Valeo Equipements Electriques Moteur

Valeo Equipments Electriques Moteur

Hugues Doffin

Julien Masfaraud

Farouk Boudjemai

Ertugrul Taspinar

Roger Abadia

Oussama Rouis

Jean-Marc Dubus

François-Xavier Bernard

Christophe Louise

Richard Tellier

Jean-Claude Matt

Pierre Sardat

Paul Armiroli

Brice Lecole

Magali Laurence

Daniel Richard

Bruno Dessirier

Alain Gerard

Cedric Leboeuf

Arnaud De Vries

Matthieu Treguer

Julien Masfarud

Mattieu Treguer

Eric Blanc

Cédric Leboeuf

Christophe Picod

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 device for controlling () a power transistor (), comprises: an amplifying device () for monitoring the transistor gate () via an output control signal, the device including: a first input connected to the transistor drain, the whole assembly forming a first circuit portion; a second input connected to the transistor source, the whole assembly forming a second circuit portion. The control device comprises means for producing a polarizing current (I, I), the current being injected into the first and second inputs (NEG, POS) so as to offset the drain-source voltage measurement and maintain a linear operating mode of the output control signal, prior to opening the transistor, and the same number of N semiconductor junctions in the first and second circuit portions. The device is applicable in particular on battery charging devices.

Controlling a MOS transistor

The invention relates to a method for controlling a reversible electrical machine () coupled to a heat engine (). The electrical machine comprises a field winding () which is fed by an excitation current and an armature comprising a plurality of phase windings () fed by phase currents. According to the invention, the excitation current of the electrical machine is controlled according to the instantaneous rotational speed of the machine and the torque of the heat engine. According to other characteristics, the excitation current is equal to a pre-determined nominal current when the torque of the engine is resistant and the instantaneous speed is slower than a first pre-determined rotational speed, and is weaker than the nominal current when the torque of the engine is driving or the instantaneous speed is faster than the first speed.

Method for controlling reversible electrical machine coupled to heat engine, start/stop system suitable for carrying out the method, and use 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 device for controlling a transistor, the device comprising an amplifying device () for controlling the transistor gate via an output control signal, the device including a first input connected to the transistor drain, the whole assembly forming a first connection, a second input connected to the transistor source, the whole assembly forming a second connection. The control device also comprises: at least one protecting device including at least one switching element (T) which is inserted in series in the first connection of the amplifying device () to prevent a leakage current from passing through the first connection, and a device generating a regulating voltage to control the transistor, the generating device being configured such that there exists the same number of semiconductor junctions between the first and second connections. The invention is in particular applicable on battery charging devices.

Device for controlling a MOS transistor

The invention concerns an electric power supply device () for a motor vehicle, which is mounted in the motor vehicle and is designed to connect at least one electrical machine () capable of operating as an electric engine and/or an electric generator, to a battery () of the vehicle, comprising a single housing () including cooling means and having a lower part () forming a box for receiving at least one electric power storage unit ().

Compact electric power supply device for a motor vehicle

The invention relates to an energy storage device, particularly for an automobile, that comprises: an assembly () of serially-connected energy storage cells; a balancing circuit adapted for balancing the cells during the discharge thereof by enabling the flow of one or more balancing currents in one or more cells of the assembly (); optionally a diagnosis system () for providing at least one piece of information associated with at least one cell in the assembly; wherein the balancing circuit () is adapted for controlling the balancing current(s) based at least on external information independent from the energy-storage cell assembly and/or information associated with at least one of the cells and provided by the optional diagnosis system.

Energy storage device with assembly of energy storage cells and balancing circuit

A control device ('&#x2033;) for an AC-DC current converter associated with a polyphase synchronous rotary electrical machine. The AC-DC current converter contains, for each phase, a branch of two power switches in series, known as high and low (). The control device (&#x2032;&#x2033;) contains means of generating a signal (&#x3b8;(t)) representing the angular position of the rotor. The control device contains one or more digital tables (H,B) addressed by the signal of the angular position of the rotor (&#x3b8;(t)) and delivering at their outputs binary control signals (H-H,B-B), each controlling one branch of power switches ().

Device for controlling a polyphase synchronous rotary electrical machine and polyphase synchronous rotary electrical machine containing such a device

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

Method for recovering electrical energy in a vehicle with regenerative braking is used in a vehicle equipped for this purpose with an electrical capacitance device to store electrical energy supplied by a rotary electrical machine of the vehicle during regenerative braking operation. A choice is made, on the basis of the initial rotational speed of the rotary electrical machine to apply an energy recovery stratagem from at least the following two: &#x2014;a first energy recovery strategy that favors high power supplied by the rotary electrical machine; and&#x2014;a second energy recovery strategy that favors high efficiency of the rotary electrical machine.

Method for recovering electrical energy in vehicle with regenerative braking

A device for detecting the angular position of a rotor of a polyphase rotary electrical machine contains a stator and a plurality of magnetic field sensors () delivering first signals (-) representing a magnetic field. The device includes means () for generating, from linear combinations of the first signals, first () and second () sinusoidal signals, phase-shifted by a determined value &#x3c6; representing an angular position of the rotor, referred to as real. The device includes means for detecting a value for an angular position of the rotor referred to as estimated () by locking between the real and the estimated angular positions using a feedback loop known as a 'tracking' loop (--). The device may relate to a polyphase rotary electrical machine containing such a device.

Device for detecting the angular position of a rotor of a polyphase rotary electrical machine and rotary electrical machine containing such a device

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.

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Chatenay Malabry, France

Hugues Doffin