Patent ID: 7527032
Filing Date: 2009-05-05
Classification: F02D,Y02T

Abstract:
1. Method for controlling the operation of a cylinder of an internal combustion engine of the four-stroke, multi-cylinder type, said cylinder cooperating with at least one fuel injector, an intake valve, an exhaust valve, operating members for controlling the opening of the valves according to the course of the cycle, and means driven by an engine control computer according to predetermined operating conditions of said engine to deactivate or activate selectively said valves of said cylinder, wherein the deactivation of said valves is performed simultaneously, and the deactivation of said valves is performed in the course of a cycle, at a time coinciding substantially with the middle of the period extending between the computer-calculated consecutive opening time of the intake valve (OI) and opening time of the exhaust valve (OE), wherein said driven means have a delay between their control by said computer and the actual activation or deactivation of said valves, and this delay is taken into account to perform the control of said means, and wherein an error value is determined on the measurement of said delay.