Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Valeo Electrification

Farouk Boudjemai

Hugues Doffin

Julien Masfaraud

Jean-Claude Matt

Svetislav Jugovic

Paul Armiroli

Oussama Rouis

Jean-Marc Dubus

Ertugrul Taspinar

Fabrice Tauvron

Roger Abadia

Khadija El Baraka

Brice Lecole

Cyril Dubuc

Magali Laurence

Laurent De Lamarre

Richard Tellier

Ludovic Doffe

Alain Gerard

Matthieu Treguer

Arnaud De Vries

Pierre-François Ragaine

Bryann Lafabrie

Frédéric Boussicot

Sylvain Delion

Cedric Leboeuf

Hugues Tempez

Matthieu Mallevaey

Cédric Agneray

Julien Masfarud

Khadija Elbaraka

Mattieu Treguer

Eric Blanc

Cédric Leboeuf

Laurent Pouilly

The invention relates mainly to a rotary electrical machine for a motor vehicle, comprising:

Rotary electrical machine with improved power electronics

An electronic assembly () for an electrical rotating machine. The electronic assembly comprises a plastic overmoulded casing component () comprising housings () for receiving power modules (), a power-conducting part overmoulded in the casing component and comprising a plurality of ground and phase traces (), assembly openings () for receiving means () for mounting each power module on the casing component, the power modules comprising a conductive support whereon power switches () and signal components () are mounted, the conductive support () comprising a power connector () connected to the power-conducting part of the casing component and at least two phase connectors () connected to the phase traces () of the casing component, and a lower ground plane () suitable for receiving the casing component and for being mounted on a dissipation unit of the electrical rotating machine.

Electronic assembly for a rotary electrical machine for a motor vehicle

A built-in equipment for a micro-hybrid device for an automotive vehicle, and to a micro-hybrid device comprising the same. The built-in equipment for a micro-hybrid device for an automotive vehicle of the present invention can be electrically connected to operational components of the micro-hybrid device and comprises a pack of super-capacitors provided with voltage balancing means and electronic circuits. The equipment comprises a housing containing a first compartment for receiving the pack of super-capacitors, and a second for receiving the electronic circuits and the voltage balancing means.

Built-in equipment for micro-hybrid device for automotive vehicle and micro-hybrid device comprising the same

A method for braking the thermal engine of an automobile using a multiple-phase rotary electric machine () connected to the thermal engine and including a stator and a rotor () having at least one excitation winding (). A shortcut of at least one phase of the multiple-phase rotary machine is included during the stop phase of the thermal engine. The multiple-phase rotary electric machine is capable of braking the thermal engine of an automobile during the stop phase thereof due to the fact that a shortcut is induced, during the stop phase of the thermal engine, of at least one of the phases thereof.

Method and electrical machine for braking a thermal engine of vehicle during the stop phase thereof

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 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 triphase rotating electric machine includes three coils evenly distributed around a rotational axes of the machine, and at least one first sensor, capable of generating a periodic signal to represent the position of the machine around the axle and a control circuit capable of controlling, when in the first mode, the conduction of a switch (KUH), linked to at least one of the three coils based on the periodic signal generated by the first sensor (U), such that the conduction phases of the switch (KUH) have a duration in the order of half the signal period (U). The control circuit is capable of controlling switch (KUH), based on a second mode in which the conduction phases of the switch (KUH) have a duration in the order of a third of the signal period (U).

Triphase rotating electrical machine

A device for controlling a polyphase rotating machine comprising a stator, a rotor, and sensors, the device being capable of receiving at least one first sensing signal (V, W, U) representing a position of the rotor relative to the stator and outputted from a first sensor (), and a second sensing signal representing the position and phase-shifted relative to the first signal (V, W, U). The second signal is outputted from a second sensor. The control device comprises: means (K, R) for combining the first and the second sensing signals (U, V, W) into a combined signal (Ku; Kv; Kw) including at least one controlled switching signal with a variable cyclic ratio. The combined signal (Ku; Kv; Kw) is based on the cyclic ratio and enables the machine to be controlled.

Device for controlling polyphase rotating machine

A method for managing a power supply system with a variable voltage comprising the following steps: according to an instantaneous rotational speed of a rotating electrical machine, a power supply system output voltage with a variable voltage is set to an optimum output voltage between first and second service voltages in such a way as to maximize the electric power delivered by the electrical machine to an energy storage system; when the instantaneous rotational speed is slower than the nominal rotational speed, the output voltage is set to a first value which is substantially equal to the first service voltage in such a way as to maximize the yield of the transfer of energy from the electrical machine to a load; and when the instantaneous rotational speed is faster than the nominal rotational speed, the output voltage (U) is set to a second value substantially equal to the second service voltage in such a way as to maximize the yield of the transfer of energy from the electrical machine towards the load.

Method for managing power supply system with variable voltage, especially of motor vehicle

A device for controlling a polyphase rotating machine, the machine comprising a stator, a rotor, and sensors, the device being capable of receiving: at least one first sensing signal (U; V; W) representing a position of the rotor relative to the stator and output by a first sensor; and a second sensing signal (V; W; U) representing the position and phase-shifted relative to the first signal and output by a second sensor. The control device comprises: means (K, R) for combining the first and second sensing signals into a combined signal, the means including at least one controlled switching element capable adopting at least in two states, the combined signal being based on a state of the first element and enabling the machine to be controlled.

A method for controlling a reversible polyphase rotating electrical machine, wherein at least one coil circuit is supplied through a bridge of switches, including the following steps: controlling (P) the bridge to deliver to the coil circuit a periodic voltage with a phase shift (d) relative to an electromotive force induced in the coil circuit, such that an operating torque is generated, the phase shift having initially a first value (d); controlling (P) the bridge to deliver to the coil circuit a periodic voltage with the phase shift (d) producing a torque ranging between the operating torque and the opposite of the operating torque, the phase shift taking on a plurality of values upon the control; flipping (T) the bridge in rectifying mode.

Method for controlling polyphase rotating electrical machine

A machine comprising a rotor, a stator (), a control bridge () with controlled switches, and a control device () supplying control signals (C) to the control bridge (), wherein the control device comprises means () for applying to at least one switch of the control bridge a control signal with a phase-lead relative to a signal representing the position of the rotor relative to the stator. According to the invention, the applying means comprise means () for adjusting the phase lead (d) from a plurality of values for a given rotational speed of the rotor.

Polyphase rotating machine equipped with an improved control device

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Marcoussis, France

Farouk Boudjemai