METHOD FOR ESTIMATING AN AMOUNT OF FRESH AIR, RECORDING MEDIUM AND ESTIMATOR FOR SAID METHOD, AND VEHICLE PROVIDED WITH SAID ESTIMATOR

摘要

The invention relates to a method for estimating an amount of fresh air, taken into an engine cylinder combustion chamber during an engine cycle, from a model parameterized with angles for opening and closing intake and exhaust valves. Said method comprises calibrating (120) the model to a nominal temperature for operating the engine, said calibration also involving setting the value of the opening and closing angles. During operation of the engine at a temperature different from the nominal temperature, the method comprises correcting (126) the set opening and closing angles on the basis of an estimate of the distribution clearance between the valves and the rocker arms thereof.