Method for diagnosing an engine control unit and corresponding engine control unit

摘要

A method for diagnosing an engine control unit ( 4 ) conducts an analysis as to whether the signal values from the cylinder pressure sensors ( 3 ) are faulty based on at least one characteristic value which is derived from an evaluation of signal values from the cylinder pressure sensors ( 3 ) of the cylinders ( 2 ) in a combustion engine ( 5 ). In addition to this is described the engine control unit ( 4 ) designed to execute the method. Also hereby disclosed is a method which, based on symmetrical aspects, determines a crankshaft angle (phipCylMaxTDC) for a cylinder pressure maximum during push mode operation of the combustion engine ( 5 ).