Valeo Equipements Electriques Moteur

Cedric Leboeuf

Hugues Doffin

Julien Masfaraud

Farouk Boudjemai

Paul Armiroli

Brice Lecole

Oussama Rouis

Jean-Marc Dubus

Ertugrul Taspinar

Magali Laurence

Alain Gerard

Arnaud De Vries

Mattieu Treguer

Eric Blanc

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

The device according to the invention for charging a first electrical energy storage element (), in particular an ultracapacitor, from a second electrical energy storage element (), in particular a battery, is of the type of those comprising a reversible DC/DC converter () arranged between the first and second elements (). In accordance with the invention, the device moreover comprises a stepdown voltage converter () arranged between the DC/DC converter () and the first element (). Advantageously, the device comprises means controlled () so as to charge with a low current the first element () from the second element (), in particular a battery in a poor state of charge, so as to allow the starting of an engine of a motor vehicle even from a battery in a poor state of charge.

Method and device for charging an electrical energy storage element, in particular an ultracapacitor

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Creteil, France

Cedric Leboeuf