Method For Determining A Cylinder Pressure-Crankshaft Position Assignment For An Internal Combustion Engine

A method for determining a cylinder pressure-crankshaft position association for an internal combustion engine, comprising:

• metrological detection of a crankshaft angle;
• metrological detection of a cylinder pressure;
• calculating of a cylinder volume based at least in part on the crankshaft angle;
• determining of a curve for a logarithmic cylinder pressure over a logarithmic cylinder volume based at least in part on the crankshaft angle;
• analyzing the curve;
• determining of an offset value for the crankshaft angle for determining a temporal cylinder pressure-crankshaft position association;
• concluding that a cylinder pressure signal is retarded in relation to a crankshaft angle signal when an intersection of curve segments of the curve is determined in a region of a cylinder reversal point;
• and
• determining an offset value for compensating displacement is determined as a function of a surface area between the curve segments of the curve in the region of the cylinder reversal point.