Patent ID: 7011063

Claim:
Method of stopping and restarting an internal combustion engine with indirect injection and spark ignition, comprising at least one cylinder, in which a piston, a fuel inlet manifold communicating with the cylinder and a rotating part set in rotation by the piston, via a connecting rod, move, wherein: the speed of rotation and the position of the piston and of the rotating part of the engine are measured continuously, and the fuel injection is cut off at predetermined speed and angular position values of the rotating part of the engine in order to stop the piston and the rotating part in a predetermined position, a fuel feedstock is injected into the inlet manifold of one of the cylinders which is in the intake phase, during the last revolution of the engine before it stops in a predetermined position, upon restarting the engine, after it has stopped, by setting the rotating part of the engine in rotation, the implementation of the compression phase in the cylinder is identified and ignition of the feedstock is carried out in the cylinder in the compression phase, and the successive feedstock injection and ignition in at least one cylinder are carried out according to a predetermined sequence, in order to optimize consumption and emissions and to limit overspeeding of the engine during starting, thus improving the quality of the start.