Valeo Systemes De Controle Moteur

Thierry Cheng

Damien Alfano

Raymond Rechdan

Cyrille Corniglion

Sylvain Delion

Pauline Lartigue

Christophe Laupin-Villemus

Sylvain Decoster

Patrick Sega

An electric circuit () for charging at least one electrical energy storage unit () by means of an electrical network, the circuit () comprising: an inductive cell () configured to interact with an inductive cell of the electrical network to exchange energy by electromagnetic induction, a rectifier () disposed downstream from the inductive cell () and whereof the positive output terminal () and the negative output terminal () are each connected to a conductor () of a DC bus (), a capacitor () mounted between the two conductors () of the DC bus (), a power stage () whereof the positive input terminal () and the negative input terminal () are respectively connected to one of the conductors () of the DC bus (), and which is configured to adapt the value of the DC voltage between the positive input terminal () thereof and the negative input terminal () thereof to the electrical energy storage unit (), the power stage comprising, at most, two voltage converters, and the electrical energy storage unit ().

Electric circuit for charging at least one electrical energy storage unit by means of an electrical network

The invention relates to an electrical network () for a vehicle, comprising: a first circuit () comprising a first power source () and at least one first electronic component () powered by the first power source (); and a second circuit () comprising a second power source () and at least one second electronic component () which can be activated and is powered by the second power source (). The network () also comprises: a connecting member () between the first () and second () circuits, said connecting member () allowing, in a first configuration, an exchange of current of a first value between the first circuit () and the second circuit () and, in a second configuration, an exchange of current of a second value between the first circuit () and the second circuit (), in which the second value is lower than the first value; and a control unit () which controls the configuration of the connecting member ().

Electrical network for a vehicle, having at least one component that can be activated

The invention relates to a device for transmitting mechanical torque between a driving member and a driven member, in particular between a heat engine and an air compressor () for supplying power to the engine. Said transmission device includes at least one pulley (), for transmitting the torque between the driving member and the driven member, and a release means () controlling at least one of said pulleys () so as to enable the transmission of the torque between the driving member and the driven member when the latter are in an engaged state, or so as to restrict the transmission when the latter are in a disengaged state. The invention also relates to an air-compression system for supplying power to a heat engine, in particular for a motor vehicle, said system including a compressor () and a torque-transmitting device () enabling torque to be taken up on a belt () of the engine and said torque to be transmitted to the compressor, said transmission device () being capable of transmitting said torque at a first transmission ratio up to a certain engine speed threshold and of no longer transmitting said torque when said threshold is exceeded, or of transmitting said torque at a lower transmission ratio when the engine speed is above said threshold.

Device for transmitting mechanical torque between a driving member and a driven member, and air-compression system for supplying power to an engine using such a device

The invention relates to a device for heating the heat engine () of a vehicle, comprising: a reactor () in which a reagent that can cause an exothermic reaction with a reaction fluid is disposed, a circuit () for supplying reaction fluid to the reactor (), a heat-exchange circuit () between the reactor () and the heat engine () of the vehicle, and a circuit () for regenerating the reagent.

Growing community of inventors

Les Brevieres, France

Thierry Cheng