Control apparatus for internal combustion engine

摘要

A control apparatus for an internal combustion engine is provided which can accurately correct a valve timing deviation of an intake valve caused by a variable operating angle mechanism or variable phase mechanism.;A variable operating angle mechanism (28a) for making the operating angle of an intake valve (24) variable is provided. Operating angle command values (operating angles 1 and 3) of two points in front and back at which the intake air amount is decreased by a predetermined amount with respect to the value that is judged to be a maximum value of the intake air amount when the operating angle (command value) is kept changing, are acquired. Then, an intermediate value which is at an equal distance from the operating angle command values of the two points is calculated as the maximum operating angle command value. Then, this maximum operating angle command value is compared with a reference characteristic to execute the calculation of the deviation amount of the valve timing and the correction of the deviation.

主权项

1. A control apparatus for an internal combustion engine, comprising:
a variable operating angle mechanism which makes an operating angle of an intake valve variable; operating angle control means which controls the variable operating angle mechanism based on an operating angle command value relating to the operating angle of the intake valve; air amount acquisition means which acquires an intake air amount of the internal combustion engine; estimation means which estimates a maximum operating angle command value at which the intake air amount indicates a maximum value in association with a change of the operating angle command value, based on a value of the intake air amount acquired during a control of the operating angle of the intake valve based on each of the operating angle command values of at least two points; and correction means which corrects a deviation of a valve timing of the intake valve by comparing the maximum operating angle command value estimated by the estimation means with a reference value.