Device for controlling an internal combustion engine

摘要

A device for controlling an internal combustion engine, which automatically corrects an error of a reference position in order to avoid incorrect calculation of a control parameter and thus precisely control the internal combustion engine has the following: a period measuring device (310A) for measuring a period of a number of reference position ranges and a period of a number of areas, corresponding to cylinders, of a reference position signal, an angle error detection device (340) for detecting an angle error in each reference position range in accordance with the period of the reference position ranges and the period of the areas corresponding to the cylinders and an error differentiating unit (350) for determining the validity of the angle error in order to produce a final angle error, a timer control unit (320A) correcting the control parameters according to the ultimate angle error and a control timer unit (330A) correcting, according to the ultimate angle error, a period controlled by the timer. <IMAGE>