle alternator with interpolar magnets

The invention concerns a vehicle alternator comprising a rotor including a shaft, two plates comprising nested pole horns, magnets extending between the pole horns, and members for maintaining the magnets. The maintaining members extend opposite an external surface of the axial end of the plates.

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Marolles en Brie, France

Paul Armiroli