Method for controlling a direct-injection internal combustion engine and engine using such a method

A method for controlling an internal combustion engine having a means for directly injecting fuel into the combustion chamber, a cylinder, a means for admitting at least one fluid into the chamber, a burned-gas exhaust means, and a processing and control unit receiving information on at least a driver's torque demand and engine speed, comprising:

• a) determining the desired torque corresponding to driver demand;
• b) from the desired torque, determining a desired Indicated Meon Effective Pressure (IMEP) from which the parameters are established to control admission of at least one fluid into the combustion chamber;
• c) determining a specified value of the IMEP from the desired IMEP and at least one magnitude linked to the fluid admitted into the combustion chamber, to define the fuel injection parameters in the combustion chamber.

A direct injection internal combustion engine having at least one cylinder with a combustion chamber including means for injecting fuel into the combustion chamber, a means for admitting at least one fluid into the combustion chamber, and a burned-gas exhaust means, a processing and control unit for controlling combustion in the chamber, including a module for controlling the admission parameters of at least one fluid into the combustion chamber, a module for controlling the fuel injection parameters, and an acquisition/specification module for the modules.