Peugeot Citroen Automobiles Sa

Delphi Technologies, Inc.

Delphi Technologies Holdings Sarl

Delphi International Operations Luxembourg S.a.r.l.

Vincent Souchon

Guillaume Meissonnier

Claire Vermonet

Benjamin Desmarquet

Faycal Souidi

Patrick Gaillard

Fayçal Souidi

System for controlling the operation of a motor vehicle diesel engine in which the supply of fuel to the cylinders is controlled as a function of the pressure of a reference cylinder acquired and a predetermined desired fuel supply value for each cylinder, the supply of fuel to the reference cylinder is slaved to its desired supply value as a function of the pressure acquired, the drive shaft rotation speed generated by the displacement of the piston of the reference cylinder and the drive shaft rotation speed generated by the displacement of the piston of at least one other cylinder are acquired, and the supply of fuel to this at least one other cylinder is actuated as a function of the speeds acquired by slaving the drive shaft rotation speed related to the at least one other cylinder to the drive shaft rotation speed related to the reference cylinder.

System for controlling the operation of a diesel engine of a motor vehicle

The invention relates to a system for controlling the operation of a diesel engine of a motor vehicle, associated with means for supplying the cylinders with fuel and with means for recirculating waste gases at the admission. The control system comprises means for controlling the supply means according to the rotation speed of the engine and an effective torque control point and means for controlling the recirculating means according to the at least one effective torque control point. The system comprises means for determining a torque control point which is reconstructed from information provided by means for acquisition of the richness of the waste gas of the engine and air supply at the admission thereof and means for adjusting the means for controlling the recirculating means according to the effective torque control point and the reconstructed torque control point in order to minimize the emission of pollutants by the engine.

The invention relates to a diesel engine comprising a device for controlling the flow of injected fuel with at least one fuel injector supplying a combustion chamber, controlled by a processor provided with means for controlling a series of operations of the injector of differing durations, means for measuring a minimal activation time (&#x394;T&#x394;T) between the issuing of a command and the beginning of an injection and means for subsequently controlling the injector as a function of the measured minimal activation time. According to the invention, the engine is characterized in comprising means for determining the heat output (dQ) brought about by the mixture of air and fuel injected into the chamber and to measure the minimum activation time using said determinations.

Diesel engine comprising a device for controlling the flow of injected fuel

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Paris, France

Vincent Souchon