Valeo Systemes De Controle Moteur

Valeo Electrification

Nicolas Gelez

Boris Bouchez

Damien Fournigault

Emmanuel Talon

Olivier Dixneuf

Piotr Zakrzewski

Denis Gravat

Jean-Guilhem Dalissier

Julien Hobraiche

Ronan Danioux

Jean-Guiherm Dalissier

Johannes Vater

Olivier Gueguen

The invention relates to a method for manufacturing a temperature sensor with a thermocouple, which includes the following consecutive steps: a) manufacturing a cable with mineral insulator () including two thermocouple wires () extending along the entire length of the cable with mineral insulator and embedded in a mineral insulator (); b) stripping one of the ends of the cable with mineral insulator over a length of 2 to 20 mm, preferably less than 15 mm, preferably less than 10 mm, such as to expose the ends of the thermocouple wires; c) connecting the ends () of the thermocouple wires thus exposed, such as to constitute a thermocouple hot spot (); and d) attaching a cap () to said cable with mineral insulator so as to protect said hot spot.

Temperature sensor

A valve actuator for a combustion engine has a movable member for collaborating with a stem of a valve, and an electromagnetic device with a permanent magnet associated with a resilient device for moving the movable member between an extreme valve-closed position and an extreme valve-open position. A method of controlling the valve actuator has the steps of determining a clearance range between the movable member and the valve stem during the movement of the movable member between the extreme closed and open positions, determining, in the clearance range, intermediate positions reached by the movable member as a function of different values of an electrical control parameter of the electromagnetic device, and using positional feedback control to control the electromagnetic device, using one of the intermediate positions as a setpoint value, according to the desired performance of the actuator.

Method of controlling an actuator having a movable member with positional feedback control

The invention relates to a method for controlling a valve () in a thermal engine (), the valve having a closed position and an opened position, the method comprising at least one step of opening the valve, said step including at least one phase (I) for bringing the valve into an open position and a phase (II) for maintaining the valve in an intermediate position between the closed position and the opened position. The invention also relates to a device for implementing this method and to a method for supplying an engine with an oxidant.

Method and device for controlling a valve with several lift phases, and method for supplying a thermal engine with oxidant

The invention relates to a valve control system for an engine including at least one cylinder () with valves (), wherein said system comprises valve electromagnetic actuation members () associated with a management unit () that controls the actuation members, said system comprising a member () for detecting a malfunction of the actuation members and a member () for electrically insulating the faulty actuation member.

Valve control system with malfunction detection

The invention relates to a system for controlling a thermal engine with valves, that comprises an engine control unit () and a plurality of valve actuators (), wherein the engine control unit is connected to a communication bus () and the actuators are distributed into at least two sets each comprising a connection interface () to the communication bus, the engine control unit being designed so as to define actuator driving instructions and to transmit into the bus and for each set an individualised frame including the driving instructions for the related set.

Method for the individual control of a set of valve actuators by the ECU

The invention relates to a device for controlling a valve () between an opened position and a closed position, that includes a valve actuation organ (), an elastic system () for oscillating the actuation organ between two end positions, at least one electromagnet () associated with a control unit () for attracting the actuation organ towards its end positions, wherein the control unit supplies power to the electromagnet for attracting the actuation organ into a first end position when the required energy amount is at most equal to a threshold and for allowing the actuation organ to move back to the other end position when this amount is higher than the threshold. The invention also relates to a control method.

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Le Pecq, France

Nicolas Gelez