Method and arrangement for improving the estimation accuracy for the phase angle of the camshaft in an internal combustion engine with a variable cam setting

摘要

It is a method and an arrangement for determining an estimate of the current phase angle of a camshaft (84) of an internal combustion engine with improved accuracy is described, wherein said estimation on a read phase angle of the camshaft (84) is based on the value of a sensor for a camshaft phase (36) and a predicted phase angle of the camshaft (84) is based, wherein the predicted phase angle of the camshaft (84) seinersetis from a desired or predetermined phase angle of the camshaft (84) is obtained. The estimated phase angle of the camshaft (84) is formed by an electronic control unit (18) in the processing of the desired, of the phase angle of the camshaft (84) settings dependent on used for the engine variable.